[User]
Hi, I'm looking for an OpenSCAD design for a customizable key tag. I have some ideas about how it should work, and I'd like to be able to control some parameters.

Essentially, the key tag should have a rounded rectangle shape, with a cylindrical hole for attaching to a keyring. I'd like to be able to specify the overall length, width, and thickness of the tag, as well as the diameter of the hole. It would be great if the corners of the rectangle were filleted.

I also need to be able to add text to the tag. It should be able to accommodate either one or two lines of text. The font, text size, and what the text actually says should all be configurable. The text should be centered vertically on the tag if there's only one line, and for two lines the text should be aligned such that the two lines are equally spaced above and below the center line. I need the text to be extruded so it's raised. I'd also like to be able to adjust the text indent/position a bit.

I would really like the design to allow for different fonts if needed and support bold fonts. It would be awesome if the tag shape, text, and hole parameters could be easily changed from the customizer panel.

Could you generate the OpenSCAD file for me? I don't have any code ready, but I'm okay if you need to use libraries like BOSL for some of the functionality. I think the main shape is easy enough with just basic OpenSCAD though.

[Assistant]
Key_Tag.scad:
```
Length = 55;
Width = 20;
Hole_Diameter = 10;
Thickness = 2;
// You may need to adjust this to fit the tag
Text_Size = 1.4;  // [0.1:0.1:2]
// The default font works well, but change it if you need.
Font = "Liberation San";
// Text on the tag.
Line1 = "Cort's";
// Leave this blank if you only need a single line. The text will auto-resize.
Line2 = "Tesla S";

/* [Hidden] */
$fs=0.1; // Circle Resolution
//Hole_Radius = (Width-6)/2;
Hole_Radius = Hole_Diameter/2;
Filet = 2;
Text_Indent = 1.5;
//Font_and_Style = "Liberation San:style=Bold";
Font_and_Style = str(Font,":style=Bold");

difference(){
    union(){
        translate([Filet,Filet,0]) cylinder(r=Filet,h=Thickness);
        translate([Filet,Width-Filet,0]) cylinder(r=Filet,h=Thickness);
        translate([0,Filet,0]) cube([Filet,Width-Filet*2,Thickness]);
        translate([Filet,0,0]) cube([Length-Width/2-Filet,Width,Thickness]);
        translate([Length-Width/2,Width/2,0]) cylinder(r=Width/2,h=Thickness);
    }
    translate([Length-Hole_Radius-3,Width/2,-1]) cylinder(r=Hole_Radius,h=Thickness+10);
    if (Line2 == "") {
        translate([Text_Indent,Width/2,Thickness-1]) linear_extrude(2) scale([Text_Size,Text_Size,1]) text(Line1, font=Font_and_Style,valign="center");
    } else {
        translate([Text_Indent,Width/2+0.5,Thickness-1]) linear_extrude(2) scale([Text_Size/2,Text_Size/2,1]) text(Line1, font=Font_and_Style,valign="bottom");
        translate([Text_Indent,Width/2-0.5,Thickness-1]) linear_extrude(2) scale([Text_Size/2,Text_Size/2,1]) text(Line2, font=Font_and_Style,valign="top");
    }
}
```


[User]
Hey, I need some help designing a dishwasher wheel stopper. I've got an existing design in OpenSCAD, but it's not very flexible and I'd like to make it parametric so I can adjust it easily.

The basic idea is a kind of elongated, curved C shape that clips onto the dishwasher rack. I have the measurements for my rack, but I might need to make some adjustments if it doesn't fit quite right for others. It needs to have a flat, curved surface that keeps the wheel from rolling past.

The key dimensions are:

*   `height`: This is the length of the main part of the stopper, kind of the reach.
*   `width`: The width of the bar where the wheels touch.
*  `wall_thickness`: This will affect how easy the part is to bend when installed and how strong it is
*  `hole_distance`: The distance from the wheel catching surface to the point where it attaches to the dishwasher.
*   `hole_diameter`: The diameter of the "peg" at each end that sits between the bars on the dishwasher.

Basically, it's two half-cylinders connected by a thin section, with the half cylinders having a notch cut from the interior. It's important to get the sizes just right so it doesn't slip, but not so tight it breaks during install. The default values i have found that work are 27.5 for `height`, 10 for `width`, 1 for `wall_thickness`, 4.5 for `hole_distance`, and 2.5 for `hole_diameter`

It's going to be used in a dishwasher, so ABS or PETG would be best to avoid warping/melting. I'm hoping for an OpenSCAD design that is fully parametric so I can adjust each dimension as needed. I'd prefer a single .scad file with all the code in it if that's possible.

[Assistant]
dishwasher_wheel_stopper.scad:
```
height=27.5;

width=10;

wall_thickness=1;

hole_distance=4.5;

hole_diameter=2.5;

$fn=20*1;

difference()
{
	hull()
		{
		cylinder(r=width/2+wall_thickness,h=hole_distance+wall_thickness+hole_diameter);
		translate([height-width,0,0])
		cylinder(r=width/2+wall_thickness,h=hole_distance+wall_thickness+hole_diameter);
		}
	translate([0,0,wall_thickness])
	hull()
		{
		cylinder(r=width/2,h=hole_distance+hole_diameter+0.1);
		translate([height-width,0,0])
		cylinder(r=width/2,h=hole_distance+hole_diameter+0.1);
		}
	translate([(height-width)/2,-(width+wall_thickness*2+0.2)/2,+wall_thickness])
		cube([1,width+wall_thickness*2+0.2,hole_distance*2+0.1]);
}

translate([-width/2,0,hole_distance+wall_thickness])
sphere(r=hole_diameter/2);
translate([height-width/2,0,hole_distance+wall_thickness])
sphere(r=hole_diameter/2);
```


[User]
I need a parametric OpenSCAD design for a 3-way tube connector. Imagine three tubes coming in and connecting to a single tube in the center. Think of it like a Y-splitter, but with all three inputs coming in at 120-degree angles from each other, rather than two at an angle and one in the middle.

The design should be highly customizable, so I need these parameters:

*   `hole_diameter`: The inner diameter of the tubes.
*   `wall_thickness`: The thickness of the connector's walls.
*   `insertion_depth`: How far each tube will be inserted into the connector.
*  `bend_height`: The height of the bend/transition between the incoming tube section and the main body.
* `hole_resolution`: This dictates the number of segments used to create the circular holes for the tubes.
*   `bend_resolution`: This controls the number of segments for the curved transitions.

The tubes should connect at equal angles, and there should be a smooth curved transition from the incoming tube sections to a central hub. The connector will have a central "body" part that is cylindrical with a constant inner and outer diameter. The input tubes will extend out from the body, with both the main body and the extensions having straight cylindrical tube portions that go up to the final hole diameter. The tubes will curve from the cylinder outward and then turn to be inline with the axis of the cylinder.

The overall structure is a cylinder in the center, from which three curved tubes project out at 120 degrees. The final part of the tubes (where you insert them) should be cylindrical with a diameter matching the tube you'd insert, going in parallel to the main cylinder. The curvature should be in a smooth S shape.

It would be great if you could provide all the code in one file, and please don't use any libraries.

[Assistant]
tube_connector_3-1.scad:
```
hole_diameter=4.5;

hole_resolution=20;//[6:50]

wall_thickness=1;

insertion_depth=10;

bend_height=7;

bend_resolution=15;//[5:30]

radius_to_hole_center=(hole_diameter+wall_thickness)/sqrt(3);

difference()
{
positive_shapes(hole_diameter,wall_thickness,insertion_depth,radius_to_hole_center,bend_height);
translate([0,0,-0.5])
negative_shapes(hole_diameter,wall_thickness,insertion_depth,radius_to_hole_center,bend_height,bend_resolution);
}

module positive_shapes(
    HD,
    WT,
    ID,
    RHC,
	BH,)
{
	cylinder(r=HD/2+WT+RHC,h=ID+BH/2);
	translate([0,0,ID+BH/2])
		cylinder(r1=HD/2+WT+RHC,r2=HD/2+WT,h=BH/2);
	translate([0,0,ID+BH])
	cylinder(r=HD/2+WT,h=ID);
}

module negative_shapes(
    HD,
    WT,
    ID,
    RHC,
	BH,
    BR)
    {
    for(i=[0:120:359])
        {
        rotate([0,0,i])
        translate([cos(i)*RHC,sin(i)*RHC,0])
            {
			cylinder(r=HD/2,h=ID,$fn=hole_resolution);
			translate([0,0,ID])
			rotate([0,0,i])
				s_bend(RHC,BH,BR)
				   cylinder(r=HD*9/20,h=0.1,$fn=hole_resolution,center=true);
            }
        }
		translate([0,0,ID+BH])
			cylinder(r=HD/2,h=ID+1,$fn=hole_resolution);
    }

module s_bend(X,Z,BR)
    {

		degree=atan((X*2)/Z);
		echo (degree);
		step=degree/BR;
		echo(step);
        for(i=[0:step:degree-step])
        {
		hull()
			{
			translate([(((cos(i)-cos(degree))/(1-cos(degree))*X/2)-X/2),0,((sin(i)/(sin(degree))*Z/2))])
			rotate([0,-i,0])
				children();
			translate([(((cos(i+step)-cos(degree))/(1-cos(degree))*X/2)-X/2),0,((sin(i+step)/(sin(degree))*Z/2))])
			rotate([0,-i-step,0])
				children();
			}

			hull()
				{
				translate([-X/2,0,Z])
					{
					mirror([1,0,0])
					mirror([0,0,1])
						{
					translate([(((cos(i)-cos(degree))/(1-cos(degree))*X/2)),0,((sin(i)/(sin(degree))*Z/2))])
					rotate([0,-i,0])
						children();
					translate([(((cos(i+step)-cos(degree))/(1-cos(degree))*X/2)),0,((sin(i+step)/(sin(degree))*Z/2))])
					rotate([0,-i-step,0])
						children();
						}
					}
				}
		}
    }

```


[User]
I want to design a lollipop bouquet holder. It should be a sphere with a bunch of holes in it for the lollipop sticks, sort of like a porcupine. The bottom needs to be cut off to create a flat base, so it can stand up. I'd like to be able to adjust the sphere's radius, how much of the bottom is removed, the lollipop stick diameter, how many total sticks there are, and how deep the sticks go into the base.

I think it'd be best to have parameters at the top of the file for each of these so I can easily modify them. Something like:

* `SPHERE_RADIUS`
* `PERCENT_BASE` (representing the fraction of the sphere to keep - so 0.2 would cut off the bottom 80% of the sphere)
* `STICK_RADIUS`
* `TOTAL_STICKS`
* `STICK_HEIGHT`

It would be great if the sticks are distributed pretty evenly across the sphere's surface, not just randomly placed. And it might be good to use a golden ratio approach to place them. Also, I'd prefer to use the `difference()` function with the sphere and a cube to remove the bottom portion, and another `difference()` to create the holes with the sticks. I'd like to use the built-in `sphere()` and `cylinder()` primitives.

I don't think I need any special libraries or modules for this. I am using OpenSCAD.

[Assistant]
lollipopBouguet.scad:
```
/* [Base] */

SPHERE_RADIUS = 20;
PERCENT_BASE = 0.2;

/* [Sticks] */

STICK_RADIUS = 1.9;
TOTAL_STICKS = 150;
STICK_HEIGHT = 8;

/* [Hidden] */
CUBE_SIZE = 2*SPHERE_RADIUS;

 offset = (PERCENT_BASE-1)*(CUBE_SIZE);
 difference()
 {
    fullSphere();
    translate([0,0,offset])
     cube(CUBE_SIZE, center=true);
 }

module fullSphere()
{
  difference()
    {
     sphere(r= SPHERE_RADIUS, center=true, $fn=100);
     sticks();
    }
}

module stick()
{
    translate([0,0,1+SPHERE_RADIUS-STICK_HEIGHT/2])
      cylinder(r=STICK_RADIUS, h=STICK_HEIGHT, center=true, $fn=20);
}

module sticks()
{
    phi = (sqrt(5)+1)/2 - 1;
    ga = phi * 2 * PI;
    union()
    {
       for (i = [1:TOTAL_STICKS])
       {
          rotate([degrees(ga*i),0, 0])
           rotate([0,asin(-1 + 2*i/TOTAL_STICKS),0])
            stick();
       }
    }
}
function degrees(x) = ((180*x)/PI);

```


[User]
Okay, I'm looking to create a customizable spool hub for 3D printing, similar to the one I've already designed, but I want to make it even more flexible and include more adjustable features. I'd like it to be parametric so I can easily adjust the dimensions to fit various spools and rods.

Specifically, I need the following parameters:

*   **`Hub_Diameter`**: This is the outer diameter of the hub, and it should be slightly larger than the spool's inner diameter (say, 2mm larger) to ensure a snug fit.
*   **`Hole_Diameter`**: This is the diameter of the hole in the center of the hub for the spool rod. It should be slightly larger than the rod's diameter.
*   **`Core_Diameter`**: The diameter of the central core of the hub. This parameter provides stability and should be adjustable based on `Hub_Diameter` and `Hole_Diameter`.
*   **`Thickness`**: The overall thickness of the hub. This should be configurable to be at least 2mm thicker than the wall of a spool to allow for the catch feature.
*   **`Number_of_Arms`**: The number of arms connecting the core to the outer diameter. It should be adjustable and typically be 3 or more for stability.

I also want the design to have a "catch" feature on each arm. This feature should be generated parametrically based on the outer hub diameter (`Hub_Diameter`), but it does not need to be adjusted independently by the user.

I like the general design I have already; however, I'm going to try to explain everything clearly here, as I need you to generate the SCAD files from scratch.

The general shape of the hub consists of the central core (a cylinder), arms that extend from the core to the outer hub diameter and a catch feature (small cylinders) on each arm. These arms should transition smoothly from the core and then end with a small cylindrical "tip" at the outer radius to provide an interface for attaching a spool. The "catch" features should be two small cylinders located near the tip of each arm, one on the top side and one on the bottom side, to prevent the spool from sliding off. The central hole should extend all the way through the hub.

Here is a breakdown of the modules/shapes I need:

1.  **Core:** A simple cylinder centered at the origin, with a diameter of `Core_Diameter` and a height of `Thickness`.
2.  **Arm:**
    *   Each arm is a combination of a cylinder and two small cylinders that create the "catch".
    *   The main part of the arm should start at the core and extend to the outer radius.
    *   The "catch" cylinders should be positioned near the outer edge of each arm, one on the top surface and one on the bottom surface of the arm, and should be parametrically determined by the `Hub_Diameter`.
    *   The arms should be created using a subtraction of one cylinder from a larger one, to ensure a smooth transition from the center.
    *   The arm should also have a small tip at the outer radius.
3.  **Central Hole:**  A cylinder centered at the origin, with a diameter of `Hole_Diameter` and a height slightly larger than `Thickness`, so it goes all the way through the hub.
4.  **Assembly:**
    *   The main assembly should consist of the core, and multiple arms rotated around the center by 360 degrees / `Number_of_Arms`.
    *   The central hole should be subtracted from the assembly.

I would prefer a single SCAD file for this project if possible. I'm hoping this is clear enough. Let me know if you need any further clarification. I do not need you to use any custom libraries, so please do not assume that there are any.

[Assistant]
Spool_Hub.scad:
```
// This should be 2mm larger that the hole in your spool. Eg. 60mm for a 58mm spool hole.
Hub_Diameter = 60;

// Hole in the hub for the spool rod. Should be slighly larger than the rod diameter.
Hole_Diameter = 10;

// Core of the hub. The default should usually be good, but you may need to adjust for very large hole or small hub.
Core_Diameter = 24;

// Thickness of the hub. It should at least 2mm thicker than the wall of your spool to cater for the catch on the hub.
Thickness = 12;

// You need at least 3 to be stable, but feel free to go crazy with this one.
Number_of_Arms = 3;

/* [Hidden] */
Catch_Thickness = 1;
Core_Radius = Core_Diameter / 2;
Catch_Radius = Hub_Diameter / 60 * 3;
Catch_X = Hub_Diameter / 60 * 27.86;
Catch_Y = Hub_Diameter / 60 * 2.1;
Hub_Radius = Hub_Diameter / 2;
Arm_Radius = (Hub_Radius + Core_Radius)/2;
Arm_Inner_Radius = Hub_Diameter / 4;
Tip_Width = Hub_Diameter / 30;

$fs = 0.5;

module Arm(){
    difference(){
        union(){
            translate([Hub_Radius-Arm_Radius,0,0]) cylinder(r=Arm_Radius,h=Thickness);
            translate([Catch_X,Catch_Y,0]) cylinder(r=Catch_Radius,h=Catch_Thickness);
            translate([Catch_X,Catch_Y,Thickness-Catch_Thickness]) cylinder(r=Catch_Radius,h=Catch_Thickness);
        }
        translate([Hub_Radius-Arm_Inner_Radius-Tip_Width,0,-1]) cylinder(r=Arm_Inner_Radius,h=Thickness+2);
        translate([0,-Hub_Radius,0]) cube([Hub_Diameter,Hub_Diameter,Thickness*2+2],center=true);
    }
    translate([Hub_Radius-Tip_Width/2,0,0]) cylinder(d=Tip_Width,h=Thickness);
}

difference() {
    union() {
        cylinder(r=Core_Radius,h=Thickness);
        for (a =[0 : 360/Number_of_Arms : 360])
            rotate([0,0,a]) Arm();
    }
    translate([0,0,-1]) cylinder(d=Hole_Diameter,h=Thickness+2);
}
```


[User]
Hi there, I'm looking to design a bioreactor lid, and I've got some specific requirements. I need a parametric OpenSCAD file that can generate a lid with adjustable dimensions and various holes.

Here’s the breakdown:

**Main Body:**

*   The lid should be a cylindrical shape.
*   I need to control the overall **Height**, **RimHeight**, **OuterDiameter**, and **InnerDiameter**.
*   There should also be a **WallThickness** parameter.
* The lid should have a rim (that does not extend below the height of the main body) with some strengthening ribs on the outside.

**Holes:**

*   I need a parameter for the number of **PipeHoles**, and their **HoleDiameter**.
*   The **HolePosition** should be adjustable, represented as a percentage of the distance between the inner and outer diameters. This allows me to control how far they are from the center.
*   There needs to be a **CenterHole** with a settable diameter.
*   I also need a **MotorHole** for a motor shaft, and a **HexHole** for a hex key, each with their own diameters. The motor hole should have two additional holes placed at the same distance from the center to align screws.
*   The holes should also be parametric - they should not extend below the bottom of the part by the defined WallThickness value.
*   The pipe holes should have a countersunk rim for a tight fit of the pipes.
*   The pipe holes should have a notch in their sides for secure tube fixing.

**Additional Features:**

*   I need a small rim for a steel spring on the inside of the main lid at a set distance from the center of the part.
*   I need another rim for an o-ring on the inside of the main lid at a slightly larger distance from the center of the part than the spring rim.

**General Requirements:**

*   I’d prefer to control the fineness of the curves with a `$fn` variable.
*   I'd also like a separate `$fnLid` variable for the base cylinder of the lid.
*   I’m not looking to use any specific libraries.

Can you help me generate this OpenSCAD code?

[Assistant]
bioreaktor_deckel_motorInset.scad:
```

//LABELS FOR CUSTOMIZER

// Adjust parameters here:
/*[Main]*/
Height = 8; //
RimHeight = 8; //
OuterDiameter = 95; // 95, 70
InnerDiameter = 78; //  78, 40
WallThickness = 2.5;

/*[Holes]*/
PipeHoles = 3; //
HoleDiameter = 8.8; // to fit 8mm pipe
HolePosition = 95; // 100% is outer limit
CenterHole = 10; //
MotorHole =20; //
HexHole = 0; //

/*[Hidden]*/
fn=30;  //100 is good, 30 is for viewing
fnLid=16;  //10 is cool

module SolidLid(){
    //Main
    color("deeppink") translate([0,0,0]) cylinder(h=Height,d=OuterDiameter, $fn = fnLid);
    color("pink") translate([0,0,Height*1]) cylinder(h=6,d=InnerDiameter, $fn = fn);

    // Outer Rim
    //SolidLidRim();

    //Rim
   translate([0,0,Height]) cylinder(h=2,d1=OuterDiameter-WallThickness*2+0, d2=InnerDiameter, $fn = fn);
}

module SolidLidRim(){
    difference(){
    color("deeppink") translate([0,0,Height]) cylinder(h=RimHeight,d=OuterDiameter, $fn = fn);
        translate([0,0,WallThickness]) cylinder(h=Height*5,d=OuterDiameter-WallThickness*2, $fn = fn);
    }
    for(i = [0 : 3]) color("deeppink") rotate([0, 0,i*90]) translate([(OuterDiameter-WallThickness*2-2)/2,0,RimHeight+Height-2]) scale([0.12,0.8,1]) cylinder($fn = fn, h = 2, d = 20);
}

difference(){
    SolidLid();
    //Center
    translate([0,0,WallThickness+1]) cylinder(h=Height*5,d=InnerDiameter-2*WallThickness, $fn = fn);
    //Rim for steel spring
    translate([0, 0, Height-4]) rotate_extrude(convexity = 10, $fn = fnLid) translate([OuterDiameter/2, 0, 0]) circle(d = 2.5, $fn = fn);
    //Rim for o-ring
    translate([0, 0, Height+3]) rotate_extrude(convexity = 10, $fn = fn) translate([InnerDiameter/2+1, 0, 0]) circle(r = 1.5, $fn = fn);

    //holes: Center
     translate([0,0,-2]) cylinder(h=40,d=CenterHole, $fn = fn);
    //holes: MotorIntent
    translate([4,0,-2]) cylinder(h=WallThickness+1,d=MotorHole, $fn = fn);
    translate([4,-7,-2]) cylinder(h=80,d=3, $fn = fn);
    translate([4,7,-2]) cylinder(h=80,d=3, $fn = fn);
    //holes: Hexagonal
    rotate([0, 0, 0]) translate([0.9*(InnerDiameter/2-WallThickness-HexHole/2), 0, -5])  rotate([0, 0, 30]) cylinder($fn = 6, h = 50, d = HexHole);
    //holes: Circumference
    for(i = [0 : PipeHoles-1]) rotate([0, 0, ((i +2)* (360 / (PipeHoles+3)))]) translate([HolePosition/100*(InnerDiameter/2-WallThickness-HoleDiameter/2), 0, -5]) cylinder($fn = fn/2, h = 50, d = HoleDiameter);

}
difference(){
for(i = [0 : PipeHoles-1]) rotate([0, 0, ((i +2)* (360 / (PipeHoles+3)))]) translate([HolePosition/100*(InnerDiameter/2-WallThickness-HoleDiameter/2), 0, 0]) cylinder($fn = fn, h = 16, d = HoleDiameter+2*WallThickness);

   for(i = [0 : PipeHoles-1]) rotate([0, 0, ((i +2)* (360 / (PipeHoles+3)))]) translate([HolePosition/100*(InnerDiameter/2-WallThickness-HoleDiameter/2), 0, -1]) cylinder($fn = fn/2, h = 30, d1= HoleDiameter, d2 = HoleDiameter*0.9);

    for(i = [0 : PipeHoles-1]) rotate([0, 0, ((i +2)* (360 / (PipeHoles+3)))]) translate([HolePosition/100*(InnerDiameter/2-WallThickness-HoleDiameter/2), -8, WallThickness+1]) cube([1,16,50]);

}

```


[User]
Hey, I'm trying to design a parametric propeller for a project, and I'm having a bit of trouble getting it exactly how I want. I have a basic concept, but it needs a lot of work.

Here's what I'm aiming for:

**Core Structure:**

*   **Central Hub:** A sphere that acts as the core, with a cylindrical extension going down from it for a shaft connection.
*   **Base:** A flat, circular base that the fins attach to, with a slightly smaller circular recessed area to create a lip. Think of it like a thick washer where the inner circle is a little bit lower than the outer one.
*   **Centering Hole:** A precisely sized hole going through the whole thing, with a slightly larger countersunk entry on both sides to accommodate bolts.
*   **Optional Connector:** A cylinder protruding from the bottom to create a connector between multiple parts (we can look at this later though if the basic prop is hard enough).

**Fins:**

*   **Shape:** I'd like the fins to have an elliptical cross-section. They should be twisted along their length, kind of like a propeller blade. I like how the existing file achieves this with a linear extrude with a twist parameter, and it should have a variable slice count.
*   **Arrangement:** The fins should be evenly spaced around the circumference of the circular base. I need to control how many fins there are.
*   **Thickness:** The fins should have a defined, adjustable thickness.
*   **Angle:** The twist angle of the fin should be adjustable.

**Parameters:**

I'd like to be able to adjust all of these things via parameters at the beginning of the file:

*   `fs`: Minimum facet size for smoother curves.
*   `fa`: Degrees per facet.
*   `fn`: Number of facets for circles and spheres.
*   `nslices`: Number of slices for the fin twist extrusion.
*   `trad`: The outer radius of the main circular base (before adding outw).
*   `outw`: The width of the outer ring on the base.
*   `nfins`: The number of fins.
*   `rins`: The radius of the central hub sphere and shaft cylinder.
*   `tdepth`: The overall depth of the propeller (how far the fins go in the Z-direction).
*   `fangle`: The twist angle of the fins.
*   `bevh`: The bevel height for the lip on the base.
*   `tfin`: The thickness of the fins.
*   `chrad`: Radius of the centering hole (the main through hole).

I think that's everything. I'm looking for a parametric design, so I can tweak it for different uses. Let me know if you have any questions or need more information! I'd prefer a single file if possible, but if it needs to be broken up, that's okay too. I'm not using any custom libraries like BOSL or MCAD.

[Assistant]
propellerimprovedfins.scad:
```
//Parametric propeller using an ellipse for the fin shape, twisted by an angle.
//There are probably better ways to do this.
//Creative Commons license.

fs=.2;   //.2 is good, 2 is for viewing, facet size
fa=4;	 //4 is decent, 12 is for viewing, deg per facet
fn=50;  //40 is good, 10 is for viewing
nslices=25; //15 is good, 5 is for viewing
trad=30; //outerradius not counting outw. 23.5 good
outw=0; //outerwidth. 1.5 is good
nfins=5; //number of fins. Min # is 2, but 3 is better
rins= 7; //radius of coupling thing, 5 is good
tdepth = 12; //depth of prop. reduce if nfins is big, 3 good
fangle = 60; //angle of fins, 60 is good for printing?
bevh = 0; // bevel height
tfin = 1.5; //thickness of fins, 1 is good
chrad = 2.2; //centering hole radius

module total(fs,fa,fn,nslices,trad,outw,nfins,rins,tdepth,fangle,bevh,tfin)
{  //.5, 4, 40, 12
$fs=fs;$fa=fa;$fn=fn;  //default $fs,$fa,$fn is 2,12,10,min facet size,deg.per facet,etc
module fin()
{union(){rotate([-fangle,0,0]){union() {
			cube([119, 119, tfin]);
				translate( [119,0,.5*tfin]){
rotate([0,-90,0]) cylinder (h=119,r=.5*tfin);}
}}};
}
module betterfin()
{
	rotate([90,0,90])
	linear_extrude(height=trad, center=false, convexity=10, twist=fangle, slices=nslices)
	scale([tfin/tdepth,1,1]) circle(r = tdepth);
}

union(){
	difference(){
		union(){
			sphere(r=rins);
			translate([0,0,-119]) cylinder(h=119,r=rins);
			difference(){
				translate([0,0,-14]) cylinder(h=15,r=trad+outw);
				translate([0,0,-15]) cylinder(h=17,r=trad);}
		}
		translate([0,0,-119-tdepth]) cylinder(h=119,r=trad+outw+119);
	}
	translate([0,0,1])
	difference(){
		translate([0,0,0]) cylinder(h=bevh, r1=trad+outw, r2=trad); //bevel
		translate([0,0,-10]) cylinder(h=119, r=trad);}
	intersection(){
		union(){for (i = [0:(nfins-1)]){rotate([0,0,360*i/nfins]) betterfin();}	}
		translate([0,0,-.5*119]) cylinder(h=119,r=trad);}
}
}

difference(){ //This difference is to add a centering hole

	difference(){total(fs,fa,fn,nslices,trad,outw,nfins,rins,tdepth,fangle,bevh,tfin);
		//Difference so that it will print nice. Otherwise it wouldn't.
		translate([0,0,-119-3]) cylinder(h=119,r=119);} //This is to trim it flat
	translate([0,0,2]) cylinder(h=30,r=chrad, $fn = 60);  //centering hole
    //translate([0,0,-120]) cylinder(h=119,r=chrad+1.6, $fn = 6);  //centering hole
    translate([0,0,-2]) cylinder(h=20,r=4.2, $fn = 60);  //centering hole
}

/*
difference(){ //This difference is to add connector
translate([0,0,-0]) cylinder(h=14,r=chrad+2.5, $fn = 6);  //centering hole
    translate([0,0,-19]) cylinder(h=119,r=chrad, $fn = 60);  //centering hole
}
*/

  difference(){ //This difference is to add connector
       color("deeppink") translate([0,0,-3]) cylinder(h=18,r=8, $fn = 100);

      translate([0,0,1]) cylinder(h=20,r=4.3, $fn = 60);  //centering hole

 }

```


[User]
Hey, I'm looking to make a customizable twisted polygon vase. I've seen some examples online, and I'm hoping you can help me generate the OpenSCAD code for it. Basically, I want to be able to adjust the following parameters:

*   **Vase Height:** The overall height of the vase in millimeters.
*   **Bottom Radius:** The radius of the vase at the base (and the top, for now), from the center to a corner of the polygon.
*   **Number of Sides:** The number of sides of the polygon used to make the vase (e.g., 6 for a hexagon, 8 for an octagon). This will apply to both top and bottom of the vase. I'm thinking this will need to be a fairly low number, like less than 12.
*  **Twist Factor:** This is the fun part! I want to be able to adjust a single "twist factor" which will cause the vase to twist as it goes up. This will be applied in both the positive and the negative direction, creating two twisted sections that come together at the center of the vase. I'm looking for something that will give me unique shapes each time I use it.
*   **Slice Layers:** I would also like to be able to adjust the number of slices to build the vases. I suspect there's a relationship between this number and the twist factor, but I'm okay with them being separate parameters for now.

I'm thinking the vase will be created by extruding a polygon, and then scaling and rotating it as it goes up. I'd like the base and top to remain the same size, but there is to be a twist applied that would make it unique.

For the polygon generation, I believe you'll need to use the `regular_shapes.scad` library from MCAD. Please include that in your code.

I'm not entirely sure how to create the twist effect, but hopefully you can help. Let me know if you have any questions!

[Assistant]
Magic-Customizable-Twisted-Polygon-Vase-Maker.scad:
```
// Magic Customizable Twisted Polygon Vase Maker
// This started as..
// Customizable Twisted Polygon Vase - http://www.thingiverse.com/thing:270130/#files

use <MCAD/regular_shapes.scad>;

// Approximate Height of Vase(mm)
vase_height = 90;
//Approximate Radius of Vase (mm)
bottom_radius = 25;

// The Vase is an extruded regular polygon - polygon type in the regular_shapes funciton
// - Side of extruded regular polygon (Best < 12)
number_of_sides = 6;

// USE THIS ONE WITH CUSTOMIZER
// Comment this out if using OpenSCAD, and uncomment OpenSCAD section below.
// - Use the slider to choose a value for NA
Random_Na = 9168; // [1:1:9999]

// Manually Define a Na Value
// - Overrides the slider above unless set to 0
Manual_Na = 0;

// Some Favorites
//6Side: 7065, 9503, 9168, 1418
//Side: 6354, 2062, 2448, 6171, 7222

// USE THIS ONE WITH OPENSCAD
// comment this out if using Customizer
// OpenSCAD chooses a random value for Na
//Random_Na = floor(rands(1,9999,1)[0]);

/* Start the Magic */
// set Na according to Value used above
Na = (Manual_Na==0) ? Random_Na : Manual_Na;
echo(Na);

// Top and bottom radius need be be equal for vase to work!
// Bottom circumradius (mm from center to corner)
// Top circumradius (mm from center to corner)
top_radius = bottom_radius;
// These also need to be equal, for the Magic to work :-)
Nb = Na;
number_of_sides2 = number_of_sides;

// This was all created at random, i can't follow the logic
slice_layers = (.5*number_of_sides)*((Na + Nb)/Nb);
slice_layers2 = (.5*number_of_sides)*((Na + Nb)/Na);

// Could have something to do with twist of top surface relative to bottom.
top_rotation = (.5*number_of_sides)*number_of_sides * (Nb/(.5*number_of_sides)) * slice_layers ;

// Could have something to do with twist of top surface relative to bottom.
bottom_rotation = (.5*number_of_sides)*number_of_sides2 * (Na/(.5*number_of_sides)) * slice_layers2;

top_scale = top_radius / bottom_radius;

// making a vase top to bottom
for ( i = [1 : (vase_height/slice_layers) : vase_height] ){
    rotate([0, 0, i]) {

        translate([0,0,i]) {
            hull() {
                linear_extrude(
                        height = (vase_height/slice_layers),
                        twist  = top_rotation/(vase_height/slice_layers),
                        slices = slice_layers,
                        scale  = top_scale)
                union() {
                    reg_polygon(
                            sides  = number_of_sides,
                            radius = bottom_radius);
                    reg_polygon(
                            sides  = number_of_sides2,
                            radius = bottom_radius);
                } //union
            } //hull
        } // translate
    } // rotate
}; // for i

// Doing something in the reverse of the loop above
for ( j = [vase_height : -(vase_height/slice_layers2) : 0] ){
    rotate([0, 0, j]) {
        translate([0,0,j]) {
            hull() {
                linear_extrude(
                        height = (vase_height/slice_layers2),
                        twist  = bottom_rotation/(vase_height/slice_layers2),
                        slices = slice_layers2,
                        scale  = top_scale)
                union() {
                    reg_polygon(
                            sides  = number_of_sides2,
                            radius = bottom_radius);
                    reg_polygon(
                            sides  = number_of_sides,
                            radius = bottom_radius);
                } //union
            } //hull
        } // translate
    } // rotate
}; // for j

```


[User]
I'm looking to create a clamp for my CNC table, specifically designed for holding down thin materials like PCBs and plastics. My current design, which I'll describe below, is functional, but I'd like to make it fully parametric so that I can easily adjust it for different material thicknesses and clamping pressures.

The basic clamp consists of a few parts that should all be combined into a single solid object:
*   A bottom plate that rests on the table. This has a rectangular base with a raised section at the end to provide extra height under the clamping area. It also has a hole through it for a screw.
*   A vertical clamping plate that extends upward from the bottom plate at an angle. This is the part that will actually press down on the material.
*   Two support structures on either side that extend from the base up to the vertical clamping plate to help keep the structure stable.

Here's a breakdown of the dimensions and parameters I'd like to control:

*   `clampHeight`: The overall height of the clamp, excluding the table rise. (default 10, range 10-50, step 0.2).
*   `clampWidth`: The overall width of the clamp. (default 30, range 20-50)
*   `clampDepth`: The thickness of the clamp material. (default 4, range 1.5-8, step 0.1)
*   `clampAngle`: The angle at which the vertical clamping plate is angled forward. (default 8, range 0-20, step 0.1)
*   `holeDiameter`: The diameter of the screw hole. (default 7, range 5-9, step 0.1)
*   `tableRiseOffset`: The height the base rises up for the clamp. (default 3.2, fixed)
*   `materialSupportHeight`:  The horizontal length of the raised area at the end of the base. (default 3.2, fixed)

The bottom plate has a rectangular base that is `holeDiameter*3` long and `clampWidth` wide with a `clampDepth` height. A raised section sits along one edge and extends for `materialSupportHeight` length and rises up to height `tableRiseOffset`.  A hole with the defined `holeDiameter` goes through both of these.
The vertical clamping plate is a rectangle with depth `clampDepth`, width `clampWidth` and height `clampHeight-clampDepth`. It is rotated by the `clampAngle`. It sits at the end of the base.
The two supports are triangles with a base length equal to (holeDiameter*3 - clampDepth/2), and their height extends from zero up to (`clampHeight-clampDepth-0.5`), and are extruded with `clampDepth`. One is located at (`0, clampDepth`) and the other at (`0,clampWidth - clampDepth`).

I'd like all dimensions to be easily adjustable using parameters in the code, and I would like to be able to export an STL file of this. I'm not using any external libraries, so everything will need to be defined directly. Could you please generate the necessary OpenSCAD code for this?

[Assistant]
clamp.scad:
```

// height of clamp
clampHeight=10; // [10:0.2:50]

// width of clamp
clampWidth=30; // [20:50]

// depth of clamp
clampDepth=4; // [1.5:0.1:8]

// angle of clamp
clampAngle=8; // [0:0.1:20]

// hole diameter
holeDiameter=7; // [5:0.1:9]

// table offset
tableRiseOffset=3.2;

// material support height
materialSupportHeight=3.2;

/* hidden */
module hiden() {}
holeDiaMultiplier=3;
$fn = 50;

module bottomPlate() {
  difference() {
    union() {
      cube ([holeDiameter*holeDiaMultiplier,clampWidth,clampDepth]);
      translate ([holeDiameter*holeDiaMultiplier, 0, 0]) cube ([materialSupportHeight,clampWidth,tableRiseOffset]);
    }
    translate([holeDiameter+clampDepth/4, clampWidth/2, -0.1]) cylinder (d=holeDiameter,h=clampDepth+0.2);
  }
}

module enforcement() {
  rotate([90,0,0])
  linear_extrude (height=clampDepth)
  polygon (points=[[0,0],[holeDiameter*holeDiaMultiplier-clampDepth/2,0],[holeDiameter*holeDiaMultiplier-clampDepth/2, clampHeight-clampDepth-0.5]]);
}

module verticalPlate() {
  rotate ([0,clampAngle,0]) cube ([clampDepth,clampWidth,clampHeight-clampDepth]);
}

module clamp() {
  union() {
    bottomPlate();
    translate([holeDiameter*holeDiaMultiplier-clampDepth,0,clampDepth]) verticalPlate();
    enfOff=clampWidth-holeDiameter;
    translate([0,clampDepth+enfOff,clampDepth]) enforcement();
    translate([0,clampWidth-enfOff,clampDepth]) enforcement();
  }
}

clamp();

```


[User]
I'm looking to create a customizable T-nut for a T-slot table. I have a pretty good idea of the shape, but I need it to be parametric so I can adjust it for different tables. I have a specific T-slot table in mind, but I want the design to be adaptable to others.

Here's a breakdown of what I need:

*   **Basic Shape:** The T-nut has a main body that fits into the T-slot and a threaded hole to attach things to it. It should also include a hex nut cavity to hold a regular nut securely.
*   **T-Slot Dimensions:** I need parameters for the T-slot dimensions: the top width (A), the height of the thinner part (H1), the total height (H2), and the overall T-slot width (C).
*   **Nut Dimensions:** I'll need a parameter for the length of the T-nut (nutLength). Also, dimensions for the included hex nut like the width of the flat side (nutWidth) and the height (nutHeight).
*   **Hole Diameter:** A parameter for the diameter of the central through-hole for the bolt.
*   **Customizable:** Everything above should be easily adjustable through parameters.

I’d also like the hex nut cavity to be created as a *cut-out*, so the hex cavity is subtracted from the main shape, and not just added on top. I'm essentially making a T-shaped piece of metal with a hole in the middle, and a hex-shaped hole for a nut. The main T shape should be based on the T-slot parameters A, H1, H2, and C.

Can you generate an OpenSCAD file (or files) for this design? I don't need any specific libraries, just the basic OpenSCAD functionality.

[Assistant]
t_nut.scad:
```
// hole diameter
holeDiameter=7;

// dimensions of T-slot in table
A=9.5;
H1=5.5;
H2=7.5;
C=15;

// length of T-nut
nutLength=15;

// dimensions of flat side of included Mx nut
nutWidth=10;

// dimensions (height) of included Mx nut
nutHeight=6;

module tnut() {
  P=(C-A)/2;
  difference() {
    translate([-C/2,nutLength/2,0])
    rotate([90,0,0])
    linear_extrude (height=nutLength)
    polygon(points=[[0,0], [C,0], [C,H2], [C-P,H2], [C-P,H2+H1], [P,H2+H1], [P,H2], [0,H2]]);

    cylinder (h=H1+H2,d=holeDiameter);

    angle = 360/6;
	  cote = nutWidth * (1 / tan (angle));

    translate([0,0,nutHeight/2])
    union() {
      rotate([0,0,0]) cube([nutWidth,cote,nutHeight],center=true);
      rotate([0,0,angle]) cube([nutWidth,cote,nutHeight],center=true);
      rotate([0,0,2*angle]) cube([nutWidth,cote,nutHeight],center=true);
    }
  }
}

tnut();

```


[User]
Hey there, I'm looking to get a battery tray designed, and I'd love if you could help me with the OpenSCAD files.

Essentially, I need a parametric battery tray that can hold various sizes of cylindrical batteries, and also have a few optional features. It should be designed to hold multiple cells in a row.

Here are the specific requirements:

1.  **Battery Types:** I need to be able to specify the battery type, which should then automatically adjust the cell diameter and height. Predefined types should include:
    *   A (Baby)
    *   AA (Mignon)
    *   AAA (Micro)
    *   LR44 (button cell)
    *   Li-Ion 18650
    *   And also a "Custom" option where I can freely specify both the cell diameter and height

2.  **Cell Dimensions:** For "Custom" cell types, I need to be able to set:
    *   Cell diameter
    *   Cell height

3.  **Clearance:** There should be a radial gap between the battery cell and the tray walls. I want to be able to set the gap size.

4.  **Wall Thickness:** I need to define the thickness of the tray walls and the base.

5.  **Number of Cells:** The tray should hold a specified number of cells in a row.

6.  **Cell Distance:** The distance between cells should be adjustable as a percentage of the cell diameter, to allow for extra thick cells.

7.  **Height Correction Factor:** A factor to adjust all the cell heights, which will also scale the tray height accordingly.

8.  **Optional Cutouts:**
    *   Option to have longhole cutouts for each cell, to view the battery labels. These cutouts can either appear on one or both sides of the cell. There should be a way to define the radius and height of this cutout as a percentage of the cell's total height.

9.  **Rubber Band Guides:**
    *   Option to create guides on the sides for a rubber band to hold the batteries in place. I need to be able to set the width of these guides.
    *   I also need to specify the width of the rubber band being used, so that a groove can be made for it (see below).
    *   There should be an option for a groove (cutout) for the rubber band at the top and/or the bottom of the tray
    *  I need to be able to set the depth of these grooves.

10. **Charging Cap:**
    *   There should be an option to create an optional "charge cap," which fits onto one end of the cell, and contains a hole for a charging bolt (M3 screw). The user should be able to set the height of this cap, and the wall thickness, and also the bolt hole diameter.

The design should use a `difference()` to cut out the cells. I think that covers everything - I'm looking forward to seeing what you come up with!

[Assistant]
10-02_battery_tray.scad:
```
//**********************************************
//*    Battery Tray for 4 x AA Cells (Mignon)
//*  Customizable with Thingiverse customizer
//*
//*     Version 2.10.2016 Henning Stöcklein
//*           free for non-commercial use
//*
//* History:
//* 20-DEC-2015: Optional cutout in the middle of each cell to read the battery label
//* 23-DEC-2015: Cell distance factor [%] for extra fat cells
//*                     Optional bottom groove for rubber band
//* 02-OCT-2016: Battery Type selector (d and h joined)
//*                     Custom Cell Type added
//*                     LiIon 18650 and LR44 button cell added
//*                     Height Correction Factor added
//*                     Select Longhole Cutout (none, one side, both sides)
//*                     All numeric parameters customizable with slider controls
//*                     Added charging cap option (not yet in customizer)
//*
//**********************************************

// What to display?
objects = "TRAY" ; // ["TRAY": Battery tray, "CAP": Charging cap]

// Battery Type
cell_type = "Li-18650" ; // ["A": A Baby, "AA": AA Mignon, "AAA": AAA Micro, "LR44": LR44 button cell, "Li-18650": 18650 LiIon, "Custom": Custom - free]

// Battery cell diameter for "Custom" type
cell_d = 14.1 ;   // [8:0.1:30]

// Battery cell height for "Custom" type
cell_h = 50.0 ;   // [5:0.2:80]

// Radial clearance between cell and wall
gap    = 0.6 ; // [0:0.05:1.5]

// Wall and bottom thickness
wall    = 1.3 ; // [1:0.05:2.5]

// Number of battery cells
numcells = 4 ; // [1:8]

// Cell distance in % of diameter
distance = 105 ; // [95:110]

// Height Correction Factor [%]
h_cor = 100 ; // [90:110]

/* [Longhole Cutout Dimensions] */
// Create longhole view window at half height?
cutoffs = -10 ; // [0:Both sides, -10: Only one side, 100:None]

// View Window Cutout Radius
r_window = 3 ; // [0:0.1:5]

// View Window Cutout Height in %
h_window = 30 ; // [10:60]

/* [Rubber band guide Dimensions] */
// Create guide for rubber band ?
rubberguide = 1 ;  // [0: No, 1: Yes]

// Rubber guide width
guide_w  = 2 ; // [1:0.1:3.5]

// Rubber band width
rubber_w = 4.4  ; // [2:0.1:6]

// Create top groove for rubber band on top ?
rubber_topgroove = 1 ;  // [0: No, 1: Yes]

// Create bottom groove for rubber band on top ?
rubber_botgroove = 1 ;  // [0: No, 1: Yes]

// Groove depth
groove_h = 0.8 ; // [0.0:0.1:2.0]

/* [Charge Cap Dimensions] */
// Cap height
capht = 5 ;  // [3:0.2:15]

// Cap wall and bottom thickness
capwall    = 2.8 ; // [1:0.05:4]

// Cap charge bolt hole diameter
capbolt_d  = 3.5 ; // [2:0.1:4]

//********* end of customizable params ***************

// Select d and h according to selected cell type. Leave "custom" dimensions unchanged...
if (objects == "TRAY") {
  if (cell_type == "A")         tray (25.0, h_cor/100 * 50.0) ;
  if (cell_type == "AA")       tray (14.1, h_cor/100 * 50.0) ;
  if (cell_type == "AAA")      tray (10.4, h_cor/100 * 44.6) ;
  if (cell_type == "LR44")      tray (11.7, h_cor/100 * 5.4) ;
  if (cell_type == "Li-18650") tray (18.3, h_cor/100 * 65.0) ;
  if (cell_type == "Custom")  tray (cell_d, h_cor/100 * cell_h) ;
}

if (objects == "CAP") translate ([0,0,-5])
{
  if (cell_type == "A")         chargecap (25.0, capht) ;
  if (cell_type == "AA")       chargecap (14.1, capht) ;
  if (cell_type == "AAA")      chargecap (10.4, capht) ;
  if (cell_type == "LR44")      chargecap (11.7, capht) ;
  if (cell_type == "Li-18650") chargecap (18.3, capht) ;
  if (cell_type == "Custom")  chargecap (cell_d, capht) ;
}

//* Module definition
module tray (cdia, cht)
{
    difference()
    {
        for (i = [0:numcells-1])
            translate ([i*cdia*distance/100,0,0])
                cylinder (r=cdia/2 + gap+wall, h=cht+wall, $fn=40) ;
        for (i = [0:numcells-1])
        {
            translate ([i*cdia*distance/100,0,wall]) cylinder (r=cdia/2 + gap, h=cht+wall, $fn=40) ;

            //* Cutout optional longhole window
            if (h_window != 0) hull()
            {
                translate ([i*cdia*distance/100, cutoffs, cht/2+h_window/200*cht])
                    rotate ([90,0,0]) cylinder (r=r_window, h=2*cdia, center=true, $fn=25) ;
                translate ([i*cdia*distance/100, cutoffs, cht/2-h_window/200*cht])
                    rotate ([90,0,0]) cylinder (r=r_window, h=2*cdia, center=true, $fn=25) ;
            }
            translate ([i*cdia*distance/100,0,wall]) cylinder (r=cdia/2 + gap, h=cht+wall, $fn=40) ;
        }
        translate ([(numcells-1)/2*cdia*distance/100, 0, cht/2+2*wall]) cube ([(numcells-1)*cdia, cdia/2, cht+wall], center=true) ;

        if (rubber_topgroove == 1)
          translate ([-cdia-wall, 0, cht+wall+rubber_w-groove_h])
             rotate ([0,90,0]) cylinder (r=rubber_w, h=(numcells+1)*cdia, $fn=30) ;

       if (rubber_botgroove == 1)
          translate ([-cdia-wall, 0, -rubber_w+groove_h])
             rotate ([0,90,0]) cylinder (r=rubber_w, h=(numcells+1)*cdia, $fn=30) ;
    }

    if (rubberguide == 1)
    {
        translate ([-cdia*0.53-wall, guide_w/2+rubber_w/2, cht/2+wall/2]) cube ([2.5, guide_w, cht+wall], center=true) ;
        translate ([-cdia*0.53-wall, -guide_w/2-rubber_w/2, cht/2+wall/2]) cube ([2.5, guide_w, cht+wall], center=true) ;
        translate ([(numcells-1)*cdia*distance/100+cdia*0.53+wall, guide_w/2+rubber_w/2, cht/2+wall/2]) cube ([2.5, guide_w, cht+wall], center=true) ;
        translate ([(numcells-1)*cdia*distance/100+cdia*0.53+wall, -guide_w/2-rubber_w/2, cht/2+wall/2]) cube ([2.5, guide_w, cht+wall], center=true) ;
    }
} // module

module chargecap (cdia, cht)
{
    difference()
    {
       union() {
          translate ([0,0,1]) cylinder (r=cdia/2 + gap/2 +2*capwall, h=capht+capwall-1, $fn=40) ;
          translate ([0,0,0])
              cylinder (r2=cdia/2+gap/2+2*capwall, r1=cdia/2+gap/2+2*capwall-1, h=1, $fn=40) ;
       }
       translate ([0,0,capwall]) cylinder (r=cdia/2 + gap/2 +capwall, h=capht+0.1, $fn=40) ;

       // M3 thread hole for charge contact
       translate ([0,0,-1]) cylinder (r=capbolt_d/2, 40, $fn=30) ;

       // Slot opening cut
       translate ([0,0,capht/2+capwall]) cube ([50, cdia+wall, capht+0.1], center=true) ;
       translate ([cdia/2+wall+10/2,0,capht/2+capwall]) cube ([10, 50, capht+0.1], center=true) ;
       translate ([-cdia/2-wall-10/2,0,capht/2+capwall]) cube ([10, 50, capht+0.1], center=true) ;
    }
} // module

module battery()
{
    translate ([0,0,wall]) cylinder (r=cdia/2, h=cht, $fn=30) ;
}

// %battery() ;

```


[User]
Hi, I need a parametric design for a small Christmas tree stand. I have a basic idea in mind, but I'd like to make it easily customizable.

The stand should have a central core with a hole for the tree stem to fit into. The core should have a stepped cylindrical shape, with a wider base, a slightly narrower mid-section, and then a narrower hole for the stem itself. It should also have a small spherical detail at the top, above where the stem enters the stand.

Around the core, I want four wing-like supports. These wings should be roughly rectangular, extending out from the core and should be cut or notched on the inner side where they overlap with the central core. I want the wings to be identical, oriented at 90 degree intervals around the core.

The key parameter I need is the inner diameter of the central hole. This is for the stem of the tree. This should be easily changeable. The height of the different cylindrical sections of the core can probably be preset, but should be adjustable as well. Same goes for the width and length of the wings.

Ideally, the design should use `difference()` operations to subtract the stem hole and create the wing cutouts. I'd like the main body to be made of `union`s to put the cylindrical sections together. I think that should be it. Can you help me with this?

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

INNER_DIAMETER = 5;

stand();
module stand()
{
   union()
   {
       wings();
       core();
   }
}
module core()
{
 difference()
 {
  difference()
  {
   union()
   {
   translate([0,0,15])
    cylinder(d=25.4, h=30, center=true, $fn=50);
   translate([0,0,16])
    cylinder(d=20, h=32, center=true, $fn=50);
   }
   translate([0,0,18])
      cylinder(d=INNER_DIAMETER, h=32, center=true, $fn=50);
  }
   translate([0,0,31])
   sphere(d=INNER_DIAMETER+1, center=true, $fn=50);
}
}

module wing()
{
  difference()
  {
   translate([12, -2.5,0])
    cube([50,5,28]);
   translate([60,0,55])
   rotate([90,0,0])
      cylinder(r=50, h=100, center=true, $fn=100);

  }
}

module wings()
{
    union()
    {
        wing();
        rotate([0,0,90]) wing();
        rotate([0,0,-90]) wing();
        rotate([0,0,180]) wing();
    }
}
```


[User]
I'd like to create a stand for some small figures I have.  I'm thinking a rectangular base with rounded corners, and a square hole in it where the figure will stand. I'm going to want to be able to easily adjust the size of the hole to fit different figures, and adjust the overall dimensions of the base as well.

Here's what I have in mind, specifically:

*   **Base Shape:** A rectangular base with rounded corners.  I want to be able to set the overall width, length, and thickness of this base, as well as the roundness of the corners (the radius).
*   **Hole:** A square hole cut into the base.  I want to be able to specify the size of the square, and also its position relative to the edge of the base. It should be positioned along the x-axis.
*   **Hole Bevel:** I'd like to be able to add a bevel to the top edge of the hole, though this should be optional (set to 0 if I don't want it). I'd want to control the depth of the bevel, meaning how far down it extends.

I don't need to use any specific libraries.

Could you generate the OpenSCAD code for this? Thanks!

[Assistant]
stand.scad:
```
$fn = 180 * 1;

// The hole in the base will be a square with this length edges
hole_size = 2.5;

// Width of base
base_size_x = 45;

// Length of base
base_size_y = 20;

// Thickness of base
base_size_z = 2.5;

// Roundness of corners
base_roundness = 5;

// Offset the center of the hole this distance from the edge
hole_pos_x_rel = 13.5;

// Hole bevel depth - 0 to disable beveling
hole_bevel_depth = 0;

module roundedRect(size, radius)
{
    x = size[0];
    y = size[1];
    z = size[2];

    cylinder_z = 0.001;

    minkowski()
    {
        cube([x - radius * 2, y - radius * 2, z - cylinder_z], center = true);

        cylinder(r = radius, h = cylinder_z, center = true);
    }
}

difference()
{
    hole_pos_x_abs = base_size_x / -2 + hole_pos_x_rel;

    roundedRect([base_size_x, base_size_y, base_size_z], base_roundness);

    // Cut out a regular hole
    translate([hole_pos_x_abs, 0, 0])
    cube([hole_size, hole_size, base_size_z + 0.1], center = true);

    // Bevel the hole
    translate([hole_pos_x_abs, 0, base_size_z / 2 - hole_bevel_depth])
    minkowski()
    {
        translate([0, 0, 0.5])
        cube([hole_size, hole_size, 1], center = true);
        cylinder(r1 = 0, r2 = 1, h = 1, $fn = 4);
    }
}

```


[User]
I'm looking to create a first layer print test for my 3D printer, something like a bed leveling test. I'd like it to be parametric, so I can easily adjust the size and the diameter of the circles.

I envision a design with five circles: one in the center, and four others, one in each corner. Then there should be two intersecting rectangles, rotated 45 and -45 degrees, that go through the circles. All of these elements should be 0.3mm tall.

I'd like to be able to adjust the overall size of the test (the distance from corner circle center to corner circle center, for example) and the diameter of the circles.

Could you generate an OpenSCAD file for this? I don't need any fancy libraries, just basic OpenSCAD.

[Assistant]
FivePoint1stLayerPrintTest.scad:
```

/* [Size] */
size = 180; //[1:500]

circle_diameter = 20; //[1:50]

module fivePoint1stLayerPrintTest()
{
    rsize = circle_diameter/2;
    xpos= size/2 - rsize;
    ypos = size/2 - rsize;

    union() {
translate([-xpos,-ypos,0]){
      cylinder(r=rsize, h=0.3, center = true);
}
translate([xpos,-ypos,0]){
      cylinder(r=rsize, h=0.3, center = true);
}
translate([-xpos,ypos,0]){
      cylinder(r=rsize, h=0.3, center = true);
}
translate([xpos,ypos,0]){
      cylinder(r=rsize, h=0.3, center = true);
}
cylinder(r=rsize, h=0.3, center = true);

rotate([0,0,45])
      cube([(xpos+ypos)*1.4, 3, 0.3], center = true);
rotate([0,0,-45])
      cube([(xpos+ypos)*1.4, 3, 0.3], center = true);

    }

}

fivePoint1stLayerPrintTest();
```
PrusaPrintTest001.scad:
```

module PrusaPrintTest001()
{
    xpos= 75;
    ypos = 75;
    rsize = 10;

    union() {
translate([-xpos,-ypos,0]){
      cylinder(r=rsize, h=0.3, center = true);
}
translate([xpos,-ypos,0]){
      cylinder(r=rsize, h=0.3, center = true);
}
translate([-xpos,ypos,0]){
      cylinder(r=rsize, h=0.3, center = true);
}
translate([xpos,ypos,0]){
      cylinder(r=rsize, h=0.3, center = true);
}
cylinder(r=rsize, h=0.3, center = true);

rotate([0,0,45])
      cube([(xpos+ypos)*1.4, 3, 0.3], center = true);
rotate([0,0,-45])
      cube([(xpos+ypos)*1.4, 3, 0.3], center = true);

    }

}

PrusaPrintTest001();
```


[User]
Hey, I'm looking to create a protective shield for a power supply, specifically the kind used for LED lighting. I've got a good idea of what I need, but I need some help generating the OpenSCAD files.

Essentially, it's a box that will enclose the power supply, with some specific cutouts for connectors and mounting. I'd like this to be parametric so I can adjust it for different power supply sizes later.

Here are the key features and parameters I need to control:

*   **Power Supply Dimensions:**
    *   `psWidth`: The width of the power supply.
    *   `psHeight`: The height of the power supply.
    *   `psBoxDepth`: The depth of the shield/box.
*   **Box Construction:**
    *   `thickness`: The thickness of the box walls and lid.
*   **Euro Connector Cutout:**
    *   `euroConnWidth`: The width of the euro connector cutout.
    *   `euroConnHeight`: The height of the euro connector cutout.
    *   `euroConnHolesDistance`: The distance between the euro connector mounting holes.
    *   `euroConnHoleDiameter`: The diameter of the euro connector mounting holes.
    *  `euroConnOffset`: The x offset from the center of the power supply to the euro connector
*   **Output Voltage Hole:**
    *   `outputHoleDiameter`: The diameter of the hole for the output voltage connection.
    *   `outputHoleOffset`: The x offset from the center of the power supply to the output hole.
*   **Mounting Holes:**
    *   `leftMountHoles`: A list of `[x, y]` coordinates for mounting holes on the left side, relative to the right bottom corner of the power supply as viewed from the left side.
    *  `rightMountHoles`: A list of `[x, y]` coordinates for mounting holes on the right side, relative to the left bottom corner of the power supply as viewed from the right side.
    *   `mountHoleDiameter`: The diameter of the mounting holes.

I'd like the design to include a base box and a separate clamp plate that includes all of the mounting holes for each side. The mounting plates should extend out far enough to accommodate all of the mounting holes specified by the x coordinates in `leftMountHoles` and `rightMountHoles`.

I'm not using any libraries so don't worry about including those. Could you generate the necessary OpenSCAD file(s) for this design? Let me know if anything is unclear.

[Assistant]
shield.scad:
```

// psWidth of power supply
psWidth=100;

// height of power supply
psHeight=33;

// depth of shield box
psBoxDepth=45;

// sides thickness
thickness=2.5;

// euro connector width
euroConnWidth=27.5;

// euro connector height
euroConnHeight=20;

// euro connector holes distance
euroConnHolesDistance=39;

// euro connector hole diameter
euroConnHoleDiameter=3.5;

// euro connector offset from center X
euroConnOffset=25;

// diameter of output voltage hole
outputHoleDiameter=16;

// offset of output voltage hole from center X
outputHoleOffset=-30;

// position of left mount hole (list of [x,y]) from right bottom corner as you see from left side of power supply
leftMountHoles=[[25,6.5]];

// position of right mount hole (list of [x,y]) from left bottom corner as you see from right side of power supply
rightMountHoles=[[25,6.5], [25,15.5]];

// diameter of mount hole
mountHoleDiameter=4.8;

module euroConn() {
  union() {
    square ([euroConnWidth, euroConnHeight], center=true);
    translate ([-euroConnHolesDistance/2,0]) circle (d=euroConnHoleDiameter, center=true, $fn=100);
    translate ([euroConnHolesDistance/2,0]) circle (d=euroConnHoleDiameter, center=true, $fn=100);
  }
}

module rect() {
  square ([psWidth,psHeight-2*thickness], center=true);
}

module box() {
  union() {
    translate ([0,0,thickness])
    linear_extrude (height=psBoxDepth)
    difference() {
      offset (r=thickness, $fn=100) rect();
      rect();
    }

    linear_extrude (height=thickness)
    difference() {
      offset (r=thickness, $fn=100) square ([psWidth,psHeight-2*thickness], center=true);
      translate([-euroConnOffset,0]) euroConn();
      translate([-outputHoleOffset,0]) circle (d=outputHoleDiameter, $fn=100);
    }
  }
}

function calcMaxX (v, i, curMax) =
     i == len(v) ?  curMax  : (v[i][0] > curMax ?  calcMaxX (v, i + 1, v[i][0]) : calcMaxX (v, i + 1, curMax));

module clampPlate (coords) {
  maxX = calcMaxX (coords,0, -999999);

  linear_extrude (height=thickness)
  difference() {
    square ([maxX + mountHoleDiameter * 1.5, psHeight-2*thickness]);

    for (c = [0 : len(coords) - 1]) translate ([coords[c][0],coords[c][1]]) circle (d=mountHoleDiameter, $fn=100);
  }
}

union() {
  box();
  translate([-psWidth/2-thickness,(psHeight-2*thickness)/2,psBoxDepth+thickness]) rotate ([180,270,0]) clampPlate (leftMountHoles);

  translate ([psWidth/2, (psHeight-2*thickness)/2, psBoxDepth+thickness])
  rotate ([180,270,0])
  clampPlate (rightMountHoles);
}

```


[User]
I'd like to design a spinning ring, kind of like a fidget spinner but wearable. I'm thinking of a design with an inner ring that fits inside an outer ring, allowing the outer ring to spin freely around the inner. I have a few specific requirements I’m hoping you can help me with.

First, the ring should have a relatively thin profile, not too bulky. I'd like the design to be generally smooth with no exposed ridges that would rub against the fingers next to it, so it can be comfortably worn daily. The inner ring should have a small "bump" or protrusion that acts as a bearing against the outer ring, and the outer ring should have a matching recess. I want to make sure the fit is snug enough to avoid too much play but loose enough for it to spin freely. I'm aiming for a tight fit that still allows smooth spinning after any minor imperfections are worn down during initial use.

Also, I'd like to add a decorative touch to the outer ring. My idea is to include a number of cut-out trees around its circumference, sort of a Christmas theme. I'm open to specifying the number of trees I want.

For sizing, I'd like to be able to specify the ring size using standard US ring sizes, but also be able to input a specific inner diameter in mm for more precise control. The ring should also have some height along its central axis.

Finally, I need some control over a few aspects that depend on my printer's capabilities: like the thinnest printable layer (for determining gaps) and the bearing intrusion (how much the bearing extends). I think that's about it.

Can you generate a parametric OpenSCAD file that covers all of these features, so I can customize these measurements and generate STLs that will print well?

[Assistant]
tree_spin_ring.scad:
```
// Customizable Spinning Ring with Christmas Tree Design
// by pikafoop (www.pikaworx.com)

/* [Basic Options] */

// : U.S. Ring Size (see Advanced Options to specify diameter in mm)
ring_size = 10; //[0:0.25:16]

//
number_of_trees = 5;

//
parts_to_print = 0; // [0:Both, 1:Inner, 2:Outer]

/* [Advanced Options] */

// (mm)
ring_height = 9;

// (mm)
tree_height = 6;

// (mm) : Override ring size and specify inner diameter; 0 means use ring size
ring_diameter = 0;

// (mm) : How thin can we print a layer on your printer?
thinnest_layer = 0.8;

// (mm) : Height of the "bump" on the inner ring
bearing_intrusion = 0.6;

// (mm) : Average distance between inner and outer
bearing_gap = 0.4;

/* [Hidden] */

// : How many facets should our rings have?
resolution = 180; // [30:30:180]

// if we don't override the ring size, calculate using https://en.wikipedia.org/wiki/Ring_size#Equations
inner_diameter = ring_diameter ? ring_diameter : 11.63 + 0.8128*ring_size;
echo(inner_diameter=inner_diameter);

ring_thick = thinnest_layer*2 + bearing_gap + bearing_intrusion;
echo(ring_thick=ring_thick);

inner_thin = thinnest_layer;
inner_thick = thinnest_layer+bearing_intrusion;
inner_diff = bearing_intrusion;
inner_ring_poly_points = [
    [0,0], [inner_thin,0], [inner_thick,inner_diff], // increase
    [inner_thick, inner_diff*2], //bend
    [inner_thin, inner_diff*3],
    [inner_thick, ring_height / 2],
    [inner_thin, ring_height-inner_diff*3],
    [inner_thick, ring_height-inner_diff*2],
    [inner_thick,ring_height-inner_diff], // end bend
    [inner_thin,ring_height], [0, ring_height], [0,0] // decrease & return
];

echo(inner_thick=inner_thick);

outer_displacement = inner_thin + bearing_gap;
outer_thick = ring_thick - outer_displacement;
outer_thin = max(outer_thick - bearing_intrusion, 1.0);
outer_diff = bearing_intrusion;
outer_ring_poly_points = [
    [0,0], [outer_thin,0], [outer_thick,outer_diff], // outer increase
    [outer_thick,ring_height-outer_diff], // outer bump
    [outer_thin, ring_height], [0, ring_height], // outer decrease

    [outer_diff, ring_height-outer_diff], // inner decrease
    [outer_diff, ring_height-outer_diff*2],
    [0, ring_height-outer_diff*3], //bend
    [outer_diff, ring_height / 2],
    [0, outer_diff*3],
    [outer_diff, outer_diff*2],
    [outer_diff, outer_diff], [0, 0] // inner increase and return
];

echo(outer_displacement=outer_displacement);

tree_poly_points = [
    [0,0], [2,2], [1,2], [3,4], [2,4], [4,6],
    [6,4], [5,4], [7,2], [6,2], [8,0], [0,0]
];

if (parts_to_print == 1 || parts_to_print == 0) {
    translate([-inner_diameter/2-ring_thick,0,0]) inner_ring();
}

if (parts_to_print == 2 || parts_to_print == 0) {
    translate([inner_diameter/2+ring_thick,0,0]) outer_ring();
}

module inner_ring() {
    rotate_extrude($fn=resolution)
        translate([inner_diameter/2,0,0])
        polygon(inner_ring_poly_points);
}

module outer_ring() {
    difference() {
        rotate_extrude($fn=resolution)
            translate( [inner_diameter/2+outer_displacement, 0, 0] )
            polygon(outer_ring_poly_points);
        if (number_of_trees > 0) trees();
    }
}

module tree_cut() {
    rotate([90,0,0])
        linear_extrude(height=inner_diameter, center=false)
        translate([-4,(ring_height-tree_height)/2,0])
        resize([0,tree_height,0], auto=true)
        polygon(tree_poly_points);
}

module trees() {
    for (x=[1:number_of_trees]) {
        rotate([0, 0, 360*x/number_of_trees]) tree_cut();
    }
}

```


[User]
I'd like a parametric OpenSCAD design for a spinning ring. I've seen a couple of similar designs online, but I want to make sure I can fully customize it.

Here's what I'm looking for:

**Basic Functionality:**

The ring should consist of two parts: an inner ring and an outer ring. The inner ring should be able to rotate freely within the outer ring.

**Parameters:**

*   **`ring_size`**: This should be a parameter that corresponds to US ring sizes (e.g., 8, 10, 12). The ring size should determine the *inner diameter* of the inner ring. I need to be able to specify the size using either US ring sizes or by specifying the inner diameter in millimeters as described below.
*   **`ring_diameter`**: This parameter would override the `ring_size` parameter. If this is set to a value other than 0, this should be used for the *inner diameter* of the inner ring (in millimeters) instead of calculating it from the `ring_size`.
*   **`ring_height`**: This determines the height (or axial thickness) of the ring, in millimeters.
*   **`thinnest_layer`**: This is the thinnest layer that can be reliably printed, in millimeters.
*   **`bearing_intrusion`**: This is the height of the 'bump' on the inner ring, in millimeters, that fits into the outer ring.
*  **`bearing_gap`**: This is the average distance between the inner and outer ring when they're assembled, in millimeters.
*   **`resolution`**: This would determine the number of facets that the ring has, which will allow us to smooth the cylindrical shape of the rings.

**Other design considerations:**

*   The inner ring should have a bump that protrudes slightly outwards and into the outer ring.
*   The outer ring should have a corresponding groove to allow the inner ring to spin smoothly.
*   The cross-section of the rings should not just be a simple rectangle but should have some detail, specifically using the specified `inner_ring_poly_points` and `outer_ring_poly_points` in my example. I want the design to have the same basic shape as the one described in my sample file.
*   I need a parameter that lets me specify which parts to print. There should be an option to print only the inner ring, only the outer ring, or both.
*   I don't need to be able to specify the file format, an STL file is fine.

**Important:**

I'd prefer the design to be easily configurable and adaptable, I need the ability to change things like the gap, thickness, bump height etc. I want to ensure that there is enough space for the rings to turn freely and do not stick against each other.

Could you generate the SCAD code that can accomplish this? I'd prefer to not use a library if possible.

[Assistant]
spin_ring.scad:
```
// Customizable Spinning Ring
// by pikafoop (www.pikaworx.com)

/* [Basic Options] */

// : U.S. Ring Size (see Advanced Options to specify diameter in mm)
ring_size = 10; //[0:0.25:16]

//
parts_to_print = 0; // [0:Both, 1:Inner, 2:Outer]

/* [Advanced Options] */

// (mm)
ring_height = 8;

// (mm) : Override ring size and specify inner diameter; 0 means use ring size
ring_diameter = 0;

// (mm) : How thin can we print a layer on your printer?
thinnest_layer = 0.8;

// (mm) : Height of the "bump" on the inner ring
bearing_intrusion = 0.6;

// (mm) : Average distance between inner and outer
bearing_gap = 0.4;

/* [Hidden] */

// : How many facets should our rings have?
resolution = 180; // [30:30:180]

// if we don't override the ring size, calculate using https://en.wikipedia.org/wiki/Ring_size#Equations
inner_diameter = ring_diameter ? ring_diameter : 11.63 + 0.8128*ring_size;
echo(inner_diameter=inner_diameter);

ring_thick = thinnest_layer*2 + bearing_gap + bearing_intrusion;
echo(ring_thick=ring_thick);

inner_thin = thinnest_layer;
inner_thick = thinnest_layer+bearing_intrusion;
inner_diff = bearing_intrusion;
inner_ring_poly_points = [
    [0,0], [inner_thin,0], [inner_thick,inner_diff], // increase
    [inner_thick, inner_diff*2], //bend
    [inner_thin, inner_diff*3],
    [inner_thick, ring_height / 2],
    [inner_thin, ring_height-inner_diff*3],
    [inner_thick, ring_height-inner_diff*2],
    [inner_thick,ring_height-inner_diff], // end bend
    [inner_thin,ring_height], [0, ring_height], [0,0] // decrease & return
];

echo(inner_thick=inner_thick);

outer_displacement = inner_thin + bearing_gap;
outer_thick = ring_thick - outer_displacement;
outer_thin = max(outer_thick - bearing_intrusion, 1.0);
outer_diff = bearing_intrusion;
outer_ring_poly_points = [
    [0,0], [outer_thin,0], [outer_thick,outer_diff], // outer increase
    [outer_thick,ring_height-outer_diff], // outer bump
    [outer_thin, ring_height], [0, ring_height], // outer decrease

    [outer_diff, ring_height-outer_diff], // inner decrease
    [outer_diff, ring_height-outer_diff*2],
    [0, ring_height-outer_diff*3], //bend
    [outer_diff, ring_height / 2],
    [0, outer_diff*3],
    [outer_diff, outer_diff*2],
    [outer_diff, outer_diff], [0, 0] // inner increase and return
];

echo(outer_displacement=outer_displacement);

if (parts_to_print == 1 || parts_to_print == 0) {
    translate([-inner_diameter/2-ring_thick,0,0]) inner_ring();
}

if (parts_to_print == 2 || parts_to_print == 0) {
    translate([inner_diameter/2+ring_thick,0,0]) outer_ring();
}

module inner_ring() {
    rotate_extrude($fn=resolution)
        translate([inner_diameter/2,0,0])
        polygon(inner_ring_poly_points);
}

module outer_ring() {
    rotate_extrude($fn=resolution)
        translate( [inner_diameter/2+outer_displacement, 0, 0] )
        polygon(outer_ring_poly_points);
}
```


[User]
Hey, I'm looking to design a parametric stake, like for securing a tent or something. I've got some rough ideas, but I need help turning it into a proper OpenSCAD model.

The basic idea is this: I want a stake with a tapered point at the bottom and a main body that's cylindrical-ish, but with some twists. I need to be able to control a bunch of things with parameters:

*   **pointHeight:** The length of the tapered section at the bottom.
*   **stakeHeight:** The overall length of the main body of the stake.
*   **stakeRadius:** The radius of the main body.
*   **radiusScale:** A ratio that determines how far in an inner profile is drawn to create a kind of "ribbed" effect. So a value of 1 would just make one shape, and .5 would mean that the inner profile was half the radius.
*  **upperTwist:** The amount of twist in the main body of the stake.
*   **numberOfSides:**  The number of sides for the overall shape.

So here's how it should work:
The stake should have an outer profile and an inner profile, kind of like a hypotrochoid shape - a circle rolling around the outside of the main radius, and another inner circle rolling around a smaller radius. I think using the `linear_extrude` function to twist them will work for creating the body, and the tapered point should use the same profile but scaled down to a point, and twisted less than the main body. And I'd also like a hole drilled near the top for attaching a rope or something, and the hole should be centered on the stake and also be parametric.

I'm not very familiar with doing this using `linear_extrude`, but I understand that I need to create 2D shapes and then extrude them. Do you know what I mean with all this, and is this something you can help with? I'm looking for a single, parametric OpenSCAD file for this.

[Assistant]
basicStake.scad:
```

//---[ USER Customizable Parameters ]-----------------------------------------

//: Length of tapered section
pointHeight = 40;//[0:100]
//: Length of stake body
stakeHeight = 150;//[0:300]
//: Radius of stake
stakeRadius = 15;//[0:40]
//: Ratio of inner profile to outer profile
radiusScale = .7;//[0:.05:1]
//: Twist in the upper portion of the stake
upperTwist = 250;//[0:10000]
//: Number of sides
numberOfSides = 4;//[3:10]

smallRadius = stakeRadius * radiusScale;
r=stakeRadius/numberOfSides;
smallR=smallRadius/numberOfSides;
rotationAngle = 360/numberOfSides/2;
lowerTwist=(upperTwist*pointHeight)/stakeHeight;

module hypotrochoid(R, r, d, n=50, rev=1) {
    function x(R,r,a) = (R-r) * cos(a) + d*cos((R-r)/r*a);
    function y(R,r,a) = (R-r) * sin(a) - d*sin((R-r) / r*a);
    dth=rev*360/n;

    for(i = [0:n-1] ) {
        polygon (
            [
                [0,0],
                [x(R,r,dth*(i)), y(R,r,dth*(i))],
                [x(R,r,dth*(i+1)), y(R,r,dth*(i+1))]
            ]
        );
    }
}

difference() {
    union() {
        union() {
            linear_extrude(height=stakeHeight,twist=upperTwist,slices=100)
            hypotrochoid(stakeRadius,r,r,rev=3);
            linear_extrude(height=stakeHeight,twist=upperTwist,slices=100)
            rotate([0,0,rotationAngle]) hypotrochoid(smallRadius,smallR,smallR,rev=3);
        }

        rotate([180,0,0]){

            union() {
                linear_extrude(height=pointHeight,twist=lowerTwist,slices=50,scale=0)
                    hypotrochoid(stakeRadius,r,r,rev=3);
                linear_extrude(height=pointHeight,twist=lowerTwist,slices=50,scale=0)
                    rotate([0,0,rotationAngle]) hypotrochoid(smallRadius,smallR,smallR,rev=3);
            }
        }
    }
    translate([0,0,stakeHeight-12]){
        rotate([90,0,0]) {
            cylinder(r=3.7, h=50,center=true);
        }
    }
}
```


[User]
Okay, I need a custom key designed in OpenSCAD. I've lost the original, and it's a bit of an odd shape. The key has a bow, a shank, and a tri-sided inner hole for engaging with the lock.

Here are the dimensions and overall structure:

*   **Key Bow:** This part is essentially a rectangular block with a hole.
    *   The block is 40mm long, 12mm thick (same as the shank's outer diameter), and 10mm high.
    *   It has a cylindrical hole that is 5mm in diameter. It needs to be centered on the bow's width, and start around 5mm from the end, running entirely through the block.
*   **Shank:**  This is the cylindrical part that goes into the lock.
    *   The shank has an outer diameter of 12mm and a height of 20mm
    *   It has a tri-sided inner hole that is 11mm in diameter. This should have 3 sides and a depth of 8mm. It's centered in the cylinder, and starts from the top.

I'd like this to be fully parametric, so I can easily change the dimensions and number of sides of the inner hole.

Here are the initial variables I want to use:

*   `outer_diameter = 12;`
*   `inner_diameter = 11;`
*   `height_of_shank = 20;`
*   `number_of_center_sides = 3;`
*   `depth_of_center_hole = 8;`

Please make sure the final design is a union of the bow and the shank.

Could you generate a single SCAD file for this? It would be great to use the BOSL2 library for any operations it provides that might simplify the code.

[Assistant]
key-v1.scad:
```
/*
 * Special key generator
 * All units are in milimeters
 *
 * author R. A. - 2015/12/08
 * e-mail: thingiverse@dexter.sk
 * Thingiverse username: dexterko
 *
 * Feel free to modify and distribute, but please keep the credits;-)
 */

outer_diameter=12;
inner_diameter=11;
height_of_shank=20;
number_of_center_sides=3;
depth_of_center_hole=8;

union() {
    // key bow
    difference() {
        translate([-20, 0-(outer_diameter/2), 0])
        cube([40,outer_diameter,10]);

        //a hole in the bow
        rotate([0, 90, 90])
        translate([-5,15,-20])
        cylinder(r=2.5, h=40);
    }

    // Shank
    difference() {
        translate([0, 0, 10])
        cylinder(d=outer_diameter, h=height_of_shank, $fn=100);

        translate([0,0, 10+height_of_shank-depth_of_center_hole])
        cylinder(d=inner_diameter, h=depth_of_center_hole+1, $fn=number_of_center_sides);

    }

}

```


[User]
I'm looking to design a pair of dice for practicing French verb conjugations. The first die will have six different verbs, one on each face, and the second die will have the six grammatical persons, again one on each face.

For the verb die, I need it to be roughly a 40mm cube with slightly rounded edges. I'd like to use the following verbs: "faire", "être", "vouloir", "pouvoir", "avoir", and "aller", and have them extruded on the respective faces. I envision the words being centered on each face and a font size that's appropriate to the die, maybe around 8 points, but I'd want that to be easily adjustable. The fonts themselves can be a simple sans-serif, something like Liberation Sans would be good.

The second die will have the grammatical persons: "je", "tu", "il/elle", "nous", "vous", and "ils/elles". It will be the same size and shape as the verb die and will also have centered, extruded text, and adjustable font size.

It would also be fantastic if I could adjust the base cube size (40mm is good as a default) and the text extrusion depth, plus maybe some fine tuning on the edge rounding, using some easily accessible parameters.

I'm also assuming that I will need to be using the `text()` command, and `linear_extrude()` to make the letters 3D. I can probably handle this myself, but if you have some suggestions for how to easily center the text without having to mess around with calculating positions, that would also be great.

I am also wondering if there's a more efficient way to make the rounded cube? It seems like intersection and spheres are not the most efficient method.

[Assistant]
Dice.scad:
```
dice_size=40;
font_size=8;//[6:Small,[8:Medium],[10:Large]

/* [Texts] */
text_front="faire";
text_back="être";
text_left="vouloir";
text_right="pouvoir";
text_top="avoir";
text_bottom="aller";

difference(){
intersection(){
cube(dice_size,center=true);
sphere(r=dice_size/2*1.4,$fa=0.5);
}
for (side=[[[0,0,0],text_top],[[0,180,0],text_bottom],[[90,-90,0],text_front],[[-90,-90,0],text_back],[[90,0,90],text_left],[[90,0,-90],text_right]]){
    rotate(side[0]){
translate([0,0,dice_size/2.1]){
//minkowski(){
    linear_extrude(height = dice_size/20, slices=2){
//        offset(r=-0.17){
            text(side[1], size=dice_size/40*font_size, font = "Liberation Sans", halign="center", valign="center", $fn=30);
        }
//    }
//    rotate([180,0,0]);{
//    cylinder(0.2,0.2,00,$fn=6);
//    }
//    }
}
}
}
}

```


[User]
I need a design for a customizable container, something like a box, that I can 3D print. I'd like to be able to adjust the inner dimensions (length, width, and height) to fit different items. Also, it would be great if I could add a customizable label on the side that I can change the text and size of, and that is also adjustable to the container's size. The label should be embossed so it's raised above the container's surface. I'd like the label to be along the long side of the box, if that is possible. I'd also prefer a "box" container to a "cylinder" container if that is feasible.

Could you generate a parametric OpenSCAD file for this? I'd like to be able to adjust the inner dimensions, the label text, and the label size through variables.

[Assistant]
labeled_container.scad:
```
// Pass box for a hall passes
// by Kevin McCormack

// The length of the inside of the box in mm
inside_length = 240;
// The width of the inside of the box in mm
inside_width = 40;
// Height of the box in mm
height = 80;
outside_length = inside_length + 6;
outside_width = inside_width + 6;

// The text for the first line of the label
label_text = "Your Label Here";
// The size of the label text scaling
label_size = 1.8;

module boxBase() {
    difference() {
        translate([0,0,height/2]) cube([outside_length,outside_width,height],center=true);
        translate([0,0,(height/2)+4]) cube([inside_length,inside_width,height],center=true);

    }
}

module label(the_text) {
    translate([0,-(outside_width/2)+1,height/2]) rotate([90,0,0]) scale([label_size,label_size,1]) linear_extrude(height=2) text(the_text, halign="center", valign="center");
}

difference() {
    boxBase();
    label(label_text);
}
```


[User]
I'd like to design a customizable container, kind of like a pass box, with some specific features and parameters.

Here's what I'm envisioning:

*   **Basic Box Shape:** I need a rectangular box with a customizable inner length, inner width, and height. The walls should have a consistent thickness, so there's an outer length and width that are slightly bigger than the inner ones.

*   **Label:** I want to be able to engrave a label on the side of the box. The text of the label and the size should be adjustable. The label should be extruded into the box a small amount.

*   **Cutouts:** This is the tricky part. I want to have a pattern of circular cutouts on the sides, the back, and the front of the box. The bottom should be solid.
    *   **Back:** The back cutouts should form rows and columns. The location and spacing of each circle should be configurable.
    *   **Front:** The front cutouts will be in two rows, one near the top, and one near the bottom of the front face. The cutouts should have the same spacing as the back and be in line with the back cutouts.
    *   **Sides:** The side cutouts should form rows and columns like the back, and follow the height spacing of the front and back cutouts.

*   **Parameters:** I need to be able to control the following parameters:
    *   `inside_length` (mm)
    *   `inside_width` (mm)
    *   `height` (mm)
    *   `wall_thickness` (mm) - should control the difference between inner and outer dimensions
    *   `label_text` (string)
    *   `label_size` (scaling factor)
    *    `cutout_diameter` (mm) - The diameter of the circular cutouts
    *   `cutout_spacing` (mm) - distance between each cut out in the X, Y, and Z directions.
    *   `front_cutout_offset` (mm) - offset of the front cutouts from the edge.

The design should be in OpenSCAD, and it should be completely parametric using the parameters I've listed. I'd prefer to have the label text centered on the sides of the box. I don't want to use any external libraries if possible, but if you have to, use MCAD library.

Could you generate the SCAD file for me?

[Assistant]
labeled_container_2.scad:
```
// Pass box for a hall passes
// by Kevin McCormack

// The length of the inside of the box in mm
inside_length = 240;
// The width of the inside of the box in mm
inside_width = 40;
// Height of the box in mm
height = 80;
outside_length = inside_length + 6;
outside_width = inside_width + 6;

// The text for the first line of the label
label_text = "Your Label Here";
// The size of the label text scaling
label_size = 1.8;

module boxBase() {
    difference() {
        translate([0,0,height/2]) cube([outside_length,outside_width,height],center=true);
        translate([0,0,(height/2)+4]) cube([inside_length,inside_width,height],center=true);

    }
}

module label(the_text) {
    translate([0,-(outside_width/2)+1,height/2]) rotate([90,0,0]) scale([label_size,label_size,1]) linear_extrude(height=2) text(the_text, halign="center", valign="center");
}

module backCuttout() {
    for (z=[10:10:height-10]) {
        for (x=[0:10:inside_length-10]) {
            translate([x-(inside_length/2)+5,10,z]) rotate([90,0,0]) cylinder(h=outside_width+5,d=6,center=true);
        }
    }
}

module frontCuttout() {
    // Bottom row
    for (x=[0:10:inside_length-10]) {
        translate([x-(inside_length/2)+5,-10,10]) rotate([90,0,0]) cylinder(h=outside_width+5,d=6,center=true);
    }
    // Top row
    for (x=[0:10:inside_length-10]) {
        translate([x-(inside_length/2)+5,-10,height-10]) rotate([90,0,0]) cylinder(h=outside_width+5,d=6,center=true);
    }
}

module sideCuttout() {
    for (z=[10:10:height-10]) {
        for (y=[0:10:inside_width-10]) {
            translate([0,y-(inside_width/2)+5,z]) rotate([0,90,0]) cylinder(h=outside_length+5,d=6,center=true);
        }
    }
}

difference() {
    boxBase();
    label(label_text);
    backCuttout();
    frontCuttout();
    sideCuttout();
}
```


[User]
I'm looking to create a customizable, box-like container with a "crate" style, meaning it has lots of holes cut into it. The box should have a label on one of the sides. I'd like to be able to specify the inside dimensions (length, width, height), as well as the text and size of the label.

The container itself should have a solid base and four side walls, with all walls of consistent thickness. On the back, I want to have a series of cylindrical cutouts that go all the way through, arranged in a grid-like pattern. The bottom needs similar cylindrical cutouts, arranged in a grid across the whole bottom surface. The front should also have cutouts, in two rows (one row near the top and one row near the bottom) going all the way through, again arranged in a grid. Finally, each of the two side walls should have a grid of cylindrical cutouts going all the way through. The cutouts should all be cylinders, and the size of each cutout cylinder needs to be customizable. I also want to specify the spacing between the centers of each cutout. Also, the text label should be centered vertically on its wall but centered horizontally, meaning that it does not extend off the sides.

Ideally, the OpenSCAD file should use parameters for:

*   `inside_length`: The inside length of the box (mm).
*   `inside_width`: The inside width of the box (mm).
*   `height`: The height of the box (mm).
*   `wall_thickness`: The thickness of the walls of the box (mm).
*   `label_text`: The text to display on the label.
*  `label_size`: A scaling factor for the label text size.
*   `cutout_diameter`: The diameter of the cylindrical cutouts (mm).
*   `cutout_spacing`: The spacing between the centers of the cylindrical cutouts (mm).

I think using the `text` function in OpenSCAD will be sufficient for the label and I don't have any particular needs for extra libraries like MCAD, BOSL, BOSL2, dotSCAD, NopSCADlib, or BOLTS. Can you generate the OpenSCAD file for this?

[Assistant]
labeled_container_2-1.scad:
```
// Pass box for a hall passes
// by Kevin McCormack

// The length of the inside of the box in mm
inside_length = 240;
// The width of the inside of the box in mm
inside_width = 40;
// Height of the box in mm
height = 80;
outside_length = inside_length + 6;
outside_width = inside_width + 6;

// The text for the first line of the label
label_text = "Your Label Here";
// The size of the label text scaling
label_size = 1.8;

module boxBase() {
    difference() {
        translate([0,0,height/2]) cube([outside_length,outside_width,height],center=true);
        translate([0,0,(height/2)+4]) cube([inside_length,inside_width,height],center=true);

    }
}

module label(the_text) {
    translate([0,-(outside_width/2)+1,height/2]) rotate([90,0,0]) scale([label_size,label_size,1]) linear_extrude(height=2) text(the_text, halign="center", valign="center");
}

module backCuttout() {
    for (z=[10:10:height-10]) {
        for (x=[0:10:inside_length-10]) {
            translate([x-(inside_length/2)+5,10,z]) rotate([90,0,0]) cylinder(h=outside_width+5,d=6,center=true);
        }
    }
}

module bottomCuttout() {
    for (y=[10:10:inside_width-10]) {
        for (x=[0:10:inside_length-10]) {
            translate([x-(inside_length/2)+5,y-(inside_width/2),0]) cylinder(h=10,d=6,center=true);
        }
    }
}

module frontCuttout() {
    // Bottom row
    for (x=[0:10:inside_length-10]) {
        translate([x-(inside_length/2)+5,-10,10]) rotate([90,0,0]) cylinder(h=outside_width+5,d=6,center=true);
    }
    // Top row
    for (x=[0:10:inside_length-10]) {
        translate([x-(inside_length/2)+5,-10,height-10]) rotate([90,0,0]) cylinder(h=outside_width+5,d=6,center=true);
    }
}

module sideCuttout() {
    for (z=[10:10:height-10]) {
        for (y=[0:10:inside_width-10]) {
            translate([0,y-(inside_width/2)+5,z]) rotate([0,90,0]) cylinder(h=outside_length+5,d=6,center=true);
        }
    }
}

difference() {
    boxBase();
    label(label_text);
    backCuttout();
    bottomCuttout();
    frontCuttout();
    sideCuttout();
}
```


[User]
I need an OpenSCAD design for creating two-part molds. I've got a general idea of how I want it to work, and I'd like it to be parametric so I can use it for different masters. The mold should have a bottom and a top piece. The top should include the sprue and riser, which the bottom piece will have indentations for.

Here's a breakdown of the features and parameters I'd like:

**Master Object:**

*   I need to be able to load the master object via points and faces, similar to the `polyhedron()` function. I'll be getting these from a tool that converts STL files to points and faces.
*   I need to be able to control the rotation (X, Y, and Z) and translation (X, Y, and Z) of the master object, for easy positioning.

**Sprue & Riser:**

*   The sprue (input for casting material) needs to be a cylinder, and I need to set the diameter and position (X, Y, and Z).
*   There should be an optional "runner" that extends horizontally from the sprue. This would need a parameter for length and the angle it extends at.
*   The riser (exit for air) also needs to be a cylinder, with parameters for diameter and position (X, Y, and Z).

**Mold Box:**

*   The mold itself should be a box, and I need to control the X, Y, and Z dimensions. I would prefer rounded corners, for more realistic molds.
*   The mold should be split into a top and a bottom section, with each having locating features to ensure proper alignment. The bottom piece should have indentations in the location where the sprue and riser will be on the top piece.

**Display and Usage:**

*   I need options to show/hide certain elements, like the master, the sprue/riser, the axis of the mold box, and the two mold pieces.
*   I want to be able to set the resolution of the renders, basically just the `$fn` variable.

So, essentially, I want a parametric mold-making tool where I can load in a master object, add sprue and riser features, and then create a mold box with a top and bottom section. I'd like to have options to adjust the position of each of these pieces as well as their overall size and other dimensional parameters. Could you create that? I don't need you to include any additional libraries, I want all the code to be in one file if possible.

[Assistant]
MouldMaker.scad:
```
// preview[view:north east, tilt:top diagonal]

/* [Show/Hide] */
//Useful for positioning the master
show_axis="Yes"; //[Yes, No]
//The object you are creating a mould for
show_master="No"; //[Yes, No]
//Entry and exit for the casting material
show_sprue_and_riser="No"; //[Yes, No]
//Optional horizontal extension from sprue
include_runner="No"; //[Yes, No]
show_mould_top="Yes"; //[Yes, No]
show_mould_bottom="Yes"; //[Yes, No]
//Set low for quicker editing and high for final render
resolution=36; //[36, 360]

/* [Master Adjustments] */
//Use goo.gl/Aoiphw to convert your master STL in to an OpenSCAD polyhedron and paste the list of points and faces/triangles here
master_points="[]";
master_faces="[]";
master_x_rotation=0; //[-180:180]
master_y_rotation=0; //[-180:180]
master_z_rotation=0; //[-180:180]
master_x_translation=0; //[-100:100]
master_y_translation=0; //[-100:100]
master_z_translation=0; //[-100:100]

/* [Sprue, Runner, and Riser Adjustments] */
sprue_diameter=5; //[5:20]
sprue_x_translation=0; //[-100:100]
sprue_y_translation=-20; //[-100:100]
sprue_z_translation=0; //[-100:100]
runner_angle=0; //[0:360]
runner_length=25; //[1:50]
riser_diameter=5; //[5:20]
riser_x_translation=0; //[-100:100]
riser_y_translation=20; //[-100:100]
riser_z_translation=0; //[-100:100]

/* [Mould Size Adjustments] */
mould_x_dimention=80; //[1:200]
mould_y_dimention=110; //[1:200]
mould_z_dimention=50; //[1:200]

/* [Hidden] */
$fn=resolution;
delta=0.01;

module rounded_edges(){
    radius = 10;
    difference(){
        cube([mould_x_dimention+delta,mould_y_dimention+delta,mould_z_dimention+delta], center=true);

        minkowski(){
            cube([mould_x_dimention-2*radius+delta,mould_y_dimention-2*radius+delta,mould_z_dimention-2*radius+delta], center=true);

            sphere(r=radius);
        }
    }
}

//rounded_edges();

module axis(){
    rotate([0,90,0])
    cylinder(d=1, h=0.5*mould_x_dimention+10);

    rotate([-90,0,0])
    cylinder(d=1, h=1.5*mould_y_dimention+20);

    cylinder(d=1, h=mould_z_dimention);

    translate([0.5*mould_x_dimention+20,0,0])
    //rotate([0,0,180])
    linear_extrude(height=1)
    scale(5)
    //polygon(points=[[-1,0],[-2,1],[-2,2],[-1,2],[0,1],[1,2],[2,2],[2,1],[1,0],[2,-1],[2,-2],[1,-2],[0,-1],[-1,-2],[-2,-2],[-2,-1]]);
    text("X", size=5, font="Russo One", valign="center", halign="center");

    translate([0,1.5*mould_y_dimention+30,0])
    rotate([0,0,90])
    linear_extrude(height=1)
    scale(5)
    //polygon(points=[[-1,0],[-2,1],[-2,2],[-1,2],[0,1],[1,2],[2,2],[2,1],[1,0],[1,-2],[0,-2],[-1,-2]]);
    text("Y", size=5, font="Russo One", valign="center", halign="center");

    translate([0,0,mould_z_dimention+10])
    rotate([0,0,135])
    rotate([90,0,0])
    linear_extrude(height=1)
    scale(5)
    //polygon(points=[[-2,1],[-2,2],[2,2],[2,1],[0,-1],[2,-1],[2,-2],[1,-2],[-1,-2],[-2,-2],[-2,-1],[0,1]]);
    text("Z", size=5, font="Russo One", valign="center", halign="center");
}

module master(){
    translate([master_x_translation,master_y_translation,master_z_translation])
    rotate([0,0,master_z_rotation])
    rotate([0,master_y_rotation,0])
    rotate([master_x_rotation,0,0])
    if (master_points == "[]")
        resize(newsize=[70,100,40])
        sphere(1);
    else
        polyhedron(points=master_points, faces=master_faces);
}

module sprue(){
    translate([sprue_x_translation,sprue_y_translation,sprue_z_translation]){
        cylinder(d1=sprue_diameter, d2=1.5*sprue_diameter,h=mould_z_dimention/2 + 1);

        if (include_runner == "Yes"){
            sphere(d=sprue_diameter);

            rotate([0,0,runner_angle])
            rotate([-90,0,0])
            cylinder(d=sprue_diameter, h=runner_length);
        }
    }
}

module riser(){
    translate([riser_x_translation,riser_y_translation,riser_z_translation])
    cylinder(d=riser_diameter, h=mould_z_dimention/2 + 1);
}

module mould_bottom(){
    difference(){
        union(){
            translate([0,0,-mould_z_dimention/4])
            cube([mould_x_dimention,mould_y_dimention,mould_z_dimention/2], center=true);

            translate([10-mould_x_dimention/2,10-mould_y_dimention/2,0])
            resize(newsize=[10,10,mould_z_dimention/2]) sphere(1);

            translate([-10+mould_x_dimention/2,10-mould_y_dimention/2,0])
            resize(newsize=[10,10,mould_z_dimention/2]) sphere(1);
        }
        union(){
            master();

            translate([10-mould_x_dimention/2,-10+mould_y_dimention/2,0])
            resize(newsize=[10,10,mould_z_dimention/2])
            sphere(1);

            translate([-10+mould_x_dimention/2,-10+mould_y_dimention/2,0])
            resize(newsize=[10,10,mould_z_dimention/2])
            sphere(1);

            rounded_edges();
        }
    }
}

module mould_top(){
    difference(){
        union(){
            translate([0,0,mould_z_dimention/4])
            cube([mould_x_dimention,mould_y_dimention,mould_z_dimention/2], center=true);

            translate([10-mould_x_dimention/2,-10+mould_y_dimention/2,0])
            resize(newsize=[10,10,mould_z_dimention/2])
            sphere(1);

            translate([-10+mould_x_dimention/2,-10+mould_y_dimention/2,0])
            resize(newsize=[10,10,mould_z_dimention/2])
            sphere(1);
        }
        union(){
            master();

            sprue();

            riser();

            translate([10-mould_x_dimention/2,10-mould_y_dimention/2,0])
            resize(newsize=[10,10,mould_z_dimention/2])
            sphere(1);

            translate([-10+mould_x_dimention/2,10-mould_y_dimention/2,0])
            resize(newsize=[10,10,mould_z_dimention/2])
            sphere(1);

            rounded_edges();
        }
    }
}

module show_what(){
    if (show_axis == "Yes")
        color("black")
        axis();
    if (show_master == "Yes")
        color("grey")
        master();
    if (show_sprue_and_riser == "Yes"){
        color("grey")
        sprue();

        color("grey")
        riser();
    }
    if (show_mould_top == "Yes")
        translate([0,10+mould_y_dimention,0])
        rotate([180,0,0])
        color("lightgrey")
        mould_top();
    if (show_mould_bottom == "Yes")
        color("lightgrey")
        mould_bottom();
}

show_what();
```