[User]
Okay, I'm looking to create a customizable "magic wallet" design in OpenSCAD, and I need some help making it parametric. I want it to be a case for business cards with the ability to personalize it with text and a logo. I'd also like to be able to print the sides and straps separately, potentially in different colors. Here are the details:

**Basic Structure:**

*   The wallet consists of two rectangular panels (sides) and straps that connect them.
*   The sides should have customizable text and an optional image/logo on them.
*   The straps should be printable, and their thickness should be adjustable.
*   I need adjustable tolerances for the fit of the straps.
*   I'd also like the sides to be able to be printed in a "portrait" mode.

**Customization Options:**

*   **Text (Side 1 - Red):**
    *   Three lines of customizable text.
    *   Adjustable text size.
    *   Adjustable text extrusion height.
    *   Adjustable text vertical position (Y-axis).
    *   Text should be able to be changed to a different font (I'd like to be able to use any .dxf format font)
*   **Text or Image (Side 2 - Green):**
    *   Option to have either text or an image.
    *   If text, three lines of customizable text, with the same adjustments as side 1 (size, height, vertical position)
    *   If image/logo:
        *   Image path should be customizable. I have a greyscale image I'd like to use.
        *   Adjustable image scale.
        *   Adjustable image position (both X and Y).
    *   Adjustable rotation for text and images would be great!
*   **Dimensions:**
    *   Overall width (Y-axis).
    *   Overall length (X-axis).
    *   Side thickness.
    *   Strap hole heights (different for each side - should have 2 small ones on one side and one big on the other).
    *  Strap hole width.
*   **Advanced Options:**
    *   Option to print just the sides, just the straps, or everything.
    *   Strap thickness adjustment.
    *   Tolerance adjustment for strap fit.

**Additional Requirements:**

*   I'd like to be able to use the "write" library for text generation from a dxf file. I already have the `write/Write.scad` library and a few fonts like "orbitron.dxf" available.
*   I want the design to be modular enough so that I can easily adapt it for different sizes or add new features.
*   The design should address the issue of images or text protruding through the bottom of the sides.

**Specific parameters from the existing code I want to include:**

```
text_line_1_side1="Magic Wallet v2.1";
text_line_2_side1="w/ Dualstrusion";
text_line_3_side1="Designed for 3D Printing";
text_position_side1=10;

side2="text";
side2_image="image_surface.dat";
img_scale=.5;
text_position_side2y=0;
text_postion_side2x=0;
text_line_1_side2="By: Tim Chandler";
text_line_2_side2="A.K.A. 2n2r5";
text_line_3_side2="------------";

text_size=5;
text_height=1.5;
text_font="write/orbitron.dxf";

mw_height=1.5;
mw_width=60;
mw_length=100;
mw_strap_small=15;
mw_strap_big=15;
mw_strap_w=2;
strap_dfe=3;

part = "all" ;
strap_thk=.3;
fit_tol=.2;

text_rot=90;
hole_count=0;
```
Also, I have a file named "image-surface.dat" that's a high contrast image I intend to use for the second side.

Can you provide me with a parametric OpenSCAD file based on these requirements? I'm still learning OpenSCAD, and your help is greatly appreciated!

[Assistant]
magic_wallet.scad:
```
use <write/Write.scad>;

/* [Personalize] */

//Your text for the Red panel first line
text_line_1_side1="Magic Wallet v2.1";
//Your text for the Red panel second line
text_line_2_side1="w/ Dualstrusion";
//Your text for the Red panel third line
text_line_3_side1="Designed for 3D Printing";
//The position of the text. Y-Axis only
text_position_side1=10; //[1:25]

//is side 2 (Green Panel) text or an image?
side2="text"; //[text,image]

//Your high contrast logo
side2_image="image_surface.dat"; //[image_surface:100x100]

//Image Scale
img_scale=.5; //[.1,.2,.3,.4,.5,.6,.7,.8,.9,1]

//The position of the text or image. Y-Axis only
text_position_side2y=0; //[-25:25]
//The position of the text or image. x-Axis only
text_postion_side2x=0; //[-25:25]
//Your text for the Green panel first line
text_line_1_side2="By: Tim Chandler";
//Your text for the Green panel second line
text_line_2_side2="A.K.A. 2n2r5";
//Your text for the Green panel third line
text_line_3_side2="------------";

//Text Size
text_size=5; //[0,1,2,3,4,5,6,7,8,9,10]
//How far should the text extrude?
text_height=1.5; //[1,1.5,2,2.5]
//Select your font
text_font="write/orbitron.dxf"; //[write/letters.dxf,write/BlackRose.dxf,write/braille.dxf,write/knewave.dxf,write/orbitron.dxf]

/* [Size and Shape] */

//Thickness of each side
mw_height=1.5; //[1.5:thin,2:medium,2.5:thick]
//Y-Axis Dimensions
mw_width=60; //[50:150]
//X-Axis Dimensions
mw_length=100; //[50:150]
//Left side hole heights
mw_strap_small=15; //[2:20]
//Right side hole heights
mw_strap_big=15; //[2:20]
//Strap hole widths
mw_strap_w=2; //[1,2,3]
//Up this when making strap holes wider
strap_dfe=3; //[2,3,4]

/* [Advanced] */

//What should we print out? (Use individual sides for portait or larger wallets)
part = "all" ; //[sides:Sides Only,straps:Straps Only,all:Straps and Sides,side1:Red Side,side2:Green Side,text:text and images only]

//strap thickness
strap_thk=.3; //probably don't want to mess with this

//tolerance for fit. subtracted from straps only
fit_tol=.2; //[0,.1,.2,.3,.4,.5,.6,.7,.8]

/* [Hidden] */

//size as defined above
size=[mw_width,mw_length,mw_height];

//Features waiting to be fixed
//Adjustable text rotation
text_rot=90;
//2x2 holes or 2x1 holes
hole_count=0; //[0:2x1,1:2x2]

image_file = "image-surface.dat"; // [image_surface:100x100]

//z shift for print of straps
zshift=(strap_thk)*-1;

//---Don't mess with anything down here unless you know whats going on---//

//PART BEGIN: Side 1 (red side)

module magicWallet_side1()
{
	difference()
	{
		union() //All the parts that we want to add
		{

			color("red")
			cube(size, center=true);

		if(print=="text")
		{

		}
		else
		{
		//text line 1
			translate([text_position_side1*-1,0,size[2]-1])
			color("black")
			rotate(text_rot)
			write(text_line_1_side1,h=text_size,t=text_height,font=text_font,
				center=true);
		//text line 2
			translate([(text_size+2+(text_position_side1*-1)),0,size[2]-1])
			color("black")
			rotate(text_rot)
			write(text_line_2_side1,h=text_size,t=text_height,font=text_font,
				center=true);
		//text line 3
			translate([(2*(text_size+2)+(text_position_side1*-1)),0,size[2]-1])
			color("black")
			rotate(text_rot)
			write(text_line_3_side1,h=text_size,t=text_height,font=text_font,
				center=true);
		}

		}

		union() //All the parts that we want to remove
		{

//Makes sure the bottom has nothing protruding (problem with adding images)
			translate([0,0,-size[2]])
			cube(size, center=true);

// making the holes for the small straps

//bottom
			translate([size[0]/3,(size[1]/2-strap_dfe)*-1,-size[2]])
			cube([mw_strap_small,mw_strap_w,20],center=true);

//top
			translate([(size[0]/3*-1),(size[1]/2-strap_dfe)*-1,-size[2]])
			cube([mw_strap_small,mw_strap_w,20],center=true);

// making the holes for the big straps (1/2 of height and right side)
			translate([0,(size[1]/2-strap_dfe),-size[2]])
			cube([mw_strap_big,mw_strap_w,20],center=true);

// Pretty edges to be added

		}

	}

}
//PART END: Side 1

//PART BEGIN: Side 2 (Green Side)

module magicWallet_side2()
{

	difference()
	{
		union() //All the parts that we want to add
		{
			color("green")
			cube(size, center=true);
		if(part=="text")
		{

		}
		else
		{

			if(side2=="image")
			{

				translate([text_position_side2y*-1,text_postion_side2x,size[2]-.8])
				color("black")
				scale([img_scale,img_scale,text_height])
				rotate(90)
				surface(file=side2_image, center=true, convexity=5);

			}
				else
			{
			//text line 1
				translate([text_position_side2y*-1,text_postion_side2x,size[2]-1])
				color("black")
				rotate(text_rot)
				write(text_line_1_side2,h=text_size,t=text_height,font=text_font,
				center=true);
			//text line 2
				translate([(text_size+2+(text_position_side2y*-1)),text_postion_side2x,size[2]-1])
				color("black")
				rotate(text_rot)
				write(text_line_2_side2,h=text_size,t=text_height,font=text_font,
				center=true);
			//text line 3
				translate([(2*(text_size+2)+(text_position_side2y*-1)),text_postion_side2x,size[2]-1])
				color("black")
				rotate(text_rot)
				write(text_line_3_side2,h=text_size,t=text_height,font=text_font,
				center=true);
			}
			}
		}

		union() //All the parts that we want to remove
		{

			//Makes sure the bottom has nothing protruding (problem with adding images)
			translate([0,0,-size[2]])
			cube(size, center=true);

			// making the holes for the small straps

			//bottom
			translate([size[0]/3, (size[1]/2-strap_dfe)*-1,-size[2]])
			cube([mw_strap_small,mw_strap_w,20],center=true);

			//top
			translate([(size[0]/3*-1),(size[1]/2-strap_dfe)*-1,-size[2]])
			cube([mw_strap_small,mw_strap_w,20],center=true);

			// making the holes for the big straps
			translate([0,(size[1]/2-strap_dfe),-size[2]])
			cube([mw_strap_big,mw_strap_w,20],center=true);

// Pretty edges to be added

		}

	}

}

//PART END: Side 2

//PART BEGIN: STRAPS

module smallStraps()
{
	difference()
	{
		union()
		{
			translate([0,0,0])
			cube([mw_strap_small-fit_tol,size[1]+size[2]*2,mw_strap_w-fit_tol],center=true);

			translate([-mw_strap_small*1.1,0,0])
			cube([mw_strap_small-fit_tol,size[1]+size[2]*2,mw_strap_w-fit_tol],center=true);
		}

		union()
		{
			translate([0,0,zshift])
			cube([mw_strap_small,size[1],mw_strap_w-strap_thk],center=true);

			translate([-mw_strap_small*1.1,0,zshift])
			cube([mw_strap_small,size[1],mw_strap_w-strap_thk],center=true);
		}
	}

}

module bigStraps()
{
	difference()
	{
		union()
		{
			translate([0,0,0])
			cube([mw_strap_big-fit_tol,size[1]+size[2]*2,mw_strap_w-fit_tol],center=true);

		}

		union()
		{
			translate([0,0,zshift])
			cube([mw_strap_big,size[1],mw_strap_w-strap_thk],center=true);

		}
	}

}

//END PART: Straps

//BEGIN PART: Text (for when print=="text")

module textOnly()

{
if(part=="text")
{

		difference()
		{
			union()
			{

translate([0,0,size[2]/2])
{
		//text line 1
			translate([text_position_side1*-1,0,size[2]-1])
			color("black")
			rotate(text_rot)
			write(text_line_1_side1,h=text_size,t=text_height,font=text_font,
				center=true);
		//text line 2
			translate([(text_size+2+(text_position_side1*-1)),0,size[2]-1])
			color("black")
			rotate(text_rot)
			write(text_line_2_side1,h=text_size,t=text_height,font=text_font,
				center=true);
		//text line 3
			translate([(2*(text_size+2)+(text_position_side1*-1)),0,size[2]-1])
			color("black")
			rotate(text_rot)
			write(text_line_3_side1,h=text_size,t=text_height,font=text_font,
				center=true);

}

translate([size[0]+4,0,size[2]/2])
{
			if(side2=="image")
				{

				translate([text_position_side2y*-1,text_postion_side2x,size[2]-1])
				color("black")
				scale([img_scale,img_scale,text_height])
				rotate(90)
				surface(file=side2_image, center=true, convexity=5);

				}
				else
				{
			//text line 1
				translate([text_position_side2y*-1,text_postion_side2x,size[2]-1])
				color("black")
				rotate(text_rot)
				write(text_line_1_side2,h=text_size,t=text_height,font=text_font,
				center=true);
			//text line 2
				translate([(text_size+2+(text_position_side2y*-1)),text_postion_side2x,size[2]-1])
				color("black")
				rotate(text_rot)
				write(text_line_2_side2,h=text_size,t=text_height,font=text_font,
				center=true);
			//text line 3
				translate([(2*(text_size+2)+(text_position_side2y*-1)),text_postion_side2x,size[2]-1])
				color("black")
				rotate(text_rot)
				write(text_line_3_side2,h=text_size,t=text_height,font=text_font,
				center=true);
				}
}

			}
			union()
			{
			translate([0,0,size[2]/2])
			cube(size,center=true);

			translate([size[0]+4,0,size[2]/2])
			cube(size, center=true);
			}
		}
	}

		else
		{
		}
}

//Print Parts

print_part();

module print_part() {
	if (part == "sides") {
		sides();
	} else if (part == "straps") {
		straps();
	} else if (part == "all") {
		all();
	} else if (part == "side1") {
		side1();
	} else if (part == "side2") {
		side2();
	} else if (part == "text") {
		justtext();
	} else {
		all();
	}
}

module all()
{
	translate([0,0,size[2]/2])
	magicWallet_side1();

	//move side 2 down 1 width + 4
	translate([size[0]+4,0,size[2]/2])
	magicWallet_side2();

		//move small straps to right of design by 1 length + 4 and rotate 90
		color("gray")
		translate([size[0]*.5,size[1]/2+1.1*mw_strap_small,(mw_strap_w-fit_tol)/2])
		rotate([0,180,90])
		smallStraps();

		//move big straps to left of design by 1.1 length and rotate 90
		color("gray")
		translate([size[0]*.5,(size[1]/2+1.1*mw_strap_big)*-1,(mw_strap_w-fit_tol)/2])
		rotate([0,180,90])
		bigStraps();
}

module sides()
{
	translate([0,0,size[2]/2])
	magicWallet_side1();

	//move side 2 down 1 width + 4
	translate([size[0]+4,0,size[2]/2])
	magicWallet_side2();
}

module straps()
{
		//move small straps to right of design by 1 length + 4 and rotate 90
		color("gray")
		translate([size[0]*.5,0,(mw_strap_w-fit_tol)/2])
		rotate([0,180,90])
		smallStraps();

		//move big straps to left of design by 1.1 length and rotate 90
		color("gray")
		translate([size[0]*.5, -(mw_strap_big+mw_strap_small),(mw_strap_w-fit_tol)/2])
		rotate([0,180,90])
		bigStraps();

}

module side1()
{
		magicWallet_side1();
}

module side2()
{
		magicWallet_side2();
}

module justtext()
{
	textOnly();
}

```


[User]
Okay, so I have this OpenSCAD file I've been messing with, it's called "lithopane_takuya2.scad," and it's supposed to make a lithophane from an image. I've attached the code. I've already tweaked it a bit from the original to make it round, but I'm finding it hard to make it truly parametric.

Here's what I want:

I need an OpenSCAD file that generates a round lithophane from an image, just like what I have now, but with some added flexibility. Specifically, I'd like these parameters:

*   **Image File:**  This should be a way to specify the path to the image file. I understand the image will be stretched to fit. Simple photos work best, and the program needs to account for needing to invert colors.
*   **Diameter:**  I need a way to control the diameter of the circular lithophane.
*   **Hole Diameter:** This is the diameter of a mounting hole (or similar feature). I need the lithophane to have a mounting hole (or similar feature).
*   **Layer Height:** This is important for print quality.
*   **Number of Layers:** I need to be able to control how many layers are used to create the lithophane's thickness.
*   **Detail/Resolution:** This controls the number of segments used to define the circle, so a higher value will mean a smoother circle. This is currently controlled by $fn.
*  **Base Thickness:** I need to be able to control the base thickness with a parameter. Currently the base is defined by `min_layer_height = layer_height*2`.

The current file does use `surface()`, `linear_extrude()`, `circle()`, `difference()`, `union()`, `translate()`, and `scale()`. I would like to keep those modules if possible.

Could you generate a parametric OpenSCAD file that includes all of these options? I want to be able to easily adjust the shape, thickness, and detail from the customizer. I'm not using any additional external libraries.

[Assistant]
lithopane_takuya2.scad:
```
// preview[view:south, tilt:top]

/* [Image] */

// Load a 100x100 pixel image.(images will be stretched to fit) Simple photos work best. Don't forget to click the Invert Colors checkbox!
image_file = "image-surface.dat"; // [image_surface:100x100]

/* [Adjustments] */

hole_diameter = 10;

// What layer height will you slice this at?  The thinner the better.
layer_height = 0.2;

// The lower the layer height, the more layers you can use.
number_of_layers = 12; // [5:20]

//detail
detail=8; //[8,10,12,24,48,96]

/* [Hidden] */

length = 100;
width = 100;
// base (white) will always be 2 layers thick
min_layer_height = layer_height*2;
hole_radius = hole_diameter/2;
height = layer_height*number_of_layers;

union() {
intersection() {
//union() {
  // take just the part of surface we want
  difference() {
    translate([0, 0, min_layer_height]) scale([1,1,height]) surface(file=image_file, center=true, convexity=5);
    translate([0,0,-(height+min_layer_height)]) linear_extrude(height=height+min_layer_height) circle(r=length/2, center=true,$fn=detail);
  }
//  linear_extrude(height=layer_height*2) circle(r=(length+4)/2, center=true);

  //linear_extrude(height=height+min_layer_height){
//	  difference(){
//		union(){
//	      circle(r=(length+4)/2,center=true);
//		  translate([0, width/2+hole_radius+2, 0])
//		    circle(r=hole_radius+5);
//		}
//	    union(){
//	      circle(r=length/2, center=true);
//		  translate([0, width/2+hole_radius+2, 0])
//	        circle(r=hole_radius);
//	    }
//	  }
//  }
//}
cylinder(r=(length+4)/2,h=40,center=false,$fn=detail);
				}
 linear_extrude(height=layer_height*2) circle(r=(length+4)/2, center=true,$fn=detail);
linear_extrude(height=height+min_layer_height)
			{
difference(){
		union(){
	      circle(r=(length+4)/2,center=true,$fn=detail);
		  translate([0, width/2+hole_radius+2, 0])
		    circle(r=hole_radius+5);
				}
	    union(){
	      circle(r=length/2, center=true,$fn=detail);
		  translate([0, width/2+hole_radius+2, 0])
	        circle(r=hole_radius);
	   			 }
	 		 }
			}
		}
```


[User]
Okay, I'm working on a design for a really strong, flexible tube and I've got a pretty good starting point, but I need some help refining it and making it parametric in OpenSCAD.

Here's the idea: I want a tube that's really resistant to axial pressure but can still bend a little bit. It's built from a series of interlocking elements with a string running through the center to hold them all together and create some tension, kind of like prestressed concrete. My current design works okay, but it has some limitations.

Here are the key issues with my current design and what I want in the new design:

**Problems with the Current Design:**

*   **Edge Wear:** The edges of the individual tube elements can get damaged after repeated bending. I need to make them more robust.
*   **Tension Loss:** The string tension loosens after bending, probably due to less friction on the angled element interfaces. I'd like to improve this if possible.
*   **Element Stability:** Longer elements seem to be less stable, so I might need some adjustments there.

**Desired Improvements and New Features:**

1.  **Rounded, Durable Shape:** I want the tube elements to have a more rounded, durable shape instead of sharp edges, to prevent the wear I'm seeing.
2.  **Constricted Openings:** I think constricting the openings on both ends of each element might improve how they interlock and perhaps help with the tension issues. This might involve some kind of conical section at each end.
3.  **Improved Tensioning:** I'm open to suggestions for an improved tensioning mechanism. I'm using a string now, but perhaps a different method of attachment or type of string? I'm not sure how to implement this in OpenSCAD though.
4. **Parametric Design:** I want to be able to easily adjust:
    * The overall length of the tube
    * The radius of the tube
    * The length of each individual element
    * The wall thickness of the elements
    * The cone angle of the constrictions.
    * The string hole radius
    * The number of elements

**Here's what I'm looking for in the OpenSCAD code:**

*   A module to generate a single tube element with the rounded, durable shape and constricted openings.
*   A module to generate the end pieces (similar to what I have, but designed to work with the new element design). One to end the tube (end_pat) and one to begin the tube (end_mat).
*   A module to assemble the whole tube from a given number of elements and the end pieces.
*   Parameters that are clearly defined and easily adjustable.
*   Comments explaining what the code is doing

I'm not sure which libraries would be most helpful, but I am open to using them if they can help achieve the design goals. I am fairly familiar with basic OpenSCAD functions but need help implementing some of the more complex shapes and parametric controls. I'd prefer not to rely on external modules unless absolutely necessary for the core functionality.

Essentially, I want an improved, parametric version of my "unbreakable tube" that's more robust and easier to customize.

[Assistant]
unbreakable_tubeV3.scad:
```
/////////////////////////////////////////////////////////////////////////////////////////////
// Unbreakable Tube, Version 3
//
// Copyright (C) 2013  Lochner, Juergen
// http://www.thingiverse.com/Ablapo/designs
//
// This program is free software. It is
// licensed under the Attribution - Creative Commons license.
// http://creativecommons.org/licenses/by/3.0/
//////////////////////////////////////////////////////////////////////////////////////////////

// Choose object to print
print_object=1;  // [1:Plate,2:Tube_Element,3:End_Pat,4:End_Mat]

// Clearance:
cl=0.2 ;

// Element's height:
e_height=30;

// Tube's radius:
e_radius=8;

// Cone's slope
c_slope=9;

// Tube's minimum thickness:
c_base=1.4;

// Details:
$fn=88+0;

// Cone height:
c_height=3+0;

// String hole radius:
c_hole=1.5+0;

// spacing of the internal top cone cut:
c_hut=1.5+0;

// Slope of inner top cone:
sangle=1.5;

// Split parts for demonstration?
debug=  false; // [true,false]

///////////////////////////////////////////////////////////////////////////////////
// no longer used parts:
///////////////////////////////////////////////////////////////////////////////////
module invert(height= 12){
	difference(){
		cylinder(h=height,r=e_radius, $fn=120);
		translate([0,0, +0.001]) cylinder(h=height, r1=e_radius-c_base-height/c_slope + cl, r2=e_radius-c_base+cl);
		translate([0,0, -0.001]) cylinder(h=height, r2=e_radius-c_base-height/c_slope + cl, r1=e_radius-c_base+cl);
	}
}

module cone_uturn (height=6){
	difference(){
		cylinder(h=height  , r2=e_radius-c_base-height/c_slope ,r1=e_radius-c_base );

		translate([0,0, height-0.75])difference(){
			translate([0,0,0])rotate([90,0,0])rotate_extrude(convexity = 10,$fn=12) translate([3, 0, 0]) circle(r = c_hole);
			translate([0,0,+10]) cube([20,20,20],center=true);
		}
 		translate([3,0,height-1])rotate([ 0,0,0])cylinder (h=10.1,r=c_hole, $fn=22);
		translate([-3,0,height-1])rotate([ 0,0,0]) cylinder (h=10.1,r=c_hole, $fn=22);
		translate([4.4,0,height-3])rotate([ 0,0,360/4/2])cylinder (h=10.1,r=c_hole/sin(45), $fn=4);
		translate([-4.4,0,height-3])rotate([ 0,0,360/4/2])cylinder (h=10.1,r=c_hole/sin(45), $fn=4);
	}
}

module cone_openend(height=5){
	 difference(){
		cylinder(h=height  , r2=e_radius-c_base-height /c_slope ,r1=e_radius-c_base );
		translate([2.5,0,0])  cylinder (h=40.1,r=c_hole,center=true,$fn=22);
		translate([-2.5,0,0]) cylinder (h=40.1,r=c_hole,center=true,$fn=22);
	}
}

///////////////////////////////////////////////////////////////////////////////////
// Version 3 parts:
///////////////////////////////////////////////////////////////////////////////////

module element(height=10){
	bocohi=c_height+1; 										// bottom cone cut height
	i_rad=e_radius-c_base-bocohi/c_slope+cl;			// inner tube radius

 	difference(){
		union(){
			cylinder(h=height, r=e_radius, $fn=120);
			translate([0,0,height]) cylinder(h=c_height, r2=e_radius-c_base-c_height/c_slope, r1=e_radius-c_base );
		}
		// cut internal bottom connection cone
		translate([0,0,-0.01]) cylinder(h=bocohi, r2=i_rad, r1=e_radius-c_base+cl,$fn=120);

		// cut center tube cylinder
		cylinder(h=height+ c_height+0.01 -(i_rad-c_hole)*sangle -c_hut, r=i_rad);

		// cut internal top cone
		translate([0,0,height+c_height -(i_rad-c_hole)*sangle - c_hut ])
		cylinder(h=(i_rad-c_hole)*sangle, r1=i_rad, r2=c_hole);

		// cut center string hole
		translate([0,0,-0.1]) cylinder(h=height+c_height+0.3 , r =c_hole);

		if (debug==true) translate([0,-e_radius,-0.1])cube([e_radius*2,e_radius*2,e_height*2+c_height*2] ); 		// debug
	}
}

module end_pat (height=8){
 	difference(){
		union(){
			cylinder(h=height-c_height, r=e_radius, $fn=120);
			translate([0,0,height-c_height]) cylinder(h=c_height, r2=e_radius-c_base-c_height/c_slope, r1=e_radius-c_base );
		}
		translate([ 2.5,0,0]) cylinder (h=40.1,r=c_hole,center=true,$fn=22);
		translate([-2.5,0,0]) cylinder (h=40.1,r=c_hole,center=true,$fn=22);
		if (debug==true) translate([0,-e_radius,-0.1])cube([e_radius*2,e_radius*2,e_height*2+c_height*2] ); 		// debug
	}
}

module end_mat(height= 10){ 							// height=4-8(bottom stability) + c_height (connect, retention)+extra length
	stability=4; // height of bottom

	difference(){
		cylinder(h=height,r=e_radius, $fn=120);			// body
		translate([0,0,height-c_height-1   +0.01]) cylinder(h=c_height+1, r1=e_radius-c_base-(c_height+1)/c_slope + cl, r2=e_radius-c_base+cl);
  		translate([0,0, stability+0.001]) cylinder(h=height-stability, r =e_radius-c_base-(c_height+1)/c_slope + cl );
		translate([2.5,0,0])  cylinder (h=40.1,r=c_hole,center=true,$fn=22);
		translate([-2.5,0,0]) cylinder (h=40.1,r=c_hole,center=true,$fn=22);
		if (debug==true) translate([0,-e_radius,-0.1])cube([e_radius*2,e_radius*2,e_height*2+c_height*2] ); 		// debug
	}
}

///////////////////////////////////////////////////////////////////////////////////
// Part selection:
///////////////////////////////////////////////////////////////////////////////////

module plate(){
	translate([0,0,0]) end_pat();
	translate([e_radius*2.2,0,0]) element(e_height);
	translate([e_radius*2.2/2,e_radius*2.2,0]) end_mat();
}

if (print_object==1) plate();
if (print_object==3) end_pat();
if (print_object==2) element(e_height);
if (print_object==4) end_mat();
```


[User]
Okay, I need a parametric OpenSCAD design for a fan air deflector that attaches directly to a standard computer case fan. I've already got a basic design in mind, and I'm going to try to describe it in detail.

The deflector should screw onto the fan using the same mounting holes the fan uses to attach to a case.  It'll essentially consist of two main parts: a base plate that sits on the fan and attaches to the fan using its existing mounting screws, and a deflecting fin that extends away from the base plate and then angles back towards the fan to direct the airflow in a specific way.

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

*   **`thickness`**:  This is the thickness of all the parts of the deflector, including the base plate and the fin.  I'd like to be able to easily change this for strength.  3mm seems to be a good starting point for my printer.
*   **`fin_height`**: The distance in millimeters that the end of the deflecting fin will extend away from the surface of the fan. This parameter should dictate the *total* height of the fin part, including any spacers/base.
*   **`spacer`**: The distance in millimeters between the bottom of the tilting part of the fin and the top of the fan mount portion. This effectively raises the fin.
*   **`fin_tilt`**:  This is the distance inward (towards the fan) from the base of the fin where the fin curves inwards. Essentially, how far inward towards the center of the fan does the deflector tilt.  This will influence how much the air is redirected. It should be adjustable from 0 to at least 50mm.
*   **`fan_mounting_hole_seperation`**: This is the center-to-center distance between the mounting holes of the fan.  This should be used to calculate the size of the base plate. Most fans follow standards, but I'd like to adjust this in case I need to.
*   **`fan_screw_hole_diameter`**: The diameter of the holes for the fan mounting screws.
*   **`access_hole_diameter`**:  Sometimes it can be hard to tighten the mounting screws with the deflector in place. So, if possible, I want to be able to define a larger diameter opening for access to the mounting screws. This could be 0 if I can screw in from the other side, but should be a separate parameter.

Here's more detail on the geometry:

The base plate should have a circular cutout matching the diameter of the fan, with a solid rim going out to the screw holes and beyond. The screw holes should be placed using the `fan_mounting_hole_seperation` parameter.

The fin should extend out from the base plate, starting with a straight section (the `spacer` distance) and then tilting inwards using the `fin_tilt` and `fin_height` values. The cross-section of the fin should be trapezoidal. It should taper a little for strength.

The design should be mirrored along a line through the center of the fan, so there will be two of these deflector parts, with their flat bases sitting right up against one another.

The design should also include cut-outs to allow access to the screws if the `access_hole_diameter` is greater than 0.

I'm not using any external libraries, so this should just be a single .scad file. I believe that this is pretty well detailed and there are no ambiguous terms.

[Assistant]
fanfin.scad:
```
// Thickness of part surfaces. 3mm will give a robust part.
thickness = 3;
// Distance in mm that fin will go away from the fan.
fin_height = 22;
// Distance in mm between tilt section and mounting section.
spacer = 3;
// Distance into the fan that the fin tilts inward towards the fan.
fin_tilt = 30; // [0:50]
// The center-to-center distance between fan mounting holes, used for sizing the fan mount plate.
fan_mounting_hole_seperation = 81;
// Size of hole for the chassis mount screw.
fan_screw_hole_diameter = 5;
// Diameter in mm of your screw or screwdriver, whichever is larger. Or zero if you can mount from the other side.
access_hole_diameter = 7;

module fan_stand(thickness, space, height, tilt, fan_hole_sep)
{
	// Calculate sizes of parts (some calculations are done below).
	fan_dia = fan_mounting_hole_seperation + 2*fan_screw_hole_diameter;
	// These two are overridden below because OpenSCAD can't assign
	// values inside conditionals.
	mount_width = 2 * fan_screw_hole_diameter + 2 * thickness;
	width = fan_dia/2+thickness/2;

	// =============================== //
	// Fin
	// =============================== //

	module fin(screw_height) {
		adjusted_fin_height = height - space - thickness*2;
		difference() {
			union() {
				// spacer
				translate([0, thickness, 0])
				cube([width, spacer, thickness]);

				// fin
				translate([0, thickness+space, 0])
				rotate([0,90,0])
				linear_extrude(height=width) {
					// Trapazoidal polygon.
					polygon(points=[[0, thickness], [0, 0], [-thickness, 0],
						[-tilt, adjusted_fin_height], [-tilt, adjusted_fin_height+thickness]]);
				}
			}

			// Cut access hole for fan mount screw
			translate([fan_hole_sep/2, 2*thickness + height,screw_height])
			rotate([90,0,0])
			cylinder(h=height+2, r=access_hole_diameter/2, center = false, $fn=100);
		}

	}

	// =============================== //

	module fan_mount(x, y, z, screw_height) {
		difference() {
			cube([x, y, z]);

			// Cut fan mount screw hole
			translate([fan_hole_sep/2, thickness+1, screw_height])
			rotate([90,0,0])
			cylinder(h=thickness+2, r=fan_screw_hole_diameter/2, center = false, $fn=100);
		}
	}

	// =============================== //
	// Assembly
	// =============================== //

	module half_of_mount() {
		// Create half
		union() {
			// Fan mount (conditional accounts for small screw hole).
			if (mount_width < thickness) {
				fan_mount(width, thickness, thickness*3, z/3 * 2);
				fin(z/3 * 2);
			} else {
				fan_mount(width, thickness, mount_width, mount_width/3*2);
				fin(mount_width/3 * 2);
			}
		}
	}

	// Create and join both halves.
	module complete_mount() {
		union() {
			// First half
			half_of_mount();

			// Second half
			mirror([1, 0, 0])
			half_of_mount();
		}
	}

	// Create mount and cut out the air hole.
	difference() {
		complete_mount();

		// Air cutout
		translate([0, thickness*1.5, fan_dia/2 + thickness*1.7]) rotate([90,0,0])
		cylinder(h=thickness*3, r=fan_dia/2, center = false, $fn=100);
	}
}

fan_stand(thickness, spacer, fin_height, fin_tilt, fan_mounting_hole_seperation);

```


[User]
Okay, I'm looking to design a parametric Soma Cube puzzle, along with a box and lid to contain the pieces. I have some existing SCAD files I've been working with, but they're a bit clunky and not as easily adjustable as I'd like. I'd like an AI to generate a new, cleaner, more parametric OpenSCAD file that incorporates the core functionality of both of my existing files.

Here are the key aspects of the design I need:

**Core Puzzle:**

*   **Unit Cube:** The base unit of the puzzle is a cube. I want to be able to control the size of this unit cube using a parameter called `unit`. This parameter should affect the overall scale of the puzzle pieces.
*   **Soma Pieces:** The puzzle consists of the 7 classic Soma Cube pieces.
*   **Shaving/Inset:** Each piece needs to have a slight inset applied to all sides to account for 3D printing tolerances. I need a parameter, `shaveMM`, to control the depth of this inset. This should be done using a minkowski difference. This inset should be done after each piece is assembled, not to each individual cube.
*   **Individual Piece Selection:** I need to be able to render specific pieces (corner, ess, tee, rightsnake, leftsnake, angle, ell), or all the pieces simultaneously. I expect to have a string parameter called `part` which controls which pieces are generated.
*   **Piece Positioning:** The pieces should be positioned in a somewhat arbitrary way in the positive x, y quadrant for easy visual inspection and 3d printing.

**Box and Lid:**

*   **Box:** I need a box to contain all the assembled Soma Cube pieces. The internal dimensions of the box should accommodate the 3x3x3 assembled cube. The box should have a thickness parameter, `boxThickness`, to control the wall thickness of the box. The box should have a parameter, `part`, which when set to "box" generates the box. The box should have an internal volume that fits a complete assembled soma cube with internal dimensions exactly 3*unit in each direction.
*   **Lid:** I need a lid that fits on top of the box. The lid should have an overlap to ensure it stays on the box. The lid should also have the same thickness parameter `boxThickness` which controls the lid's vertical thickness and overlap. The lid should have a parameter, `part`, which when set to "lid" generates the lid. The lid should fit onto the box with tight tolerances, and the lid should overlap the box by exactly `boxThickness` in the x and y direction. The lid should have an overall height that is exactly `3*boxThickness`.

**Parametric Design Requirements:**

*   **Parameters:** I want the following parameters to be easily adjustable: `unit`, `shaveMM`, `boxThickness`, and `part`.
*   **Units:** All parameters are in millimeters.
*   **Clear Code:** The code needs to be well-commented and easy to understand, avoiding hardcoded values as much as possible.
*   **Minkowski Difference:** Use a minkowski sum/difference to create the insets for the pieces.
*   **Clarity:** Define the individual modules for each of the pieces, the box, and the lid. Make sure the module names are clear.
*   **Error handling:** Handle an incorrect string input for the `part` variable gracefully.

**Libraries:**

I am not using any additional libraries or functions from included libraries. Please use only native OpenSCAD commands.

**Output:**
I am looking for a single .scad file which can generate all the required pieces, box and lid.

Essentially, I'm looking for an OpenSCAD file that is easy to modify to change the overall size of the puzzle, the amount of inset on each piece, the wall thickness of the box, and render a single part or all parts.

I think that covers everything. Let me know if you have any questions!

[Assistant]
SmallSomaCube.scad:
```

//Scalable Soma Cube, by Alejandro Erickson
//Derived from: http://www.thingiverse.com/thing:3784 and http://www.thingiverse.com/thing:11644

//Size of Unit Cubes in mm.  Perhaps unit-shaveMM should be a multiple of your z-layer height
unit = 3;

//Amount to shave off (inset) each piece.  Compensates for small print size.
shaveMM=.1;

part = "all";//[corner,ess,tee,rightsnake,leftsnake,angle,ell,all]

module c()
{
	cube(size=unit, center=true);
}

module bigC()
{
	cube(size=100*unit, center=true);
}

module Shave(){
  for (i = [0 : $children-1])	{
	minkowski(){
	difference(){
		bigC();
		minkowski(){
			difference(){
				bigC();
				child(i);
			}
			cube(size=2*shaveMM, center=true);
		}
	}
	}
}
}

module c1()
{
  translate([0,0,0.5*unit]) Shave() rotate(180,[0,0,1])  union()
  {
    c();
    translate([unit,0,0]) c();
    translate([unit,unit,0]) c();
    translate([unit,0,unit]) c();
  }
}

module c2()
{
translate([0,0,1.5*unit])  //angle
Shave() rotate(180,[0,0,1]) rotate(90,[0,1,0]) union()
  {
    c();
    translate([unit,0,0]) c();
    translate([unit,unit,0]) c();
  }
}

module c3()
{
translate([0,0,0.5*unit])  //ess
  Shave() rotate(180,[1,0,0]) rotate(90,[0,0,1])  union()
  {
    c();
    translate([unit,0,0]) c();
    translate([unit,unit,0]) c();
    translate([2*unit,unit,0]) c();
  }
}

module c4()
{translate([0,0,0.5*unit])
  Shave() rotate(90,[1,0,0])  union()
  {
    c();
    translate([unit,0,0]) c();
    translate([unit,unit,0]) c();
    translate([2*unit,0,0]) c();
  }
}

module c5()
{translate([0,0,0.5*unit])
  Shave() rotate(180,[0,0,1]) union()
  {
    c();
    translate([unit,0,0]) c();
    translate([unit,unit,0]) c();
    translate([unit,unit,unit]) c();
  }
}

module c6()
{translate([0,0,0.5*unit])
  Shave() union()
  {
    c();
    translate([unit,0,0]) c();
    translate([unit,unit,0]) c();
    translate([0,0,unit]) c();
  }
}

module c7()
{
translate([0,0,2.5*unit])
  Shave() rotate(90,[0,1,0])  union()
  {
    c();
    translate([unit,0,0]) c();
    translate([2*unit,unit,0]) c();
    translate([2*unit,0,0]) c();
  }
}

translate([0,0,-shaveMM])
scale(1) rotate(90,[0,0,1])
{
if(part == "all"){
translate([-2*unit,5*unit,0])  c1(); //corner
translate([-2*unit,2*unit,0]) c3(); //ess
translate([0*unit,0*unit,0]) c4(); //tee
translate([0*unit,2*unit,0]) c6(); //rightsnake
translate([1*unit,6*unit,0]) c5(); //leftsnake
translate([3*unit,3*unit,0]) c2(); //angle
translate([3*unit,5*unit,0]) c7(); //ell
}
else if(part == "corner") c1();
else if(part == "ess") c2();
else if(part == "tee") c3();
else if(part == "leftsnake") c4();
else if(part == "rightsnake") c5();
else if(part == "angle") c6();
else if(part == "ell") c7();
}

```
SmallSomaCube_-_box_untested.scad:
```

//Scalable Soma Cube, by Alejandro Erickson
//Derived from: http://www.thingiverse.com/thing:3784 and http://www.thingiverse.com/thing:11644

//Size of Unit Cubes in mm.  Perhaps unit-shaveMM should be a multiple of your z-layer height
unit = 3;

//Amount to shave off (inset) each piece.  Compensates for small print size.
shaveMM=.15;

//Box thickness (for the containing box)
boxThickness = .3;

part = "box";//[corner,ess,tee,rightsnake,leftsnake,angle,ell,all,box,lid]

module somaBox(){
render()
	translate([0,0,0.5*(3*unit+boxThickness)]) difference(){
  		cube(size=[3*unit+2*boxThickness,3*unit+2*boxThickness, 3*unit+boxThickness],center=true);
  		translate([0,0,boxThickness*0.5]) cube(size=3*unit, center= true);
	}
}

module somaLid(){
	render() translate([0,0, 1.5*boxThickness]) difference(){
		cube(size=[3*unit+4*boxThickness+shaveMM, 3*unit+4*boxThickness+shaveMM, 3*boxThickness],center=true);
		translate([0,0,0.5*boxThickness]) cube(size=[3*unit+2*boxThickness+shaveMM, 3*unit+2*boxThickness+shaveMM, 2*boxThickness],center=true);

}
}

module c()
{
	cube(size=unit, center=true);
}

module bigC()
{
	cube(size=100*unit, center=true);
}

module Shave(){
  for (i = [0 : $children-1])	{
	minkowski(){
	difference(){
		bigC();
		minkowski(){
			difference(){
				bigC();
				child(i);
			}
			cube(size=2*shaveMM, center=true);
		}
	}
	}
}
}

module c1()
{
  translate([0,0,0.5*unit]) Shave() rotate(180,[0,0,1])  union()
  {
    c();
    translate([unit,0,0]) c();
    translate([unit,unit,0]) c();
    translate([unit,0,unit]) c();
  }
}

module c2()
{
translate([0,0,1.5*unit])  //angle
Shave() rotate(180,[0,0,1]) rotate(90,[0,1,0]) union()
  {
    c();
    translate([unit,0,0]) c();
    translate([unit,unit,0]) c();
  }
}

module c3()
{
translate([0,0,0.5*unit])  //ess
  Shave() rotate(180,[1,0,0]) rotate(90,[0,0,1])  union()
  {
    c();
    translate([unit,0,0]) c();
    translate([unit,unit,0]) c();
    translate([2*unit,unit,0]) c();
  }
}

module c4()
{translate([0,0,0.5*unit])
  Shave() rotate(90,[1,0,0])  union()
  {
    c();
    translate([unit,0,0]) c();
    translate([unit,unit,0]) c();
    translate([2*unit,0,0]) c();
  }
}

module c5()
{translate([0,0,0.5*unit])
  Shave() rotate(180,[0,0,1]) union()
  {
    c();
    translate([unit,0,0]) c();
    translate([unit,unit,0]) c();
    translate([unit,unit,unit]) c();
  }
}

module c6()
{translate([0,0,0.5*unit])
  Shave() union()
  {
    c();
    translate([unit,0,0]) c();
    translate([unit,unit,0]) c();
    translate([0,0,unit]) c();
  }
}

module c7()
{
translate([0,0,2.5*unit])
  Shave() rotate(90,[0,1,0])  union()
  {
    c();
    translate([unit,0,0]) c();
    translate([2*unit,unit,0]) c();
    translate([2*unit,0,0]) c();
  }
}

translate([0,0,-shaveMM])
scale(1) rotate(90,[0,0,1])
{
if(part == "all"){
translate([-2*unit,5*unit,0])  c1(); //corner
translate([-2*unit,2*unit,0]) c3(); //ess
translate([0*unit,0*unit,0]) c4(); //tee
translate([0*unit,2*unit,0]) c6(); //rightsnake
translate([1*unit,6*unit,0]) c5(); //leftsnake
translate([3*unit,3*unit,0]) c2(); //angle
translate([3*unit,5*unit,0]) c7(); //ell
}
else if(part == "corner") c1();
else if(part == "ess") c2();
else if(part == "tee") c3();
else if(part == "leftsnake") c4();
else if(part == "rightsnake") c5();
else if(part == "angle") c6();
else if(part == "ell") c7();
else if(part == "box") somaBox();
else if(part == "lid") somaLid();
}

```


[User]
Okay, I'd like to design a parametric ammo box with a lid in OpenSCAD, and I'd like it to be easily customizable for different ammo sizes. I have a basic working OpenSCAD file that is included as a starting point, but I'd like a more robust and flexible version.

Here are the requirements for the design:

**Core Functionality:**

*   **Parametric:** The design must be fully parametric, allowing users to easily adjust key dimensions like:
    *   Number of rows and columns for the ammo casings.
    *   Height of the casing holes.
    *   Diameter of the casing holes.
    *   Wall thickness between holes.
    *   Outer wall thickness.
*   **Box & Lid:** The design should include both the box and a separate lid.
*   **Stackable:**  I'd like the lid to be recessed slightly so the bottom of a stacked box can sit inside the recess. The lid should fit snugly on the box, but not require any sort of fastener.
*   **Rounded Holes:** The ammo casing holes should be cylindrical.

**Specific Details from my current file (as a starting point):**

*   I've used a `difference()` operation for the box, starting with a cube and subtracting cylinders to create the holes. This general approach is fine as a starting point.
*   I've also made a lid by creating a second, smaller cube, also using `difference()`, in order to get the snug fit.
*   I'd like to remove the `both` `box` render options. The goal is just to generate a box and lid together.

**Desired Improvements:**

*   **Modularity:** I'd prefer a more modular approach, potentially breaking the design down into separate modules for the box, lid, and even a module for a single casing hole if needed. This will make it easier to understand and modify.
*   **Clearer Variable Naming:** While my current variable names are descriptive, I'm open to more consistent naming conventions.
*   **Stacking Recess:** Currently, the lid does not have a recess to stack boxes on top of each other. The lid should have a recess matching the box's outer dimensions such that stacking is possible. This should be configurable.
*   **Lid Clearance:** Ensure there is a slight gap between the lid and the box to allow easy removal.
*   **Parameter Sanity Checks:** Add basic parameter sanity checks to ensure the dimensions are reasonable (e.g., preventing negative thicknesses, ensuring space for the walls).
*   **User-Friendly Customizer:** While the code should be clear in the editor, the important variables should be easy for non-programmers to change in a customizer (if the platform supports one). This should include short descriptive comments.

**Libraries:**

I am not intending to use any external libraries currently, but feel free to suggest and incorporate appropriate libraries if that would help achieve the design more effectively.

**In summary:**

I need a parametric, stackable ammo box with a lid, with clear, modular code, and a user-friendly customizer. The key features are parametric dimensions, cylindrical holes, a snug-fitting but easily removable lid, and a stacking recess. My existing file should provide a reasonable starting point, but I'm open to more advanced or robust approaches.

[Assistant]
Parametric+Ammo+Box.scad:
```
//Rows of casings
rows = 5;

//Colums of casings
columns = 8;

//Height of the holes in mm
height = 78;

//Diameter of the holes in mm
space= 12.8;

//Wall thickness between holes in mm
wall = 2.5;
//Outerwall additional thickness
oWall = 1;

//renderoptions
both = true;
box = false;

if(both){
	box();
	lid();
}

if(!both){
	if(box){
		box();
		}
	if(!box){
		lid();
		}
}
module box(){
difference(){
	//Main case cube
union(){
	cube([(wall + space) * columns + wall + 2 * oWall+10,(wall + space) *rows + wall + 2 * oWall+10, height]);
translate([4,4,height]){
cube([(wall + space) * columns + wall + 2 * oWall+2,(wall + space) *rows + wall + 2 * oWall+2, 4]);
}
}
	for(r=[0:rows-1]){
		for(c=[0:columns-1]){
			//Inner Hollow Top
			# translate ([c*(space+wall)+wall+oWall+space/2+5,r*(space+wall)+wall+oWall+space/2+5,4]) {
				cylinder(h = height, r=space/2);
			}

		}
	}
translate([6,6,height]){
cube([(wall + space) * columns + wall + 2 * oWall-2,(wall + space) *rows + wall + 2 * oWall-2, 4]);}
}}

module lid(){
translate([0,-(space * rows +  rows * wall * 3),0]){
difference(){
	cube([(wall + space) * columns + wall + 2 * oWall+10,(wall + space) *rows + wall + 2 * oWall+10, 10]);
translate([4,4,4]){
cube([(wall + space) * columns + wall + 2 * oWall+2,(wall + space) *rows + wall + 2 * oWall+2, 8]);}
}
}
}

```


[User]
Okay, I'm looking to design a simple, customizable rocket model using OpenSCAD. I need a parametric design where I can easily adjust the following:

*   **Overall Rocket Height:** I'd like to be able to specify the total height of the rocket.
*   **Rocket Tube Width:** The diameter of the main cylindrical body should be adjustable.
*   **Number of Fins:**  I need to be able to control how many fins the rocket has.

Here's what I envision for the overall structure:

1.  **Body:** The main body should be a cylinder with a flat top.
2.  **Cone:** A cone should be placed at the top of the main body, creating a pointed nose.
3.  **Fins:** The fins should be evenly spaced around the base of the body. Each fin should be a triangle with one side connecting to the rocket body.

I would like the design to keep all dimensions proportional to each other, for example, the height of the cone should scale with the overall rocket height, and the length of the fins should also scale relative to the rocket height. The fins should be placed so that they are all a constant distance from the bottom of the rocket body. Also, the very top of the rocket (the apex of the cone) should be very pointed and not blunted.

Essentially, I want the design to be similar to what's in the attached `learn1.scad` file, but I want it to be more parametric and easier to adjust those three main variables. I don't need any other files or libraries included as I just need the single .scad file for the whole model.

Can you help me generate an OpenSCAD file for this?

[Assistant]
learn1.scad:
```
//Rocket Tube Height
rheight = 80;

//Rocket Tube Width
rwidth = 10;

//Number of Fins
nfins = 5; // [0,1,2,3,4,5,6,7,8,9,10]

//Body
translate([0,0,rheight])
cylinder(0.55*rheight,rwidth,0);

//Cone
cylinder(rheight,rwidth,rwidth);

//N Fin
for (i = [0:nfins-1])
{
	//Rotate the fin around the centre
	rotate([90,0,(360/nfins)*i])translate([rwidth,0,0])//Push it our radius
	{
		//Design each fin
		polygon(points=[[0,0],[0,rheight*0.4],[rheight*0.2,0]],paths=[[0,1,2]]);
	}

}
```


[User]
Okay, I need a custom adapter designed in OpenSCAD. It's for connecting my shop vac to my bandsaw's dust port. Basically, it's a tube with two different diameters, connected by a tapered section.

Here are the specific parameters I need to be able to adjust:

*   **`wallThickness`**: The thickness of the walls of the adapter, in millimeters. This should be consistent throughout.
*   **`insideVacuum`**: The inner diameter of the smaller tube that fits over my shop vac's hose, in millimeters.
*   **`vacuumLength`**: The length of the smaller tube, in millimeters.
*   **`outsideBandsaw`**: The outer diameter of the larger tube that fits into the bandsaw's dust port, in millimeters.
*   **`bandsawLength`**: The length of the larger tube, in millimeters.

The adapter should be constructed like this:

1.  There's a smaller tube on one end, with inner diameter `insideVacuum` and length `vacuumLength`.
2.  There's a larger tube on the other end, with outer diameter `outsideBandsaw` and length `bandsawLength`.
3.  These tubes should be joined by a frustum (cone with the top cut off) where the inner diameter transitions from `insideVacuum` to `outsideBandsaw`, in a smooth way. The frustum should be on the bandsaw side.
4. The total height is not as important but i'd like it to be derived from the specified lengths. The frustum height should be equal to the average height of the tubes. So in other words, if the height of the smaller tube was 40mm and the height of the larger tube was 20mm, the frustum length would be (40+20)/3.

I need this designed using OpenSCAD, and I need all of those parameters to be customizable at the top of the file. I'd like it to use good practices.
I don't need any libraries for this, I think it's simple enough that it can be accomplished without them.

[Assistant]
vacAdapter.scad:
```
//CUSTOMIZER VARIABLES

//How thick your walls are (in mm)
wallThickness = 2;

//The diameter inside the "small" end. Fits over the vacuum.
insideVacuum = 32;
//The length of the tube that fits over the vacuum.
vacuumLength = 45;

//The diameter of the outside of the "large" end. Fits inside something else
outsideBandsaw = 58;
//The length of the larger tube.
bandsawLength=24;

//CUSTOMIZER VARIABLES END

$fn=45;
rotate([0,180,0])
difference() {
  union() {
    translate([0,0,bandsawLength+(vacuumLength+bandsawLength)/3])
    cylinder(r=(insideVacuum/2)+wallThickness, h=vacuumLength);

    translate([0,0,bandsawLength])
    cylinder(r2=(insideVacuum/2)+wallThickness, r1=(outsideBandsaw/2),h=(vacuumLength+bandsawLength)/3);

  cylinder(r=(outsideBandsaw/2), h=bandsawLength);
 }

translate([0,0,bandsawLength+(vacuumLength+bandsawLength)/3-0.5])
#cylinder(r=(insideVacuum/2),h=vacuumLength+1);

  translate([0,0,bandsawLength])
   #cylinder(r2=(insideVacuum/2), r1=(outsideBandsaw/2)-wallThickness,h=(vacuumLength+bandsawLength)/3 );

translate([0,0,-0.5])
#cylinder(r=(outsideBandsaw/2)-wallThickness, h=bandsawLength+1);
 }
```


[User]
Okay, I need to design a bean sprouter that fits inside a standard mason jar ring, and I'd like to make it parametric so I can easily adjust it for different jar and bean sizes.

The basic idea is a disc with a mesh in the center to hold the beans while allowing water to drain and air to circulate. The mesh needs to be created from intersecting slats or bars and there needs to be a short tube that extends upwards to rest on the mason jar ring. Then it also needs a lip extending outwards to allow it to sit nicely in the ring.

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

*   **`ID`**: The inside diameter of the central mesh area. This needs to be slightly smaller than the inside diameter of the mason jar ring.
*   **`OD`**: The outside diameter of the central mesh area and base of the tube.
*   **`tube_h`**: The height of the tube section that extends upwards.
*   **`Mesh`**: The size of the openings in the mesh. This needs to be large enough for water to drain, but small enough to keep the beans in.
*   **`Bar`**: The width of the bars used to create the mesh.
*   **`height`**: The thickness of the mesh disc and the outer lip.
*   **`lid_diam`**: The diameter of the outer disk/lip that rests on the mason jar ring, this is also the outer diameter of the entire piece.

I’d like the mesh to be made of two sets of perpendicular slats/bars. The disc with mesh and the tube should be one piece, and then another lip around the outer edge should be a separate piece so I can have a lip that's a different diameter. Ideally the lip should be generated by the tube module. I'd also like the main part of the design to be generated by a `slats` and a `tube` module that can be called multiple times.

I'm envisioning something like the attached example (sprouter.scad) but with separate modules and more easily adjustable lip generation.

Could you help me generate an OpenSCAD file that implements this?

[Assistant]
sprouter.scad:
```
/* 	Parametric bean/seed sprouter By schlem
	 	5/26/13

A screen to fit inside the ring of a mason
jar, such that water can be introduced and
drained to coax sprouting.  Additionally,
air shold be able to freely ventilate the
jar.

Do it Yourself – How to Sprout
===============================
1. Soak seeds overnight in a bowl with water.
2. The next morning, drain water and rinse with
fresh water once or twice.
3. Place in a sprouting bag, or sprouting jar
without any water. (Should still be humid, not
completely dry.)
4. Every morning and night rinse with fresh
water, to keep the sprouts wet and clean of mold.
5. Ensure the sprouts never dry up, and repeat
process until your desired length or age of sprout.

Much more info:
	http://en.wikipedia.org/wiki/Sprouting

Parametric control over:
-size of insert and related dimensions
-size of screening elements
-size of meshwork in screen
*/

// ***************  First Things ***************

$fn=180*1;

// ***************  Parameters ***************

/*
These dimensions work with a standard Mason Jar and
work well with Mung beans.  You can change the diameter
and mesh size for different jar and bean sizes.

I looked all over the interwebs for a table of sizes
for sproutable seeds and beans.  No dice.  If you find
such, can you post?  Thanks - schlem
*/

//Inside Diam
ID = 51;
//Outside Diam
OD = 56;
//Tube Height
tube_h =8;
//Mesh Size mm
Mesh = 3;
//Screening Size
Bar = 1.5;
//Thickness of Disk and Mesh
height = 2;
//Lid Diam
lid_diam = 68;

/*More info:
//Inside Diam
ID = 51; 	// diameter of inside of tube; ID < OD
//Outside Diam
OD = 56; 	// diameter of outside of tube; OD > ID
//Tube Height
tube_h =8;	// height of tube extending through ring;
//Mesh Size mm
Mesh = 3;	// opening size in mesh mm;
//Screening Size
Bar = 1.5; 	// width of screening elements in mesh mm;
//Thickness of Disk and Mesh
height = 2; // height of mesh and outer disk;
//Lid Diam
lid_diam = 68; 	// diameter of outer disk that ;
			// fits into Mason Jar ring;
*/

// ***************  Top Level code ***************

union()
{
	difference()
	{
		union()
		{
			slats(L=ID, w=Bar, h=height, space=Mesh);
			rotate(a=[0,0,90])
				slats(L=ID, w=Bar, h=height, space=Mesh);
			tube(t_ID=ID, t_OD=OD, t_h=tube_h);
		}
	translate([0,0,-height*.05])
	tube(t_ID=OD, t_OD=OD*1.5, t_h=height*1.1);
	}
tube(t_ID=OD, t_OD=lid_diam, t_h=height);
}

// ***************  Modules ***************

module slats(L=50, w=2, h=2, space=2)
//		 slats(L=ID, w=Bar, h=height, space=Mesh)
{
	translate([0,0,h/2])
	for ( i = [0 : (L/2)/(w+space)] )
		{
	    translate([0, i*(w+space), 0])
			cube([L,w,h], center = true);
		}

	translate([0,0,h/2])rotate([180,0,0])
	for ( i = [0 : (L/2)/(w+space)] )
		{
	    translate([0, i*(w+space), 0])
			cube([L,w,h], center = true);
		}
}

// ***************           ***************

module tube(t_ID=25, t_OD=30, t_h=10)
//		 tube(t_ID=ID, t_OD=OD, t_h=height)
{
	translate([0,0,t_h/2])
	difference()
	{
		cylinder(r=t_OD/2, h=t_h, center = true);
		cylinder(r=t_ID/2, h=t_h*1.1, center = true);
	}

}

// module module(P1=, P2=, P3=){ }

```


[User]
Okay, so I've been playing around with this OpenSCAD file for a while now, and I'd like to see if you can help me create a more robust, parameterized version. Basically, it's a remix of Airtripper's Reel Roller, but I've added support for three bearings and made it more customizable.

Here's a breakdown of what I'm looking for:

**Core Functionality:**

*   **Roller Design:** The main thing is a roller that holds three bearings in a line. These bearings support a spool or rod. The roller should have two side walls with some adjustable width and a connecting channel.
*   **Bearing Mounting:** The bearings need to be mounted in a way that allows for easy replacement. I used a "bushing" system to mount the bearings, but it can be refined.
*   **Screw Mounts:** The design needs mounting holes for screws – specifically, I'm using M3 screws. I want the screw hole positions to be parameterized so the user can adjust them, relative to the bearing positions if possible.
*   **Parameterization:** Everything I've mentioned (and more, see below) needs to be parametric so a user can easily modify it for different bearing sizes, spacing, and other requirements.

**Key Parameters (with my current values for reference):**

*   `bearing_id`: (8) Inner diameter of the bearing.
*   `bearing_od`: (22) Outer diameter of the bearing.
*   `bearing_w`: (7) Width of a single bearing.
*   `number_of_bearings`: (3) Number of bearings in the roller.
*   `bearing_spacing`: (100) Distance between the centers of adjacent bearings.
*  `side_wall_width`: (4) Thickness of the roller's side walls.
*   `bushing_wall_depth`: (8) Radial thickness of the material around the bearings.
*   `no_feet`: (true) A boolean to remove the bottom support structure if you don't want it.
*   `M3_screw_diameter`: (3) Diameter of the M3 screws, so the holes can be calculated for appropriate clearance. The actual hole diameter should be slightly larger than this, maybe 3.4mm to start.

**More Detailed Requirements/Ideas:**

*   **Bushing Design:** The bushing design is important for holding the bearings securely. I'd like to ensure that the bushings have sufficient material to resist forces on the bearings, with a good fit around the bearing OD, but also that the material around the bearing ID is thin enough not to obstruct the bearing. The bushing should sit within a circular recess in the roller housing.
*   **Screw Holes:** The screw holes should allow easy access to secure the roller to another object, and I want to be able to move them around via parameters. Currently, my screw holes are along the centerline and use hulling to create the screw mounting areas, which I'd like to keep. I've also added two M3 screws on each of the roller ends.
*   **Channel Dimensions:** The channel running along the length of the roller (between the side walls) should be a parameter.
*   **OpenSCAD Libraries:** I want to write clean, readable code, and I'm open to using OpenSCAD libraries. I haven't been using any libraries before, but I'm interested in BOSL2 if it seems appropriate for this. Specifically, if you have any recommendations from that, that would be awesome.
*   **Modularity:** The code should be broken into modules for each part of the design, making it easier to understand and modify. Something like a `roller()` module, a `bushing()` module and a `bearing()` module would be nice.
*   **Visualizations:** It would be fantastic if the code included a module to display a single bearing and a single bushing next to the full assembly (e.g. similar to how my code has the `full_model()` and `print_half()` modules, except showing a single component instead of the assembly).

**Specific Concerns:**

*   I want the code to be easy to read and understand, even if someone is new to OpenSCAD. So good commenting would be appreciated.
*   I don't want to rely too much on "magic numbers." If there's a good reason for a value, explain it in the comments (or even better, make it a parameter).

**Final Request:**

Could you generate a parametric OpenSCAD file based on the above requirements? The goal is to make this roller design easily adaptable for different bearing types and sizes, with a well-organized and easy to use code base. I'm mainly focused on the roller, and not really worried about the "reel" in this case, so that can probably be removed.

[Assistant]
roller_remix.scad:
```
// ***************** Remixed From *******************************
// ***************** Airtripper's Reel Roller  ******************

fn=90;
// ## Bearing Dimentions ##
bearing_id = 8;
bearing_od = 22;
bearing_w = 7;

number_of_bearings = 3;
bearing_spacing = 100;
side_wall_width = 4;
bushing_wall_depth = 8;
no_feet = true;

bushing_r = bearing_od/2+bushing_wall_depth;
spool_holder_width = bearing_w*number_of_bearings+side_wall_width*2;
channel_width = bearing_w*number_of_bearings-2;
spool_holder_length = bearing_spacing+bushing_r*2;

//print_half();
full_model();
//bushing();

// ######################     For Printing     ###########################

module print_half() {
	difference() {
		translate([0,0,0]) rotate([0,0,0]) roller();
		translate([0,25,spool_holder_width]) cube([bearing_spacing*2,100,spool_holder_width*2], center=true);
	}
}

// ######################     Full Model     ###########################

module full_model() {
	translate([0,0,0]) rotate([90,0,0]) roller();
	translate([bearing_spacing/2,0,bearing_od/2+bushing_wall_depth]) rotate([90,0,0]) bearing(bearing_id, bearing_od, bearing_w*number_of_bearings);
	translate([-bearing_spacing/2,0,bearing_od/2+bushing_wall_depth]) rotate([90,0,0]) bearing(bearing_id, bearing_od, bearing_w*number_of_bearings);
*%	translate([0,3,118]) rotate([90,0,0]) reel();
}

// ######################     Roller      ###########################

module roller() {
difference() {
union() {
	// ## Roller Body ##
	difference() {
		union() {
			translate([0,(bearing_od/2+bushing_wall_depth)/2,0]) cube([spool_holder_length,bearing_od/2+bushing_wall_depth,spool_holder_width], center=true);
		}
		union() {
			translate([0,25+side_wall_width,0]) cube([spool_holder_length*2,50,channel_width], center=true);
			translate([0,bearing_spacing+side_wall_width+2,0]) cylinder(100, r=bearing_spacing, center=true, $fn=fn*3);
			translate([bearing_spacing/2,bearing_od/2+bushing_wall_depth,0]) cylinder(spool_holder_width, r=13, center=true, $fn=fn);
			translate([-bearing_spacing/2,bearing_od/2+bushing_wall_depth,0]) cylinder(spool_holder_width, r=13, center=true, $fn=fn);

		}
	}
	// ## Screw Housings ##
	for (m = [-1, 1]) {
		for (x = [bearing_spacing/2-bushing_r+4.5, bearing_spacing/2+bushing_r-4.5]) {
			hull () {
				translate([x*m,5,0]) cylinder(spool_holder_width, r=4.5, center=true, $fn=fn);
				translate([x*m,0,0]) cylinder(spool_holder_width, r=4.5, center=true, $fn=fn);
			}
		}
	}

// ## Bearing Axle and Housing##
// ## bushing arguments (id=8, od=22, bw=7, ed=12, b=2, tw=24)
	translate([bearing_spacing/2, bearing_od/2+bushing_wall_depth, 0])
	 bushing(bearing_id, bearing_od, bearing_w, bushing_wall_depth*2, number_of_bearings, spool_holder_width);
	translate([-bearing_spacing/2, bearing_od/2+bushing_wall_depth, 0])
	 bushing(bearing_id, bearing_od, bearing_w, bushing_wall_depth*2, number_of_bearings, spool_holder_width);
}
	// ##Screw Holes ##
	for (m = [-1, 1]) {
		for (x = [bearing_spacing/2+bushing_r-4.5, bearing_spacing/2-bushing_r+4.5]) {
	translate([x*m,5,0]) cylinder(100, r=1.7, center=true, $fn=fn);
	translate([bearing_spacing/5*m,0,spool_holder_width/2-side_wall_width*2]) rotate([90,0,0]) cylinder(100, r=1.7, center=true, $fn=fn);
	translate([bearing_spacing/5*m,0,-spool_holder_width/2+side_wall_width*2]) rotate([90,0,0]) cylinder(100, r=1.7, center=true, $fn=fn);

		}
	}

// ## Cut off Feet
	if (no_feet == true) {
		translate([0,-25,0]) cube([200,50,50], center=true);
	}
}

}

// ######################     Reel      ###########################

module reel() {
	difference() {
		translate([0,0,0]) color("grey") cylinder(6, r=100, $fn=fn*3);
		translate([0,0,-1]) cylinder(8, r=16, $fn=fn*3);
	}

}

// ######################     Bearing      ###########################

//bearing(6, 19, 6);
module bearing(id, od, w) {
	difference() {
		union() {
			translate([0,0,0]) color("red") cylinder(w,r=od/2, center = true, $fs=.1);
		}
		union() {
			translate([0,0,0]) cylinder(w+2,r=od/2-1, center = true, $fs=.1);
		}
	}
	difference() {
		union() {
			translate([0,0,0]) color("red") cylinder(w,r=id/2+1, center = true, $fs=.1);
			translate([0,0,0]) color("black") cylinder(w-0.5,r=od/2-1, center = true, $fs=.1);
		}
		union() {
			translate([0,0,0]) cylinder(w+2,r=id/2, center = true, $fs=.1);
		}
	}
}

// ######################     Bushing      ###########################

module bushing(id=8, od=22, bw=7, ed=12, b=2, tw=22) {
gap = b*bw;
//translate([0,0,0]) bearing(8, 22, 7);
difference() {
	union() {
// ## Axle ##
	difference() {
		translate([0,0,0]) cylinder(tw, r=id/2-0.02, center=true, $fn=fn);
	}
// ## Bearing Support ##
		difference() {
			translate([0,0,0]) cylinder(tw, r=id/2*1.375, center=true, $fn=fn);
			translate([0,0,0]) cylinder(gap, r=od*2, center=true, $fn=fn);
		}
// ## End Caps ##
		difference() {
			translate([0,0,0]) cylinder(tw, r=od/2+ed/2, center=true, $fn=fn);
			translate([0,0,0]) cylinder(gap-2, r=od*2, center=true, $fn=fn);
			translate([0,0,0]) cylinder(gap+2, r=od/2+1, center=true, $fn=fn);
		}
	}

	translate([0,0,0]) cylinder(100, r=1.7, center=true, $fn=fn);
// ## Uncomment for half bushing
//#	translate([-60,-50,0]) cube([120,100,50]);
}
}
// ###################################################################

```


[User]
Okay, I've been working with this OpenSCAD design for a customizable container, and it's pretty cool, but I'm hitting some limitations and I think it could be way better with a truly parametric approach. I want to build it from the ground up so that it's more flexible and easier to modify. I really like the existing file, but I'd like to start fresh with a design that is more robust and cleaner.

Here's what I'm aiming for:

**Core Concept:** A two-part, slip-fit container (a base and a lid) with customizable shapes, sizes, and optional features. I want to retain the basic functionality of the original design but make it more flexible and easier to adjust different aspects of the design.

**Parametric Control (and how I want to control it):**

*   **Container Shape:** Instead of being tied to a specific number of sides, I want to be able to choose between a circle (using `circle()` or a very large value for `$fn`), an ellipse (different x and y radii), or a polygon with a specified number of sides using `polygon()`. I'd like to be able to switch between these with a variable or a drop down menu.
*   **Inner vs. Outer Shape:** The current design uses the same shape for both inner and outer walls, but I want to be able to independently control inner and outer polygon shapes (or radii if it's a circle) for both the lid and the base.
*   **Wall Thickness:**  The thickness of the container walls (outer and inner walls separately) needs to be easily adjusted.
*   **Inner Dimensions:** I want to specify the *inner* width/diameter/radii of the container, not just the outer and then calculating the inner based on the wall thickness. The inner dimensions for both base and cap should be independantly controllable.
*   **Base and Lid Heights:** I want to specify separate heights for the base and the lid.
*   **Slip Fit Tolerance:** I need to be able to adjust the tolerance between the base and lid for a snug fit.
*   **Strap Loop:** I want an optional loop that can be added to the lid, with control over the loop's size (radius/diameter) and thickness. I'd like the option of no loop as well. The location on the lid should be controlled by an angle parameter (degrees).
*   **Text Integration:** I want the ability to add text to either the lid or the base using the `write/Write.scad` library, with full control over the text, its size, extrusion thickness, font, and placement.
*   **Rounded Bottom/Top:** I really like the rounded bottom and top look of the current design. This should be available, with a parameter that dictates how far the rounding extends.

**Specific User Interface Needs:**

I want a user interface that's as intuitive as possible, so I'd like the following structure:

*   A top-level section for selecting the shape for both the inside and the outside (e.g. circle, ellipse, polygon, with dropdown menu).
*   Sections to separately configure the base and the lid with their dimensions and respective shape parameters (for circle: radius, for ellipse: radii x and y, for polygon: number of sides). These sections should also include their specific wall thickness, height, and rounding, plus text placement parameters (x, y, z, rotation angle and whether the text is on the top or side, along with the previously mentioned text parameters.
*   A single section for the general slip-fit tolerance.
*   A section specifically for the strap loop, including toggle on/off, size, thickness, and angle around the center.

**Libraries:** I'm using the `write/Write.scad` library for text.

Could you design a new parametric OpenSCAD file based on these specifications? I want the code to be well-organized and documented so that it's easy for me to understand and modify later. Thanks!

[Assistant]
slip_fit_container.scad:
```
use <write/Write.scad>

/* [Text Options] */
// Text for Top
myIn = "2N2R5";
// Text Size
ts = 10 ;// [1:20]
// Text Extrusion (how far it sticks out)
th = 1.5 ;// [1,1.5,2]
// Text Font (orbitron prints best for me, but feel free to experiment)
tf = "write/orbitron.dxf"; //[write/letters.dxf,write/BlackRose.dxf,write/braille.dxf,write/knewave.dxf,write/orbitron.dxf]

/* [Container Size and Shape] */

// The inside Diameter of the base.
id_width = 12.7 ;// [5:150]
// Height of cap
microh = 37 ;// [10:100]
// Height of base (side without loop)
microhb = 86 ;// [10:150]
// Strap loop size (0 for none)
ring_size = 5 ;// [0:10]
// Loop Thickness
loop_wall = 2; // [1,2,3,4,5]
// Wall width
walls = 2 ;// [.5,1,1.5,2,2.5,3,3.5,4,5,6,7,8,9,10]
// Number of sides (Wall counts >50 not recommended, It will take a long time to render)
fn2 = 50 ;// [3:100]
// Number of sides on inside of container (Wall counts >50 not recommended, It will take a long time to render)
fn1 = 50 ;// [3:100]

// Tolerences to make sure you have a tight fit for cap. I suggest you try it at this setting first then adjust as needed
tol=0.18 ;

/* [Hidden] */

id=id_width/2;

module geoMicroLid()
{
	difference()
	{
		union()
		{
			color("green")
			{
			hull(){
			translate([0,0,microh])
			sphere(r=id+(2*walls),convexity=10,$fn=fn2,center=true);

			translate([0,0,microh/2])
			cylinder(r=id+(2*walls),h=microh,$fn=fn2,center=true);
			}
				difference()
				{
				translate([0,0,microh+id+(2*walls)])
				rotate([90,0,0])
				cylinder(r=ring_size,h=id/4,center=true);

				translate([0,0,microh+id+(2*walls)])
				rotate([90,0,0])
				cylinder(r=ring_size-loop_wall,h=id/4,center=true);
				}
			}

			writesphere(myIn,where=[0,0,microh/2],radius=id+2*walls,h=ts,t=th,font=tf,$fn=fn2,center=true);
		}

		union()
		{

			hull(){
			translate([0,0,microh])
			sphere(r=id+walls+tol,convexity=10,$fn=fn2,center=true);

			translate([0,0,microh/2])
			cylinder(r=id+walls+tol,h=microh,$fn=fn2,center=true);
			}

			translate([0,0,-2*id])
			cube([id*4,id*4,id*4],center=true);

		}

	}

}
module geoMicroBase()
{
	difference()
	{
		union()
		{
			color("green")
			{
			hull(){
			translate([(3*id)+(2*walls),0,microhb])
			sphere(r=id+walls,convexity=50,$fn=fn2,center=true);

			translate([(3*id)+(2*walls),0,microhb/2])
			cylinder(r=id+walls,h=microhb,$fn=fn2,center=true);
			}

			}

		}

		union()
		{
			color("blue")
			{
			hull(){
			translate([(3*id)+(2*walls),0,microhb])
			sphere(r=id+tol,convexity=50,$fn=fn1,center=true);

			translate([(3*id)+(2*walls),0,microhb/2])
			cylinder(r=id+tol,h=microhb,$fn=fn1,center=true);
			}
			color("red",.2)
			translate([(3*id)+(2*walls),0,-2*id])
			cube([id*4,id*4,id*4],center=true);

			}
		}

	}

}

//Print

{
geoMicroLid();
}
{
geoMicroBase();
}
```


[User]
Okay, I'm looking for an improved version of a power supply terminal cover for 3D printers, like the one on Thingiverse by mike_linus, but with more robust customization options.

Here's what I need:

The cover should enclose the exposed screw terminals of a typical 3D printer power supply. It needs to have several cutouts, and I want to be able to adjust their size and position parametrically. I need the design to be in OpenSCAD, and I want to be able to define all dimensions in the top level module.

The core dimensions for the base of the cover should be adjustable, specifically:

*   `base_length`: The long edge of the enclosure.
*   `base_height`: The height of the enclosure.
*   `base_depth`: The depth of the enclosure (how far it extends from the power supply).
*   `base_thickness`: The thickness of the enclosure walls.

I also need parametric control over these cutouts:

*   **Square Switch Cutout:**
    *   `switch_cutout_length`: The length of the rectangular cutout for a square switch.
    *   `switch_cutout_width`: The width of the rectangular cutout for a square switch.
*   **Round Switch Cutout:**
    *   `switch_cutout_radius`: The radius of a circular cutout for a round switch. If this is set to a non-zero value, the square cutout should be disabled.
*   **LED Cutout:**
    *  `led_cutout_radius`: The radius of the cutout for an LED indicator.
*   **12V Wire Grommet Cutout:**
    *   `grommet_cutout_radius`: The radius of the circular cutout for the 12V wires to pass through.
*   **Power Plug Cutout:**
    *   `power_plug_cutout_length`: The length of the rectangular cutout for a power plug.
    *   `power_plug_cutout_width`: The width of the rectangular cutout for a power plug.
*   **Mounting Screw Holes:**
    *   `mounting_screw_hole_cutout_radius`: The radius of the holes for the screws to mount the cover to the power supply. I'd like 4 mounting holes, two on each side.
*   **Power Plug Screw Holes:**
    *   `power_screw_hole_cutout_radius`: The radius of the screw holes for the power plug. I'd like 2 screw holes for this.

I want to be able to control the resolution of the curves for the cylinder holes and similar features.

I’m aiming for a design that’s easy to customize and modify. It'd be great if the design were clear and easy to read, with good commenting.

Please also make sure the new screw retainers are on the outside of the case like the original, but parametric in size, location, and number of retainers. The original had two cylindrical retainers; I'd like to specify how many retainers to use and their spacing.

I'd like the ability to adjust the `safety_margin` value. I think it was originally set to half the `base_thickness`.

Could you generate an OpenSCAD file that incorporates all these features, and does so in a way that’s easy for me to use? I'd also like to use the `BOSL2` library for the design.

[Assistant]
power_supply_cover.scad:
```
/*************************************************************************************************
Power Supply Terminal Cover for the power supply commonly used with the Bukobot and other 3d printers
Author: Mike Thompson (thingiverse: mike_linus)
Modified by: Will Winder (thingiverse: Winder)
Date Last Modified: June 1, 2013
Description: simply change the cutout parameters and depth to suit.
Note: do not change length, height and thickness parameters for the base unless you want to change the core dimensions.
**************************************************************************************************/

//***************************************************************
//don't change these base parameters unless you want to change the core dimensions.
//***************************************************************
/* [Enclosue Size] */
// Long edge of enclosure.

base_length=110;
// Height of enclosure.
base_height=41;

// Deptch of enclosure. Increase this to create more room for your electronics.
base_depth=26;

// Surface thickness of part. 2mm seems to be pretty good.
base_thickness=2;

// Size of hole for cover retaining screws.
mounting_screw_hole_cutout_radius=1;

// Size of hole for power plug screws.
power_screw_hole_cutout_radius=1;

//***************************************************************
//change these cutout parameters to suit you own switch size etc.
//***************************************************************
/* [Cutouts] */
// Square switch cutout - long edge. Set to zero if using a round cutout.
switch_cutout_length=27;
// Square switch cutout - short edge. Set to zero if using a round cutout.
switch_cutout_width=12;

// Round switch cutout radius. Set to zero to use a square cutout. Base depth must be increased depending on the size of your switch.
switch_cutout_radius=0;

// Radius of cutout for LED.
led_cutout_radius=4;
// Radius of cutout for 12v wires.
grommet_cutout_radius=6;

// Square power plug cutout - long edge.
power_plug_cutout_length=28;
// Square power plug cutout - short edge.
power_plug_cutout_width=20;

/* [Hidden] */
hole_resolution=50;
$fn=hole_resolution;

module base(){
union() {
	// 5 sides of the box.
	cube([base_length,base_height,base_thickness]);
	cube([base_thickness,base_height,base_depth]);
	cube([base_length,base_thickness,base_depth]);
	translate([base_length-base_thickness,0,0])cube([base_thickness,base_height,base_depth]);
	// Bottom wall has an 18mm gap at the rear for the terminal area.
	translate([0,base_height-base_thickness,0])cube([base_length,base_thickness,base_depth-18]);

	// (square) Original slot retainers
	//translate([-1,13,base_depth-5])cube([1.5,23,3]);
	//translate([base_length+base_thickness,13,base_depth-5])cube([1.5,23,3]);

	// (cylindrical) New slot retainers.
	translate([0.5,23+13,base_depth-3.6])rotate([90,0,0])
		cylinder(r=1.5, h=23);
	translate([base_length-0.5,23+13,base_depth-3.6])rotate([90,0,0])
		cylinder(r=1.5, h=23);

}
}

safety_margin = base_thickness/2;
difference(){
	base();
	//(square) switch cutout. 9mm away from one side.
	translate([base_length-9-switch_cutout_length,-safety_margin,3])
		cube([switch_cutout_length,base_thickness*2,switch_cutout_width]);

	//(round) switch cutout. Centered 18mm from one side.
	translate([base_length-18, base_thickness+safety_margin, 6+switch_cutout_radius])rotate([90,0,0])
		cylinder(r=switch_cutout_radius, h=base_thickness*2);

	//240v plug cutout. Centered 28mm from one side.
	translate([28-(power_plug_cutout_length/2),3,-safety_margin])
		cube([power_plug_cutout_length,power_plug_cutout_width,base_thickness*2]);

	//led cutout. Centered 8mm from one side.
	translate([8,base_thickness+safety_margin,9])rotate([90,0,0])
		cylinder(r=led_cutout_radius,h=base_thickness*2);

	//12v lead cutout. Shifted 3/5 of the way to one side.
	translate([base_length/5*3,base_height/2,-safety_margin])
		cylinder(r=grommet_cutout_radius,h=base_thickness*2);

	//2x 240v plug screw holes. Hard coded, deal with it!
	translate([7.5,12.75,-safety_margin])
		cylinder(r=power_screw_hole_cutout_radius,h=base_thickness*2);
	translate([48,12.75,-safety_margin])
		cylinder(r=power_screw_hole_cutout_radius,h=base_thickness*2);

	//4x retainer screw holes. 3.5mm away from the top.
	translate([base_length-safety_margin,15,base_depth-3.5])rotate([0,90,0])
		cylinder(r=mounting_screw_hole_cutout_radius,h=base_thickness*3);
	translate([base_length-safety_margin,34,base_depth-3.5])rotate([0,90,0])
		cylinder(r=mounting_screw_hole_cutout_radius,h=base_thickness*3);
	translate([-1-safety_margin,15,base_depth-3.5])rotate([0,90,0])
		cylinder(r=mounting_screw_hole_cutout_radius,h=base_thickness*3);
	translate([-1-safety_margin,34,base_depth-3.5])rotate([0,90,0])
		cylinder(r=mounting_screw_hole_cutout_radius,h=base_thickness*3);
}
```


[User]
Okay, I need a replacement part for a piece of furniture. It's a joint, kind of like a ball and socket, but with a clip. I have the original design as an OpenSCAD file and I want to be able to make adjustments to the dimensions using parameters.

Here's a breakdown of what the part looks like:

**Overall Shape:** It's basically a cylinder with a wider base and a clip feature. Inside, it has a conical hole. There’s also a slot on the side for flexibility.

**Specific Features:**

*   **Base (Socle):**  A flat cylinder at the bottom, wider than the main cylinder.
*   **Main Cylinder (cylindre_exterieur):** The main body of the joint.
*   **Inner Cone and Cylinder (creu_interieur):** A conical hole at the top that transitions into a cylinder going through the main cylinder.
*   **Clip:** A clip feature at the top, made by combining a hull of two circles and a rectangular prism. The clip is partially embedded into the cylinder.
*   **Flex Cut (flex):**  A slot cut out of the side for flexibility, made from a cylinder and a rectangular prism.

**Dimensions (mm) that I want to parameterize:**

*   `hauteur_piece`: Total height of the main cylinder (including base, but not the clip).
*   `diametre_socle`: Diameter of the base.
*   `epaisseur_socle`: Thickness of the base.
*   `diametre_trou`: Diameter of the wider part of the hole.
*   `diametre_trou_sommet`: Diameter of the narrowest part of the hole.
*   `hauteur_cone`: Height of the cone part of the inner hole.
*    `diametre_cylindre`: Diameter of the main cylinder.
*   `hauteur_encoche`: Height of the slot cut out of the side.
*   `largeur_encoche`:  Width of the side slot, and diameter of the cylinder used to create it.
*   `hauteur_clip`: Height of the clip.
*   `largeur_clip`: Width of the clip.
*   `epaisseur_clip`: Thickness of the clip.

**Requested Output:**

I'd like an OpenSCAD file that uses these parameters so I can easily modify the part's dimensions. Please use `$fn=100;` for the resolution to make it smooth. I don’t need to use any external libraries, just standard OpenSCAD features. Can you help me with that?

[Assistant]
Joint_rotule.scad:
```
// Dimensions en mm
hauteur_piece = 11;
diametre_socle = 14.6;
epaisseur_socle = 2;
diametre_trou = 7.8;
diametre_trou_sommet = 6;
hauteur_cone = 3.5;
diametre_cylindre = 9.4;
hauteur_encoche = 7.5;
largeur_encoche = 3;
hauteur_clip = 4;
largeur_clip = 4.5;
epaisseur_clip = .75;

$fn=100; //resolution

module clip(){
intersection(){
translate(v=[0,0,hauteur_piece-hauteur_clip]){
hull(){
linear_extrude(height=1){circle(diametre_cylindre/2+epaisseur_clip);}
linear_extrude(height=hauteur_clip){circle(diametre_cylindre/2);}
}
}

translate(v=[0,0,hauteur_piece-hauteur_clip/2]){
cube([diametre_socle,largeur_clip,hauteur_clip], center=true);
}
}
}

module socle(){cylinder(h=epaisseur_socle,r=diametre_socle/2);}

module cylindre_exterieur(){
	cylinder(h=hauteur_piece,r=diametre_cylindre/2);
}

module cylindre_interieur(){
	cylinder(h=hauteur_piece-hauteur_cone,r=diametre_trou/2);
}

module cone_interieur(){
	translate(v=[0,0,hauteur_piece-hauteur_cone]){
		cylinder(h=hauteur_cone,r1=diametre_trou/2,r2=diametre_trou_sommet/2);
	}
}

module creu_interieur(){
	union(){
		cylindre_interieur();
		cone_interieur();
	}
}

module flex(){
	translate(v=[0,diametre_cylindre/2,hauteur_piece-hauteur_encoche+largeur_encoche/2]){
		rotate(a=90, v=[1,0,0]) {
			cylinder(h=diametre_cylindre,r=largeur_encoche/2);
			translate(v=[-largeur_encoche/2,0,0]){
				cube(size = [largeur_encoche,hauteur_encoche-largeur_encoche/2,diametre_cylindre], center=false);
			}
		}
	}
}

module base(){
	difference(){
		union(){
			cylindre_exterieur();
			socle();
			clip();
		}
		creu_interieur();
		flex();
	}
}

base();

```


[User]
Okay, I'd like to design a customizable hairband using OpenSCAD. I have some specific ideas based on a previous design, and I'd like the new one to be parametric so I can easily tweak it.

Essentially, I want a hairband that curves around the head and has a sort of "C" shaped cross-section. I have a few key parameters in mind.

First, I need to define the **inner diameter** and the **inner height** of the band, which will correspond to the size of the head it needs to fit on. Think of the inner diameter as the horizontal width and the inner height as a rough estimate of the vertical arch across the head. These should both be adjustable.

Next, the band itself will have a **width** (its dimension along the length of the hairband) and a **thickness** (the depth of the "C" shape). Both of these need to be adjustable too. I'd also like to be able to control the **curvature radius** of the "C" cross-section. This affects the overall style and look of the band. I'd like to be able to change all of those dimensions.

I’d also need to control the resolution of the model. Let's have a variable for the number of facets or segments used to create the curves, this will affect the smoothness of the printed result.

I'd like a feature to add a partial brim to the hairband for better adhesion when 3D printing. This should be a simple toggle to turn it on or off.

The final hairband should be created by mirroring half of the band along the x-axis to create a complete circle.

The specific geometric details are as follows. The hair band is built around two concentric rings with radius r1 and r2 (which depend on the inner diameter). These rings are then connected by a linear extruded polygon that has a slight slope (defined by `angle`). There's also a cut-out section that forms part of the C-shaped cross section. The cut out is controlled by an angle `alpha` which is calculated based on the height difference between the top of the hairband and the ring with radius r1. Finally, I use a function to generate the C cross section, the shape of which is created by intersecting a circle with a rectangle and then rotating the shape along the circumference of the ring.

I think the final result should also include a partial brim, which will be a small cube added to one side of the hairband.

To clarify:
* **`inner_diameter`:** The diameter of the inner circle of the hairband, in mm.
* **`inner_height`:** The height of the hairband in mm
* **`width`:** The width of the hairband, in mm
* **`thickness`:** The thickness of the hairband, in mm
* **`curvature_radius`:** The radius of the curve in the "C" cross-section, in mm.
* **`fn`:** The number of facets used for generating curves.
* **`partial_brim`:** A yes/no option to include or exclude a partial brim.
* **Units:** All dimensions are in millimeters, but some might be internally converted to 1/10 of mm before use; please be aware of this.
* **Mirroring:** the hairband should be created by mirroring half a band to make the full shape.
* **Shape:** the hairband should be a rotated version of a linear extruded polygon that has been cut out to form a c-shape.
* **Brim:** The partial brim, when enabled, should be placed at the base of the hairband and angled outwards by a few degrees.

I'm not using any external libraries for this. I think I can get it done with just the built-in functions in OpenSCAD.

[Assistant]
HairBandV1.scad:
```
// Hairband
// Version 1.0
// Luigi Cisana, 12 Jun, 2013

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

inner_diameter=140; // [100:180]

inner_height=145;  // [80:180]

// [unit = 1/10 mm]
width=40;  // [30:200]

// [unit = 1/10 mm]
thickness=30; // [25:50]

// [unit = 1/10 mm]
curvature_radius=25; // [20:400]

// Number of facets, set a low value for a draft version
fn = 120; // [30:200]

// Add Partial Brim (20 x 20 mm)?
partial_brim = "yes"; // [yes,no]

/* [Hidden] */

/****** Init *********/
ir = inner_diameter/2;
ih = inner_height;
wi = width/10;
cr = curvature_radius/10;
tn = thickness/10;

angle = 12;
layer = 0.25;

r1 = ir;
r2 = 2*ir;
s1 = r1+wi;
s2 = r2+wi;

a1 = ir * sin(angle);
a2 = ih-ir-a1;
alpha = atan(a2 / (2*ir));

echo("a1= ", a1, "a2 =", a2, "alpha= ", alpha);

/****** Main *********/
semi_band();
translate ([-0.1,0,0]) mirror ([1,0,0]) semi_band();

/****** Modules ******/
module semi_band() {
	rotate(a=[0,0,angle]) {
		intersection() {
			shap_ring(r1);

			linear_extrude(height = 2*wi, center = true, convexity = 10, twist = 0)
				polygon( points=[[0,0],[-s1,0],[-s1,s1],[s1*tan(angle),s1],[0,0]] );
		}

		translate([ir,0.1,0]) {

			difference() {
				intersection() {
					shap_ring(r2);

					linear_extrude(height = 2*wi, center = true, convexity = 10, twist = 0)
						polygon( points=[[0,0],[-s2,0],[-s2,-s2*tan(alpha)],[0,0]] );
				}

				rotate(a=[0,0,alpha]) translate([-r2,0,0])
				difference() {
					cube(size=[2*tn,2*tn,2*wi],center=true);
					translate([-tn,tn,0]) cylinder(h=2*wi,r=tn,center=true,$fn=50);
				}
			}

			if (partial_brim == "yes") {
		 		rotate(a=[0,0,180+alpha-12]) translate([r2-10,0,-wi/2]) cube(size=[20,20,layer],center=false);
			}
		}
	} // rotate
} // semi_band

module shap_ring(radius) {
	rotate_extrude(convexity = 10,$fn=fn) translate([radius+tn-cr, 0, 0]) {
		intersection() {
			circle(r = cr,$fn=fn);
			translate ([-tn+cr,-wi/2,0]) square ([tn,wi], center=false);
		}
	}
}

```


[User]
Okay, I need a custom sword hilt design generated in OpenSCAD. I have a basic structure already but I want to make some significant modifications, and make it fully parametric.

The hilt is basically a cylinder with a hollowed-out center, so it's a ring.  Currently, it has a rounded outer edge created using a rotate_extrude. I would like to keep that. There are two lines of text, one on top and one at the bottom, both on the flat top surface.

Here's what I need changed/implemented:

1.  **Single Text Line on Top:** I only want one line of text on the top surface of the hilt. Get rid of the hilt_textL1 line. The current text `hilt_textL1 = "Rutgers Kendo Club";` should be removed, so that a single line can be set.
2.  **Enlarged Text on Top:**  I want the single line of text on top to be bigger and more prominent. Currently it's too small. Make the size a parameter. The parameter should include the text size height, and text thickness of the text.
3.  **Bottom Text:** Keep the bottom text (hilt_textL3). I like its location and orientation and parameters.
4.  **Parametric Dimensions:** Make all the main dimensions parametric, like the outer diameter, inner diameter, and thickness. Let's make the round over radius a parameter too.
5. **Parametric Text:** Make the text on the top surface and bottom surface parametized so that the text can be changed.
6. **Hilt Text Thickness and Height:** Parametize the hilt text thickness and height for both the top and bottom text.
7. **Text spacing:** Parametrize the text spacing for both the top and bottom text
8. **Remove hard coded numbers.** Remove any hard coded numbers from the design to improve flexibility.

The current design uses a `writecylinder` function, which seems to come from a library. Please use the same library, whatever that may be. It also does not specify the library at the top, so I am not sure what library it is.

The current code has variables for `thickness`, `outer_diameter`, and `inner_diameter` - these should be kept and made more accessible to the user for customization.

So, to summarize, I need:

*   A cylindrical hilt with a rounded outer edge.
*   One parametric line of text on the top surface, and one line of text at the bottom surface of the hilt.
*   All dimensions and text properties (size, text, spacing, etc.) controlled by parameters.
*   The `writecylinder` functionality from the current setup.
*   No hard coded numbers.

Can you generate the OpenSCAD file for this, using the library that provides `writecylinder` ?

[Assistant]
Customizer_sword_hilt_raised.scad:
```

// Hilt Text line1
hilt_textL1 = "Rutgers Kendo Club";

// Hilt Text line3 at bottom
hilt_textL3 = "KendoKa Name";

// Hilt Thickness
thickness = 7.5;
// Hilt Outer Diameter
outer_diameter = 78;
// Hilt Inner Diameter
inner_diameter = 32;

//use <Write.scad>
use <write/Write.scad>

union () {
difference () {
cylinder(r=outer_diameter/2-thickness/2,h=thickness);
translate([0,0,-0.25]) cylinder(r=inner_diameter/2,h=thickness+1);}
union () {
writecylinder(hilt_textL1,[0,0,0],(inner_diameter/4+outer_diameter/4)+5,thickness,h=6,t=2,face="top",space=1);

writecylinder(hilt_textL3,[0,0,0],(inner_diameter/4+outer_diameter/4)+4,thickness,face="top",ccw=true,h=6,t=2,space=1);

}
translate([0,0,thickness/2]) rotate_extrude () translate([outer_diameter/2-thickness/2,0,0]) circle(r=thickness/2);
}

```


[User]
Okay, I'm looking to design a custom, reusable cup sleeve for my Starbucks reusable cup. I've been frustrated with the flimsy cardboard sleeves, and I want something more durable and stylish. I'm also interested in being able to generate new sleeves with different geometric designs. I've seen some cool patterns based on repeated shapes, so that’s the kind of direction I’m interested in.

Here's what I'm looking for in terms of parameters:

**Cup Dimensions:**

*   I need to be able to specify the bottom diameter, top diameter, and height of the cup. For my specific Starbucks reusable cup, I've measured these to be about 59.5mm for the bottom diameter, 82mm for the top diameter, and 135mm for the height (and please note that height is the vertical distance between those two diameter measurements). I'd like to be able to easily change these values for other cup sizes in the future.

**Sleeve Properties:**

*   **Thickness:**  I need to be able to control the sleeve's thickness, probably in the range of 1-4mm.
*   **Border:**  I want to control the height of a simple band at the top and bottom of the sleeve.  It should be adjustable between 1 and 30mm.
*   **Sleeve Height:**  I'd like to specify the height of the main patterned part of the sleeve as a percentage of the total cup height. I’m thinking a range from 10% to 95% would be useful.
*  **Z Offset:** I also need a way to move the sleeve up or down on the cup via a z-axis offset, so I can fine tune the positioning.

**Pattern Properties:**

*   **Line Thickness:** I want to specify the thickness of the lines used to create the geometric pattern. This should be between 1 and 4mm.
*   **Sides:** The repeating shape should be based on some kind of polygon. I need to be able to define the number of sides. This should allow a reasonable range of values, like 3 to 20.
*   **Size:** I want a parameter to control the size of the repeating shapes, maybe between 1 and 20.
*   **Overlap:** I need a parameter to control how much the shapes overlap, say from 0 to 10.
*   **Spin:** I'd like each shape in the pattern to be able to rotate about its center. I’m thinking an angle of rotation within the range of -90 to 90 degrees.
*   **Pattern Spin:** Finally, I want the entire pattern to be able to “spiral” up the cup rather than stacking directly on top of each other, from 0 to 10.

**Other Features:**

*   **Color:** It’d be nice to specify a color for the sleeve, using the standard OpenSCAD color names (like "aqua", "red", "black", etc).
*   **Preview and Final Render:** I need the file to have a variable which allows me to easily toggle between a preview render that shows both the cup and the sleeve, and a final render that only shows the sleeve.
*   **Resolution:** I need the file to have a resolution variable so I can control the smoothness of curves in the final render.

I'd like the sleeve to be designed as a parametric OpenSCAD file. I don’t want to use any external libraries, since that feels like it will make it harder to share with other people who aren't familiar with OpenSCAD.

Can you generate the OpenSCAD file for this sleeve design?

[Assistant]
CupSleeve_v2_alt2.scad:
```

//Start with Cup Dimensions - these are for a Starbucks $1 Reusable Cup
bottom_diameter=59.5;
top_diameter=82;
//Make sure the height is measured as the distance between your top and bottom radius measurements!
height=135;

//Now some basic properties of your sleeve
color="aqua"; //[black,silver,gray,white,maroon,red,purple,fuchsia,green,lime,olive,yellow,navy,blue,teal,aqua,brown,sienna]
thickness=2; //[1:4]
border=3; //[1:30]
sleeve_height_percent=95;//[10:95]
//Use this to move the sleeve up or down on the cup
sleeve_z_offset=0;

//And finally the pattern variables...
line_thickness=4;
sides=6;//[3:20]
size=18;//[1:20]
overlap=5;//[0:10]
//This is the spin of each shape about its center
spin=22.5;//[-90:90]
//This is the amount the pattern is made to "spiral" around the cup, vs. stack straight up
pattern_spin=9;//[0:10]

part=1;//[1:Render,2:Final]

////////////////////////////////

bottom_radius=bottom_diameter/2;
top_radius=top_diameter/2;
rb=bottom_diameter/2+thickness;
rt=top_diameter/2+thickness;
h=height;
lt=line_thickness;
sh=sleeve_height_percent/100*h;
szo=sleeve_z_offset;

res=30;

theta=atan((rt-rb)/h);
count=24-size;
thetac=360/count;
rpb=rb*3.14/count;
rp=rpb*(1+overlap*.2);

rows=round(h/(2*rpb));
echo(rows);
echo(count);
echo(theta);

if(part==2)sleeve();

if(part==1){
	cup();
	sleeve();
}

module sleeve(){
	color(color)union(){
		intersection(){
			cupwall();

			translate([0,0,h/2+szo])cylinder(r=rt*2,h=sh,center=true);

			for(i=[0:rows]){
				rotate([0,0,thetac*i/2*pattern_spin/10])
				translate([0,0,2*rpb*i])
				ring();
			}
		}

		intersection(){
			cupwall();
			translate([0,0,szo+(h-sh)/2])cylinder(r=rt*2,h=border,$fn=res);
		}

		intersection(){
			cupwall();
			translate([0,0,h-border+szo-(h-sh)/2])cylinder(r=rt*2,h=border,$fn=res);
		}
	}
}

module cup(){
	color("white")difference(){
		union(){
			translate([0,0,-.1])cylinder(r1=bottom_radius+.1,r2=top_radius+.1,h=h+.2,$fn=res);
			translate([0,0,h+.2-2.5])cylinder(r=top_radius+1.5,h=2.5,$fn=res);
		}
		translate([0,0,6])cylinder(r1=bottom_radius-1,r2=top_radius-1,h=h+.2,$fn=res);
		translate([0,0,-.2])cylinder(r=bottom_radius-1,h=5,$fn=res);
	}
}

module ring(){
	for(i=[0:count-1])
	rotate([0,0,i*thetac]){
		translate([0,0,rb*tan(theta)+rpb])
		rotate([-90-theta,0,0])
		rotate([0,0,spin])
		difference(){
			cylinder(r1=lt,r2=2*rp,h=2*rb,$fn=sides);
			translate([0,0,-.05])cylinder(r1=0,r2=2*rp-lt,h=2*rb+.1,$fn=sides);
		}
	}
}

module cupwall(){
	difference(){
		cylinder(r1=rb,r2=rt,h=h,$fn=30);
		translate([0,0,-.05])cylinder(r1=bottom_radius,r2=top_radius,h=h+.1,$fn=res);
	}
}

```