[User]
I'd like to create a parametric hinged box with a latch, similar to the one described in the Thingiverse link, but with some added customization options. Specifically, I need to be able to control the following parameters:

*   **Overall Dimensions:** I need to set the width (x-axis), depth (y-axis), and height (z-axis) of the box.
*   **Wall Thickness:** This should be adjustable.
*   **Hinge Dimensions:**  I need to control the outer diameter of the hinge, the inner diameter (for the hinge pin), and some slop values for both the inner hinge fit and the finger gaps.
*   **Finger Size:** This is the size of the interlocking fingers on the hinge. I need to control the length and width.
*   **Latch Width:** The width of the latch mechanism should be a parameter.
*   **Top Cover Holes:** I want to have optional holes on the top cover. I need to be able to turn the holes on or off, and specify if they're circles or squares. I should also control the hole diameter and spacing, plus a border width from the edges where the holes should begin.
*   **Edge Style:** I'd like to optionally add chamfered edges instead of sharp corners, also as a parameter.

The box should have a bottom and top piece, with interlocking fingers forming a hinge. The latch should be a simple cylinder on one half that goes into a small cutout on the other half. It would also be nice if the latch pin on the top had a ramp, so it could be more flexible.

I'd like the code to be written in OpenSCAD. I'm not really concerned about library dependencies so you can use whatever works best for this design. Thanks!

[Assistant]
Hinged_Box_Remix_v3.scad:
```
//preview[view:south, tilt:bottom]
//Number of facets
$fn = 100;
//(x axis)
width = 70;
//(y axis)
depth = 40;
//(z axis)
height = 12;
wallThickness = 1.5;
hingeOuter = 8.5;
hingeInner = 4.5;
hingeInnerSlop = .5;
hingeFingerSlop = .5;

fingerSize = 6.5;
topFingerSize = fingerSize;
latchWidth = 8;

//style at top cover
hole = 1; //[0:No holes,1:Circle,2:Square]
hole_diameter = 5;
//between hole centers
hole_spacing =10;
//border width without holes - measured from edge
hole_border =7.5;
//edge style
chamfer = 1; //[0:Sharp edges,1:Chamfer]

z = 0*width; //to be ignored by customizer
pos = -depth/2;
fingerLength = hingeOuter/1.65;

if (chamfer == 1) {
	difference() {
		bottom();
		chamfer_bottom();
   	}
	} else {
		bottom();
}

if (chamfer == 1) {
	difference() {
		top();
		chamfer_top();
   	}
	} else {
		top();
}

module chamfer_bottom() {
   difference() {
		translate([-width - fingerLength -0.2, -depth/2 -0.2, -0.1]) {
			cube([width+0.4,depth+0.4,wallThickness+0.1]);
		}
	   rotate(a=[180,0,0]) {
			translate([-width/2 - fingerLength, 0, -wallThickness-0.15]) {
				linear_extrude(height = wallThickness+0.3, center = false, convexity = 10,
				scale=([(width-2*wallThickness)/width,(depth-2*wallThickness)/depth] ))
		 		square([width+0.2,depth+0.2], true);
				}
		}
	}
}

module chamfer_top() {
   difference() {
		translate([ fingerLength -0.1, -depth/2 -0.2, -0.1]) {
			cube([width+0.4,depth+0.4,wallThickness]);
		}
	   rotate(a=[180,0,0]) {
			translate([width/2 + fingerLength, 0, -wallThickness -0.15]) {
				linear_extrude(height = wallThickness+0.3, center = false, convexity = 10,
				scale=([(width-2*wallThickness)/width,(depth-2*wallThickness)/depth] ))
		 		square([width+0.2,depth+0.2], true);
				}
		}
	}
}

module bottom() {
	union() {
		// main box and cutout
		difference() {
			translate([-width - fingerLength, -depth/2, 0]) {
				cube([width,depth,height]);
			}

			translate([(-width - fingerLength) + wallThickness, -depth/2 + wallThickness, wallThickness]) {
				cube([width - (wallThickness * 2), depth - (wallThickness * 2), height]);
			}

			// latch cutout
			translate([-width - fingerLength + (wallThickness/2), (-latchWidth/2) - (hingeFingerSlop/2), wallThickness]) {
				cube([wallThickness/2 + .1, latchWidth + hingeFingerSlop, height]);
			}

		}

		//latch cylinder
		difference() {
			translate([-width - fingerLength + (wallThickness/2), -latchWidth/2, height - 1]) {
				rotate([-90,0,0]) {
					cylinder(r = 1, h = latchWidth);
				}
			}
			// front wall wipe
			translate([-width - fingerLength - 5, -depth/2,0]) {
				cube([5,depth,height]);
			}
		}

		difference() {
			hull() {
				translate([0,-depth/2,height]) {
					rotate([-90,0,0]) {
						cylinder(r = hingeOuter/2, h = depth);
					}
				}
				translate([-fingerLength - .1, -depth/2,height - hingeOuter]){
					cube([.1,depth,hingeOuter]);
				}
				translate([-fingerLength, -depth/2,height-.1]){
					cube([fingerLength,depth,.1]);
				}
				translate([0, -depth/2,height]){
					rotate([0,45,0]) {
						cube([hingeOuter/2,depth,.01]);
					}
				}
			}
			// finger cutouts

			for  (i = [-depth/2 + fingerSize:fingerSize*2:depth/2]) {
				translate([-fingerLength,i - (fingerSize/2) - (hingeFingerSlop/2),0]) {
					cube([fingerLength*2,fingerSize + hingeFingerSlop,height*2]);
				}
			}
		}

		// center rod
		translate([0, -depth/2, height]) {
			rotate([-90,0,0]) {
				cylinder(r = hingeInner /2, h = depth);
			}
		}
	}
}

module top() {
	union() {
		difference() {
			translate([fingerLength, -depth/2, 0]) {
				cube([width,depth,height - .5]);
			}

			translate([fingerLength + wallThickness, -depth/2 + wallThickness, wallThickness]) {
				cube([width - (wallThickness * 2), depth - (wallThickness * 2), height]);
			}
	      if (hole > 0) {
				union () {
				for (x = [fingerLength+ hole_border + hole_diameter/2:hole_spacing:width + fingerLength - hole_border - hole_diameter/2] )
				 for (y = [-depth/2 + hole_border + hole_diameter/2:hole_spacing:depth/2 - hole_border -hole_diameter/2 ] )
				     {translate([x,y,-0.1])
						if (hole == 1) {
						cylinder (d=hole_diameter, h = wallThickness+0.2); }
						else {
						cube ([hole_diameter,hole_diameter, wallThickness*2 + 0.4], center = true);
						}
					}
		      }
			}
		}

		//latch
		translate([width + fingerLength - wallThickness - 1.5, (-latchWidth/2), 0]) {
			cube([1.5, latchWidth, height - .5 + 4]);
		}
		translate([width + fingerLength - wallThickness, -latchWidth/2, height - .5 + 3]) {
			rotate([-90,0,0]) {
				cylinder(r = 1, h = latchWidth);
			}
		}

		difference() {
			hull() {
				translate([0,-depth/2,height]) {
					rotate([-90,0,0]) {
						cylinder(r = hingeOuter/2, h = depth);
					}
				}
				translate([fingerLength, -depth/2,height - hingeOuter - .5]){
					cube([.1,depth,hingeOuter - .5]);
				}
				translate([-fingerLength/2, -depth/2,height-.1]){
					cube([fingerLength,depth,.1]);
				}
				translate([0, -depth/2,height]){
					rotate([0,45,0]) {
						cube([hingeOuter/2,depth,.01]);
					}
				}
			}
			// finger cutouts
			for  (i = [-depth/2:fingerSize*2:depth/2 + fingerSize]) {
				translate([-fingerLength,i - (fingerSize/2) - (hingeFingerSlop/2),0]) {
					cube([fingerLength*2,fingerSize + hingeFingerSlop,height*2]);
				}
				if (depth/2 - i < (fingerSize * 1.5)) {
					translate([-fingerLength,i - (fingerSize/2) - (hingeFingerSlop/2),0]) {
						cube([fingerLength*2,depth,height*2]);
					}
				}
			}

			// center cutout
			translate([0, -depth/2, height]) {
				rotate([-90,0,0]) {
					cylinder(r = hingeInner /2 + hingeInnerSlop, h = depth);
				}
			}
		}
	}
}

```


[User]
I'd like to create a set of parametric bolt and nut generators in OpenSCAD, please.

The bolt generator should allow me to specify:

*   **Bolt Diameter:** The overall diameter of the bolt shaft.
*   **Bolt Height:** The length of the threaded portion of the bolt.
*   **Thread Pitch:** The distance between threads. I'd prefer to specify this directly, rather than twists per mm, because it's more standard.
*   **Head Diameter:** The diameter of the bolt head.
*   **Head Height:** The height of the bolt head.
*   **Head Type:** The shape of the bolt head. I'd like to be able to choose between a standard hexagonal head and a cylindrical head.
*   **Thread Quality:** This should control the smoothness of the threads, essentially the `$fn` setting used to define the circles making up the thread.

The nut generator should be able to create nuts that match the specified bolt. It should use the same parameters as the bolt, but the dimensions should be altered to make the nut fit. For the threads on the nut, I'd prefer a simple boolean subtraction for the threads, rather than a screw. It should also have the ability to create a simple hexagonal nut as an option.

I'd like to minimize the use of linear extrudes with twist in the bolt generator as this tends to have performance issues at larger bolt diameters. I think using the rotate_extrude function might be more performant, especially when I need to generate a thread that can take a boolean subtraction.

I'm not using any specific libraries yet, so I'd like you to create these from scratch. Please provide individual .scad files for the bolt and the nut.

[Assistant]
bolt_generator.scad:
```
Bolt_quality = 200;
//Amount of Sides
Top_Sides = 5;
/////////////////////
Bolt_Height = 5;
//twists per milimeter
Twist_Setting = 1;
//Diameter of whole bolt.
Bolt_Diameter = 3;
//
twist_per_rot = Twist_Setting*365*Bolt_Height;
linear_extrude(height = Bolt_Height, center = false, convexity = 10, twist = twist_per_rot)
translate([Bolt_Diameter*.85, 0, 0])
circle(r = 1);
cylinder(r=(Bolt_Diameter*1.75)/2,h = Bolt_Height);
$fn = Bolt_quality;
cylinder(r = Bolt_Diameter*1.5,h = 1, $fn = Top_Sides, center = false);
```


[User]
I need a custom token holder for a board game. I'd like to be able to adjust the diameter of the token hole, the height of the holder, the wall thickness, and the number of holders stacked vertically. It'd also be great if I could add a little tab or grab handle to the side of each holder to make it easier to pull out tokens. I'm envisioning a cylindrical design with a hollow center for each token. Think a stack of them.

I'd like the code to be in OpenSCAD, with parameters for all those things - `diameter` for the token hole, `height` for the holder height, `thk` for the wall thickness, `count` for the number of holders, and `grab` as a boolean to control whether the grab tab is present. If `grab` is true (1), then it should add a rectangular tab sticking out the side.

I'd also like the design to be parametric - so I can easily change the dimensions later on. I'm not looking for fancy rendering just yet, so no need for complex shapes. I just need a basic functional design to get started.

[Assistant]
CustomCircularTokenHolder.scad:
```
//
// Custom Circular Token Holder
//
// Copyright 2016 Julia Valencia
//
// Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)
// http://creativecommons.org/licenses/by-nc/3.0/

//diameter(mm) of the hole for the token
diameter = 20;
//height(mm) of the holder
height = 40;
//how thick(mm) the walls are
thk = 3;
//how many holders?
count = 3;
//do you want it to be easily grabable? NOTE: this is to allow creativity! Like making a custom toilet paper holder! or a pencil holder! :D
grab = 1;// [1:Yes,0:No]

radius = diameter/2;
difference (){
    for(i=[0:1:count-1]){
     translate([0,(diameter+thk/2)*i,0])
       cylinder(h=height+thk, d = diameter+thk);
    }
    for(i=[0:1:count]){
     translate([0,(diameter+thk/2)*i,thk])
       cylinder(h=height, d = diameter);
     if (grab == 1){
      translate([-radius-thk/2,(diameter+thk/2)*i+(-radius/2),thk])
       cube([diameter+thk,radius,height]);
     }
    }
}
```


[User]
I'm looking to create a set of connectors for kite spars, and I'd like them to be parametric so I can easily adjust them for different rod diameters and angles.

Essentially, I need a central hub with cylindrical sockets extending outwards to hold the spars. The number of sockets, their lengths, the inner diameter (for the spars to fit into), and the angles they extend at should all be configurable. It would also be nice to assign colors to each socket, just for visual differentiation when printing.

The central hub should have a minimum outer diameter so it has some strength. I’d also like to specify a minimum shell thickness to avoid having very thin walls in any area. It would be nice to have the ability to specify the units I'm entering dimensions in (like inches, mm, or cm) and have it output in my preferred units as well.

I'm looking for something like the attached code, but instead of just using hardcoded 'arm' values, I want the code to be much more flexible. I would prefer it to be structured in a way that makes it easier to add and configure new "arms" without having to manually create variables for each one. This should also be easier to set up in a GUI that is used by a custom application for generating custom models.

The attached code is not as customizable as I'd like; I'd prefer to set up something that uses a more configurable data structure for the 'arms' and avoids hardcoding each one of them.

Specifically, I would like the OpenSCAD files to include:

*   A `module` for creating a socket that takes inner diameter, length, and rotation angles as parameters, and a color.
*   A module to create the central hub, also with a configurable outer diameter and minimum shell thickness.
*   A data structure to store the parameters for each socket. Ideally a list of lists or similar.
*   The ability to specify input and output units, and perform the conversion internally.
*   Error checking in the code to ensure that no shell thickness is less than the configured minimum
*   The final output of the hub should be a solid.

I don’t need this to be a library, but I would like to use functions and modules to organize the code and make it easier to maintain. I don’t need to use any external libraries for this project.

[Assistant]
kite_pole_connectors.scad:
```
//for kites :)
/*[Universal Features]*/
outter_diameter = .375;
//aka what is the skiniest you will want this to be regardless of what you enter.
minimum_shell = .0625;
minimum_length = 1;
/*[units]*/
//Basically are you using american units or real units
units_entered = 25.4;//[1:mm, 10:cm, 1000:meter, 25.4:inch, 304.8:foot]
//default is mm for most printers
desired_units_for_output = 1;//[1:mm, .1:cm, 0.001:meter, 0.0393701:inch, 0.00328084:foot]

/*[arm 1]*/
arm_1_length = 1;
arm_1_inner_diameter = 0.25;
//x,y,z
arm_1_angle = [0,0,0];
//color in rgb values
arm_1_color = [1,0,0];
/*[arm 2]*/
arm_2_length = 1;
arm_2_inner_diameter = 0.25;
//x,y,z
arm_2_angle = [0,90,0];
//color in rgb values
arm_2_color = [0,1,0];
/*[arm 3]*/
arm_3_length = 1;
arm_3_inner_diameter = 0.25;
//x,y,z
arm_3_angle = [0,90,90];
//color in rgb values
arm_3_color = [0,0,1];
/*[arm 4]*/
arm_4_length = 1;
arm_4_inner_diameter = 0.25;
//x,y,z
arm_4_angle = [0,-90,0];
//color in rgb values
arm_4_color = [1,1,0];
/*[arm 5]*/
arm_5_length = 1;
arm_5_inner_diameter = 0.25;
//x,y,z
arm_5_angle = [90,0,0];
//color in rgb values
arm_5_color = [1,0,1];
/*[arm 6]*/
arm_6_length = 1;
arm_6_inner_diameter = 0.25;
//x,y,z
arm_6_angle = [0,180,0];
//color in rgb values
arm_6_color = [0,1,1];
/*[arm 7]*/
arm_7_length = 0;
arm_7_inner_diameter = 0.25;
//x,y,z
arm_7_angle = [0,0,0];
//color in rgb values
arm_7_color = [1,1,1];
/*[arm 8]*/
arm_8_length = 0;
arm_8_inner_diameter = 0.25;
//x,y,z
arm_8_angle = [0,0,0];
//color in rgb values
arm_8_color = [.5,.5,0];
/*[arm 9]*/
arm_9_length = 0;
arm_9_inner_diameter = 0.25;
//x,y,z
arm_9_angle = [0,0,0];
//color in rgb values
arm_9_color = [0,.5,.5];
/*[arm 10]*/
arm_10_length = 0;
arm_10_inner_diameter = 0.25;
//x,y,z
arm_10_angle = [0,0,0];
//color in rgb values
arm_10_color = [.5,0,.5];

array_to_reference =
[[arm_1_length,arm_1_inner_diameter,arm_1_angle,arm_1_color],[arm_2_length,arm_2_inner_diameter,arm_2_angle,arm_2_color],[arm_3_length,arm_3_inner_diameter,arm_3_angle,arm_3_color],[arm_4_length,arm_4_inner_diameter,arm_4_angle,arm_4_color],[arm_5_length,arm_5_inner_diameter,arm_5_angle,arm_5_color],[arm_6_length,arm_6_inner_diameter,arm_6_angle,arm_6_color],[arm_7_length,arm_7_inner_diameter,arm_7_angle,arm_7_color],[arm_8_length,arm_8_inner_diameter,arm_8_angle,arm_8_color],[arm_9_length,arm_9_inner_diameter,arm_9_angle,arm_9_color],[arm_10_length,arm_10_inner_diameter,arm_10_angle,arm_10_color]];
unit_conversion_factor = units_entered*desired_units_for_output;

scale(unit_conversion_factor){
	difference(){
		union(){
			sphere(outter_diameter,$fs=.05);
			for(current_arm = [0:9]){
				rotate(array_to_reference[current_arm][2]){
					difference(){
						if(true){
							color(array_to_reference[current_arm][3]){
								linear_extrude(array_to_reference[current_arm][0]){
									circle(outter_diameter,$fs = .05);
								}
							}
						}
					}
				}
			}
		}
		union(){
			for(current_arm = [0:9]){
				rotate(array_to_reference[current_arm][2]){
					translate([0,0,-.01]){
						color(array_to_reference[current_arm][3]*.9){
							linear_extrude(array_to_reference[current_arm][0]+.02){
								circle(array_to_reference[current_arm][1],$fs = .025);
							}
						}
					}
				}
			}
		}
	}
}

```


[User]
Hey, I'm looking to get some OpenSCAD code generated for a customizable enclosure. I need it to be a basic box shape with rounded corners and a few different lid options.

Here's the breakdown of what I'm thinking:

**Enclosure Basics:**

*   I need parameters for the width, height, and depth of the enclosure, as well as a parameter for the thickness of the walls.
*   I also want a parameter for corner rounding (fillet radius).
*   The enclosure should be a hollow box - the walls, top and bottom should be of uniform thickness.

**Lid Options:**

*   I want to have a selection of lid types:
    *   **None:** No lid at all, just the open box.
    *   **Simple:** A flat lid that just sits on top of the enclosure.
    *   **Partial Lip:** A lid with a lip that fits *inside* the enclosure walls, but only partially - I want a parameter for how wide the lip should be. I also need a way to adjust how tall the lip is.
    *   **Full Lip:** A lid with a lip that fits *inside* the enclosure, going all the way around.
*   I also want an overall parameter to control how much extra space the lid has inside the box, between the inner wall and the lid lip, for all of the lip-type lids.

So, to recap, I'd like the following parameters:

*   `width` (enclosure width)
*   `height` (enclosure height)
*   `depth` (enclosure depth)
*   `thickness` (wall/lid thickness)
*   `fillet_radius` (corner rounding)
*   `lid_type` (options: "None", "Simple", "Partial", "Full")
*   `lip_width` (width of partial lip, only used for the "Partial" type)
*   `lip_added_height` (additional height of the lip)
*   `lid_space` (extra space between lid and enclosure walls for lid types that have lips)

I'd like this all to be in one or more .scad files if possible, whatever works best. I'm not using any external libraries for now, so please don't include any references to things like MCAD or BOSL etc.

[Assistant]
enclosure_with_lid.scad:
```
//
// Customized Enclosure
//

/*[Dimensions]*/

// Width of the enclosure
width = 100.0;
// Height of the enclosure
height = 50.0;
// Depth of the enclosure
depth = 20.0;
// Thickness of the walls and lid
thickness = 1.5;
// Amount of corner rounding
fillet_radius = 5.0;

/* [Lid] */

// Lid Type
lid_type = "Partial"; //[None, Simple, Partial, Full]
// Width of partial lip
lip_width = 4;
// Additional height added to lip
lip_added_height = 1;
// Extra Lid spacing
lid_space = 1;

if (lid_type == "None") {
    enclosure(width, height, depth, fillet_radius, thickness);
}
if (lid_type == "Simple") {
    enclosure(width, height, depth, fillet_radius, thickness);
    simple_lid(width, height, fillet_radius, thickness);
}
if (lid_type == "Partial") {
    enclosure(width, height, depth, fillet_radius, thickness);
    partial_lip_lid(width, height, fillet_radius, thickness);
}
if (lid_type == "Full") {
    enclosure(width, height, depth, fillet_radius, thickness);
    full_lip_lid(width, height, fillet_radius, thickness);
}

//
// builds a solid rectangle with rounded corners (Z-only)
//
module block(width, height, depth, fillet_radius) {

    difference() {
        cube([width, height, depth], center = true);

        fudge = 0.1;
        fudge_depth = depth + 1.0;

        translate([-(width / 2 + fudge), -(height / 2 + fudge), -(fudge_depth / 2)])
        intersection () {
            cube([fillet_radius, fillet_radius, fudge_depth], center = false);
            difference() {
                    cube([2 * fillet_radius, 2 * fillet_radius, fudge_depth], center = false);
                    translate([fillet_radius, fillet_radius, 0.0])
                    cylinder(r = fillet_radius, h = fudge_depth);
            }
        }

        translate([-(width / 2 + fudge), (height / 2 + fudge), -(fudge_depth / 2)])
        rotate([0.0, 0.0, -90])
        intersection () {
            cube([fillet_radius, fillet_radius, fudge_depth], center = false);
            difference() {
                    cube([2 * fillet_radius, 2 * fillet_radius, fudge_depth], center = false);
                    translate([fillet_radius, fillet_radius, 0.0])
                    cylinder(r = fillet_radius, h = fudge_depth);
            }
        }

        translate([(width / 2 + fudge), (height / 2 + fudge), -(fudge_depth / 2)])
        rotate([0.0, 0.0, 180])
        intersection () {
            cube([fillet_radius, fillet_radius, fudge_depth], center = false);
            difference() {
                    cube([2 * fillet_radius, 2 * fillet_radius, fudge_depth], center = false);
                    translate([fillet_radius, fillet_radius, 0.0])
                    cylinder(r = fillet_radius, h = fudge_depth);
            }
        }

        translate([(width / 2 + fudge), -(height / 2 + fudge), -(fudge_depth / 2)])
        rotate([0.0, 0.0, 90])
        intersection () {
            cube([fillet_radius, fillet_radius, fudge_depth], center = false);
            difference() {
                    cube([2 * fillet_radius, 2 * fillet_radius, fudge_depth], center = false);
                    translate([fillet_radius, fillet_radius, 0.0])
                    cylinder(r = fillet_radius, h = fudge_depth);
            }
        }
    }
}

module enclosure(width, height, depth, fillet_radius, thickness) {
    translate([0.0, 0.0, depth / 2.0])
    difference() {
        block(width, height, depth, fillet_radius);
        translate([0.0, 0.0, thickness])
            block(width - (2 * thickness), height - (2 * thickness), depth - thickness, fillet_radius);
    }
}

module simple_lid(width, height, fillet_radius, thickness) {
    translate([0.0, height + 10, thickness / 2.0])
        block(width, height, thickness, fillet_radius);
}

module partial_lip_lid(width, height, fillet_radius, thickness) {
    difference() {
        union() {
            translate([0.0, height + 10, thickness / 2.0])
                block(width, height, thickness, fillet_radius);
            translate([0.0, height + 10, thickness / 2.0 + thickness])
                block(width - (2 * thickness) - lid_space, height - (2 * thickness) - lid_space, thickness + lip_added_height, fillet_radius);
        }
        translate([0.0, height + 10, thickness / 2.0 + thickness + 1])
            block((width - (2 * thickness)) - lip_width, (height - (2 * thickness)) - lip_width, thickness + lip_added_height, fillet_radius );
    }
}

module full_lip_lid(width, height, fillet_radius, thickness) {
    union() {
        translate([0.0, height + 10, thickness / 2.0])
            block(width, height, thickness, fillet_radius);
        translate([0.0, height + 10, thickness / 2.0 + thickness])
            block(width - (2 * thickness) - lid_space, height - (2 * thickness) - lid_space, thickness + lip_added_height, fillet_radius);
    }
}

```


[User]
Okay, I'd like to design a combined shopping cart token and paper clip holder, and I'd like to use OpenSCAD. I have a pretty good idea of what I want, but I need it to be parametric so I can adjust it to different sized coins. I want the design to consist of two main parts: a coin replica with a built-in screw mount, and a paper clip holder that attaches to the coin via the screw.

The coin replica should be a cylinder with the correct diameter and thickness of a real coin. It needs a rectangular extrusion extending out from one edge which forms a neck, and then a hole through the neck for the screw. I'll want to specify the diameter and length of the screw. The screw hole itself should have a slight recess or counterbore on the side facing away from the coin to help the screw head sit flush.

The paper clip holder will be designed to attach to the neck of the coin replica using the screw and should have a few features: It will need a slot where the paper itself can be inserted. Additionally, it needs a couple of "fingers" that stick up and bend down to clip the paper. It should also have a main body that follows the curvature of the coin where it interfaces and have the same thickness.

I need to be able to specify the following parameters:

*   `coin_diameter`: The diameter of the coin in millimeters.
*   `coin_thickness`: The thickness of the coin in millimeters.
*   `screw_diameter`: The diameter of the screw in millimeters.
*  `screw_length`: The length of the screw in millimeters.
*   `neck_length`: The length of the neck (affects the size of the paper clip holder).
*   `wallthickness`: The thickness of the walls of the screw mount.
*   `paperholder_thickness`: The thickness of the paper clip holder part.

I would like the design to be created in two separate modules that can be instantiated separately for the coin and the paper clip holder, which can then be combined. It would also be helpful to have the option to choose between generating just the coin part, just the paperclip part, or both. Could you generate the OpenSCAD file for this?

[Assistant]
shopping_cart_token_w_paper_clip.scad:
```
//Diameter of coin in mm
coin_diameter = 28.5;
//Thickness of coin in mm
coin_thickness = 2.0;
//Screw size in mm
screw_diameter = 3.0;
//Screw length in mm
screw_length = 16;
//Length of the neck in mm (affects the size of the paper clip)
neck_length = 5;
//Needed parts
parts = "Both"; //[Coin, Paperclip, Both]

wallthickness = 2*1;
coin_radius = coin_diameter / 2.0;
paperholder_thickness = 1.5*1;

module CreateCoin()
{
    difference()
    {
        union()
        {
            cylinder(h=coin_thickness, r=coin_radius, $fn = 100);
            translate([-screw_length/2, 0, 0 ])
            cube([screw_length, neck_length+coin_radius, coin_thickness]);
            translate([-screw_length/2, neck_length+coin_radius, screw_diameter/2+wallthickness])
            rotate([0,90,0])
            cylinder(h=screw_length, r=screw_diameter/2+wallthickness, $fn = 50);
            translate([-screw_length/2, neck_length+coin_radius-screw_diameter/2-wallthickness, 0])
            cube([screw_length, screw_diameter/2+wallthickness, screw_diameter/2+wallthickness]);
        }
        union()
        {
            translate([-screw_length/2-1, neck_length+coin_radius, screw_diameter/2+wallthickness])
            rotate([0,90,0])
            cylinder(h=screw_length+2, r=screw_diameter/2-0.1, $fn = 50);
            translate([-screw_length/4, neck_length+coin_radius, screw_diameter/2+wallthickness])
            rotate([0,90,0])
            cylinder(h=screw_length/2, r=screw_diameter/2+wallthickness+0.6, $fn = 50);
        }
    }
}

module CreatePaperHolder()
{
    difference()
    {
        union()
        {
            yoffset = coin_radius+(neck_length-(screw_diameter/2+wallthickness)-((screw_diameter/2+wallthickness)-paperholder_thickness))-3;

            translate([-screw_length/4+0.2, neck_length+coin_radius, screw_diameter/2+wallthickness])
            rotate([0,90,0])
            cylinder(h=screw_length/2-0.4, r=screw_diameter/2+wallthickness, $fn = 50);
            translate([-screw_length/4+0.2, neck_length+coin_radius-(screw_diameter/2+wallthickness), 0])
            cube([screw_length/2-0.4, screw_diameter/2+wallthickness, screw_diameter/2+wallthickness]);
            difference()
            {
                translate([-screw_length/4+0.2, neck_length+coin_radius-(screw_diameter/2+wallthickness)-((screw_diameter/2+wallthickness)-paperholder_thickness), 0])
                cube([screw_length/2-0.4, ((screw_diameter/2+wallthickness)-paperholder_thickness), screw_diameter/2+wallthickness]);
                translate([-screw_length/4, neck_length+coin_radius-(screw_diameter/2+wallthickness)-((screw_diameter/2+wallthickness)-paperholder_thickness), screw_diameter/2+wallthickness])
                rotate([0,90,0])
                cylinder(h=screw_length/2, r=((screw_diameter/2+wallthickness)-paperholder_thickness), $fn=50);
            }
            difference()
            {
                translate([-screw_length/2, neck_length+coin_radius-(screw_diameter/2+wallthickness), 0])
                cube([screw_length, (screw_diameter/2+wallthickness), paperholder_thickness]);
                translate([-screw_length/2-1, neck_length+coin_radius, screw_diameter/2+wallthickness])
                rotate([0,90,0])
                cylinder(h=screw_length+2, r=screw_diameter/2+wallthickness+0.6, $fn = 50);

            }
            intersection()
            {
                length = coin_diameter+neck_length-(screw_diameter/2+wallthickness);
                union()
                {
                   translate([-coin_radius, -coin_radius, 0])
                   cube([coin_diameter, length-2, paperholder_thickness]);               translate([-coin_radius+2, -coin_radius+length-2, 0])
                   {
                        cylinder(r=2, h = paperholder_thickness, $fn=50);
                       cube([coin_diameter-4, 2, paperholder_thickness]);
                   }
                   translate([coin_radius-2, -coin_radius+length-2, 0])
                   cylinder(r=2, h = paperholder_thickness, $fn=50);
                }
                union()
                {
                    cylinder(r=coin_radius, h=paperholder_thickness, $fn=100);
                    translate([-coin_radius, 0, 0])
                    cube([coin_diameter, coin_radius+neck_length-(screw_diameter/2+wallthickness), paperholder_thickness]);

                }
            }
        }
        union()
        {
            translate([-screw_length/2-1, neck_length+coin_radius, screw_diameter/2+wallthickness])
            rotate([0,90,0])
            cylinder(h=screw_length+2, r=screw_diameter/2-0.1, $fn = 50);
            length = coin_diameter+neck_length-(screw_diameter/2+wallthickness);
            cutLength = length - 6;
            translate([0, -coin_radius, paperholder_thickness/2])
            {
                translate([-coin_diameter/5, 0, 0])
                rotate([0,60,0])
                cube([1, cutLength*2, 10], center = true);
                translate([coin_diameter/5, 0, 0])
                rotate([0,-60,0])
                cube([1, cutLength*2, 10], center = true);
            }
        }
    }
}

if( parts == "Both" || parts == "Coin" )
{
    CreateCoin();
}
if( parts == "Both" || parts == "Paperclip" )
{
    translate([-(coin_diameter+10), 0, 0])
    CreatePaperHolder();
}
//translate([0,0,screw_diameter+wallthickness*2])
//rotate([0,180,0])
//CreatePaperHolder();

```


[User]
Hi there, I'm looking for some help designing a parametric motor mount for RC airplanes using OpenSCAD. I've seen some designs that are similar, but I need something more flexible.

Here's what I'm after:

The mount should be a box-like structure with a back plate, a bottom plate, and two side plates, all connected.  I need to be able to adjust the overall dimensions of this box, specifically the length (X), and the width/height (Y/Z, which are equal). I'd like to call these `cube_x` and `cube_yz`. The plates should all be connected by a smooth curved hull with an adjustable wall thickness. Let's call that `wall_thickness`, and also have `wall_res` control the smoothness/resolution of those curved edges (more segments equals smoother). There should be a large circular hole at the back of the mount for the motor shaft, diameter `prop_shaft_dia`. This hole should be centered.

I also need mounting holes for the motor itself. These holes should be able to slide to help align motors with different hole spacing. Specifically, I need two pairs of these sliding holes, arranged symmetrically around the shaft hole. The holes are for screws, so they'll need a diameter `prop_screw_dia`, and the amount they can slide by needs to be controlled by `prop_screw_slide_length`. I need the distance between the *centers* of each pair of sliding holes to be set using `prop_screw_seperation`. Also, I need to be able to rotate the whole group of mounting holes around the center of the prop shaft hole by an angle `prop_mount_rotation`.

The whole thing also needs to be attachable to the aircraft frame, and to do that, I need more screw holes which also slide to allow for some adjustments. Four holes arranged in a rectangle (two on each side of the centerline), with diameter `retain_screw_dia` which slide back and forth by amount specified with `retain_screw_slide`. The distance between these holes in the X direction should be set by `retain_screw_x_seperation` and in the Y direction should be `retain_screw_y_seperation`.  I want to be able to rotate the direction of the retaining screw slides (all four at once), so I'll need a `retain_screws_rotation` parameter.

Finally, I'd like to have two circular cutouts on the sides (left and right) to allow cable routing, and be adjustable in size using `circle_dia`.

It would be fantastic if you could generate this as a single OpenSCAD file with all these parameters, and make sure it is well commented so I can follow the code. I don't think I need any external libraries for this.

[Assistant]
customisable_rc_motor_mount_V4.scad:
```
/*
Adjustable Motor Mount
    -by Harlo
    -27/04/2016

A universal, configurable motor mount
for attaching electric RC motors to
planes etc. at 90 degrees.
*/

//Wall thickness/Edge Diameter
wall_thickness = 3; //[1:0.25:10]
//Edge 'Smoothness' -- higher is smoother
wall_res = 32; //[20:2:60]
//Size of the brackets back plate dimensions (YZ)
cube_yz = 30; //[11:0.5:150]
//Size of the brackets length (X)
cube_x = 40; //[11:0.5:150]
//Propellor Shaft - Max Diameter (at back)
prop_shaft_dia = 7; //[0:0.5:20]
//Propellor Fixing Screws Diameter
prop_screw_dia = 3.55; //[2:0.25:10]
//Propellor Retainer Slide Length
prop_screw_slide_length = 4; //[0:0.5:10]
//Propellor Fixing Screw Seperation -- center to center
prop_screw_seperation = 19; //[5:0.5:30]
//Rotation of Fixing Screw Holes (degrees)
prop_mount_rotation = 45; //[0:None, 45:Easier_Printing]

//Retaining Screw Diameter
retain_screw_dia = 3.8; //[0:0.25:10]
//Retaining Screw Slide Length
retain_screw_slide = 8; //[0:0.5:10]
//Retaining Screw X Seperation
retain_screw_x_seperation = 18; //[0:0.5:120]
//Retaining Screw Y Seperation
retain_screw_y_seperation = 16; //[0:0.5:120]
//Rotation of Retaining Screw Holes
retain_screws_rotation = 0; //[0:Slides_Forwards, 90:Slides_Sideways]

///Internal Variables
plate_offset = (cube_yz/2) - (wall_thickness/2); // internal calculation for placing seperate pieces
plate_offset_x = (cube_x/2) - (wall_thickness/2);

    final_unit();

module final_unit(){
difference(){
    solid_bracket();
    cut_side_circles();
    cut_prop_mount();
    rotate([0,0,retain_screws_rotation]){
    cut_screw_mount();
    }
}
}

module cut_screw_mount(){

    mount_screw_slide(retain_screw_x_seperation/2, retain_screw_y_seperation/2, retain_screw_slide);

    mount_screw_slide(retain_screw_x_seperation/2, -retain_screw_y_seperation/2, retain_screw_slide);

    mount_screw_slide(-retain_screw_x_seperation/2, retain_screw_y_seperation/2, retain_screw_slide);

    mount_screw_slide(-retain_screw_x_seperation/2, -retain_screw_y_seperation/2, retain_screw_slide);

}

module cut_prop_mount(){
rotate([prop_mount_rotation,0,0]){
screw_slide_hole(0);
screw_slide_hole(90);
screw_slide_hole(180);
screw_slide_hole(270);
}
    rotate([0,90,0]){
        cylinder ( h = cube_yz + cube_x +2, d = prop_shaft_dia, center = true, $fn = prop_shaft_dia * 8);
    }

}

//added wall thickness variable in this module
module mount_screw_slide(x_pos, y_pos, slide_in_mm){
hull(){
    translate([x_pos + slide_in_mm/2 - wall_thickness/2,y_pos,0]){
        cylinder(h = cube_yz + cube_x +2, d = retain_screw_dia, center = true, $fn = retain_screw_dia * 8);
    }

    translate([x_pos - slide_in_mm/2 - wall_thickness/2,y_pos,0]){
        cylinder(h = cube_yz + cube_x +2, d = retain_screw_dia, center = true, $fn = retain_screw_dia * 8);
    }
}
}

module screw_slide_hole(rotation){
    rotate([rotation,0,0]){
translate([0,0,prop_screw_seperation/2]){
    hull(){
    //positive z pos
    translate([0,0,prop_screw_slide_length/2]){
        rotate([0,90,0]){
            cylinder (h = cube_yz + cube_x +2, d = prop_screw_dia, center = true, $fn = prop_screw_dia * 8);
        }
    }
    //negative z pos
    translate([0,0,-prop_screw_slide_length/2]){
        rotate([0,90,0]){
            cylinder (h = cube_yz + cube_x +2, d = prop_screw_dia, center = true, $fn = prop_screw_dia * 8);
        }
    }
}
}
}
}

module solid_bracket(){
    union(){
    back_plate();
    side_plate();
    mirror([0,1,0]){
        side_plate();
    }
    bottom_plate();
}
}

module cut_side_circles(){

    circle_dia = (cube_yz-(wall_thickness*3))/2;

    translate([(cube_x/2) - (wall_thickness*1.5 + circle_dia/2),0,-((cube_yz)/4 - wall_thickness/2)]){
    rotate([90,0,0]){
        cylinder (h = cube_yz + 2, d = circle_dia, center = true, $fn = cube_yz * 8);
    }
}
}

//FROM HERE
module back_plate(){
        hull(){
            //Bottom left
            translate([plate_offset_x,-plate_offset,- plate_offset]){
                sphere(d = wall_thickness, center = true, $fn = wall_res);
            }
            //Bottom right
            translate([plate_offset_x,plate_offset,- plate_offset]){
                sphere(d = wall_thickness, center = true, $fn = wall_res);
            }
            //Top left
            translate([plate_offset_x,-plate_offset, plate_offset]){
                sphere(d = wall_thickness, center = true, $fn = wall_res);
            }
            //Top right
            translate([plate_offset_x,plate_offset, plate_offset]){
                sphere(d = wall_thickness, center = true, $fn = wall_res);
            }

        }
}

module bottom_plate(){
    hull(){
            //Bottom left
            translate([plate_offset_x,-plate_offset,- plate_offset]){
                sphere(d = wall_thickness, center = true, $fn = wall_res);
            }
            //Bottom right
            translate([plate_offset_x,plate_offset,- plate_offset]){
                sphere(d = wall_thickness, center = true, $fn = wall_res);
            }

            //Front left
            translate([-plate_offset_x,-plate_offset, -plate_offset]){
                sphere(d = wall_thickness, center = true, $fn = wall_res);
            }

            //Front right
            translate([-plate_offset_x, plate_offset, -plate_offset]){
                sphere(d = wall_thickness, center = true, $fn = wall_res);
            }

    }

}

module side_plate(){
    hull()
    {
            //Bottom left
            translate([plate_offset_x,-plate_offset,- plate_offset]){
                sphere(d = wall_thickness, center = true, $fn = wall_res);
            }

            //Top left
            translate([plate_offset_x,-plate_offset, plate_offset]){
                sphere(d = wall_thickness, center = true, $fn = wall_res);
            }

            //Front left
            translate([-plate_offset_x,-plate_offset, -plate_offset]){
                sphere(d = wall_thickness, center = true, $fn = wall_res);
            }

    }
}
```


[User]
Okay, I'm looking to create a parametric design for a maze embedded within a soccer ball-like polyhedron. I've seen some existing designs that do this, but I'd like to generate my own with a bit more control over the parameters.

Here's the breakdown:

1.  **Overall Shape:** The base shape needs to be a soccer-ball-like polyhedron, meaning it should consist of pentagons and hexagons arranged in the standard truncated icosahedron pattern.

2.  **Maze Generation:** The maze should be generated using a recursive backtracking algorithm, ensuring that there's a single path through the maze. I'll want to control the number of rows and columns for the maze.

3.  **Maze Placement:** The maze needs to be projected onto the faces of the polyhedron. I want options for having the maze on *only* the pentagons, *only* the hexagons, or *both*.

4.  **Parametric Controls:** I need to be able to set:
    *   The overall **height** of the soccer ball (this will define the sizes of the pentagons and hexagons).
    *   The **thickness** of the maze walls.
    *   A **spacing** parameter to control the gap between the pentagons and hexagons on the soccer ball.
     *   The number of **rows** and **columns** to be used in the maze.

5.  **Libraries:** I'm not sure if any particular libraries are needed for this, but I'm happy to install any required ones. I'm primarily looking for a pure OpenSCAD implementation, so I don't want external data loading or anything like that.

Essentially, I want to be able to specify the height of the soccer ball, the maze complexity, and which faces will have the maze on it, and then have OpenSCAD spit out the STL files. Can you help with that?

[Assistant]
maze_soccer_polyhedron.scad:
```
height = 50;
maze_in = "hexagon"; // [pentagon, hexagon, both]

// give a [x, y] point and length. draw a line in the x direction
module x_line(point, length, thickness = 1) {
    offset = thickness / 2;
    translate([point[0] - offset, point[1] - offset, 0])
        square([length + thickness, thickness]);
}

/*
 * constants, for clearness
 *
 */

// random directions, for picking up a direction to visit the next block
function PERMUTATION_OF_FOUR() = [
    [1, 2, 3, 4],
    [1, 2, 4, 3],
    [1, 3, 2, 4],
    [1, 3, 4, 2],
    [1, 4, 2, 3],
    [1, 4, 3, 2],
    [2, 1, 3, 4],
    [2, 1, 4, 3],
    [2, 3, 1, 4],
    [2, 3, 4, 1],
    [2, 4, 1, 3],
    [2, 4, 3, 1],
    [3, 1, 2, 4],
    [3, 1, 4, 2],
    [3, 2, 1, 4],
    [3, 2, 4, 1],
    [3, 4, 1, 2],
    [3, 4, 2, 1],
    [4, 1, 2, 3],
    [4, 1, 3, 2],
    [4, 2, 1, 3],
    [4, 2, 3, 1],
    [4, 3, 1, 2],
    [4, 3, 2, 1]
];

function NO_WALL() = 0;
function UP_WALL() = 1;
function RIGHT_WALL() = 2;
function UP_RIGHT_WALL() = 3;

function NOT_VISITED() = 0;
function VISITED() = 1;

/*
 * modules for creating a maze
 *
 */

// create the outer wall of maze
module maze_outer_wall(rows, columns, block_width = 5, wall_thickness = 1) {
    x_line([0, rows * block_width], columns * block_width, wall_thickness);
    y_line([0, block_width], (rows - 1) * block_width, wall_thickness);
}

// create the inner wall of maze
module maze_inner_wall(maze, block_width = 5, wall_thickness = 1) {
    for(i = [0:len(maze) - 1]) {
        cord = maze[i];
        x = (cord[0] - 1) * block_width;
        y = (cord[1] - 1) * block_width;
        v = cord[3];

        if(v == 1 || v == 3) {
            x_line([x, y], block_width, wall_thickness);
        }
        if(v == 2 || v == 3) {
            y_line([x + block_width, y], block_width, wall_thickness);
        }
    }
}

// create a maze
module maze(rows, columns, maze_vector, block_width = 5, wall_thickness = 1) {
     maze_outer_wall(rows, columns, block_width, wall_thickness);
     maze_inner_wall(maze_vector, block_width, wall_thickness);
}

/*
 * utilities functions
 *
 */

// comare the equality of [x1, y1] and [x2, y2]
function cord_equals(cord1, cord2) = cord1 == cord2;

// is the point visited?
function not_visited(cord, vs, index = 0) =
    index == len(vs) ? true :
        (cord_equals([vs[index][0], vs[index][1]], cord) && vs[index][2] == 1 ? false :
            not_visited(cord, vs, index + 1));

// pick a direction randomly
function rand_dirs() =
    PERMUTATION_OF_FOUR()[round(rands(0, 24, 1)[0])];

// replace v1 in the vector with v2
function replace(v1, v2, vs) =
    [for(i = [0:len(vs) - 1]) vs[i] == v1 ? v2 : vs[i]];

/*
 * functions for generating a maze vector
 *
 */

// initialize a maze
function init_maze(rows, columns) =
    [
	    for(c = [1 : columns])
	        for(r = [1 : rows])
		        [c, r, 0,  UP_RIGHT_WALL()]
	];

// find a vector in the maze vector
function find(i, j, maze_vector, index = 0) =
    index == len(maze_vector) ? [] : (
        cord_equals([i, j], [maze_vector[index][0], maze_vector[index][1]]) ? maze_vector[index] : find(i, j, maze_vector, index + 1)
    );

////
// NO_WALL = 0;
// UP_WALL = 1;
// RIGHT_WALL = 2;
// UP_RIGHT_WALL = 3;
function delete_right_wall(original_block) =
    original_block == NO_WALL() || original_block == RIGHT_WALL() ? NO_WALL() : UP_WALL();

function delete_up_wall(original_block) =
    (original_block == NO_WALL() || original_block == UP_WALL()) ? NO_WALL() : RIGHT_WALL();

function delete_right_wall_of(vs, is_visited, maze_vector) =
    replace(vs, [vs[0], vs[1] , is_visited, delete_right_wall(vs[3])] ,maze_vector);

function delete_up_wall_of(vs, is_visited, maze_vector) =
    replace(vs, [vs[0], vs[1] , is_visited, delete_up_wall(vs[3])] ,maze_vector);

function go_right(i, j, rows, columns, maze_vector) =
    go_maze(i + 1, j, rows, columns, delete_right_wall_of(find(i, j, maze_vector), VISITED(), maze_vector));

function go_up(i, j, rows, columns, maze_vector) =
    go_maze(i, j - 1, rows, columns, delete_up_wall_of(find(i, j, maze_vector), VISITED(), maze_vector));

function visit(v, maze_vector) =
    replace(v, [v[0], v[1], VISITED(), v[3]], maze_vector);

function go_left(i, j, rows, columns, maze_vector) =
    go_maze(i - 1, j, rows, columns, delete_right_wall_of(find(i - 1, j, maze_vector), NOT_VISITED(), maze_vector));

function go_down(i, j, rows, columns, maze_vector) =
    go_maze(i, j + 1, rows, columns, delete_up_wall_of(find(i, j + 1, maze_vector), NOT_VISITED(), maze_vector));

function go_maze(i, j, rows, columns, maze_vector) =
    look_around(i, j, rand_dirs(), rows, columns, visit(find(i, j, maze_vector), maze_vector));

function look_around(i, j, dirs, rows, columns, maze_vector, index = 0) =
    index == 4 ? maze_vector :
        look_around(
            i, j, dirs,
            rows, columns,
            build_wall(i, j, dirs[index], rows, columns, maze_vector),
            index + 1
        );

function build_wall(i, j, n, rows, columns, maze_vector) =
    n == 1 && i != columns && not_visited([i + 1, j], maze_vector) ? go_right(i, j, rows, columns, maze_vector) : (
        n == 2 && j != 1 && not_visited([i, j - 1], maze_vector) ? go_up(i, j, rows, columns, maze_vector)  : (
            n == 3 && i != 1 && not_visited([i - 1, j], maze_vector) ? go_left(i, j,rows, columns,  maze_vector)  : (
                n == 4 && j != rows && not_visited([i, j + 1], maze_vector) ? go_down(i, j, rows, columns, maze_vector) : maze_vector
            )
        )
    );

module ring_regular_polygon(radius, thickness, sides) {
    difference() {
	    offset(delta = thickness) circle(radius, $fn = sides);
        circle(radius, $fn = sides);
	}
}

module ring_regular_polygon_sector(radius, angle, thickness, width, sides) {
	intersection() {
		ring_regular_polygon(radius - 0.1, thickness + 0.2, sides);
		rotate([0, 0, angle]) x_line([0, 0], radius * 3, width);
	}
}

module regular_polygon_to_polygon_wall(radius, length, angle, thickness, sides) {
    intersection() {
        difference() {
		    circle(radius + length, $fn = sides);
			circle(radius, $fn = sides);
	    }
	    rotate([0, 0, angle])
		    x_line([0, 0], (radius + length) * 2, thickness);
	}
}

module regular_polygon_maze(radius, cblocks, levels, thickness = 1, sides) {
    full_circle_angle = 360;
    arc_angle = full_circle_angle / cblocks;
	r = radius / (levels + 1);

	maze = go_maze(1, 1, cblocks, levels, replace([levels, cblocks - 1, 0, UP_RIGHT_WALL()], [levels, cblocks - 1, 0, UP_WALL()], init_maze(cblocks, levels)));

	difference() {
		 union() {
			for(i = [1 : levels + 1]) {
			    ring_regular_polygon(r * i, thickness, sides);
			}

			for(i = [0:len(maze) - 1]) {
				cord = maze[i];
				cr = cord[0];
				cc = cord[1] - 1;
				v = cord[3];

				angle = cc * arc_angle;

				if(v == 1 || v == 3) {
				    regular_polygon_to_polygon_wall(r * cr, r, cc * arc_angle , thickness, sides);
				}
			}
	    }

		 union() {
		    // maze entry
			ring_regular_polygon_sector(r, arc_angle / 1.975 , thickness, r / 3, sides);

	        // road to the next level
			for(i = [0:len(maze) - 1]) {
				cord = maze[i];
				cr = cord[0];
				cc = cord[1] - 1;
				v = cord[3];

				if(v == 0 || v == 1) {

				    ring_regular_polygon_sector(r * (cr + 1), (cc + 0.5) * arc_angle , thickness, r / 3 , sides);
				}
			}
		}
	}
}

// create a generalized pentagon by length.
// Parameters:
//     length : the side length
//     spacing : the gap between a pentagon or a hexagon
module generalized_pentagon(length, spacing = 0.5) {
    r = 0.5 * length / sin(36);
	s = (r - spacing / 2) / r;

    color("yellow")
	    rotate(18)
		     linear_extrude(length, scale = 1.42215)
		        scale([s, s, s])
			        children();
}

// create a generalized hexagon by length.
// Parameters:
//     length : the side length
//     spacing : the gap between a pentagon or a hexagon
module generalized_hexagon(length, spacing = 0.5) {
    r = 0.5 * length / sin(30);
	s = (r - spacing / 2) / r;

    color("white")
	     linear_extrude(length - length * 0.02125, scale = 1.42215)
		    scale([s, s, s])
		        children();
}

// two generalized pentagons and two generalized hexagons.
// Parameters:
//     length : the side length
//     spacing : the gap between the pentagon and hexagon
module generalized_pentagon_based_sub_comp(length, spacing = 0.5) {
	pentagon_circle_r = 0.5 * length / sin(36);

	a = 37.325;

	offset_y = 0.5 * length * tan(54) + pentagon_circle_r * cos(a);
	offset_z = 0.5 * length * tan(60) * sin(a);

	translate([0, -offset_y, -offset_z])
	    rotate([a, 0, 0])
		    generalized_hexagon_based_sub_comp(length, spacing) {
			    children(0);
				children(1);
			}
}

// two generalized hexagons and one generalized pentagon.
// Parameters:
//     length : the side length
//     spacing : the gap between the pentagon and hexagon
module generalized_hexagon_based_sub_comp(length, spacing = 0.5) {
    children(1);

	length_center_to_side = 0.5 * length * tan(54);

    a = -37.325;

	offset_y = 0.5 * length * (tan(54) * cos(a) + tan(60));
	offset_z = length_center_to_side * sin(a);

	rotate(120) translate([0, offset_y, offset_z])
	    rotate([a, 0, 0])
	        generalized_pentagon_hexagon(length, spacing) {
			    children(0);
			    children(1);
			}

}

// a generalized pentagon and a generalized hexagon.
// Parameters:
//     length : the side length
//     spacing : the gap between the pentagon and hexagon
module generalized_pentagon_hexagon(length, spacing = 0.5) {
	pentagon_circle_r = 0.5 * length / sin(36);

	children(0);

	a = 37.325;

	offset_y = 0.5 * length * tan(54) + pentagon_circle_r * cos(a);
	offset_z = 0.5 * length * tan(60) * sin(a);

	rotate(144) translate([0, -offset_y, -offset_z])
	    rotate([a, 0, 0])
		    children(1);
}

// a half of generalized soccer polyhedron.
// Parameters:
//     line_length : the side length of pentagons and hexagons
//     spacing : the gap between the pentagon and hexagon
module generalized_half_soccer_polyhedron(line_length, spacing = 0.5) {
	pentagon_circle_r = 0.5 * line_length / sin(36);
	offset_y = pentagon_circle_r * cos(36);

	children(0);

	for(i = [0:4]) {
		rotate(72 * i)
		    generalized_pentagon_based_sub_comp(line_length, spacing) {
			    children(0);
				children(1);
			}
	}
}

// a generalized soccer polyhedron.
// Parameters:
//     line_length : the side length of pentagons and hexagons
//     spacing : the gap between the pentagon and hexagon
//     center : center it or not
module generalized_soccer_polyhedron(height, spacing = 0.5, center = true) {
    line_length = height / 6.65;

	offset_for_center = center ? height / 2: 0;

	translate([0, 0, -offset_for_center]) union() {
		translate([0, 0, -line_length + line_length * 6.64875])
		    generalized_half_soccer_polyhedron(line_length, spacing) {
			    generalized_pentagon(line_length, spacing) children(0);
			    generalized_hexagon(line_length, spacing) children(1);
			}

		rotate(36) mirror([0, 0, 1]) translate([0, 0, -line_length])
		    generalized_half_soccer_polyhedron(line_length, spacing) {
			    generalized_pentagon(line_length, spacing) children(0);
			    generalized_hexagon(line_length, spacing) children(1);
			}
	}
}

// create a pentagon according the height of the soccer polyhedron
module pentagon_for_soccer_polyhedron(height) {
    line_length = height / 6.65;
    circle(0.5 * line_length / sin(36), $fn = 5);
}

// create a hexagon according the height of the soccer polyhedron
module hexagon_for_soccer_polyhedron(height) {
    line_length = height / 6.65;
    circle(0.5 * line_length / sin(30), $fn = 6);
}

// create a pentagon according the height of the soccer polyhedron
module pentagon_maze_for_soccer_polyhedron(height) {
	wall_thickness = 0.68;
	radius_of_circle_wrapper = 0.5 * height / 6.6 / sin(36) - wall_thickness;

	cblocks = 6;
	levels = 3;
	sides = 5;

	regular_polygon_maze(radius_of_circle_wrapper, cblocks, levels, wall_thickness, sides);
}

// create a hexagon according the height of the soccer polyhedron
module hexagon_maze_for_soccer_polyhedron(height) {
	wall_thickness = 0.68;
	radius_of_circle_wrapper = 0.5 * height / 6.6 / sin(30) - wall_thickness;

	cblocks = 6;
	levels = 3;
	sides = 6;

	regular_polygon_maze(radius_of_circle_wrapper, cblocks, levels, wall_thickness, sides);
}

module maze_soccer_polyhedron(height, maze_in) {
    spacing = 1;

	sphere(height / 2 - 1);

    if(maze_in == "pentagon"){
		generalized_soccer_polyhedron(height, spacing) {
			pentagon_maze_for_soccer_polyhedron(height);
			hexagon_for_soccer_polyhedron(height);
		}
	} else if(maze_in == "hexagon"){
		generalized_soccer_polyhedron(height, spacing) {
			pentagon_for_soccer_polyhedron(height);
			hexagon_maze_for_soccer_polyhedron(height);
		}
	} else if(maze_in == "both") {
		generalized_soccer_polyhedron(height, spacing) {
			pentagon_maze_for_soccer_polyhedron(height);
			hexagon_maze_for_soccer_polyhedron(height);
		}
	}
}

maze_soccer_polyhedron(height, maze_in);

```


[User]
I need a customizable bracket for a 3D printer endstop. I've got a basic idea of what I need, and I think a parametric design in OpenSCAD would be best. I want two main parts to it, kinda like an "L" shape.

The first part, let's call it "Side 1," will be mounted to the printer frame. I need to control the length of this part, and the spacing and diameter of the mounting holes.

The other part, "Side 2," will hold the endstop itself. It also needs to have a length parameter, as well as mounting hole spacing and diameter. These mounting holes will be recessed into the bracket with a cylindrical hull on either side of the bracket. I'll need to specify where this recessed area on Side 2 should start and end.

For the overall bracket, I need to be able to specify its thickness and width.

Essentially, I need the following customizable parameters:

*   **Overall Dimensions:**
    *   `thickness`: The thickness of the entire bracket.
    *   `width`: The width of the bracket.
*   **Side 1 Dimensions:**
    *   `L1`: Length of the frame mounting part (Side 1).
    *   `frame_bolt_space`: Distance between the centers of the mounting holes on Side 1.
    *   `frame_bolt_d`: Diameter of the mounting holes on Side 1 (including some margin for printed parts).
*   **Side 2 Dimensions:**
    *   `L2`: Length of the endstop mounting part (Side 2).
    *   `endstop_bolt_space`: Distance between the centers of the mounting holes on Side 2.
    *   `endstop_bolt_d`: Diameter of the mounting holes on Side 2.
    *   `endstop_mount_start`: The starting position of the recessed mounting area on Side 2.
    *   `endstop_mount_end`: The ending position of the recessed mounting area on Side 2.

Could you generate the necessary OpenSCAD file for me? I'm not particularly concerned about which OpenSCAD libraries you use, but I would prefer not to rely on a huge number of them unless absolutely necessary.

[Assistant]
Customizable_endstop_bracket_v1_0.scad:
```
// Customizable endstop bracket by Cees Moerkerken
// http://www.thingiverse.com/thing:1523711
// v1.0 - 27-04-2016
// preview[view:north, tilt:top]

//CUSTOMIZER VARIABLES

/* [General_dimensions] */
// Thickness of the bracket in mm
thickness=2;
// Width of the bracket
width=20;

/* [Side1_dimensions] */
// Length of the part
L1=20;
// Distance between the center of the bolts
frame_bolt_space=10;
// Bolt diameter incl margin (m3 = 3.2mm printed)
frame_bolt_d=3.2;// [2.2,3.2,4.2,5.2,6.2]

/* [Side2_dimensions] */
// Length of the part
L2=30;
// Distance between the center of the bolts
endstop_bolt_space=10;
// Bolt diameter
endstop_bolt_d=2.2;
// Start of the endstop bolt hull on Side 2
endstop_mount_start=15;// [3:45]
// End of the endstop bolt hull on Side 2
endstop_mount_end=25;// [3:45]

//CUSTOMIZER VARIABLES END

/* [Hidden] */
$fn=60;

difference(){
    translate([2,2,0])minkowski(){
        cube([width-4,L1-4,thickness/2]);
        cylinder(r=2,h=thickness/2);
    }
    translate([width/2-frame_bolt_space/2,L1/2,-.1])cylinder(d=frame_bolt_d,h=thickness+.2);
    translate([width/2+frame_bolt_space/2,L1/2,-.1])cylinder(d=frame_bolt_d,h=thickness+.2);
}
difference(){
    translate([2,thickness/2,2])minkowski(){
        cube([width-4,thickness/2,L2-4]);
        rotate([90,0,0])cylinder(r=2,h=thickness/2);
    }
    hull(){
        translate([width/2-endstop_bolt_space/2,thickness+.1,endstop_mount_start])rotate([90,0,0])cylinder(d=endstop_bolt_d, h=thickness+.2);
        translate([width/2-endstop_bolt_space/2,thickness+.1,endstop_mount_end])rotate([90,0,0])cylinder(d=endstop_bolt_d, h=thickness+.2);
    }
    hull(){
        translate([width/2+endstop_bolt_space/2,thickness+.1,endstop_mount_start])rotate([90,0,0])cylinder(d=endstop_bolt_d, h=thickness+.2);
        translate([width/2+endstop_bolt_space/2,thickness+.1,endstop_mount_end])rotate([90,0,0])cylinder(d=endstop_bolt_d, h=thickness+.2);
    }
}

```


[User] I'd like to create a customized ring with a name embossed on the outside. The ring should be parametric, so I can easily change the finger diameter and the text. I’d like the text to be bold and italic. I'm thinking a ring with an inner diameter of 13mm and a wall thickness of 2mm to start. The initial text would be "Montserrat," and I’d prefer to use Liberation Sans, in bold italic style, for the font. Can you please generate the OpenSCAD code for this?

[Assistant]
Anillo_Personalizado.scad:
```
DiametroDedo=15;
Pared=2;
Text="Montserrat";
text(Text, font = "Liberation Sans:style=Bold Italic");
```


[User]
I need a parametric battery box generator in OpenSCAD. I'm looking for something that can handle both AA and 18650 batteries, and lets me easily specify the number of cells. It also needs to handle both series and parallel connections. And I want the option of including mounting flanges, or not.

Here are the specific parameters I'd like to control:

*   `Cell_Count`: The number of cells the box should hold.
*   `Cell_Long`: The length of a single cell, like 50.5mm for an AA battery or 65mm for an 18650.
*   `Cell_Wide`: The diameter of the cell, 14.5mm for AA or 18mm for 18650.
*   `Connection`: To choose between series (1) or parallel (2) connections.
*   `mounting_flanges`: A boolean (1 for yes, 2 for no) to turn mounting flanges on or off.

The generated box should have cylindrical cradles to hold the batteries, with cutouts for the battery terminals and springs. It should also have a space on the bottom for wires to exit the box. Ideally, it would have some "+" and "-" markings near each cell. If mounting flanges are on, I'd like to have circular mounting holes on the ends. Finally, I want rounded edges where the top and bottom of the case meet.

I'm not attached to the exact internal structure of the battery cradles you see in my example SCAD, but the general functionality and features I listed should be in the output. The output should also be a single .scad file.

[Assistant]
Battery_box_for_18650_cells.scad:
```
/*
 * Variables for Thingiverse Customizer
 * ==================================================================
 *
 */

// The number of cells in your battery holder
Cell_Count = 2;
// AA:50.5;18650:65
Cell_Long = 65;
// AA:14.5;18650:18
Cell_Wide = 18;
// 1:series connection; 2:parallel connection
Connection = 1;
// 1:yes; 2:no
mounting_flanges = 1;

/*
 * Library function: edge
 * ==================================================================
 *
 * Used to make roundes edges on objects
 *
 */
module edge(radius, height)
{
	difference()
	{
		translate([radius/2-0.5, radius/2-0.5, 0])
			cube([radius+1, radius+1, height], center = true);

		translate([radius, radius, 0])
			cylinder(h = height+1, r1 = radius, r2 = radius, center = true, $fn = 100);
	}
}

module battery_box(cells)
{
	difference()
	{
		union()
		{
			translate([0, 0, Cell_Wide*(4/3)/4])
				cube(size=[Cell_Long+7+7, Cell_Wide*cells, Cell_Wide*(4/3)/2], center=true);

			translate([Cell_Long/2+5.5, 0, Cell_Wide*(4/3)/2])
				cube(size=[3, Cell_Wide*cells, Cell_Wide*(4/3)], center=true);

			translate([-(Cell_Long/2+5.5), 0, Cell_Wide*(4/3)/2])
				cube(size=[3, Cell_Wide*cells, Cell_Wide*(4/3)], center=true);

			translate([-(Cell_Long/2+5-2), 0, Cell_Wide*0.8/2+Cell_Wide*(4/3)/4])
				cube(size=[2, Cell_Wide*cells, Cell_Wide*0.7], center=true);

			translate([(Cell_Long/2+5-2), 0, Cell_Wide*0.8/2+Cell_Wide*(4/3)/4])
				cube(size=[2, Cell_Wide*cells, Cell_Wide*0.7], center=true);

			// mounting flanges
            if (mounting_flanges == 1)
            {
			translate([20, cells*Cell_Wide/2+4/2, 3/2])
				cube(size=[7, 4, 3], center=true);

			translate([20, cells*Cell_Wide/2+4, 3/2])
				cylinder(r=7/2, h=3, center=true, $fn = 60);

			translate([-20, cells*Cell_Wide/2+4/2, 3/2])
				cube(size=[7, 4, 3], center=true);

			translate([-20, cells*Cell_Wide/2+4, 3/2])
				cylinder(r=7/2, h=3, center=true, $fn = 60);

			translate([20, -(cells*Cell_Wide/2+4/2), 3/2])
				cube(size=[7, 4, 3], center=true);

			translate([20, -(cells*Cell_Wide/2+4), 3/2])
				cylinder(r=7/2, h=3, center=true, $fn = 60);

			translate([-20, -(cells*Cell_Wide/2+4/2), 3/2])
				cube(size=[7, 4, 3], center=true);

			translate([-20, -(cells*Cell_Wide/2+4), 3/2])
				cylinder(r=7/2, h=3, center=true, $fn = 60);
		}
    }

        if (mounting_flanges == 2)
        {

        }

		for (i=[0:cells-1])
		{
			// battery cradle
			translate([0, -cells*Cell_Wide/2+Cell_Wide/2+Cell_Wide*i, Cell_Wide/2+10/2])
			rotate(90, [0, 1, 0])
				cylinder(r=Cell_Wide/2, h=Cell_Long+2+2, center=true, $fn = 100);

			// spring cut-out
			translate([Cell_Long/2+3, -cells*Cell_Wide/2+Cell_Wide/2+Cell_Wide*i, Cell_Wide/2+10/2])
				cube(size=[1, 12, 12], center=true);

            translate([Cell_Long/2+3, -cells*Cell_Wide/2+Cell_Wide/2+Cell_Wide*i, Cell_Wide/2+10/2])
				cube(size=[1, 4, 30], center=true);

            translate([Cell_Long/2+3-1/2, -cells*Cell_Wide/2+Cell_Wide/2+Cell_Wide*i, Cell_Wide/2+10/2])
				cube(size=[1, 8, 12], center=true);

			translate([-(Cell_Long/2+3), -cells*Cell_Wide/2+Cell_Wide/2+Cell_Wide*i, Cell_Wide/2+10/2])
				cube(size=[1, 12, 12], center=true);

            translate([-(Cell_Long/2+3), -cells*Cell_Wide/2+Cell_Wide/2+Cell_Wide*i, Cell_Wide/2+10/2])
				cube(size=[1, 4, 30], center=true);

            translate([-(Cell_Long/2+3-1/2), -cells*Cell_Wide/2+Cell_Wide/2+Cell_Wide*i, Cell_Wide/2+10/2])
				cube(size=[1, 8, 12], center=true);

			// solder flange cut-out
			translate([(Cell_Long/2+5-6/2), -cells*Cell_Wide/2+Cell_Wide/2+Cell_Wide*i, 3/2])
				cube(size=[6, 6, 3.1], center=true);

			translate([(Cell_Long/2)-1/2, -cells*Cell_Wide/2+Cell_Wide/2+Cell_Wide*i, 3/2])
				cylinder(r=6/2, h=3.1, center=true, $fn = Cell_Long);

			translate([-(Cell_Long/2+5-6/2), -cells*Cell_Wide/2+Cell_Wide/2+Cell_Wide*i, 3/2])
				cube(size=[6, 6, 3.1], center=true);

			translate([-(Cell_Long/2)+1/2, -cells*Cell_Wide/2+Cell_Wide/2+Cell_Wide*i, 3/2])
				cylinder(r=6/2, h=3.1, center=true, $fn = Cell_Long);

			// polarity marking (+)
			translate([20, -cells*Cell_Wide/2+Cell_Wide/2+Cell_Wide*i, 4/2+4.5])
				cube(size=[6, 2, 4], center=true);

			translate([20, -cells*Cell_Wide/2+Cell_Wide/2+Cell_Wide*i, 4/2+4.5])
				cube(size=[2, 6, 4], center=true);

			// polarity marking (-)
			translate([-20, -cells*Cell_Wide/2+Cell_Wide/2+Cell_Wide*i, 4/2+4.5])
				cube(size=[6, 2, 4], center=true);
		}

		if (cells>=2)
		{
			for (i=[0:cells-2])
			{
				// bottom cut-out for cell connections
				if (Connection == 1)
				{
					translate([0, -cells*Cell_Wide/2+Cell_Wide+Cell_Wide*i, 2.5/2])
					rotate(17, [0, 0, 1])
						cube(size=[Cell_Long, 2, 2.6], center=true);
				}

				if (Connection == 2)
				{
					translate([Cell_Long/2+3, -cells*Cell_Wide/2+Cell_Wide+Cell_Wide*i, 2.5/2])
					rotate(90, [0, 0, 1])
						cube(size=[Cell_Wide, 2, 2.6], center=true);

					translate([-Cell_Long/2-3, -cells*Cell_Wide/2+Cell_Wide+Cell_Wide*i, 2.5/2])
					rotate(90, [0, 0, 1])
						cube(size=[Cell_Wide, 2, 2.6], center=true);
				}
			}
		}

		// bottom cut-out for output wires
		translate([Cell_Long/4, -cells*Cell_Wide/2+Cell_Wide/2+Cell_Wide*0, 2.5/2])
			cube(size=[Cell_Long/2, 2, 2.6], center=true);

		translate([3/2, -cells*Cell_Wide/2+Cell_Wide/2+Cell_Wide*0+1, 2.5/2])
			edge(4, 2.6);

		translate([3/2, -cells*Cell_Wide/2+Cell_Wide/2+Cell_Wide*0-1, 2.5/2])
		rotate(-90, [0, 0, 1])
			edge(4, 2.6);

		translate([-Cell_Long/4, -cells*Cell_Wide/2+Cell_Wide/2+Cell_Wide*(cells-1), 2.5/2])
			cube(size=[Cell_Long/2, 2, 2.6], center=true);

		translate([-3/2, -cells*Cell_Wide/2+Cell_Wide/2+Cell_Wide*(cells-1)+1, 2.5/2])
		rotate(90, [0, 0, 1])
			edge(4, 2.6);

		translate([-3/2, -cells*Cell_Wide/2+Cell_Wide/2+Cell_Wide*(cells-1)-1, 2.5/2])
		rotate(180, [0, 0, 1])
			edge(4, 2.6);

		// bottom polarity marking (+)
		translate([7, -cells*Cell_Wide/2+Cell_Wide/2+Cell_Wide*0-4.5, 1.5/2])
			cube(size=[4, 1.5, 1.6], center=true);

		translate([7, -cells*Cell_Wide/2+Cell_Wide/2+Cell_Wide*0-4.5, 1.5/2])
			cube(size=[1.5, 4, 1.6], center=true);

		// bottom polarity marking (-)
		translate([-7, -cells*Cell_Wide/2+Cell_Wide/2+Cell_Wide*(cells-1)+4.5, 1.5/2])
			cube(size=[4, 1.5, 1.6], center=true);

		// mounting holes
		translate([20, cells*Cell_Wide/2+4, 3/2])
			cylinder(r=3.3/2, h=4, center=true, $fn = 30);

		translate([-20, cells*Cell_Wide/2+4, 3/2])
			cylinder(r=3.3/2, h=4, center=true, $fn = 30);

		translate([20, -(cells*Cell_Wide/2+4), 3/2])
			cylinder(r=3.3/2, h=4, center=true, $fn = 30);

		translate([-20, -(cells*Cell_Wide/2+4), 3/2])
			cylinder(r=3.3/2, h=4, center=true, $fn = 30);

		// bottom cut-out for output wire
		translate([0, 0, 2.5/2])
			cube(size=[3, cells*Cell_Wide+5, 2.6], center=true);

		// cutout to ease battery removal
		translate([0, 0, 20/2+10/2])
		rotate(90, [1, 0, 0])
			cylinder(r=20/2, h=cells*Cell_Wide+5, center=true, $fn = 100);

		// rounded corners on end plates
		translate([0, -cells*Cell_Wide/2, Cell_Wide*(4/3)])
		rotate(90, [0, 1, 0])
			edge(4, Cell_Long+8+8+5);

		translate([0, cells*Cell_Wide/2, Cell_Wide*(4/3)])
		rotate(90, [0, 1, 0])
		rotate(-90, [0, 0, 1])
			edge(4, Cell_Long+8+8+5);

		translate([0, -cells*Cell_Wide/2, Cell_Wide*(4/3)*0.95-3])
		rotate(90, [0, 1, 0])
			edge(3, Cell_Long+4+4);

		translate([0, cells*Cell_Wide/2, Cell_Wide*(4/3)*0.95-3])
		rotate(90, [0, 1, 0])
		rotate(-90, [0, 0, 1])
			edge(3, Cell_Long+4+4);
	}
}

battery_box(Cell_Count);
```


[User]
I'm looking to design a case for a Raspberry Pi 3 Model B, and I'd like it to be parametric so I can tweak it for different needs. I've got some specific ideas about the features and how I want it to fit together. I think having a couple files would help organize everything, one for the main case parameters and then another file to handle the actual geometry.

First off, the main parameters file should include the overall board dimensions. The Raspberry Pi 3 board is 85.0mm x 56.0mm x 1.5mm thick. It should also have parameters for the mounting hole locations, diameter (2.75mm), and countersink head diameter (6.2mm).  I'd like these mounting holes to be in the same relative spots as on the official Pi board, so maybe some variables for offsets from the board center. Also, I want to add a breakaway feature to the design - that is, I will add small hidden pegs so the screw holes can be broken out later when they are needed (0.3mm). The case has to fit to the board so have parameters for distance the pcb board is above the floor (4mm) and height below the top case lid (17.0mm), not including the case walls.

I'll also need parameters for the various connectors. This includes dimensions and positions for:

*   The SD card slot (card measures 11mm)
*   Ethernet port (contact width of 16mm)
*   USB ports (contact width of 13.5mm) - I'd like to be able to specify individual positions for each.
*   Power plug (width 11.0mm, height 4.5mm) and power socket(width 8.0mm, height 3.3mm) .
*   HDMI port (contact width of 15.2mm, plug is 25.0 wide).
*   Audio jack (radius of 7.0mm).

For the LEDs I need parameters for the position on the pcb, the led positions are 8.9 and 12.9mm from the center line, led size of 2.0.

I want to be able to enable or disable certain features using parameters, such as the header plug row, the GPIO row, the camera slot and the SD card opening.

The case itself should have a wall thickness of 1.2mm, with a thinner wall of 0.4mm for the inner structure. Corners should be rounded with a radius matching the wall thickness for the base (1.2mm) and then wall + tolerance + wall for the top of the case. There should be a general tolerance parameter that I can adjust (default at 0.5mm) to loosen or tighten fit. Also I will need a snap-fit system for closing the box, that is the ridge diameter and the length(50mm). The snap-fit ridge will need to be positioned correctly for a box that encases the board. There will be a parameter to decide the width of the lip for the case walls.

The case itself should be comprised of two parts: a base and a top. The base needs to include pedestals for mounting the board and provide cutouts for the ports, as well as mounting holes for the screws. The top should fit onto the base using the snap-fit and the holes for each port, with options to enable or disable the openings for the GPIO header, camera connector, and the SD card slot.

Finally, I would like the design to be based on the middle of the PCB.

I'd like to use the standard OpenSCAD library. Could you generate the OpenSCAD code for this case in two files please?

[Assistant]
raspberry_pi_3.scad:
```
//
// raspberry pi model B+
//
// design by Egil Kvaleberg, 8 Aug 2015
// Rasoberrypi 3 adapt by Guy Sheffer 28 Apr 2016
//
// drawing of the B+ model, for referrence:
// https://www.raspberrypi.org/documentation/hardware/raspberrypi/mechanical/Raspberry-Pi-B-Plus-V1.2-Mechanical-Drawing.pdf
//
// notes:
// design origin is middle of PCB
//

part = "all"; // [ top, bottom, all, demo ]

have_plugrow = 0; // [ 1:true, 0:false ]
have_open_plugrow = 0; // [ 1:true, 0:false ]
have_camera = 0; // [ 1:true, 0:false ]
have_sdcard_support = 1; // [ 1:true, 0:false ]
have_leds = 1; // [ 1:true, 0:false ]

/* [Hidden] */
mil2mm = 0.0254;

pcb = [85.0, 56.0, 1.5]; // main board
pcb2floor = 4.0; // 3.5
pcb2roof = 17.0; // 15.7

pcbmntdia = 2.75; // mounting holes
pcbmnt1dx = pcb[0]/2 - 3.5;  //
pcbmnt1dy = 3.5 - pcb[1]/2;
pcbmnt2dx = pcb[0]/2 - 3.5 - 58.0; //
pcbmnt2dy = pcb[1]/2 - 3.5;
pcbmnthead = 6.2; // countersunk
pcbmntthreads = 2.2;
breakaway = 0.3; // have hidden hole for screw, 0 for no extra pegs

cardsy = 12.0; // card measures 11.0
cardsz = 3.1;
cardsx = 8.0; // size of internal platform
carddy = pcb[1]/2 - 28.0;
ethersy = 16.0; // ethernet contact width
ethersz = 13.5 + 0.5;
etherdy = pcb[1]/2 - 10.25;
usbsy = 13.5; // core
usbframe = 1.0; // frame
usbsz = 15.8 + 0.5;
usb1dy = pcb[1]/2 - 29.0;
usb2dy = pcb[1]/2 - 47.0;
powerpsx = 11.0; // power plug width
powerpsz = 4.5; // plug height
powerssx = 8.0; // power socket width
powerssz = 3.3; // socket height
powerdz = -1.7; // for plug
powerdx = pcb[0]/2 - 10.6; //
hdmisx = 15.2; // hdmi contact width
hdmisz = 6.2;
hdmipsx = 25.0; // typical plug
hdmipsz = 12.0;
hdmidx = pcb[0]/2 - 32.0;
audior = 7.0; // audio contact radius
audiodz = 6.0/2; // above pcb
audiodx = pcb[0]/2 -53.5;
leddx = pcb[0]/2 - 1.3;
led1dy = -8.9 + 2.4/2  + pcb[1]/2;
led2dy = -12.9 + 2.4/2 + pcb[1]/2 - 0.2;
leddia = 2.0;
// BUG: fine tune, maybe add slot out of box
plugrow1 = [pcb[0]/2 - 29.0 - mil2mm*100*11, 3.5 - pcb[1]/2, 0]; // coordinates D7 pin, mid

cam_box = 34.5;

frame_w = 2.5; // width of lip for frame
snap_dia = 1.8; // snap lock ridge diameter
snap_len = 50.0; // snap lock length
tol = 0.5; // general tolerance

wall = 1.2; // general wall thickness
thinwall = 0.4;
corner_r = wall; // casing corner radius
corner2_r = wall+tol+wall; // corners of top casing
d = 0.01;

extra_y = 0; // extra space in y

module nut(af, h) { // af is 2*r
	cylinder(r=af/2/cos(30), h=h, $fn=6);
}

module c_cube(x, y, z) {
	translate([-x/2, -y/2, 0]) cube([x, y, z]);
}

module cr_cube(x, y, z, r) {
	hull() {
		for (dx=[-1,1]) for (dy=[-1,1]) translate([dx*(x/2-r), dy*(y/2-r), 0]) cylinder(r=r, h=z, $fn=20);
	}
}

module cr2_cube(x, y, z, r1, r2) {
	hull() {
		for (dx=[-1,1]) for (dy=[-1,1]) translate([dx*(x/2-r1), dy*(y/2-r1), 0]) cylinder(r1=r1, r2=r2, h=z, $fn=20);
	}
}

module bottom() {
	module snap2(ex, both) {
		if (both) translate([pcb[0]/2+tol+wall+ex, -snap_len/2, wall+pcb2floor+pcb[2]-frame_w/2]) rotate([-90, 0, 0]) cylinder(r=snap_dia/2, h=snap_len, $fs=0.3);
		if (both) translate([-snap_len/2, pcb[1]/2+tol+wall, wall+pcb2floor+pcb[2]-frame_w/2]) rotate([0, 90, 0]) cylinder(r=snap_dia/2, h=snap_len, $fs=0.3);
	}
    module plugs(extra) {
        z0 = wall+pcb2floor+pcb[2];
        // card slot
        translate([pcb[0]/2 - cardsx/2, carddy, wall+pcb2floor+pcb[2]-cardsz-extra])
			c_cube(cardsx + 19.9, cardsy+2*extra, cardsz+2*extra);
        // power plug (near side)
        translate([powerdx, pcb[1]/2+2.1*wall, z0+powerdz-extra])
			c_cube(powerpsx+2*extra, 2*wall, powerpsz+2*extra+frame_w);
        // hdmi socket (near side)
        translate([hdmidx, pcb[1]/2+19.9/2-8.25/2, -extra-frame_w])
			c_cube(hdmipsx+2*extra, 8.25, hdmipsz+2*extra+frame_w);
    }
    module plugs_add() {
        z0 = wall+pcb2floor+pcb[2];
        // audio plug (near side)
        difference() /*/ color("green")*/ {
            translate([audiodx, pcb[1]/2 + 1.4*wall, z0-snap_dia/2-tol])
                c_cube(audior, 1.6*wall, audiodz+snap_dia);
            translate([audiodx, pcb[1]/2 + wall/2 - d, z0+audiodz])
                rotate([-90, 0, 0]) cylinder(r=audior/2+tol, h=1.8*wall+2*d, $fn=20);
        }
        // card slot
        if (have_sdcard_support) difference () {
            translate([pcb[0]/2 + tol + d - cardsx/2, carddy, 0])
                c_cube(cardsx, cardsy+2*tol+2*wall, wall+frame_w-tol);
            plugs(tol);
        }
    }

	module add() {
		hull () for (x = [-1, 1]) for (y = [-1, 1])
			translate([x*(pcb[0]/2+tol+wall-corner_r) + (x>0 ? extra_y : 0), y*(pcb[1]/2+tol+wall-corner_r), corner_r]) {
				sphere(r = corner_r, $fs=0.3);
				cylinder(r = corner_r, h = wall+pcb2floor+pcb[2]-corner_r, $fs=0.3);
		}
		snap2(0, true);
        rotate([0, 0, 180]) snap2(0, false);
	}
	module sub() {
        module pedestal(dx, dy, hg, dia) {
            translate([dx, dy, wall]) {
				cylinder(r = dia/2+wall, h = hg, $fs=0.2);
                // pegs through pcb mount holes
                if (breakaway > 0) translate([0, 0, hg])
                        cylinder(r = dia/2 - tol, h = pcb[2]+d, $fs=0.2);
            }
        }
        module pedestal_hole(dx, dy, hg, dia) {
            translate([dx, dy, breakaway]) {
				cylinder(r = dia/2, h = wall+hg-2*breakaway, $fs=0.2);
				cylinder(r = 1.0/2, h = wall+hg+pcb[2]+d, $fs=0.2); // needed to 'expose' internal structure so it dows not get removed
				cylinder(r1 = pcbmnthead/2 - breakaway, r2 = 0, h = pcbmnthead/2 - breakaway, $fs=0.2); // countersunk head
		    }
        }
		difference () {
			// pcb itself
			translate([-(pcb[0]/2+tol), -(pcb[1]/2+tol), wall])
				cube([2*tol+pcb[0], 2*tol+pcb[1], pcb2floor+pcb[2]+d]);
			// less pcb mount pedestals
            for (dx = [pcbmnt1dx,pcbmnt2dx]) for (dy = [pcbmnt1dy,pcbmnt2dy])
                pedestal(dx, dy, pcb2floor, pcbmntdia);
		}
		// hole for countersunk pcb mounting screws, hidden (can be broken away)
        for (dx = [pcbmnt1dx,pcbmnt2dx]) for (dy = [pcbmnt1dy,pcbmnt2dy])
            pedestal_hole(dx, dy, pcb2floor, pcbmntdia);
        plugs(tol);
	}
	difference () {
		add();
		sub();
	}
    plugs_add();

    //color("red") plugs(0);
}

// Z base is top of pcb
module top() {
	module snap2(ex, both) {
		if (both) translate([pcb[0]/2+tol+wall+ex, -snap_len/2-tol, -frame_w/2]) rotate([-90, 0, 0]) cylinder(r=snap_dia/2, h=snap_len+2*tol, $fs=0.3);
		translate([-snap_len/2-tol, pcb[1]/2+tol+wall, -frame_w/2]) rotate([0, 90, 0]) cylinder(r=snap_dia/2, h=snap_len+2*tol, $fs=0.3);
	}
    module plugs(extra) {
        module usb_plug(dy) {
            translate([-pcb[0]/2, dy, -extra-frame_w])
				c_cube(19.9, usbsy+2*extra, usbsz+2*extra+frame_w);
            translate([-pcb[0]/2 -19.9/2, dy, -extra-frame_w])
				c_cube(19.9, usbsy+2*usbframe+2*extra, usbsz+2*extra+frame_w+2*usbframe/2);
        }
        // card slot
        translate([pcb[0]/2, carddy, -cardsz-extra - 1.2]) // fudge
			c_cube(19.9, cardsy+2*extra, cardsz+2*extra);
        // power socket (near side)
        translate([powerdx, pcb[1]/2, -extra-frame_w])
			c_cube(powerssx+2*extra, 19.9, powerssz+2*extra+frame_w);
        // room for power plug
        translate([powerdx, pcb[1]/2+9.9/2+wall*1.4, -extra-frame_w])
			c_cube(powerpsx+2*extra, 9.9, powerpsz+2*extra+frame_w);
       // ether plug
        translate([-pcb[0]/2, etherdy, -extra-frame_w])
			c_cube(19.9, ethersy+2*extra, ethersz+2*extra+frame_w); // use half tol horizontally, seems to be enough
       // usb plugs
       usb_plug(usb1dy);
       usb_plug(usb2dy);
        // hdmi socket (near side)
        translate([hdmidx, pcb[1]/2, -extra-frame_w])
			c_cube(hdmisx+2*extra, 19.9, hdmisz+2*extra+frame_w);
        translate([hdmidx, pcb[1]/2+19.9/2-7.8/2, -extra-frame_w])
			c_cube(hdmipsx+2*extra, 7.8, hdmipsz+2*extra+frame_w);
        // audio plug (near side)
        translate([audiodx, pcb[1]/2 + 19.9/2, audiodz])
			rotate([90, 0, 0]) cylinder(r=audior/2+extra, h=19.9, $fn=20);
        translate([audiodx, pcb[1]/2, -extra-frame_w])
			c_cube(audior+2*extra, 19.9, audiodz+2*extra+frame_w);
        // camera opening
        if (have_camera) translate([-8.0, 0, pcb2roof - extra])
			c_cube(cam_box, cam_box, wall+2*extra);
    }

	module add() {
		hull () for (x = [-1, 1]) for (y = [-1, 1]) {
			translate([x*(pcb[0]/2+tol+wall-corner_r) + (x>0 ? extra_y : 0), y*(pcb[1]/2+tol+wall-corner_r), -frame_w])
				cylinder(r = corner_r+tol+wall, h = d, $fs=0.3); // include frame
			translate([x*(pcb[0]/2+tol+wall-corner2_r) + (x>0 ? extra_y : 0), y*(pcb[1]/2+tol+wall-corner2_r), pcb2roof+wall-corner2_r])
					sphere(r = corner2_r, $fs=0.3);
		}

	}

	module sub() {
		module plugrow_frame(xy, start, pins) {
			frmheight = 3.0;
            echo((pcb[1]/2+xy[1]));
			if (have_open_plugrow) translate([xy[0]+(start+(pins-1)/2)*2.56, xy[1]-(pcb[1]/2+xy[1]-2.56)/2, 1.0])
				c_cube(pins*2.56+2*tol+2*wall, (pcb[1]/2+xy[1]-2.56)+2*2.56+2*tol+2*wall, pcb2roof-1.0);
            else translate([xy[0]+(start+(pins-1)/2)*2.56, xy[1], frmheight])
				c_cube(pins*2.56+2*tol+2*wall, 2*2.56+2*tol+2*wall, pcb2roof-frmheight);

       }
		module plugrow_hole(xy, start, pins) {
            if (have_open_plugrow) translate([xy[0]+(start+(pins-1)/2)*2.56, xy[1]-9.9/2, -frame_w-d])
				c_cube(pins*2.56+2*tol, 2*2.56+2*tol+9.9, pcb2roof+wall+pcb[0]+frame_w);
			else translate([xy[0]+(start+(pins-1)/2)*2.56, xy[1], 0])
				c_cube(pins*2.56+2*tol, 2*2.56+2*tol, pcb2roof+wall);
        }
        module led_frame(dy) {
			frmheight = 2.0;
			translate([leddx, dy, frmheight])
				cylinder(r=leddia/2+wall, h=pcb2roof+d-frmheight, $fn=16);
        }
        module led_hole(dy) {
			translate([leddx, dy, 0])
				cylinder(r=leddia/2-d, h=pcb2roof+wall+d, $fn=16);

        }
		// room for bottom case within frame
		hull () for (x = [-1, 1]) for (y = [-1, 1])
			translate([x*(pcb[0]/2+tol+wall-corner_r) + (x>0 ? extra_y : 0), y*(pcb[1]/2+tol+wall-corner_r), -frame_w-d])
                cylinder(r = corner_r+tol, h = d+frame_w, $fs=0.3);
		// snap lock
		snap2(0, true);
		rotate([0, 0, 180]) snap2(0, false);
		difference() {
			// room for pcb
			translate([0, 0, -d]) cr_cube(2*tol+pcb[0], 2*tol+pcb[1], d+pcb2roof, 1.0);
			union () { // subtract from pcb:
				// plug rows
				if (have_plugrow || have_open_plugrow)
					plugrow_frame(plugrow1, 0, 20);
                // leds
				if (have_leds) {
					led_frame(led1dy);
                    led_frame(led2dy);
                }
                // strengthing frame around usb and ether
                translate([-pcb[0]/2, 0, tol])
				c_cube(19.9-2*d, pcb[1]+2*tol+2*d, usbsz+2*tol+frame_w);

                // pegs
                for (dx = [pcbmnt1dx,pcbmnt2dx]) for (dy = [pcbmnt1dy,pcbmnt2dy]) translate([dx, dy, 0]) {
                    cylinder(r1 = pcbmntdia/2 +wall, r2 = pcbmntdia/2 +2.5*wall, h = pcb2roof, $fs=0.2);
                }
			}

		}
        // hole for usb, ether and power
        plugs(tol);
		// plug rows
		if (have_plugrow || have_open_plugrow)
			plugrow_hole(plugrow1, 0, 20);
        // leds
		if (have_leds) {
			led_hole(led1dy);
            led_hole(led2dy);
        }
        // peg holes
        for (dx = [pcbmnt1dx,pcbmnt2dx]) for (dy = [pcbmnt1dy,pcbmnt2dy]) translate([dx, dy, 0]) {
            translate([0, 0, -d]) cylinder(r = pcbmntthreads/2, h = pcb2roof, $fs=0.2); // hole
        }
	}
	difference () {
		add();
		sub();
	}

    if (part == "demo")
        color("red") plugs(0);
}

//

if (part=="demo") { bottom(); translate([0, 0, wall+pcb2floor+pcb[2]]) top(); }
if (part=="bottom" || part=="all") translate([0, -35, 0]) bottom();
if (part=="top" || part=="all") translate([-0, 35, pcb2roof+tol+wall]) rotate([180,0,0]) top();

```


[User]
Okay, I need a parametric OpenSCAD design for bearing spacers, and I'd like it to be pretty flexible to handle different situations.

Here's what I'm thinking: the basic design is a cylindrical spacer, but I need to be able to adjust the outer diameter, inner diameter, and overall width. I'll be using these with various bearings and screws, so that's important. I'd also like to add an optional profiled shift on the inner diameter, basically a small lip extending inward. The thickness and width of this lip should be adjustable, and this should be able to be turned off too.

Crucially, I need to make provision for the screw lead that goes through the bearing; it will need to have a hole for this, but also a recess so the screw head doesn't protrude. I need the dimensions of the screw and the bearing to be parameters in the design. The screw should be optional as well, and should default to a hole with the same diameter as the bearing's inner diameter.

I'm hoping the design will incorporate the bearing width, and that I can provide it as a parameter.

Finally, I'd like to account for manufacturing tolerances, so I'd like to have a tolerance parameter to adjust how much smaller the spacer is. I would also like to adjust the mesh definition.

To summarise the design parameters I need are:

*   `outer_diameter`: The outer diameter of the spacer.
*   `inner_diameter`: The inner diameter of the spacer.
*   `spacer_width`: The overall width of the spacer (excluding any screw head recess).
*   `profil_shift_width`: The width of the profile shift as a percentage of the spacer width.
*   `profil_shift_thickness`: The thickness of the profile shift.
*   `option`: Option to enable the screw lead recess(1:yes, -1:no)
*   `bearing_width`: The width of the bearing.
*   `screw_diameter`: The diameter of the screw.
*  `tolerance`: the xy tolerance
*  `definition`: the mesh definition

Could you please create an OpenSCAD file for this design?

[Assistant]
Bearing_Spacer_001.scad:
```
/* [Spacer] */

//spacer outer diameter
outer_diameter=22;

//spacer inner diameter
inner_diameter=8;

//spacer width (including profil shift)
spacer_width=3;

//profil shift width(in % of spacer width)
profil_shift_width=0.35;//[0:0.05:1]

//profil shift thickness
profil_shift_thickness=2;

/* [Optional Screw Lead] */
//Set option
option=1; //[1:yes,-1:no]

//bearing width
bearing_width=7;

//screw diameter
screw_diameter=4;

/* [Fine Tunning] */
//tolerance (XY compensation)
tolerance=0.1;

//definition
definition=100;//[50:low,100:medium,150:high]

/////////////////////
$fn=definition;

module spacer() {
difference() {
union() {
cylinder(d=outer_diameter-2*tolerance,h=spacer_width*(1 - profil_shift_width));
cylinder(d=inner_diameter + 2*profil_shift_thickness - 2*tolerance, h=spacer_width);
cylinder(d=inner_diameter - 2*tolerance, h=spacer_width + bearing_width/2 - 0.5);
}

if(option==1){
translate([0,0,-1]) cylinder(d=screw_diameter + 2*tolerance, h=spacer_width + bearing_width +2);
}
else {
translate([0,0,-1]) cylinder(d=inner_diameter + 2*tolerance, h=spacer_width + bearing_width +2);
}
}
}

spacer();

```


[User]
I'm looking to design a holder for an LED strip, and I want it to be parametric so I can easily adjust the dimensions for different projects.  I have a basic concept in mind, it's composed of two main parts: a base and a holder, and I'd like the design to be generated in OpenSCAD.

The base will be a rectangular piece with mounting holes for attaching it to a surface, and it will also have an arm that extends out to connect with the holder. The holder itself is designed to hold the LED strip, which has an "L" profile, with a space for the LED strip.

Here are the specific parameters I need to be adjustable:

**Base:**

*   `base_width`: Width of the base rectangle.
*   `base_height`: Height of the base rectangle.
*   `base_thickness`: Thickness of the base rectangle.
*   `base_arm_length`: Length of the arm extending from the base.

**Mounting Holes (in the base):**

*   `hole_diameter`: Diameter of the mounting holes.
*   `hole_border`:  Distance from the edge of the base to the center of the mounting holes.
*   `screw_hole_diameter`: Diameter of the countersunk part of the hole to fit a screw head
*   `screw_hole_depth`: Depth of the countersunk part of the screw hole.

**Holder:**

*   `holder_width`: Width of the holder.
*   `holder_height`: Height of the holder.
*   `holder_thickness`: Thickness of the holder.

**L-Profile:**

*   `profile_width`:  Width of the horizontal section of the L-profile.
*   `profile_height`: Height of the vertical section of the L-profile.
*  `profile_thickness`: Thickness of the L-profile.
*   `profile_border`: Distance from the edge of the holder to the L-profile.

**LED Strip Space:**

*   `strip_space_width`: Width of the space for the LED strip.

**General:**

* `spacing`: Used to leave spacing between holes/parts
* `$fn`:  For controlling the circle segments.

I'd like the design to be fairly precise with nice circular holes so a higher `$fn` would be preferred by default, maybe 50.

The base needs two mounting holes, one near the top and one near the bottom, and the arm should connect to the holder in a way that allows for a screw to pass through and secure the two together. The holder needs to have the L-profile to act as a sort of track for the LED strip, and needs the specified space for the LED strip itself.

Could you generate an OpenSCAD file (or files, if you think it would be better organized that way) with all of these parameters? I'm expecting a design that I can easily customize through changing these parameters. I don't need any included libraries, I want this all to be from scratch. I'm pretty excited to see what you come up with.

[Assistant]
LED_Strip_Holder_V2.scad:
```
base_width=10;
base_height=50;
base_thickness=3;
base_arm_lenght=15;

hole_diameter=4;
hole_border=3;

holder_width=25;
holder_height=20;
holder_thickness=10;

profile_width=15;
profile_height=10;
profile_thickness=1.6;
profile_border=3;

strip_space_width=11;

screw_hole_diameter=7;
screw_hole_depth=2;

spacing=0.2;
$fn=50;

Assembly();

module Assembly(){
    translate ([20,0,0]) holder();
    translate ([-20,0,0])base();
    };

module holder(){
    difference(){
        cube([holder_width,holder_height,holder_thickness],center = false);
        difference(){
            cube([hole_border+hole_diameter/2,hole_border+hole_diameter/2,holder_thickness], center=false);
            translate([hole_diameter/2+hole_border,hole_diameter/2+hole_border,0])cylinder(r=hole_diameter/2+hole_border,h=holder_thickness,center = false);
        }
        translate([holder_width-profile_width-profile_border,holder_height-profile_thickness-profile_border,0,]) cube([profile_width,profile_thickness,holder_thickness],center = false);
        translate([holder_width-profile_thickness-profile_border,holder_height-profile_height-profile_border,0,]) cube([profile_thickness,profile_height,holder_thickness],center = false);
            translate([holder_width-strip_space_width-profile_border,holder_height-profile_border,0,]) cube([strip_space_width,profile_border,holder_thickness],center = false);
        translate([hole_border+(hole_diameter/2),hole_border+(hole_diameter/2),0,]) cylinder(r=hole_diameter/2,h=holder_thickness,center = false);
        translate([hole_diameter/2+hole_border,hole_diameter/2+hole_border,holder_thickness/2])cylinder(r=hole_diameter/2+hole_border,h=holder_thickness/2,center = false);
        translate([hole_diameter/2+hole_border,0,holder_thickness/2])cube ([hole_diameter/2+hole_border,hole_diameter/2+hole_border,holder_thickness/2],center = false);
        translate([0,hole_diameter/2+hole_border,holder_thickness/2])cube ([hole_diameter/2+hole_border,hole_diameter/2+hole_border,holder_thickness/2],center = false);
        }

    };
module base(){
    union(){
/*Base*/
        difference(){
        cube([base_width,base_height,base_thickness],center = false);
/*Hole1*/
        translate([hole_diameter/2+hole_border,hole_diameter/2+hole_border,base_thickness-screw_hole_depth])cylinder(r2=screw_hole_diameter/2,r1=hole_diameter/2,h=screw_hole_depth,center = false);
        translate([hole_diameter/2+hole_border,hole_diameter/2+hole_border,0])cylinder(r=hole_diameter/2,h=base_width/2,center = false);
/*Hole1*/
        translate([hole_diameter/2+hole_border,base_height-(hole_diameter/2+hole_border),base_thickness-screw_hole_depth])cylinder(r2=screw_hole_diameter/2,r1=hole_diameter/2,h=screw_hole_depth,center = false);
        translate([hole_diameter/2+hole_border,base_height-(hole_diameter/2+hole_border),0])cylinder(r=hole_diameter/2,h=base_width/2,center = false);
        }
/*Arm*/
        translate([base_width,base_height/2-(base_width/2),base_thickness]) rotate([0,-90,0]){
          difference(){
                cube([base_arm_lenght,base_width-spacing,hole_diameter+2*hole_border]);
              translate([base_arm_lenght-(2*hole_border+hole_diameter),0,0]) difference(){
            translate([hole_border+hole_diameter/2-spacing,0,0]) cube([hole_border+(hole_diameter/2)+2*spacing,2*hole_border+hole_diameter,base_width], center=false);
            translate([base_arm_lenght-(2*hole_border+hole_diameter),hole_diameter/2+hole_border,0])cylinder(r=hole_diameter/2+hole_border,h=holder_thickness,center = false);
        }
                translate([base_arm_lenght-(hole_border+(hole_diameter/2)),hole_border+(hole_diameter/2),0,]) cylinder(r=hole_diameter/2,h=holder_thickness,center = false);
              translate([base_arm_lenght-(hole_diameter+2*hole_border),0,holder_thickness/2])cube ([hole_diameter+2*hole_border,hole_diameter+2*hole_border,holder_thickness/2],center = false);

                };

        };
        };
    };

```


[User]
I need help designing a beam compass that will attach to a standard wooden yardstick. It should have two identical clips that slide onto the yardstick and can be fixed in place with screws or tacks. The clip should have a hole for a pen or marker, and I'd like to be able to adjust the position of that hole relative to the yardstick. I'd also like the overall clip design to be adjustable to accommodate different yardstick thicknesses and heights.

Specifically:

1.  The design should consist of two identical clips. Each clip needs to be able to slide onto a wooden yardstick (let's assume default dimensions of 28mm height and 3.7mm thickness for now) and then be secured. I am thinking a set screw.
2. The clips should include a hole that can hold a writing utensil such as a sharpie or a drywall anchor. The diameter of this hole should be adjustable.
3. The position of the marker hole relative to the edge of the yardstick should be adjustable. I'd like to control the horizontal distance (how far out it is) and vertical position.
4.  I'd like the overall design to be parametric, so that I can adjust the dimensions for different yardstick sizes (height, thickness), the size of the marker holder hole, the horizontal distance and the vertical height.
5. I think it would be useful to use the BOSL2 library to assist in the design process.

[Assistant]
BeamCompass.scad:
```
//beam compass for wooden yardstick

yh=28;
//yardstick height
yt=3.7;//thickness
th=3;//how thick theclip
cw=20;

x=[1,0,0];
y=[0,1,0];
z=[0,0,1];
$fn=80;

//

module tube(hh,ro,ri){
    difference(){
        cylinder(r=ro,h=hh,center=true);
        cylinder(r=ri,h=hh+1,center=true);
    }
}

module arc(rad,seg,thick,ht){
    difference(){
        cylinder(r=rad,h=ht,center=true);
        cylinder(r=rad+thick,h=ht+1,center=true);
    }

}
module clip() {

 translate([yh/2,cw/2+th,0])
        difference(){cube([th*2,cw,cw],center=true);
        rotate(y*90)cylinder(r=6,h=20,center=true);
            cylinder(r=1,h=30,center=true);
    }
    difference(){
        cube([yh+2*th,yt+2*th,cw],center=true);
        cube([yh+2,yt,cw+1],center=true);
        rotate(y*90)cylinder(r=1,h=100,center=true);
    }

}

clip();
```