[User]
Hey, I'm looking for an OpenSCAD design for a customizable card tray, and I'd like to have it be able to optionally include a storage box on the back side. I've got a lot of games with cards that need better organization, and I'd like something that can be tweaked for each of them.

Here are the main features and parameters I'd like:

**General:**

*   I need a `wall_thickness` parameter, so I can adjust the sturdiness of the print. I'd like the default to be 2mm but make it customizable.

**Card Dimensions:**

*   I need to specify the `card_width` and `card_length`.
*   There also should be a small `card_length_margin`, which adds a little extra space along the card's length. The default should be 1mm.

**Tray Specifics:**

*   The tray should have a `tray_card_width_margin`, which adds extra space to the depth of the tray. Maybe 2.5mm default?
*   The overall height of the tray's walls is adjustable using `tray_height`. Default should be 34mm.
*   I'd like a curved front to the tray. The `tray_front_radius` parameter controls this. I'm thinking 14mm would look nice.
*   There should be separate `tray_rear_floor_height` and `tray_front_floor_height` parameters so that the bottom can be sloped towards the back. Maybe 4mm and 6mm respectively?

**Front Finger Cutout:**

*   I need an optional `create_front_finger_cutout` boolean option.
*   If true, I'll need `front_finger_cutout_radius` (default 20mm), `front_finger_cutout_depth` (default 50mm), and `front_finger_cutout_corner_radius` (default 10mm) to shape it.

**Tray Floor Cutout:**

*   An optional `create_tray_floor_cutout` boolean.
*   If true, I'll need `tray_floor_cutout_length` (default 65mm), `tray_floor_cutout_width` (default 40mm), `tray_floor_cutout_distance_from_back` (default 15mm), `tray_floor_cutout_circle_radius` (default 0, so no circle by default), `tray_floor_cutout_circle_depth` (default 18mm), and `tray_floor_cutout_corner_radius` (default 5mm).

**Rear Tray Wall Cutout:**

*   Another optional `create_rear_wall_cutout` boolean.
*   If true, I'll need parameters: `rear_tray_wall_cutout_radius` (default 60mm), `rear_tray_wall_cutout_depth` (default 20mm), and `rear_tray_wall_cutout_corner_radius` (default 20mm).

**Rear Box Options:**

*   I need a `generate_rear_box` boolean option.
*   If true, I'll need a `box_height` (default 70mm), `box_interior_space` (default 40mm), `box_rear_floor_height` (default 8mm), and `box_front_floor_height` (default 2mm) parameters.

**Box Front Wall Cutout:**

*   An optional `create_front_wall_cutout` boolean for the box.
*   If true, I need `front_box_wall_cutout_radius` (default 30mm), `front_box_wall_cutout_depth` (default 50mm), and `front_box_wall_cutout_corner_radius` (default 10mm).

**Box Floor Cutout:**

*   Finally, an optional `create_box_floor_cutout` boolean.
*   If true, I'll need `box_floor_cutout_length` (default 60mm) and `box_floor_cutout_width` (default 20mm).

I'd like a single file (or as few as possible) that contains all the parameters and modules. I'm hoping this can be as flexible as possible for all my various card games.

For rounding corners, can you use an `offset()` technique to ensure that all corners are rounded correctly, rather than an approach like `minkowski()`.

Let me know if you have any questions.

[Assistant]
Card_Tray_v1.0.scad:
```
/* [General Settings] */
// In mm, how thick should the walls be?
wall_thickness = 2; //[0.1:0.1:10]

/* [Card Dimensions] */
// In mm, how wide are the cards?
card_width = 65.5; //[200]

// In mm, how long are the cards?
card_length = 91; //[200]

// In mm, how much extra room should there be along a cards length in the tray/box?
card_length_margin = 1;//[0.5:0.5:10]

/* [Card Tray Settings] */
// In mm, how much deeper than the card width should the tray be?
tray_card_width_margin = 2.5; //[0.5:0.5:10]

// Calculated depth of the front tray.
tray_depth = card_width + tray_card_width_margin + wall_thickness;

// In mm, how tall should the walls of the tray be? This is the overall height including the floor.
tray_height = 34; //[200]

// How much of a curve should there be to the front of the tray? Set 0.1 for no curve.
tray_front_radius = 14; //[100]

// In mm, how thick should the floor be in the back of the tray?
tray_rear_floor_height = 4; //[100]

// In mm, how thick should the floor be in the front of the tray?
tray_front_floor_height = 6; //[100]

/* [Front Finger Cutout Settings] */
// Do you want a cutout in the front floor of the tray to make picking up the deck up easier?
create_front_finger_cutout = "No"; //["Yes", "No"]

// How wide should the cutout be?
front_finger_cutout_radius = 20; //[200]

// In mm, How deep should the cutout be?
front_finger_cutout_depth = 50; //[200]

// How rounded should the cutout corners be?
front_finger_cutout_corner_radius = 10; //[100]

/* [Tray Floor Cutout Settings] */
// Do you want to a cutout in the floor of the tray?
create_tray_floor_cutout = "Yes"; //["Yes", "No"]

// In mm, how long should the cutout be?
tray_floor_cutout_length = 65; //[100]

// In mm, how wide should the cutout be?
tray_floor_cutout_width = 40; //[100]

// In mm, how far from the back wall should the cutout be?
tray_floor_cutout_distance_from_back = 15; //[100]

// How wide should the circular inset be?
tray_floor_cutout_circle_radius = 0; //[100]

// In mm, how deep should the circular inset protrude?
tray_floor_cutout_circle_depth = 18; //[100]

// How rounded should the cutout corners be?
tray_floor_cutout_corner_radius = 5; //[100]

/* [Rear Tray Wall Cutout Settings] */
// Do you want to a cutout in the rear wall of the tray? If generating the rear box, use the Box Front Wall cutout instead.
create_rear_wall_cutout = "No"; //["Yes", "No"]

// How wide should the cutout be?
rear_tray_wall_cutout_radius = 60; //[100]

// In mm, How deep should the cutout be?
rear_tray_wall_cutout_depth = 20; //[100]

// How rounded should the cutout corners be?
rear_tray_wall_cutout_corner_radius = 20; //[100]

/* [Rear Box Settings] */
// Do you want to attach a box to the rear of the tray?
generate_rear_box = "No"; //["Yes", "No"]

// In mm, how tall should the walls of the box be? This is the overall height including the floor.
box_height = 70; //[200]

// In mm, how wide should the interior of the box be? (Thickness of the entire deck of cards placed in the box).
box_interior_space = 40; //[200]
box_width = box_interior_space + wall_thickness;

// In mm, how thick should the floor be in the back of the box?
box_rear_floor_height = 8; //[100]

// In mm, how thick should the floor be in the front of the box?
box_front_floor_height = 2; //[100]

/* [Box Front Wall Cutout Settings] */
// Do you want to a cutout in the front wall of the box?
create_front_wall_cutout = "Yes"; //["Yes", "No"]

// How wide should the cutout be?
front_box_wall_cutout_radius = 30; //[100]

// In mm, How deep should the cutout be?
front_box_wall_cutout_depth = 50; //[100]

// How rounded should the cutout corners be?
front_box_wall_cutout_corner_radius = 10; //[100]

/* [Box bottom Cutout Settings] */
// Do you want to a cutout in the floor of the box?
create_box_floor_cutout = "Yes"; //["Yes", "No"]

// In mm, how long should the cutout be?
box_floor_cutout_length = 60; //[100]

// In mm, how wide should the cutout be?
box_floor_cutout_width = 20; //[100]

/* [Hidden] */
// Calculated overall width of the deck boxes.
overall_width = card_length + card_length_margin + (wall_thickness * 2);

// Global resolution
$fs = 0.5;  // The minimum size for a fragment
$fa = 1;    // The minimum angle of a fragment

// ########## Project Space ##########
tray();
if(generate_rear_box == "Yes") translate([0, tray_depth, 0]) box();

// ########## Modules ##########
module tray(){
// Generate the final card tray.

	// Subtract the floor cutout from bottom of the tray.
	difference(){

		// Create a single object from the floor and the walls.
		union(){

			// Create the cutout in rear wall. This needs to be done before
			// joining the floor, so this shape does not cut into the floor.
			intersection(){
				tray_walls();
				if(create_rear_wall_cutout == "Yes") rear_tray_wall_cutout();
			}

			// Create the front finger cutout in the floor of the tray.
			intersection(){
				tray_floor();
				if(create_front_finger_cutout == "Yes") front_finger_cutout();
			}
		}

		// Create the shape of the floor cutout.
		if(create_tray_floor_cutout == "Yes") tray_floor_cutout();
	}
}

module tray_shell(){
// Generate the basic shape of the tray, including the front curve.
	// Reset the shell's location so the front left corner is at the origin.
	translate([0, tray_depth, tray_height])

	// Rotate the shell so that the bottom is facing down and the front is facing the x axis.
	rotate([-90 ,0 ,-90])

	// Extrude the shell to the width of the tray.
	linear_extrude(overall_width)

	// Craft the profile of the shell.
	hull(){

		// Create a point that will be the rear, bottom of the tray.
		square(0.01);

		// Create a point that will be the rear, top of the tray (how tall).
		translate([0, tray_height, 0]) square(0.01);

		// Create a point that will be the front, bottom the tray (how deep).
		translate([tray_depth,tray_height,0]) square(0.01);

		// Create a circle that will be the front, top of the tray. Creates the curved front.
		intersection(){

			// Constrain the circle that creates the curve to the confines of the tray's dimensions.
			square([tray_depth, tray_height]);

			// Create the circle
			translate([tray_depth - tray_front_radius, tray_front_radius, 0]) circle(r=tray_front_radius);
		}
	}
}

module tray_walls(){
// Generate the wallls of the tray.
	// Cut out the interior of the tray from the shell.
	difference(){

		// Generate the shell that defines the basic shape of the tray.
		tray_shell();

		// Position the negative space to account for wall_thickness and to ensure a clean cut in the front and bottom.
		translate([wall_thickness, -1, -1]){

			// Generate the negative space, oversizing the depth and height for a clean cut.
			// If generating a box behind the tray, also remove the rear wall of the tray.
			if (generate_rear_box == "Yes") {
				cube([card_length + card_length_margin,
									card_width + tray_card_width_margin + wall_thickness + 2,
									tray_height + 2]);
			}

			// Otherwise keep the rear wall.
			else {
				cube([card_length + card_length_margin,
									card_width + tray_card_width_margin + 1,
									tray_height + 2]);
			}
		}
	}
}

module tray_floor(){
// Generate the tray floor.
	// Constrain the floor to the confines of the tray's shape. This creates a
	// smooth shape that confines to the curve at the front of the tray.
	intersection(){

		// Generate the shell that defines the confines of the tray's shape.
		tray_shell();

		// Join the front and back of the tray to create a solid floor.
		generate_floor(overall_width, tray_depth, tray_rear_floor_height, tray_front_floor_height);
	}
}

module generate_floor(width, depth, rear_floor_height, front_floor_height){
// Generate floor with an optional slope.
	// Join the front and back of the floor to create a solid floor.
	hull(){

		// Create the origin and height of the floor at the back side.
		translate([0, depth, 0]) cube([width, 0.1, rear_floor_height]);

		// Create the origin and height of the floor at the front side.
		cube([width, 0.1, front_floor_height]);
	}
}

module cutout_shape(width, depth, height, circle_radius, circle_depth, corner_radius, buffer=false){
// Generate the shape used for the various cutouts.
// Set buffer to true to oversize the shape. Useful to avoid rounding exterior edges when using intersection.
	// Extrude the shape to the desired height.
	linear_extrude(height, convexity=2){

		// Round the corners of the shape.
		soften(corner_radius){

			// Subtract a circle from the front of the shape.
			difference(){

				// If the buffer is set to true, create a larger shape and offset it slightly to center it along the width.
				if(buffer)translate([-corner_radius, 0, 0]) square([width + (corner_radius * 2), depth + corner_radius]);

				// If the buffer is set to false, create the shape to the specified dimensions.
				else square([width, depth]);

				// Create and position the circle.
				translate([width / 2, circle_depth - circle_radius, 0]){
					circle(r=circle_radius);
					translate([0, -circle_depth / 2, 0]) square([circle_radius * 2, circle_depth], center=true);
				}
			}
		}
	}
}

module front_finger_cutout(){
// Create the shape of the finger cutout at the front of the tray.
	cutout_shape(overall_width,
				 tray_depth,
				 tray_height,
				 front_finger_cutout_radius,
				 front_finger_cutout_depth,
				 front_finger_cutout_corner_radius,
				 buffer=true);
}

module rear_tray_wall_cutout(){
// Create the shape of the cutout in the rear wall of the tray.
	// Raise the shape to the ground plane after rotating.
	translate([0, 0, tray_height])

	// Orient the shape so the cutout is inline with the rear wall.
	rotate([-90, 0, 0])

	// Create the shape.
	cutout_shape(overall_width,
				 tray_height,
				 tray_depth,
				 rear_tray_wall_cutout_radius,
				 rear_tray_wall_cutout_depth,
				 rear_tray_wall_cutout_corner_radius,
				 buffer=true);
}

module tray_floor_cutout(){
// Create the shape of the cutout in the floor of the tray.
	// Final position of the cutout shape, centered in the tray, offset from the back wall,
	// and slight below the tray floor for a clean cut.
	translate([(overall_width - tray_floor_cutout_length) / 2,
						tray_depth - wall_thickness - tray_floor_cutout_distance_from_back,
						-1])

	// Reset the position of the shape to the origin so it is easier to comprehend the math above.
	translate([0, -tray_floor_cutout_width, 0]){

		// Create the shape.
		cutout_shape(tray_floor_cutout_length,
			 	tray_floor_cutout_width,
			 	tray_height + 2,
			 	tray_floor_cutout_circle_radius,
			 	tray_floor_cutout_circle_depth,
				tray_floor_cutout_corner_radius,
			 	buffer=false);
	}
}

module box(){
// Create the walls of the box.
	box_rear_and_side_walls();
	box_front_wall();
	box_floor();
}

module box_floor(){
	difference(){
		// Create the floor of the box.
		generate_floor(overall_width,
									 box_width,
									 box_rear_floor_height,
									 box_front_floor_height);

		// Create the cutout.
		if(create_box_floor_cutout == "Yes") box_floor_cutout();
	}
}

module box_front_wall_cutout(){
// Create the shape of the cutout in the rear wall of the tray.
	// Raise the shape to the ground plane after rotating.
	translate([0, 0, box_height])

	// Orient the shape so the cutout is inline with the rear wall.
	rotate([-90, 0, 0])

	// Create the shape.
	cutout_shape(overall_width,
				 box_height,
				 wall_thickness,
				 front_box_wall_cutout_radius,
				 front_box_wall_cutout_depth,
				 front_box_wall_cutout_corner_radius,
				 buffer=true);
}

module box_floor_cutout(){
	// Center the cutout on the box floor and offset it below the floor for a clean cut.
	translate([(overall_width - box_floor_cutout_length) / 2, box_width / 2, -1])

	// Reset the location of the cutout so the above movements are easier to understand.
	translate([box_floor_cutout_width / 2, 0, 0])

	// Expand the shape of the cutout through the top of the floor.
	linear_extrude(box_height)

	// Create the shape of the cutout.
	hull(){

		// Create the first point in the cutout.
		circle(d=box_floor_cutout_width);

		// Create the second point in the cutout.
		// Move the point so the resulting shape is the cutout length.
		translate([box_floor_cutout_length - box_floor_cutout_width, 0, 0]){
			circle(d=box_floor_cutout_width);
		}
	}
}

module box_front_wall(){
// Create the front wall of the box.
	// Create the cutout in the front wall
	intersection(){
		// Generate the front wall of the box.
		cube([overall_width, wall_thickness, box_height]);

		// Generate the cutout shape.
		if(create_front_wall_cutout=="Yes") box_front_wall_cutout();
	}
}

module box_rear_and_side_walls(){
// Creat the side and rear walls of the box.
	// Extrude to the height of the box.
	linear_extrude(box_height)

	// subtract the interior dimension othe box from the shell.
	difference(){
		// Create the box shell.
		square([overall_width, box_width]);

		// Create the negative space inside the box.
		translate([wall_thickness, 0, 0]){
			square([overall_width - (wall_thickness * 2), box_width - wall_thickness]);
		}
	}
}

module soften(amount){
// Round the corners of a 2D object.
	offset(r=amount) offset(r=-amount){
		children(0);
	}
}

```


[User]
I'd like to design a parametric vase with a repeating pattern on its surface, and I have some specific ideas about how I want it to look. I'm aiming for something that allows a lot of customization.

First off, I want to control the overall size of the vase, so I'll need parameters for `HEIGHT` and `RADIUS`. I also need to set the `WALL_WIDTH` and `BOTTOM_HEIGHT`.

For the surface pattern itself, I'd like to create a grid of repeating cells. I need parameters to control the number of `ROWS` and `COLS`. Within each of these cells, I'm going to create a sort of pin or protrusion, and I want to be able to adjust its size and direction using an `OFFSET` parameter.

I also want to add a twist to the vase. This twist should have options for a `TWIST_TYPE`, where I can choose between linear twist or a sinusoidal twist. The overall `TWIST` amount and a `TWIST_PERIOD` for the sinusoidal option would also be necessary.

Finally, and probably the trickiest part, I want the main shape of the vase to be defined by a Bezier curve. I need to be able to specify the number of segments on the curve `BEZIER_SEGMENTS` , and the coordinates of control points for each segment: `X0`, `Y0`, `X1`, `Y1`, `X2`, `Y2`, up to `X6`, `Y6` . I'd imagine that the curve would control the radius of the vase as the height increases.

I'm thinking this is a pretty complex design, so it should probably generate a main .scad file that handles all the calculations and a separate .scad file that holds the 3D models that would be used in the main calculations. I'm not sure, but I think it might be easier to handle calculations if I defined points in a [x, y, z] form instead of separate coordinates. I don't have any external libraries that I need to use here, so I'll just need the standard OpenSCAD functionality.

[Assistant]
pattern_vase_main.scad:
```
/* [Size] */
HEIGHT = 140; // [10:300]
RADIUS = 40; // [5:200]
WALL_WIDTH = 0.8; // [0.4:0.05:2]
BOTTOM_HEIGHT = 0.8; // [0.4:0.05:2]
/* [Pattern] */
ROWS = 12; // [1:36]
COLS = 24; // [3:36]
// direction and size of pin
OFFSET = -4.0; // [-10:0.1:10]
/* [Twist] */
TWIST_TYPE = 2; // [1:Linear, 2:Sinus]
TWIST = 60; // [0:360]
TWIST_PERIOD = 0.25; // [0.05:0.05:18]
/* [Shape] */
// Count of bezier curve segments
BEZIER_SEGMENTS = 2; //[1:1 - Used 0-2 points, 2:2 - Used 0-4 points, 3:3 - Used 0-6 points]
// Point 0 X
X0 = 1.1; // [0.25:0.05:3]
// Point 0 Y
Y0 = 1.0;// [0.25:0.05:3]
// Point 1 X
X1 = 1.75;// [0.25:0.05:3]
// Point 1 Y
Y1 = 1.0;// [0.25:0.05:3]
// Point 2 X
X2 = 1.5; // [0.25:0.05:3]
// Point 2 Y
Y2 = 1.2;// [0.25:0.05:3]
// Point 3 X
X3 = 1.1;// [0.25:0.05:3]
// Point 3 Y
Y3 = 1.4;// [0.25:0.05:3]
// Point 4 X
X4 = 1.0;// [0.25:0.05:3]
// Point 4 Y
Y4 = 1.0;// [0.25:0.05:3]
// Point 5 X
X5 = 0.9;// [0.25:0.05:3]
// Point 5 Y
Y5 = 0.7;// [0.25:0.05:3]
// Point 6 X
X6 = 1.1;// [0.25:0.05:3]
// Point 6 Y
Y6 = 1.1;// [0.25:0.05:3]

/* [HIDDEN] */
bezier_points_X = [X0, X1, X2, X3, X4, X5, X6];
bezier_points_Y = [Y0, Y1, Y2, Y3, Y4, Y5, Y6];

CELL_H = HEIGHT/ROWS;
CELL_A = 360/COLS;

function bezier(t, p) =
    let (
        l = 1/BEZIER_SEGMENTS,
        s = (t <= l) ? 0 : ((t <= 2*l) ? 1 : 2),
        x = (t - s*l)/l
    )
    (1-x)*(1-x)*p[s*2] + 2*x*(1-x)*p[s*2+1] + x*x*p[s*2+2];

pattern_points = [
        [0,0,0], [0, 1.01, 0], [1.01, 1.01, 0], [1.01, 0, 0], [0.5, 0.5, 1.01],
        [0,0,WALL_WIDTH/OFFSET], [0, 1.01, WALL_WIDTH/OFFSET], [1.01, 1.01, WALL_WIDTH/OFFSET], [1.01, 0, WALL_WIDTH/OFFSET], [0.5, 0.5, 1+WALL_WIDTH/OFFSET]
    ];
pattern_faces = [
        [0, 1, 4], [1, 2, 4], [2, 3, 4], [3, 0, 4],
        [6, 5, 9], [7, 6, 9], [8, 7, 9], [5, 8, 9],
        [1, 0, 6], [2, 1, 7], [3, 2, 8], [0, 3, 5],
        [0, 5, 6], [1, 6, 7], [2, 7, 8], [3, 8, 5]
    ];
bottom_points = [for (i=[0:COLS-1])
        let (
            a = i*CELL_A,
            x = RADIUS*cos(a)*bezier_points_X[0],
            y = RADIUS*sin(a)*bezier_points_Y[0]
        )
        [x, y]
    ];

function surface_transform_points(r, c, points) =
    [for (p=points)
        let(
            z = (r + p[1])*CELL_H,
            a = (c + p[0])*CELL_A - TWIST*(TWIST_TYPE == 1 ? (z/HEIGHT) : sin(360*TWIST_PERIOD*z/HEIGHT)),
            x = RADIUS*cos(a)*bezier(z/HEIGHT, bezier_points_X) + OFFSET*p[2]*cos(a),
            y = RADIUS*sin(a)*bezier(z/HEIGHT, bezier_points_Y) + OFFSET*p[2]*sin(a)
        ) [x, y, z]
    ];

function surface() = [for (r=[0:ROWS-1], c=[0:COLS-1])
    surface_transform_points(r, c, pattern_points)];

module draw_surface(){
    union(){
        for (s=surface())
            polyhedron(points=s, faces = pattern_faces);
        linear_extrude(height = BOTTOM_HEIGHT, center=false) polygon(points=bottom_points);
    }
}

draw_surface();

```


[User]
I'd like to create a custom screw and nut design using OpenSCAD, and I need a bit of help setting it up. I want to be able to specify the diameter, length, and pitch of the screw and nut, and also have some control over the clearance between them. I've found this library called "threads-library-by-cuiso-v1.scad" which looks pretty good for the threading part, and it includes a way to define both screws and nuts as well as some useful parameters. Could you create an OpenSCAD file or files that utilizes this library to give me this functionality?

Specifically, I'd like to be able to:

1.  Define the screw using parameters for diameter, length, and optionally pitch. If no pitch is defined, it should use the standard values provided in the library.
2. Define the nut using parameters for diameter, length, clearance, and optionally pitch. If no pitch is defined, it should use the standard values provided in the library. There should be a parameter to control the clearance between the screw and nut. Also, similar to the screw, it should use standard pitch values if a specific pitch isn't defined.
3. There should be a way to specify the resolution for the thread (the `divs` parameter from the library), but with a sensible default of 50 as the library uses.
4.  In addition, please add an option to include the entry chamfer feature for the nut thread (the `entry` parameter from the library), and have it enabled by default.
5.  I'd like to have a preview mode where I can see both the screw and the nut in the same view, for easy checking.

I plan to print these parts, so I'd like to ensure the design is robust. Could you also include some comments within the generated code to explain how each part is created? The library I'm planning to use is "threads-library-by-cuiso-v1.scad".

[Assistant]
examples.scad:
```
use <threads-library-by-cuiso-v1.scad>

//a list of examples of use for library threads-library-by-cuiso-v1.scad

//EXAMPLE, a simple SCREW with hexagonal head:
thread_for_screw(diameter=10, length=20);
cylinder(d=18, h=4, $fn=6);

//EXAMPLE, a simple hexagonal NUT:
translate([20,0,0])
difference(){
cylinder(d=18, h=6, $fn = 6);
thread_for_nut(diameter=10, length=6);
}

//EXAMPLE, a nut with 0.1 extra clearance:
translate([20,20,0])
difference(){
cylinder(d=18, h=6, $fn = 6);
thread_for_nut(diameter=10, length=6, usrclearance=0.1);
}

//EXAMPLE, a cube with two treads:
translate([-20,0,0])
difference(){

translate([0,0,15/2]) cube([15,15,15], center=true);

thread_for_nut(diameter=6, length=15);

translate([0,15/2,15/2]) rotate([90,0,0])
thread_for_nut(diameter=6, length=15);

}

//EXAMPLE, a rod with no standard pitch:
translate([0,20,0])
thread_for_screw_fullparm(diameter=20, length=30, pitch=6);

//EXAMPLE, a rod with no standard diameter:
translate([0,-20,0])
thread_for_screw(diameter=6.5, length=10); ;
```
threads-library-by-cuiso-v1.scad:
```
/*
"OpenScad library. Threads for screws and nuts V1"
by ANDRES ROMAN (AKA Cuiso) September 2018

-> V1.2 30/03/2021 Change Log:
- Since OpenScad version 2021.01 version 1.1 of this library stopped with error.
The necessary modifications have been made in this version 1.2
so that it also works with OpenScad 2021.01.
- Due to these necessary modifications, unfortunately now the preview
time has increased slightly.
- Remember that if necessary you can increase the speed for previewing and
rendering using the functions with full parameters and specifying a
smaller number of the "divs" parameter.
If you prefer, you can also improve the speed at a
general level by changing the variable "stddivs"
located on line 167, increasing this variable increases the
preview and rendering time (and increases the resolution),
decreasing the value of this variable decreases the time
preview and the resolution is lowered.
The default value of 50 is generally adequate and in
most cases you don't need to worry about this unless
your computer is really slow, or you want to get really large diameter threads.
This version continues to be compatible with OpenScad versions prior to 2021.01.
- Some warnings that did not affect operation have been removed.
- Some "echo" that did not affect operation have been removed.
- This version is completely compatible with your projects made
with previous versions, the name of the library "threads-library-by-cuiso-v1.scad"
has been kept so you do not have to change anything in your source code, you only
have to replace the old file "threads-library-by-cuiso-v1.scad" by the new
"threads-library-by-cuiso-v1.scad" and you are ready to work with OpenScad 2021.01.
- Happy designing !!!

-> V1.1 23/08/2019 Change Log:
-Fixed bug. Using fullparms functions with "divs" no divider of 360 (200 for example) the thread could be incomplete. Now you can use any number of "divs" without problem.
-A small improvement. Now the diameter reductions at the beginning of the screw for easy entry are created with the same level of detail as the rest of the screw.

* Copyright 2018 ANDRES ROMAN (AKA Cuiso)
* Licensed under the Creative Commons - Attribution license.
* This software is free software, you can Share and Adapt under the terms of Attribution
(give appropriate credit).
*
* you can visit https://creativecommons.org/licenses/by/3.0/ for more details

* This software is distributed WITHOUT ANY WARRANTY.

*/

//For use this library you can put the file threads-library-by-cuiso-v1.scad in the same directory of your proyect and put the line use <threads-library-by-cuiso-v1.scad> in your own .scad file
//You can see examples of use in file examples.scad

/*
This is a library to include threads for screws and nuts in your own designs.

This library is focused to provide simple functions with preset parameters by default,
and not to be too demanding in CPU consumption neither in previsualizacion nor in rendering

This library has been tested printing on PLA with 0.1 layer. Except for smaller diameter
threads layers greater than 0.1 should work well.
Diamaters tested between 3mm and 10mm, but you can use any diameter of your choice.

Shape of the threads are similar (but not equal) to ISO METRIC threads.
Some tests have been done using screws and nuts printed with this library in
combination with screws and nuts of metal with acceptable results. However, they have
not been exhaustive tests.
*/

/*
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
AVAILABLE FUNCTIONS:

BASIC FUNCTIONS (USING PREDEFINED PARAMETERS):

thread_for_screw(diameter, length);
    Generates a screw thread of the diameter indicated by the "diameter" parameter and of the length indicated by "length". This function uses standard pitch values depending on the diameter specified.
    diameter: Free value, in milimeters.
    length: Free value, in milimeters.

    Example:
    thread_for_screw(diameter=10, length=30);

thread_for_nut(diameter, length, usrclearance=0);
    Generates a nut thread of the diameter indicated by the "diameter" parameter and of the length indicated by "length". This function uses standard pitch values depending on the diameter specified.
    The generated thread can be subtracted from any element of your design using the operator "difference()", thus obtaining a thread where a screw will fit.
    This function uses standard clearance for adjustment between screw and nut depending on the diameter specified.
    diameter: Free value, in milimeters.
    length: Free value, in milimeters.
    usrclearance: (optional) If the screw fits too tight on the nut you can specify a positive correction value (try 0.1 for example).
    If the screw fits too loose in the nut you can specify a negative correction value (try -0.1 for example).

    Example:
    thread_for_nut(diameter=10, length=20);

MORE AVAILABLE FUNCTIONS (WITH ADDITIONAL PARAMETERS):

thread_for_screw_fullparm(diameter, length, pitch, divs=50);
    Generates a screw thread of the diameter indicated by the "diameter" parameter and of the length indicated by "length", with pitch indicated by "pitch", and a resolution indicated by "divs".
    This function allows you to specify a non-standard "pitch" value.
    diameter: Free value, in milimeters.
    length: Free value, in milimeters.
    pitch: Pitch value.
    divs: (optional) you can obtain more or less resolution with parm. Higher values for more resolution (and more rendering time). Default value is 50.

    Example:
    thread_for_screw_fullparm(diameter=10, length=30, pitch=2, divs=60);

thread_for_nut_fullparm(diameter, length, usrclearance=0, pitch, divs=50, entry=1);
    Generates a nut thread with additional parameters:
    diameter: Free value, in milimeters.
    length: Free value, in milimeters.
    usrclearance: (optional) If the screw fits too tight on the nut you can specify a positive correction value (try 0.1 for example).
    If the screw fits too loose in the nut you can specify a negative correction value (try -0.1 for example).
    pitch: Pitch value.
    divs: (optional) you can obtain more or less resolution with parm. Higher values for more resolution (and more rendering time). Default value is 50.
    entry: By default, the nut threads include a wider entrance area at the beginning and end to facilitate the introduction of the screw and minimize "elephant foot" problems.
    Specify 1 in entry to use these zones and 0 to not use them.

    Example:
    thread_for_nut_fullparm(diameter=10,length=20,usrclearance=0.1,pitch=1.5,divs=60, entry=1);
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
*/

/*
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
SOME NOTES:
- At first preview(F5) of the design may appear in console a lot of messages:
"PolySet has nonplanar faces. Attempting alternate construction"
simply ignore those messages, they are not a problem.
In versión 1.2 these messages no longer appear.

- I have no lag problems in preview(F5) mode during the test of this library. If you are suffering lag problems in preview you can try to un-comment the "render()" al lines 286 and 293.
  You can also try decreasing the value of the stddivs variable on line 169 (50 is the default value).

- This library uses by default PITCH values:
  DIAMETER    PITCH_VALUE
  3mm        0.5mm
  4mm        0.7mm
  5mm        0.8mm
  6mm        1.0mm
  8mm        1.25mm
 10mm        1.5mm
 ...
 24mm        3.0mm
 (complete list defined at get_std_pitch(diam))
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
*/

//EXAMPLE FOR CUSTOMIZER:
//1 to draw rod, 0 to not draw rod
drawrod=1;
//1 to draw nut, 0 to not draw nut
drawnut=1;
diameter=8;
lengthrod=15;
lengthnut=7;
//Example of USE, a rod SCREW:
if(drawrod==1)thread_for_screw(diameter=diameter, length=lengthrod);
//Example of USE, a FEMALE THREAD to be removed (with difference ()) from another figure:
if(drawnut==1)
translate([diameter,1.5*diameter,0]){
thread_for_nut(diameter=diameter, length=lengthnut);
}

//>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
stddivs=50;

module thread_for_screw(diameter, length)
{
stdpitch=get_std_pitch(diameter);
thread_for_screw_cuiso_tec(diameter,length,stdpitch,divdelta=stddivs);
//echo(diameter);echo(stdpitch);
}

module thread_for_nut(diameter, length, usrclearance=0)
{
stdpitch=get_std_pitch(diameter);
stdclearance=get_std_clearance(diameter);

thread_for_nut_cuiso_tec
(diameter+stdclearance+usrclearance,length,stdpitch,divdelta=stddivs,entry=1);

//echo(diameter);echo(stdpitch);echo(stdclearance+usrclearance);
}

//>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
module thread_for_screw_fullparm(diameter, length, pitch, divs=50)
{
if(divs<20) thread_for_screw_cuiso_tec(diameter,length,pitch,20);
    else if(divs>360) thread_for_screw_cuiso_tec(diameter,length,pitch,360);
        else thread_for_screw_cuiso_tec(diameter,length,pitch,divs);
}

module thread_for_nut_fullparm(diameter, length, usrclearance=0, pitch, divs=50, entry=1)
{
stdclearance=get_std_clearance(diameter);

if(divs<20)thread_for_nut_cuiso_tec
(diameter+stdclearance+usrclearance,length,pitch,20,entry=entry);
else
if(divs>360)thread_for_nut_cuiso_tec
(diameter+stdclearance+usrclearance,length,pitch,360,entry=entry);
else
thread_for_nut_cuiso_tec
(diameter+stdclearance+usrclearance,length,pitch,divs,entry=entry);
}

//>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
function get_std_pitch(diam) =
lookup(diam,[[3,0.5],[4,0.7],[5,0.8],[6,1.0],[8,1.25],[10,1.5],
[12,1.75],[14,2.0],[16,2.0],[18,2.5],[20,2.5],[22,2.5],[24,3.0]
]);

function get_std_clearance(diam) =
lookup(diam,[[3,0.4],[4,0.4],[5,0.5],[6,0.6],[8,0.6],[10,0.6],
[12,0.7],[14,0.7],[16,0.7],[18,0.7],[20,0.8],[22,0.8],[24,0.8]
]);
//>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
module thread_for_screw_cuiso_tec(diameter,lenght,pitch,divdelta){
delta=360/divdelta;
intersection(){
cubointter(long=lenght,pitch=pitch,diameter=diameter,divdeltacube=divdelta);
rosca(long=lenght,p=pitch,delta=delta,diameter=diameter);
}
//#cylinder(d=diameter,h=lenght,$fn=100);
}

module thread_for_nut_cuiso_tec(diameter,lenght,pitch,divdelta,entry){
delta=360/divdelta;
translate([0,0,-0.001])
intersection(){
rosca(long=lenght+0.002,p=pitch,delta=delta,diameter=diameter,nut=1);
cubointter_nut(lenght+0.002,pitch,diameter);
}
if(entry==1){translate([0,0,-0.001])cubointter_nut_entry(lenght+0.002,pitch,diameter,divdeltacube=divdelta);}
//#cylinder(d=diameter,h=lenght,$fn=100);
}

module cubointter(long,pitch,diameter,divdeltacube)
{
longcube=long-pitch;
translate([0,0,longcube/2+pitch/2])cube([diameter,diameter,longcube],center=true);
translate([0,0,longcube+pitch/2])
cylinder(d1=diameter,d2=diameter-2*pitch*0.866,h=pitch/2, $fn=divdeltacube);
cylinder(d2=diameter,d1=diameter-2*pitch*0.866,h=pitch/2, $fn=divdeltacube);
}

module cubointter_nut(long,pitch,diameter)
{
longcube=long;
translate([0,0,longcube/2])cube([diameter,diameter,longcube],center=true);
}

module cubointter_nut_entry(long,pitch,diameter,divdeltacube)
{
longcube=long-0.6;
translate([0,0,longcube])
cylinder(d2=diameter+0.4,d1=diameter,h=0.6, $fn=divdeltacube);
cylinder(d1=diameter+0.4,d2=diameter,h=0.6, $fn=divdeltacube);
}

module rosca(long,p,delta,diameter,nut=0)
{
vueltas=round(long/p+0.5)+1;
translate([0,0,-p/4])
for(v = [0 : 1 : vueltas-1])
translate([0,0,v*p])
vuelta(p=p,delta=delta,diameter=diameter,nut=nut);
}

module vuelta(p,delta,diameter,nut)
{
medio(p=p,delta=delta,diameter=diameter,nut=nut);

translate([0,0.001,0])
rotate([0,180,180])
medio(p=p,delta=delta,diameter=diameter,nut=nut);
}

module medio(p,delta,diameter,nut)
{
if(nut==1)
//render()
hull(){
for(k = [0 : delta : 180])
translate([0,0,k*p/360])rotate([0,0,k])pieza_nut(diameter=diameter, p=p);
translate([0,0,180*p/360])rotate([0,0,180])pieza_nut(diameter=diameter, p=p);
}
else
//render()
hull(){
for(k = [0 : delta : 180])
translate([0,0,k*p/360])rotate([0,0,k])pieza(diameter=diameter, p=p);
translate([0,0,180*p/360])rotate([0,0,180])pieza(diameter=diameter, p=p);
}
}

module pieza(diameter, p)
{
r=diameter/2;
h=p*0.866;
pp=p/2;
pm=-p/2;
hh=r-h;
g=0.001;

rotate([90,0,0])
linear_extrude(height = g, center = true, convexity = 10){
polygon([
    [0,pp],[hh,pp],[r-h/8,p/16],[r-h/8,-p/16],[hh,pm],[0,pm]
    ],
    [
    [0,1,2,3,4,5]
    ]);
}
}

module pieza_nut(diameter, p)
{
r=diameter/2;
h=p*0.866;
pp=p/2;
pm=-p/2;
hh=r-h;
g=0.001;

rotate([90,0,0])
linear_extrude(height = g, center = true, convexity = 10){
polygon([
    [0,pp],[hh,pp],[r,0],[hh,pm],[0,pm]
    ],
    [
    [0,1,2,3,4]
    ]);
}
}
```


[User]
I'd like to get an OpenSCAD design for a bracket that holds a phone and a portable DAC together, kind of like a sandwich. I've been using elastic bands, but I'm not a fan of them covering any of my phone screen.

The bracket should have two compartments - one for the phone and one for the DAC, stacked on top of each other with a small gap between them. It should be parametric so I can easily change the dimensions for different phones and DACs. I'll need parameters for the width, length, and thickness of both the phone and the DAC, as well as the bezel width for both devices which will control how far the enclosure wraps around each device. I want to also be able to specify the overall length of the bracket and the wall thickness of the enclosing structure.

It would be cool if the design was based on a difference between two boxes to make the enclosures, making sure to account for the bezel width. I'd like to keep the design simple and clean, using only basic cube operations.

Could you generate an OpenSCAD file for this design?

[Assistant]
dac_bracket.scad:
```
//Parametric Phone DAC Bracket

//by replayreb
//GPL License

//https://www.thingiverse.com/thing:3131593

//(25.4 mm = 1 inch)
overall_length = 25.4;
wall_thickness = 2;

phone_width = 81.5;
phone_thickness = 11.5;
phone_bezel_width = 3;

dac_width= 59.5;
dac_thickness = 12.8;
dac_bezel_width = 3;

//Make Phone bracket
difference(){
    cube([phone_width+wall_thickness*2,overall_length,phone_thickness+wall_thickness*2], center = true);

    cube([phone_width,overall_length,phone_thickness], center = true);

    translate([0, 0, wall_thickness/2])
    cube([phone_width-phone_bezel_width*2,overall_length,phone_thickness+wall_thickness], center = true);
}

//Make DAC bracket
translate([0, 0, -(phone_thickness/2+dac_thickness/2)-wall_thickness]){
    difference(){
        cube([dac_width+wall_thickness*2,overall_length,dac_thickness+wall_thickness*2], center = true);

        cube([dac_width,overall_length,dac_thickness], center = true);

    translate([0, 0, -wall_thickness/2])
    cube([dac_width-dac_bezel_width*2,overall_length,dac_thickness+wall_thickness], center = true);
    }
}
```


[User]
I'd like to create a customizable orchid pot with a matching saucer, similar to the design I found on Thingiverse. I need an OpenSCAD file (or files, if it makes sense to break it up) that allows me to adjust various dimensions.

Specifically, I need to control the following parameters for the pot:

*   **Pot Height:** The overall height of the pot.
*   **Pot Bottom Diameter:** The diameter of the base of the pot.
*   **Pot Bottom Height:** The height of the solid, flat bottom section of the pot.
*   **Pot Wall Width:** The thickness of the pot's walls.
*   **Pot Top Diameter Addon:**  How much larger the top of the pot should be compared to the bottom.
*   **Pot Side Decoration:** An option to select different side decorations (None, Squares, Curves, or Double Squares).
*   **Pot Bottom Holes Size:** The size of the drainage holes in the bottom of the pot.

And here are the parameters for the saucer:

*   **Saucer Height:** The overall height of the saucer.
*   **Saucer Bottom Diameter Addon:** How much larger the saucer's bottom diameter should be than the pot's bottom diameter.
*   **Saucer Bottom Height:**  The height of the flat bottom part of the saucer.
*   **Saucer Wall Width:** The thickness of the saucer's walls.
*  **Saucer Top Diameter Addon:** How much larger the top of the saucer should be than its bottom.
*   **Saucer to Pot Gap:** The vertical distance between the top of the saucer and the bottom of the pot when they are stacked.
*   **Saucer Pot Stands:** The number of standoffs or feet that the pot rests on inside the saucer.

Finally, I'd like a render option that lets me choose to render:
*   The pot and saucer assembled together,
*   Just the pot,
*   Just the saucer, or
*   The pot and saucer next to each other.

The pot should have a sloped wall, getting wider toward the top, and the saucer should be similarly sloped. The drainage holes should be patterned evenly in the bottom of the pot.  I don't need any specific libraries, unless you think it simplifies things.

[Assistant]
customizable-orchid-pot.scad:
```
/*
 * Customizable Orchid Pot + Saucer - https://www.thingiverse.com/thing:3132496
 * by ASP3D - https://www.thingiverse.com/asp3d/about
 * created 2018-10-02
 * version v1.0
 *
 * Changelog
 * --------------
 * v1.0 - 2018-09-23:
 *  - [new] Initial release
 * --------------
 *
 * This work is licensed under the Creative Commons - Attribution - Non-Commercial ShareAlike license.
 * https://creativecommons.org/licenses/by-nc-sa/3.0/
 */

/* [Pot params] */

// Height of the pot
pot_height = 100;
// Bottom diameter of the pot
pot_bottom_diameter = 90;
// Bottom height
pot_bottom = 3;
// Wall width
pot_wall = 2;
// Pot side decoration
pot_decoration = 3; // [0:None (Solid pot),1:Squares,2:Curves,3:Double squares]
// What to render
render = 1; // [1:Assembly,2:Pot,3:Saucer,4:All parts]

/* [Saucer params] */
// Saucer height
saucer_height = 20;
// Saucer diameter will be larger by this value
saucer_bottom_diameter_addon = 10;
// Bottom height
saucer_bottom = 3;
// Wall width
saucer_wall = 2;
// Height of pot over saucer
saucer_to_pot_gap = 5;

/* [Additional params] */
// Top of the pot will be larger than bottom by this value
pot_top_diameter_addon = 25;
// Width of pot bottom holes
pot_bottom_holes_size = 5;
// Top of the saucer will be larger than bottom by this value
saucer_top_diameter_addon = 10;
// Count of stands for pot
saucer_pot_stands = 5;

/* [Hidden] */

saucer_bottom_diameter = pot_bottom_diameter + saucer_bottom_diameter_addon;

saucer_bottom_radius = saucer_bottom_diameter/2;
saucer_top_radius_addon = saucer_top_diameter_addon/2;
saucer_stand_wall = saucer_wall*4;

pot_bottom_radius = pot_bottom_diameter/2;
pot_top_radius_addon = pot_top_diameter_addon/2;
pot_bottom_holes_r1 = pot_bottom_radius * 0.4;
pot_bottom_holes_r2 = pot_bottom_radius * 0.8;
pot_bottom_holes_count = floor((3.14*(pot_bottom_holes_r1*2) / pot_bottom_holes_size)*0.5);

if (render == 1) {
    saucer_3d();
    translate([0, 0, saucer_bottom + saucer_to_pot_gap])
        pot_3d();
} else if (render == 2) {
    saucer_3d();
} else if (render == 3) {
    pot_3d();
} else if (render == 4) {
    saucer_3d();
    translate([saucer_bottom_radius * 3, 0, 0])
        pot_3d();
}

module saucer_3d() {
    difference() {
        saucer_cut_outer_3d();
        saucer_cut_inner_3d();
    }
    difference() {
        intersection() {
            union() {
                for (i = [0:saucer_pot_stands-1]) {
                    rotate([0, 0, i*360/saucer_pot_stands])
                        saucer_stand_3d();
                }
            }
            saucer_cut_outer_3d();
        }
        k = pot_bottom_diameter/saucer_bottom_diameter * 1.02;
        translate([0, 0, saucer_bottom + saucer_to_pot_gap])
            scale([k, k, 1])
                saucer_cut_outer_3d();
        translate([0, 0, saucer_bottom])
            scale([0.5, 0.5, 1])
                saucer_cut_outer_3d();
    }
}

module saucer_stand_3d() {
    translate([0, -saucer_stand_wall/2, 0])
        linear_extrude(saucer_height)
            square([saucer_bottom_diameter + saucer_top_diameter_addon, saucer_stand_wall]);
}

module saucer_cut_outer_3d() {
    cylinder(h=saucer_height, r1 = saucer_bottom_radius, r2 = saucer_bottom_radius + saucer_top_radius_addon, $fa=1);
}

module saucer_cut_inner_3d() {
    translate([0, 0, pot_bottom])
        cylinder(h=saucer_height, r1 = saucer_bottom_radius - saucer_wall, r2 = saucer_bottom_radius + saucer_top_radius_addon - saucer_wall, $fa=1);
}

module pot_3d() {
    difference() {
        pot_base_3d();
        if (pot_decoration == 1) {
            pot_decor_1_3d();
        } else if (pot_decoration == 2) {
            pot_decor_2_3d();
        } else if (pot_decoration == 3) {
            pot_decor_3_3d();
        }
    }
}

module pot_decor_1_3d() {
    n = 10;
    h = (pot_height - saucer_height) * 0.5;
    for (i = [0:n-1]) {
        translate([0, 0, saucer_height])
            rotate([0, 0, i*360/n])
                rotate([45, 0, 0])
                    translate([0, -saucer_stand_wall/2, 0])
                        linear_extrude(h)
                            square([saucer_bottom_diameter + saucer_top_diameter_addon, 4]);
    }
}

module pot_decor_2_3d() {
    n = 10;
    h = (pot_height - saucer_height) * 0.90;
    for (i = [0:n-1]) {
        translate([0, 0, saucer_height])
            rotate([0, 0, i*360/n])
                rotate([-45, 0, 0])
                    translate([0, -saucer_stand_wall/2, 0])
                        linear_extrude(h)
                            square([saucer_bottom_diameter + saucer_top_diameter_addon, 4]);
    }
}

module pot_decor_3_3d() {
    n = 10;
    h = (pot_height - saucer_height) * 0.5;
    for (i = [0:n-1]) {
        translate([0, 0, saucer_height])
            rotate([0, 0, i*360/n])
                rotate([45, 0, 0])
                    translate([0, -saucer_stand_wall/2, 0])
                        linear_extrude(h)
                            square([saucer_bottom_diameter + saucer_top_diameter_addon, 4]);
        translate([0, 0, saucer_height + h*0.8])
            rotate([0, 0, (i+0.65)*360/n])
                rotate([-45, 0, 0])
                    translate([0, -saucer_stand_wall/2, 0])
                        linear_extrude(h)
                            square([saucer_bottom_diameter + saucer_top_diameter_addon, 4]);
    }
}

module pot_base_3d() {
    holes_r1 = pot_bottom_holes_r1;
    holes_r2 = pot_bottom_holes_r2;
    difference() {
        cylinder(h=pot_height, r1 = pot_bottom_radius, r2 = pot_bottom_radius + pot_top_radius_addon, $fa=1);
        translate([0, 0, pot_bottom])
            cylinder(h=pot_height, r1 = pot_bottom_radius - pot_wall, r2 = pot_bottom_radius + pot_top_radius_addon - pot_wall, $fa=1);
        for (i = [0:pot_bottom_holes_count-1]) {
            rotate([0, 0, i*360/pot_bottom_holes_count])
                translate([holes_r1, -pot_bottom_holes_size/2, -1])
                    linear_extrude(pot_bottom + 2)
                        union() {
                            square([holes_r2-holes_r1, pot_bottom_holes_size]);
                            translate([0, pot_bottom_holes_size/2, 0])
                                circle(pot_bottom_holes_size/2, $fn=30);
                            translate([holes_r2 - holes_r1, pot_bottom_holes_size/2, 0])
                                circle(pot_bottom_holes_size/2, $fn=30);
                        }
        }
    }
}

```


[User]
I'm looking to create a design that involves the intersection of three spheres, and I want to be able to control the size of the spheres and their positions parametrically.

Specifically, I want:

*   A design that uses three identical spheres.
*   The spheres should have a radius `r`.
*   One sphere should be centered at the origin.
*   Another sphere should be translated along the x-axis by a distance `d`.
*   The third sphere should be translated so that its center forms an equilateral triangle with the other two sphere centers in the xy-plane. I'd like this one to be calculated from `d` so that if the second sphere is at `d` along the x axis, this sphere is at `d/2` on the x axis and `-(d/2)*sqrt(3)` on the y axis.
*   The final output should be the intersection of these three spheres.

I would like to control `r` and `d` using customizer parameters.

Could you generate the OpenSCAD code for me? I don't need any special libraries or anything. Also, please use `$fn` for controlling sphere resolution, and use `center=true` so that I can just move the center instead of doing all the trigonometry myself.

[Assistant]
sphere_intersection.scad:
```
r = 25;
d = 20;
dh = d/2;
$fn = 100;

spheres();

module spheres() {
    intersection() {
        spA();
        spB();
        spC();
        }
    }

module spObject(){
    sphere(r, $fn, center=true);
    }

module spA() translate([d, 0, 0]) spObject();
module spB() translate([dh, -dh*1.732, 0]) spObject();
module spC() spObject();

echo(version=version());

```


[User]
I'm looking to design a parametric spoon holder for someone who has difficulty gripping utensils. The idea is to have a cylindrical grip, a wide, flat brim at the base for stability, and a rectangular slot on top to hold the spoon handle.

Here are the parameters I need to be able to control:

*   **Grip Radius:** The radius of the cylindrical grip. I'd like to be able to adjust how thick it is.
*   **Grip Length:** The length of the cylindrical grip, allowing for different hand sizes.
*   **Brim Radius:** The radius of the base brim. This needs to be wider than the grip to provide stability.
*   **Brim Thickness:** The thickness of the base brim.
*   **Spoon Slot Width:** The width of the rectangular slot for the spoon handle.
*   **Spoon Slot Thickness:** The thickness (height) of the slot. This may be smaller than the spoon handle's thickness since it is meant to be a slot.
*   **Spoon Slot Depth:** How deep the slot is cut into the top of the grip for the spoon.

I'd like a single OpenSCAD file that uses these parameters to create the design. I don't need any external libraries or special modules besides those built into OpenSCAD. Could you generate that for me?

[Assistant]
parametricSpoonHolder.scad:
```
// an assistive device from FabLab Shinagawa
// Parametric Spoon Holder

gR = 25; // Grip radial
gH = 90; // Grip length
bR = 60; // Brim radial
bH = 4; // Brim thickness
sX = 12; // Spoon width
sY = 3; // Spoon thickness
sZ = 24; // Spoon slot

// main geometry
difference() {
    union() {
        translate([0, 0, gH/2]) grip();
        translate([0, 0, bH/2]) brim();
        }
    translate([0, 0, sZ/2]) spoon();
    }

// translate([100, 0, sZ/2]) spoon();
module grip() cylinder(r=gR, h=gH, center=true);
module brim() cylinder(r=bR, h=bH, center=true);
module spoon() cube(size = [sX,sY,sZ], center=true);
```


[User]
I'm looking to create a curved connector piece in OpenSCAD, similar to the one I've seen. I need it to be parametric, so I can adjust various aspects of the design.

Specifically, I want to be able to control:

*   **Number of Fragments/Resolution:** I'd like to be able to specify the `$fn` value to control the smoothness of curves.
*   **Number of Curves:** I need a parameter to set the number of curve sections, and it should always be an even number.
*   **Curve Radius:** The radius of the main curve sections needs to be adjustable.
*   **Curve Thickness:** I need to specify the thickness of the curve sections.
*   **Top Curve Scale:** I need to be able to scale the top curve segment along the Y axis.
*   **Base Thickness/Rounding Radius:** A radius for rounding the base where the main object connects to a surface, or whatever it’s going to connect to.
*   **Base Width Angle:** I need an angle to define how far the base extends outward.
*   **Rotation:** I need to be able to choose whether or not the entire structure is rotated around the Z axis (rotated extrusion).

I want the design to feature:

*   A top curve section that's scaled vertically.
*   Alternating concave and convex curve sections, with a settable number of these.
*   A base curve that extends to meet the base plate.
*   A flat, rounded base for connecting the object to something else.

Could you generate an OpenSCAD file or files that do this? I'm not using any special libraries, so this should be basic OpenSCAD primitives.

[Assistant]
ConcaveConvex.scad:
```
////----ConcaveConvex.scad----
////----OpenSCAD 2015.03-2----
////----Kijja Chaovanakij----
////----2018.7.12----

/*[var]*/
//number of fragments[60=low:120=medium:180=high]
$fn=60;
//even number of curve[2]
curveN=2; //[0:2:8]
//curve radius[12]
curveR=12; //[8:1:20]
//curve thickness[1.2]
curveT=1.2; //[1.2:0.2:2.4]
//top curve scale[2]
curveSC=2; //[1.4:0.2:3.2]
//rounding radius of base thickness[2]
baseT=2; //[1.6:0.2:3.2]
//angle of base width[250]
baseW=250; //[240:5:265]
//type of rotation
rotateType=0; //[0:no,1:yes]

////----main----
color("LightGreen")
if (rotateType==1)
  rotate_extrude(angle=360,convexity=10)
  union(){
    topCurve();
    concaveCurve();
    convexCurve();
    baseCurve();
    base();
  }//u
else
  union(){
    topCurve();
    concaveCurve();
    convexCurve();
    baseCurve();
    base();
  }//u
//

module topCurve(){
  translate([0,curveN*2*curveR*sin(45)]){
    difference(){
      scale([1,curveSC])
        circle(curveR+curveT/2);
      scale([1,curveSC])
        circle(curveR-curveT/2);
      translate([-curveR-curveT,0])
        square([(curveR+curveT)*2,(curveR+curveT)*2*curveSC],true);
      translate([0,-(curveR+curveT)*curveSC])
        square([(curveR+curveT)*2,(curveR+curveT)*2*curveSC],true);
    }//d
    difference(){
      angles=[-45,0];
      points=[
        for (a=[angles[0]:1:angles[1]])
          [(curveR+curveT/2)*cos(a),(curveR+curveT/2)*sin(a)]];
      polygon(concat([[0,0]],points));
      circle(curveR-curveT/2);
    }//d
  }//t
}//m
//

module concaveCurve(){
  for (i=[1:2:curveN-1])
    translate([2*curveR*cos(45),i*2*curveR*sin(45)])
      difference(){
        angles=[135,225];
        points=[
          for(a=[angles[0]:1:angles[1]])
            [(curveR+curveT/2)*cos(a),(curveR+curveT/2)*sin(a)]];
        polygon(concat([[0,0]],points));
        circle(curveR-curveT/2);
    }
}//m
//

module convexCurve(){
  for (i=[0:2:curveN-1])
    translate([0,i*2*curveR*sin(45)])
      difference(){
        angles=[-45,45];
        points=[
          for (a=[angles[0]:1:angles[1]])
            [(curveR+curveT/2)*cos(a),(curveR+curveT/2)*sin(a)]];
        polygon(concat([[0,0]],points));
        circle(curveR-curveT/2);
      }//d
}//m
//

module baseCurve(){
  translate([2*curveR*cos(45),-2*curveR*sin(45)])
    difference(){
      angles=[135,baseW];
      points=[
        for(a=[angles[0]:1:angles[1]])
          [(curveR+curveT/2)*cos(a),(curveR+curveT/2)*sin(a)]];
      polygon(concat([[0,0]],points));
      circle(curveR-curveT/2);
    }//d
}//m
//

module base(){
  translate([2*curveR*cos(45)-(curveR-curveT/2+baseT)*cos(baseW-180),-2*curveR*sin(45)-(curveR-curveT/2+baseT)*sin(baseW-180)])
    circle(baseT);

  translate([curveR*cos(45)-(curveR-curveT/2+baseT)*cos(baseW-180)/2,-2*curveR*sin(45)-(curveR-curveT/2+baseT)*sin(baseW-180)])
    square([2*curveR*cos(45)-(curveR-curveT/2+baseT)*cos(baseW-180),baseT*2],true);
}//m
//
```


[User]
I'm looking to create a customizable clothes rail marker, similar to the one I already have but with a few key improvements and I want to make it entirely parametric so I can easily adjust things later. The current one is decent but a bit inflexible.

The basic idea is a rounded oblong tag that hangs on a standard clothes rail, with the size punched out so you can see the rail through the text. The key aspects are the overall shape of the marker, the rail slot, the text, and the ability to customize them.

Here's a breakdown of what I'd like it to do and what parameters I need:

*   **Shape:** The main body of the marker is an elongated oval. I'd like to define the length, width, and thickness of this oval. Maybe it would be good to have independent radius controls for the ends instead of a fixed ratio.
*   **Rail Slot:** There needs to be a slot for the clothes rail to pass through. The slot should be rectangular. I need to define the height, width, and position of this slot relative to the center of the tag.
*   **Text:** The size marker should be text that is punched out of the main body. I need to control the text string, the font, the font size, and the position of the text. I also want to control the extrude height, the depth of the cut, and the gap between the text and the inner edge of the tag.
*   **Material thickness**: The main body of the marker has a thickness, as does the cutout. It'd be good to control both.
*   **Fillets**: It'd be good to be able to set fillets for the edges of the marker.
*   **Units:** Please use millimeters.

Specifically, I'd like these to be parameters:

*   `marker_length` (float, length of the oval in mm)
*   `marker_width` (float, width of the oval in mm)
*    `marker_thickness` (float, thickness of the tag body)
*   `end_radius` (float, radius of the ends of the oval)
*   `rail_slot_width` (float, width of the rail slot in mm)
*   `rail_slot_height` (float, height of the rail slot in mm)
*   `rail_slot_offset_y` (float, vertical offset of the rail slot in mm)
*   `text_string` (string, the size to display)
*   `font_name` (string, font family to use)
*    `font_size` (float, the size of the font)
*   `text_offset_y` (float, vertical offset of the text in mm)
*    `text_extrude_height` (float, depth of the cutout)
* `cutout_thickness` (float, the thickness of the material making up the cutout)
*    `fillet_radius` (float, the radius of the fillets on the edges)

I don't need a two-color version right now, though that would be something I'd like to explore later, but can I ask for this to be a single .scad file that generates the marker? I'm aiming for something that's easy to modify, so I prefer clarity and good commenting over any highly optimized code. Please use standard OpenSCAD functions without external libraries if possible, but if you need to use external libraries, please use the BOSL2 library. I'd prefer not to use BOSL.

[Assistant]
clothes_rail_marker_V2_customizer.scad:
```
/*clothes size marker
sign for typical clothes rail
size punched out
20181003 P. de Graaff
*/
//size number
Text="40";

Fontsize=6;

TextPosition=19;

//Anpassung der Schriftgröße - adaption of the fontsize

difference(){
    resize(newsize=[40,60,2])cylinder(d=60,h=2,$fn=200);    //make oval outer cylinder
    resize(newsize=[20,35,2.2])cylinder(d=35,h=2.2,$fn=100);//make oval inner cylinder
    #translate([-2.5,-35,0])cube([5,30,5]);                 //gap for rail
    translate([0,TextPosition,-1])
    #color("Green")linear_extrude(height = 3,convexity=10)
    text(Text, size = Fontsize, font ="Arial",halign="center", $fn = 100);
}

```


[User]
I'd like to design a card organizer for board game boxes, and I'd like it to be customizable. I need a couple of things: first, a box with optional internal dividers, and second, the dividers themselves.

The box should have parameters for width, length, and height, and also for the thickness of the walls and the floor. I also want to be able to add a negative space in the floor of the box, as a rectangle, so I'll need parameters to control the width and length of that negative space as a percentage of the overall box dimensions.

The dividers should slot into the box, and I'd like to specify the thickness of the dividers, as well as how much space there is between each divider slot. Also, I want each divider to have a "tab" on one edge that fits into the box - I need to be able to control the size of that tab. Finally, I'd like to have the option for a "finger" cutout in each divider, to make it easier to grab cards. This cutout needs parameters for how wide and deep it should be (as a percentage of the divider's width and height respectively), and how curved the corners of the cutout should be.

I'd like to be able to generate just the box with divider slots, just a single divider, or the box with the dividers visualized within the box. The visualization is just for preview purposes and won't be printed. So I need to be able to switch between "Box" and "Divider" generation. When generating just the box with divider slots, I'd also like to be able to toggle whether the dividers should be visualized or not.

Could you generate the OpenSCAD code for this? I don't need any external libraries.

[Assistant]
Card_Organizer_v1.1.scad:
```
// ########### Parameters ###########
//Generate a box or a divider?
generate = "Box"; //[Box, Divider]

//Would you like to see the dividers inside your box? (does not generate dividers)
visualize_dividers = "Yes"; //[Yes, No]

/* [Box Dimensions] */
//In mm, how wide should the box be??
box_width = 97; //[1:200]

//In mm, how long should the box be??
box_length = 133; //[1:200]

//In mm, how tall should the box be??
box_height = 69; //[1:100]

// In mm, how thick should the box walls be?
thickness_of_walls = 1.5; //[1:0.1:5]

// In mm, how thick should the box walls be?
thickness_of_floor = 3; //[1:0.1:5]

/* [Floor Negative Space] */
//Create a negative space in the box floor?
negative_space = "Yes"; //[Yes, No]

//As a percentage of the floor width, how wide should the negative space be?
negative_width = 70; //[1:100]
n_width = (negative_width * 0.01) * box_width;

//As a percentage of the floor length, how long should the negative space be?
negative_length = 80; //[1:100]
n_length = (negative_length * 0.01) * box_length;

/* [Dividers] */
// In mm, how thick should the dividers be?
thickness_of_dividers = 1.5; //[0:0.1:5]

// In mm, how much space should be between dividers?
space_between_dividers = 13; //[1:50]

// In mm, how big should the tabs on the dividers be?
tab_size = 20; //[1:50]

//Create a finger cutout in dividers?
finger = "Yes"; //[Yes, No]

//As a percentage of divider width, how wide should the finger space be?
finger_width = 70; //[1:100]
f_width = (finger_width * 0.01) * box_width - thickness_of_walls * 2;

//As a percentage of divider height, how deep should the finger space be?
finger_depth = 80; //[1:100]
f_depth = (finger_depth * 0.01) * box_height - thickness_of_floor;

//How curved should the corners of the finger space be?
finger_curve = 5; //[0:25]

/* [Hidden] */
// Global resolution
$fs = 0.1;  // Don't generate smaller facets than 0.1 mm
$fa = 5;    // Don't generate larger angles than 5 degrees

// ########## Project Space #########
if (generate == "Box") {
	card_bpx(
		box_width,
		box_length,
		box_height,
		thickness_of_walls,
		thickness_of_floor,
		n_width,
		n_length,
		tab_size,
		thickness_of_dividers,
		space_between_dividers);

	if (visualize_dividers == "Yes") {
		%co_visual_dividers(
			thickness_of_walls,
			space_between_dividers,
			box_length,
			box_height);
	}
}
else {
	card_divider(
		box_width,
		thickness_of_dividers,
		box_height - thickness_of_floor,
		thickness_of_walls,
		tab_size,
		finger,
		f_width,
		f_depth,
		finger_curve);
}

// ############ Modules #############
module card_bpx (width, length, height, wall, tfloor, n_width, n_length, tab_size, tab_thickness, space) {
	w_offset = (box_width - n_width) / 2;
	l_offset = (box_length - n_length) / 2;

	difference() {
		co_shell(width, length, height, wall, tfloor);
		translate([w_offset, l_offset, 0]){
			co_stadium(n_width, n_length, thickness_of_floor, 1);
		}
		for (y = [wall + space: space: length - space]){
			translate([0, y, height - tab_size]){
				co_division_slots (width, tab_size, tab_thickness);
			}
		}
	}
}

module co_shell (width, depth, height, wall, tfloor) {
	w_offset = wall * 2;

	difference() {
		cube([width, depth, height]);
		translate([wall, wall, tfloor])
			cube([width - w_offset, depth - w_offset, height]);
	}
}

module co_stadium (width, length, height, bevel) {
	w = width / 2;

	translate([0, 0, -1]) {
		linear_extrude(height + 2, scale = bevel){
			translate([0, w, 0]) square([width, length - width]);
			translate([w, w, 0]) circle(d = width);
			translate([w, length - w, 0]) circle(d = width);
		}
	}
}

module co_division_slots (width, size, thickness){
	translate([-1, 0, 0]) {
		cube([width + 2, thickness, size + 1]);
	}
}

module card_divider (width, thickness, height, walls, size, finger, f_width, f_depth, radius) {
	difference() {
		union(){
			translate([walls, 0, 0]){
				cube([width - walls * 2, height, thickness]);
			}
			cube([width, size, thickness]);
		}
		if (finger == "Yes"){
			translate([width / 2, 0, 0]){
				co_finger(f_width, f_depth, radius, thickness);
			}
		}
	}
}

module co_finger(size, depth, radius, height) {
	half = size / 2 + radius;
	r_offset = radius * 2;

	translate([-r_offset - half, 0, -1]) linear_extrude(height + 2) difference() {
		translate([r_offset, -1, 0]) square([size + r_offset, depth * 1.5]);

		translate([radius, radius, 0]) offset(r = radius) difference() {
			square([size + (r_offset * 2), depth * 1.5]);
			translate([half + radius, depth - half, 0]) circle(d = size + r_offset);
			translate([radius, 0, 0]) square([size + r_offset, depth - half]);
		}
	}
}

module co_visual_dividers (wall, space, length, height){
	for (y = [wall + space: space: length - space]){
		translate([0, y, height]){
			rotate([-90, 0, 0]){
				card_divider(
					box_width,
					thickness_of_dividers,
					box_height - thickness_of_floor,
					thickness_of_walls,
					tab_size,
					finger,
					f_width,
					f_depth,
					finger_curve);
			}
		}
	}
}
```


[User]
Hey there! I'm looking to create a customizable storage container, specifically for things like plastic bags. I've got a basic idea, but I need some help putting it into a parametric OpenSCAD design.

Here's what I'm envisioning:

*   **Overall Structure:** The container will be a rectangular box, made up of separate pieces that snap together. I'd like the design to be parametric, so I can easily change the overall dimensions. I want the container to have at least three compartments.
*   **Parametric Dimensions:** I need to be able to set the inner width (x), inner length (y), and inner height (z) of the container. I also need to define the thickness of the material, which will be a uniform value across all parts, and the rod thickness (for joining parts).
*   **Individual Parts:** The container will be made from the following parts:
    *   **Front/Rear Panels:** These will be identical, with a main rectangle and two smaller rectangles at each side of the main rectangle, and a rectangle on top of the main rectangle. They'll have some diagonal supports.
    *   **Side Panels:** Similar to the front/rear but rotated. They'll also have additional small cube-like extrusions for insertion into the bottom and top.
    *   **Bottom Panel:** A simple flat base with connecting rods along the sides.
    *   **Separators:** These are similar to the front/rear panels, but they have extrusions at either side so that they stay in place.
    *   **Feet:** Small circular feet with two slots that fit into the panels.
    *   **Clips:** Small U-shaped clips to secure the whole frame together from the top.

*   **Snap Fit:** All the parts should connect using a snap-fit system. I need to include parameters for backlash/tolerance to adjust the tightness of the fit. This needs to be a universal setting.
*   **Materials:** I'm not really concerned about the material itself for this project, but I just need to keep it parametric for wall thickness.

I'd like the design to be easily customizable, so using modular functions in OpenSCAD would be ideal. It'd be great to have a simple way to choose which parts to render, for testing or printing just one thing at a time.

Do you think you could whip up a parametric OpenSCAD file (or a few) for me? I don't have any preference on using a certain library. Thank you!

[Assistant]
Tueten-Lager.scad:
```
// -----------------------------------------------------
// Tueten-Lager
//
//  Detlev Ahlgrimm, 10.2018
// -----------------------------------------------------

// inner width
xi=135;     // [20:200]

// inner length
yi=150;     // [20:200]

// inner height
zi=100;     // [20:150]

// rod x/y
rt=3;       // [1:5]

// backlash
spiel=0.25; // [0.1:0.05:1]

// what to render
part=0;     // [0:all together, 1:front/rear, 2:side, 3:bottom, 4:separator, 5:foot, 6:clip]

/* [Hidden] */
$fn=100;

// -----------------------------------------------------
//  Seite/Wand (vorne/hinten)
// -----------------------------------------------------
module Seite_vh(v, mq=true) {
  translate([0, -v.y/2, 0])
  union() {
    cube([v.x, v.y, v.y]);                              // unten
    cube([v.y, v.y, v.z]);                              // links
    translate([v.x-v.y, 0, 0]) cube([v.y, v.y, v.z]);   // rechts
    translate([0, 0, v.z-v.y]) cube([v.x, v.y, v.y]);   // oben

    if(mq) {
      translate([0, 0, v.z/2-v.y/2]) cube([v.x, v.y, v.y]);   // mitte z
      k=sqrt((v.z-v.y)/2*(v.z-2*v.y)/2 + (v.x/8*3)*(v.x/8*3));
      a=atan((v.x/8*3) / ((v.z-v.y)/2) );
      translate([v.x/8*2, 0,     v.y/2]) rotate([0,     a, 0]) translate([-v.y/2, 0, 0]) cube([v.y, v.y, k]);
      translate([v.x/8*2, 0, v.z-v.y/2]) rotate([0, 180-a, 0]) translate([-v.y/2, 0, 0]) cube([v.y, v.y, k]);
      translate([v.x/8*6, 0,     v.y/2]) rotate([0,    -a, 0]) translate([-v.y/2, 0, 0]) cube([v.y, v.y, k]);
      translate([v.x/8*6, 0, v.z-v.y/2]) rotate([0, 180+a, 0]) translate([-v.y/2, 0, 0]) cube([v.y, v.y, k]);
    }
  }
}

// -----------------------------------------------------
//  Seite/Wand (links/rechts)
// -----------------------------------------------------
module Seite_lr(v, mq=true) {
  rotate([0, 0, 90]) union() {
    Seite_vh([v.y, v.x, v.z], mq);
    for(y=[v.y/3, v.y/3*2]) {
      for(z=[v.z/2+v.x/2, v.z]) {
        translate([y-v.x*1.5-spiel, -v.x/2, z]) cube([v.x, v.x, v.x]);
        translate([y+v.x*0.5+spiel, -v.x/2, z]) cube([v.x, v.x, v.x]);
      }
    }
  }
}

// -----------------------------------------------------
//  Boden
// -----------------------------------------------------
module Boden(v) {
  rotate([-90, 0, 0]) Seite_vh([v.x, v.z, v.y], mq=false);
  for(l=[1:3]) {
    translate([v.x/4*l-v.z/2, 0, -v.z/2]) cube([v.z, v.y, v.z]);
  }
}

// -----------------------------------------------------
//  Trenn-Element
// -----------------------------------------------------
module Trenner(v) {
  Seite_vh([v.x, v.y, v.z]);
  translate([-2*v.y-2*spiel, -v.y/2+2*spiel,       0]) cube([4*v.y+v.x+4*spiel, v.y-2*spiel, v.y]);
  translate([-2*v.y-2*spiel, -v.y/2+2*spiel, v.z-v.y]) cube([4*v.y+v.x+4*spiel, v.y-2*spiel, v.y]);
  for(z=[-v.y, v.z-2*v.y]) {
    translate([ -2*v.y-2*spiel, -v.y/2+2*spiel, z]) cube([v.y, v.y-2*spiel, 2*v.y]);
    translate([v.x+v.y+2*spiel, -v.y/2+2*spiel, z]) cube([v.y, v.y-2*spiel, 2*v.y]);
  }
}

// -----------------------------------------------------
//  Fuss (bzw. Dreier-Klemme)
// -----------------------------------------------------
module Fuss(wt) {
  difference() {
    cylinder(r=3*wt+2*spiel, h=wt+2+spiel);
    translate([0, 0, 1]) cylinder(r=2, h=2*wt);
    translate([-2*wt-spiel, -2*wt-spiel, 1]) cube([6*wt, 2*wt+3*spiel, 2*wt]);
    translate([-2*wt-spiel, -2*wt-spiel, 1]) cube([2*wt+3*spiel, 6*wt, 2*wt]);
  }
  translate([  wt, -2*wt-spiel, wt+1.5+spiel]) rotate([0, 90, 0]) cylinder(d=1, h=wt/2);
  translate([2*wt,     2*spiel, wt+1.5+spiel]) rotate([0, 90, 0]) cylinder(d=1, h=wt/2);

  translate([    2*spiel, 2*wt, wt+1.5+spiel]) rotate([90, 0, 0]) cylinder(d=1, h=wt/2);
  translate([-2*wt-spiel,   wt, wt+1.5+spiel]) rotate([90, 0, 0]) cylinder(d=1, h=wt/2);
}

// -----------------------------------------------------
//  Klemme
// -----------------------------------------------------
module Klemme(wt) {
  difference() {
    translate([wt/2, wt/2, 0]) cylinder(r=2*wt, h=2*wt+1);
    translate([wt/2, wt/2, 1]) cylinder(r=wt,   h=2*wt+1);
    translate([-wt/2-spiel, -wt/2-spiel, 1]) cube([      4*wt, wt+2*spiel, 2*wt+1]);
    translate([-wt/2-spiel, -wt/2-spiel, 1]) cube([wt+2*spiel,       4*wt, 2*wt+1]);
  }
  translate([    wt*1.7, wt/2+spiel, wt+1.5+spiel]) rotate([  0, 90, 0]) cylinder(d=1, h=wt/2);
  translate([wt/2+spiel,     wt*1.7, wt+1.5+spiel]) rotate([-90,  0, 0]) cylinder(d=1, h=wt/2);
}

if(part==0) {
  translate([    -rt,   -rt/2,    0]) Seite_vh([xi+2*rt, rt, zi+2*rt]);     // vorne
  translate([  -rt/2,       0,    0]) Seite_lr([     rt, yi, zi+2*rt]);     // links
  translate([xi+rt/2,       0,    0]) Seite_lr([     rt, yi, zi+2*rt]);     // rechts
  translate([    -rt, yi+rt/2,    0]) Seite_vh([xi+2*rt, rt, zi+2*rt]);     // hinten
  translate([  spiel,   spiel, rt/2]) Boden([xi-2*spiel, yi-2*spiel, rt]);  // unten

  translate([0,   yi/3, zi+2*rt-zi/2-rt/2]) Trenner([xi, rt, zi/2+1.5*rt]);
  translate([0, yi/3*2, zi+2*rt-zi/2-rt/2]) Trenner([xi, rt, zi/2+1.5*rt]);

  translate([   rt,    rt, -1])                     Fuss(rt);
  translate([xi-rt,    rt, -1]) rotate([0, 0,  90]) Fuss(rt);
  translate([   rt, yi-rt, -1]) rotate([0, 0, 270]) Fuss(rt);
  translate([xi-rt, yi-rt, -1]) rotate([0, 0, 180]) Fuss(rt);

  translate([  -rt/2,   -rt/2, zi+2*rt+1]) rotate([180, 0,  90]) Klemme(rt);
  translate([xi+rt/2,   -rt/2, zi+2*rt+1]) rotate([180, 0, 180]) Klemme(rt);
  translate([  -rt/2, yi+rt/2, zi+2*rt+1]) rotate([180, 0,   0]) Klemme(rt);
  translate([xi+rt/2, yi+rt/2, zi+2*rt+1]) rotate([180, 0, 270]) Klemme(rt);
} else if(part==1) {
  translate([0, 0, rt/2]) rotate([-90, 0, 0]) Seite_vh([xi+2*rt, rt, zi+2*rt]);
} else if(part==2) {
  translate([0, 0, rt/2]) rotate([0, 90, 0]) Seite_lr([rt, yi, zi+2*rt]);
} else if(part==3) {
  translate([0, 0, rt/2]) Boden([xi-2*spiel, yi-2*spiel, rt]);
} else if(part==4) {
  translate([0, 0, rt/2]) rotate([-90, 0, 0]) Trenner([xi, rt, zi/2+1.5*rt]);
} else if(part==5) {
  Fuss(rt);
} else if(part==6) {
  Klemme(rt);
}

```


[User]
Hey, I'm looking for a custom coffee mug handle design, and I have a specific idea in mind. I want it to be parametric, so I can easily adjust the size later.

Basically, the handle should have a cylindrical grip area that transitions smoothly into a rectangular bar that extends from the side of the mug. I want to use the `hull()` function to blend the different parts seamlessly.

Here are the details:
*   The cylindrical grip should be centered around the y and z axis, and should extend along the x axis. It should have a diameter, d1, and a height, h.
*   The rectangular bar should be oriented along the z axis, and should extend from the side of the grip along the x axis. The bar should be centered around the y axis, but not necessarily the z axis; it should be offset on the z axis by an amount proportional to d2. The length of the bar should be proportional to h.
*   The rectangular bar should be slightly thinner than the diameter of the grip; call this dimension d2.
*   I want to create a hole in the combined geometry where the mug can be placed; the hole should be cylindrical, centered on the y and z axes, and extend along the x axis, with a diameter of d2 and a length greater than the length of the combined geometry.
*  Finally, I want to cut a large rectangular hole through the entire piece (including the cylindrical hole) that extends in the y and z directions to provide space for the mug body; this cut should be centered on the y axis, but it should be offset on the z axis by an amount proportional to h.

I'd like to have parameters for the height `h`, the grip diameter `d1`, and the bar thickness `d2`. I'd like `d2` to be defined in terms of `d1` -- specifically, `d2 = d1 - 5`.

Could you generate an OpenSCAD file or files for this? I don't need any custom libraries, just the standard functionality. I'm happy to provide more details if you need it.

[Assistant]
tervis_tumblr_handle_v2.scad:
```
$fn=100;

h=30;
d1=73;
d2=d1-5;

module grip(){hull(){translate([d1,0,0])cube([h+5,h,(h-10)/2],center=true);cylinder(h,d1,d1,center=true);}}
module handle(){translate([h+d2,0,-(d2-5)/2])cube([h/2,h,d1],center=true);}
module combined(){hull(){grip();handle();}}
module holder(){difference(){combined();cylinder(100*h,d2,d2,center=true);}}
difference(){holder();translate([d1/1.5,0,-1.75*h])cube([2*h,2.5*d1,2*h],center=true);}
```


[User]
Hi, I'm looking to design a customizable holder, similar to the one I've already designed, but I'd like the design to be more modular with independent files for specific features like the mount and the main body. I'd like to leverage the `MCAD/boxes.scad` library, which I'm already using for a rounded box feature, but I would like to keep the model as modular as possible.

The overall idea is a box-like holder with rounded corners and a chamfered top lip. Here are the specific features I'm aiming for:

1.  **Parametric Dimensions**:
    *   `MaxInsideDimension`: This controls the largest interior dimension of the box, both the width and depth are set from this parameter, and its height is defined as `MaxInsideDimension * 0.33`. It should be a slider from 60 to 120.
    *   `WallThickness`: Controls the thickness of the outer walls, adjustable using a dropdown of [2, 3, 4, 5]
    *   `HasBottom`: A toggle to include a bottom on the holder, specified as a dropdown: ["yes", "no"]
    *   `HoleSize`: If `HasBottom` is "yes", this should be a percentage that determines the size of a hole in the bottom of the holder. This is adjustable via a slider from 0, 33, and 66.
2.  **Mounting Holes:** The holder needs to include mounting holes on two sides of the box. Here are the parameters needed:
    *   `ScrewHeadDiameter`: A slider from 2 to 10 in increments of 0.5 (e.g. 2, 2.5, 3, ..., 10).
    *   `ScrewShankDiameter`: A slider from 2 to 6 in increments of 0.5 (e.g. 2, 2.5, 3, ..., 6).
    *   The mounting holes should have a counterbore for a flat head screw, with a depth equal to `MountThickness = max((.5 * ScrewHeadDiameter), WallThickness) + 2`.
3.  **Chamfered Top Lip:** The top edge of the holder should have a chamfered edge for aesthetic purposes.
4.  **Rounded Corners:** The exterior box should have rounded corners. The corner radius should be set to `2` but can be a constant instead of a parameter.

I'm hoping to keep things pretty modular this time, so I'd prefer that the code be broken down into reusable modules. Specifically, I'd like separate modules for:

*   `mounting_hole()`: Creates the mounting hole geometry. This can be used on all mount points.
*   `holder_body()`: Creates the main body of the holder with rounded corners, chamfered top, and the inner cutout.
*   A main file that pulls these pieces together.

I would expect the main module would call both `mounting_hole()` and `holder_body()`.

Can you design this for me? I think it would help me understand how to build designs more cleanly if I have it broken into more modules.

[Assistant]
Holder.scad:
```
// What is the greatest inside dimension?
MaxInsideDimension = 85; // [60:120]

// How thick should the outer walls be?
WallThickness = 3; // [2,3,4,5]

// Does the box have a bottom?
HasBottom = "yes"; // [yes,no]

// Bottom hole size (as percentage)
HoleSize = 66; // [0,33,66]

// Define the mounting hardware
// To eliminate the chamfer set Head Diameter <= Shank Diameter
ScrewHeadDiameter = 8.5; // [2,2.5,3,3.5,4,4.5,5,5.5,6,6.5,7,7.5,8,8.5,9,9.5,10]
ScrewShankDiameter = 5; // [2,2.5,3,3.5,4,4.5,5,5.5,6]

/* [Hidden] */

// Global curve smoothing
$fn = 120;

// library https://github.com/SolidCode/MCAD
include <MCAD/boxes.scad>

// Calc the minimum mounting support thickness
// add 1mm recess for 90deg screw head chamfer
// add 1mm minimum shank depth
MountThickness = max((.5 * ScrewHeadDiameter), WallThickness) + 2;

/*
    Module to create a mounting hole object
*/
module createMountingHole(){

  // create the recessed chamfer
  translate([0, 0, 1])
  cylinder(
    h = MountThickness,
    d1 = ScrewHeadDiameter,
    d2 = 0,
    center = true
  );

  // create the recess
  translate([0, 0, -.5 * (MountThickness - 1)])
  cylinder(
    h = 1.001,
    d = ScrewHeadDiameter,
    center = true
  );

  // create the shank bore
  cylinder(
    h = MountThickness + .001,
    d = ScrewShankDiameter,
    center = true
  );
}

/*
    Module to create the ring object
*/
module createHolder(){
  difference(){

    // Calc box dimensions
    innerX = MaxInsideDimension;
    innerY = innerX; // depth = width
    innerZ = innerX * .33; // height = 1/3 width

    inner = [ // Set inner box dimensions
      innerX,
      innerY,
      HasBottom == "yes" ? innerZ : innerZ + (2 * WallThickness)
    ];

    outer = [ // Set outer box dimensions
      innerX + (2 * WallThickness),
      innerY + WallThickness + MountThickness,
      innerZ + WallThickness
    ];

    // Set outer wall corner radius
    cornerRadius = 2;

    // make the outer box
    translate([
      0,
      .5 * (MountThickness - WallThickness),
      0
    ])
    roundedBox(
      size = outer,
      radius = cornerRadius,
      sidesonly = true
    );

    // remove the inner box
    translate([
      0,
      0,
      .5 * WallThickness + .001
    ])
    roundedBox(
      size = inner,
      radius = cornerRadius,
      sidesonly = true
    );

    // Chamfer the upper lip
    translate([
      0,
      0,
      2 * (innerZ + WallThickness)
    ]){
      polyX = innerX + (2 * WallThickness);
      rotate([180, 0, 0])
      difference(){
        polyhedron(
          points=[
            // the four base points
            [polyX, polyX, 0],
            [polyX, -polyX - MountThickness, 0],
            [-polyX, -polyX - MountThickness, 0],
            [-polyX, polyX, 0],
            // the apex point
            [0,0,polyX]
          ],
          faces=[
            // each triangle side
            [0,1,4],[1,2,4],[2,3,4],[3,0,4],
            // two triangles for square base
            [1,0,3],[2,1,3]
          ]
        );
          cube([
            innerX/2,
            innerY/2,
            10*innerZ], // oversize the cutout
            center = true
          );
      }
    }

    // create the mounting holes
    translate([
      -.25 * innerX,
      .5 * (innerY + MountThickness),
      .25 * (innerZ / 2)
    ]){
      rotate([-90, 0, 0])
      createMountingHole();
    }
    translate([
      .25 * innerX,
      .5 * (innerY + MountThickness),
      .25 * (innerZ / 2)
    ]){
      rotate([-90, 0, 0])
      createMountingHole();
    }

    // remove material from bottom
    cylinder(
      2 * innerZ, // oversize the height
      d = innerX * (HoleSize / 100), // remove % of bottom
      center = true
    );

  }
}

/*
    Make it.
*/
createHolder();

```


[User]
Hey, I'm looking to create some custom O-rings for a project and I'd like to use OpenSCAD to make the design parametric. I've got a basic idea of what I need, but I'd like you to help me create a more robust version.

Here’s what I’m thinking:

I want to be able to specify the Outer Diameter (OD), the Inner Diameter (ID), and the Height (or thickness) of the O-ring. I need it to be a simple torus shape, and it needs to generate a single part. I'd like to be able to adjust the resolution of the circle as well, so it isn't too polygon-y. Can we add a variable for that?

I also think it'd be useful to have the option of creating a cross-section profile that isn’t a perfect circle – maybe an ellipse, or even something like a rectangle with rounded corners. Would it be possible to let me specify a profile shape and parameters for that?

Finally, it would be great if I could select the units (mm, inches, etc.), and have the code handle those conversions automatically. I am more comfortable working in inches, so making that the default would be best for me.

So, to recap, here's what I need:

*   **O-ring Generator:** A single SCAD file.
*   **Parameters:** OD, ID, Height (all in units chosen by user, default inches), resolution (for circle), profile (circle, ellipse, rounded rectangle) and its parameters (e.g. radius or width/height).
*   **Units:** Allow user to choose units (mm or inches), default inches.
*   **Simple Torus:** The O-ring should just be a simple torus or a modified torus based on the requested profile.
*   **Libraries:** Not using any specific libraries, but if you think one might be needed, please specify.

Can you help me generate this? I think it would be very useful to have something like this.

[Assistant]
O-ring_Generator.scad:
```
//3D printable O-ring Customizer Project MY4777
//Aubrey Woern 10-3-2018

OD = 10; //Outer Diameter in mm

ID = 9	; // Inner Diameter in mm

Height = 0.5; // Height of O-ring in mm

$fn=50;

difference(){ cylinder (d=OD,h=Height); //ring OD

					cylinder(d=ID,h=Height+20,center=true);
}

```


[User]
Hi! I'd like to create a reward system using OpenSCAD, something like a token box. It should have a vertical tube to hold tokens, and a larger box next to it to serve as a token pool.

Here are the parameters I'm thinking of, and I'd like to be able to adjust all of these:

**Token/Coin Dimensions:**
*   `Coin_Diameter`:  Diameter of the tokens or coins to be used. I'd like to be able to choose between a few predefined options (like diameters for Swiss Francs, Euros, or US Quarters), or set my own custom diameter.
*  `Coin_Thickness`:  Thickness of the tokens. Same here: would love to select from predefined options, or specify a custom thickness.

**Tube Parameters:**
*   `N_coins`:  Number of tokens that the tube will hold before being "full".
*   `Extra`: A bit of extra space to add around each token inside the tube, this'll eat into the wall thickness.
*  `Multiple`: Option to have more than one tube.
*   `Pool_Height`: Height of the token pool as a multiplier of the tube height.

**Box and Wall Parameters:**
*   `Wall_Thickness`:  Thickness of the walls of the tube and pool.
*   `Corner_Radius`:  Radius of the rounded corners.
*   `Floor_Height`: Thickness of the base platform on which the entire structure sits.
*   `Floor_Size_Multiplier`:  How much larger the floor is than the width of the tube, a multiplier.
*   `Gap`:  Width of the gap in the wall of the tubes.
*   `Gap_Pool`: Gap width in the pool box.

**Text parameters:**
*   `Side_R_Text`: Text on the right side of the pool.
*  `Side_R_Text_Height`: Height of text on the right side of the pool.
*   `Side_Text_R_Font_Size`: Font size for text on the right side of the pool.
*   `Side_Text`:  Text on the side of the tube.
*   `Side_Text_Height`:  Height of the text on the side of the tube.
*   `Side_Text_Font_Size`:  Font size for the text on the side of the tube.
*   `Text`:  Text on the front of the base platform (aligned left next to tube).
*   `Text2`: Second line of text on the front of the base platform.
*   `Text_Font_Size`: Font size for the text on the base platform.

I'd like the design to use `linear_extrude`, `difference`, `translate`, `rotate`, `text`, and `rounded_square` operations. Also, can you include a way to visually indicate every 5 and 10 tokens in the tube with some sort of mark (maybe a small cube)? I’m not particularly concerned with the aesthetics of the markings, it just needs to be functional.

I believe the `rounded_square` code is taken from somewhere online, and I'm not sure what its license is, so perhaps you could implement that from scratch.

Could you generate an OpenSCAD file (or multiple if necessary) that implements this?

[Assistant]
tube-token-box3.scad:
```
/*
Made by
 Daniel K. Schneider, TECFA, University of Geneva,
 Elsa C.L. Schneider, Haute Ecole d'Art et de Design (HEAD), Geneva
 Kalli Benetos, TECFA, University of Geneva
 Jan 2017.

Use the rewarder module to create reward tubes. The typical use case is the following: You need some extrinsic motivation to get tasks done. For each hour spent or each task done, award yourself with a token. Once the tube to the left is full you can give yourself a reward, e.g buy something that you would not buy otherwise, a weekend in some nice place, etc. The larger box serves as a token pool.

The devices includes a "tube" that you can fill with coins or tokens of various thickness and color. Coins can be cashed in directly, tokens allow for more differentiated strategies. See file tube-tokens-2.scad. It is up to the user to decide what tokens represent. We suggest creating these tokens with a laser cutter. Otherwise you can print them.

Motivational design parameters you can decide upon: Coin type, amount of coins, lettering in three places, instructions to the user (or s/he decide by themselves). Other parameters define wall size, floor size (and indirectly the pool size), multiple columns, front/back gap, corner radius, etc.

For the calibration of width and height we use coins as "standard" since people got a good feel for them. For example, if you define the height as 50 x 2EUR you we will 100 Euros once it is full,but you can decide on anything else.

Below are examples that you could uncomment.

Credits for code that we reused:

fit_outside_tube: by Winder, published Dec 22, 2013
http://blog.willwinder.com/2013/12/openscad-linear-extrude-that.html
https://www.thingiverse.com/thing:209964/#files

License: http://www.gnu.org/licenses/gpl-2.0.html

Rounded square: By felipesanches
https://github.com/Metamaquina/Metamaquina2Beta/blob/master/rounded_square.scad

Coin dimensions according to Wikipedia
- https://en.wikipedia.org/wiki/Swiss_franc
- https://en.wikipedia.org/wiki/Euro_coins
- https://en.wikipedia.org/wiki/Coins_of_the_United_States_dollar

Tip for customizer users:
- only use ascii characters in the file
- https://customizer.makerbot.com/docs
- Probably, the thing must be published
*/

/* [Resolution, fragments per circle] */
$fn=20;

/* [Tube Size] */
Coin_Diameter = 27.40; // [31.45:CHF_5, 27.40:CHF_2, 25.75:EUR_2, 23.25:EUR_1, 24.257:US_quarter]
Coin_Thickness = 2.15; // [2.35:CHF_5, 2.15:CHF_2, 2.20:EUR_2, 2.33:EUR_1, 1.75:US_quarter]
// N coins defining the height of the tube(s)
N_coins=30;
// extra space added to each coins; will eat into wall thickness
Extra=0.6;
// Size of floor with respect to tube
Floor_Size_Multiplier=2; // [1:5]
// One or more tubes
Multiple=1; // [1:5]
// height of pool with respect to tube
Pool_Height=0.7; //

/* [Walls and gaps] */
// Wall thickness
Wall_Thickness=5;
// Rounding of tube corners
Corner_Radius=4;
// height of base platform
Floor_Height=4;
// gap width in tubes
Gap=6;
// gap width in pool
Gap_Pool=6;

/* [Text decorations] */
Side_R_Text="TOKENS";
Side_R_Text_Height=1;
Side_Text_R_Font_Size=5;
Side_Text="FEED ME";
Side_Text_Height=2;
Side_Text_Font_Size=6;
Text="REWARD";
Text2="BOX";
Text_Font_Size=5;

/* [Hidden] */
coin_selected = [Coin_Diameter, Coin_Thickness];

// Constants you can use in function calls
// largest swiss coin, used a lot
CHF_5  = [31.45, 2.35];
// large swiss coin
CHF_2  = [27.40, 2.15];
// popular, but a bit small
US_quarter = [24.257, 1.75];
// limited use
US_05 = [30.60,2.15];
// limited use
US_1  = [26.50, 2.0];
// old large US$, still legal but obsolete
US_1o = [38.1,2.58];
// largest € coin, used a lot
EUR_2  = [25.75, 2.20];
// most popular € coin, but a bit small
EUR_1  = [23.25, 2.33];

// ----------------- Examples of use.

// rewarder ();

rewarder (
	  coin=coin_selected,
	  corner_radius = Corner_Radius,
	  extra = Extra,
	  floor_height = Floor_Height,
	  floor_size_multiplier = Floor_Size_Multiplier,
	  gap = Gap,
	  gap_pool = Gap_Pool,
	  multiple = Multiple,
	  n_coins = N_coins,
	  pool_height = Pool_Height,
	  side_r_text = Side_R_Text,
	  side_r_text_height = Side_R_Text_Height,
	  side_text_r_font_size = Side_Text_R_Font_Size,
	  side_text = Side_Text,
	  side_text_height = Side_Text_Height,
	  side_text_font_size = Side_Text_Font_Size,
	  text2 = Text2,
	  text = Text,
	  text_font_size = Text_Font_Size,
	  wall_thickness = Wall_Thickness
);

// rewarder (coin=CHF_5, corner_radius=4, extra=0.5, floor_height=4, floor_size_multiplier=2, gap=6, multiple=1, n_coins=35, pool_height=0.7, side_r_text="TASK ITEMS", side_r_text_height=1, side_text_r_font_size=6, side_text="FEED ME!", side_text_height=2.5, side_text_font_size=10, text2="BOX", text="REWARD", text_font_size=5, wall_thickness=4);

// rewarder (coin=EUR_2, corner_radius=4, extra=0.5, floor_height=4, floor_size_multiplier=2, gap=6, multiple=2, n_coins=45, pool_height=0.75, side_r_text="TASK TOKENS", side_r_text_height=1, side_text="TRACK WISELY", side_text_height=2, side_text_font_size=9, side_text_r_font_size=7, text="REWARD BOX", text2="I DESERVE IT", text_font_size=5, wall_thickness=4);

// rewarder (coin=CHF_5, n_coins=33);

// ---------- Main module

module rewarder (
    coin=EUR_2, // coin size
    n_coins=30, // N coins defining the height of the tube(s)
    corner_radius=4,
    extra=0.6, // extra space added to each coins, will eat into wall thickness
    floor_height=4, // height of base platform
    floor_size_multiplier=2, // size of floor with respect to tube
    gap=6, // gap between towers
    gap_pool=6,
    multiple=1,
    pool_height=0.7,
    side_r_text="",
    side_r_text_height=1,
    side_text_r_font_size=5,
    side_text="",
    side_text_height=1,
    side_text_font_size=4,
    text="",
    text2="",
    text_font_size=5,
    wall_thickness=5)
{
    width0 = coin[0];
    width = width0 + wall_thickness*2;
    h = n_coins * coin[1];
    n_coins_pool = round(n_coins*pool_height);
    h2 = n_coins_pool * coin[1];

    // a floor
    floor_size_y = width * floor_size_multiplier;
    floor_size_x = width * multiple + floor_size_y;
    fr = corner_radius;
    translate ([0,-floor_size_y/2,0]) {
	linear_extrude(height = floor_height)
	    rounded_square(
		[floor_size_x, floor_size_y],
		[fr,fr,fr,fr], true,
		center=false)   ;
	}

    // text on plate, aligned left in front of tube
    if (text) {
	translate ([0+corner_radius/2,-floor_size_y/2+2*text_font_size+corner_radius/2,floor_height]) {
	    color("blue") linear_extrude(height = 2) {
		text(text, font = "Liberation Sans", valign="center", halign="center", text_font_size, halign="left");
	    }}}
    if (text2) {
	translate ([0+corner_radius/2,-floor_size_y/2+corner_radius/2+text_font_size/2,floor_height]) {
	    color("pink") linear_extrude(height = 2) {
		text(text2, font = "Liberation Sans", valign="center", halign="center", text_font_size, halign="left");
	    }}}

    // create the tube(s)

    difference () {
	for ( i = [0:multiple-1] ) {
	    translate ([width/2+i*width,floor_size_y/2-width/2,floor_height]) {
		fit_outside_tube (coin=coin, n_coins=n_coins, wall_thickness=wall_thickness, gap=gap, extra=extra, corner_radius=corner_radius, side_text=side_text, side_text_font_size=side_text_font_size, side_text_height=side_text_height, side_r_text=side_r_text, side_text_r_font_size=side_text_r_font_size, side_r_text_height=side_r_text_height);
	    }
	}
	// add side text to left wall of the tube if there is
	// the text will be edged into the wall. Increase its side_text_height to create holes
	if (side_text)
	#translate ([side_text_height-1,floor_size_y/2-width/2,1+floor_height]) {
	    rotate ([0,270,0]) {
		linear_extrude(height = side_text_height)
    		text(side_text, font = "Liberation Sans:style=Bold", valign="center", side_text_font_size);
	    }
	}
    }

    // Create the pool. It sits after the tube(s) and will take x-width and y-width (y dimension) of the floor-size multiplier. E.g. if it is 3, it will take 3xsize of the tube.
    pool_inside_width = [floor_size_y-wall_thickness*2, coin[1]];
    difference () {
	// move it to the right: N*tubes + half its size
	translate ([multiple*width+floor_size_y/2,0,floor_height]) {
	    fit_outside_tube (coin=pool_inside_width, n_coins=n_coins_pool, wall_thickness=wall_thickness, gap=gap_pool, extra=extra, corner_radius=corner_radius, side_text=side_text, side_text_font_size=side_text_font_size, side_text_height=side_text_height, side_r_text=side_r_text, side_text_r_font_size=side_text_r_font_size, side_r_text_height=side_r_text_height, marks=false);
	}

    // add side text to right wall if there is
    if (side_r_text)
    # translate ([multiple*width+floor_size_y-0.9,0,h2+floor_height-3]) {
	rotate ([0,90,0]) {
	    linear_extrude(height = side_r_text_height)
    	    text(side_r_text, font = "Liberation Sans:style=Bold", valign="center", side_text_r_font_size);
	}
    }
    }
}

// ---------------- Aux

// Tube creation, used by rewarder module
module fit_outside_tube (coin=EUR_1, n_coins=50, wall_thickness=6, gap=6, extra=0.5, corner_radius=4, text="", text2="", text_font_size=5, side_text="", side_text_font_size=5, side_text_height=1, side_r_text="", side_text_r_font_size=5, side_r_text_height=1, marks=true) {
	width0 = coin[0];
	h = n_coins * coin[1];
	width = width0 + wall_thickness*2;

	or = corner_radius;
	ir = corner_radius-wall_thickness/2;

	n_5_marks = floor(n_coins / 5);
	n_10_marks = floor(n_coins / 10);

	// create the tube with gaps in the walls
	difference () {
	    // Extrude the tube
	    linear_extrude(height = h)
	    difference() {
		// outer shell
		rounded_square(
		    [width, width],
		    [or,or,or,or], true);
		// inner width0 to subtract
		# rounded_square([width0 + extra, width0 + extra],
		    [ir,ir,ir,ir], true);
	    }
	    // gaps
	    // uncomment to have also a lateral gap
	    // cube (size=[width0*2,gap,h*3], center=true);
	    cube (size=[gap,width0*2,h*3], center=true);
	}

	// add the marks, 10s are left and 5s are right
	if (marks) {
	    mark_len = width0/2-gap;
	    for ( i = [1:n_5_marks] ) {
		z = i * coin[1] * 5;
		// echo ("z=",z);
		translate ([gap/2,-(width)/2,z-1]) {
		    rotate (a=[45,0,0])
		    color ("red") cube (size= [mark_len,1,1]);
		}
	    }
	    for ( i = [1:n_10_marks] ) {
		z = i * coin[1] * 10;
		echo ("z=",z);
		translate ([-mark_len-gap/2,-(width)/2,z-1]) {
		    rotate (a=[45,0,0])
		    color ("green") cube (size= [mark_len,1,1]);
		}
	    }
	}
    }

module rounded_square(dim, corners=[10,10,10,10], center=false){
  w=dim[0];
  h=dim[1];

  if (center){
    translate([-w/2, -h/2])
    rounded_square_(dim, corners=corners);
  }else{
    rounded_square_(dim, corners=corners);
  }
}

module rounded_square_(dim, corners, center=false){
  w=dim[0];
  h=dim[1];
  render(){
    difference(){
      square([w,h]);

      if (corners[0])
        square([corners[0], corners[0]]);

      if (corners[1])
        translate([w-corners[1],0])
        square([corners[1], corners[1]]);

      if (corners[2])
        translate([0,h-corners[2]])
        square([corners[2], corners[2]]);

      if (corners[3])
        translate([w-corners[3], h-corners[3]])
        square([corners[3], corners[3]]);
    }

    if (corners[0])
      translate([corners[0], corners[0]])
      intersection(){
        circle(r=corners[0]);
        translate([-corners[0], -corners[0]])
        square([corners[0], corners[0]]);
      }

    if (corners[1])
      translate([w-corners[1], corners[1]])
      intersection(){
        circle(r=corners[1]);
        translate([0, -corners[1]])
        square([corners[1], corners[1]]);
      }

    if (corners[2])
      translate([corners[2], h-corners[2]])
      intersection(){
        circle(r=corners[2]);
        translate([-corners[2], 0])
        square([corners[2], corners[2]]);
      }

    if (corners[3])
      translate([w-corners[3], h-corners[3]])
      intersection(){
        circle(r=corners[3]);
        square([corners[3], corners[3]]);
      }
  }
}

```