[User]
I want to design a customizable coin sorter that can be 3D printed. I'd like to be able to create disks that stack on top of each other, each with holes for different sized coins, so that I can sort a pile of mixed change. I've got some ideas about how this could work, and I want to make sure the design is flexible enough to handle different coins.

Here are the key features I'm looking for in the OpenSCAD design:

1.  **Disk Size:** The overall diameter of the disks needs to be adjustable with some standard sizes - specifically 3 inch (75mm), 4 inch (100mm), 5 inch (125mm), and 6 inch (150mm). I'd like a variable I can easily change that lets me set one of these diameters, so I don't have to manually change radius values.

2.  **Coin Holes:** Each disk should have a set of holes around its perimeter for coins to fall through. These holes need to be parameterized by:
    *   **Coin Diameter:** The diameter of the coin hole, which should be slightly larger than the coin itself (maybe by 1-2mm) to ensure the coins can drop through.
    *   **Hole Distance from Center:** The distance of these coin holes from the center of the disk.
    *   **Number of Holes:** The number of coin holes around the disk. If set to 1, I expect only a single hole to be present, centered on the disk.

3.  **Stackability:**  The disks should stack nicely on top of each other. For that, there needs to be an outer lip around the base of the disk that is a bit smaller than the main disk diameter, so the disk above fits securely but loosely on top. I'd also like to see a small tolerance built in, maybe 0.3mm, to ensure the disks don't fit too tightly.

4.  **Disk Structure:** Each disk should have a slight angle or slope on the top edge, so the coins are guided toward the holes. The base of the disk should be flat. The disk should have a fixed height, and a fixed wall thickness that can be specified as a parameter.

5. **Variable Names**: Please use `dishDiameter`, `dishTolarnce`, `coinDiameter`, `coinDistance`, `coinAmount`, `dishHeight`, `dishAngle`, and `dishThickness` as parameter names, following the same pattern as the attached .scad file.

The goal is to have a set of functions or modules that generates a disk with the given parameters. I would also like to be able to easily adjust parameters so I can create as many unique disks as I need. I will be using these disks to stack multiple sorters, so this is a priority.

I don't want to rely on any external libraries, so please make sure this is a standalone SCAD file that doesn't import any other files.

[Assistant]
CoinSorter.scad:
```
// create outer cylinder

// size of the disk
dishDiameter = 62.5;//[37.5:3in/75mm,50:4in/100mm, 62.5:5in/125mm,75:6in/150mm]

// just in case the stack doesn't fit loosly. please try to keep at 0.3
dishTolarnce = 0.3;

// diametre of the coin. please add 1~2mm so the coin can fall through
coinDiameter = 25;
// the hole distance from the center
coinDistance = 30;
// the amount of holes in the dish
coinAmount = 6;

/* [Hidden] */

$fn = 100;
dishHeight = 40;
dishAngle = 3;
dishThickness = 3;

difference()
{
	union()
	{
		cylinder(h = dishHeight/2,r1 = dishDiameter-dishThickness, r2 = dishDiameter-dishThickness,center = false);

		translate([0,0,dishHeight/2])
			cylinder(h = dishAngle,r1 = dishDiameter-dishThickness, r2 = dishDiameter,center = false);

		translate([0,0,dishHeight/2+dishAngle])
			cylinder(h = dishHeight/2,r1 = dishDiameter, r2 = dishDiameter,center = false);
	}

	union()
	{
		translate([0,0,dishThickness])
			cylinder(h = dishHeight/2+1,r1 = dishDiameter-dishThickness*2, r2 = dishDiameter-dishThickness*2,center = false);

		translate([0,0,dishHeight/2+dishThickness])
			cylinder(h = dishHeight/2,r1 = dishDiameter+dishTolarnce-dishThickness, r2 = dishDiameter+dishTolarnce-dishThickness,center = false);

		translate([0,0,dishHeight-0.03])
			cylinder(h = dishAngle+0.06,r1 = dishDiameter-dishThickness, r2 = dishDiameter,center = false);
	}

	union()
	{
		if(coinAmount == 1)
		{
			translate([0,0,-0.11])
				cylinder(h = dishThickness+0.2,r1 = coinDiameter/2, r2 = coinDiameter/2,center = false);
		}
		else
		{
			for ( i = [0 : coinAmount])
			{
				echo (360 / coinAmount * i);
			    rotate(360 / coinAmount * i,[0, 0, 1])
			    translate([0, coinDistance, -0.1])
			    cylinder(h = dishThickness+0.2,r1 = coinDiameter/2, r2 = coinDiameter/2,center = false);
			}
		}
	}
}

```


[User]
I need a parametric OpenSCAD design for a hook, suitable for 3D printing. The hook should have a base that can be mounted, and a curved hook portion extending out from the base. I want to be able to easily change the dimensions of the base and the hook, and add a mounting hole if needed.

Specifically, here's what I'm looking for:

*   **Base:**
    *   The base should be a rectangular block.
    *   I need to be able to specify the base's width, height, and thickness as parameters.
    *   It should be rounded at all edges.
*   **Hook:**
    *   The hook should extend from the top of the base.
    *   The hook should have a curved profile, like a quarter of a cylinder or a sphere, so objects can easily slide on.
    *   I need to be able to define the distance it extends from the base.
    *    The curve should be smooth and avoid sharp edges.
*   **Mounting Hole:**
    *   I need an optional cylindrical mounting hole that I can enable/disable with a parameter.
    *   This hole should be in the base, toward the top middle.
    *   I need to be able to specify the diameter of this mounting hole.
*   **General:**
    *   Everything should be parametric, allowing me to easily change all dimensions.
    *   The code should be well-commented so it's easy to understand how to modify it.
    *   I'd like to use a reasonably high $fn for smooth curves.
    *   I don't need to import any libraries to accomplish this.

[Assistant]
Hook.scad:
```
hook_distance=15;
base_thickness=3;
base_height=30;
base_width=20;
fixing_hole=0;//[0:OFF,1:ON]
Sfn=30;

module Base()
{
resize([base_width,base_height,3])sphere(r=10,center=true,$fn=Sfn);
translate([0,0,-base_thickness/4])
{
resize([base_width,base_height,0])cylinder(base_thickness/2,r=10,center=true,$fn=Sfn);
}
}

module Hook()
{
difference() {
resize([base_width,base_height,hook_distance])sphere(r=10,center=true,$fn=Sfn);
translate([0,0,-hook_distance/2])
{
cube([base_width+1,base_height+1,hook_distance],center=true);
}
translate([0,base_height/2,hook_distance/2])
{
cube([base_width+1,base_height,hook_distance],center=true);
}

translate([0,0,-1])
{
rotate ([0,90,0])
resize([hook_distance,base_height/2,base_width])sphere (hook_distance,base_width, center = true, $fn=Sfn);
}

translate([-base_width/2-1,0,hook_distance/2])
{
resize([base_width,base_height,hook_distance])sphere(r=10,center=true,$fn=Sfn);
}
translate([base_width/2+1,0,hook_distance/2])
{
resize([base_width,base_height,hook_distance])sphere(r=10,center=true,$fn=Sfn);
}

}
}

module Hole()
{
if(fixing_hole > 0)
{
translate([0,base_height/5,1.5])
{

cylinder(base_thickness*2,d=fixing_hole,center=true,$fn=Sfn);
cylinder(h = fixing_hole, d1 = fixing_hole, d2 = fixing_hole*2, center = true,$fn=Sfn);

}
}
}

difference()
{
Base();
Hole();
}
Hook();

```


[User]
Hey, I'm looking to create a customizable LEGO Technic hub for a project, and I'd like some help with the OpenSCAD code. Basically, I want to be able to generate a ring with two concentric circles of LEGO Technic holes. The number of holes should be adjustable, and it should also be optional whether the center is left open or if it includes a cross slot for a LEGO axle.

Here's what I need:

*   **Adjustable Number of Holes:** I want to be able to specify how many holes go around the circle. I'd like to be able to set options like 8, 9, 12, 18, 24, 27, and 36, but maybe there should be an option to enter a custom number of holes as well.
*   **Center Hub Option:** I need to be able to choose whether the center of the hub is open or if there's a cross slot for an axle.
*   **Concentric Hole Circles:** The holes need to be in two concentric circles. The distance between the two circles should be based on the standard LEGO Technic pitch (8mm) and should be a multiple of that distance. The inner circle of holes needs to be sized such that a beam that is a multiple of 8mm will reach them.
*   **Standard Dimensions:** The hole diameter should be 5mm, with a 6.1mm countersink, and the countersink depth should be 0.85mm. The beam width should be 7.3mm, and beam height 7.8mm. The cross slot should be 2.1mm wide and 5.1mm long, with a 0.4mm bevel.
*   **Optional Lightening Holes:** If there are more than 9 holes, there should be four lightening holes equally spaced around the hub, between the main holes and the center. The lightening holes should use the same counter-sink / diameter as the main holes.
*   **Smoothness:** I'd like a way to control the smoothness of the curved part between the holes, like setting the `fn` value. Maybe the smoothness should also be controllable through a parameter.

So, basically I need a parametric design that will generate a LEGO Technic hub ring with options for hole count, a center hub, and the possibility of the lightening holes. I'm hoping this can be generated as one or more OpenSCAD files. I'm not looking for anything especially fancy.

Also, I'd like it if you could include a preview showing the north east top view.

I think that's it. Let me know if you have any questions!

[Assistant]
LEGO_Technic_Hub_v2.scad:
```
/*
        LEGO Technic Hub
        Steve Medwin
        March 2015
*/
$fn=50*1.0;
// preview[view:north east, tilt:top]

// constants
width = 7.3*1.0;        // beam width
height = 7.8*1.0;       // beam height
hole = 5.0/2;           // hole diameter
counter = 6.1/2;        // countersink diameter
depth = 0.85*1.0;       // countersink depth
pitch = 8.0*1.0;        // distance between holes
perAngleSmall = 20*1.0; // set smoothness of beam: cylinders between holes
slotWidth = 2.1*1.0;    // width of cross slot
slotLength = 5.1*1.0;   // length of cross slot
bevel = 0.4*1.0;        // bevel on bottom of cross

// user parameters
// number of holes =
Holes = 18;      // [8,9,12,18,24,27,36]
// include center for axle?
Hub = "yes";    // [yes,no]

// calculations
Degrees = 360/Holes;    // set degrees between holes to make a complete circle
numHoles = Holes;
angleSmall = Degrees;
Diameter = ceil(Holes/3) * pitch;     // round up so distance is multiple of pitch
radius = Diameter/2;
hubDia = (11.55/2)*(Holes/9);       // distance allows beams to span lightening holes
holeRadius = (radius - width/2 - hubDia/2)/2;

// create beam
difference()
{
    // make circle from cylinder
        cylinder(h=height, r=radius+pitch+width/2, $fn = 100);
    // subtract center
       if (Hub=="yes") { translate([0,0,height - depth]) cylinder(h=height, r=radius-width/2, $fn = 100);   }
            else { cylinder(h=height, r=radius-width/2, $fn = 100); }
    // add main holes, countersink holes and add chamfer on bottom to avoid supports
        for (i=[0:numHoles-1]) {
            rotate(a=[0,0,-i*angleSmall])
            {
                translate([0,radius,-2])
                cylinder(h=height+4, r=hole);

                translate([0,radius,0])
                cylinder(h=depth, r=counter);

                translate([0,radius,height-depth])
                cylinder(h=depth, r=counter);

                translate([0,radius,depth])
                cylinder(h=(counter - hole), r1=counter, r2=hole);
            }
        }
    // add second row of holes
        for (i=[0:numHoles-1]) {
            rotate(a=[0,0,-i*angleSmall])
            {
                translate([0,radius+pitch,-2])
                cylinder(h=height+4, r=hole);

                translate([0,radius+pitch,0])
                cylinder(h=depth, r=counter);

                translate([0,radius+pitch,height-depth])
                cylinder(h=depth, r=counter);

                translate([0,radius+pitch,depth])
                cylinder(h=(counter - hole), r1=counter, r2=hole);
            }
        }
    // subtract cross for shaft
        cube(size = [slotWidth+bevel, slotLength+bevel, depth], center = true);
        cube(size = [slotLength+bevel, slotWidth+bevel, depth], center = true);
        cube(size = [slotWidth, slotLength, height*2], center = true);
        cube(size = [slotLength, slotWidth, height*2], center = true);
   // subtract lightening holes unless only 9 holes then too small
        if (Holes > 9) {
            for (i=[0:3]) {
                rotate(a=[0,0,i*90])
                translate([holeRadius + hubDia/2,0,0])
                cylinder(h=height, r=holeRadius, $fn = 100);
            }
        }
  }

```


[User]
Hey, I'm looking for an OpenSCAD design for a parametric propeller guard for a multirotor drone. I've got some ideas on how it should work, but I need help coding it.

Basically, I need a guard that mounts to the motor using screws, has a protective cup around the base of the motor, and then has arms extending out to a circular fender that goes around the prop. Here's the breakdown of the parameters I need:

**Motor Mount:**

*   `cup_ID`: Inside diameter of the motor cup.
*   `cup_wall`: Thickness of the motor cup wall.
*   `cup_height`: Height of the motor cup wall.
*   `screwhole_sep_min`: Minimum separation between the screw hole centers. This will help define a slot instead of individual holes.
*   `screwhole_sep_max`: Maximum separation between the screw hole centers, also for the slot.
*   `screw_diam`: Diameter of the mounting screws.
*   `ang_offset`: Angle between the multirotor arm axis and the screw hole center axis. This is needed because the mounting holes may be rotated.
*   `mount_thickness`: Thickness of the base mounting plate.
*   `mount_diam`: Diameter of the base mounting plate.
*   `shaft_hole_diam`: Diameter of the central hole for motor shaft clearance.
*   `vent_width`: Width of the vent holes (if present).
*   `vent_r1`: Minimum radius of vent holes.
*  `vent_r2`: Maximum radius of the vent holes.
*   `do_vent_holes`: Boolean flag to turn vent holes on or off (1 for yes, 0 for no).

**Propeller and Arms:**

*   `prop_diam`: Diameter of the propeller.
*   `arm_dia`: Diameter of the guard arms.
*   `fender_dia`: Diameter of the fender extrusion.
*   `arm_ang_1`: Angle of the CCW-most arm (highest value, in degrees).
*   `arm_ang_2`: Angle of the middle arm (in degrees).
*  `arm_ang_3`: Angle of the CW-most arm (lowest value, in degrees).

The design should have a main central mounting disk, the "cup" that wraps around the motor, three arms extending outwards from this cup, and then the circular fender. The mounting disk should include the screw slots, vent holes and motor shaft clearance as parameters dictate. The arms should have fillets where they connect to the cup for strength and the fender should be joined to the outermost ends of the arms.

It’d be great if you could generate all the necessary .scad files for this, and I'm not looking to use any existing libraries for this project. I would prefer if it didn't try to use modules for math, it is all simple arithmetic.

Thanks!

[Assistant]
propguard_1v0.scad:
```
//
//	propguard: OpenSCAD script for generatinga multirotor propeller guard
//	Version: 1.0
//	Author: Marshall Jose (KerwoodDerby)
//	Date: 1 March 2015
//
//	This script is a first try at a reasonably parametric propeller guard model,
//	accommodating different size motors, as well as the variations in arm angles and
//	motor mount angles. The original intent was to create something to be used with
//	the T4 multirotors, such that the vent holes aligned with the ones in the T4's
//	motor arms, and things just snowballed from there. At first I thought I should make
//	a customizer for it, but then decided that would just get too complicated and hard to
//	understand. So I've just supplied it as a script.
//
//	I was pleased by the strength and light weight of the result, rendered in ABS,
//	even one made for 11" propellers.
//
//	All angles are in degrees, and all dimensions are in mm.
//
cup_ID = 29;                // Motor cup wall inside diameter
cup_wall = 1.2;             // Motor cup wall thickness
cup_height = 15;            // Motor cup wall height
screwhole_sep_min = 12;     // Minimum separation of mount hole centers (affects slot)
screwhole_sep_max = 19;     // Maximum separation of mount hole centers (affects slot)
screw_diam = 3;             // Mounting screw diameter
ang_offset = 45;            // Subtended angle between multirotor arm axis and mounting-screw-hole centerline axis
mount_thickness = 2;        // Baseplate thickness
mount_diam = 30;            // Baseplate diameter
vent_width = 1.5;           // Vent hole width
vent_r1 = 5.5;              // Vent hole minimum radius
vent_r2 = 12;               // Vent hole maximum radius
shaft_hole_diam = 6;        // Central hole diameter for shaft clearance
prop_diam = 6.1*25.4;       // Propeller diameter
arm_dia = 4;                // Fender arm diameter
fender_dia = 6;             // Fender extrusion diameter
do_vent_holes = 1;          // Flag indicating if vent holes are desired (1=yes)
arm_ang_1 = 45;             // CCW-most arm angle (highest value)
arm_ang_2 = 0;              // Middle arm angle
arm_ang_3 = -45;            // CW-most arm angle (lowest value)
//
//	Intermediate variables
//
mount_diam = cup_ID + cup_wall;
ped_height = mount_diam * 0.1;
//
//	Generate a solid to be used to subtract a rounded-slot shape.
//
module neg_rounded_slot(r1, r2, h, w) {
	linear_extrude(height=h+1, center=true, convexity = 30, twist=0) {
		translate([r1, 0, -1]) circle(r=w/2, $fn=10);
		translate([r1, -w/2, -1]) { square([r2-r1, w]); }
		translate([r2, 0, -1]) circle(r=w/2, $fn=10);
	}
}
//
//	Generate the motor mount.
//
module central_mount() {
	difference() {
		cylinder(r=mount_diam/2, h=mount_thickness, $fn=30);
		for (i = [1:4]) {
			rotate([0, 0, i*90-ang_offset])
			neg_rounded_slot(screwhole_sep_min/2, screwhole_sep_max/2, mount_thickness*2, screw_diam);
		}
		if (do_vent_holes) {
			for 	(i = [1:4]) {
				rotate([0, 0, i*90-35-ang_offset])
				neg_rounded_slot(vent_r1, vent_r2, mount_thickness*2, vent_width);
				rotate([0, 0, i*90+35-ang_offset])
				neg_rounded_slot(vent_r1, vent_r2, mount_thickness*2, vent_width);
			}
		}
		cylinder(r=shaft_hole_diam/2, h=mount_thickness*2, $fn=30);
	}
}
//
//	Generate the motor mount wall.
//
module cup() {
	difference() {
		rotate_extrude(convexity=10, $fn=30) translate([cup_ID/2, 0, 0]) square([cup_wall, cup_height]);
		translate([-mount_diam/2, 0, -1]) {
			rotate([0, 0, 45]) cube([mount_diam, mount_diam, cup_height*2+2], center=true);
		}
	}
}
//
//	Generate an arm extending out at the desired radial angle,
//	while creating a concave fillet at the root.
//
module arm(angle) {
	assign(pfx=2.5*arm_dia,
		  pfy=sqrt(pow(mount_diam/2+2*arm_dia,2)-pow(2.5*arm_dia,2)),
		  phi=atan(2.5*arm_dia/sqrt(pow(mount_diam/2+2*arm_dia,2)-pow(2.5*arm_dia,2)))) {
		assign(r1x=mount_diam/2*sin(phi),r1y=mount_diam/2*cos(phi)) {
			difference() {
				rotate([0, 0, angle]) {
					translate([mount_diam/2, 0, arm_dia/2]) rotate([0, 90, 0]) {
						cylinder(r=arm_dia/2, h=(prop_diam-mount_diam)/2, $fn=16);
						rotate_extrude(convexity=10, $fn=30) {
							difference() {
								translate([arm_dia/2-0.01,r1y-mount_diam/2])
								  square([r1x,pfy-r1y]);
								translate([pfx-0.01,pfy-mount_diam/2])
								  circle(r=2*arm_dia);
							}
						}
					}
				}
				translate([0,0,mount_thickness])
				  cylinder(r=cup_ID/2+cup_wall/2, h=cup_height);
				rotate([180,0,0])
				  translate([-mount_diam,-mount_diam,0])
				  cube([mount_diam*2, mount_diam*2, arm_dia*2.5]);
			}
		}
	}
}
//
//	Generate the fender out at the propeller tips.
//
module fender() {
	difference() {
		rotate_extrude(convexity=10, $fn=60) {
			translate([prop_diam/2,fender_dia/2])
			circle(r=fender_dia/2);
		}
		rotate([180,0,arm_ang_3-5])
		  translate([-(prop_diam-fender_dia)/2, 0, -fender_dia])
		  cube([1.2*(prop_diam),prop_diam,fender_dia*3]);
		rotate([0,0,arm_ang_1+5])
		  translate([-(prop_diam-fender_dia)/2, 0, -fender_dia])
		  cube([1.2*(prop_diam),prop_diam,fender_dia*3]);
	}
}
//
//	Create the desired propeller guard.
//
//	Rotate the whole print to more conveniently fit in a square build bed.
//
rotate([0,0,45]) {
	//
	//	Generate the mounting disc with screw holes and optional vent holes.
	//
	central_mount();
	//
	//	Generate a "cup" which surrounds the lower part of the motor and adds strength to the arms.
	//
	cup();
	//
	//	Create three arms of the propeller guard.
	//
	arm(arm_ang_1);
	arm(arm_ang_2);
	arm(arm_ang_3);
	//
	//	Generate the circumferential fender.
	//
	fender();
}

```


[User]
I'd like to design a customizable hydroponic planter, something that can grow scallions, leeks, or similar things. I've been looking at some existing designs, and I've got a pretty clear idea of what I want.

The basic structure will be a series of vertical tubes arranged in rows. These tubes will hold the plants. There will also be a horizontal tube at the base of each row, acting as a water reservoir and support. And, finally, at one end of the base tube, there will be an angled "V" shaped tube where I can pour water into the system.

Here's a breakdown of the parameters I want to control:

*   **`thickness`**: The thickness of all the walls in the design. This will let me adjust for different printing tolerances and strengths.
*   **`base_tube_radius`**: The radius of the base tube.
*   **`base_space`**: The space between two base tubes (in other words, between rows).
*  **`water_tube_radius`**: The radius of the water input tube's opening (the "V" part).
*   **`water_tube_height`**: The overall height of the water input tube.
*   **`tube_radius`**: The radius of each of the vertical plant tubes.
*   **`long_tube_height`**: The height of the longer vertical plant tubes.
*   **`short_tube_height`**: The height of the shorter vertical plant tubes.
*   **`number_long_tube_per_row`**: The number of long vertical tubes in each row.
*  **`number_short_tube_per_row`**: The number of short vertical tubes in each row.
*   **`rows`**: The number of rows of tubes.
*   **`tube_space`**: The horizontal space between two adjacent vertical plant tubes in the same row.

I also want to make it possible to create a shell around the tubes, so I'll need a difference operation for that.

I think that's everything. I'm hoping to have a single file that defines modules for each component of the planter and allows them to be arranged in a modular way.

[Assistant]
v2.scad:
```

//thickness of the wall
thickness = 2 ;//[1:5]

//base tube radius
base_tube_radius = 8;//[5:20]
//space between base tubes
base_space = 10;//[0:100]

//water tube open end raduis
water_tube_raduis = 20;//[10:30]
//water tube height
water_tube_height = 20;//[10:50]

//vertical tube radius
tube_radius = 6;//[1:100]

//long tube height
long_tube_height = 40;//[1:100]
//short tube height
short_tube_height = 10;//[1:100]

//number of long tubes
number_long_tube_per_row = 4;//[0:20]
//number of short tubes
number_short_tube_per_row = 0;//[0:20]
//number of rows
rows = 4;//[2:20]

//space between two tubes
tube_space = 10;//[-10:100]

module tube(r,len){
	linear_extrude(height=len)
		circle(r);
}

module water_tube(or,er,h){
	hull(){
		translate([0,0,h]) linear_extrude(height=1)
			 circle(or);
		linear_extrude(height=1)
			circle(er);
	}
}

module cap(r){
	difference(){
		sphere(r);
		translate([-1.5*r,-1.5*r,-r*3]) cube(r*3);
	}
}

module tube_row(tr,ts,nlt,nst,lth,sth,wtr,wth,btr,is_main,btl,wtos,stos){

	for(i=[0:1:nlt+nst-1])
		translate([i*(tr*2+ts)+tr+stos,0,0])
			if(i<nst) tube(tr,sth);
			else tube(tr,lth);

	if(is_main)
		translate([btl-wtos+1,0])
				water_tube(wtr,tr,wth);

	rotate([0,90,0]) tube(btr,btl);

	rotate([0,-90,0]) cap(btr);
	translate([btl,0,0]) rotate([0,90,0]) cap(btr);

}

module fill(nlt,nst,str,ts,btr,bs,nr,lth,sth,wtr,wth,mbtl,btl,wtos,stos){
	translate([btl/2,0,0])
		rotate([-90,0,0])
			tube(btr,(btr*2+bs)*(nr-1));

	for(i=[0:1:nr-1])
		translate([0,i*(btr*2+ bs),0])
			if(i==0)
				tube_row(
					str,
					ts,
					nlt,
					nst,
					lth,
					sth,
					wtr,
					wth,
					btr,
					i==0,
					mbtl,
					wtos,
					stos
				);
			else
				tube_row(
					str,
					ts,
					nlt,
					nst,
					lth,
					sth,
					wtr,
					wth,
					btr,
					i==0,
					btl,
					wtos,
					stos
				);
}

difference(){
	fill(
		number_long_tube_per_row,
		number_short_tube_per_row,
		tube_radius+thickness,
		tube_space,
		base_tube_radius+thickness,
		base_space,
		rows,
		long_tube_height,
		short_tube_height,
		water_tube_raduis+thickness,
		water_tube_height,
		(number_long_tube_per_row+number_short_tube_per_row)*(tube_radius*2+thickness*2+tube_space)-tube_space+water_tube_raduis*2+thickness*2,
		(number_long_tube_per_row+number_short_tube_per_row)*(tube_radius*2+thickness*2+tube_space)-tube_space,
		water_tube_raduis+thickness,
		0
	);
	translate([0,0,0]) fill(
		number_long_tube_per_row,
		number_short_tube_per_row,
		tube_radius,
		tube_space+thickness*2,
		base_tube_radius,
		base_space+thickness*2,
		rows,
		long_tube_height,
		short_tube_height,
		water_tube_raduis,
		water_tube_height,
		(number_long_tube_per_row+number_short_tube_per_row)*(tube_radius*2+thickness*2+tube_space)-tube_space+water_tube_raduis*2+thickness*2,
		(number_long_tube_per_row+number_short_tube_per_row)*(tube_radius*2+thickness*2+tube_space)-tube_space,
		water_tube_raduis+thickness,
		thickness
	);
}

```


[User]
I need an OpenSCAD design for a customizable set of cubby holes, like the kind you'd find in a school locker or old office. I'd like to be able to control the number of rows and columns, as well as the size of each individual cubby hole. Also, I need to specify the thickness of the outer walls, inner walls, and the bottom. Ideally, if the bottom thickness is set to zero, then no bottom is generated for the cubby holes. The design should be parametric, so I can easily adjust all these values. For now, I’d like to specify cubby hole width, depth, and height separately. It would be really helpful if you could generate the OpenSCAD code for this.

For example, using the code I have, setting the number of columns to 5, the number of rows to 3, the cubby hole width and depth to 10.5 mm, the height to 24 mm, the outer wall thickness to 0.8 mm, the inner wall thickness to 0.4 mm, and the bottom thickness to 1 mm, would give me a container for 15 AAA batteries. I’m hoping your code will do the same, only far more flexible and easier to customize.

[Assistant]
Cubby_Holes.scad:
```
//
// Cubby Holes
//

//Number of columns
number_of_cols = 5;
//Number of rows
number_of_rows = 3;
nbr_cols1 = number_of_cols - 1;
nbr_rows1 = number_of_rows - 1;

//Width of cubby hole (mm)
cubby_hole_width = 10.5;
//Depth of cubby hole (mm)
cubby_hole_depth = 10.5;
//Height of cubby hole (mm)
cubby_hole_height = 24;

//Thickness of outer walls (mm)
outer_wall_thickness = .8;
//Thickness of inner walls (mm)
inner_wall_thickness = .4;
//Thickness of bottom (mm)
bottom_thickness = 1;

outer_x = outer_wall_thickness + (number_of_cols * cubby_hole_width) + (nbr_cols1 * inner_wall_thickness) + outer_wall_thickness;
outer_y = outer_wall_thickness + (number_of_rows * cubby_hole_depth) + (nbr_rows1 * inner_wall_thickness) + outer_wall_thickness;
outer_z = bottom_thickness + cubby_hole_height;

module holder(){
	difference() {
		cube([outer_x, outer_y, outer_z]);
		for( row = [0 : nbr_rows1] ){
			translate([0, (row * (cubby_hole_depth + inner_wall_thickness)), 0])
			for( col = [0 : nbr_cols1] ){
				translate([outer_wall_thickness + (col * (cubby_hole_width + inner_wall_thickness)), outer_wall_thickness, bottom_thickness]) cube([cubby_hole_width, cubby_hole_depth, cubby_hole_height]);
			}
		}
	}
}

holder();

```


[User]
I'm looking to design a customizable motor mount for a model airplane, specifically for the SU-34, and I'd like it to be generated using OpenSCAD. I need it to be parametric so I can easily adjust dimensions for different motors and mounting configurations.

The base of the mount should be a circular disc, and I need to control the following:

*   **Overall Radius:** The radius of the circular disc.
*   **Thickness:** The thickness of the entire mount.
*   **Resolution:** I'd also like to control the resolution of the model to increase or decrease render times and smoothness.

I need a central hole for the motor shaft and would like to control:

*   **Inner Circle Radius:** The radius of this inner hole.

Then, I need several mounting holes around the perimeter.  I need both outer and inner mounting holes. For each hole, I need to be able to control:

*   **Radius:** The radius of the hole.
*   **Offset:** The distance of the hole center from the center of the disc.
*   **Angle:** The angular position of the hole in degrees. I need four sets of mounting holes, both outer and inner, evenly distributed but able to control their offset and radius individually.

Finally, I need some side cut-outs for cable routing or other attachments around the edge of the mount. For each cut-out, I want to define:

*   **Width:** The width of the cut.
*   **Depth:** The distance the cut extends into the disc.
*  **Angle:** The angular position of the cut in degrees. I would like four of these evenly distributed but able to control their offset individually.

I don't have any preference regarding libraries that should be included but would prefer that you include all necessary modules into a single .scad file.

Could you please create the OpenSCAD file based on these requirements? I'd like all parameters to be accessible at the top level of the file as variables.

[Assistant]
Circular_Motor_Mount.scad:
```
// title: Customizable Circular Motor Mount
// project: 3D Models - Physics 12
// author: Ben Zhang
// license: Creative Commons CC BY-SA 3.0
// URL: http://www.thingiverse.com/thing:707732
// Repository: https://github.com/ben-z/3D-Models-Physics-12
// revision: 0.1
// tags: Motor_Mount, Customizable, OpenSCAD, SU-34

/* [General] */

// Radius of the motor mount (mm) [Default: 44]
radius = 22;

// Thickness of the motor mount (mm) [Default: 3]
thickness = 3;

// Resolution of the model (mm) [Default: 50]
resolution = 50;

/* [Inner Circle] */

// Radius of the inner circle (mm) [Default: 4.5]
inner_radius = 4.5;

/* [Outer Holes] */

outer_hole_1_radius = 1;
outer_hole_1_offset = 16;
outer_hole_1_angle = 45;
outer_hole_2_radius = 1;
outer_hole_2_offset = 16;
outer_hole_2_angle = 135;
outer_hole_3_radius = 1;
outer_hole_3_offset = 16;
outer_hole_3_angle = 225;
outer_hole_4_radius = 1;
outer_hole_4_offset = 16;
outer_hole_4_angle = 315;

/* [Inner Holes] */

inner_hole_1_radius = 2;
inner_hole_1_offset = 10;
inner_hole_1_angle = 45;
inner_hole_2_radius = 2;
inner_hole_2_offset = 9;
inner_hole_2_angle = 135;
inner_hole_3_radius = 2;
inner_hole_3_offset = 10;
inner_hole_3_angle = 225;
inner_hole_4_radius = 2;
inner_hole_4_offset = 9;
inner_hole_4_angle = 315;

/* [Side Cuts] */

cut_1_width = 5.6;
cut_1_depth = 6.2;
cut_1_angle = 0;
cut_2_width = 5.6;
cut_2_depth = 6.2;
cut_2_angle = 90;
cut_3_width = 5.6;
cut_3_depth = 6.2;
cut_3_angle = 180;
cut_4_width = 5.6;
cut_4_depth = 6.2;
cut_4_angle = 270;

/* [Hidden] */
$fn=resolution;
thickness_diff_obj = thickness + 1;

motor_mount();

//inner_circle();

//outer_holes();

//inner_holes();

//side_cuts();

module motor_mount(){
  difference(){
    cylinder(r=radius, h=thickness, center=true);
    inner_circle();
    outer_holes();
    inner_holes();
  side_cuts();
  }
}

module inner_circle(){
  cylinder(r=inner_radius, h=thickness_diff_obj, center=true);
}

module outer_holes(){
  rotate([0,0,outer_hole_1_angle]){
    translate([outer_hole_1_offset,0,0]){
      cylinder(r=outer_hole_1_radius, h=thickness_diff_obj, center=true);
    }
  }
  rotate([0,0,outer_hole_2_angle]){
    translate([outer_hole_2_offset,0,0]){
      cylinder(r=outer_hole_2_radius, h=thickness_diff_obj, center=true);
    }
  }
  rotate([0,0,outer_hole_3_angle]){
    translate([outer_hole_3_offset,0,0]){
      cylinder(r=outer_hole_3_radius, h=thickness_diff_obj, center=true);
    }
  }
  rotate([0,0,outer_hole_4_angle]){
    translate([outer_hole_4_offset,0,0]){
      cylinder(r=outer_hole_4_radius, h=thickness_diff_obj, center=true);
    }
  }
}

module inner_holes(){
  rotate([0,0,inner_hole_1_angle]){
    translate([inner_hole_1_offset,0,0]){
      cylinder(r=inner_hole_1_radius, h=thickness_diff_obj, center=true);
    }
  }
  rotate([0,0,inner_hole_2_angle]){
    translate([inner_hole_2_offset,0,0]){
      cylinder(r=inner_hole_2_radius, h=thickness_diff_obj, center=true);
    }
  }
  rotate([0,0,inner_hole_3_angle]){
    translate([inner_hole_3_offset,0,0]){
      cylinder(r=inner_hole_3_radius, h=thickness_diff_obj, center=true);
    }
  }
  rotate([0,0,inner_hole_4_angle]){
    translate([inner_hole_4_offset,0,0]){
      cylinder(r=inner_hole_4_radius, h=thickness_diff_obj, center=true);
    }
  }
}

module side_cuts(){
  rotate([0,0,cut_1_angle]){
    translate([radius - cut_1_depth / 4,0,0]){
      cube(size=[cut_1_depth*2, cut_1_width, thickness_diff_obj], center=true);
    }
  }
  rotate([0,0,cut_2_angle]){
    translate([radius - cut_2_depth / 4,0,0]){
      cube(size=[cut_2_depth*2, cut_2_width, thickness_diff_obj], center=true);
    }
  }
  rotate([0,0,cut_3_angle]){
    translate([radius - cut_3_depth / 4,0,0]){
      cube(size=[cut_3_depth*2, cut_3_width, thickness_diff_obj], center=true);
    }
  }
  rotate([0,0,cut_4_angle]){
    translate([radius - cut_4_depth / 4,0,0]){
      cube(size=[cut_4_depth*2, cut_4_width, thickness_diff_obj], center=true);
    }
  }
}

```


[User]
I'd like to create a parametric brake tuner for bicycles, specifically for V-brakes and cantilever brakes.  I've got a pretty specific idea in mind, so I need something that is configurable in OpenSCAD.

The tuner essentially sits between the brake shoe and the rim (on one side) and between the brake shoe and the tire (on the other side). It's designed to allow fine adjustments to the brake shoe position.  I'd like to be able to adjust the following parameters:

*   **Wheel Radius:** The radius of the bike wheel in millimeters.  A default value of 275mm (for a typical 26" wheel) would be a good starting point.
*   **Front Thickness:**  The distance between the tuner and the rim in millimeters. This should be adjustable, say, from 0 to 5mm with a default around 2.4mm.
*   **Back Thickness:**  The distance between the tuner and the tire in millimeters. This should also be adjustable, maybe from 0 to 5mm with a default around 1.3mm.
*  **Distance to Tire:**  The thickness of the separation between the brake shoe and the tire. A default of 1 mm adjustable between 0-5mm would be useful.
*   **Rim Width (or Brake Shoe Height):**  The width of the rim or height of the brake shoe in millimeters.  It should be adjustable, say, between 0 and 30mm with a default of 13mm.
*   **Shoe Length:** The length of the brake shoe in millimeters.  I'd like a default of 70mm
*   **Tire Separator Height:** The height of the wall that separates the tire from the brake shoe. I'd like a default of 10mm.
*  **Hole Size:**  The diameter of a hole (for a keyring or similar) in millimeters. A default of 3mm would be fine.

The design should create two mirrored pieces, a "left" and a "right" tuner. Each should have an identifying letter on it - "L" on the left and "R" on the right.  The main body of the tuner should include:

1.  A curved section that fits between the rim and brake shoe, and whose thickness can be adjusted via the "Front Thickness" parameter.
2.  A second, separate curved section that fits between the tire and brake shoe and whose thickness can be adjusted via the "Back Thickness" parameter.
3.  A "wall" between the rim-side curved section and the tire-side curved section which should also have a variable thickness as defined by the parameter "Distance to Tire".
4.  The aforementioned hole somewhere on the tuner.
5.  The 'L' or 'R' letter on the tuner.

For the letters, I think it would be best to import separate STL files named "letter\_L.stl" and "letter\_R.stl".

I'd like to generate this with a high resolution, and think that setting `$fn=200` would be appropriate.

I think that's about it. Can you generate the necessary OpenSCAD files? No need for separate library files.

[Assistant]
braketuner.scad:
```
// wheel radius in mm (default for 26")
RADIUS_WHEEL      = 275;

// distance to rim (front) in mm
THICKNESS_FRONT   = 2.4;   // [0:5]

// distance to rim (back) in mm
THICKNESS_BACK    = 1.3;   // [0:5]

// in mm, thickness of the separator between shoe and tire
DISTANCE_TO_TIRE  = 1;     // [0:5]

// height of the brake shoe or rim width in mm
RIM_WIDTH         = 13;    // [0:30]

// length of the brake shoe in mm
SHOE_LENGTH       = 70;

// height of the separator between shoe and tire in mm
TIRE_SEP_HEIGHT   = 10;

// diameter of hole (e.g. for keyrings) in mm
HOLE_SIZE         = 3;

// set resolution...
$fn = 200;

/* [Hidden] */

/* ---- Variables ---- */
r_rim_middle = (RADIUS_WHEEL - (RIM_WIDTH / 2));
shoe_angle = asin(SHOE_LENGTH / (2 * r_rim_middle)) * 2;

h1 = max(THICKNESS_FRONT, THICKNESS_BACK);
h2 = min(THICKNESS_FRONT, THICKNESS_BACK);
h1_h2_middle = (h1 + h2) / 2;

/* ---- Braktuners ---- */
braketuners();

/**
 * Braktuners for both sides (L and R).
 */
module braketuners() {
    translate([-5,0,0]) {
        braketuner("R");
    }
    translate([5,0,0]) {
        mirror([1,0,0]) braketuner("L", mirrored=true);
    }
}

/**
 * Braketuner. Everything assembled for one side.
 */
module braketuner(left_right, mirrored=false) {
    difference() {
        difference() {
            base();
            hole();
        }
        letter(left_right, mirrored);
    }
}

/**
 * The Base.
 * Combindes PART I, II, III.
 * Base is everything needed to work (i.e. a wall between shoe and tire (top) and
 * another wall between shoe and rim (side)).
 * This is used for the right side, mirror it for the left side.
 */
module base() {
    union(){
        translate([-RADIUS_WHEEL, 0, 0]){
            difference() {
                rotate(-shoe_angle/2, [0,0,1]) part1();
                part2();
            }
            rotate(-shoe_angle/2, [0,0,1]) part3();
        }
    }
}

/* ---- PART 1: extruded ring sector aka. part of tube ---- */
module part1() {
    extruded_ring_sector(height = h1 * 2,
                         radius_outer = RADIUS_WHEEL,
                         wall_thick = RIM_WIDTH,
                         angle = shoe_angle);
}

/* ---- PART 2: rotated thing for subtraction ---- */
// this part is subtracted from part 1 to make it slanted

module part2() {
    // this is not very correct
    angle_slanted = atan((2 * (h1_h2_middle - h2)) / SHOE_LENGTH);
    size_x_for_substr = RADIUS_WHEEL * 3;
    size_y_for_substr = RADIUS_WHEEL * 3;
    size_z_for_substr = h1 * 3;

    translate([0, 0, h1_h2_middle]) {
        rotate(angle_slanted, [1,0,0]) {
            translate([0, -size_y_for_substr/2, 0]) {
                cube(size = [size_x_for_substr,
                        size_y_for_substr, size_z_for_substr]) {
                }
            }
        }
    }
}

/* ---- PART 3: wheel distance keeper ---- */
module part3() {
    extruded_ring_sector(height = TIRE_SEP_HEIGHT,
                         radius_outer = RADIUS_WHEEL + DISTANCE_TO_TIRE,
                         wall_thick = DISTANCE_TO_TIRE,
                         angle = shoe_angle);
}

/* ---- Addons ---- */
// these are parts add to the base, e.g. holes, letters, arrows, ...

/**
 * Hole is the object to subtract a hole (for keys etc).
 */
module hole() {
    offset_x = cos(shoe_angle/2) * RADIUS_WHEEL - RADIUS_WHEEL;
    offset_y =  -sin(shoe_angle/2) * RADIUS_WHEEL + 1.3*HOLE_SIZE; // the last summand is a fast workaround
    offset_z = TIRE_SEP_HEIGHT - HOLE_SIZE;
    translate([offset_x, offset_y, offset_z]) {
        rotate (-shoe_angle, [0,0,1]) {
            translate([-DISTANCE_TO_TIRE, 0, 0]) {
                rotate(90, [0,1,0]) {
                    cylinder(h=3*DISTANCE_TO_TIRE, r=HOLE_SIZE/2);
                }
            }
        }
    }
}

module letter(left_right, mirrored=false) {
    if (! mirrored) {
        letter_no_mirror(left_right);
    }
    else {
        rotate(180, [0, 0, 1]) {
            mirror([1, 0, 0]) letter_no_mirror(left_right);
        }
    }
}

module letter_no_mirror(left_right) {
    translate([DISTANCE_TO_TIRE-RIM_WIDTH, 0, THICKNESS_FRONT/2]) {
        rotate(-90, [0, 0, 1]) {
            scale([0.2,0.2,0.2]) {
                import(str("letter_", left_right, ".stl"));
            }
        }
    }
}

/* ---- Helper modules ---- */

/**
 * A Tube
 */
module tube(height, radius_outer, wall_thick) {
    difference() {
        cylinder(h = height, r = radius_outer);
        // we subtract a higher cylinder, because of rounding issues
        translate([0,0, -height * 0.5]) {
            cylinder(h = height * 2, r = radius_outer - wall_thick);
        }
    }
}

/**
 * Pie slice, an extruded circle sector.
 *
 * from http://www.thingiverse.com/thing:34027
 * Example: pie_slice(radius=100,height=30,angle=90,step=5);
 * Note: angle in degree
 */
module pie_slice(radius, height, angle, steps, center=false) {
    step_size = angle / steps;
    for(theta = [0:step_size:angle-step_size]) {
        rotate([0,0,0])
        linear_extrude(height = height, center=center)
        polygon(
            points = [
                [0,0],
                [radius * cos(theta+step_size) ,radius * sin(theta+step_size)],
                [radius*cos(theta),radius*sin(theta)]
            ]
        );
    }
}

/**
 * A part of a tube.
 */
module extruded_ring_sector(height, radius_outer, wall_thick, angle) {
    intersection() {
        tube(height = height,
             radius_outer = radius_outer,
             wall_thick = wall_thick);
        pie_slice(radius = radius_outer * 2,
                  height = height * 2.5,
                  angle = angle,
                  steps = 5.0, // this means that a pie_slice with 5 corners
                               // is used to cut th pie slice out of the tube
                  center=true);
    }
}

```


[User]
I'd like to have a custom spice rack designed for 3D printing, and I've got some specific parameters I'd like to control. I want to be able to mount it inside a cabinet door.

The basic idea is to have a series of cylindrical holders, each with a back, a partial front, and a hole in the bottom to help push the spice containers out. I'd like to control the following:

*   **Container Diameter:** This should be a parameter so I can easily adjust it for different spice container sizes (specifically, I'm thinking of those Tone's brand spice containers). I'll need to add a little bit to account for print tolerances.
*   **Back Height:**  The height of the back part of the holder.
*   **Number of Containers:**  How many holders are in the rack, side-by-side.
*   **Front Height:** The height of the front lip that holds the spice container in place
*   **Bottom Opening:**  A parameter to specify whether to include a hole in the bottom of each holder (useful for getting the spice out)
*  **Front Opening:** A parameter to specify whether to have an opening in the front of the spice holder or a fully enclosed tube
*   **Back Style:** A parameter to specify whether the back should be fully enclosed, or a smaller, less material intensive back for each holder.

I'd like to have this be parametric so I can adjust those dimensions easily in OpenSCAD.

I plan to use 3M tape to mount, so I don't need screw holes.
I would like a parametric screw to be included for reference.

Could you generate the necessary OpenSCAD file(s) for me?

[Assistant]
spice_rack.scad:
```
//The diameter of the container you wish to hold in mm.  Add ~0.5mm to account for print tolerances
container_diameter = 40.5; // [40:55]
//The height of the back of the holder
back_height = 25;  // [20:40]
//The number of containers
containers = 5; // [1:10]
//The height of the front portion
front_height = 12.5;  //[10:20]
//Hole in the bottom (this does aid in accessing spices)
bottom_opening = "yes"; //[yes, no]
//whether to have a fully enclosed tube or have an opening in the front
front_opening = "yes"; //[yes, no]
//If you want a full back (sturdier holder) use yes, for less plastic, try no
large_back = "yes"; //[yes, no]

// preview[view:south, tilt:top diagonal]

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

// Screw
head_d1 = 6.5;
d1 = 2.7;
d2 = 2;
head_h = 2.75;
length= 10;

module screw(head_d1, d1, d2=d1, head_h, length, countersunk=false){
	union(){
		if (countersunk)
			cylinder(h = head_h, r1 = head_d1/2, r2 = d1/2);
		else
			cylinder(h = head_h, r = head_d1/2);

		translate([0, 0, head_h])
			cylinder(h = length, r1 = d1/2, r2 = d2/2);
	}
}

// reference Spice container
cont_dia = container_diameter;
thickness = 1.5;

module spice_container(){
	cylinder(h=back_height, r=cont_dia/2);
}

// parts that holds the spice container
module support(thickness, cont_dia, bottom_opening, front_opening){
	height = back_height;
	radius = thickness + cont_dia/2;
	back_factor = 2;

	union(){
		difference(){
			hull(){
				cylinder(h=height, r=radius);
				if (large_back == "yes") {
					translate([-radius, -radius*(back_factor/2), 0])
							cube(size=[thickness*2, radius*back_factor,height]);
				}
				else {
					translate([-radius, -radius*(1/2), 0])
							cube(size=[thickness*2, radius,height]);
				}
			}
			translate([0, 0, thickness]) spice_container();
			if (front_opening == "yes"){
				translate([0,-cont_dia/2, front_height])
						cube(size=[cont_dia, cont_dia, back_height]);
			}
			if (bottom_opening == "yes"){
				cylinder(h=back_height, r=cont_dia/3);
			}
		}
	}

}

//spice_container();

rotate([0, 0, 270]) union(){
	for (i=[0:containers-1]){
		translate([0, (cont_dia+thickness)*i, 0,]){
			difference(){
				support(thickness, cont_dia, bottom_opening, front_opening);
				translate([head_h-thickness-cont_dia/2, 0, back_height*2/3])
					rotate([0, 270, 0]) screw(head_d1, d1, d2, head_h, length, true);
			}
		}
	}
}

```


[User]
I'm looking to generate a set of parametric nut knobs in OpenSCAD, similar to the ones described in the "Ultimate Nut Knob Generator" project, but I'd like to have more control over the different types and their parameters and maybe a cleaner structure. I'd like the design to be flexible enough to accommodate different nut sizes, shapes (hex, square, etc), knob styles, and other customization options. I'm happy to use a library if that would help.

Here are the key features I'd like to be able to customize:

*   **Nut Parameters:**
    *   `nut_width`: The distance across the flats of the nut.
    *   `nut_thickness`: The thickness of the nut.
    *   `nut_sides`: The number of sides of the nut (e.g., 4 for square, 6 for hex, 8 for octagon).
    *   `backlash`: A small clearance value to ensure the nut fits in easily, which might be a fixed value.

*   **Knob Parameters:**
    *   `height`: Overall height of the knob.
    *   `knurled_height`: The height of the knurled portion as a percentage of the total height.
    *   `diameter_1`: A diameter that will define the base of the knob, relative to the hex nut diameter.
    *   `diameter_2`: A larger diameter, relative to diameter_1 which defines the max diameter of the knurled section
    *   `screw_hole_diameter`: Diameter of a central hole to pass a screw/bolt head.
    *   `screw_hole_length`: Length of the screw/bolt hole.
    *   `bottom_thickness`: The thickness of the bottom of the knob where the nut is captured, so it can have an open or closed bottom.
*   **Knurling Parameters:**
    *   `knurled_density`: The density of the knurling pattern.
    *   `knurled_strong`: The depth/strength of the knurling teeth.
*   **Knob Styles:**
    *   `part`: A variable that defines the style of knob (e.g., `hex`, `simple`, `cylindrical`, `clamp`, `rounded`, `wing`). The specific design for each will need to be implemented, but should be modular.
*   **Advanced/Expert options:**
    *   `supportless_friendly`: An option to make the design more 3D print friendly without supports (e.g., remove overhangs).
	*   `cross_section`: A simple way to visualize a cross section of the knob for debugging or printing.

I'd really like to make these fully parameterized and easy to use through a customizer. I think we could accomplish this best by making functions for each of the knob styles, and also for creating the knurling, screw holes, and nut pockets. If we also make the parameters functions that way the customizer doesn't have to work hard to do all the calculations. I was thinking of using functions like `get_diameter_1()`, `get_diameter_2()`, `get_screw_hole_diameter()`, and `get_screw_hole_length()`. The knurling density might also need a specific function `get_knurled_n()` and `get_knurled_density_factor()`.

I think I also want the option to rotate the model so that very tall knobs can be printed laying flat on the print bed. And it would be helpful if the generated knobs had the same orientation as the original, which was determined by `nut_width*5<height?[0,90,0]:(bottom_thickness==0.0?[180,0,0]:[0,0,0])`.

I'm picturing that the code will generate the main body of the knob from a union of a series of stacked cylinders, possibly created with a `for` loop, and that the main differences in the styles will come down to different knurling modules, i.e. `create_knurled()`. For the wing style, I think `linear_extrude()` and `hull()` are probably appropriate. I'd like a `create_nut_pocket()` module that takes the nut parameters to create the shape necessary to hold a nut of the specified size.

I'd really like to include a module that'll do the final cut to make the screw hole and nut pocket at the same time. So that we can easily add `backlash` to the sizes.

To summarize, I'm aiming for a very modular and configurable design for creating different nut knobs. Let me know if you have any questions!

[Assistant]
nut_knob_v1_5_1.scad:
```
// 'Ultimate Nut Knob Generator' by wstein
// is licensed under the Attribution - Non-Commercial - Share Alike license.
// Version 1.5 (c) April 2015
// please refer the complete license here: http://creativecommons.org/licenses/by-nc-sa/3.0/legalcoe
//
// V1.1: some smaller improvements and new parameter "supportless_friendly" and "screw_hole_length"
// V1.2: flip very long knobs (miniature hex handle) and new hex shape
// V1.5: new support of tetragon up to octagon nuts
//       new wing shape
//       error in calulation of nuts fixed (relevant on bigger ones)
// V1.5.1: Global fix for latest Customizer

// preview[view:west, tilt:top diagonal]

//to show in Customizer - you get always all parts!
part = "cylindrical"; // [hex,simple,cylindrical,clamp,rounded,wing]

//across flats (M3 = 5.42, Allen = 6.35)
nut_width = 5.42;
nut_thickness = 2.5;

//of knob
height=10;

// in percent of knob height
knurled_height=50; //[10:100]

/*[Advanced]*/
echo("nut_diameter",nut_diameter);

// calculated relative to hex nut diameter
diameter_1=150; //[100:300]
function get_diameter_1()=hex_nut_diameter*diameter_1/100;

// in percent of Diameter 1
diameter_2=125; //[100:200]
function get_diameter_2()=get_diameter_1()*diameter_2/100;

// in percent of nut diameter
screw_hole_diameter = 55; //[0:100]
function get_screw_hole_diameter()=nut_diameter*screw_hole_diameter/100;

// in percent of knob height
screw_hole_length = 100; //[0:100]
function get_screw_hole_length()=height*screw_hole_length/100;

// should be multiple of layer thickness (0.6 should be perfect for 0.1, 0.2, 0.3mm layer thickness). Use 0 for open bottom like the screwdriver handle
bottom_thickness = 0.6;

/*[Knurled]*/
//no effect on wing style
knurled_density=50; //[0:100]

knurled_strong=5;//[1:20]

/*[Expert]*/

//- tetragon=4, pentagon=5, hexagon=6, octagon=8
nut_sides=6;//[4,5,6,8]

// prevented some extreme overhangs
supportless_friendly=1; //[0:false,1:true]

//increase if it fits to tight
backlash=0.1;

cross_section=0; //[0:false,1:true]

/*[Hidden]*/
function get_knurled_n()= (
    part=="hex" ? 6 : (
    part=="wing" ? 2 : (
    round(sqrt(10*get_diameter_2())*get_knurled_density_factor()))));

function get_knurled_density_factor()=pow(10,knurled_density/50-1);
echo("get_knurled_density_factor()", get_knurled_density_factor());

nut_diameter = nut_width/cos(360/nut_sides/2);
hex_nut_diameter = nut_width/cos(360/6/2);

knurled_r=sqrt(10*get_diameter_2())/40*knurled_strong;

h1=height-height*knurled_height/100;
hlist=[0,h1/5,h1*2/5,h1*3/5,h1*4/5,h1,height];
rstep=[0,pow(0.2,2),pow(0.4,2),pow(0.6,2),pow(0.8,2),pow(1.0,2),pow(1.0,2)];
rlist=rstep*(get_diameter_2()-get_diameter_1());

if(height-h1-2.1*knurled_r>0||part!="rounded")
rotate(nut_width*5<height?[0,90,0]:(bottom_thickness==0.0?[180,0,0]:[0,0,0]))
union()
{
	difference()
	{
		union()
		{
			create_knurled();

			for(n=[0:5])
			translate([0,0,hlist[n]])
			cylinder(r1=(get_diameter_1()+rlist[n])/2,r2=(get_diameter_1()+rlist[n+1])/2,h=hlist[n+1]-hlist[n],$fn=60);
		}

		if(get_screw_hole_diameter()>0&&screw_hole_length>0)
		translate([0,0,-.1])
		cylinder(r=get_screw_hole_diameter()/2+backlash,h=get_screw_hole_length()+.11,$fn=20);

		assign(r1=1.0*nut_diameter/2+backlash)
		assign(r2=0.95*nut_diameter/2+backlash)
		assign(r3=1.05*nut_diameter/2+backlash)
		assign(h1=bottom_thickness)
		assign(h2=h1+nut_thickness-0.04*nut_diameter)
		assign(h3=h1+nut_thickness-0.01*nut_diameter)
		assign(h30=h1+nut_thickness)
		assign(h4=h1+nut_thickness+.1*nut_diameter)
		assign(h5=h4+.2*nut_diameter)
		assign(h6=max(h5,height))
        rotate([0,0,360/nut_sides/2])
		rotate_extrude($fn=nut_sides)
		if(bottom_thickness>0)
		polygon(points=[[r1,h1],[r1,h2],[r2,h3],[r2,h4],[r3,h5],[r3,h6+.1],[0,h6+.1],[0,h1]]);
		else
		polygon(points=[[r1,h1-.1],[r1,h30],[0,h30],[0,h1]]);

		if(cross_section)
		translate([-1000/2,0,-.1])
		cube([1000,1000,100]);
	}
}
else
for(a=[-45,45])
rotate([0,0,a])
cube([1,10,0.2],center=true);

module create_knurled()
translate([0,0,h1])
difference()
{
	if(part=="simple")
	create_simple_knurled();
	else if(part=="hex")
    hull()
	create_shaped_knurled();
	else if(part=="clamp")
	create_knurled_clamp();
    else if(part=="wing")
    create_wings();
	else
	create_shaped_knurled();

	assign(points=[[get_diameter_2()/2,-.01],[get_diameter_2()/2+1000,1000/2],[get_diameter_2()/2+1000,-.01]])
	if(part!="rounded"&&bottom_thickness!=0.0&&supportless_friendly==1)
	rotate_extrude($fn=60)
	polygon(points);
}

module create_knurled_clamp()
difference()
{
	cylinder(r=(2*knurled_r+get_diameter_2())/2,h=height-h1,$fn=60);

	for(a=[0:get_knurled_n()-1])
	rotate(360/get_knurled_n()*a)
	translate([get_diameter_2()/2+knurled_r,0,-.1])
	cylinder(r=knurled_r,h=height-h1+.2,$fn=30);
}

module create_simple_knurled(fn=4)
assign(n=round(get_knurled_n()/2))
for(a=[0:n-1])
rotate(360/fn/n*(a+.5))
cylinder(r=(2*knurled_r+get_diameter_2())/2,h=height-h1,$fn=fn);

module create_shaped_knurled()
for(a=[0:get_knurled_n()-1])
rotate(360/get_knurled_n()*(a+.5))
translate([get_diameter_2()/2,0,0])
if(part=="rounded"||part=="hex")
hull()
create_knurled_rounded();
else if(part=="cylindrical")
create_knurled_cylindrical();

module create_knurled_rounded()
for(z=[knurled_r,height-h1-knurled_r])
translate([0,0,z])
sphere(r=knurled_r,$fn=20);

module create_knurled_cylindrical()
cylinder(r=knurled_r,h=height-h1,$fn=20);

module create_wings()
assign(len=knurled_r*get_diameter_2()*.7)
linear_extrude(height=height-h1,convexity=20)
hull()
{
    circle(r=get_diameter_2()/2,$fn=60);

    for(a=[0:1])
    rotate(360/get_knurled_n()*(a+.5))
    translate([len,0,0])
    circle(r=get_diameter_2()/4,$fn=30);
}

```


[User]
Hi, I'm looking to get a custom VESA mount designed, something similar to what I've seen before. I need it to be parametric so I can adjust it for different setups.

Essentially, I need a bracket that has two parts: a back bracket that attaches to the monitor/wall, and a top plate that the device I'm mounting sits on. I need to be able to specify whether to generate just the back bracket, just the top plate, or both.

For the back bracket, I'd like to be able to set the VESA size (like 75x75, 100x100, or 200x200). I also need a parameter to choose if I'm mounting directly to the monitor (or TV) or if I'm going to use a wall mounting bracket; this would affect the depth at the back I think. I also need to set the mounting bolt diameter, bracket width and bracket thickness, plus how far the top of the bracket is from the top hole for mounting to the monitor/TV.

For the top plate, I'd like a choice between a solid square style or a lighter "X" style. I also need to set the top plate thickness, width, and depth. And also the ability to shift the plate backward, away from the monitor a bit. I also need to be able to connect the top and back brackets via semi-circular pieces.

The bracket's design should include holes/slots for mounting using bolts.

Could you generate OpenSCAD code for this? I would like to be able to adjust all of these variables in the OpenSCAD customizer. I don't think I need any external libraries for this design.

[Assistant]
CustomizableVESAMount0-7.scad:
```
//Customizable VESA mount
//by eriqjo February 21, 2015

//TODO  redundant top plate support (rectangle between the semi-circles)

//CUSTOMIZER VARIABLES

/* [Global] */

//Which parts do you want to make?
Make_Part = 3; // [1:Back Bracket, 2:Top Plate, 3:Both]

/* [Back Bracket] */

//Choose the VESA mount size, mm
VESA_Size = 100; // [75:75x75, 100:100x100, 200:200x200]

//What are you mounting to?
Mount_To = 2; // [1:Direct to monitor/TV, 2:Wall mounting bracket]

//Mounting bolt diameter, mm:
Bolt_Dia = 4; // [3:8]

//Bracket width, mm:
Bracket_Width = 15; // [9:30]

//Bracket thickness, mm:
Bracket_Thickness = 4; // [4:20]

//Distance from top bracket hole to top of monitor/TV
Height_To_Top = 45;

/* [Top Plate] */

//Top plate style
Top_Style = 2; // [1:Solid(square), 2:Lite(x)]

//Top plate thickness, mm:
Plate_Thickness = 5; // [3:8]

//The width of the box you are mounting, mm
Plate_Width = 170;

//The depth of the box you are mounting, mm
Plate_Depth = 140;

//How far back should the top plate be shifted, mm
Shift_Top_Back = 0;

//CUSTOMIZER VARIABLES END

slop = 0.2 * 1;

module buildBack(ydim = 25){

	topLength = Height_To_Top + ydim;

	difference(){
		union(){
			for(i = [-1, 1]){			//creating the two legs of the bracket
				translate([ i * VESA_Size/2, 0, 0])
					difference(){
						union(){
							cylinder(h = Bracket_Thickness, r = Bracket_Width/2, $fn = 20);		//bottom of leg
							translate([-Bracket_Width/2, 0, 0])									//leg
								cube([Bracket_Width, topLength, Bracket_Thickness]);
						} // union
						translate([0, 0, -0.1])
							cylinder(h = Bracket_Thickness + slop, r = (Bolt_Dia + slop)/2, $fn = 10);	// bottom hole
						translate([0, ydim, -0.1])
							cylinder(h = Bracket_Thickness + slop, r = (Bolt_Dia + slop)/2, $fn = 10);  //bottom of slot
						translate([0, ydim + Bolt_Dia, -0.1])
							cylinder(h = Bracket_Thickness + slop, r = (Bolt_Dia + slop)/2 , $fn = 10); //top of slot
						translate([-(Bolt_Dia + slop)/2, ydim, -0.1])
							cube([Bolt_Dia + slop, Bolt_Dia, Bracket_Thickness + 0.2]);					//between the slot
					} // difference
			} // for
			translate([-Bracket_Width/2 - VESA_Size/2, topLength, 0])					//top portion of the bracket
				cube([VESA_Size + Bracket_Width, Bracket_Width, Bracket_Thickness]);
			for(i = [-1, 1]){
				translate([ i * (Bracket_Width/2 - Bracket_Thickness/2 + VESA_Size/2 ), topLength + Bracket_Width/2, Bracket_Thickness + (Bolt_Dia/2) + 2]){ // start of the semi-circle mounts
					rotate([0, 90, 0]){
						difference(){
							union(){
								cylinder( h = Bracket_Thickness, r = Bracket_Width/2, center = true, $fn = 20);
								translate([Bracket_Width/4, 0, 0,])
									cube([Bracket_Width/2, Bracket_Width, Bracket_Thickness], center = true);
							} // union
							cylinder(h = Bracket_Thickness + slop, r = (Bolt_Dia + slop)/2, center = true, $fn = 10);
						}//difference
					}//rotate
				}//translate
			}//for
		} // union
		translate([0, 0, -20]) {
			cube([300, 300, 40], center = true);
		}//translate
	}//difference
}//module buildBack

module buildTop(ydim = 25){

	topLength = Height_To_Top + ydim;
	unit = min(Plate_Depth, Plate_Width)/2;

	union(){
		if(Top_Style == 1){		//solid square top plate
			translate([0, Plate_Thickness/2  + topLength + 1.9 + Bracket_Width, Plate_Depth/2 - Shift_Top_Back])  //original

				cube([Plate_Width, Plate_Thickness, Plate_Depth], center = true);
		}//if

		if(Top_Style == 2){		//Lite X-style top plate
			translate([0, Plate_Thickness/2  + topLength + 1.9 + Bracket_Width, Plate_Depth/2 - Shift_Top_Back])
				difference(){
					cube([Plate_Width, Plate_Thickness, Plate_Depth], center = true);								//plate itself
					for(i = [[Plate_Width/2, 0, 0], [0, 0, Plate_Depth/2], [-Plate_Width/2, 0, 0]]){
						translate(i)
							rotate([0, 45, 0]){
								cube([unit, Plate_Thickness+1, unit], center = true);
							}//rotate
					}//for
				}//difference
		}//if
		for(i = [-1,1]){
			translate([i * (Bracket_Thickness/2 + VESA_Size/2 + Bracket_Width/2 + slop), topLength + Bracket_Width/2, Bracket_Thickness + (Bolt_Dia/2) + 2]){
				rotate([0, 90, 0]){
					difference(){
						union(){
							cylinder( h = Bracket_Thickness, r = Bracket_Width/2, center = true, $fn = 20);			//swivel attachment semi-circle
							translate([0,Bracket_Width/4 + 1,0])
								cube([Bracket_Width, Bracket_Width/2 + 2, Bracket_Thickness], center = true);		//swivel attachment point
						}//union
						cylinder( h = Bracket_Thickness + slop, r = (Bolt_Dia + slop)/2, center = true, $fn = 12);  //swivel hole
					}//difference
				}//rotate
			}//translate
		}//for
		translate([0, Plate_Thickness/2  + topLength + 1.9 + Bracket_Width, Bracket_Thickness + (Bolt_Dia/2) + 2])
			cube([2*Bracket_Thickness + VESA_Size + Bracket_Width +slop, Plate_Thickness, Bracket_Width], center = true);
	}//union
}//module buildTop

if (Mount_To == 1){
	if(Make_Part == 1) {buildBack(ydim = VESA_Size);}
	if(Make_Part == 2) {buildTop(ydim = VESA_Size);}
	if(Make_Part == 3) {buildTop(ydim = VESA_Size); buildBack(ydim = VESA_Size);}
}// if

if (Mount_To == 2){
	if(Make_Part == 1) {buildBack(ydim = 25);}
	if(Make_Part == 2) {buildTop(ydim = 25);}
	if(Make_Part == 3) {buildTop(ydim = 25); buildBack(ydim = 25);}
}// if

```


[User]
I'm looking for a customizable 3D text generator that can extrude letters and connect them for 3D printing, like a nameplate or small sign. It should have these features:

*   **Text Input:** I need to be able to specify the text I want to use.
*   **Font Selection:** There should be a way to pick from a wide variety of fonts, preferably similar to the Google Fonts library.
*   **Special Characters:** I want the option to add a special character (like a heart, arrow, or smiley) to either the left or the right of the text. I should be able to choose the character from a list of common symbols. There should be some adjustable space between the symbol and the text.
*   **Base Connection:** The letters should be connected at the base so they don't fall apart after printing. This should be done using either a connecting bar or a rounded base that connects all letters.
*   **'i' and 'j' Dot Connection:** There should be some sort of adjustment or mechanism to reliably connect the dots of i and j to the rest of the letter, if present in the text.
*   **Adjustable Size:** The size (height) of the text should be adjustable in millimeters.
*   **Extrusion Height:** The extrusion height of the text should also be adjustable in millimeters, determining how thick the printed text will be.
*   **Base Height/Thickness:** If using a connecting bar, the bar height and thickness should also be adjustable, perhaps as percentages of the text height and size. If a round base, the radius increase should also be adjustable.

I'd like the code to be well-commented so I can understand how it works. I expect a single OpenSCAD (.scad) file for this design. I am not requesting the inclusion of any pre-made libraries; this design should be self-contained. Thanks!

[Assistant]
Name_and_Text_VH.scad:
```
//Set the text to render
textstring="Your Text";

//Font name, e.g. "Libration Sans", "Aldo", depends on what is available on the platform. In the customizer,choose from about 700 Google Fonts. For an overview please refer: http://www.google.com/fonts
fontname="Orbitron"; //[ABeeZee,Abel,Abril Fatface,Aclonica,Acme,Actor,Adamina,Advent Pro,Aguafina Script,Akronim,Aladin,Aldrich,Alef,Alegreya,Alegreya Sans,Alegreya Sans SC,Alegreya SC,Alex Brush,Alfa Slab One,Alice,Alike,Alike Angular,Allan,Allerta,Allerta Stencil,Allura,Almendra,Almendra Display,Almendra SC,Amarante,Amaranth,Amatic SC,Amethysta,Amiri,Anaheim,Andada,Andika,Angkor,Annie Use Your Telescope,Anonymous Pro,Antic,Antic Didone,Antic Slab,Anton,Arapey,Arbutus,Arbutus Slab,Architects Daughter,Archivo Black,Archivo Narrow,Arimo,Arizonia,Armata,Artifika,Arvo,Asap,Asset,Astloch,Asul,Atomic Age,Aubrey,Audiowide,Autour One,Average,Average Sans,Averia Gruesa Libre,Averia Libre,Averia Sans Libre,Averia Serif Libre,Bad Script,Balthazar,Bangers,Basic,Battambang,Baumans,Bayon,Belgrano,Belleza,BenchNine,Bentham,Berkshire Swash,Bevan,Bigelow Rules,Bigshot One,Bilbo,Bilbo Swash Caps,Bitter,Black Ops One,Bokor,Bonbon,Boogaloo,Bowlby One,Bowlby One SC,Brawler,Bree Serif,Bubblegum Sans,Bubbler One,Buda,Buenard,Butcherman,Butterfly Kids,Cabin,Cabin Condensed,Cabin Sketch,Caesar Dressing,Cagliostro,Calligraffitti,Cambay,Cambo,Candal,Cantarell,Cantata One,Cantora One,Capriola,Cardo,Carme,Carrois Gothic,Carrois Gothic SC,Carter One,Caudex,Cedarville Cursive,Ceviche One,Changa One,Chango,Chau Philomene One,Chela One,Chelsea Market,Chenla,Cherry Cream Soda,Cherry Swash,Chewy,Chicle,Chivo,Cinzel,Cinzel Decorative,Clicker Script,Coda,Coda Caption,Codystar,Combo,Comfortaa,Coming Soon,Concert One,Condiment,Content,Contrail One,Convergence,Cookie,Copse,Corben,Courgette,Cousine,Coustard,Covered By Your Grace,Crafty Girls,Creepster,Crete Round,Crimson Text,Croissant One,Crushed,Cuprum,Cutive,Cutive Mono,Damion,Dancing Script,Dangrek,Dawning of a New Day,Days One,Dekko,Delius,Delius Swash Caps,Delius Unicase,Della Respira,Denk One,Devonshire,Dhurjati,Didact Gothic,Diplomata,Diplomata SC,Domine,Donegal One,Doppio One,Dorsa,Dosis,Dr Sugiyama,Droid Sans,Droid Sans Mono,Droid Serif,Duru Sans,Dynalight,Eagle Lake,Eater,EB Garamond,Economica,Ek Mukta,Electrolize,Elsie,Elsie Swash Caps,Emblema One,Emilys Candy,Engagement,Englebert,Enriqueta,Erica One,Esteban,Euphoria Script,Ewert,Exo,Exo 2,Expletus Sans,Fanwood Text,Fascinate,Fascinate Inline,Faster One,Fasthand,Fauna One,Federant,Federo,Felipa,Fenix,Finger Paint,Fira Mono,Fira Sans,Fjalla One,Fjord One,Flamenco,Flavors,Fondamento,Fontdiner Swanky,Forum,Francois One,Freckle Face,Fredericka the Great,Fredoka One,Freehand,Fresca,Frijole,Fruktur,Fugaz One,Gabriela,Gafata,Galdeano,Galindo,Gentium Basic,Gentium Book Basic,Geo,Geostar,Geostar Fill,Germania One,GFS Didot,GFS Neohellenic,Gidugu,Gilda Display,Give You Glory,Glass Antiqua,Glegoo,Gloria Hallelujah,Goblin One,Gochi Hand,Gorditas,Goudy Bookletter 1911,Graduate,Grand Hotel,Gravitas One,Great Vibes,Griffy,Gruppo,Gudea,Gurajada,Habibi,Halant,Hammersmith One,Hanalei,Hanalei Fill,Handlee,Hanuman,Happy Monkey,Headland One,Henny Penny,Herr Von Muellerhoff,Hind,Holtwood One SC,Homemade Apple,Homenaje,Iceberg,Iceland,IM Fell Double Pica,IM Fell Double Pica SC,IM Fell DW Pica,IM Fell DW Pica SC,IM Fell English,IM Fell English SC,IM Fell French Canon,IM Fell French Canon SC,IM Fell Great Primer,IM Fell Great Primer SC,Imprima,Inconsolata,Inder,Indie Flower,Inika,Irish Grover,Istok Web,Italiana,Italianno,Jacques Francois,Jacques Francois Shadow,Jim Nightshade,Jockey One,Jolly Lodger,Josefin Sans,Josefin Slab,Joti One,Judson,Julee,Julius Sans One,Junge,Jura,Just Another Hand,Just Me Again Down Here,Kalam,Kameron,Kantumruy,Karla,Karma,Kaushan Script,Kavoon,Kdam Thmor,Keania One,Kelly Slab,Kenia,Khand,Khmer,Khula,Kite One,Knewave,Kotta One,Koulen,Kranky,Kreon,Kristi,Krona One,La Belle Aurore,Laila,Lakki Reddy,Lancelot,Lateef,Lato,League Script,Leckerli One,Ledger,Lekton,Lemon,Liberation Sans,Libre Baskerville,Life Savers,Lilita One,Lily Script One,Limelight,Linden Hill,Lobster,Lobster Two,Londrina Outline,Londrina Shadow,Londrina Sketch,Londrina Solid,Lora,Love Ya Like A Sister,Loved by the King,Lovers Quarrel,Luckiest Guy,Lusitana,Lustria,Macondo,Macondo Swash Caps,Magra,Maiden Orange,Mako,Mallanna,Mandali,Marcellus,Marcellus SC,Marck Script,Margarine,Marko One,Marmelad,Martel Sans,Marvel,Mate,Mate SC,Maven Pro,McLaren,Meddon,MedievalSharp,Medula One,Megrim,Meie Script,Merienda,Merienda One,Merriweather,Merriweather Sans,Metal,Metal Mania,Metamorphous,Metrophobic,Michroma,Milonga,Miltonian,Miltonian Tattoo,Miniver,Miss Fajardose,Modak,Modern Antiqua,Molengo,Molle,Monda,Monofett,Monoton,Monsieur La Doulaise,Montaga,Montez,Montserrat,Montserrat Alternates,Montserrat Subrayada,Moul,Moulpali,Mountains of Christmas,Mouse Memoirs,Mr Bedfort,Mr Dafoe,Mr De Haviland,Mrs Saint Delafield,Mrs Sheppards,Muli,Mystery Quest,Neucha,Neuton,New Rocker,News Cycle,Niconne,Nixie One,Nobile,Nokora,Norican,Nosifer,Nothing You Could Do,Noticia Text,Noto Sans,Noto Serif,Nova Cut,Nova Flat,Nova Mono,Nova Oval,Nova Round,Nova Script,Nova Slim,Nova Square,NTR,Numans,Nunito,Odor Mean Chey,Offside,Old Standard TT,Oldenburg,Oleo Script,Oleo Script Swash Caps,Open Sans,Open Sans Condensed,Oranienbaum,Orbitron,Oregano,Orienta,Original Surfer,Oswald,Over the Rainbow,Overlock,Overlock SC,Ovo,Oxygen,Oxygen Mono,Pacifico,Paprika,Parisienne,Passero One,Passion One,Pathway Gothic One,Patrick Hand,Patrick Hand SC,Patua One,Paytone One,Peddana,Peralta,Permanent Marker,Petit Formal Script,Petrona,Philosopher,Piedra,Pinyon Script,Pirata One,Plaster,Play,Playball,Playfair Display,Playfair Display SC,Podkova,Poiret One,Poller One,Poly,Pompiere,Pontano Sans,Port Lligat Sans,Port Lligat Slab,Prata,Preahvihear,Press Start 2P,Princess Sofia,Prociono,Prosto One,PT Mono,PT Sans,PT Sans Caption,PT Sans Narrow,PT Serif,PT Serif Caption,Puritan,Purple Purse,Quando,Quantico,Quattrocento,Quattrocento Sans,Questrial,Quicksand,Quintessential,Qwigley,Racing Sans One,Radley,Rajdhani,Raleway,Raleway Dots,Ramabhadra,Ramaraja,Rambla,Rammetto One,Ranchers,Rancho,Ranga,Rationale,Ravi Prakash,Redressed,Reenie Beanie,Revalia,Ribeye,Ribeye Marrow,Righteous,Risque,Roboto,Roboto Condensed,Roboto Slab,Rochester,Rock Salt,Rokkitt,Romanesco,Ropa Sans,Rosario,Rosarivo,Rouge Script,Rozha One,Rubik Mono One,Rubik One,Ruda,Rufina,Ruge Boogie,Ruluko,Rum Raisin,Ruslan Display,Russo One,Ruthie,Rye,Sacramento,Sail,Salsa,Sanchez,Sancreek,Sansita One,Sarina,Sarpanch,Satisfy,Scada,Scheherazade,Schoolbell,Seaweed Script,Sevillana,Seymour One,Shadows Into Light,Shadows Into Light Two,Shanti,Share,Share Tech,Share Tech Mono,Shojumaru,Short Stack,Siemreap,Sigmar One,Signika,Signika Negative,Simonetta,Sintony,Sirin Stencil,Six Caps,Skranji,Slabo 13px,Slabo 27px,Slackey,Smokum,Smythe,Sniglet,Snippet,Snowburst One,Sofadi One,Sofia,Sonsie One,Sorts Mill Goudy,Source Code Pro,Source Sans Pro,Source Serif Pro,Special Elite,Spicy Rice,Spinnaker,Spirax,Squada One,Sree Krushnadevaraya,Stalemate,Stalinist One,Stardos Stencil,Stint Ultra Condensed,Stint Ultra Expanded,Stoke,Strait,Sue Ellen Francisco,Sunshiney,Supermercado One,Suranna,Suravaram,Suwannaphum,Swanky and Moo Moo,Syncopate,Tangerine,Taprom,Tauri,Teko,Telex,Tenali Ramakrishna,Tenor Sans,Text Me One,The Girl Next Door,Tienne,Timmana,Tinos,Titan One,Titillium Web,Trade Winds,Trocchi,Trochut,Trykker,Tulpen One,Ubuntu,Ubuntu Condensed,Ubuntu Mono,Ultra,Uncial Antiqua,Underdog,Unica One,UnifrakturCook,UnifrakturMaguntia,Unkempt,Unlock,Unna,Vampiro One,Varela,Varela Round,Vast Shadow,Vesper Libre,Vibur,Vidaloka,Viga,Voces,Volkhov,Vollkorn,Voltaire,VT323,Waiting for the Sunrise,Wallpoet,Walter Turncoat,Warnes,Wellfleet,Wendy One,Wire One,Yanone Kaffeesatz,Yellowtail,Yeseva One,Yesteryear,Zeyada]

//If you want to add a special character left or right, activate it here. Select wether it should be on the left or right side.
add_a_special_character="none"; //[left, right, none]

//... and select your special character, like a heart, etc.
special_character=9835;//[9829:Heart,8224:Cross,8592:Left arrow,8594:Right arrow,9834:Note,9835:Double note,9658:Thick right arrow,9668:Thick left arrow,9787:Full smiley,9788:Sun,9674:Diamond unfilled,9830:Diamond,9824:Spades,9827:Club,33:!,63:?,8593:Up arrow,8595:Down arrow]

// select distance of the special char from the text (in percent of the special char size)
distance_special_char = .6;

//Use a rounded base to connect all letters or use a connecting bar?
RoundedBase=0; //[0, 1]

//Shift the font up/down to connect i and j dots? Select "no" if you have no i or j in your text.
do_shift_font="automatic"; //[automatic,yes,no]

//Set font size in mm
textsize=16;

//Text height (extrusion) in mm
textheight=10;

//Connecting bar height (extrusion in print direction) in percent of the text height
baseheight_percent=.33;
baseheight=textheight*baseheight_percent;

//Connecting bar thickness in percent of the font size
basethickness_percent=0.1;
basethickness=textsize*basethickness_percent;

//Amount to shift the font up/down to connect i and j dots for printing.
font_catch_diacritical_sign=2.3;

//Only for a rounded base: Base increase size to make letters meet, in percent of the textsize
base_radius_add_percent=.1;
base_radius_add=textsize*base_radius_add_percent;

/* [Hidden] */
//-------------------------------------------------------------------------------

iorj = [ for (i = [0 : len(textstring) - 1]) if (textstring[i]=="i" || textstring[i]=="j") 1 ];

dummy_cutoutlen=len(textstring)*textsize;

specialcharsize = (add_a_special_character=="none" ? 0 : textsize*1.2) ;
distancespecialchar = specialcharsize*distance_special_char;
cutcube_x_nospecialchar=(len(textstring)+1)*textsize;
cutcube_x=cutcube_x_nospecialchar+specialcharsize+distancespecialchar;
cutcube_yz=textsize;

/*
Name and Text
Version F, March 2015
Written by MC Geisler (mcgenki at gmail dot com)

This is a proper configurable name plate, consisting of separate extruded letters. Use the variables to get the text you need.

Each letter and also the dots of 'i' and 'j' are connected together, so after printing it will not fall apart.

Use it to create mini name tags (the text in the picture is 9mm high) or big text sculptures!

Have fun!

License: Attribution 4.0 International (CC BY 4.0)

You are free to:
    Share - copy and redistribute the material in any medium or format
    Adapt - remix, transform, and build upon the material
    for any purpose, even commercially.
*/

module writetext(textstr, sizeit, add_a_special_character_connector)
{
    halignvalue = (add_a_special_character=="none" ? "center" : (add_a_special_character=="left" ? "left" : "right") );

    move_to_middle = (add_a_special_character=="left" ? -1 : 1)*(add_a_special_character=="none" ? 0 : cutcube_x_nospecialchar/4);

    translate([move_to_middle,0,0])
    {

        text(textstr,size=sizeit*.9,font=fontname,halign=halignvalue,valign="baseline");  //v = center

        if (add_a_special_character!="none")
        {
            translate([ (add_a_special_character=="left" ? -1 : 1)*distancespecialchar,0,0])
                text(chr(special_character),size=specialcharsize,font="Noto Symbols",halign="center",valign="baseline");

            if(add_a_special_character_connector==1)
            {
                connectorsize=specialcharsize*.3;

                translate([ -distancespecialchar, -connectorsize/2])
                    square([specialcharsize,connectorsize], center="true");
            }
        }
    }
}

module RiseText(textstr, textsize,textheight)
{

    linear_extrude(height=textheight,convexity = 10)
        writetext(textstr, textsize,0);

    //create base
    if(RoundedBase==0)
    {
        //base line to connect
        linear_extrude(height=baseheight, twist=0, slices=1, $fn=32)
            hull()
                intersection()
                {
                    writetext(textstr, textsize,1);

                    //translate([0,-textsize/2+basethickness/2+base_offset,0])
                    translate([0,basethickness/2,0])
                       square([dummy_cutoutlen,basethickness],center=true);
                }

        if ( (do_shift_font=="automatic" && iorj[0]==1) || do_shift_font=="yes")
        {
            //connect i and j dots
            assign(delta=textsize/30*font_catch_diacritical_sign)
               intersection()
               {
                   //connect the dots but maybe too much in other locations
                   linear_extrude(height=baseheight/2,convexity = 10)
                        offset(delta=-delta)
                            offset(delta=delta)
                                writetext(textstr, textsize,0);

                   //connect only vertical parts by shifting
                   linear_extrude(height=baseheight/2,convexity = 10)
                       for ( i = [-1 : 1] )
                           translate([0,i*delta,0])
                                writetext(textstr, textsize,0);
               }
       }

    }
    else
    {
                linear_extrude(height=baseheight, twist=0, slices=1, $fn=32)
                    offset(r = base_radius_add)
                    {
                        writetext(textstr, textsize,1);
                    }
    }

}

RiseText(textstring,textsize,textheight);

```


[User]
Okay, I'm looking to design a bike cable guide that clamps onto the frame. I have some ideas about how it should work, and I'm hoping you can help me generate the OpenSCAD code.

Essentially, it needs to be a split clamp design that goes around a cylindrical tube, like a bike frame bar. The clamp will have a channel for the cable(s) to run through, and a small cable tie section. I'd like to make it parametric so I can adjust it to fit different frame diameters, cable diameters, and potentially have multiple cable guides.

Here are the key parameters I'd like to be able to control:

*   `tube_diam`: The diameter of the bike frame bar the clamp will attach to.
*   `wall_width`: The thickness of the clamp material around the frame and cable channel.
*   `cabled`: The diameter of a single cable.
*   `cableww`: The width of the wall around a single cable channel.
*   `cangle`: The angle of the cable channel slope away from the frame.
*   `length`: The length of the clamp along the frame bar.
*   `tiew`: The width of the cable tie loops.
*   `tieh`: The height of the cable tie loops

The clamp should be made of two mirrored halves that meet around the bike frame. Each half will have a semi-circular cutout for the frame bar and one or more cable channels. The cable channel should have a sloped entry and exit to guide the cable in. There will also be a cable tie section on each half of the clamp, a circular loop shape to help secure the cable.

I’d like the code to be modular, so it should be easy to add more cable guide slots. For now a single cable guide and a single cable tie will suffice for each half of the clamp.

I haven’t used many external libraries before, but I think it would be useful for this design, especially for potentially rounding edges or adding threaded fasteners, later on. So for now, could you use the `BOSL2` library if it would be helpful?

Thanks a lot!

[Assistant]
clamp.scad:
```
tube_diam = 30;
wall_width = 2.5;

cabled = 5; //cable diameter
cabler = cabled /2;
cableww = 2; //cable wall width
cangle = 30;

length = 30;

//cable ties
tiew = 5;
tieh = 2;

loopd = cabled + cableww *2;

//maths
clampw = cabled+cableww*2;
tube_circum = 3.13159 * tube_diam;
// double clamp width
angle = 360 * clampw * 2 / tube_circum;

bracingr = tube_diam / 2 + wall_width;

module tubebody(){
	intersection() {
		cylinder(h = length, r = bracingr);
		translate([0,-clampw, 0])cube([bracingr, clampw *2, length]);
	}

}

//body no cutouts
module clamp_body_1() {
	$fn=32;
	translate([-cabler-cableww, -cabler - cableww,0])
		cube([cabler + cableww,cabled + cableww*2,length/2]);
	translate([0,cabler +cableww/2 , 0])
		cylinder(h = length/2, r = cableww/2);
	translate([0,-cabler- cableww/2 , 0])
		cylinder(h = length/2, r = cableww/2);
}

//cut out cable and slope
module clamp_body_2() {
	$fn=32;
	//cable
	difference(){
		clamp_body_1();
		cylinder(h= length, r = cabler);
		//slope
		translate([-cabler-cableww,0,0])
			rotate([0,cangle,0])
				translate([0,-cabled*3,0])
					cube([cabled*6,cabled*6,length]);
	}

}

//mirror for both sides
module clamp_body_3() {
	translate([0,0 ,length ])
	mirror([0, 0, 1])
	clamp_body_2();
	clamp_body_2();
}

module body_all(){
	tubebody();
	translate([bracingr  + wall_width,0 , 0])
		clamp_body_3();
}

module body_final() {
	difference() {
		body_all();
		cylinder(h = length, r = tube_diam/2 );

		//cable ties
		#translate([bracingr  + wall_width,0,length /2-tiew/2])cabletie();
	}

}

module cabletie() {
	difference() {
		cylinder(h = tiew, r = loopd/2 + tieh);
		cylinder(h = tiew, r = loopd/2 );
	}

}

body_final();
//cabletie();
//clamp_body_2();
```


[User]
Hey, I'm looking to design a stackable, self-watering plant pot system and I'd like your help creating the OpenSCAD files. I want each pot to be a single print-in-place piece, with a modern, slightly curved aesthetic. The pots should be designed so they can stack vertically, with each pot draining excess water into the one below it until it reaches a catchment dish at the bottom.

Here's the basic structure I'm envisioning, with parameters that should be easily adjustable:

**General/Global Parameters:**

*   `thickness`: This will be the overall thickness of all the walls and such in the design - I'd like to set a global default, but have it be used consistently through the design.
*   `finalPass`: A flag for whether to show the final design or individual parts - might be good for debugging.
*   `show_Part`: A way to view specific sections (pot, reservoir, internal workings, dish).
*   `resolution`:  A resolution variable controlling the smoothness of curves.

**Pot Parameters:**

*   `pot_diameter`: The overall diameter of the pot.
*   `pot_height`: The height of the main part of the pot.
*   `pot_curve`: Controls the curve of the pot sides (higher value = straighter).
*   `triPot_distance`: This parameter sets the radius for arranging the three curve sections of the pot.

**Water Reservoir Parameters:**

*   `waterRes_diameter`: The diameter of the inner water reservoir.
*   `waterRes_height`: The height of the water reservoir.
*    `waterRes_bottemGap`: The height of the gap at the base of the reservoir.
*    `waterBase_height`: The space between the base of the reservoir and the bottom of the pot, to prevent dirt from entering.
*   `waterSupport_amount`:  The number of supports around the reservoir's perimeter.

**Funnel Parameters:**

*   `funnel_diameter`: The diameter of the water funnel at the top of the reservoir.
*   `funnel_height`: The height of the funnel.
*   `funnel_hole`: The diameter of the hole within the funnel, that leads to the reservoir.

**Internal/Drain Parameters:**

*   `outlet_height`: The height at which the water starts to drain from one pot to the next.
*   `outlet_Diameter`: The diameter of the drain outlet.
*   `outlet_intake`: The diameter of the water intake hole for the drain.

**Dish Parameters:**

*   `dish_height`: The height of the catchment dish.
*   `dish_support_width`: Width of support on dish.
*   `dish_support_height`: Height of support on dish.
*    `dish_support_length`: Length of support on dish.
*   `dish_support_distant`: Distance of support from center on dish.
*   `dish_support_amount`: Amount of support on the dish.

**Final/Main Control Parameter:**

*   `part`:  Selects whether to generate the pot or the dish part.

The pots themselves should have a rounded, triangular shape created by combining three curved segments. Water should be poured into the funnel at the top, which feeds into the reservoir. Excess water will drain down through an outlet in the bottom of the pot to the next pot below (or the dish if it is the bottom pot), and these parts all need to be hollow or cut out, for proper printing.

I think it will need several modules. You should have separate modules for:

*   Creating the triangular pot structure (`triPot`) using a combination of spheres and cubes.
*   Creating the water reservoir and supports (`waterRes`, `waterResSup`).
*   Creating the water intake funnel (`flange`).
*   Creating the water outlet/drain (`outletInt`, `outletExt`).
*   Creating the base of the pot (`waterBase`).
*   Creating the catchment dish (`catchment`) with its supports (`triPotDish` and `dish...` modules).

Also, I'd like to use `difference()` and `union()` effectively to make the structure hollow and for adding parts.

I hope that's enough detail. Let me know if you have any questions.

[Assistant]
stackable_SelfWatering_Pot.scad:
```
/* [Global] */

// set this to "Checked" this before you create your object
finalPass = "uncheck"; //[checked:Checked,uncheck:Unchecked]
// Which area would you like to see?
show_Part = "all"; // [first:Pot Only,second:Water Reservoir Only,three:Internal Only,all:Pot All,dish:Dish]
// Thickness of the entire model
thickness = 2.5;

/* [Pot] */

pot_diameter = 80;
pot_height = 70;
//The larger the number, the straighter the curve
pot_curve = 100;
//The distance each pot is moved from the center
triPot_distance = 30;

/* [Water Reservoir] */

waterRes_diameter = 60;
waterRes_height = 57;
//Height of the gap at the base of the reservoir
waterRes_bottemGap = 6;
//Space between the of the reservior and bottem, this stops dirt from coming in
waterBase_height = 7;
//The amount of supports that are around the reservoir
waterSupport_amount = 25;

funnel_diameter = 20;
//Make sure that this value is 3mm from the top of the pot
funnel_height = 10;
//Hole size for the funnel intake
funnel_hole = 10;

/* [internal] */

//This is the height when the water starts to drain
outlet_height = 20;
//Size of the drain
outlet_Diameter= 5;
//Size of the water intake hole for the drain
outlet_intake = 5;

/* [Dish] */

dish_height = 15;

dish_support_width = 25;
dish_support_height = 3;
dish_support_length = 10;
dish_support_distant = 30;
dish_support_amount = 6;

/* [final] */

// Used to generate the pot and dish
part = "pot"; //[pot:Pot,dish:Dish]
// How high poly will it be
resolution = 40;

/* [Hidden] */

$fn = resolution;

//making pot
union()
{
	if(finalPass == "checked")
	{
		difference()
		{
			union()
			{
				if(part == "pot")
				{
					triPot();
				}
				if(part == "pot")
				{
					waterBase();
				}
			}

			if(part == "pot")
			{
				outletInt();
			}

			if(part == "pot")
			{
				rotate([0,0,60])
				 	translate([0,0,-pot_height+thickness])
						triPot();
			}
		}

		if(part == "pot")
		{
			waterRes();
			waterResSup();
			flange();
			outletExt();
		}

		if(part == "pot")
		{
			outletExt();
		}

		if(part == "dish")
		{
			catchment();
		}

	}
	else
	{
		difference()
		{
			union()
			{
				if(show_Part == "first" || show_Part == "all")
				{
					triPot();
				}
				if(show_Part == "second" || show_Part == "three" || show_Part == "all")
				{
					waterBase();
				}
			}

			if(show_Part == "first" || show_Part == "second" || show_Part == "three" || show_Part == "all")
			{
				outletInt();
			}

			if(show_Part == "all")
			{
				rotate([0,0,60])
				 	translate([0,0,-pot_height+thickness])
						triPot();
			}
		}

		if(show_Part == "second" || show_Part == "all")
		{
			waterRes();
			waterResSup();
			flange();
			outletExt();
		}

		if(show_Part == "second" || show_Part == "three" || show_Part == "all")
		{
			outletExt();
		}

		if(show_Part == "dish")
		{
			catchment();
		}
	}
}

module catchment()
{
	union()
	{

		triPotDish();

		for ( i = [0 : dish_support_amount] )
		{
			rotate( i * 360 / dish_support_amount, [0, 0, 1])
				translate([dish_support_distant,-dish_support_width/2,-dish_height + thickness])
		    			cube([dish_support_length,dish_support_width,dish_support_height]);
		}
	}
}

// pot outlet
module outletInt()
{
	union()
	{
		translate([0,0,-pot_height-0.2])
			cylinder(outlet_height+thickness*2+outlet_intake+0.4, outlet_Diameter/2, outlet_Diameter/2, false);

		translate([0,0,-pot_height+ thickness*2+ outlet_height+ outlet_intake/2- 0.1])
			rotate ([0,90,0])
				cylinder(outlet_height+0.2, outlet_intake/2, outlet_intake/2, true);
	}
}

module outletExt()
{
	difference()
	{
		translate([0,0,-pot_height+0.1])
			cylinder(outlet_height+thickness*3+outlet_intake+0.4, outlet_Diameter/2+thickness, outlet_Diameter/2+thickness, false);

		outletInt();
	}
}

module flange()
{
	difference()
	{
		translate([0,0,-pot_height + waterRes_height])
			cylinder(funnel_height, funnel_hole/2+thickness, funnel_diameter/2+thickness, false);

		translate([0,0,-pot_height + waterRes_height-0.1])
			cylinder(funnel_height+0.2, funnel_hole/2, funnel_diameter/2, false);
	}
}

// for the resouver
module waterRes()
{
	union()
	{
		waterResExt();
		waterResSup();
	}
}

module waterResSup()
{
	for ( i = [0 : waterSupport_amount] )
	{
	    rotate( i * 360 / waterSupport_amount, [0, 0, 1])
	    translate([0, waterRes_diameter/2-thickness*2, -pot_height + thickness*2])
	    cube([thickness,thickness*2,waterRes_bottemGap]);
	}
}

module waterResExt()
{
	difference()
	{
		translate([0,0,-pot_height + (thickness*2 + waterRes_bottemGap)])
			cylinder(waterRes_height - (thickness*2 + waterRes_bottemGap), waterRes_diameter/2, funnel_hole/2+thickness, false);

		translate([0,0,-pot_height + (thickness*2 + waterRes_bottemGap) -0.1])
			cylinder(waterRes_height - (thickness*2 + waterRes_bottemGap) +0.2, waterRes_diameter/2-thickness, funnel_hole/2, false);
	}
}

module waterBase()
{
	translate([0,0,-pot_height + thickness*2-0.2])
		cylinder(waterBase_height+0.2, waterRes_diameter/2, waterRes_diameter/2-waterBase_height, false);
}

// for makeing the pot
module triPot()
{
	difference()
	{
		union()
		{
			for ( i = [0 : 2] )
			{
				potExternal(triPot_distance,i*120);
			}
		}

		union()
		{
			for ( i = [0 : 2] )
			{
				potInternal(triPot_distance,i*120);
			}
		}
	}
}

module potExternal(distance, rot)
{
	difference()
	{
		//sphere outer
		rotate([0,0,rot])
			translate([distance,0,0])
				resize([pot_diameter,pot_diameter,pot_curve*2])
					sphere(1);

		//top cap
		rotate([0,0,rot])
			translate([distance-pot_diameter/2-2,-pot_diameter/2-2,0])
				cube([pot_diameter+4,pot_diameter+4,pot_curve+0.1]);

		//base cap
		rotate([0,0,rot])
			translate([distance-pot_diameter/2,-pot_diameter/2,-pot_height-pot_curve])
				cube([pot_diameter,pot_diameter,pot_curve-0.1]);
	}
}

module potInternal(distance, rot)
{
	difference()
	{
		// draws internal sphere
		rotate([0,0,rot])
			translate([distance,0,0])
				resize([pot_diameter-thickness*2,pot_diameter-thickness*2,pot_curve*2])
					sphere(1);

		//base with thickness
		rotate([0,0,rot])
			translate([distance-pot_diameter/2,-pot_diameter/2,-pot_height-pot_curve+thickness*2])
				cube([pot_diameter,pot_diameter,pot_curve-0.1]);
	}
}

module triPotDish()
{
	difference()
	{
		union()
		{
			for ( i = [0 : 2] )
			{
				dishExternal(triPot_distance,i*120);
			}
		}

		union()
		{
			for ( i = [0 : 2] )
			{
				dishInternal(triPot_distance,i*120);
			}
		}
	}
}

module dishExternal(distance, rot)
{
	difference()
	{
		//sphere outer
		rotate([0,0,rot])
			translate([distance,0,0])
				resize([pot_diameter,pot_diameter,pot_curve*2])
					sphere(1);

		//top cap
		rotate([0,0,rot])
			translate([distance-pot_diameter/2-2,-pot_diameter/2-2,0])
				cube([pot_diameter+4,pot_diameter+4,pot_curve+0.1]);

		//base cap
		rotate([0,0,rot])
			translate([distance-pot_diameter/2,-pot_diameter/2,-dish_height-pot_curve])
				cube([pot_diameter,pot_diameter,pot_curve-0.1]);
	}
}

module dishInternal(distance, rot)
{
	difference()
	{
		// draws internal sphere
		rotate([0,0,rot])
			translate([distance,0,0])
				resize([pot_diameter-thickness*2,pot_diameter-thickness*2,pot_curve*2])
					sphere(1);

		//base with thickness
		rotate([0,0,rot])
			translate([distance-pot_diameter/2,-pot_diameter/2,-dish_height-pot_curve+thickness])
				cube([pot_diameter,pot_diameter,pot_curve-0.1]);
	}
}
```