[User]
Okay, so I'm trying to design a bed clamp for my 3D printer, a Mendel90. I've already made one that works using OpenSCAD, but I'd like a more robust, parametrically designed version that I can more easily customize. I'm not an expert in CAD, so I'm hoping you can help me generate a new, improved version as an OpenSCAD file.

Here are the basic requirements:

**Functionality:**
The clamp needs to hold the print bed securely. It's a fairly simple design; it basically hooks under the edge of the bed and then uses a top arm and a bottom arm to apply pressure against the side of the bed frame.  The design has to leave some space for the printer fan, since the existing design works but only barely.

**Existing Parameters:**
I already have some parameters that I've worked out, and I'd like to be able to adjust these in the new file:

*   `laenge`: Length of the clamp.
*   `wbase`: Width of the base of the clamp (the part that sits flush against the side of the printer frame).
*   `warmtop`: Width of the top arm (the section that goes over the bed).
*   `warmbottom`: Width of the bottom arm (the section that goes under the bed).
*   `hbed`: Height of the bed (this will need to have the compression from the clamp factored in).
*   `harmtop`: Height of the top arm.
*   `harmbottom`: Height of the bottom arm.

**Design:**

The design should use a 2D polygon extruded linearly. The basic shape is a U shape with two arms that extend at the open end of the U. One arm hooks over the top of the bed, the other goes below it.

I've found that the top arm needs to have a slight slope down as you move away from the base, and the same goes for the bottom arm. The curves between the base and arms are what allows them to clamp securely.

**Additional Features:**

*   I'd like the arms to have a slightly curved or angled profile at the ends that contact the bed, rather than a sharp, square edge, to distribute pressure a bit better and make insertion easier.
*   It would be fantastic if the code was well commented, to help me learn from it.
* It would be nice if there is a way to adjust the offset for both arms from the side of the base, the top one has a 1mm offset (it starts at (0,1)) and the bottom is 0mm.
* It would be nice if the curves between the arms and base where configurable, I've found a 0.5mm curve on the arms works well and a 1mm curve between the base and the bed

**Libraries**

I think that I will need basic functionality for generating the curves so I don't think any external libraries will be required.

Could you help me create an OpenSCAD file that takes these parameters into account? I'm looking for something that is easy to understand and adapt to my specific needs.

[Assistant]
BettKlammerSMUK.scad:
```
//DIe Laenge der Klammer
laenge=30;

//Weite der Basis
wbase=8;
//Weite des Arms oben (der Druckpunkt liegt etwas zurueck)
warmtop=14;
//Weite des Arms unten
warmbottom=14;

// Betthoehe (der Druck muss selbst eingerechnet werden zB 0.6 abziehen)
hbed=4.3;
//Hoehe Arm oben (mehr als 4 geht beim Mendel90 nicht)
harmtop=3.6;
//Hoehe Arm unten
harmbottom=5;

hall=hbed+harmtop+harmbottom;

	      	linear_extrude(height=laenge)
		      polygon(
		         points=[[0,1],
                       [0,hall-1],
                       [1,hall],
                       [wbase,hall],
                       [wbase+warmtop-1,hall],
                       [wbase+warmtop,hall-1],
                       [wbase+warmtop,hall-harmtop+1],
                       [wbase+warmtop-1,hall-harmtop],
                       [wbase+warmtop-3,hall-harmtop+0.05],
                       [wbase+warmtop-8,hall-harmtop+0.5],
                       [wbase,hall-harmtop+0.5],

                       [wbase,harmbottom-0.5],
                       [wbase+warmbottom-8,harmbottom-0.5],
                       [wbase+warmbottom-3,harmbottom-0.05],
                       [wbase+warmbottom-1,harmbottom],
                       [wbase+warmbottom,harmbottom-1],
                       [wbase+warmbottom,1],
                       [wbase+warmbottom-1,0],
                       [wbase,0],
                       [1,0]

                       ]
                   );

```


[User]
I need a parametric design for a wire hook, something I can 3D print. I've got a basic idea, but I want to make sure it's flexible enough for different situations.

Essentially, the hook should have a rounded portion for the wires to rest on and a straight mounting section with a hole for a screw. The key parameters I need to control are:

*   **`hookRadius`:** The radius of the rounded hook portion. This will determine how far out the hook extends.
*   **`width`:** The width of the hook itself - both the rounded and mounting sections. This will affect the number of wires it can hold.
*   **`thickness`:** The thickness of the hook. I need this to control how strong it is.
*   **`holeRadius`:** The radius of the mounting hole for the screw.
*   **`height`:** The height of the mounting section.

I’m imagining the rounded section created using a `rotate_extrude` operation on a rectangle, with a `difference()` to remove the bulk. Then, the mounting section as a cube with another `difference()` to create the hole. I'd like the screw hole to be countersunk as well, for a flush fit with the screw head. Make sure it's a smooth countersink.

I want all of these to be controlled by variables at the top of the file, so I can easily adjust them. Also, it would be nice if the code was well-commented, so I can understand what's going on.

Could you generate an OpenSCAD file for this design?

[Assistant]
wire_hook.scad:
```
// Radius of hook [mm]
hookRadius=25;
// Width of hook [mm]
width=12;
//Thickness of hook [mm]
thickness=5;
// Radius of mounting hole [mm]
holeRadius=2.6;
// height of mounting section [mm]
height=60;

union() {

	difference() {
		rotate_extrude(convexity = 10,$fn=50)
		translate([hookRadius, 0, 0])
		square([thickness,width]);

		translate([0,0,-1])
		cube([hookRadius*2,hookRadius*2,width+2]);
	}

	difference() {
		translate([hookRadius,0,0])
		cube([thickness,height,width]);

		translate([hookRadius-1,height-max(holeRadius*2, width/2),width/2])
		rotate([90,0,90])
		cylinder(r=holeRadius,h=thickness+2,$fn=20);
		translate([hookRadius-0.01,height-max(holeRadius*2, width/2),width/2])
		rotate([90,0,90])
		cylinder(r1=4.8,r2=0,h=min(thickness/2, 5));
	}
}
```


[User]
Hey, I'm looking for some help designing a 3D printable pentagram tree topper. I've got some ideas about how I'd like it to look and some key dimensions I want to be able to adjust.

Here's the basic idea: it's a five-pointed star, made of five elongated diamond-ish shapes connected together, kind of like how you'd draw one without lifting your pen. I'd like to be able to change:

*   `length`: the length of one of the "sides" of the star (i.e., one of those diamond-ish things).
*   `thickness`: how thick the star is horizontally, or, put another way, the width of those diamond-ish things.
*  `height`: how tall the star is vertically (essentially, the height of those diamond shapes.
* `hole`: the diameter of the hole in the bottom, so it can be attached to the top of the tree.

I want a central hole in the base of the star, so it can sit on top of a Christmas tree (or Yule tree, whatever you prefer).

Could you generate a parametric OpenSCAD file that I can use? I don't have any existing code, just this description.

[Assistant]
pentagram.scad:
```
//Customizable Pentagram Yule Tree Topper
//Created by Ari M. Diacou, January 2014
//Shared under Creative Commons License: Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0)
//see http://creativecommons.org/licenses/by-sa/3.0/

// preview[view:south, tilt:top diagonal]
//The length of one of the sides of the star
length=5;
//The thickness of one of the sides of the star
thickness=.1;
//The height of one of the sides of the star
height=.4;
//The diameter of the hole for the tree topper
hole=.3;

/* HIDDEN */
angle=36+0;
phi=(1+sqrt(5))/2;
a=length/(2*phi+1);
r=length*cos(angle)/((4*phi+2)*sin(angle));

module side(){
	mirror([0,1,0]){
		difference(){
			cube([length,thickness,height]);
			rotate([0,0,angle])
				cube([thickness/sin(angle),thickness,height]);
			translate([length,0,0])
				mirror([1,0,0]){
					rotate([0,0,angle])
						cube([thickness/sin(angle),thickness,height]);
					}
			}
		}
	}

difference(){
	for(i=[1:5]){
	   rotate([0,0,i*2*angle])
			translate([-length/2,r,0])
				side();
		}
	translate([0,r+thickness/100,height/2])
		rotate([90,0,0])
			cylinder(r=hole/2,h=length, $fn=20);
	}

```


[User]
Hey, I'm trying to design a parametric pillow block for an 8mm bearing that will work with OpenBeam. I've been messing around in Designspark, and I also found a scad file online that I was trying to adapt, but I'd really like to have a well-written and parameterized OpenSCAD version instead.

Here's the basic idea:

*   **Bearing:** It needs to hold an 8mm OD bearing. I'd like to have a parameter for the bearing outer diameter, so it's not hardcoded. I'm thinking that this should also have a small tolerance built in.
*   **Mounting:** It needs mounting holes for OpenBeam. That means 3.2mm diameter mounting holes, spaced 30mm apart. Also, it should have countersinks for the bolt heads, ideally 6.5mm diameter and going down to a thickness of 2mm.
*   **Pillow Block Shape:** The main part of the pillow block should be 15mm thick. There should be 5mm of material around the bearing itself, and there should be a parameter for the base thickness. I think 5mm is fine for now.
*   **Fillets:** There should be fillets between the base and the main bearing holder, say 5mm radius.
*   **Chamfers:** I'd also like 2mm chamfers on the four corners of the base.
*   **Set Screws:** And this is the tricky bit, I'd like to have some set screw holes on the side, so the bearing can be secured in place. It should be parameterized, so I can set the diameter of those screws, but if it's set to 0 it should be removed from the model.
* **Lip:** I want to be able to optionally have a small lip on one or both sides of the bearing, that will hold it in place. The amount the lip intrudes on the bearing space should be adjustable, as well as the lip's thickness.

I'm hoping to be able to generate an scad file or files which makes use of the following libraries: *BOSL2*.

Could you generate the necessary OpenSCAD code for me?

[Assistant]
PillowBlock-v2.scad:
```
// in mm	(include tolerance for printing)
bearing_outer_diameter = 8.5;
// center axis of bearing to mounting surface
bearing_center_height = 15;

// in mm (for openbeam, 15 or 14)
bearing_block_thickness = 15;
// mm of material around bearing (wall thickness)
bearing_OD_pillowblock_thickness = 5;

// diameter of the mounting bolt holes 	(for openbeam, 3.2)
mounting_hole_diameter=3.2;
// distance between mounting holes 		(for openbeam, 30)
mounting_hole_spacing = 30;
//Diameter of bolt head (for openbeam, 6.5)
countersink_diameter = 6.5;
// Countersink until this thickness is remaining (for openbeam, 2)
countersink_thickness = 2;

// Diameter of set screws holes on the sides (0 to remove)
set_screw_diameter = 0;

// thickness of base of pillow block
base_thickness = 5;
//fillet between base and bearing
base_fillet_radius = 5;
// the four clipped corners
base_chamfer_size = 2;

// lip intrusion into bearing holder
lip_size = 0;
// lip thickness for holding the bearing in place
lip_thickness = 0;

r=bearing_outer_diameter/2 + bearing_OD_pillowblock_thickness;  // outer radii, this should be calculated based on the desired hole size

$fn = 100;

difference()
{
	difference()
	{
		union()
		{
			linear_extrude(height=bearing_block_thickness, center=true, convexity=10, twist=0)
			{
				difference()
				{
					union()
					{
						translate([0,base_thickness/2]) 						// base
							square([mounting_hole_spacing+bearing_block_thickness,base_thickness], center=true);
						translate([0,bearing_center_height])					// main bearing block
							circle(r=r);
				   		translate([0,bearing_center_height/2])
							square([2*r,bearing_center_height], center=true);  // fillet to main bearing block
				 	  	translate([0,base_thickness+(base_fillet_radius/2)])
							square([2*r+(2*base_fillet_radius),base_fillet_radius], center=true); // fillet to base
					}
					translate([r+base_fillet_radius,base_fillet_radius+base_thickness])
						circle(r=base_fillet_radius);							// fillet 1
					translate([-(r+base_fillet_radius),base_fillet_radius+base_thickness])
						circle(r=base_fillet_radius);							// fillet 2
					translate([0,bearing_center_height])
						circle(r=bearing_outer_diameter/2);					// main bearing hole
					translate([0,-base_thickness/2]) 							// area below the base (cleanup)
						square([mounting_hole_spacing+15,base_thickness], center=true);
				}
			}
			// the lip
			translate([0,bearing_center_height, (bearing_block_thickness/2)-lip_thickness])
				cylinder(r=(bearing_outer_diameter/2)*1.1,h=lip_thickness);
		}
		// hole in the lip
		translate([0,bearing_center_height,0])
			cylinder(r=(bearing_outer_diameter/2)-lip_size,h=bearing_block_thickness*2);
	}
	union()
	{
		// Mounting Holes
		translate([mounting_hole_spacing/2,-1,0])
			rotate([-90,0,0])
				cylinder(r=mounting_hole_diameter/2,h=base_thickness+2);
		translate([mounting_hole_spacing/-2,-1,0])
			rotate([-90,0,0])
				cylinder(r=mounting_hole_diameter/2,h=base_thickness+2);
		// Countersink
		translate([mounting_hole_spacing/2,countersink_thickness,0])
			rotate([-90,0,0])
				cylinder(r=countersink_diameter/2,h=bearing_center_height*2);
		translate([mounting_hole_spacing/-2,countersink_thickness,0])
			rotate([-90,0,0])
				cylinder(r=countersink_diameter/2,h=bearing_center_height*2);
	}
	union()
	{
		//Base Chamfers
		translate([(mounting_hole_spacing+bearing_block_thickness)/2,base_thickness/2,bearing_block_thickness/2])
			rotate([0,45,0])
				cube([base_chamfer_size/sin(45),base_thickness*1.1,base_chamfer_size/sin(45)], center=true);
		translate([(mounting_hole_spacing+bearing_block_thickness)/2,base_thickness/2,bearing_block_thickness/-2])
			rotate([0,45,0])
				cube([base_chamfer_size/sin(45),base_thickness*2,base_chamfer_size/sin(45)], center=true);
		translate([(mounting_hole_spacing+bearing_block_thickness)/-2,base_thickness/2,bearing_block_thickness/2])
			rotate([0,45,0])
				cube([base_chamfer_size/sin(45),base_thickness*2,base_chamfer_size/sin(45)], center=true);
		translate([(mounting_hole_spacing+bearing_block_thickness)/-2,base_thickness/2,bearing_block_thickness/-2])
			rotate([0,45,0])
				cube([base_chamfer_size/sin(45),base_thickness*2,base_chamfer_size/sin(45)], center=true);

	}
	union()
	{
		//Set screws
		translate([-bearing_OD_pillowblock_thickness - (bearing_outer_diameter),bearing_center_height,-lip_size/2])
			rotate([0,90,0])
				cylinder(h=(bearing_outer_diameter+bearing_OD_pillowblock_thickness)*2, r=set_screw_diameter/2);
	}
}
```


[User]
Okay, I'm trying to design a customizable, recursive tree structure in OpenSCAD. I'd like to have a base trunk cylinder, and then branches that grow out recursively from that trunk, and then more branches from those branches, etcetera. Each branch should also be a cylinder, and at the tip of each cylinder, I'd like to have a sphere.

Here are the key parameters I'm thinking about:

*   **`level`**: This is the recursion depth, controlling how many levels of branches there are.
*   **`base_radius`**: The radius of the base cylinder.
*   **`base_height`**: The height of the base cylinder.
*   **`scale_radius`**: A scaling factor applied to the radius of each subsequent cylinder (branch).
*   **`scale_height`**: A scaling factor applied to the height of each subsequent cylinder (branch).
*   **`branch_angle`**: The angle of the branches relative to the previous level. This could be a fixed value, or a range.
*   **`branch_count`**: The number of branches at each level. This could also be a fixed value or a range, or even a specific distribution.
*   **`branch_radius_variation`**: A random variation factor to apply to branch radii
*   **`branch_height_variation`**: A random variation factor to apply to branch heights
*   **`branch_count_variation`**: A random variation factor to apply to branch counts

I'd like the spheres at the end of the branches to scale with the branch radius or some combination of radius and height (maybe the average). And it would be really great if there were some additional spheres placed at the tip of the branches at levels 1 and 2 but at a smaller scale than the terminal spheres.

I think that having random elements in the branch radius, height, count, and angle would make things look more tree-like. I'm imagining that these random values are sampled using `rands()`, which means I think it would be necessary to use `$preview` to ensure things don't change when rendering the same design repeatedly.

Could you generate the OpenSCAD code for this? I'm not using any libraries, so you'll have to start from scratch. It would be ideal if the different parameters were easily modifiable so I could play around with the design.

[Assistant]
RandomRecursiveTree.scad:
```
module rec(level=4, rr=2, lh=10, c=3, a=30, scale=0.8) {
  echo(level, rr, lh, c, a);
  cylinder(r1=rr, r2=rr*scale, h=lh);
  translate([0,0,lh]) sphere(rr*scale);
  if (level==1) translate([0,0,scale*lh]) sphere(lh/2);
  if (level==2) translate([0,0,(1+scale)*lh]) sphere(lh/2);
  if (level > 1) {
    translate([0,0,lh]) {
      for (r=[360/c:360/c:360])
        rotate([0,a,r])
			 rec(level=level-1, rr=rr*rands(0.5,1,1)[0],
				lh=lh*rands(0.5,1,1)[0], c=floor(rands(2,6,1)[0]));
    }
  }
}

rec(c=5,$fn=32);
```


[User]
Hey there, I'm looking for a parametric design for rings and tubes, something that can be used for jewelry, calibration prints, or even connecting tubing. I'd like to be able to specify the type of ring (cylinder, toroid, or rounded cylinder), the inner diameter, the thickness, and the height.

Specifically, I want three different options for the ring:

1.  **Cylinder:** Just a basic hollow cylinder.
2.  **Toroid:** A ring-shaped torus.
3.  **Rounded Cylinder:** A cylinder with rounded edges on the top and bottom, creating a sort of pill-shaped ring.

I'd like to be able to control the following parameters:

*   `Type`: An integer that selects the ring type (0 for cylinder, 1 for toroid, 2 for rounded cylinder).
*   `Inner_Diameter`: The inner diameter of the ring in millimeters.
*   `Thickness`: The thickness of the ring wall in millimeters.
*   `Height`: The height of the ring in millimeters.

I don't really have a strong preference on which library to use, but I think something well-documented would be great! I'm comfortable with `$fn` for controlling resolution.

I'd really appreciate it if you could put together an OpenSCAD file, or files if needed, that does this.

[Assistant]
ring.scad:
```
// Copyright (c) 2013 by Jean-Louis Paquelin (jlp6k).
// This work is licensed under the Creative Commons Attribution
// Partage dans les Mêmes Conditions 3.0 France License.
// To view a copy of this license, visit http://creativecommons.org/licenses/by-sa/3.0/fr/
// CC-BY-SA

// Created 2014-01-02
// Last modified 2014-01-02

// dimensions are set in millimeters

Type = 1; // [0: cylinder, 1: toroid, 2: rounded_cylinder]
Inner_Diameter = 18;
Thickness = 3;
Height = 8;

ring(Type, Inner_Diameter, Thickness, Height);

module ring(type, inner_diameter, thickness, height) {
    if(type == 0) {
        difference() {
            cylinder(h = height, r = (inner_diameter / 2) + thickness, center = true, $fn = 100);
            cylinder(h = height + 1, r = inner_diameter / 2, center = true, $fn = 100);
        }
    } else if(type == 1) {
        rotate_extrude(convexity = 10, $fn = 100)
            translate([(inner_diameter + thickness) / 2, 0, 0])
                scale([thickness / height, 1, 1])
                    circle(r = height / 2, $fn = 100);
    } else {
        union() {
            difference() {
                cylinder(h = height - thickness, r = (inner_diameter / 2) + thickness, center = true, $fn = 100);
                cylinder(h = height + 1, r = inner_diameter / 2, center = true, $fn = 100);
            }
            // top
            translate([0, 0, (height - thickness) / 2])
                rotate_extrude(convexity = 10, $fn = 100)
                    translate([(inner_diameter + thickness) / 2, 0, 0])
                        circle(r = thickness / 2, $fn = 100);
            // bottom
            translate([0, 0, -(height - thickness) / 2])
                rotate_extrude(convexity = 10, $fn = 100)
                    translate([(inner_diameter + thickness) / 2, 0, 0])
                        circle(r = thickness / 2, $fn = 100);
        }
    }
}

```


[User]
Okay, I'm looking to create a customizable business card holder with a layered logo, and I need your help generating the OpenSCAD files. I've already got a basic idea of the shape and how the color layers should work from a file I found online, but I need it to be fully parametric.

Here's the breakdown of what I'm trying to achieve:

**Overall Shape:**

*   The holder should be a rectangular box with rounded corners.
*   It needs a slot cut out of the front at an angle to hold the business cards. This slot shouldn't go all the way through.
*   There should be a space on the front of the holder to imprint the logo with multiple colors.

**Parameters:**

I want to be able to control these dimensions:

*   `holder_x`: The overall length of the card holder.
*   `holder_y`: The overall width of the card holder.
*   `holder_z`: The overall height of the card holder.
*   `card_x`: The length of the card slot cutout.
*   `card_y`: The width of the card slot cutout.
*   `card_z`: The depth of the card slot cutout.
*   `corner_radius`: The radius of the rounded corners.
*   `logo_x`: The length of the logo area.
*   `logo_y`: The width of the logo area.
*   `z_height_one`: The height of the first logo layer (and pause height for the first filament color change).
*   `z_height_two`: The height of the second logo layer (and pause height for the second filament color change).
*   `tone_one`: The filename for the first logo image. (Image size will be 150x40 pixels and will be scaled to fit within the `logo_x` and `logo_y` dimensions.)
*   `tone_two`: The filename for the second logo image. (Image size will be 150x40 pixels, also scaled to fit within `logo_x` and `logo_y`.)

**Layered Logo:**

*   The logo should be created by layering two separate, 150x40 pixel, black and white images, with the white parts being raised.
*   These images are to be loaded as surfaces.
*   The first image's surface should be extruded to `z_height_one`.
*   The second image's surface should be extruded to `z_height_two` and be on top of the first layer.
*   I need to flip the logo so that it appears correctly.
*   The two layers need to be centered on the front of the holder.

**Other considerations:**

*   The card slot cut needs to be angled.
*   The base of the cardholder needs to have a slight angle to it as well.
*   I don't want any libraries that aren't part of the core OpenSCAD installation.

Could you create the necessary OpenSCAD file(s) to achieve this? Let me know if you have any questions.

[Assistant]
tricolor_card_holder.scad:
```
// preview[view:south, tilt:bottom]

/* [Color One] */

// Load a 150x40 pixel image. This is the artwork for the first colour in the logo. The background should be black and the logo white. If not, make sure to click the Invert Colors checkbox.
tone_one = "tone_one.dat"; // [image_surface:150x40]

// What Z height would you like to pause the printer to change the filament for the first logo color (mm)?
z_height_one = 0.6;

/* [Color Two] */

// Load a  150x40 pixel image. This is the artwork for the second colour in the logo. The background should be black and the logo white. If not, make sure to click the Invert Colors checkbox.
tone_two = "tone_two.dat"; // [image_surface:150x40]

// What Z height would you like to pause the printer to change the filament for the second logo color (mm)?
z_height_two = 1.2;

/* [Hidden] */

holder_x = 100;
holder_y = 50;
holder_z = 25;
card_x = 91;
card_y = 13;
card_z = 22;
corner_radius = 5;
box_x = holder_x - (corner_radius * 2);
box_y = holder_y - (corner_radius * 2);
face_z = z_height_one + z_height_two;
offset_x = (holder_x / 2) - corner_radius;
offset_y = (holder_y / 2) - corner_radius;
logo_x = 90;
logo_y = 24;
scale_x = 150;
scale_y = 40;

difference() {
	translate([0, 0, face_z]) {
		translate([0, 0, -(face_z/2)]) {
			cube([box_x, holder_y, face_z], center=true);
			cube([holder_x, box_y, face_z], center=true);
			translate([ offset_x,  offset_y, 0]) cylinder(h=face_z, r=corner_radius, center=true);
			translate([-offset_x,  offset_y, 0]) cylinder(h=face_z, r=corner_radius, center=true);
			translate([ offset_x, -offset_y, 0]) cylinder(h=face_z, r=corner_radius, center=true);
			translate([-offset_x, -offset_y, 0]) cylinder(h=face_z, r=corner_radius, center=true);
		}
		translate([0, -holder_y / 2, -0.01]) scale([1, 0.898, 1]) rotate([-26, 0, 0]) difference() {
			translate([0, holder_y / 2, holder_z/2]) {
				cube([box_x, holder_y, holder_z], center=true);
				cube([holder_x, box_y, holder_z], center=true);
				translate([ offset_x,  offset_y, 0]) cylinder(h=holder_z, r=corner_radius, center=true);
				translate([-offset_x,  offset_y, 0]) cylinder(h=holder_z, r=corner_radius, center=true);
				translate([ offset_x, -offset_y, 0]) cylinder(h=holder_z, r=corner_radius, center=true);
				translate([-offset_x, -offset_y, 0]) cylinder(h=holder_z, r=corner_radius, center=true);
			}
			rotate([26, 0, 0]) translate([0, holder_y / 2, -holder_z/2]) cube([holder_x + 1, holder_y * 4/3, holder_z], center=true);
		}
	}
	translate([0, -holder_y/2+3, 0]) rotate([-30, 0, 0]) translate([0, card_y/2, 0]) cube([card_x, card_y, card_z*2], center=true);
	translate([0, (logo_y/2)-3, -0.01]) mirror([1,0,0]) rotate([0, 0, 180]) {
		scale([(logo_x)/scale_x, (logo_y)/scale_y, z_height_one]) surface(file=tone_one, center=true, convexity=5);
		scale([(logo_x)/scale_x, (logo_y)/scale_y, z_height_two]) surface(file=tone_two, center=true, convexity=5);
	}
}

```


[User]
I'd like to create a customizable business card holder with a two-color logo. The design is based on a rectangular box with rounded corners and a slot for business cards, with a raised logo on the front.

Here are the key features:

*   **Overall Structure:** The holder is essentially a rectangular box with rounded corners and a slightly angled back. It'll have a cut-out on the top, to allow access to the cards, and will have a slightly angled back.
*   **Rounded Corners:** I'd like the corners of the box to be rounded.
*   **Card Slot:** A slot needs to be included on the top of the holder to hold the business cards. It will be at an angle.
*   **Two-Color Logo:** The front face of the holder will feature a raised logo that will be printed in a different color than the base. I need the ability to control the height at which this layer begins, as this is where I'll need to change filament colors.
*   **Customization:** I need the design to be parametric, such that I can easily change the overall dimensions of the holder, the card slot dimensions, and the size and height of the logo.

Specifically, I'd like the following to be adjustable parameters:

*   `holder_x`: The overall length of the card holder.
*   `holder_y`: The overall width of the card holder.
*   `holder_z`: The overall height of the card holder.
*   `card_x`: The length of the card slot.
*   `card_y`: The width of the card slot.
*   `card_z`: The height of the card slot.
*   `corner_radius`: The radius of the rounded corners.
*   `face_z`: The Z height for the logo layer (where the filament change should happen).
*   `logo_file`: The file path for the image of the logo.
*   `logo_x`: The length of the logo.
*   `logo_y`: The height of the logo.
*   `logo_scale_x`: The X scale of the logo, where 150 would be "unscaled" from the supplied image.
*   `logo_scale_y`: The Y scale of the logo, where 40 would be "unscaled" from the supplied image.

For the image, it should work by loading a black and white image as a surface. Black should be the background and white the logo, and it's important that the image be stretched to fit.

I'm imagining a single .scad file that will output the entire design. I won't need any external libraries for this one, I think. Could you help me generate this file?

[Assistant]
bicolor_card_holder.scad:
```
// preview[view:south, tilt:bottom]

/* [Global] */

// Load a 150x40 pixel image. This is the artwork for the logo. The background should be black and the logo white. If not, make sure to click the Invert Colors checkbox.
logo = "logo.dat"; // [image_surface:150x40]

// What Z height would you like to pause the printer to change the filament for the logo color (mm)?
z_height = 0.6;

/* [Hidden] */

holder_x = 100;
holder_y = 50;
holder_z = 25;
card_x = 91;
card_y = 13;
card_z = 22;
corner_radius = 5;
box_x = holder_x - (corner_radius * 2);
box_y = holder_y - (corner_radius * 2);
face_z = z_height;
offset_x = (holder_x / 2) - corner_radius;
offset_y = (holder_y / 2) - corner_radius;
logo_x = 90;
logo_y = 24;
scale_x = 150;
scale_y = 40;

difference() {
	translate([0, 0, face_z]) {
		translate([0, 0, -(face_z/2)]) {
			cube([box_x, holder_y, face_z], center=true);
			cube([holder_x, box_y, face_z], center=true);
			translate([ offset_x,  offset_y, 0]) cylinder(h=face_z, r=corner_radius, center=true);
			translate([-offset_x,  offset_y, 0]) cylinder(h=face_z, r=corner_radius, center=true);
			translate([ offset_x, -offset_y, 0]) cylinder(h=face_z, r=corner_radius, center=true);
			translate([-offset_x, -offset_y, 0]) cylinder(h=face_z, r=corner_radius, center=true);
		}
		translate([0, -holder_y / 2, -0.01]) scale([1, 0.898, 1]) rotate([-26, 0, 0]) difference() {
			translate([0, holder_y / 2, holder_z/2]) {
				cube([box_x, holder_y, holder_z], center=true);
				cube([holder_x, box_y, holder_z], center=true);
				translate([ offset_x,  offset_y, 0]) cylinder(h=holder_z, r=corner_radius, center=true);
				translate([-offset_x,  offset_y, 0]) cylinder(h=holder_z, r=corner_radius, center=true);
				translate([ offset_x, -offset_y, 0]) cylinder(h=holder_z, r=corner_radius, center=true);
				translate([-offset_x, -offset_y, 0]) cylinder(h=holder_z, r=corner_radius, center=true);
			}
			rotate([26, 0, 0]) translate([0, holder_y / 2, -holder_z/2]) cube([holder_x + 1, holder_y * 4/3, holder_z], center=true);
		}
	}
	translate([0, -holder_y/2+3, 0]) rotate([-30, 0, 0]) translate([0, card_y/2, 0]) cube([card_x, card_y, card_z*2], center=true);
	translate([0, (logo_y/2)-3, -0.01]) mirror([1,0,0]) rotate([0, 0, 180]) {
		scale([(logo_x)/scale_x, (logo_y)/scale_y, z_height]) surface(file=logo, center=true, convexity=5);
	}
}

```


[User]
Hey, I need to design a door stop that fits into the bolt hole of a door. I've got some ideas, and I'd like to be able to customize the dimensions pretty easily.

Essentially, it's going to be a rectangular block with rounded corners that snugly fits into the door's bolt hole, and then it extends out with a tongue that prevents the door from closing. The tongue also needs to have a handle built into it to help pull the door stop out.

Here are the parameters I was thinking of:

*   `bolt_hole_height`: The height of the rectangular bolt hole
*   `bolt_hole_width`: The width of the rectangular bolt hole.
*   `bolt_hole_depth`: The depth of the rectangular bolt hole.
*   `bolt_hole_corner_radius`: The radius of the rounded corners on the bolt hole.

*   `tongue_length`: The length of the tongue extending out from the bolt hole.
*   `tongue_thickness`: The thickness of the tongue.

*   `handle_inset`: How far the handle should be inset from the edge of the tongue (determines handle width).
*   `handle_length`: The length of the handle.
*  `handle_hole`: A boolean for whether to include a hole for hanging on a string.

I'd like it so that the handle is a recessed portion of the tongue, and has some rounded corners. I think I'd also like to add an optional hole in the handle so I can attach a string or something to it for storage.

I think I'd like to use the `roundedCube4` and `roundedCube6` modules for this. I'm not sure how to do all of that with OpenSCAD so I'd appreciate it if you could help me generate the scad files. It would be super if it could all be done in a single .scad file.

[Assistant]
doorstop.scad:
```

// Door bolt hole height; must be a tight fit
bolt_hole_height = 26.75;
// Door bolt hole width; must be a tight fit
bolt_hole_width = 14.5;
// Door bolt hole depth
bolt_hole_depth = 21;

// Door bolt hole corner radius
bolt_hole_corner_radius = 2.75;

// Door stopper tongue length; must be long enough so gap between door and frame is sufficiently large
tongue_length = 34;
// Door stopper tongue thickness; must be thick enough so door is blocked and doesn't slide past tongue
tongue_thickness = 8;

// Pull handle inset (determines handle width = bolt hole width - 2 * inset)
handle_inset = 2.25;
// Pull handle length
handle_length = 15;
// Whether to include a hole (for a strap to hang from door when not inserted) or not
handle_hole = true;

/* [Hidden] */

// Door tongue inset dimensions
h = bolt_hole_height;
w = bolt_hole_width;
d = bolt_hole_depth;

rad = bolt_hole_corner_radius;

// Door parameters
l = tongue_length;
thk = tongue_thickness;

// Handle parameters
h_inset = handle_inset;
h_d = handle_length;
hole_r = 3/2;
hole = handle_hole;

h_w = w - 2*h_inset;  // must be <= w
h_or = 3;  // outer corner rounding radius
h_ir = 3;  // inner rounding radius
h_rim = 3; // finger notch rim

$fn=18;

// ****  FROM lib/util.scad
module roundedCube4(dim, r, center=false) {
  width = dim[0];
  height = dim[1];
  depth = dim[2];
  centerx = (center[0] == undef ? center : center[0]);
  centery = (center[1] == undef ? center : center[1]);
  centerz = (center[2] == undef ? center : center[2]);
  translate([centerx ? -width/2 : 0, centery ? -height/2 : 0, centerz ? -depth/2 : 0]) union() {
    translate([0, r, 0]) cube([width, height-2*r, depth]);
    translate([r, 0, 0]) cube([width-2*r, height, depth]);
    for (xy = [[r, r],
               [r, height-r],
               [width-r, r],
               [width-r, height-r]]) {
      translate([xy[0], xy[1], 0]) cylinder(r = r, h = depth);
    }
  }
}

// TODO FIXME: dim[2] is not obeyed and top is filleted when dim[2] is >r but <2*r, because corner sphere diameter exceeds height  (should be a half-sphere, in principle)
module roundedCube6(dim, r, center=false) {
  width = dim[0];
  height = dim[1];
  depth = dim[2];
  centerx = (center[0] == undef ? center : center[0]);
  centery = (center[1] == undef ? center : center[1]);
  centerz = (center[2] == undef ? center : center[2]);
  translate([r - (centerx ? width/2 : 0), r - (centery ? height/2 : 0), r - (centerz ? depth/2 : 0)]) hull() {
    // Edges
    translate([0, 0, 0]) rotate([-90, 0, 0]) cylinder(h = height-2*r,r = r);
    translate([width-2*r, 0, 0]) rotate([-90, 0, 0]) cylinder(h = height-2*r,r = r);
    translate([0, 0, 0]) rotate([0, 90, 0]) cylinder(h = width-2*r, r = r);
    translate([0, height-2*r, 0]) rotate([0, 90, 0]) cylinder(h = width-2*r, r = r);
    translate([0, 0, 0]) cylinder(h = depth-r, r = r);
    translate([width-2*r, 0, 0]) cylinder(h = depth-r, r = r);
    translate([0, height-2*r, 0]) cylinder(h = depth-r, r = r);
    translate([width-2*r, height-2*r, 0]) cylinder(h = depth-r, r = r);

    // Corners
    translate([0,0,0]) sphere(r);
    translate([width-2*r, 0, 0]) sphere(r);
    translate([0, height-2*r, 0]) sphere(r);
    translate([width-2*r, height-2*r, 0]) sphere(r);
  }
}

//  *****  END FROM lib/util.scad

rotate([0, -90, 0]) union() {
  roundedCube4([h, w, d+thk], r=rad);
  roundedCube4([h, w+l, thk], r=rad);
  translate([0, (w-h_w)/2, -h_d]) difference() {
    roundedCube6([h, h_w, h_d+thk], r=h_or);
    translate([h_rim, h_rim, h_rim]) rotate([90, 0, 0]) roundedCube6([h-2*h_rim, h_d-h_rim, 2*h_rim], r=h_ir);
    translate([h_rim, h_w-h_rim, h_d]) rotate([-90, 0, 0]) roundedCube6([h-2*h_rim, h_d-h_rim, 2*h_rim], r=h_ir);
    if (hole) {
      translate([h-h_rim-h_ir, -1, h_rim+h_ir]) rotate([-90, 0, 0]) cylinder(r=hole_r, h=h_w+2);
    }
  }
}

```


[User]
I'm looking for an OpenSCAD design for a tractrix horn, and I'd like it to be parametric so I can easily adjust the dimensions. I've got some background info that might be useful.

Basically, a tractrix horn isn't the same as a spherical wave horn. There's a good explanation of the theory here, if you're not familiar: https://www.grc.com/acoustics/an-introduction-to-horn-theory.pdf. I'm also happy to provide other links for background information if that would be useful. The main idea is that the horn acts as an impedance matching transformer, converting high pressure/low speed sound waves to low pressure/high speed waves, or vice versa.

The designs I'm thinking about would be printable on a regular 3D printer, so I know they'll only be suitable for relatively high frequencies (even for whistles), but they have interesting amplification properties.

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

*   **Cutoff Frequency (fc):** This sets the lower limit of the horn's useful frequency range, in Hz.
*   **Speed of Sound (c_sound):** Usually around 340 m/s, but it should be adjustable in case I want to explore different mediums.
*  **Inlet Radius (r0):** The inner radius of the narrow end of the horn (where the sound enters).
*   **Resolution (n):** The number of segments used to generate the horn's curve.
*   **Crop Factor:** This will shorten the horn. A value of 1 will use the full length, while a value less than one will result in a shorter horn.
*   **Wall Thickness (twall):** The thickness of the horn's walls.
*   **Inlet Pipe Thickness (tinlet):** The thickness of the walls on the inlet pipe. Should be greater than or equal to twall.
*   **Inlet Pipe Length (hinlet):** The length of the straight pipe section at the narrow end of the horn.
*  **Flip:** Boolean. Flip the entire design upside down for better print-bed adhesion.
*   **Resolution $fa and $fs:** As usual, these will control the mesh fineness. $fa will set the minimum angle between facets and $fs will set the minimum length of an edge.

I'd like the design to include:

*   A function to calculate a point on the tractrix curve based on a given radius. I believe the formula will need these helpers:

    ```
    function helper(rm,r) = sqrt(pow(rm,2)-pow(r,2));
    function axial(rm,r) = rm*ln((rm+helper(rm,r))/r)-helper(rm,r);
    ```
    where `rm` is the mouth radius of the horn and `r` is the local radius.
*   The design should generate the basic tractrix horn shape using a series of cylinders with increasing radius, the length of each cylinder section being determined by the tractrix equation. It should include the crop factor when creating the basic tractrix shape.
* An outer surface for the horn with the given wall thickness (`twall`).
*   An inlet pipe at the narrow end of the horn with adjustable `tinlet` and `hinlet`.
*   Boolean subtraction to create the hollow inner part of the horn.
*  Make sure to adjust the outer shell upwards before performing the subtraction so that the wall thickness is accurate.
*   The design should also calculate and print the complete horn length and the tractrix segment length.

I think that's everything. Let me know if anything is unclear or you need more information. I'm thinking one scad file would be fine for all of this. Thanks!

[Assistant]
tractrix-horn.scad:
```

/*
Author: Lukas Süss aka mechadense
Title: Tractrix Horn Generator
License: CC-BY

Description:

This is a generator for horns with tractrix crossection.
Those are not the same as spherical wave horns! see here:
https://www.grc.com/acoustics/an-introduction-to-horn-theory.pdf

Horns act as acoustic impedance matching transformators
transformating high pressure low speed to low pressure high speed sound waves ore vice versa.

Note that the sizes that are printable on common personal 3D printers  are only suitable for rather high frequencies (even for whistles).

Example horn:
cutoff frequency: 4500Hz
inlet inner diameter: 20mm
inlet outer diameter: 24mm
inlet pipe length: 5mm
horn length cropped to: 80%
cropped horn mouth diameter: 126.5mm
complete horn length: 129.9mm
tractrix segment length: 124.9mm

--------------

maybe todo:
  add spherical wave horn alternative
  add exponential horn alternative
  look at alternative generation method (e.g. rotate extrude)
  refactor file for usage as library
*/

// set false for better phintbed-adhesion but worse inner surface
flip = true;

// resolution minimal angle per edge
$fa = 5;
// resolution: minimal length per edge
$fs = 0.2;

// lower cutoff frequency in Hz
fc = 4500;
// speed of sound
c_sound = 340;

//lower cutoff wavelength
lambda_c = c_sound/fc;
// horn mouth radius
rm = lambda_c*1000;
//echo("Horn mouth diameter is: ",2*rm);

// inlet radius
r0 = 10;
// resolution: number of resolution steps
n = 32;

// radial stepsize
dr = (rm-r0)/n;

// tactric generation functions
function helper(rm,r) = sqrt(pow(rm,2)-pow(r,2));
function axial(rm,r) = rm*ln((rm+helper(rm,r))/r)-helper(rm,r);
//echo("z0:",axial(rm,rm)); // check for 0

// keep as close to 1 as possible (cripples horn)
crop_factor = 0.80;
nstart = round(n*(1-crop_factor));
//echo("nastart:",nstart);

echo("cropped horn: mouth diameter is: ",2*(rm-dr*nstart));
// size estimation cube
//cube([10,10,10],center=true);

// approximate wall thickness
twall = 1.5;

// inlet pipe thickness (>twall)
tinlet = 2;
// length of inlet pipe
hinlet = 5;

//renerding help (lim->0)
eps = 0.05;

htractrix = axial(rm,rm-dr*(n+0))-axial(rm,rm-dr*nstart);

if(flip)
{
  translate([0,0,htractrix+hinlet]) scale([1,1,-1])
  tractrixhorn();
} else
{
  tractrixhorn();
}

module tractrixhorn()
{
  difference()
  {
    union()
    {
      translate([0,0,0])
      {
        // mouth endcap
        cylinder(r=(rm-dr*nstart)+twall,h=twall);
        // inlet tube
        color("red")
          cylinder(r=r0+tinlet,h=htractrix+hinlet);
      }
      translate([0,0,-axial(rm,rm-dr*nstart)])
      difference()
      {
        // outer tractrix shell is shifted upwards (and outwards)
        translate([0,0,twall]) tractrixhorn_shape(twall); // <<<<<<<<<

        // cutoff excess length
        // note that due to the outer shell up-shift
        // the end radius is a bit bigger than r0+twall
        translate([0,0,(twall+hinlet+2)/2+axial(rm,rm-dr*(n))-eps])
        cube([(r0+twall)*2+2,(r0+twall)*2+2,twall+hinlet+2],center=true);
        //cube([(r0)*2,(r0)*2,twall*2],center=true);
      }
    }
    translate([0,0,-axial(rm,rm-dr*nstart)])
    translate([0,0,-0.05]) tractrixhorn_shape(); // <<<<<<<<<<<<

    translate([16*0,0,htractrix-1]) cylinder(r=r0,h=hinlet+2);

  }
  echo("complete horn length is: ",htractrix+hinlet);
  echo("tractrix segment length is: ",htractrix);

}

module tractrixhorn_shape(r_add=0)
{
  for(i=[nstart:n-1])
  {
    //echo(axial(rm,rm-dr*i));
    translate([0,0,axial(rm,rm-dr*i)])
    cylinder(r1=rm-dr*i+r_add,r2=rm-dr*(i+1)+r_add,h=axial(rm,rm-dr*(i+1))-axial(rm,rm-dr*i)+eps);
  }
}

```


[User]
Hey, I'm trying to create a script that generates star polygons, like the ones you see on the Wikipedia page for "star polygon". I've got some code, but it only does the basic shapes where the 'density' is 1.  I want to be able to generate different kinds of star polygons, specifically those where the number of "points" and the "density" (also known as the "step" or "skip") are variable.

Basically, I need a way to generate any star polygon using the Schläfli symbol {p/q}. 'p' is the number of points (vertices) and 'q' is the density, which is the number of vertices skipped in the generating sequence.  So a regular pentagon would have parameters p=5 and q=1, a pentagram would have p=5, and q=2. The heptagram with density 2 would be p=7, q=2 and the heptagram with density 3 would be p=7, q=3, and so on.

I'd also like to control the length of the "arms" of the star, the thickness of the "arms," and the height of the shape. It would be useful to have a preview that is angled so I can clearly see the height.

I am looking for the code to be in OpenSCAD and use MCAD. I don't have any of the libraries set up yet, so you don't have to worry about it. I just need the OpenSCAD file.

[Assistant]
star_polygon.scad:
```
//Customizable Star Polygon
//Created by Ari M. Diacou, January 2014
//Shared under Creative Commons License: Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0)
//see http://creativecommons.org/licenses/by-sa/3.0/

// preview[view:south, tilt:top diagonal]
//The length of one of the sides of the star
length=10;
//The thickness of one of the sides of the star
thickness=.2;
//The height of one of the sides of the star
height=1;
//Vertices (number of points)
p=7;//[5,7,9,11,13,15,17,19]
//Density
//q=5;

/* HIDDEN */
angle=abs(180/p); echo("angle = ",angle);//internal angle of the points
circle_radius=length/(2*sin(2*angle));echo("circle_radius = ",circle_radius);//circle that the polygon is inscribed in
sagitta=circle_radius-sqrt(circle_radius*circle_radius-.25*length*length);echo("sagitta = ",sagitta); //distance from a vertex to the side of the polygon at the vertex's base
side_length=2*sagitta*sin(angle/2)/cos(angle/2); echo("side_length = ",side_length);//the length of the side of the internal polygon
apothem=.5*side_length*cos(180/p)/sin(180/p); echo("apothem = ",apothem); //distance from the origin to one of the sides in the internal regular polygon

module side(){
	mirror([0,1,0]){
		difference(){
			cube([length,thickness,height]);
			rotate([0,0,angle])
				cube([thickness/sin(angle),thickness,height]);
			translate([length,0,0])
				mirror([1,0,0]){
					rotate([0,0,angle])
						cube([thickness/sin(angle),thickness,height]);
					}
			}
		}
	}

for(i=[1:p]){
	   rotate([0,0,i*2*angle])
			translate([-length/2,apothem,0])
				side();
		}

```


[User]
I want to create a customizable minion model using OpenSCAD. I need a design that allows for a lot of control over the minion's appearance, including its size, shape, legs, goggles/eyes, mouth, hair, arms, and the props it's holding.

Here's a breakdown of what I need:

**Overall Structure:**

*   The design should have a main body, legs, arms, and the ability to add props to the hands.
*   I'd like to be able to select between showing the full minion as a single piece, just the front, just the back, just the legs and base, a plated version of the minion, or a cross section. This should be controlled by a variable `part` with the following possible values:
    *   `0`: One Piece Minion
    *   `1`: Front Piece
    *   `2`: Back Piece
    *   `3`: Base and Legs Piece
    *   `6`: Plated
    *   `7`: Plated cross-section
*   The design will use the `MCAD/regular_shapes.scad` and `write/Write.scad` libraries.

**Size and Shape:**

*   **`minionName`**: A string variable for the minion's name, used for writing on the base.
*   **`bodyLen`**:  Adjustable height of the minion's body (range 10-40).
*   **`radius`**:  Radius of the minion's head, which affects the body width (range 25-75).

**Legs:**

*   **`legLF`**:  Left leg forward/back angle (values like 45, 0, -45).
*   **`legLL`**:  Left leg lean angle (range -5 to 5).
*   **`legRF`**:  Right leg forward/back angle (values like 45, 0, -45).
*   **`legRL`**:  Right leg lean angle (range -5 to 5).

**Goggles/Eyes:**

*   **`numEyes`**: Number of eyes (1, 2, or 3).
*  **`openTop`**: Degrees of openness for the top eyelid (0-90).
*   **`openBottom`**: Degrees of openness for the bottom eyelid (0-90).
*   **`goggleSpacing`**: Spacing between goggles (range 1.0-1.9).
*   **`goggleDown`**: How far down the goggles are positioned (range 0-20).
*   **`goggleRim`**: Thickness of the goggle rim (range 1-10).
*   **`goggleBigger`**:  How much bigger the goggles are than the eyes (range 0-10).
*   **`goggleBandThickness`**: Thickness of the goggle band.
*   **`goggleBandHeight`**: Height of the goggle band (range 1-10).
*   **`lookLR`**:  Horizontal look angle of the eyes (range -45 to 45).
*   **`lookUD`**:  Vertical look angle of the eyes (range -32 to 32).
*   **`goggleLen`**: Depth of the goggles (range 1-20).

**Mouth:**

*   **`mouthOpen`**: How open the mouth is (range 0-10).
*   **`expression`**: A variable that controls the mouth shape, allowing to select from:
    *   `0`: Smile
    *   `1`: Scream
    *   `2`: Sad
*   **`mouthHorizontalScaleF`**: Controls the horizontal scale of the mouth (range 3-11, divided by 10 to get the actual scale).
*   **`mouthVerticalScaleF`**: Controls the vertical scale of the mouth (range 3-11, divided by 10 to get the actual scale).

**Hair:**

*   **`hair_type`**: Select between different hair styles:
    *   `0`: None
    *   `1`: Tufts
    *   `2`: Star
    *   `3`: Mohawk
*   **`hairLength`**: Length of the hair (range 1-10).
*   **`hairRad`**: Hair thickness (range 2-4).
*   **`hairSpacingX`**: Hair spacing on the X axis (range 15-30).
*   **`hairSpacingY`**: Hair spacing on the Y axis (range 15-30).

**Arms:**

*   **`armAngleL`**: Angle of the left arm (range 10-170).
*   **`armAngleL2`**: Bend of the left elbow (range -90 to 0).
*  **`armUp`**: Angle for the up/down movement of the left arm (0 for up, 180 for down).
*   **`armAngleR`**:  Angle of the right arm (range 10-170).
*   **`armAngleR2`**:  Bend of the right elbow (range -90 to 0).
*   **`armUp2`**: Angle for the up/down movement of the right arm (0 for up, 180 for down).

**Hand Props:**

*   **`LProp`**: Type of prop in the left hand:
    *   `0`: None
    *   `1`: Rocket
    *   `2`: Bomb
*   **`LPropScale`**: Scaling of the left hand prop (range 1-4).
*   **`LPropRotX`**: Rotation of the left prop on the X axis (range 0-45).
*   **`LPropRotY`**: Rotation of the left prop on the Y axis (range 0-45).
*  **`RProp`**: Type of prop in the right hand:
    *   `0`: None
    *   `1`: Rocket
    *   `2`: Bomb
*   **`RPropScale`**: Scaling of the right hand prop (range 1-4).
*   **`RPropRotX`**: Rotation of the right prop on the X axis (range 0-45).
*   **`RPropRotY`**: Rotation of the right prop on the Y axis (range 0-45).

**Thicknesses:**

*   **`cloth`**: Thickness of the clothing.
*   **`baseHeight`**: Height of the base.
*   **`clearance`**: Clearance between plugs and sockets for assembling parts.

**Hidden:**

*   **`tongue`**: A variable which is always 0

I think that covers everything. I'm looking forward to seeing the code.

[Assistant]
Manual_Minion.scad:
```
// minion

use <MCAD/regular_shapes.scad>;
use <write/Write.scad>;

// preview[view:south, tilt:side]

/* [Size and Shape] */
//Minion Name
minionName = "Your Name Here";
// Part to show
part = 0; //[0:One Piece Minion, 1:Front Piece, 2:Back Piece, 3:Base and Legs Piece, 6: Plated]
// Height of minion
bodyLen = 10; // [10:40]
// Radius of head (which controls body width, etc.)
radius = 25; // [25:75]

/* [Legs] */

// Left leg forward/back
legLF = 0; // [45:Forward, 0:Straight, -45:Back]
// Left leg lean
legLL = 0; // [-5:5]
// Right leg forward/back
legRF = 0; // [45:Forward, 0:Straight, -45:Back]
// Right leg lean
legRL = 0; // [-5:5]

/* [Goggles/Eyes] */

// How many eyes?
numEyes = 2; //[1:3]
// Open Top eyelid (degrees). 90 is wide open, 0 is shut.
openTop = 60; //[0:90]
// Open Bottom eyelid (degrees). 90 is wide open, 0 is shut.
openBottom = 90; //[0:90]
// Goggle spacing
goggleSpacing = 1.5; //[1.0:1.9]
// How low do the googles go?
goggleDown = 5; // [0:20]
// How thick is the rim of the goggles?
goggleRim = 5; // [1:10]
// How much bigger are goggles than eyes?
goggleBigger = 1; // [0:10]
// How thick is the goggle band?
goggleBandThickness = 2;
// How tall is the goggle band?
goggleBandHeight = 5; //[1:10]
// Look left/right
lookLR = 0; //[-45:45]
// Look up/down
lookUD = 0; //[-32:32]
// How deep are the goggles?
goggleLen = 1; //[1:20]

/* [Mouth] */

// Mouth open
mouthOpen = 5; //[0:10]
//What expression is the Minion making?
expression = 0; // [0:Smile, 1:Scream, 2:Sad]
//How wide is the mouth?
mouthHorizontalScaleF = 5; //[3:11
mouthHorizontalScale = mouthHorizontalScaleF/10;
//How tall is the mouth?
mouthVerticalScaleF = 5; //[3:11
mouthVerticalScale = mouthVerticalScaleF / 10;

/* [Hair] */

// Hair cut
hair_type = 0; //[0:None, 1:Tufts, 2:Star, 3:Mohawk]
// hair length
hairLength = 3; //[1:10]
// Hair thickness
hairRad = 2; //[2:4]
// Hair spacing X
hairSpacingX = 20; //[15:30]
// Hair spacing Y
hairSpacingY = 20; //[15:30]

/* [Arms] */
// Left arm angle
armAngleL = 170; // [10:170]
// Left elbow bend
armAngleL2 = -30; //[-90:0]
// Left arm up or down
armUp = 0; //[0:Up, 180:Down]
// Right arm angle
armAngleR = 90; // [10:170]
// Right elbow bend
armAngleR2 = -45; //[-90:0]
// Right arm up or down
armUp2 = 0; //[0:Up, 180:Down]

/* [Left Hand] */

// Left hand prop
LProp = 1; // [0:None, 1:Rocket, 2:Bomb]
// Scale left prop
LPropScale = 1; //[1:4]
// Rotate X
LPropRotX = 22; //[0:45]
// Rotate Y
LPropRotY = 22; //[0:45]

/* [Right Hand] */

// Right hand prop
RProp = 2; // [0:None, 1:Rocket, 2:Bomb]
// Scale right prop
RPropScale = 1; //[1:4]
// Rotate X
RPropRotX = 22; //[0:45]
// Rotate Y
RPropRotY = 22; //[0:45]

/* [Thicknesses] */
// Clothing thickness
cloth = 2;
// Base height
baseHeight = 10;
// Clearance between plugs and sockets
clearance = 1;

/* [Hidden] */

tongue = 0; // no tongue, too complex to explain to people

// Width of minion
radiusB = radius*1.1; // big butt

width=2*radius;
echo("width ",width);
echo("radius ",radius);

// Length of minion's legs
legLen = 5+bodyLen/5;
//echo("legLen",legLen);

realLeg = legLen+radiusB/2+4;

bodyHeight = bodyLen + 2*radius + legLen + baseHeight;
echo("bodyHeight",bodyHeight);

// Eyes

//echo("goggleRim",goggleRim);
// Spacing between eyes (if more than one)
eyeSpacing = (radius/numEyes)*goggleSpacing + goggleRim;
//echo("eyeSpacing",eyeSpacing);
// Eye radius
eyeSize = eyeSpacing/2-goggleBigger-goggleRim;
//echo("eyeSize",eyeSize);
// How big is the pupil?
pupil = eyeSize/2;
//echo("goggleBandHeight",goggleBandHeight);

//echo(str("OpenTop ",openTop," OpenBottom ",openBottom));

//echo(str("LookUD ",lookUD," LookLR ",lookLR));

// Mouth

// Arms

//echo("armAngles",armAngleL, armAngleR, armAngleL2, armAngleR2);
armRadius=radius/6;
//echo("arm radius ",armRadius);
beltHeight = 2*armRadius;
//echo("belt height ", beltHeight);
armLen = radius * 0.7;
armRad = radius/6;
forearmLen = armLen * 0.9;
forearmRad = armRad * 0.9;

$fn=32;

lowerCenterZ = legLen+radius;
//echo("lowerCenterZ",lowerCenterZ);
goggleSize = eyeSpacing/2;
//echo("goggleSize",goggleSize);
offset = (numEyes/2 - 0.5)*eyeSpacing;
//echo("offset",offset);
height=bodyHeight+radius*2+legLen;
//echo("height",height);
upperCenterZ = height-radius;
//echo("upperCenterZ",upperCenterZ);
gogglePos = upperCenterZ-goggleDown-lowerCenterZ;
//echo("gogglePos",gogglePos);
torso = bodyHeight*.3;
//echo("torso",torso);

//bodyLen=upperCenterZ-lowerCenterZ;
//echo("bodyLen",bodyLen);
// Belt position
beltHeight = bodyLen/3;
//echo("beltHeight",beltHeight);
// Arm position
armHeight = bodyLen*.25;
//echo("arm height ",armHeight);
// Mouth position
mouthHeight = torso+(gogglePos-eyeSize)/3;
//echo("mouthHeight",mouthHeight);

// hair

hairLen = radius*hairLength/25;

//hairLen = radius*rands(1,2,1,seed[22])[0]/5;

//echo("hairLen",hairLen);

// Hand Propos arrays, [0] is left hand, [1] is right hand

propNum = [LProp, RProp];
propScale = [LPropScale, RPropScale];
propRotX = [LPropRotX, RPropRotX];
propRotY = [LPropRotY,RPropRotY];

numProps = 2; // Increase as you add props
/*
//propNum = rands(-numProps,numProps+1,2,seed[26]); // what prop to draw in each hand
propScale = rands(1,4,2,seed[27]); // Scale by this to keep things interesting
propRotX = rands(0,45,2,seed[28]); // rotate X/Y to flop about wildly
propRotY = rands(0,45,2,seed[29]);
*/
propSubX = 45/2; // subtract from angle, so it's +/- 45 degrees in range
propSubY = 45/2;

echo("prop 0 ", propNum[0], propRotX[0], propRotY[0], propScale[0]);
echo("prop 1 ", propNum[1], propRotX[1], propRotY[1], propScale[1]);

// modules

module hemisphere(r) {
	difference() {
		sphere(r);
		translate([0,0,-r]) cylinder(r=r,h=r);
		}
	}

module finger(l,r) {
	linear_extrude(height = l, center = false, convexity = 10, twist = -180, $fn=8)
		translate([r/2, 0, 0]) circle(r = r, $fn=8);
	//cylinder(r=r,h=l);
	translate([-r/2,0,l]) sphere(r);
	}

//finger(10,2);

module hand(right) {
	color("black") {
		scale([1,1.5,1.5]) {
			sphere(radius/6);
			translate([0,0,-radius/6]) cylinder(r=radius/6+1,h=radius/6);
			}
		rotate([-30,0,0]) finger(radius/2,radius/8);
		finger(radius/2,radius/8);
		rotate([45,0,0]) finger(radius/2,radius/8);
		}
	translate([0,0,1.5*radius/6]) handProp(right);
	}

module foreArm(angle, right) {
	color("yellow") sphere(armRad);
	rotate([angle,0,0]) {
		color("yellow") cylinder(r=forearmRad, h=forearmLen);
		translate([0,0,forearmLen]) hand(right);
		}
	}

module arm(angle,angle2,right) {
	// shoulder
	color("yellow") sphere(armRad);
	// join into body
	color("yellow") rotate([90,0,0]) cylinder(r1=armRad, r2=radius/3, h=radius/4);
	// and draw arm
	rotate([angle,0,0]) {
		color("yellow") cylinder(r=armRad, h=armLen);
		translate([0,0,armLen]) foreArm(angle2, right);
		}
	}

module arms(angle) {
	// join arms into body
	rotate([90,0,0]) cylinder(r=radius/6,h-2*radius,center=true);
	translate([0,radius+armRadius,0]) {
		rotate([0,armUp,0]) mirror([1,0,0]) mirror([0,0,0]) arm(-armAngleL,-armAngleL2,0);
		}
	translate([0,-radius-armRadius,0]) {
		rotate([0,armUp2,0]) mirror([1,0,0]) mirror([0,1,0]) arm(-armAngleR,-armAngleR2,1);
		}
	}

// Clothes, drawn relative to lowerCenterZ.
module clothes() {
	// shoulder straps
	translate([0,0,torso*.7]) {
		difference() {
			union() { // straps
				rotate([30,0,0]) scale([1,1.2,1]) cylinder(r=radiusB+cloth,h=7);
				rotate([-30,0,0]) scale([1,1.2,1]) cylinder(r=radiusB+cloth,h=7);
				}
			rotate([180,0,0]) translate([0,0,-armHeight-armRadius]) cylinder(r=radiusB*1.5,h=torso+radiusB/2);
			}
		}
	scale([1,1,-.5]) hemisphere(radiusB+cloth);
	difference() {
		cylinder(r=radiusB+cloth,h=torso+2*armRadius);
		translate([0,0,armHeight+torso]) cube([8*armRadius,2*(radiusB+cloth),8*armRadius],center=true);
		}
	// ADD
	// pocket
	// logo
	}

module body() {
	difference() {
		union() {
			//echo(str("HEAD bodyLen ",bodyLen," radius ",radius));
			translate([0,0,upperCenterZ-lowerCenterZ]) {
				color("yellow") hemisphere(radius);
				color("black") rotate([0,0,-lookLR]) hair(hair_type);
				}
			color("yellow") cylinder(r1=radiusB,r2=radius,h=bodyHeight);
			color("yellow") scale([1,1,.5]) sphere(radius);
			}
		translate([0,0,mouthHeight]) rotate([0,0,-lookLR/2])
			scale([1,mouthVerticalScale,mouthHorizontalScale]) mouth(expression);
		}
	translate([0,0,mouthHeight]) rotate([0,0,-lookLR/2]) teeth();

	translate([0,0,gogglePos]) goggles();

	color("black") cylinder(r=radius*.8,h=upperCenterZ-lowerCenterZ);
	translate([0,0,torso+armRadius]) arms();
	color("blue") clothes();
	}

module eye(part=0) {
	// goggle cylinder
	if ((part==1)||(part==0)) {
		color("grey") cylinder(h=max(radius+2,radius+goggleLen+eyeSize/4), r=goggleSize+goggleRim/2, center = false);
		}
	// hole through cylinder
	if ((part==2)||(part==0)) cylinder(h=max(radius+2,radius+goggleLen+eyeSize/2+1), r=goggleSize-goggleRim/2, center = false);
	// eyeball, etc., in goggle
	if ((part==3)||(part==0)) {
		color("yellow") cylinder(r=goggleSize+.01,h=radius);
		translate([0,0,radius]) {
			scale([1,1,0.5]) {
				color("yellow") rotate([0,-openTop,0]) rotate([0,-90,0]) hemisphere(eyeSize+2);
				color("yellow") rotate([0,-openBottom,180]) rotate([0,-90,0]) hemisphere(eyeSize+2);
				}
			scale([1,1,0.5]) difference() {
				color("white") sphere(eyeSize);
				color("black") rotate([lookLR,lookUD,0]) translate([0,0,eyeSize]) cylinder(r=pupil,h=eyeSize,center=true);
				}
			}
		}
	}

module goggles() {
	//echo("offset",offset);
		rotate([0,0,-lookLR]) {
		color("grey") difference() {
			union() { // band and goggles
				cylinder(r=radius+goggleBandThickness, h=goggleBandHeight, center=true);
				for (eye=[0:numEyes-1]) {
					translate([0,-offset+eye*eyeSpacing,0]) rotate([0,90,0]) eye(1);
					}
				}
			for (eye=[0:numEyes-1]) { // minus holes in goggles
				translate([0,-offset+eye*eyeSpacing,0]) rotate([0,90,0]) eye(2);
				}
			}
		for (eye=[0:numEyes-1]) { // plus eyeballs
			translate([0,-offset+eye*eyeSpacing,0]) rotate([0,90,0]) eye(3);
			}

		//	translate([0,eyeSpacing,0]) rotate([0,90,0]) eye();
		//	mirror([0,1,0]) translate([0,eyeSpacing,0]) rotate([0,90,0]) eye();
		}
	}

module smile() {
	translate([0,0,radius*.4]) rotate([0,0,-lookLR/2]) rotate([0,-90,180]) difference() {
		cylinder(r=radius*.5,h=2*radius);
		translate([radius/2,0,-1]) cylinder(r=radius*.7, h=2*radius+2);
		}
	}

// subtract mouth from body
module mouth(expression) {
	//echo("LookLR ", lookLR);
	if (expression==0) {
		//echo("happy!", radius);
		smile();
		}
	if (expression==1) {
		//echo("scared!", radius/2, radius);
		rotate([0,90,0]) scale([.5,1,1]) cylinder(r=radius/2,h=2*radius);
		}
	if (expression==2) {
		translate([0,0,bodyHeight/10]) scale([1,1,-1]) smile();
		}
	}

// add teeth to body
module teeth() {
	color("white") difference() {
		union() {	// teeth are rings within the head
			translate([0,0,mouthOpen]) cylinder(r=(radiusB+radius)/2-4,h=30);
			rotate([180,0,0]) translate([0,0,mouthOpen]) cylinder(r=(radiusB+radius)/2-4,h=30);
			}
		for (a=[0:10:179]) { // minus grooves between teeth
			rotate([0,0,a]) cube([2*radiusB,0.5,60], center=true);
			}
		}
	// if ((mouthOpen>7)&&(rand>0)&&(expression!=2)) {
	// 	//echo("TONGUE!!!!");
	// 	color("red") rotate([0,0,-lookLR/2]) scale([1,mouthHorizontalScale,0.25*mouthVerticalScale]) rotate([0,90,0])
	// 		finger(radius+tongue, radius/4);
	// 	}
	}

module stubby() {
	//echo(str("stubby hair radius ",hairRad));
	for (x=[hairSpacingX/2:hairSpacingX:45]) {
		for (y=[-45:hairSpacingY:45]) {
			//assign (d=sqrt(x*x+y*y) {
				rotate([x,y-20,0])
					translate([0,0,radius-5]) finger(hairLen-hairLen*sqrt(x*x+y*y)/45,hairRad);
				//}
			}
		}
	}

module tworows() {
	//echo(str("stubby hair radius ",hairRad));
	for (y=[-45:hairSpacingY/2:45]) {
		rotate([hairSpacingX,y-20,0])
			translate([0,0,radius-5]) finger(hairLen*2-hairLen*2*sqrt(hairSpacingX*hairSpacingX+y*y)/45,hairRad);
		}
	}

module mohawk() {
	//echo(str("mohawk hair radius ",hairRad));
	for (y=[-45:hairSpacingY/8:45]) {
		rotate([0,y-20,0])
			translate([0,0,radius-5]) rotate([0,0,y]) finger(hairLen*4-hairLen*2*sqrt(hairSpacingX*hairSpacingX+y*y)/45,hairRad);
		}
	}

module starfish() {
	hr=5*hairRad;
	//echo(str("stubby hair radius ",hr));
	for (y=[-25:hairSpacingY:45]) {
		rotate([hairSpacingX,y,0])
			translate([0,0,radius-hr+hairRad]) rotate([0,90,0]) rotate([0,0,-90])
				hemicylinder(r=hr,h=hairRad);
		}
	}

module hemicylinder(r,h) {
	difference() {
		cylinder(r=r,h=h);
		translate([-r,0,-1]) cube([2*r,r,h+2]);
		}
	}

//hemicylinder(10,1);

// hair, relative to top of head
module hair(hair_type) {
	// ADD HAIR HERE
	if (hair_type==1) {
		stubby();
		mirror([0,1,0]) stubby();
		}
	if (hair_type==2) {
		tworows();
		mirror([0,1,0]) tworows();
		}
	if (hair_type==3) mohawk();
	if (hair_type==4) {
		starfish();
		mirror([0,1,0]) starfish();
		}
	}

// leg
module leg(forward) {
	//echo("realLeg",realLeg);
	cylinder(r1=radius/4,r2=radius/3, h=realLeg);
	scale([3,1,1]) translate([radius*.17,0,0])
		cylinder(r1=radius/4,r2=radius/8,h=realLeg/4);
	if (forward>40) {
		translate([0,0,realLeg/4]) rotate([180,forward,0])
			cylinder(r=radius/6, h=realLeg*sin(forward));
		}
	if (forward<-40) {
		translate([realLeg,0,-realLeg*sin(forward)/2]) rotate([180,forward,0])
			translate([-realLeg/3,0,-.2*realLeg]) scale([2,1.5,1]) cylinder(r2=radius/4,r1=radius/8, h=baseHeight);
		}
	}

module legPosition(forward, left, pins) {
	translate([0,0,lowerCenterZ]) rotate([left,-forward,0]) translate([0,0,-lowerCenterZ]) {
		leg(forward);
		if (pins==1) {
			//echo("PINS");
			translate([0,0,realLeg]) {
				rotate([0,forward,0]) translate([0,0,-radius/6]) cylinder(r=radius/6, h=radius/2);
				//sphere(r=radius/6);
				}
			}
		if (pins==2) {
			//echo("HOLES");
			translate([0,0,realLeg]) {
				rotate([0,forward,0]) translate([0,0,-radius/6]) cylinder(r=radius/6, h=radius/2);
				//sphere(r=radius/6+clearance);
				}
			}
		}
	}

// legs
// pins 0 means draw legs
// pins=1 means to draw just the pins

module legs(pins) {
	color("black") {
		translate([0,radius/2,0]) rotate([0,0,15]) legPosition(legLF,legLL, pins);
		translate([0,-radius/2,0]) rotate([0,0,-15]) legPosition(legRF, legRL, pins);
		}
	}

module plateLegs() {
	difference() {
		union() {
			base();
			color("grey") legs(1); // pins
			difference() {
				legs(0); // legs
				translate([0,0, lowerCenterZ]) rotate([0,lookUD,0]) {
					body();
					}
				}
			}
		translate([-50,-50,-baseHeight-40]) cube([100,100,40]);
		}
	}

pinLen = 5;

module legHoles() {
	translate([legLen*sin(legLF),radius/2,legLen+radiusB/2])
		cylinder(r=radius/6+clearance,h=pinLen*2+2*clearance,center=true);
	translate([legLen*sin(legRF),-radius/2,legLen+radiusB/2])
		cylinder(r=radius/6+clearance,h=pinLen*2+2*clearance,center=true);
}

module base() {
	color("yellow") translate([0,0,-baseHeight]) cylinder(r1=2*radius+baseHeight,r2=2*radius,h=baseHeight);
	color("black") translate([.75*width,0,-baseHeight]) scale([2,2,2.5*baseHeight+2]) rotate([0,0,90]) write(minionName,center=true);
	//color("black") translate([-.5*width,0,0]) rotate([0,0,-90]) scale([4,4,2]) write(str(MinionNumber),center=true);
	}

/////////////////////////////////////////////////////////////////////
/////////////////////////////// PROPS ///////////////////////////////
/////////////////////////////////////////////////////////////////////

module handProp(right=1) {
	pn = floor(propNum[right]);

	echo("hand prop", pn, right, propRotX[right], propRotY[right]);

	// add new props here. Important: after adding new props, increase the range of the
	// randomly generated propNum (above) to include the new prop.
	rotate([propRotX[right]-propSubX,propRotY[right]-propSubY,-90]) {
		if (pn==1) scale(propScale[right]) handRocket();
		if (pn==2) scale(propScale[right]) handBomb();
		}
	}

module handRocket() {
	rocketR = 10;
	rocketL = 40;
	color("grey") translate([10,0,0]) rotate([90,0,0]) {
		cylinder(r=rocketR,h=rocketL,center=true);
		translate([0,0,rocketL/2]) cylinder(r1=rocketR,h=rocketL/3);
		translate([0,0,-rocketL/2-rocketL/4]) cylinder(r1=rocketR,r2=rocketR/2,h=rocketL/4);
		}
	}

module handBomb() {
	rocketR = 10;
	rocketL = 40;
	color("grey") translate([10,0,0]) rotate([90,0,0]) {
		cylinder(r=rocketR,h=rocketL,center=true);
		translate([0,0,rocketL/2]) hemisphere(rocketR); // front end
		translate([0,0,rocketL/2+rocketR]) cylinder(r=rocketR/3, h=rocketL/20); // tip
		translate([0,0,-rocketL/2]) rotate([180,0,0]) hemisphere(rocketR); // back end
		translate([0,0,-rocketL*.75]) {
			difference() {
				union() {
					cube([2*rocketR,2,rocketL/2], center=true);
					rotate([0,0,90]) cube([2*rocketR,2,rocketL/2], center=true);
					}
				cylinder(r=rocketR/3, h=rocketL/2+1,center=true);
				}
			}
		}
	}

module minion() {

	//%color("black") translate([0,0,-75]) rotate([90,0,0]) scale([10,10,2]) write(str(MinionNumber),center=true);

	difference() {
		rotate([0,0,-90]) translate([0,0,baseHeight]) {
			translate([0,0, lowerCenterZ]) rotate([0,lookUD,0]) {
				body();
				}
			legs();
			base();
			}
		translate([0,0,-width/2]) cube([4*bodyHeight,4*bodyHeight,width],center=true);
		}
	}

module minionAssembled(chop) {
	difference() {
		translate([0,0,baseHeight]) {
			translate([0,0, lowerCenterZ+clearance]) rotate([0,lookUD,0]) {
				plateBody();
				}
			plateLegs();
			}
		if(chop) translate([0,-100,0]) cube([200,200,200]);
		}
	}

module plateBody() {
	difference() {
		body();
		translate([0,0, -(lowerCenterZ)]) rotate([0,lookUD,0]) legHoles();
		}
	}

module minionPlate() {
	difference() {
		union() {
			translate([0,-width*3,0])rotate([0,90]) plateBody();
			translate([0,width*3,0]) rotate([0,90]) rotate([0,0,180]) plateBody();
			}
		#translate([0,0,-width/2]) cube([3*bodyHeight,10*bodyHeight,width],center=true);
		}
	translate([0,0,baseHeight]) plateLegs();
	}

module minionPlate(t) {
	difference() {
		rotate([0,90,0]) rotate([0,0,t]) plateBody();
		translate([-bodyHeight,-2*bodyHeight,-6*radiusB]) cube([4*bodyHeight,4*bodyHeight,6*radiusB]);
		}
	}

module minionPlated() {
	spacing = 2*bodyHeight;
	translate([0,0,baseHeight]) plateLegs();
	translate([0,spacing,0]) minionPlate(0);
	translate([0,-spacing,0]) minionPlate(180);
	}

if (part==0) minion();
if (part==1) minionPlate(180);
if (part==2) minionPlate(0);
if (part==3) plateLegs();
if (part==4) plateBody();
if (part==5) minionAssembled(0);
if (part==6) minionPlated();
if (part==7) minionAssembled(1); // cross section

//eye(3);
//body();
//translate([0,0,gogglePos])
//goggles();
//hair(4);
//mouth(1);

//minionPlate();

```


[User]
I'm trying to design a tool for removing push-fit plumbing connectors, like SharkBite fittings. I need it to be parametric so I can adjust it for different pipe sizes. The tool basically needs to be a cylinder with a hole in the middle, and a slot cut out of it, kind of like a C-shape. The idea is that you slide the C-shape around the pipe and then use it to press the release collar on the fitting, allowing you to remove the pipe.

Here's the basic design idea:

*   **Main Body:** A cylinder that forms the main structure of the tool.
*   **Inner Diameter:** The hole through the cylinder, which needs to be sized based on the pipe size. For example, a 16mm inner diameter would work for a standard 1/2" PEX pipe.
*   **Outer Diameter:**  This needs to be big enough to provide sufficient strength, but still be small enough to be useful. 36mm seems like a good starting point.
*   **Thickness:** The height of the cylinder - I'm thinking about 10mm.
*   **Slot:** This is a rectangular cut out of the cylinder that creates the C-shape and allows the tool to be placed around the pipe. It needs to go all the way through the cylinder. The slot needs to be slightly smaller than the inner diameter of the tool, but big enough to allow for the pipe to be put into the middle.

I'd like a parametric OpenSCAD file that allows me to control the:

*   Inner diameter of the tool (for different pipe sizes).
*   Outer diameter of the tool.
*   Thickness of the tool.

Could you generate that for me? I'm not using any external libraries for this.

[Assistant]
pex_push_fit_removal.scad:
```
// Diameter of pipe [mm] *default of 16 fits 1/2"
innerDiameter=16;

// Outer diameter of tool [mm]
outerDiameter=36;

// Thickness of tool [mm]
thickness=10;

difference() {
	cylinder(h=thickness,r=outerDiameter/2);
	translate([0,0,-0.5])
	cylinder(h=thickness+1,r=innerDiameter/2);
	translate([-outerDiameter,-((innerDiameter-1)/2),-0.5])
	cube([outerDiameter,innerDiameter-1,thickness+1]);
}

```


[User] I'd like to create a customizable drink coaster using OpenSCAD. I want to be able to adjust the outer diameter of the coaster, and I'd like a recessed area for the glass to sit in. The base of the coaster should be 4mm thick, and the recessed area should have a 4mm high and wide border. I'm thinking about a cylinder for the main shape, and another smaller cylinder to cut away the recessed part. I'd like a relatively high resolution for the curves, so using `$fn` with a high number would be helpful. Could you generate the OpenSCAD code for this? I'm not using any special libraries.

[Assistant]
Customizable_drink_coaster.scad:
```
// Diameter of drink coaster [mm]
outerDiameter=130;

difference() {
	cylinder(h = 8, r=outerDiameter/2, $fn=200);
	translate([0,0,4])
		cylinder(h = 4, r=(outerDiameter/2)-4, $fn=200);
}
```


[User]
I'm looking to create a parametric model of a fraction bar toy, similar to the Wiener Bruchrechentafel from the early 20th century, specifically designed to be accessible for blind learners. I need an OpenSCAD model that I can adjust to change things like the number of fraction bars, the size of the frame, and the overall thickness.

The design essentially consists of a frame containing a series of fraction bars. Each bar should be divided into equal segments representing different fractions (halves, thirds, fourths, etc). The crucial part is that these bars are designed so they can be felt, so they need to be raised from their base. The frame should also have rounded edges for safety.

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

*   **Number of Bars:** I need to be able to adjust how many fraction bars are included in the frame (e.g., 10, 12, 15).
*   **Border Size:** The thickness of the frame should be adjustable, and this should apply to both the sides and the bottom of the frame, and determine how high the bars stand off.
*   **Bar Spacing:**  I'd like to control the spacing between the fraction bars.
*   **Frame Dimensions:**  The width, length, and height of the frame should be parametric.
*   **Frame Edge Rounding:** The roundness of the frame's outer edge should be adjustable, from completely square to fully rounded.
*   **Minimum Thickness:** There should be a parameter to ensure the model always meets a minimum thickness for 3D printing.
*   **Gaps:**  A tiny gap should be maintained between all parts of the model (bars and frame) to ensure they don't fuse together when printed.
*   **Bar Resolution:**  I need to control the number of segments used to approximate the bars (basically, cylinder resolution).
*   **Frame Border Resolution:** I'd like to be able to adjust the resolution for the rounded edges of the frame.
*   **Part Selection:** I'd like to be able to generate either only the frame, only the bars or the frame with the bars all in one render/export.
*   **Colors:**  I'd like to be able to specify colors for the bars and the frame separately.

I'm not familiar with any existing OpenSCAD libraries so there's no need to use anything special for this one.

Could you generate the OpenSCAD code to achieve this?

[Assistant]
fraction_bars.scad:
```

///////////////////////////////////////////////////////////
//                                                       //
//                     FRACTION BARS                     //
//                                                       //
//              Wiener Bruchrechentafel (1904)           //
//                                                       //
///////////////////////////////////////////////////////////
//                                                       //
//     Parametric Model for OpenSCAD version 2013.06     //
//                  (c) bitcraftlab 2014                 //
//                                                       //
///////////////////////////////////////////////////////////

// Educational tool for teaching fractions to the Blind.
// Original design dates back to 1910 or earlier.

// See: Alexander Mell's "Der Blindenunterricht. Vorträge über Wesen, Methode und Ziel des Unterrichtes
// in der Blindenschule." (Image on Page 112)
// >>> https://archive.org/stream/derblindenunterr00alex#page/112/mode/1up

// Idea to recreate the design for 3D printing by Golan Levin >>> @golan
// Discovery of original design + OpenSCAD model by Martin Schneider >>> @bitcraftlab
// This model is released under CC-BY-SA.

///////////// PARAMS //////////////////////////////////////

/* [Bars] */

// >>> Number of Fraction Bars >>>
bars = 10;  // [1:20]

// >>> Relative BorderSize [0 .. 1]
border_amount = 0.0;

// >>> Try to add Spacing between Bars
bar_spacing = 0.0;

/* [Frame] */

// >>> Width of the Frame
width =  10.0;

// >>> Length of the Frame
length = 14.14;

// >>> Height of the Frame
height = 0.6;

// >>> Roundness of outer Frame Edge [0 .. 1]
rounding = 1.0;

/* [Details] */

// >>> Minimum Thickness of the Model
min_thickness = 0.2;

// >>> Gaps between Parts of the Model
tiny_gap = 0.05;

// >>> Fraction Bar Detail
bar_resolution = 16;

// >>> Frame Border Detail
border_resolution = 16;

/* [Hidden] */

// Part selection does not work in the Thingiverse Customizer App :-(

// >>> Select Parts to Print
parts = "All"; // [Frame,Bars,All]

bar_color = "CornFlowerBlue";
frame_color = "White";

///////////// DEPENDENT VARS //////////////////////////////

// make sure there is always room for the bars
max_border = height - tiny_gap - min_thickness;

// interpolate between valid border sizes
border =  min_thickness + border_amount * (max_border - min_thickness);

// let's assume uniform thickness for all the frame borders (including the bottom)
zgap = border;
xgap = border;

// maximize the radius within the limits imposed by the parameters
min_radius_by_thickness =  tiny_gap + min_thickness;
max_radius_by_length =  (length - (bars + 2) *  min_thickness - bars * bar_spacing ) / (bars + 1) / 2 ;
max_radius_by_height = height - zgap;
max_radius = min(max_radius_by_height, max_radius_by_length);
radius = max(min_radius_by_thickness, max_radius);

ygap = border + radius;

// since we will use a three-fold minkowski multiplication to round off
// the outer edges the rounding radius must be smaller than
// 1/3 of the frame height. It should also be smaller than the frame border

max_rounding = min(height / 3 - 0.000001, border);
border_rounding = max_rounding * rounding;

// inner dimensions of the frame
bar_width = width - 2 * xgap ;
bar_length = length - 2 * ygap;

// output computed values
echo("BORDER", border);
echo("RADIUS", radius);

///////////// MODULES /////////////////////////////////////

module fraction_bar_toy() {

	// flip the y-axis
	mirror([0, 1, 0])

	// center the design ontop of the xy-planr
	translate([-width/2, -length/2, height])

	// rotate the xz-plane to the xy-plane
	rotate([0, 90, 0]) {

		if(parts == "Bars" || parts == "All" ) color(bar_color) fraction_bars();
		if(parts == "Frame" || parts == "All" ) color(frame_color) frame();

	}

}

// create an assembly of fraction bars
module fraction_bars() {

    // reduce bar radius and width by a tiny gap
    fbar_width  = bar_width - tiny_gap;
    fbar_radius = radius - tiny_gap;
    fbar_length = bar_length ;

     dy = fbar_length / bars ;
	for(i = [1:bars]) {
          translate([0, ygap + (i-1) * dy, xgap + tiny_gap ]) {
			fraction_bar(w = fbar_width, r = fbar_radius, fractions = i);
		}
	}

}

// create the frame with grooves for the fraction bars
module frame() {
	difference() {
		frame_box();
    		grooves();
	}
}

// create a simple box, possibly with rounded corners
module frame_box() {
	if(rounding > 0) {
		rounded_cube([height, length, width], d = border_rounding, $fn = border_resolution);
	} else {
		cube([height, length, width]);
	}
}

// create the grooves to hold the fraction bars
module grooves() {
	dy = bar_length / bars ;
	for(i = [1:bars+1]) {
        translate([0, ygap + (i-1) * dy, xgap]) {
			cylinder(h = bar_width, r = radius, $fn = bar_resolution);
		}
	}
}

///////////// SUBMODULES //////////////////////////////////

// compose a fraction bar from scaled cylinder slices
module fraction_bar(w, r, fractions) {

    dx = 1.0 / fractions;
    gap = tiny_gap / w;

    scale([r, r, w]) {
		for(i = [0:fractions-1]) {
			cylinder_slice(x1 = dx * i, x2 = dx * (i + 1) - gap);
		}
    }
}

// a slice of the unit cylinder with radius 1.0
module cylinder_slice(x1, x2) {
    dx = x2 - x1;
    translate([0, 0, x1]) {
		cylinder(h = dx, r = 1.0, $fn = bar_resolution);
	}
}

// create a cube with rounded corners
module rounded_cube(dims, d, $fn = 8) {

	// this may be a bit computationally expensive ...
	minkowski() {
		cube([dims[0] -d*3, dims[1] - d*3, dims[2] - d*3 ] );
	     translate([d/2, d/2, d/2]) cylinder(r = d/2, h = d, center = true);
    		translate([d/2, d/2, d/2]) rotate([0, 90, 0]) cylinder(r = d/2, h = d, center = true);
 		translate([d/2, d/2, d/2]) rotate([90, 0, 0]) cylinder(r = d/2, h = d, center = true);
	}

}

///////////// BUILD ///////////////////////////////////////

fraction_bar_toy();

```


[User]
I'm looking to design a replacement joystick knob for a UDI U816 quadcopter controller. It should be able to attach to the existing controller nub and also have a LEGO axle socket so I can extend the joysticks with LEGO parts.

Here are the basic requirements:

*   **Overall Shape:** The knob should have a slightly flared cylindrical shape, with a narrower base and a wider top. I've got some specific dimensions for the different sections, but I'd like to make these parameters so I can tweak them later.
*   **Internal Structure:** There needs to be a hexagonal socket at the bottom to fit over the controller's joystick nub. There should also be a space for a screw to hold the knob in place, which includes a cylindrical sleeve and space for the screw head. And of course, the LEGO axle socket.
*   **Dimensions:**  I've got some initial measurements, which I'd like to use as default values for the parameters. These are:
    *   `knob_height`: 9.5 mm (minimum 3.167)
    *   `knob_diameter`: 6.3 mm (minimum 6.3)
    *   The base cylinder should be 3.5mm tall and have a radius of 2.65 mm.
    *   The middle section should be 4.3mm tall and transition from a radius of 2.65 to the radius of the top of the knob.
    *   The top cylinder should start at 7.8mm and should be `knob_height` tall with `knob_radius`.
    * The hexagonal nub socket should be 3.5mm tall with a radius of 2mm.
    * The screw sleeve should be 2.3mm tall with a radius of 1.025 mm and starts 3.5mm up.
    * The screw head space should be 2+`knob_z` mm tall, a radius of 1.8mm and starts 5.8mm up.
    * The LEGO axle socket should start 7.8mm up. Its depth should be `knob_z / 9.5` where `knob_z = max(3.167, knob_height)`
*   **Libraries:** I want to use the `MCAD` library for the `regular_shapes` and `lego_compatibility` modules.

Could you generate the OpenSCAD code for this? I think I need at least one file, maybe more depending on how you structure it. Thanks!

[Assistant]
knob.scad:
```
include <MCAD/regular_shapes.scad>;
include <MCAD/lego_compatibility.scad>;

// Minimum of 3.167
knob_height = 9.5;

// Minimum of 6.3
knob_diameter = 6.3;

knob_radius = max(6.3, knob_diameter) / 2;
knob_z = max(3.167, knob_height);

module exterior() {
	union() {
		cylinder(h=3.5, r=2.65, $fs=0.5);
		translate([0, 0, 3.5]) cylinder(h=4.3, r1=2.65, r2=knob_radius, $fs=0.5);
		translate([0, 0, 7.8]) cylinder(h=knob_z, r=knob_radius, $fs=0.5);
	}
}

module interior() {
	union() {

		// sleeve for joystick nub, from regular_shapes
		hexagon_prism(height=3.5, radius=2);

		// flange for screw
		translate([0, 0, 3.5]) cylinder(h=2.3, r=1.025, $fs=0.5);

		// space for screw head (and passage through axle hole)
		translate([0, 0, 5.8]) cylinder(h=2 + knob_z, r=1.8, $fs=0.5);

		// LEGO axle socket, from lego_compatibility
		translate([0, 0, 7.8]) axle(knob_z / 9.5); // block_height = 9.5
	}
}

difference() {
	exterior();
	interior();
}

```


[User]
I'm looking to create some customizable t-nuts for my milling machines, both a small Taig and a larger Bridgeport. I've seen some designs out there, but I'd like something parametric so I can easily adjust it for different t-slot sizes and bolt threads. I'd also prefer to have it in metric, since that's how I typically work.

Essentially, I need an OpenSCAD design that will let me specify:

*   **Total length of the t-nut** (like the "l" variable in the example file)
*   **Total height of the t-nut** (like "h")
*   **Total width of the t-nut** (like "w")
*   **Height of the narrow part of the t-nut** (like "hm")
*   **Width of the narrow part of the t-nut** (like "wm")
*   **Major diameter of the thread** (like "thread\_d")
*   **Pitch of the thread**, but in *mm* not threads-per-inch (so, for example, "2.0" for a 2mm thread pitch rather than the fractional inch based input).

I'd also like an adjustable tolerance value to help with printing. It's important that I can specify this separately for the main body and for the threaded hole. Finally, I'd like the option to chamfer the hole to make starting the screw easier.

I saw one design using Aubenc's threaded fastener library, but I would rather have a system that doesn't rely on external libraries if possible. I don't need anything fancy, but it should be robust enough to be able to scale for both a very small and a relatively larger t-slot.

I know this might be a bit much, but hopefully, you can help me out! Thanks!

[Assistant]
T-nut_customizer.scad:
```
//Customizable t-nut v1 by Eric Monkman
//January 2014

// Several modules from aubenc's threaded fastener library (polyScrewThread_r1.scad at http://www.thingiverse.com/thing:8796) are used to generate the threaded hole.
// CC Public Domain

//CUSTOMIZER VARIABLES

// Total length of t-nut.
l = 0.625;

// Total height of t-nut.
h = 0.5;

// Total width of t-nut.
w = 0.5;

// Height of the narrow part of t-nut.
hm = 0.25;

// Width of the narrow part of t-nut.
wm = 0.25;

// Major diameter of thread.
thread_d = 0.19;

// Pitch of thread in threads-per-inch
thread_p = 32;

// Set a tolerance value to account for finite thickness of plastic strands
tolerance = 0.008;

//CUSTOMIZER VARIABLES END

// Rescale the t-nut so that output is in mm for 3D printing
scale([25.4,25.4,25.4]) tnut(h-tolerance,w-tolerance,l-tolerance,hm,wm-tolerance,thread_d+tolerance,thread_p);

module tnut(h,w,l,hm,wm,thread_d,thread_p)
{
////////////////////////////
// All input in inches, pitch in threads-per-inch (sorry rest of the world...).
// h, w, l: the total height, width and length of the t-nut.
// hm and wm: the dimensions  of the narrow part of the t-nut.
// thread_d, thread_p: the major diameter and pitch of the threaded hole.
////////////////////////////
$fn = 20;

	difference(){
		// Draw basic t-nut shape
		translate([-h/2,-w/2,-l/2]) cube([h,w,l]);
		translate([-h/2,wm/2,-l/2]) cube([hm+0.001,((w-wm)/2)+0.001,l+0.001]);
		translate([-h/2,-w/2,-l/2]) cube([hm+0.001,((w-wm)/2)+0.001,l+0.001]);

		//Chamfer the hole
		translate([-h/2*1.001,0,0]) rotate([0,90,0]) cylinder(h=thread_d*1.2/2,r1=thread_d*1.2/2,r2=0);

		//Thread the hole using aubenc's Library.
		translate([-h/2*1.001,0,0]) rotate([0,90,0]) screw_thread(thread_d,1/thread_p,60,h*1.1,PI/100,1);

	}
}

///////////////////////////////
// Start of aubenc's library //
///////////////////////////////
module screw_thread(od,st,lf0,lt,rs,cs)
{
    or=od/2;
    ir=or-st/2*cos(lf0)/sin(lf0);
    pf=2*PI*or;
    sn=floor(pf/rs);
    lfxy=360/sn;
    ttn=round(lt/st+1);
    zt=st/sn;

    intersection()
    {
        if (cs >= -1)
        {
           thread_shape(cs,lt,or,ir,sn,st);
        }

        full_thread(ttn,st,sn,zt,lfxy,or,ir);
    }
}

module thread_shape(cs,lt,or,ir,sn,st)
{
    if ( cs == 0 )
    {
        cylinder(h=lt, r=or, $fn=sn, center=false);
    }
    else
    {
        union()
        {
            translate([0,0,st/2])
              cylinder(h=lt-st+0.005, r=or, $fn=sn, center=false);

            if ( cs == -1 || cs == 2 )
            {
                cylinder(h=st/2, r1=ir, r2=or, $fn=sn, center=false);
            }
            else
            {
                cylinder(h=st/2, r=or, $fn=sn, center=false);
            }

            translate([0,0,lt-st/2])
            if ( cs == 1 || cs == 2 )
            {
                  cylinder(h=st/2, r1=or, r2=ir, $fn=sn, center=false);
            }
            else
            {
                cylinder(h=st/2, r=or, $fn=sn, center=false);
            }
        }
    }
}

module full_thread(ttn,st,sn,zt,lfxy,or,ir)
{
  if(ir >= 0.01)
  {
    for(i=[0:ttn-1])
    {
        for(j=[0:sn-1])
			assign( pt = [	[0,                  0,                  i*st-st            ],
                        [ir*cos(j*lfxy),     ir*sin(j*lfxy),     i*st+j*zt-st       ],
                        [ir*cos((j+1)*lfxy), ir*sin((j+1)*lfxy), i*st+(j+1)*zt-st   ],
								[0,0,i*st],
                        [or*cos(j*lfxy),     or*sin(j*lfxy),     i*st+j*zt-st/2     ],
                        [or*cos((j+1)*lfxy), or*sin((j+1)*lfxy), i*st+(j+1)*zt-st/2 ],
                        [ir*cos(j*lfxy),     ir*sin(j*lfxy),     i*st+j*zt          ],
                        [ir*cos((j+1)*lfxy), ir*sin((j+1)*lfxy), i*st+(j+1)*zt      ],
                        [0,                  0,                  i*st+st            ]	])
        {
            polyhedron(points=pt,
              		  triangles=[	[1,0,3],[1,3,6],[6,3,8],[1,6,4],
											[0,1,2],[1,4,2],[2,4,5],[5,4,6],[5,6,7],[7,6,8],
											[7,8,3],[0,2,3],[3,2,7],[7,2,5]	]);
        }
    }
  }
  else
  {
    echo("Step Degrees too agresive, the thread will not be made!!");
    echo("Try to increase de value for the degrees and/or...");
    echo(" decrease the pitch value and/or...");
    echo(" increase the outer diameter value.");
  }
}

```


[User]
I need a parametric OpenSCAD design for a tool mount that can hold one, two, or three tools. Each tool is held by a "clip," and the design should let me specify the dimensions of each clip individually, including tool width, tool thickness, the angle of the clip opening, clip thickness, clip height, and elevation of the clip above the base. I also want to control the spacing between clips when more than one is used. The mount should have a base that the clips attach to, and I need to be able to specify the thickness and height of that base.

The design should include screw holes for mounting, and I should be able to specify the screw shaft diameter, screw head diameter, screw length, screw head height, and whether the screw holes are countersunk or flat.

Also, I'd like control over the rendering quality using `$fs` to control the number of facets rendered.

To be super clear, each clip has two rounded vertical sections, and an opening is formed by angling the top edge of those sections towards each other to create a sort of pinch. This pinch part has a small rounded section along the inside of the rounded top of the angled parts of the clip.

[Assistant]
Universal_Tool_Mount_010314.scad:
```
//Universal Tool Mount by John Davis 8-4-13

/*[Number of Clips]*/
//Number of Clips
Clip_Quantity=3;//[1,2,3]

/*[Dimensions of 1st Clip]*/
//1st Tool width
Tool_Width1=6;
//1st Tool thickness
Tool_Thickness1=4;
//Angle of 1st clip opening
Angle1=45;
//1st Clip thickness
Clip_Thickness1=1.34;
//1st Clip height
Clip_Height1=6;
//Clearance between first and second clips
Clip_Clearance1=2;
//Elevation of 1st Clip
Clip_Elev1=0;

/*[Dimensions of 2nd Clip]*/
//2nd Tool width
Tool_Width2=11.7;
//2nd Tool thickness
Tool_Thickness2=11.7;
//Angle of 2nd clip opening
Angle2=45;
//2nd Clip thickness
Clip_Thickness2=4;
//2nd Clip height
Clip_Height2=8;
//Clearance between second and third clips
Clip_Clearance2=2;
//Elevation of 2nd Clip
Clip_Elev2=6;

/*[Dimensions of 3rd Clip]*/
//3rd Tool width
Tool_Width3=12.4;
//3rd Tool thickness
Tool_Thickness3=12.4;
//Angle of 3rd clip opening
Angle3=45;
//3rd Clip thickness
Clip_Thickness3=1.34;
//3rd Clip height
Clip_Height3=10;
//Elevation of 3rd Clip
Clip_Elev3=0;

//Thickness of mount base
Thickness = 2.68;
//Height of base
Height = max(Clip_Height1,Clip_Height2,Clip_Height3);

/*[Screw Dimensions]*/
//Screw shaft diameter
Screw_Shaft_Diameter = 2.5;
//Screw head diameter
Screw_Head_Diameter = 4.3;
//Length of screw hole
Screw_Length = Thickness;
//Screw head thickness or depth of head recesss for countersunk
Screw_Head_Height = 1;
//Countersunk (1) or flat head (0)?
Countersink = 1; //[0,1]

/*[Printer Settings]*/
//To control the number facets rendered, fine ~ 0.1 coarse ~1.0. 0.3 is fine for home printers.
$fs = 0.3;

/*[Hidden]*/
//leave $fn disabled, do not change
$fn = 0;
//leave $fa as is, do not change
$fa = 0.01;
//padding to insure manifold, ignore
Padding = 0.01;

if (Clip_Quantity==1) assign(O1=1,O2=0,O3=0, Height=Clip_Height1){
mount(O1,O2,O3,Height);
}
else if (Clip_Quantity==2) assign(O1=0,O2=1,O3=0,Height=max(Clip_Height1,Clip_Height2)){
mount(O1,O2,O3,Height);
}
else assign(O1=0,O2=1,O3=1,Height=max(Clip_Height1,Clip_Height2,Clip_Height3)){
mount(O1,O2,O3,Height);
}

module mount(O1,O2,O3,Height){
rotate([90,0,0])
difference(){
	union(){
		//mount base
		hull(){
			translate([-Screw_Head_Diameter/2-O1*(Tool_Width1/2+Clip_Thickness1)-O2*(Tool_Width1+Clip_Thickness1+Clip_Thickness1+Clip_Clearance1+Tool_Width2/2+Clip_Thickness2),0,0])
			cylinder(r=Height/2,h=Thickness);
			translate([O1*(Tool_Width1/2+Clip_Thickness1)+O2*(Tool_Width2/2+Clip_Thickness2)+O3*(Clip_Clearance2+2*Clip_Thickness3+Tool_Width3)+Screw_Head_Diameter/2,0,0])
			cylinder(r=Height/2,h=Thickness);
		}

		//1st clip
		translate([-O2*Tool_Width2/2-O2*Clip_Thickness2-O2*Clip_Clearance1-O2*Tool_Width1/2-O2*Clip_Thickness1,-(Height-Clip_Height1)/2,Thickness])
		clip(Tool_Width1, Tool_Thickness1, Angle1, Clip_Thickness1, Clip_Height1, Clip_Elev1);

		//2nd clip
		translate([0,-(Height-Clip_Height2)/2,Thickness])
		clip(Tool_Width2*O2, Tool_Thickness2*O2, Angle2, Clip_Thickness2*O2, Clip_Height2*O2, Clip_Elev2*O2);

		//3rd clip
		translate([Tool_Width2/2+Clip_Thickness2+Clip_Clearance2+Clip_Thickness3+Tool_Width3/2,-(Height-Clip_Height3)/2,Thickness])
		clip(Tool_Width3*O3, Tool_Thickness3*O3, Angle3, Clip_Thickness3*O3, Clip_Height3*O3, Clip_Elev3*O3);
	}

	//screw holes for mount base
	translate([-Screw_Head_Diameter/2-O1*(Tool_Width1/2+Clip_Thickness1)-O2*(Tool_Width1+Clip_Thickness1+Clip_Thickness1+Clip_Clearance1+Tool_Width2/2+Clip_Thickness2),0,Thickness])
	rotate([180,0,0])
	screw_hole(Screw_Length);
	translate([O1*(Tool_Width1/2+Clip_Thickness1)+O2*(Tool_Width2/2+Clip_Thickness2)+O3*(Clip_Clearance2+2*Clip_Thickness3+Tool_Width3)+Screw_Head_Diameter/2,0,Thickness])
	rotate([180,0,0])
	screw_hole(Screw_Length);
}
}

module clip(Tool_Width, Tool_Thickness, Angle, Clip_Thickness, Clip_Height, Clip_Elev){

	union(){
		difference(){
			union(){
				hull(){
					translate([-(Tool_Width/2-Tool_Thickness/2),0,Tool_Thickness/2+Clip_Elev])
					rotate([-90,0,0])
					cylinder(r=Tool_Thickness/2+Clip_Thickness,h=Clip_Height, center=true);
					translate([Tool_Width/2-Tool_Thickness/2,0,Tool_Thickness/2+Clip_Elev])
					rotate([-90,0,0])
					cylinder(r=Tool_Thickness/2+Clip_Thickness,h=Clip_Height, center=true);
				}
				if(Clip_Elev>0) translate([-Tool_Width/2,-Clip_Height/2,-Padding])
				cube([Tool_Width,Clip_Height,Clip_Elev+Tool_Thickness/2+2*Padding]);
			}
			hull(){
				translate([-(Tool_Width/2-Tool_Thickness/2),0,Tool_Thickness/2+Clip_Elev])
				rotate([-90,0,0])
				cylinder(r=Tool_Thickness/2,h=Clip_Height+Padding*2, center=true);
				translate([Tool_Width/2-Tool_Thickness/2,0,Tool_Thickness/2+Clip_Elev])
				rotate([-90,0,0])
				cylinder(r=Tool_Thickness/2,h=Clip_Height+Padding*2, center=true);
			}
			translate([0,0,Tool_Thickness/2+Clip_Elev])
			rotate([90,0,0])
			linear_extrude(height=Clip_Height+Padding*2, center=true)
			polygon(points=[
				[-(Tool_Width/2-Tool_Thickness/2),0],
				[-(Tool_Width/2-Tool_Thickness/2)-sin(Angle)*(Tool_Thickness/2+Clip_Thickness+Padding),cos(Angle)*(Tool_Thickness/2+Clip_Thickness+Padding)],
				[-(Tool_Width/2-Tool_Thickness/2)-sin(Angle)*(Tool_Thickness/2+Clip_Thickness+Padding),cos(Angle)*(Tool_Thickness/2+Clip_Thickness+Padding)+Tool_Thickness/2],
				[(Tool_Width/2-Tool_Thickness/2)+sin(Angle)*(Tool_Thickness/2+Clip_Thickness+Padding),cos(Angle)*(Tool_Thickness/2+Clip_Thickness+Padding)+Tool_Thickness/2],
				[(Tool_Width/2-Tool_Thickness/2)+sin(Angle)*(Tool_Thickness/2+Clip_Thickness+Padding),cos(Angle)*(Tool_Thickness/2+Clip_Thickness+Padding)],
				[Tool_Width/2-Tool_Thickness/2,0]]);
		}
		translate([-(Tool_Width/2-Tool_Thickness/2)-sin(Angle)*(Tool_Thickness/2+(3*Clip_Thickness/4)),0,(Tool_Thickness/2+cos(Angle)*(Tool_Thickness/2+(3*Clip_Thickness/4)))+Clip_Elev])
		rotate([90,0,0])
		cylinder(r=(3*Clip_Thickness/4),h=Clip_Height+Padding*2,center=true);
		translate([(Tool_Width/2-Tool_Thickness/2)+sin(Angle)*(Tool_Thickness/2+(3*Clip_Thickness/4)),0,(Tool_Thickness/2+cos(Angle)*(Tool_Thickness/2+(3*Clip_Thickness/4)))+Clip_Elev])
		rotate([90,0,0])
		cylinder(r=(3*Clip_Thickness/4),h=Clip_Height+Padding*2,center=true);
	}
}

module screw_hole(L){
 	translate([0,0,-Padding])
	union() {
   	cylinder(h=L+Padding*2, r=Screw_Shaft_Diameter/2);
      cylinder(h=Screw_Head_Height, r=Screw_Head_Diameter/2);
		if (Countersink == 1)
			{translate([0,0,Screw_Head_Height-Padding])
			cylinder(h=Screw_Head_Diameter/2-Screw_Shaft_Diameter/2+Padding, r1=Screw_Head_Diameter/2, r2=Screw_Shaft_Diameter/2);
			}
    }
}

```