[User]
I'm looking to design a vase with a threaded lid, and I'd like to be able to control the key dimensions. I need to be able to set the overall height of the vase, the radius of the vase, and the thickness of the vase walls. The vase itself should have a standard cylindrical shape. The lid should screw onto the top of the vase with a matching thread. Could you generate the necessary OpenSCAD code for this? I don't have any specific requirements on the thread type, so a standard metric thread should be fine, and I'd prefer to avoid any pre-made libraries.

The key parameters I'd like to control are:
- `thickness`: The thickness of the vase wall and lid.
- `radius`: The overall radius of the vase (and, by extension, the lid).
- `height`: The total height of the vase.

I'd also like the threads to be functional so I'd like them to be defined using the same standard formula as metric threads, and include a "start" to the threads by offsetting them from a flat face.

I'm not worried about complex shapes for this, just a basic cylinder with threads. Also, the lid and the main container should be rendered separately, not as a single joined part.

I'd like the code to be easily customizable in the OpenSCAD Customizer, so please make sure the key variables I described above are easy to find and modify. Also, please make sure it's in a single `.scad` file.

[Assistant]
vase.scad:
```
/* [Dimensions] */
thickness = 1; //[0.5:20]
radius = 50; //[5:200]
height = 100; //[15:350]

container(thickness, radius, height);
lid(thickness, radius);

module container(thickness, radius, height)
{
	union()
	{
		translate([0, 0, height - 7]) thread_in_pitch((radius-thickness)*2, 7, 1.5);
		translate([0, 0, thickness]) difference()
		{
			translate([0, 0, -thickness]) cylinder(h = height, r = radius, center = false);
			cylinder(h = height, r = radius-thickness, center = false);

		}
	}
}

module lid(thickness, radius)
{
	translate([radius*2 + 1, 0, 7+2*thickness]) rotate([180, 0, 0])
	union()
	{
		thread_out_pitch((radius-thickness)*2, 7, 1.5);
		difference()
		{
			cylinder(h = 7+thickness, r = radius-1.5, center = false);
			translate([0,0,-thickness]) cylinder(h = 7+thickness, r = radius-2-thickness, center = false);
		}
		translate([0, 0, 7+thickness]) cylinder(h = thickness, r = radius + thickness, center = false);
	}
}

// ISO Metric Thread Implementation
// Trevor Moseley
// 20/04/2014

// For thread dimensions see
//   http://en.wikipedia.org/wiki/File:ISO_and_UTS_Thread_Dimensions.svg

$fn=30;
WrenchSizes=1;	// =0= Rolson sizes, =1=Fairbury sizes

//--demo functions--------------------------------------------------------------

//hex_bolt(10,16);						// make an M10 x 16 ISO bolt
//hex_nut(10);							// make an M10 ISO nut
//hex_bolt(8,16);						// make an M8 x 16 ISO bolt
//hex_nut(8);							// make an M8 ISO nut
//hex_bolt(6,12);						// make an M6 x 12 ISO bolt
//hex_nut(6);							// make an M6 ISO nut
//thread_out(8,16);					// make an M8 x 16 ISO thread
//thread_out_centre(8,16);				// make a centre for an M8 x 16 ISO thread
//thread_out_pitch(8,16,1.0);			// make an M8 x 16 thread with 1 mm pitch
//thread_out_centre_pitch(8,16,0.5);	// make the centre for an M8 x 16 thread with 1 mm pitch
//thread_in(8,10);						// make an M8 x 10 ISO thread
//thread_in_ring(8,10,2);				// make a ring to enclose an M8 x 10 ISO thread with thickness 2 mm
//thread_in_pitch(8,10,1.0);			// make an M8 x 10 thread with 1mm pitch

//--pitch-----------------------------------------------------------------------
// function for ISO coarse thread pitch (these are specified by ISO)
function get_coarse_pitch(dia) = lookup(dia, [
[1,0.25],[1.2,0.25],[1.4,0.3],[1.6,0.35],[1.8,0.35],[2,0.4],[2.5,0.45],[3,0.5],[3.5,0.6],[4,0.7],[5,0.8],[6,1],[7,1],[8,1.25],[10,1.5],[12,1.75],[14,2],[16,2],[18,2.5],[20,2.5],[22,2.5],[24,3],[27,3],[30,3.5],[33,3.5],[36,4],[39,4],[42,4.5],[45,4.5],[48,5],[52,5],[56,5.5],[60,5.5],[64,6],[78,5]]);

//--nut dims--------------------------------------------------------------------
// these are NOT specified by ISO
// support is provided for Rolson or Fairbury sizes, see WrenchSizes above

// function for Rolson hex nut diameter from thread size
function rolson_hex_nut_dia(dia) = lookup(dia, [
[3,6.4],[4,8.1],[5,9.2],[6,11.5],[8,16.0],[10,19.6],[12,22.1],[16,27.7],[20,34.6],[24,41.6],[30,53.1],[36,63.5]]);
// function for Rolson hex nut height from thread size
function rolson_hex_nut_hi(dia) = lookup(dia, [
[3,2.4],[4,3.2],[5,4],[6,3],[8,5],[10,5],[12,10],[16,13],[20,16],[24,19],[30,24],[36,29]]);

// function for Fairbury hex nut diameter from thread size
function fairbury_hex_nut_dia(dia) = lookup(dia, [
[3,6.0],[4,7.7],[5,8.8],[6,11.0],[8,14.4],[10,17.8],[12,20.0],[16,26.8],[20,33.0],[24,40.0],[30,50.9],[36,60.8]]);
// function for Fairbury hex nut height from thread size
function fairbury_hex_nut_hi(dia) = lookup(dia, [
[3,2.2],[4,3.0],[5,4.5],[6,5.0],[8,6.5],[10,8.1],[12,10.4],[16,14.2],[20,17],[24,20.3],[30,24.4],[36,29.5]]);

//--bolt dims-------------------------------------------------------------------
// these are NOT specified by ISO
// support is provided for Rolson or Fairbury sizes, see WrenchSizes above

// function for Rolson hex bolt head diameter from thread size
function rolson_hex_bolt_dia(dia) = lookup(dia, [
[3,6.4],[4,8.1],[5,9.2],[6,11.5],[8,14.0],[10,16],[12,22.1],[16,27.7],[20,34.6],[24,41.6],[30,53.1],[36,63.5]]);
// function for Rolson hex bolt head height from thread size
function rolson_hex_bolt_hi(dia) = lookup(dia, [
[3,2.4],[4,3.2],[5,4],[6,3.5],[8,4.5],[10,5],[12,10],[16,13],[20,16],[24,19],[30,24],[36,29]]);

// function for Fairbury hex bolt head diameter from thread size
function fairbury_hex_bolt_dia(dia) = lookup(dia, [
[3,6.4],[4,8.1],[5,8.8],[6,11.1],[8,14.4],[10,17.8],[12,20.1],[16,26.8],[20,33.0],[24,39.6],[30,50.9],[36,60.8]]);
// function for Fairbury hex bolt head height from thread size
function fairbury_hex_bolt_hi(dia) = lookup(dia, [
[3,2.4],[4,3.2],[5,3.4],[6,3.9],[8,5.1],[10,6.2],[12,7.3],[16,9.7],[20,12.2],[24,14.6],[30,17.9],[36,21.7]]);

//--top level modules-----------------------------------------------------------

module hex_bolt(dia,hi)
// make an ISO bolt
//  dia=diameter, 6=M6 etc.
//  hi=length of threaded part of bolt
{
	if (WrenchSizes==0)	rolson_hex_bolt(dia,hi);
	else					fairbury_hex_bolt(dia,hi);
}

module hex_nut(dia,hi)
// make an ISO nut
//  dia=diameter, 6=M6 etc.
{
	if (WrenchSizes==0)	rolson_hex_nut(dia);
	else					fairbury_hex_nut(dia);
}

module thread_out(dia,hi,thr=$fn)
// make an outside ISO thread (as used on a bolt)
//  dia=diameter, 6=M6 etc
//  hi=height, 10=make a 10mm long thread
//  thr=thread quality, 10=make a thread with 10 segments per turn
{
	p = get_coarse_pitch(dia);
	thread_out_pitch(dia,hi,p,thr);
}

module thread_in(dia,hi,thr=$fn)
// make an inside thread (as used on a nut)
//  dia = diameter, 6=M6 etc
//  hi = height, 10=make a 10mm long thread
//  thr = thread quality, 10=make a thread with 10 segments per turn
{
	p = get_coarse_pitch(dia);
	thread_in_pitch(dia,hi,p,thr);
}

module thread_out_pitch(dia,hi,p,thr=$fn)
// make an outside thread (as used on a bolt) with supplied pitch
//  dia=diameter, 6=M6 etc
//  hi=height, 10=make a 10mm long thread
//  p=pitch
//  thr=thread quality, 10=make a thread with 10 segments per turn
{
	h=(cos(30)*p)/8;
	Rmin=(dia/2)-(5*h);	// as wiki Dmin
	s=360/thr;				// length of segment in degrees
	t1=(hi-p)/p;			// number of full turns
	r=t1%1.0;				// length remaining (not full turn)
	t=t1-r;					// integer number of full turns
	n=r/(p/thr);			// number of segments for remainder
	// do full turns
	for(tn=[0:t-1])
		translate([0,0,tn*p])	th_out_turn(dia,p,thr);
	// do remainder
	for(sg=[0:n])
		th_out_pt(Rmin+0.1,p,s,sg+(t*thr),thr,h,p/thr);
}

module thread_in_pitch(dia,hi,p,thr=$fn)
// make an inside thread (as used on a nut)
//  dia = diameter, 6=M6 etc
//  hi = height, 10=make a 10mm long thread
//  p=pitch
//  thr = thread quality, 10=make a thread with 10 segments per turn
{
	h=(cos(30)*p)/8;
	Rmin=(dia/2)-(5*h);	// as wiki Dmin
	s=360/thr;				// length of segment in degrees
	t1=(hi-p)/p;			// number of full turns
	r=t1%1.0;				// length remaining (not full turn)
	t=t1-r;					// integer number of turns
	n=r/(p/thr);			// number of segments for remainder
	for(tn=[0:t-1])
		translate([0,0,tn*p])	th_in_turn(dia,p,thr);
	for(sg=[0:n])
		th_in_pt(Rmin+0.1,p,s,sg+(t*thr),thr,h,p/thr);
}

module thread_out_centre(dia,hi)
{
	p = get_coarse_pitch(dia);
	thread_out_centre_pitch(dia,hi,p);
}

module thread_out_centre_pitch(dia,hi,p)
{
	h = (cos(30)*p)/8;
	Rmin = (dia/2) - (5*h);	// as wiki Dmin
	cylinder(r = Rmin, h = hi);
}

module thread_in_ring(dia,hi,thk)
{
	difference()
	{
		cylinder(r = (dia/2)+0.5,h = hi);
		translate([0,0,-1]) cylinder(r = (dia/2)+0.1, h = hi+thk);
	}
}

//--low level modules-----------------------------------------------------------

module rolson_hex_bolt(dia,hi)
// make an ISO bolt with Rolson wrench sizes
//  dia=diameter, 6=M6 etc.
//  hi=length of threaded part of bolt
{
	hhi = rolson_hex_bolt_hi(dia);
	cylinder(r = rolson_hex_bolt_dia(dia)/2,h = hhi, $fn=6);
	translate([0,0,hhi-0.1])	thread_out(dia,hi+0.1);
	translate([0,0,hhi-0.1])	thread_out_centre(dia,hi+0.1);
}

module fairbury_hex_bolt(dia,hi)
// make an ISO bolt with Fairbury wrench sizes
//  dia=diameter, 6=M6 etc.
//  hi=length of threaded part of bolt
{
	hhi = fairbury_hex_bolt_hi(dia);
	cylinder(r = fairbury_hex_bolt_dia(dia)/2,h = hhi, $fn=6);
	translate([0,0,hhi-0.1])	thread_out(dia,hi+0.1);
	translate([0,0,hhi-0.1])	thread_out_centre(dia,hi+0.1);
}

module rolson_hex_nut(dia)
// make an ISO nut with Rolson wrench sizes
//  dia=diameter, 6=M6 etc.
{
	hi = rolson_hex_nut_hi(dia);
	difference()
	{
		cylinder(r = rolson_hex_nut_dia(dia)/2,h = hi, $fn=6);
		translate([0,0,-0.1])	cylinder(r = dia/2, h =hi + 0.2);
	}
	translate([0,0,0.1])	thread_in(dia,hi-0.2);
}

module fairbury_hex_nut(dia)
// make an ISO nut with Fairbury wrench sizes
//  dia=diameter, 6=M6 etc.
{
	hi = fairbury_hex_nut_hi(dia);
	difference()
	{
		cylinder(r = fairbury_hex_nut_dia(dia)/2,h = hi, $fn=6);
		translate([0,0,-0.1])	cylinder(r = dia/2, h =hi + 0.2);
	}
	translate([0,0,0.1])	thread_in(dia,hi-0.2);
}

module th_out_turn(dia,p,thr=$fn)
// make a single turn of an outside thread
//  dia=diameter, 6=M6 etc
//  p=pitch
//  thr=thread quality, 10=make a thread with 10 segments per turn
{
	h = (cos(30)*p)/8;
	Rmin = (dia/2) - (5*h);	// as wiki Dmin
	s = 360/thr;
	for(sg=[0:thr-1])
		th_out_pt(Rmin+0.1,p,s,sg,thr,h,p/thr);
}

module th_out_pt(rt,p,s,sg,thr,h,sh)
// make a part of an outside thread (single segment)
//  rt = radius of thread (nearest centre)
//  p = pitch
//  s = segment length (degrees)
//  sg = segment number
//  thr = segments in circumference
//  h = ISO h of thread / 8
//  sh = segment height (z)
{
	as = (sg % thr) * s;			// angle to start of seg
	ae = as + s  - (s/100);		// angle to end of seg (with overlap)
	z = sh*sg;
	//pp = p/2;
	//   1,4
	//   |\
	//   | \  2,5
 	//   | /
	//   |/
	//   0,3
	//  view from front (x & z) extruded in y by sg
	//
	//echo(str("as=",as,", ae=",ae," z=",z));
	polyhedron(
		points = [
			[cos(as)*rt,sin(as)*rt,z],								// 0
			[cos(as)*rt,sin(as)*rt,z+(3/4*p)],						// 1
			[cos(as)*(rt+(5*h)),sin(as)*(rt+(5*h)),z+(3/8*p)],		// 2
			[cos(ae)*rt,sin(ae)*rt,z+sh],							// 3
			[cos(ae)*rt,sin(ae)*rt,z+(3/4*p)+sh],					// 4
			[cos(ae)*(rt+(5*h)),sin(ae)*(rt+(5*h)),z+sh+(3/8*p)]],	// 5
		faces = [
			[0,1,2],			// near face
			[3,5,4],			// far face
			[0,3,4],[0,4,1],	// left face
			[0,5,3],[0,2,5],	// bottom face
			[1,4,5],[1,5,2]]);	// top face
}

module th_in_turn(dia,p,thr=$fn)
// make an single turn of an inside thread
//  dia = diameter, 6=M6 etc
//  p=pitch
//  thr = thread quality, 10=make a thread with 10 segments per turn
{
	h = (cos(30)*p)/8;
	Rmin = (dia/2) - (5*h);	// as wiki Dmin
	s = 360/thr;
	for(sg=[0:thr-1])
		th_in_pt(Rmin+0.1,p,s,sg,thr,h,p/thr);
}

module th_in_pt(rt,p,s,sg,thr,h,sh)
// make a part of an inside thread (single segment)
//  rt = radius of thread (nearest centre)
//  p = pitch
//  s = segment length (degrees)
//  sg = segment number
//  thr = segments in circumference
//  h = ISO h of thread / 8
//  sh = segment height (z)
{
	as = ((sg % thr) * s - 180);	// angle to start of seg
	ae = as + s -(s/100);		// angle to end of seg (with overlap)
	z = sh*sg;
	pp = p/2;
	//         2,5
	//          /|
	//     1,4 / |
 	//         \ |
	//          \|
	//         0,3
	//  view from front (x & z) extruded in y by sg
	//
	polyhedron(
		points = [
			[cos(as)*(rt+(5*h)),sin(as)*(rt+(5*h)),z],				//0
			[cos(as)*rt,sin(as)*rt,z+(3/8*p)],						//1
			[cos(as)*(rt+(5*h)),sin(as)*(rt+(5*h)),z+(3/4*p)],		//2
			[cos(ae)*(rt+(5*h)),sin(ae)*(rt+(5*h)),z+sh],			//3
			[cos(ae)*rt,sin(ae)*rt,z+(3/8*p)+sh],					//4
			[cos(ae)*(rt+(5*h)),sin(ae)*(rt+(5*h)),z+(3/4*p)+sh]],	//5
		faces = [
			[0,1,2],			// near face
			[3,5,4],			// far face
			[0,3,4],[0,4,1],	// left face
			[0,5,3],[0,2,5],	// bottom face
			[1,4,5],[1,5,2]]);	// top face
}

```


[User]
Hey, I'm looking to get some OpenSCAD files designed for a leaf press, which is a device used to extract juice from leaves to make Leaf Protein Concentrate. It's a pretty simple design, but I need it to be parametric so I can easily adjust the dimensions later.

Essentially, the press will have two main parts: a base and a lid. Both parts will be cylindrical with holes in them to allow the juice to escape during pressing.

Here's a breakdown of what I need:

**Base:**

*   **Overall shape:** A cylinder with a larger diameter and a slightly larger cylinder inside removed from it. It needs to have a lip at the top for pressing.
*   **Holes:** A regular grid of cylindrical holes through the bottom of the cylindrical body to allow juice to escape.
*   **Dimensions (parametric):**
    *   `d_press`: Diameter of the main cylinder of the base.
    *   `height`: Height of the base.
    *   `t_lid`:  Thickness of the base plate (thickness of the bottom section).
    *   `a`: Area over which the holes will be spaced.
    *   `r`: Radius of each hole.
    *   `s`: Spacing between hole centers.
*   **Handle:** No handle on the base.

**Lid:**

*   **Overall shape:** A cylinder the same diameter as the base with matching holes through it. Also has a lip at the base.
*  **Holes:** A regular grid of cylindrical holes through the main body, matching those on the base to allow juice to flow through.
*   **Handle:** Two handles, one on each side (or two opposing handles), each made up of a short cylinder and a half sphere. Also, a "bar" handle running between them, made of a cylinder.
*   **Dimensions (parametric):**
    *   `d_press`: Diameter of the lid (same as base).
    *   `t_lid`: Thickness of the lid plate (thickness of the base section).
    *   `a`: Area over which the holes will be spaced.
    *   `r`: Radius of each hole.
    *   `s`: Spacing between hole centers.
    *   `h_handle`: Height of the handle cylinders and radius of the half spheres on each handle.

I'd like the hole grid to be automatically centered on the base and lid, and I'd also want to be able to tweak the size of the lip on both the base and lid.

I would greatly appreciate it if you could generate the OpenSCAD files for both the base and the lid of this leaf press based on these specifications. Please use comments to help me understand the code as well.

[Assistant]
Leaf_Press.scad:
```
// This is a customizable way to create a Leaf Press for extcting juice for Leaf Protein Concentrate

//The code is derived from the Customizable Perforated Cylindrical Plate by jpearce on Thingiverse at https://www.thingiverse.com/thing:105723

//Diameter of Press
d_press = 100;

//Lid Thickness
t_lid=2*1;

//Area of the Array
a=100*1;

//Radius of the Holes
r=2*1;

//Spacing of the Holes
s=6*1;

//Depth of the Holes
t=t_lid+1;

//Height of Press
height=50;

//Height of the Handle
h_handle=d_press*.1;

//Part Type [Base, Lid]
type="Lid";

module array() {

  q = floor(a/2/s);
    for (x=[-q:q])
      for (y=[-q:q])
        translate([x*s,y*s,r/2])
          cylinder(h=t, r=r, ,center=true);
}

if (type=="Base")
{
difference(){
cylinder(h=t_lid, r=(d_press)/2, center=true);
array();
}
union(){
difference(){
translate([0,0,.5*height-.5*t_lid]) cylinder(h=height, r=(d_press+.2*d_press)/2, center=true);
translate([0,0,.5*height-.5*t_lid]) cylinder(h=height, r=(d_press)/2, center=true);
translate([0, 0, .5*height+.5*t_lid]) cube([d_press+.1*d_press, .1*d_press, height], center=true);
translate([0, 0, .5*height+.5*t_lid]) cube([.1*d_press, d_press+.1*d_press, height], center=true);
}
}
}

if (type=="Lid")
scale([.95, .95, .95]){
{
union(){
cylinder(h=t_lid, r=(d_press)/2, center=true);
cube([d_press+.1*d_press, .1*d_press, t_lid], center=true);
cube([.1*d_press, d_press+.1*d_press, t_lid], center=true);
translate([0, .25*d_press, .5*t_lid+.5*h_handle]) cylinder(h=h_handle, r=.5*h_handle,  center=true);
translate([0, -.25*d_press, .5*t_lid+.5*h_handle]) cylinder(h=h_handle, r=.5*h_handle,  center=true);
translate([0, .25*d_press, h_handle]) sphere(r=.5*h_handle);
translate([0, -.25*d_press, h_handle]) sphere(r=.5*h_handle);
translate([0, 0, h_handle]) rotate([90, 0, 0])  cylinder(h=.5*d_press, r=.5*h_handle, center=true);
}
}
}
```


[User]
I need a customizable ring generator in OpenSCAD. I want to be able to set the inner diameter, the width of the ring, how much the edges are rounded, and the overall shape of the ring's cross-section.

Specifically:

*   **Inner Diameter:** I need a parameter, `finger_dia`, which represents the inner diameter of the ring in millimeters.
*   **Ring Width:** There should be a parameter, `ring_width`, which controls the width of the ring, also in millimeters, measured parallel to the hole.
*   **Edge Rounding:** I want to control how much the edges are rounded both inside and out. A parameter called `rollover` (in mm) should control how far the round over goes inward. This will also affect the overall thickness of the ring.
*   **Roundness:** There should be a parameter, `roundness`, which will control the shape of the rings cross section. Setting this to 1 should make the cross section a circle, and setting it to 0.5 should make it look more like an oval.
*   **Smoothness:** I need a parameter called `smoothness` which should use the `$fn` modifier to make the surface smoother. This will control the number of fragments for each circle.

The design should generate the ring using a `difference` between a rotated extrusion and a cylinder. Use `rotate_extrude` to create the outer part of the ring with the round over and `cylinder` to create the inner part of the ring. The outer shape should be created using a circle scaled to control the roundness. Also use the `translate` function to correctly position the circle for the `rotate_extrude` function.

I don't need any complicated ring sizing systems, just the inner diameter parameter in millimeters.

Could you generate the OpenSCAD code for this, please?

[Assistant]
ring.scad:
```
/************** BEST VIEWED IN A CODE EDITOR 80 COLUMNS WIDE *******************
* Simple Ring
* Benjamen Johnson <workshop.electronsmith.com>
* 20191202
* Version 1
* openSCAD Version: 2019.05
*******************************************************************************/

/******************************************************************************
* Ring sizes are very confusing, so I'm not making any attempt to correlate
* the inner diameter of the ring in millimeters to any countries ring size
* standard
*******************************************************************************/
// Inside diameter of the ring
finger_dia = 18;

// How wide the ring is (parallel to hole)
ring_width = 8;

// How far you want the rounding to go inside the ring (it also affect the thickness of the ring)
rollover = 1;

// 1 is circular, 0.5 seems pleasing
roundness = 0.5;

// How smooth you want the surface of the ring
smoothness = 200;

difference(){
    rotate_extrude(angle = 360, convexity = 10,$fn=smoothness)
        translate([(finger_dia+rollover)/2,0,0])
        scale([roundness,1])
        circle(d = ring_width);

cylinder(d=finger_dia, h=ring_width, ,center=true,$fn=smoothness);
}
```


[User]
I'd like to design a parametric clip for holding LED profiles. I have some specific requirements and want to be able to adjust several parameters. It's going to be similar to the existing design found on thingiverse, but I'd like it built from scratch with the latest OpenSCAD functionality.

The clip should have an inner cavity to hold the LED profile, which will be defined by its inner width and height. There should also be a shell around this cavity with adjustable thickness, as well as a backing thickness. Additionally, the clip should have optional gripping ledges on the inside, with the option to snap them in. There should also be a countersunk screw hole in the center, with the screw hole and screw head dimensions configurable.

Here’s a rundown of all the parameters I want to control:

**General Dimensions:**

*   **innerWidth:** The inner width of the clip, where the LED profile fits.
*   **innerHeight:** The inner height of the clip.
*   **length:** The length of the clip.
*   **shellThickness:** The thickness of the shell surrounding the inner cavity.
*   **shellBackingThickness:** The thickness of the back of the clip.

**Gripping Ledge Settings:**

*   **grippingLedgeSize:** The size of the gripping ledge.
*   **grippingLedgeSnap:** A boolean to enable or disable the snap feature for the gripping ledges.

**Screw Settings:**

*   **screwDiameter:** The diameter of the screw hole.
*   **screwHeadDiameter:** The diameter of the screw head counterbore.
*   **screwHeadHeight:** The height of the screw head counterbore.

I would like the design to be created using the BOSL2 library, as this will make it easier to extend it later and provide a reliable library of functions to use. I don't want to import any models directly, just use the library.

[Assistant]
LED_Profile_Clip.scad:
```
// Inner width
innerWidth = 18.1; // [0.4:0.1:100]
// Inner height
innerHeight = 7.1; // [0.4:0.1:100]
// Length
length = 10; // [1:100]
// Thickness of shell
shellThickness = 1.2; // [0.4:0.1:10]
// Thickness of bottom
shellBackingThickness = 3; // [0.4:0.1:10]

/* [Gripping Ledge Settings] */
// Size of the gripping ledge
grippingLedgeSize = 1; // [0.4:0.1:10]
// Snap in for gripping ledge
grippingLedgeSnap = true;

/* [Screw Settings] */
// Diameter of screw
screwDiameter = 3; // [0.5:0.5:10]
// Diameter of screwhead
screwHeadDiameter = 7; // [0.5:0.5:10]
// Height of screwhead
screwHeadHeight = 1; // [0.5:0.5:10]

difference() {
    cube([innerWidth+shellThickness*2, innerHeight+shellThickness+shellBackingThickness, length]);
    union() {
        translate([shellThickness, shellThickness, -0.05]) {
            cube([innerWidth, innerHeight, length+0.1]);
        }
        translate([shellThickness+grippingLedgeSize, -0.05, -0.05]) {
            cube([innerWidth-grippingLedgeSize*2, shellThickness+0.1, length+0.1]);
        }

		if (grippingLedgeSnap == true) {
			translate([shellThickness+grippingLedgeSize, -0.05, length/2]) {
				rotate([0, 0, -45]) {
					cube([shellThickness, shellThickness, length+0.1], true);
				}
			}
			translate([shellThickness+innerWidth-grippingLedgeSize, -0.05, length/2]) {
				rotate([0, 0, 45]) {
					cube([shellThickness, shellThickness, length+0.1], true);
				}
			}
		}

        translate([shellThickness+innerWidth/2, shellThickness+innerHeight-0.05, length/2]) {
            rotate([270,0,0]) {
                cylinder(r=screwDiameter/2, h=shellBackingThickness+0.1, $fn=50);
                cylinder(r1=screwHeadDiameter/2, r2=screwDiameter/2, h=screwHeadHeight+0.1, $fn=50);
            }
        }
    }
}

```


[User]
Hey, I'm looking to create a customizable scrub brush in OpenSCAD, something similar to the attached examples. I want to be able to easily tweak the brush dimensions and bristle size, and also have the ability to create a two-sided brush by mirroring and stacking the base structure.

Here's what I'm thinking:

*   **Brush Body:** I need to define the overall length, width, and height of the brush body as parameters.
*   **Bristles:** Bristles should be defined by their length, width, and height. I'll need control over their spacing as well, both along the length and width of the brush. Maybe two different bristle types like in the examples, one a bit more toward the edge of the brush?
*   **Double-Sided Option:** I want an easy way to generate a brush that is the same on both sides, essentially mirroring and stacking the base brush. It should automatically have the mirrored side aligned correctly, using the same bristle and brush base parameters.
*   **Rounded Edges:** The base should have a rounded profile where the two mirrored parts join, to reduce any sharp edges that might make it uncomfortable to hold.
*   **Printability:** Could you design the bristles in a way that makes them easy to print? I guess one dimension should be just smaller than my printer nozzle diameter, and the other a multiple of my layer height.

I'm not sure about using any external libraries, but if there's one that makes any of this easier, I'm open to that. Could you provide me with the OpenSCAD files for this? Thanks so much.

[Assistant]
OSAT_scrub_brush_spaced_bristle.scad:
```
//OSAT srcub brush
//PJM
//MSE5777

//Brush length
bl=30;
//Brush width
bw=15;
//Brush height
h=10;
//Bristle height
hb=15;
//Bristle length
lb=0.55;
//Bristle width
wb=0.499;

l=bl+lb;
w=bw+wb;

module bristle(){
    translate([2*lb,2*wb,h])cube([lb,wb,hb]);};

module innerbristle(){
    translate([3.5*lb,3.5*wb,h])cube([lb,wb,hb]);};

n_x = l-3*lb;
x_spacing = 3*lb;
n_y = (w-4*wb);
y_spacing = 3*wb;
module square_brush(){
    union(){
    cube([l,w,h]);
for (dx=[0:x_spacing:n_x]) {
    for (dy=[0:y_spacing:n_y]) {
        translate([dx,dy,0])
            bristle();
    }
}
for (dx=[0:x_spacing:n_x-2*lb]) {
    for (dy=[0:y_spacing:n_y-wb]) {
        translate([dx,dy,0])
            innerbristle();
    }
}}}

module one_brush (){
difference(){square_brush();
translate([0,w/2+1.5*sqrt(pow(lb,2)+pow(wb,2)),0])rotate([0,0,atan(wb/lb)])cube([cos(atan(wb/lb))*1.5*w,sqrt(2)*w/2,100]);
translate([0,w/2-sqrt(pow(lb,2)+pow(wb,2)),0])mirror([0,1,0])rotate([0,0,atan(wb/lb)])cube([cos(atan(wb/lb))*1.5*w,sqrt(2)*w/2,100]);
translate([0,(w+sqrt(pow(lb,2)+pow(wb,2)))/2,10])rotate([0,0,atan(wb/lb)])cube([cos(atan(wb/lb))*(w+4*sqrt(pow(lb,2)+pow(wb,2))),sqrt(2)*w/2,100]);
translate([0,w/2,10])mirror([0,1,0])rotate([0,0,atan(wb/lb)])cube([cos(atan(wb/lb))*(w+4*sqrt(pow(lb,2)+pow(wb,2))),sqrt(2)*w/2,100]);
    }
    }

//one_brush();

union(){one_brush();translate([0,0,2*(h+hb-lb)])mirror([0,0,1])one_brush();};
```
OSAT_scrub_brush.scad:
```
//OSAT srcub brush
//PJM
//MSE5777

//Bristle height
hb=15;
//Bristle length
lb=0.5;
//Bristle width
wb=0.3;
//Brush length
bl=120;
//Brush width
bw=60;
//Brush height
h=10;
l=bl+lb;
w=bw+wb;

module bristle(){
    translate([2*lb,2*wb,h])cube([lb,wb,hb]);};

module innerbristle(){
    translate([3*lb,3*wb,h])cube([lb,wb,hb]);};

n_x = l-4*lb;
x_spacing = 2*lb;
n_y = (w-4*wb);
y_spacing = 2*wb;

module square_brush(){
    union(){
    cube([l,w,h]);
for (dx=[0:x_spacing:n_x]) {
    for (dy=[0:y_spacing:n_y]) {
        translate([dx,dy,0])
            bristle();
    }
}
for (dx=[0:x_spacing:n_x-2*lb]) {
    for (dy=[0:y_spacing:n_y-wb]) {
        translate([dx,dy,0])
            innerbristle();
    }
}}}

module one_brush (){
difference(){square_brush();
translate([0,w/2+1.5*sqrt(pow(lb,2)+pow(wb,2)),0])rotate([0,0,atan(wb/lb)])cube([cos(atan(wb/lb))*1.5*w,sqrt(2)*w/2,100]);
translate([0,w/2-sqrt(pow(lb,2)+pow(wb,2)),0])mirror([0,1,0])rotate([0,0,atan(wb/lb)])cube([cos(atan(wb/lb))*1.5*w,sqrt(2)*w/2,100]);
    translate([0,(w+sqrt(pow(lb,2)+pow(wb,2)))/2,10])rotate([0,0,atan(wb/lb)])cube([cos(atan(wb/lb))*(w+4*sqrt(pow(lb,2)+pow(wb,2))),sqrt(2)*w/2,100]);
translate([0,w/2,10])mirror([0,1,0])rotate([0,0,atan(wb/lb)])cube([cos(atan(wb/lb))*(w+4*sqrt(pow(lb,2)+pow(wb,2))),sqrt(2)*w/2,100]);}}

union(){one_brush();
    translate([0,0,2*(h+hb-lb)])mirror([0,0,1])one_brush();};
```


[User]
I want to create a customizable multi-base for tabletop gaming miniatures. I'd like to be able to set the overall width and length of the base, and have a label printed on the bottom. The base should have a slightly raised edge all the way around.

Specifically, the base itself should be a rectangular shape with a small, flat top surface and a slightly larger base. I'd like to have a raised lip that extends slightly up the sides of the base, almost like a frame around the flat surface. Finally, the label should be engraved on the bottom surface of the base and be rotatable in case of a printer setup error.

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

*   `width`: The width of the base (e.g., 101 mm). This should be adjustable in the range of 20mm to 500mm.
*   `length`: The length of the base (e.g., 82 mm). This should also be adjustable from 20mm to 500mm.
*   `label`: The text of the label to be printed on the bottom (e.g., "my\_tag").
*   `fontsize`: The font size of the label (e.g., 20). The size should be adjustable in the range of 5mm to 50mm.

Could you generate an OpenSCAD file for this? I'm envisioning that the label will be created using the `text()` module. I will be using an external library that contains the linear_extrude module, that I am not allowed to attach, so please don't include a module for linear extruding. It should be assumed that linear extrusion functionality is already available.

[Assistant]
multibase.scad:
```
width = 101; // [20:500]
// width of base

length = 82; // [20:500]
// length of base

label = "my_tag"; //label on the bottom side

fontsize = 20;// [5:50]
//size of the font

module generalform(height, width){
    difference(){
        linear_extrude(height = 5)
            {
            square(size=[length+6, width+6]);
            }

        translate([3,3,1.6]){
           linear_extrude(height = 5)
            {
            square(size=[length+3, width]);
            }
        }
    }
}
 module createLabel(length, width);
 translate([length-2,width,0.5]){
rotate(a=[0,180,90]){
    linear_extrude(height = 0.6){
text(label,size = fontsize);
}}}

module kantefront(length, width){
translate([1,width+6,5]){
rotate(a=[270,0,180]){
    linear_extrude(height = width+6){
        //polygon(points=[[0,0], [1,0], [1,5]]);
        polygon(points=[[0,0], [-1,0],[-1,-1], [1,-1], [1,5]]);
}}}}

module kanteseit_l(length, width){
translate([0,1,5]){
rotate(a=[270,0,270]){
    linear_extrude(height = length+6){
        //polygon(points=[[0,0], [1,0], [1,5]]);
        polygon(points=[[0,0], [-1,0],[-1,-1], [1,-1], [1,5]]);
}}}}

module kanteseit_r(length, width){
translate([length+6,width+5,5]){
rotate(a=[270,0,90]){
    linear_extrude(height = length+6){
        //polygon(points=[[0,0], [1,0], [1,5]]);
        polygon(points=[[0,0], [-1,0],[-1,-1], [1,-1], [1,5]]);
}}}}

//polygon(points=[[0,0],[100,0],[130,50],[30,50]]);

 difference(){
     color("blue")
     generalform(length, width);

     {kantefront(length, width);
     kanteseit_r(length, width);
     kanteseit_l(length, width);
     createLabel(length, width);}
 }

```


[User]
Hey, I'm looking to get a custom-designed Apple Lightning cable nametag, something that clips onto the cable near the lightning connector. I want it to be customizable with text and I'd like to be able to adjust the text size, font, and how high the text extrudes from the base.

Basically, I need an OpenSCAD file (or files) that generates a clip-on nametag for an Apple Lightning cable. The main body should be a rectangular block with a channel cut out for the cable to fit into. I want the text to be on one of the larger faces, extruded outwards.

Specifically, I want to be able to control these parameters:

*   `textHeight`: The height that the text is extruded out.
*   `textSize`: The size of the text.
*   `myFont`: The font used for the text.
*   `textInput`: The actual text to be displayed.

The clip part should be designed for the original, OEM Apple Lightning cable. I’m not sure of the exact dimensions, but I believe the radius of the cord is about 1.6mm. I also think the overall width of the clip area should be around 16mm, and the length of the nametag should be about 40mm long. I don't need the whole clip to be that thick - maybe around 8mm? The extruded text should be centered on one of the larger 8mm x 40mm faces.

I’m not concerned about specific shapes for the main block other than that it should be a cube with the aforementioned dimensions. I do need the cable channel cutout to be a semi-cylinder, and I'll need a matching rectangular cutout going through the block, centered over the cylinder, but just slightly larger to make sure the cable sits right.

Also, I’m going to need supports when I print, so it would probably be better for the text to be facing upwards. Can you make sure that's how the model is oriented? I’m assuming I’ll rotate it in my slicer software anyway so I'm not sure it matters if the model is laid flat in the code.

Could you please use the `linear_extrude()` function and the `text()` function for the text, and ensure the fonts are accessible in OpenSCAD? I’d prefer you stick with basic OpenSCAD functionality rather than any external libraries.

[Assistant]
lightningNametag_v2.scad:
```
//////////////////////////////////////////////////
//////////Griffin Carlson//////////////////////
/////////////////////////////////////////////////
///////Lightning Cable Anti-Bend Protector///////
///////////////////////////////////////////////////
//////////////////////////////////////////////////

/* [text] */

 //texts height above base
textHeight = .5; //[.1,.3,.5,.7,.9,1,1.1,1.3,1.5]
 //text size
textSize = 4.5; //[1:6]
 //text font
myFont = "Liberation Sans";
 //text to put on plate
textInput = "Name Here";

module outer_shell(){
    $fn=28;
    translate ([0,0,-4])
        cube([8,40,8], center = true);

}

module cord_shell(){

        translate ([0,0,-4])
        rotate ([90,0,0])
     #cylinder(r=1.6, h = 40, $fn = 24, center = true);}

module cord_path(){
    translate ([-8,0,-4])
        cube([16,40,2.8], center = true);

}

module cable_head_connector (){

}

difference(){
outer_shell();
cord_shell();
cord_path();
}

module textExtrude(){
    translate ([4,0,-4])
    rotate ([90,0,90])
    linear_extrude(height = textHeight) text(textInput, halign = "center", valign = "center", size = textSize, font = myFont);

}
textExtrude();
```


[User]
Hey, I'm looking to generate a customizable goose sign and base using OpenSCAD. I'd like the design to be parametric so I can easily tweak the dimensions and shapes.

Here's what I have in mind:

**Core Functionality:**
*   I need to be able to generate three types of objects:
    *   A plain base (no goose)
    *   A base with a cutout for a goose's feet
    *   A sign with a goose on top
*   The base/sign should be able to have different shapes, including triangle, square, pentagon, hexagon, heptagon, octagon, and a round circle.
*   The diameter of the sign and base should be customizable.
*   I need to specify the overall height of the base.
*   I want to be able to add a raised border to the base with adjustable border height and width.
*   When generating a sign, I want to be able to control the height at which the goose sits below the top of the sign.
*   I need to be able to scale and translate the goose model, using a "gose_scale_offset" to scale it, and "gose_x_offset" and "gose_y_offset" to translate it.
*   Lastly, I want an option to rotate the overall shape to better align the goose feet (or the direction of the base with an edge) with the x-axis (a "fix_shape_rotation" option).

**Specific Parameters:**

*   `model`: An option that sets whether to create a "no goose" base (0), a base with goose feet cutouts (1), or a sign with a goose on top (2).
*   `shape`: A string parameter that picks the shape from one of these choices: "triangle", "square", "pentagon", "hexagon", "heptagon", "octagon", "round"
*   `diameter`: A number defining the diameter of the base or sign.
*   `height`: A number that sets the base's height in mm.
*   `border_height`: The height of the border.
*   `border_width`: The width of the border.
*   `gose_height`: The goose's height below the top of a sign.
*   `gose_scale_offset`: A number to scale the goose in percentage (e.g., 1 is 100% scale).
*   `gose_x_offset`: Number to translate goose along the x-axis.
*    `gose_y_offset`: Number to translate goose along the y-axis.
*    `fix_shape_rotation`: A toggle to enable/disable shape rotation (1 for yes, 0 for no)

**Assumptions:**

*   You'll need to import STL files called "goose.stl" and "goose_feet.stl" to use for the goose and feet cutouts. I'll handle having these files in the same directory as the generated code.
*   The base should be a cylinder, with the selected shape cut into it. I'm okay with using a high number of segments ($fn) for smoother curves on rounded edges.
*   The "goose" STL will need to be imported and placed on top of the shape when `model` is set to 2.
*   The "goose_feet" STL will need to be imported and used to cut from the base when model is set to 1.

Could you write the OpenSCAD code to achieve this? I don't want to use any libraries other than the built-in OpenSCAD functions if possible.

Thanks!

[Assistant]
GooseSign.scad:
```
/**
 * Untitled Goose Sign and base [Customizer]
 *
 * Features:
 *  - Customized shapes
 *  - Customized sizes
 *  - Generate signs or bases
 *
 * Author: Tiago Conceição - December 2019
 * Version: 1.1
 *
 * License:
 * This work is licensed under the Creative Commons Attribution-ShareAlike 3.0
 * Unported License. To view a copy of this license, visit
 * http://creativecommons.org/licenses/by-sa/3.0/ or send a letter to Creative
 * Commons, PO Box 1866, Mountain View, CA 94042, USA.
 **/

 /**
 *
 *  The base type  was made for "gynni" model, you can grab here:
 *  https://www.thingiverse.com/thing:3906053
 *  If you scale goose model on printer, dont forget to use "gose_scale_offset" variable to set same scale value, eg: 200% on slicer = (2-1) on gose_scale_offset, this is a offset from 100% and not absolute value!
 *
 **/

/*
*   SETUP
*   Must edit stuff, configure your holder
*/
/* [SETUP] */
// Select model type, if sign with a goose, base to rest goose feets or no goose for a plain base
model = 2; //[0:No Goose, 1:Base, 2:Sign]
// Type of sign, edges?
shape = "round"; //[triangle, square, pentagon, hexagon, heptagon, octagon, round]
// Diameter of sign in mm
diameter = 100;
// Height of the base in mm
height = 3;
// Border height above base in mm
border_height = 2;
// Border width in mm
border_width = 10;
// Goose height below top in mm, For sign only!
gose_height = 1;
// Goose scale offset in percentage
gose_scale_offset = 0;
// Goose x position offset in mm
gose_x_offset = 0;
// Goose y position offset in mm
gose_y_offset = 0;
// Fix shape rotation to match goose feet with plane line instead of corners
fix_shape_rotation = 1; //[1:Yes, 0:No]
/* END SETUP */

/* [Hidden] */
//---------------------------
/*
*   SCRIPT START
*   !DO NOT MODIFY!
*
*----------------------------*/
function shapeNameToEdges(name) =   name == "triangle"  ? 3 :
                                    name == "square"    ? 4 :
                                    name == "pentagon"  ? 5 :
                                    name == "hexagon"   ? 6 :
                                    name == "heptagon"  ? 7 :
                                    name == "octagon"   ? 8 :
                                    name == "round"     ? 100 :
                                                        100;

function shapeNameToRotation(name)= name == "triangle"  ? 0 :
                                    name == "square"    ? 45 :
                                    name == "pentagon"  ? 0 :
                                    name == "hexagon"   ? 90 :
                                    name == "heptagon"  ? 0 :
                                    name == "octagon"   ? 22 :
                                    name == "round"     ? 0 :
                                                        0;

function shapeNameToScale(name)   = name == "triangle"  ? 0.8 :
                                    name == "square"    ? 1 :
                                    name == "pentagon"  ? 1.1 :
                                    name == "hexagon"   ? 1.2 :
                                    name == "heptagon"  ? 1.2 :
                                    name == "octagon"   ? 1.2 :
                                    name == "round"     ? 1.4 :
                                                        0;

shapeEdges = shapeNameToEdges(shape);
rotationZ = fix_shape_rotation ? shapeNameToRotation(shape) : 0;
scaleStl = diameter*(shapeNameToScale(shape)+gose_scale_offset)/100;
$fn=64;

module GooseBase() {
    total_height = height+border_height;

    rotate([0,0,rotationZ])
        difference() {
            color("Red") cylinder(d=diameter, h=total_height, $fn=shapeEdges);
                translate([0, 0, height])
                    color("White") cylinder(d=diameter-border_width*2, h=border_height+0.01, $fn=shapeEdges);
        }
}

module Main() {
    if(model == 0){      // Base without goose render
        GooseBase();
    }
    else if (model == 1){ // Base render
        difference() {
            GooseBase();

            rotate([0, 0, -90])
             translate([gose_x_offset, 10+gose_y_offset, height-1])
              scale([ 1.0+gose_scale_offset, 1.0+gose_scale_offset, 1])
               color("Orange") import("goose_feet.stl");
               //color("Orange") import("single_piece_fixed.stl"); // Preview only

        }
    }
    else if (model == 2){ // Sign render
        GooseBase();

        rotate([0, 0, -90])
         translate([-5+gose_x_offset, (shape=="triangle"?3:0)+gose_y_offset, height-gose_height-0.5])
          scale([ scaleStl, scaleStl, 1 ])
           color("Black") import("goose.stl");
    }
}

Main();

/**
*
* CHANGELOG
*
* Version 1.1 (07/12/2019)
*   - Added model variant to rest the goose or no goose at all
*   - Fixed gose_height not being used
*   - Fixed border_width was with half of it value
*   - Fixed center goose by default for triangle shape
*
* Version 1.0 (06/12/2019)
*   - First Release
*
**/

```


[User]
Hi there, I'm looking to create a parametric multi-function ruler in OpenSCAD, similar to the one I found online. It should have two main parts: a base ruler and a top ruler, that can be bolted together. I'd like to control quite a few aspects through parameters.

Specifically, I'd need to be able to set:

*   **Part Selection:** I'd like to be able to generate just the base, just the top, or both parts as a single design. I'd also like a "test part" option that produces shorter versions for testing.
*   **Scale:** I need a way to enable or disable a scale. When enabled, I need options for metric and imperial units.  Metric should have lines at 5mm and 10mm intervals, and imperial should have lines at 1/4 inch and 1 inch intervals.  I'd like to select between only metric, only imperial, or both on the same ruler, and also have the scale markings on the top or bottom of the ruler.
*   **Bolt:** I need parameters for the bolt diameter, a clearance around the bolt hole, the bolt head diameter, clearance around the bolt head diameter, bolt head thickness, and a clearance for the bolt head thickness. I'm working with M5 bolts, but would like to make this easily configurable for other bolts in the future.
*   **Ruler Dimensions:** I'd like to control the ruler width, base ruler thickness (including the bolt head thickness), top ruler thickness, base ruler length, and top ruler length, all as parameters.
*   **Smoothness:** It'd be good to control the `$fa` and `$fs` variables for rendering quality.

The rulers are basically long cylinders, with holes for the bolts. The scale markings should be simple extrusions on the ruler faces, and could be positioned on either side of the ruler.

I've used the NUT_JOB and nuts_and_bolts - MCAD replacement libraries previously for generating bolts and nuts; I am not requesting a rebuild of those or a library replacement. This design will need to be parametric, however, so it must create the bolts and nuts using configurable parameters rather than relying upon an external .scad.

I think that covers all of it! Let me know if you have any questions. Thanks!

[Assistant]
MultiFuncRuler.scad:
```
// MultiFuncRuler.scad
// OpenSCAD 2015.03-2
// Kijja Chaovanakij
// 2019.12.03

/*[produce option]*/
//select part
Part = 0; //[0:base&top ruler, 1:base ruler, 2:top ruler, 3:test part]
//make scale
makeScale = 0; //[0:no scale, 1:make scale]
//scale unit
scaleUnit = 0; //[0:all, 1:1/2 cm., 2:1/4 inch]

/*[bolt]*/
//bolt diameter[M5:measure=4.6]
boltDia = 4.6;
//bolt diameter clearance,[0.6]
boltClr = 0.6; //[0 : 0.1 : 1]
//bolt head diameter or distance between flats for the hex head[M5:measure=8.4]
headDia = 8.4;
//bolt head diameter clearance,[0.5]
headClr = 0.5; //[0 : 0.1 : 1]
//bolt head thickbess[M5:measure=3.0]
headThick = 3.0;
//bolt head clearance,[0.2]
headThickClr = 0.2; //[0 : 0.1 : 1]

/*[ruler]*/
//ruler width shoud be bigger than size of wingnut[20]
rulerWidth = 22; //[20 : 1 : 40]
//base ruler thickness include bolt head thickbess[5.6]
baseRulerThick = 6.4; //[5.6 : 0.2 : 8]
//top ruler thickness[3.6]
topRulerThick = 4; //[3.6 : 0.2 : 6]
//base ruler length[250]
baseRulerLength = 250; //[140 : 10 : 350]
//top ruler length[200]
topRulerLength = 200; //[140 : 10 : 350]

/*[Hidden]*/
//smoothness
$fa=6; //6
$fs=0.5; //0.5

//---- main ----
color("PowderBlue"){
  if (Part == 0 || Part == 1)
    for (i = [-rulerWidth, -rulerWidth*2-10])
      translate([i, 0, 0])
        base_ruler(baseRulerLength);
  if (Part == 0 || Part == 2)
    for (i = [rulerWidth, rulerWidth*2+10])
      translate([i, 0, 0])
        top_ruler(topRulerLength);
  if (Part == 3){
    translate([rulerWidth*4+10, -40, 0])
      base_ruler(60);
    translate([rulerWidth*4+10, 40, 0])
      top_ruler(60);
  }//i
}//c
//---- end main ----

module base_ruler(length){
  difference(){
    hull(){
      for (i = [(length-rulerWidth)/2, -(length-rulerWidth)/2])
        translate([0, i, 0])
          cylinder(h=baseRulerThick, d=rulerWidth);
    }//h
    hull(){
      for (i = [(length-rulerWidth)/2, -(length-rulerWidth)/2])
        translate([0, i, -0.01])
          cylinder(h=baseRulerThick+0.02, d=boltDia+boltClr);
    }//h
    hull(){
      for (i = [(length-rulerWidth)/2, -(length-rulerWidth)/2])
        translate([0, i, baseRulerThick-headThick-headThickClr ])
          rotate([0, 0, 90])
          cylinder(h=headThick+headThickClr+0.01, d=(headDia+headClr)/cos(30), $fn=6);
    }//h
    if (makeScale == 1)
      scale(length, "bottom");//["bottom", "top"]
  }//d
}//m
//

module top_ruler(length){
  difference(){
    hull(){
      for (i = [(length-rulerWidth)/2, -(length-rulerWidth)/2])
        translate([0, i, 0])
          cylinder(h=topRulerThick, d=rulerWidth);
    }//h
    hull(){
      for (i = [(length-rulerWidth)/2, -(length-rulerWidth)/2])
        translate([0, i, -0.01])
          cylinder(h=topRulerThick+0.02, d=boltDia+boltClr);
    }//h
    if (makeScale == 1)
      translate([0, 0, topRulerThick])
        scale(length, "top");//["bottom", "top"]
  }//d
}//m
//

module scale(length, position){
  if (scaleUnit == 0 || scaleUnit == 1){
//make scale 5 mm.
    #translate([(rulerWidth+boltDia+boltClr)/4, 0, -0.4])
        rotate([0, 0, -90])
        linear_extrude(height=0.8)
        text("M", font="LiberationMono-Bold", size=5, halign="center", valign="center");
    #for (i = [5 : 5 : length/2-10])
      translate([(rulerWidth+boltDia+boltClr)/4, i, 0])
        cube([2, 0.6, 0.8], true);
    #for (i = [-5 : -5 : -length/2+10])
      translate([(rulerWidth+boltDia+boltClr)/4, i, 0])
        cube([2, 0.6, 0.8], true);
//make scale 10 mm.
    #for (i = [10 : 10 : length/2-10])
      translate([(rulerWidth+boltDia+boltClr)/4, i, 0])
        cube([3.6, 0.6, 0.8], true);
    #for (i = [-10 : -10 : -length/2+10])
      translate([(rulerWidth+boltDia+boltClr)/4, i, 0])
        cube([3.6, 0.6, 0.8], true);
  }//i

  if (scaleUnit == 0 || scaleUnit == 2){
//make scale 1/4 inche
    #if (position == "top")
      translate([-(rulerWidth+boltDia+boltClr)/4, 0, -0.4])
        linear_extrude(height=0.8)
        rotate([0, 0, 90])
        text("In", font="LiberationMono-Bold", size=5, halign="center", valign="center");
    #if (position == "bottom")
      translate([-(rulerWidth+boltDia+boltClr)/4, 0, 0.4])
        rotate([0, 180, 90])
        linear_extrude(height=0.8)
        text("In", font="LiberationMono-Bold", size=5, halign="center", valign="center");
    #for (i = [6.35 : 6.35 : length/2-6.35])
      translate([-(rulerWidth+boltDia+boltClr)/4, i, 0])
        cube([2, 0.6, 0.8], true);
    #for (i = [-6.35 : -6.35 : -length/2+6.35])
      translate([-(rulerWidth+boltDia+boltClr)/4, i, 0])
        cube([2, 0.6, 0.8], true);
//make scale 1 inche
    #for (i = [25.4 : 25.4 : length/2-6.35])
      translate([-(rulerWidth+boltDia+boltClr)/4, i, 0])
        cube([3.6, 0.6, 0.8], true);
    #for (i = [-25.4 : -25.4 : -length/2+6.35])
      translate([-(rulerWidth+boltDia+boltClr)/4, i, 0])
        cube([3.6, 0.6, 0.8], true);
  }//i
}//m
//

```


[User]
Hey, I'm looking to get a parametric card box designed in OpenSCAD. I've already got some design parameters and ideas laid out, so hopefully it won't be too hard to implement.

The box should consist of two main parts: a bottom part that holds the cards, and a top part that acts as a lid. The design should allow the lid to fit snugly over the bottom part, but still be removable. I'd like to control the following parameters:

*   `gapThickness`: This is the gap between the top and bottom parts. It will probably need a little tweaking after printing but I'd like to start with a default value of 0.05mm.
*   `wallThickness`: The minimum wall thickness for the box, I'd like this to start at 2mm.
*   `cardDepth`: This is the thickness/depth of the card stack being stored and I'd like it to start at 10.4mm.
*   `cardWidth`: The width of a single card, I'll start with 59.5mm.
*  `cardHeight`: The height of a single card, which I'll start at 92mm.
*   `CutOutDiameter`: The diameter of a thumb-sized cutout in the bottom part, which I'd like to be 25mm.
*   `clapHeight`: The height of the lid, starting at 40mm.
*   `textSize`: The size of text characters on the lid, starting at 15mm.
*   `textDepth`: The depth of the text characters on the lid, should start at -0.5mm (engraved)
*   `textOffset`: Vertical offset of the text, starting at -3mm (adjust the vertical position of the text on the lid).
*   `chamferSize`: The size of chamfers on edges, start with 1mm.
*  `extraHeight`: A small extra height on the lid, default to 0.2mm.

The bottom part should have an outer shell and an inner area to hold the cards. I'd like the box to be able to be chamfered to give it a smoother feel. The thumb cut out should allow easy access to the cards.

The top part should also have outer and inner sections with the inner area designed to fit over the outer section of the bottom part. I'd also like the top to have the ability to add text. The text should be the standard suit symbols: ♣, ♠, ♥, and ♦. They should be placed in the center of the top.

Can you generate an OpenSCAD file or files for this? I don't need any special libraries for this. I think the standard OpenSCAD library should be sufficient.

[Assistant]
cardBox.scad:
```
// Thickness of the gap between the top part and the lower part. If the top part keeps falling off, the number is too big. If the top part can not be closed, the number is too small.
gapThickness = 0.05;
// Minimum thickness of the walls
wallThickness = 2;
// Height of the stack of cards
cardDepth = 10.40;
// Width (medium side) of a single card
cardWidth = 59.50;
// Height (long side) of a single card
cardHeight = 92;
// Diameter of the cut-out hole of the bottom part. Should be about the size of the thumb
CutOutDiameter = 25;
// Height of the upper part
clapHeight = 40;
// Size of the characters ♣♠♥♦
textSize = 15;
// Depth of the characters ♣♠♥♦
textDepth = -0.5;
// Changes the z-position of the text on the cap
textOffset = -3;
// Size of the chamfers
chamferSize = 1;

extraHeight = 0.2+0;

module edgeChamfer(edges) {
    module edgeCylinder(vertex1, vertex2, r) {
        length = norm(vertex2-vertex1);  // radial distance
        b = acos((vertex2[2]-vertex1[2])/length); // inclination angle
        c = atan2((vertex2[1]-vertex1[1]),(vertex2[0]-vertex1[0])); // azimuthal angle
        translate(vertex1) rotate([0, b, c]) cylinder(h=length,r=r,$fn = 100);
    }
    module edgeCylinderInner(vertex1, vertex2, r) {
        edgeCylinder(vertex1, vertex2, r);
    }
    module edgeCylinderOuter(vertex1, vertex2, r) {
        edgeCylinder(vertex1, vertex2, r*1.001);
    }
    difference() {
        children(0);
        for(edge=edges) {
            difference() {
                edgeCylinderInner(edge[0], edge[1], edge[2]);
                hull() difference() {
                    intersection() {children(0); edgeCylinderOuter(edge[0], edge[1], edge[2]);};
                    edgeCylinderInner(edge[0], edge[1], edge[2]);
                }
            }
        }
    }
}

module edgeChamferInner(edges) {
    module edgeCylinder(vertex1, vertex2, r) {
        length = norm(vertex2-vertex1);  // radial distance
        b = acos((vertex2[2]-vertex1[2])/length); // inclination angle
        c = atan2((vertex2[1]-vertex1[1]),(vertex2[0]-vertex1[0])); // azimuthal angle
        translate(vertex1) rotate([0, b, c]) cylinder(h=length,r=r,$fn = 100);
    }
    module edgeCylinderInner(vertex1, vertex2, r) {
        edgeCylinder(vertex1, vertex2, r);
    }
    module edgeCylinderOuter(vertex1, vertex2, r) {
        edgeCylinder(vertex1, vertex2, r*1.001);
    }
    difference() {
        children(0);
        hull() for(edge=edges) {
            difference() {
                edgeCylinderInner(edge[0], edge[1], edge[2]);
                hull() difference() {
                    intersection() {children(0); edgeCylinderOuter(edge[0], edge[1], edge[2]);};
                    edgeCylinderInner(edge[0], edge[1], edge[2]);
                }
            }
        }
    }
}

module bottomPartLower() {
    lfl = [0,0,0];
    rfl = [wallThickness*4+cardWidth,0,0];
    lbl = [0,wallThickness*4+cardDepth,0];
    rbl = [wallThickness*4+cardWidth,wallThickness*4+cardDepth,0];
    lfu = [0,0,wallThickness+cardHeight-clapHeight];
    rfu = [wallThickness*4+cardWidth,0,wallThickness+cardHeight-clapHeight];
    lbu = [0,wallThickness*4+cardDepth,wallThickness+cardHeight-clapHeight];
    rbu = [wallThickness*4+cardWidth,wallThickness*4+cardDepth,wallThickness+cardHeight-clapHeight];

    edgeChamfer([
        [lfl,rfl,chamferSize],
        [rfl,rbl,chamferSize],
        [rbl,lbl,chamferSize],
        [lbl,lfl,chamferSize],
        [lfl,lfu,chamferSize],
        [rfl,rfu,chamferSize],
        [rbl,rbu,chamferSize],
        [lbl,lbu,chamferSize]])
    cube([
        wallThickness*4+cardWidth,
        wallThickness*4+cardDepth,
        wallThickness+cardHeight-clapHeight]
    );
}

module bottomPartUpper() {
    lfl = [wallThickness,wallThickness,wallThickness+cardHeight-clapHeight];
    rfl = [wallThickness*3+cardWidth,wallThickness,wallThickness+cardHeight-clapHeight];
    lbl = [wallThickness,wallThickness*3+cardDepth,wallThickness+cardHeight-clapHeight];
    rbl = [wallThickness*3+cardWidth,wallThickness*3+cardDepth,wallThickness+cardHeight-clapHeight];
    lfu = [wallThickness,wallThickness,wallThickness+cardHeight];
    rfu = [wallThickness*3+cardWidth,wallThickness,wallThickness+cardHeight];
    lbu = [wallThickness,wallThickness*3+cardDepth,wallThickness+cardHeight];
    rbu = [wallThickness*3+cardWidth,wallThickness*3+cardDepth,wallThickness+cardHeight];

    edgeChamfer([
        [lfu,rfu,chamferSize],
        [rfu,rbu,chamferSize],
        [rbu,lbu,chamferSize],
        [lbu,lfu,chamferSize],
        [lfl,lfu,chamferSize],
        [rfl,rfu,chamferSize],
        [rbl,rbu,chamferSize],
        [lbl,lbu,chamferSize]])
    translate([wallThickness,wallThickness,0]) cube([
        wallThickness*2+cardWidth,
        wallThickness*2+cardDepth,
        wallThickness+cardHeight]
    );
}

module bottomPartInner() {
    translate([wallThickness*2,wallThickness*2,wallThickness]) cube([
        cardWidth,
        cardDepth,
        cardHeight]
    );
}

module bottomPartMain() {
    lfu = [wallThickness*2,wallThickness*2,wallThickness+cardHeight];
    rfu = [wallThickness*2+cardWidth,wallThickness*2,wallThickness+cardHeight];
    lbu = [wallThickness*2,wallThickness*2+cardDepth,wallThickness+cardHeight];
    rbu = [wallThickness*2+cardWidth,wallThickness*2+cardDepth,wallThickness+cardHeight];

    edgeChamferInner([
        [lfu,rfu,chamferSize],
        [rfu,rbu,chamferSize],
        [rbu,lbu,chamferSize],
        [lbu,lfu,chamferSize]])
    difference() {
        union() {
            bottomPartLower();
            bottomPartUpper();
        }
        bottomPartInner();
    }
}

module bottomPartCutOut() {
    translate([(wallThickness*4+cardWidth)/2, wallThickness, wallThickness+cardHeight]) rotate([270, 0, 0]) {
        cylinder(h=chamferSize,d1=chamferSize+CutOutDiameter, d2=CutOutDiameter ,$fn = 100);
        translate([0, 0, wallThickness-chamferSize]) cylinder(h=chamferSize,d1=CutOutDiameter, d2=chamferSize+CutOutDiameter ,$fn = 100);
        translate([0, 0, wallThickness+cardDepth]) cylinder(h=chamferSize,d1=chamferSize+CutOutDiameter, d2=CutOutDiameter ,$fn = 100);
        translate([0, 0, wallThickness*2+cardDepth-chamferSize]) cylinder(h=chamferSize,d1=CutOutDiameter, d2=chamferSize+CutOutDiameter ,$fn = 100);
        cylinder(h=wallThickness*2+cardDepth,d=CutOutDiameter,$fn = 100);
    }
}

module bottomPart() {
    difference() {
        bottomPartMain();
        bottomPartCutOut();
    }
}

module topPartOuter() {
    lfl = [0,0,0];
    rfl = [wallThickness*4+cardWidth,0,0];
    lbl = [0,wallThickness*4+cardDepth,0];
    rbl = [wallThickness*4+cardWidth,wallThickness*4+cardDepth,0];
    lfu = [0,0,wallThickness+clapHeight+extraHeight];
    rfu = [wallThickness*4+cardWidth,0,wallThickness+clapHeight+extraHeight];
    lbu = [0,wallThickness*4+cardDepth,wallThickness+clapHeight+extraHeight];
    rbu = [wallThickness*4+cardWidth,wallThickness*4+cardDepth,wallThickness+clapHeight+extraHeight];

    edgeChamfer([
        [lfl,rfl,chamferSize],
        [rfl,rbl,chamferSize],
        [rbl,lbl,chamferSize],
        [lbl,lfl,chamferSize],
        [lfl,lfu,chamferSize],
        [rfl,rfu,chamferSize],
        [rbl,rbu,chamferSize],
        [lbl,lbu,chamferSize]])
    cube([
        wallThickness*4+cardWidth,
        wallThickness*4+cardDepth,
        wallThickness+clapHeight+extraHeight]
    );
}

module topPartInner() {
    translate([wallThickness-gapThickness,wallThickness-gapThickness,wallThickness]) cube([
        cardWidth+wallThickness*2+gapThickness*2,
        cardDepth+wallThickness*2+gapThickness*2,
        clapHeight+extraHeight]
    );
}

module topPartMain() {
    lfu = [wallThickness-gapThickness,wallThickness-gapThickness,wallThickness+clapHeight+extraHeight];
    rfu = [wallThickness*3+gapThickness+cardWidth,wallThickness-gapThickness,wallThickness+clapHeight+extraHeight];
    lbu = [wallThickness-gapThickness,wallThickness*3+gapThickness+cardDepth,wallThickness+clapHeight+extraHeight];
    rbu = [wallThickness*3+gapThickness+cardWidth,wallThickness*3+gapThickness+cardDepth,wallThickness+clapHeight+extraHeight];

    edgeChamferInner([
        [lfu,rfu,chamferSize],
        [rfu,rbu,chamferSize],
        [rbu,lbu,chamferSize],
        [lbu,lfu,chamferSize]])
    difference() {
        topPartOuter();
        topPartInner();
    }
}

module topText() {
    translate([(wallThickness*4+cardWidth)/2,0,(wallThickness+clapHeight+gapThickness)/2-textOffset]) rotate([90,180,0]) {
        translate([-1.2*textSize,-0.3*textSize,0]) rotate([0,0,30]) linear_extrude(abs(textDepth)) text("♣", font="Arial:style=Black", halign="center", size=textSize);
        translate([-0.4*textSize,0,0]) rotate([0,0,10]) linear_extrude(abs(textDepth)) text("♠", font="Arial:style=Black", halign="center", size=textSize);
        translate([0.4*textSize,0,0]) rotate([0,0,-10]) linear_extrude(abs(textDepth)) text("♥", font="Arial:style=Black", halign="center", size=textSize);
        translate([1.2*textSize,-0.3*textSize,0]) rotate([0,0,-30]) linear_extrude(abs(textDepth)) text("♦", font="Arial:style=Black", halign="center", size=textSize);
    }
}

module topPart() {
    if (textDepth >= 0) {
        union() {
            topPartMain();
            topText();
        }
    } else {
        difference() {
            topPartMain();
            translate([0,-textDepth-0.001,0])topText();
        }
    }

}

translate([0, wallThickness*4+cardDepth+10, 0]) bottomPart();

//color("cyan") translate([0, wallThickness*8+cardDepth*2+10, wallThickness*2+cardHeight+gapThickness]) rotate([180,0,0])

topPart();

//text("♣♠♥♦", font="Yu Gothic:style=Regular");

```


[User]
Hey, I need some help designing a customizable base for tabletop gaming miniatures, something like a plastic base with a hollowed-out bottom. I'd like to be able to easily change the size of it.

Specifically, I want a rectangular base with a flat top and a flat bottom that's hollowed out. The hollow should leave a consistent wall thickness around all edges. I’d like to control the overall width and length. The base should have a set height, and the hollow area should have its own smaller height. I'm thinking the "floor" of the hollow should be flat and parallel to the bottom of the base, creating that hollow space.

I'd like to use OpenSCAD, and I'd like it to be parametric so I can easily tweak all of those dimensions. I think using the polyhedron command and defining the points and faces for both the outer base shape and the inner void would be a good way to go about this. I'm not really familiar with OpenSCAD libraries, so something basic and easy to understand would be perfect.  Could you generate the necessary OpenSCAD code for me?

[Assistant]
base_rectangular.scad:
```
width = 20; // [20:5:200]
// width of base

length = 20; // [20:5:200]
// length of base

CubePoints_outer = [
  [  0,         0,          0    ],  //0
  [ width,      0,          0    ],  //1
  [ width,      length,     0    ],  //2
  [  0,         length,     0    ],  //3
  [  1,         1,          3.4  ],  //4
  [ width-1,    1,          3.4  ],  //5
  [ width-1,    length-1,   3.4  ],  //6
  [  1,         length-1,   3.4  ]]; //7

  CubePoints_inner = [
  [  1.5,       1.5,          0    ],  //0
  [ width-1.5,  1.5,          0    ],  //1
  [ width-1.5,  length-1.5,     0    ],  //2
  [  1.5,       length-1.5,     0    ],  //3
  [  2.2,       2.2,          1.9  ],  //4
  [ width-2.2,    2.2,          1.9  ],  //5
  [ width-2.2,    length-2.2,   1.9  ],  //6
  [  2.2,         length-2.2,   1.9  ]]; //7

CubeFaces = [
  [0,1,2,3],  // bottom
  [4,5,1,0],  // front
  [7,6,5,4],  // top
  [5,6,2,1],  // right
  [6,7,3,2],  // back
  [7,4,0,3]]; // left

  difference(){
polyhedron( CubePoints_outer, CubeFaces );
polyhedron( CubePoints_inner, CubeFaces );
  }
```


[User]
I'm looking to design a parametric enclosure for a small PCB, specifically a buck converter module. I've got a modified version of a design I found on Thingiverse, but it's not quite what I need and I'd like something more flexible and robust.

Here’s what I need:

*   **Basic Box Structure:** The enclosure should be a simple box with a sliding lid. The box should have a base and four walls that enclose the PCB. The lid will slide in from one of the short sides of the box (the width side in the existing file I've attached).
*   **Parametric Dimensions:** I need to be able to easily adjust the internal dimensions of the box to fit different sized PCBs, especially the width, length, and height. There should also be parameters to set the wall thickness and a small bottom margin for the PCB.
*   **Mounting Tabs:** I need mounting tabs along the edges of the box, at the corners and midpoint of the short ends and at the midpoint of the long ends. These should include mounting holes. The hole and tab size should also be parametric.
*   **No Cutouts:** The existing design has some cutouts that I don't need. I just want a basic box with no extra openings.
*   **Buck Converter Specifics:** I need the design to accommodate a small buck converter PCB, and the existing design is scaled for an Arduino. A 10-30v @ 1A to 5v @ 1A converter is pretty standard so I'd like the box to account for typical sizes. We can probably just assume its dimensions are a bit larger than the typical 1" x 1" size of the core components, maybe 20mm x 40mm x 10mm. These dimensions should also be parametric so I can fit other boards.
*   **Sliding Lid:** The lid should slide in from the narrow side. I would like to have a parameter to define the clearance for the slide (e.g. the existing `slisse` parameter). The lid itself should also be parametric, using the same `wall_width` and `box_height` parameters as the base of the enclosure. The design should also account for the thickness of the base of the enclosure when calculating the lid thickness.

For libraries, I'm not really sure what I need, but I'd like to use best practices so if there's a good one for generating the parametric objects it would be great.

I think that's everything. Can you generate the necessary OpenSCAD files?

[Assistant]
pcb_box_slide_with_4tabs_param.scad:
```
/* pcb_box_slide_with_tabs.scad
 * By Nicholas C Lewis - Jan 1, 2011
 * http://www.thingiverse.com/thing:5396
 *
 * derived from pcb_box_slide.scad
 *     Parametric, open PCB-box (slide-in) by chlunde
 *     http://www.thingiverse.com/thing:4071
 *
 * CHANGES
 * - adjusted to fit Arduino Mega
 * - added mounting tabs
 * - turned off cutouts
 * - adjusted bottom cutout size
 */

//Uno is 2.7" x 2.1" which is 68.58 mm x 53.34 mm
//Round up to 69 mm x 54 mm
pcb_width = 16;
pcb_length =36;
pcb_height =1.2;
slisse = 1;

pcb_bottom_margin = 4;
wall_width_thick = 3.5;
wall_width = wall_width_thick-slisse;
box_height = 10;

//tab parameters
tab_hole_radius=3;
tab_outer_radius=6;

module tab() {
	difference(){
		union() {
			translate([-tab_outer_radius,-tab_outer_radius,0])
			cube([tab_outer_radius,2*tab_outer_radius,wall_width]);
			translate([-tab_outer_radius,0,0])
				cylinder(r=tab_outer_radius, h = wall_width);
		}
		translate([-tab_outer_radius,0,0])
		cylinder(r= tab_hole_radius, h = wall_width+3,center=true);
	}

}

module box() {
  union() {
    cube([pcb_width + 2*wall_width, pcb_length + 2*wall_width, wall_width]);

    cube([wall_width_thick, pcb_length + 2*wall_width, box_height]);

    cube([pcb_width + 2*wall_width, wall_width_thick, box_height]);

    %translate([0, pcb_length+wall_width, 0])
      cube([pcb_width + 2*wall_width,wall_width,box_height]);

    translate([pcb_width + wall_width - slisse,0,0])
      cube([wall_width_thick, pcb_length + 2*wall_width, box_height]);
  }
//comment out this part to remove tabs
 for(i=5){
	translate([0,i,0])tab();
	translate([pcb_width + 2*wall_width,i,0])mirror()tab();
 }
  for(i=pcb_length){
	translate([0,i,0])tab();
	translate([pcb_width + 2*wall_width,i,0])mirror()tab();
 }

}

module pcb() {
  translate([wall_width, wall_width, wall_width + pcb_bottom_margin])
    cube([pcb_width,pcb_length + wall_width + 0.1,pcb_height]);
  translate([wall_width, wall_width, wall_width + pcb_bottom_margin+pcb_height])rotate([0,45,0])
    cube([pcb_height,pcb_length + wall_width + 0.1,pcb_height]);
  translate([wall_width+pcb_width-2*cos(45)*pcb_height, wall_width, wall_width + pcb_bottom_margin+pcb_height])rotate([0,45,0])
    cube([pcb_height,pcb_length + wall_width + 0.1,pcb_height]);
  translate([wall_width_thick, wall_width, wall_width + pcb_bottom_margin])
    cube([pcb_width-2*slisse,pcb_length + wall_width + 0.1,box_height]);

}

module holes() {
  *translate([wall_width + pcb_width/2, wall_width_thick + 0.1, pcb_width/2+wall_width])
    rotate(a=90,v=[1,0,0])
      cylinder(r=pcb_width/2, h=wall_width_thick + 0.2);

  *translate([-0.1, wall_width + pcb_length/2, pcb_length/2 + wall_width])
    rotate(a=90,v=[0,1,0])
      cylinder(r=pcb_length/2, h=wall_width_thick + 0.2);

  *translate([pcb_width + wall_width - slisse - 0.1, wall_width + pcb_length/2, pcb_length/2 + wall_width])
    rotate(a=90,v=[0,1,0])
      cylinder(r=pcb_length/2, h=wall_width_thick + 0.2);

 * translate([pcb_width/2 + wall_width, wall_width + pcb_length/2, -0.1])
    rotate(a=0,v=[0,1,0])
      cylinder(r=min(pcb_length,pcb_width)/2 - wall_width/2, h=wall_width_thick + 0.2);

  inner_margin = 9;
  translate([inner_margin +wall_width, inner_margin+wall_width, -0.1])
    cube([pcb_width-inner_margin*2,pcb_length -inner_margin*2,wall_width + 0.2]);
}

difference() {
  box();
  pcb();
  holes();
}

* color([1,0,0])
  translate([pcb_width/2 + wall_width, wall_width + pcb_length/2, -0.1])
    rotate(a=0,v=[0,1,0])
      cylinder(r=min(pcb_length,pcb_width)/2 - wall_width/2, h=wall_width_thick + 0.2);

```


[User]
Hi, I'm looking to create a customizable container for baking supplies, specifically those little packets of baking powder, vanilla sugar, etc. I've seen some examples, but I want to be able to adjust everything to my needs.

Ideally, the design should be a rectangular box, but with rounded edges using a minkowski sum of a cube and a sphere, so no sharp corners. I need to be able to specify the overall width, length, and height of the box. I also need to control the wall thickness, which I’d want to keep at least twice the nozzle diameter, so the minimum value should be easily calculated from the specified nozzle size. The box should be hollowed out, leaving walls, a floor, and no lid.

Furthermore, I want to be able to create internal compartments within the box. I need to specify the *number* of compartments, and they should be evenly spaced across the *length* of the box using internal walls extending to a set height a small amount shorter than the main wall height. Each internal wall should have the same thickness as the outside walls, and go all the way from one side to the other across the *width* of the box.

I also need to be able to adjust the resolution of curves (like the sphere).

Could you provide an OpenSCAD file that allows me to control all these parameters? I'm looking for a parametric design where I can specify dimensions and the number of compartments, and then generate the model. I'm not looking for a "finished" design, I want the parameters to be adjustable by the user. I'm comfortable with basic OpenSCAD features. I don't need anything fancy from other libraries right now, just base OpenSCAD features should be fine. Thanks!

[Assistant]
Backingpowder.scad:
```
/************************ Customizable Backing Powder Box Creator ************/
Width = 66;           // Width of the box
Length = 200;        // Thickness of the box
Height = 45;        // Height of the box
walls =2.4;        // Thickness of the box minimum Value is 2x nozzle diameter
Compartments = 7; // Compartments of the Box
$fn=50;// Curve Resolution Standard Value : 50

difference(){
minkowski(){
    cube([Width,Length,Height], center = true);
    sphere(1);
}
//Chop off the top
translate ([0,0,walls]) cube ([Width-walls,Length-walls,Height], center = true);

//Hollow inside
}

    if( Compartments > 0 ){
            cutl = ((Length)/(Compartments));
    for(i = [cutl : cutl : cutl*(Compartments-1)]){
        translate ([-(Width/2),(-Length/2)+i,-Height/2]) cube([Width,walls,Height-5]);

}
}
```


[User]
Hey, I'm looking to design a battery tray for AA batteries, but I need it to have a specific layout and some customizable features. I've seen some designs that use clusters of 2x2 batteries, but I'd like a design using clusters of 4 batteries in a row, which will eliminate that center post that some designs have.

Here's what I'm thinking:

*   **Battery Type:** AA (14.5mm diameter). I'd like to be able to change this easily in the future to support other battery diameters if needed.
*   **Tray Height:**  The tray height should be adjustable.
*   **Layout:** The layout should be configurable for the number of 4-battery clusters, both in a row and in depth. For example, I may want an 8x1 (8 clusters in a row, one deep), or a 4x2 (4 clusters in a row, 2 deep), etc.
*   **Spacing:** There should be adjustable spacing between the battery clusters, as well as some padding from the edges of the tray.
*   **Base Thickness:** I'd like to control the thickness of the base under the batteries.
*   **Corner Rounding:** The corners of the tray should have a customizable rounding radius.

I think that covers everything. Can you generate an OpenSCAD file for me based on these requirements? I don't have any preferences on libraries, so use whatever is appropriate to accomplish this. Thank you!

[Assistant]
battery_tray_inline.scad:
```
// remix of https://www.thingiverse.com/thing:48235 by walter, 2013
// by @doegox CC-BY-SA, 2019

// battery diameter (AA-14.5, AAA-10.6 123A-16.8 CR2-15.5)
_diameter = 14.5;

// height of the tray
_height = 8; // [1:80]

// number of battery clusters across
_columns = 8; // [1:12]

// number of battery clusters deep
_rows = 1; // [1:12]

// padding between the clusters of batteries (also affects padding along the edges)
_spacing = 1.2;

// thickness of the base under the batteries
_base = 0.5;

// radius of corner rounding
_cornerRounding = 4.0;

module batteryQuad(diameter, height) {
	angle = 35;
	r = diameter/2;
	cut = 2*r*sin(angle);
	tan = tan(angle);
	filletCenter = r - r * tan;
	filletCenter2 = r + r * tan;
	filletOffset = r * tan;
	filletRadius = r/cos(angle) - r;

	eps = 0.1;

	difference() {
		union() {
			for (y=[-3*r, -r,r, 3*r]) {
				translate([0,y,0]) {
					cylinder(r=r, h=height, center=true);
				}
			}
			cube(size=[cut,cut+4*r,height], center=true);
		}
		// round
		for (yt=[-2*r, 0, 2*r]) {
			translate([0,yt,0]) {
				for(x=[filletOffset, -filletOffset]) {
					translate([x, 0, 0]) {
						cylinder(r=filletRadius, h=height+eps, center=true, $fn=30);
					}
				}
			}
		}
	}
}

module makeTray(diameter, height, rows, columns, spacing, base, rounding) {
	eps = 0.1;
	rounding = min(rounding, diameter/2 + spacing*2);
	quadSize = 2 * diameter;
	width = (quadSize/2 + spacing) * columns + spacing*2;
	depth = (quadSize*2 + spacing) * rows + spacing*2;
	xstart = -width/2 + spacing*1.5 + quadSize/4;
	ystart = -depth/2 + spacing*1.5 + quadSize;

	difference() {
		hull()
		for (x=[-width/2 + rounding, width/2 - rounding])
		for (y=[-depth/2 + rounding, depth/2 - rounding]) {
			translate([x,y])
			cylinder(r=rounding, h=height);
		}
		translate([0,0,height/2 + base]) {
			for (x=[0:1:columns-1])
			for (y=[0:1:rows-1]) {
				translate([xstart + (quadSize/2 + spacing)*x,
							 ystart + (quadSize*2 + spacing)*y,0]) {
					batteryQuad(diameter, height);
				}
			}
		}
	}
}

makeTray(_diameter, _height, _rows, _columns, _spacing, _base, _cornerRounding, $fn=90);

```


[User]
I'd like to create a customizable snowflake-shaped card with text on it, similar to the one I saw on Thingiverse, but I need it to be fully parametric. I need the following features:

*   **Card Size:** I need to be able to adjust the overall size of the card in both X and Y dimensions. I'd like to specify these dimensions separately, and not just a single scaling factor.
*   **Card Thickness:** I need to control the thickness of the card itself.
*   **Text Extrusion:** The text should be raised above the card's surface, and I need to control how much it's raised.
*   **Custom Text:** Obviously, I need to be able to input the text that appears on the card.
*   **Font Customization:** I want to be able to select the font for the text from a predefined list, and also have the option to manually enter a Google Font name (including the style, like "Amatic SC:bold").
*  **Character Spacing:** Need to be able to adjust the spacing between the letters in the text
*  **Font Size:** Need to be able to set the font size

The basic card shape is kind of complex, but it's a 2D polygon. I was thinking it could be defined by a set of points in an array. Also, there are other internal cutouts that are also polygons, and I need to be able to add them into a difference. I was thinking of making a union with all the cutouts.

I'd really appreciate it if you could generate the necessary OpenSCAD files. I don't need any external libraries for this, but if you were going to do something like that, I'd want to make sure it was something like BOSL or BOSL2. I'd really like to make sure I can specify which font to use with a `font_name` variable with the options `Default`, `Gloria Hallelujah`, `Pacifico`, `Courgette`, `Permanent Marker`, `Domine:Domine bold`, `Ultra`, `Bevan`, `Corben:Corben bold`, `Coustard:Coustard bold`, and `Manual` where if manual is selected I'd have to specify it in a separate `font_name_manual` variable. I'd also want a `character_spacing` variable that's a decimal from .5 to 1.2. I need to know if the selected font has a bold style because if it does I need to append `:bold` to the name. It would be nice to see some debugging output in the console if I enable a `doEcho` boolean, so I can see what's going on, like what the font names are.

[Assistant]
snowflake_card_inline.scad:
```
/* [Customize] */

// size in X direction - default is 90 mm
size_x     = 90;
scale_x    = size_x/90;

// size in Y direction - default is 50 mm
size_y     = 50;
scale_y    = size_y/50;

// thickness of the card base - default is 1 mm
thickness  = 1.0;

// extension of the text above the base - default is 0.6 mm
font_above = 0.6;

// greeting text
greeting   = "Merry Christmas";

// font size - dezimal - height above the baseline. - Default is '4.4'.
font_size = 4.4;

// font name - use predefined Names or 'Manual' - Default is 'Gentium Book Basic:style=Bold Italic'
font_name = "Default"; // [Default, Gloria Hallelujah, Pacifico, Courgette, Permanent Marker, Domine:Domine bold, Ultra, Bevan, Corben:Corben bold, Coustard:Coustard bold, Manual]

// use it if font name is 'Manual' - manual entered g o o g l e font name - incl style parameter - example is 'Amatic SC:bold'
font_name_manual = "Amatic SC:bold";

// factor to increase/decrease the character spacing. '1.0' is normal spacing. - default is '1-0'
character_spacing = 1.0; // [0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2]

// Show some Log Information for Debugging to Console [boolean]
doEcho = true; // [false,true]
if(doEcho) echo("WARNING: doEcho ist true!");

/* [Hidden] */

if(doEcho) echo(str("font_name: ", font_name));

// Font Names with Bold Style
function isBold() =
    "Domine" == font_name ?
        true
	: "Corben" == font_name ?
        true
	: "Coustard" == font_name ?
        true
	: false;

if(doEcho) echo(str("isBold(): ", isBold()));

function getFontNameWithStyle() =
    isBold() ?
	    str(font_name, ":bold")
	: font_name;
if(doEcho) echo(str("getFontNameWithStyle(): ", getFontNameWithStyle()));

function is_manual_entered_font_name() = font_name == "Manual" ? true : false;
function is_default_font_name() = font_name == "Default" ? true : false;

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

// Model - Start
print_part();
// Model - End

// Modules - Start
module print_part()
{
  scale([scale_x,scale_y,1])
  linear_extrude(height=thickness)
  rotate([180,0,0])
  difference()
  {
    polygon(points=[[86.398,-0.00157166],[86.8677,-0.0769653],[87.4045,-0.236404],[87.9845,-0.508743],[88.5607,-0.908829],[89.0729,-1.42097
    ],[89.473,-1.99716],[89.7453,-2.57722],[89.9047,-3.114],[89.9801,-3.58369],[90,-3.98172],[90,-45.9817
    ],[89.9801,-46.3797],[89.9047,-46.8494],[89.7453,-47.3862],[89.473,-47.9663],[89.0729,-48.5424],[88.5607,-49.0546
    ],[87.9845,-49.4547],[87.4045,-49.727],[86.8677,-49.8865],[86.398,-49.9619],[86,-49.9817],[4,-49.9817
    ],[3.60197,-49.9619],[3.13228,-49.8865],[2.5955,-49.727],[2.01544,-49.4547],[1.43925,-49.0546],[0.927109,-48.5424
    ],[0.527023,-47.9663],[0.254684,-47.3862],[0.0952454,-46.8494],[0.0198517,-46.3797],[0,-45.9817],[0,-3.98172
    ],[0.0198517,-3.58369],[0.0952454,-3.114],[0.254684,-2.57722],[0.527023,-1.99716],[0.927109,-1.42097],[1.43925,-0.908829
    ],[2.01544,-0.508743],[2.5955,-0.236404],[3.13228,-0.0769653],[3.60197,-0.00157166],[4,0.0182648],[86,0.0182648]]);

    union()
    {
      polygon(points=[[24.3725,-27.0647],[20.6419,-29.2186],[20.35,-29.2186],[19.8367,-29.6834],[15.3858,-32.2532],[12.25,-29.2186
      ],[8.54999,-29.2186],[7.14999,-34.2186],[5.75,-29.2186],[2.41666,-27.9686],[1.5,-27.9686],[1.5,-45.9443
      ],[1.5139,-46.223],[1.56087,-46.5156],[1.66045,-46.8509],[1.83115,-47.2145],[2.08266,-47.5767],[2.40503,-47.899
      ],[2.76724,-48.1506],[3.13081,-48.3213],[3.46609,-48.4209],[3.75868,-48.4678],[4.03738,-48.4817],[12.4737,-48.4817
      ],[13.3668,-46.9348],[13.951,-43.4231],[10.3208,-39.7106],[15.351,-40.9982],[17.201,-37.7939],[16.1408,-33.5609
      ],[20.5917,-30.9911],[21.251,-30.7791],[21.3969,-30.5263],[25.1275,-28.3724]]);

      polygon(points=[[73.0807,-33.7817],[69.5,-37.4817],[69.5,-41.1817],[74.5,-42.5817],[69.5,-43.9817],[68.25,-47.315
      ],[68.25,-48.4817],[85.9626,-48.4817],[86.2413,-48.4678],[86.5339,-48.4209],[86.8692,-48.3213],[87.2327,-48.1506
      ],[87.595,-47.899],[87.9173,-47.5767],[88.1688,-47.2145],[88.3395,-46.8509],[88.4391,-46.5156],[88.4861,-46.223
      ],[88.5,-45.9443],[88.5,-37.1061],[87.2163,-36.3649],[83.7045,-35.7808],[79.992,-39.4109],[81.2796,-34.3808
      ],[78.0753,-32.5308]]);

      polygon(points=[[35.7001,-47.1848],[32.951,-44.9231],[27.9208,-46.2106],[31.5509,-42.4982],[29.701,-39.2939],[24.75,-37.8799
      ],[19.799,-39.2939],[17.949,-42.4982],[21.5792,-46.2106],[16.549,-44.9231],[13.7998,-47.1848],[13.0511,-48.4817
      ],[36.4489,-48.4817 ]]);

      polygon(points=[[67.75,-47.315],[66.5,-43.9817],[61.5,-42.5817],[66.5,-41.1817],[66.5,-37.4817],[63.4653,-34.3459
      ],[66.0351,-29.895],[66.5,-29.3817],[66.5,-29.0898],[68.6538,-25.3592],[67.3461,-24.6042],[65.1923,-28.3348
      ],[64.9395,-28.4808],[64.7274,-29.14],[62.1577,-33.591],[57.9247,-32.5308],[54.7204,-34.3808],[56.0079,-39.4109
      ],[52.2955,-35.7808],[48.0814,-36.4817],[50.7955,-33.1827],[49.5079,-28.1526],[53.2204,-31.7827],[56.4247,-29.9327
      ],[57.8386,-24.9817],[56.4247,-20.0308],[53.2204,-18.1808],[49.5079,-21.8109],[50.7955,-16.7808],[48.0814,-13.4817
      ],[52.2955,-14.1827],[56.0079,-10.5526],[54.7204,-15.5827],[57.9247,-17.4327],[62.9193,-16.1817],[66.5,-12.4817
      ],[66.5,-8.78172],[61.5,-7.38171],[66.5,-5.98172],[67.75,-2.64838],[67.75,-1.48172],[56.5,-1.48172
      ],[56.5,-7.48172],[36.7224,-7.48172],[36.1332,-8.50235],[35.549,-12.0141],[39.1792,-15.7265],[34.149,-14.439
      ],[32.299,-17.6433],[33.55,-22.6379],[37.25,-26.2186],[40.95,-26.2186],[42.35,-21.2186],[43.75,-26.2186
      ],[47.75,-27.7186],[43.75,-29.2186],[42.35,-34.2186],[40.95,-29.2186],[37.25,-29.2186],[33.55,-32.7993
      ],[32.299,-37.7939],[34.149,-40.9982],[39.1792,-39.7106],[35.549,-43.4231],[36.1332,-46.9348],[37.0263,-48.4817
      ],[67.75,-48.4817 ]]);

       polygon(points=[[22.55,-31.5291],[18.6179,-34.3396],[18.5,-38.5439],[22.082,-36.3396 ]]);
       polygon(points=[[26.95,-31.5291],[27.4179,-36.3396],[31,-38.5439],[30.882,-34.3396 ]]);
       polygon(points=[[66,-33.7817],[68,-37.4817],[70,-33.7817],[68,-29.3817 ]]);
       polygon(points=[[23.849,-32.2791],[24.75,-36.4575],[25.651,-32.2791],[24.75,-30.7186 ]]);
       polygon(points=[[69.5,-29.3817],[72.3694,-32.5498],[71.0605,-28.4808],[69.5,-27.5798 ]]);
       polygon(points=[[27.3481,-29.2186],[28.249,-30.7791],[32.3181,-32.088],[29.15,-29.2186 ]]);
       polygon(points=[[59.379,-27.6497],[57.1747,-31.2317],[61.379,-31.1138],[64.1895,-27.1817 ]]);
       polygon(points=[[71.8105,-27.1817],[74.621,-31.1138],[78.8253,-31.2317],[76.621,-27.6497 ]]);
       polygon(points=[[12.25,-27.7186],[15.95,-29.7186],[20.35,-27.7186],[15.95,-25.7186 ]]);
       polygon(points=[[29.15,-27.7186],[33.55,-29.7186],[37.25,-27.7186],[33.55,-25.7186 ]]);
       polygon(points=[[1.5,-7.48172],[1.5,-27.4686],[2.41666,-27.4686],[5.75,-26.2186],[7.14999,-21.2186],[8.54999,-26.2186
      ],[12.25,-26.2186],[15.95,-22.6379],[17.201,-17.6433],[15.351,-14.439],[10.3208,-15.7265],[13.951,-12.0141
      ],[13.3668,-8.50235],[12.7776,-7.48172 ]]);
       polygon(points=[[28.249,-24.6581],[27.3481,-26.2186],[29.15,-26.2186],[32.3181,-23.3491 ]]);
       polygon(points=[[20.35,-26.2186],[22.1519,-26.2186],[21.251,-24.6581],[17.1819,-23.3491 ]]);
       polygon(points=[[59.2611,-24.9817],[63.4395,-25.8827],[65,-24.9817],[63.4395,-24.0807 ]]);
       polygon(points=[[71,-24.9817],[72.5605,-25.8827],[76.7389,-24.9817],[72.5605,-24.0807 ]]);
       polygon(points=[[23.849,-23.1581],[24.75,-24.7186],[25.651,-23.1581],[24.75,-18.9797 ]]);
       polygon(points=[[18.6179,-21.0975],[22.55,-23.9081],[22.082,-19.0975],[18.5,-16.8933 ]]);
       polygon(points=[[27.4179,-19.0975],[26.95,-23.9081],[30.882,-21.0975],[31,-16.8933 ]]);
       polygon(points=[[74.621,-18.8497],[71.8105,-22.7817],[76.621,-22.3138],[78.8253,-18.7317 ]]);
       polygon(points=[[59.379,-22.3138],[64.1895,-22.7817],[61.379,-18.8497],[57.1747,-18.7317 ]]);
       polygon(points=[[64.9395,-21.4827],[66.5,-22.3836],[66.5,-20.5817],[63.6305,-17.4136 ]]);
       polygon(points=[[71.0605,-21.4827],[72.3694,-17.4136],[69.5,-20.5817],[69.5,-22.3836 ]]);
       polygon(points=[[13.3549,-7.48172],[13.7998,-8.25232],[16.549,-10.5141],[21.5792,-9.22653],[17.949,-12.939],[19.799,-16.1433
      ],[24.75,-17.5572],[29.701,-16.1433],[31.5509,-12.939],[27.9208,-9.22653],[32.951,-10.5141],[35.7001,-8.25235
      ],[36.1451,-7.48172 ]]);
       polygon(points=[[68.25,-1.48172],[68.25,-2.64838],[69.5,-5.98172],[74.5,-7.38171],[69.5,-8.78172],[69.5,-12.4817
      ],[73.0807,-16.1817],[78.0753,-17.4327],[81.2796,-15.5827],[79.992,-10.5526],[83.7045,-14.1827],[87.2162,-13.5985
      ],[88.5,-12.8574],[88.5,-4.0191],[88.4861,-3.7404],[88.4391,-3.44781],[88.3395,-3.11253],[88.1688,-2.74896
      ],[87.9173,-2.38675],[87.595,-2.06438],[87.2327,-1.81287],[86.8692,-1.64217],[86.5339,-1.54259],[86.2413,-1.49562
      ],[85.9626,-1.48172 ]]);
       polygon(points=[[70,-16.1817],[68,-12.4817],[66,-16.1817],[68,-20.5817 ]]);
       polygon(points=[[85.2045,-16.7808],[86.492,-21.8109],[82.7796,-18.1808],[79.5753,-20.0308],[78.1614,-24.9817],[79.5753,-29.9327
      ],[82.7796,-31.7827],[86.492,-28.1526],[85.2045,-33.1827],[87.4662,-35.9319],[88.5,-36.5287],[88.5,-13.4347
      ],[87.4662,-14.0316 ]]);
    }
  }

  translate([scale_x*57/2, scale_y*7.5/2, 1e-3])
  color("red")
  linear_extrude(height = thickness+font_above)
  {
    text(
      greeting,
      font = is_default_font_name() ? "Gentium Book Basic:style=Bold Italic" : is_manual_entered_font_name() ? font_name_manual : getFontNameWithStyle(),
      size = font_size,
      spacing = character_spacing,
      valign ="center", halign="center"
    );
  }
}
// Modules - End

```


[User]
I'm looking to design a bike chain tensioner for my mountain bike, and I need it to be customizable using OpenSCAD. I want to be able to easily adjust the dimensions to fit different bike frames and chain setups. The basic idea is a U-shaped bracket that mounts to the frame, with a guide wheel that the chain runs over.

Specifically, I need parameters for:

*   `width`: The width of the bracket, which will correspond to the width of the bike frame where the tensioner mounts.
*   `height`: The overall height of the tensioner, which affects the amount of tension it applies to the chain. I want this to control the height of the bracket part of the device.
*   `radius`: The radius of the guide wheel, which the chain will pass over.
*   `length`: The length of the bracket arms that extend back from the center of the radius. This affects the space needed along the chain stay.
*   `thickness`: The wall thickness of the bracket, which will need to be adjusted for printing.
*   There should be a solid, round mounting part at the top to attach it to the frame with a bolt.
*   The two bracket arms extending from the circular guide wheel need to be of equal length.
*   There also needs to be a small, rectangular tab that is centered on each arm of the bracket, as well as a second rectangular tab that is centered behind the wheel, all on the outside of the bracket. These act as guides to further secure the chain.

I'm not sure how best to handle the angles and positioning of all the parts, but I imagine some math will be needed to relate the height, radius, and length together. The tensioner should be mostly one solid piece, with the guide wheel integrated with the bracket. I want it to be printable in PLA, so no super complex shapes are needed. Can you provide me with a parametric OpenSCAD design to achieve this? I want to be able to easily tweak the values to get the perfect fit. I don't have a particular preference for library usage, whatever makes the most sense.

[Assistant]
Bike_Chain_Tensioner.scad:
```
//Customizable code to create a bike chain tensioner for any moutain bike. Input values for bike frame width and desired height and length values for the tensioner.

//Tensioner Width
width=15;
//Tensioner Height
height=40;
//Tensioner Radius
radius=10;
//Tensioner Length
length=50;
//Wall Thickness
thickness=2;
//Size calculation for use later in the code
cube_size=sqrt((length-2*radius)*(length-2*radius)+(height-radius)*(height-radius));

difference()
{
union()
{
difference()
{
rotate([0, 90, 0]) cylinder(r=radius, h=width, center=true);
translate([0, 0, -.5*radius]) cube([width*2, 2*radius, radius], center=true);
}
translate([-.5*width, -.5*length+radius, .5*height]) cube([thickness, length, height], center=true);
translate([.5*width, -.5*length+radius, .5*height]) cube([thickness, length, height], center=true);
translate([0, -.5*length+radius, height-.5*radius]) cube([width, length, radius], center=true);
}
translate([0, -2*radius-.5*cube_size, 0]) rotate([-asin((height-radius)/cube_size), 0, 0])  cube(cube_size, center=true);
translate([0, -.5*length+radius, height]) rotate([90, 0, 0]) cylinder(r=radius, h=length, center=true);
translate([0, -.2*length+radius, .9*height-radius]) cube([width+5, .1*length, 2], center=true);
translate([0, -.7*length+radius, .9*height-radius]) cube([width+5, .1*length, 2], center=true);
translate([0, 0, height]) cube([3.75, 2*length, height], center=true);
}
```


[User]
I'd like a set of parametric train tracks that can be easily 3D printed and snapped together. I have a few specific requirements and some ideas I'd like you to incorporate if possible:

First, the tracks should be compatible with standard toy train sizes, specifically using a wheel spacing of 25.4mm and a wheel width of 7mm. The wheel walls should be 3mm thick, and the rails should extend down by 3mm below the base. The base thickness for the tracks should be 5mm. The distance between the bars connecting the two rails should be 14mm, and the bars themselves should be 6mm wide.

I want both straight and curved tracks. The straight tracks should have a default length of 120mm. The curved tracks should default to a 45 degree arc and a curve radius of 150mm. I'd like all parameters, like length, arc, and radius, to be easily adjustable through variables in the file.

The most important thing though is the snap-together mechanism. I'm envisioning a simple latch design that is easy for a toddler to press together, rather than having to push the pieces in. This will involve a protruding piece that interlocks with a recess on the other end. I'm thinking the latch should be about half the distance between the rails wide. Please also include a tolerance variable for the latch, which will allow me to adjust the fit if needed. This tolerance should be adjustable both in terms of length and in terms of angle of rotation for the curved pieces. For the curved pieces, it should be applied in the direction of the tangent to the curve at the end of each piece.

Ideally, each track segment should have two latches, one at each end and they should be facing opposite directions. The latches should also include a connection that is slightly wider than the main track portion to provide additional strength.

Finally, can you make it so that the bars connecting the two rails are automatically placed along the track? The spacing should be uniform so the connections are robust.

I'd prefer to have these generated as separate files for each track piece - one for the straight track and one for the curved track.

[Assistant]
train_tracks.scad:
```
// Created in 2019 by Ryan A. Colyer.
// This work is released with CC0 into the public domain.
// https://creativecommons.org/publicdomain/zero/1.0/

$fa = 1; $fs = 0.4;

display_demo = 0;  // [0:false, 1:true]
tiny_tracks = 0;  // [0:false, 1:true]
curved_track = 1;  // [0:false, 1:true]
straight_track = 1;  // [0:false, 1:true]

default_segment_len = 120;
default_arc = 45;
default_curve_rad = 150;
wheel_width = 7;
wheel_wall = 3;
wheel_spacing = 25.4;
wheel_inset = 3;
base_thick = 5;
bar_spacing = 14;
bar_width = 6;
latch_tol = 0.30;
rail_half = wheel_width/2 + wheel_wall;
inter_rail = wheel_spacing - 2*rail_half;

module Rail() {
    translate([-rail_half, 0])
      square([wheel_wall, base_thick + wheel_inset]);
    translate([+(1/2)*wheel_width, 0])
      square([wheel_wall, base_thick + wheel_inset]);
    translate([-(1/2)*wheel_width, 0])
      square([wheel_width, base_thick]);
}

module Latch() {
  cube([rail_half+0.4*inter_rail-latch_tol, bar_width, base_thick]);
  translate([rail_half+0.10*inter_rail, -bar_width-latch_tol, 0]) {
    cube([0.50*inter_rail, bar_width, base_thick]);
    cube([0.30*inter_rail-latch_tol, 1.5*bar_width, base_thick]);
  }
  translate([wheel_spacing-rail_half-0.10*inter_rail+latch_tol, 0, 0])
    cube([0.10*inter_rail+rail_half, bar_width, base_thick]);
}

module CurvedTrack(arc=default_arc, curve_rad=default_curve_rad) {
  rotate_extrude(angle=arc) translate([curve_rad, 0]) {
    translate([-wheel_spacing/2, 0])
      Rail();
    translate([+wheel_spacing/2, 0])
      Rail();
  }

  inner_circ = (curve_rad-wheel_spacing/2+rail_half)*2*PI;
  inner_len = inner_circ*arc/360;
  inner_bars = round((inner_len-bar_width)/bar_spacing);
  inner_bar_step = (360/inner_circ)*(inner_len-bar_width)/inner_bars;

  translate([curve_rad-wheel_spacing/2, 0, 0])
    Latch();
  rotate([0, 0, arc])
    translate([2*curve_rad, 0, 0])
    rotate([0, 0, 180])
    translate([curve_rad-wheel_spacing/2, 0, 0])
    Latch();

  for (b=[1:inner_bars-1]) {
    rotate([0, 0, b*inner_bar_step])
      translate([curve_rad-wheel_spacing/2, 0, 0])
      cube([wheel_spacing, bar_width, base_thick]);
  }
}

module StraightTrack(len=default_segment_len) {
  translate([0, len, 0])
    rotate([90, 0, 0])
    linear_extrude(len) {
      translate([-wheel_spacing/2, 0])
        Rail();
      translate([+wheel_spacing/2, 0])
        Rail();
    }

  inner_bars = round((len-bar_width)/bar_spacing);
  inner_bar_step = (len-bar_width)/inner_bars;

  translate([-wheel_spacing/2, 0, 0])
    Latch();
  translate([wheel_spacing/2, len, 0])
    rotate([0, 0, 180])
    Latch();

  for (b=[1:inner_bars-1]) {
    translate([-wheel_spacing/2, b*inner_bar_step, 0])
      cube([wheel_spacing, bar_width, base_thick]);
  }
}

module TrackDemo() {
  atol = latch_tol*360 / (default_curve_rad*2*PI);

  CurvedTrack();
  rotate([0, 0, default_arc+atol]) CurvedTrack();
  rotate([0, 0, 2*default_arc+2*atol]) CurvedTrack();
  rotate([0, 0, 3*default_arc+3*atol]) CurvedTrack();
  rotate([0, 0, 4*default_arc+4*atol]) CurvedTrack();
  translate([2*default_curve_rad, -latch_tol, 0])
    rotate([0, 0, 180]) CurvedTrack();

  rotate([0, 0, 5*default_arc+4*atol])
    translate([default_curve_rad, latch_tol, 0])
    StraightTrack();

  translate([1.6*default_curve_rad, -0.2*default_curve_rad, 0])
    rotate([0, 0, 180])
    CurvedTrack();

  translate([0.3*default_curve_rad, -1.4*default_segment_len, 0])
    StraightTrack();
}

if (display_demo) {
  TrackDemo();
}
else {
  if (curved_track) {
    if (tiny_tracks) {
      CurvedTrack(default_arc/2);
    }
    else {
      CurvedTrack();
    }
  }
  if (straight_track) {
    if (tiny_tracks) {
      StraightTrack(default_segment_len/2);
    }
    else {
      StraightTrack();
    }
  }
}

```