[User]
Okay, I'm looking for help designing a customizable bracelet for dual-extrusion 3D printers. I've seen some similar designs, but I need it to be parametric so I can easily adjust the size and customize it with text.

Here’s what I need:

*   **Basic Shape:** The bracelet should be a flexible, segmented ring. It will be made of two rings: an inner and an outer ring connected by flexible sections or "spikes." The segments should leave gaps between sections.
*   **Inner and Outer Radius:** I need to be able to set the inner and outer radii of the bracelet in millimeters.
*   **Length (Height):** The bracelet should have a height (thickness), which I'd also like to be able to define in millimeters.
*   **Number of Segments:** The number of flexible segments connecting the inner and outer rings needs to be adjustable.
*   **Nozzle Diameter:** I need to be able to input my 3D printer's nozzle diameter (in mm). This should affect the widths of the flexible sections and the spacing between parts.
*   **Custom Text:** I want to be able to add custom text to the *outside* of the bracelet.
*   **Text Thickness:** I need to set how thick the text is (as a multiple of the nozzle diameter).
*   **Dual Extrusion:** The bracelet should be designed for dual extrusion. I want to have the option to generate three STL files:
    1.  One for the "base" bracelet (the inner and outer rings with connecting segments).
    2.  One for the text.
    3.  One for both together.
*   **OpenSCAD:** I need the design in OpenSCAD.
*   **Libraries:** I'll be using the `MCAD/fonts.scad` library for text generation

Can you help me create an OpenSCAD file that can do all of this? The existing code I have defines a variable called 'part' that takes the values "bracelet", "text", or "together" to define which of the three STLs will be generated. I'd like to maintain this functionality.

[Assistant]
customizable_dual_flexible_bracelet_v06.scad:
```
//Dual extrusion version of custumizable_flex_bracelet

//part to view. Bracelet, text, or together. On creation of STL an stl for these 3 parts will be generated.
part = "bracelet"; // [bracelet, text, together]

//inner radius of the bracelet in mm
inner_radius = 28; //[15:150]

//outer radius of the bracelet in mm
outer_radius = 33; //[15:150]

//length (=height) of the bracelet in mm
length = 15;  // [5:60]

//diameter of your 3d printer nozzle in mm. This number relates to the thickness and hole sizes
nozzlediam = 0.4;

//number of sections on bracelets
sections = 25; //[15:60]

//text to put on bracelet
text = "Ingegno.be";

//text thickness as amount of nozzle
text_thickness = 4;  //[2:10]

use <MCAD/fonts.scad>

module test(){
  echo("test");
}

nozzle = 2*nozzlediam;

baseheight = 0.8;
r1 = inner_radius;
r2 = outer_radius;
n = sections;
gapin=2*nozzle;
gapout = 3*nozzle;
alpha = 2*PI/sections;
alpha_1 = alpha - gapin/r1;
beta = 2*PI/sections;
beta_1 = alpha - gapout/r2;
alpha_2 = gapin/r1;
beta_2 = gapout/r2;
alpha_3 = nozzle/r1;
beta_3 = nozzle/r2;

fudge = 0.01;

//process the text, we have beta_1 for the symbol, use beta_2 for border!
thisFont=8bit_polyfont();
x_shift=thisFont[0][0];
y_shift=thisFont[0][1];
theseIndicies=search(text,thisFont[2],1,1);
wordlength = (len(theseIndicies));

factorygap = 3;
scale_x = (beta_1-beta_2) * r2 / x_shift;
scale_y = (length - factorygap*gapout) / y_shift;
thicknessword = text_thickness * nozzlediam;

// Create the Text
module alltext() {
    for( j=[0:(len(theseIndicies)-1)] )
      rotate([0, 0, (3/2*beta_2 + (beta_1-beta_2)/2 + j* beta)*180/PI])
      translate([r2 -1.5* nozzle, -(beta_1-beta_2) * r2 /2 , factorygap/2*gapout])
      rotate([90,0,90])
        {
        scale([scale_x,scale_y,1]){
          linear_extrude(height=thicknessword)
            polygon(points=thisFont[2][theseIndicies[j]][6][0],paths=thisFont[2][theseIndicies[j]][6][1]);
        }
      }
}

module innerholes() {
  union() {
    for (i = [0:n-1]){
      rotate([0,0,(-alpha_1/2 + i* alpha)*180/PI])
        translate([r1,0,0])
          cube(size=[3*nozzle,r1*(alpha_2+alpha_3), 3*length], center=true);
    }
  }
}

module spikes() {
  linear_extrude(height=length) { union(){
    for (i = [0:n-1]){
      polygon(points = [ [r1*cos((-alpha_1/2 + i* alpha-alpha_2/2)*180/PI),
                          r1*sin((-alpha_1/2 + i* alpha-alpha_2/2)*180/PI)],
                         [r2*cos((2*beta_2/2 + (i-1)* beta)*180/PI),
                          r2*sin((2*beta_2/2 + (i-1)* beta)*180/PI)],
                         [r2*cos((2*beta_2/2 + (i-1)* beta-beta_3)*180/PI),
                          r2*sin((2*beta_2/2 + (i-1)* beta-beta_3)*180/PI)],
                         [r1*cos((-alpha_1/2 + i* alpha-alpha_2/2-alpha_3)*180/PI),
                          r1*sin((-alpha_1/2 + i* alpha-alpha_2/2-alpha_3)*180/PI)]
                         ],
                   paths = [ [0,1,2,3]]);
    }
  }}
  linear_extrude(height=length) { union(){
    for (i = [0:n-1]){
      polygon(points = [ [r1*cos((-alpha_1/2 + i* alpha+alpha_2/2+alpha_3)*180/PI),
                          r1*sin((-alpha_1/2 + i* alpha+alpha_2/2+alpha_3)*180/PI)],
                         [r2*cos(((i)* beta+beta_3)*180/PI),
                          r2*sin(( (i)* beta+beta_3)*180/PI)],
                         [r2*cos(( (i)* beta)*180/PI),
                          r2*sin(( (i)* beta)*180/PI)],
                         [r1*cos((-alpha_1/2 + i* alpha+alpha_2/2)*180/PI),
                          r1*sin((-alpha_1/2 + i* alpha+alpha_2/2)*180/PI)]
                         ],
                   paths = [ [0,1,2,3]]);
    }
  }}
}

module outerholes() {
  union() {
    for (i = [0:n-1]){
      rotate([0,0,(beta_2/2 + i* beta)*180/PI])
        translate([r2-nozzle,0,0])
          cube(size=[3*nozzle, gapout, 3*length], center=true);
    }
  }
}

module outercirc(){
  difference(){
    cylinder(h=length, r=r2, $fn=100);
    translate([0,0,-fudge]) cylinder(h=length+2*fudge, r=r2-nozzle, $fn=100);
    outerholes();
  }
}

module innercirc(){
  difference(){
    cylinder(h=length, r=r1+nozzle, $fn=100);
    translate([0,0,-fudge]) cylinder(h=length+2*fudge, r=r1, $fn=100);
    innerholes();
  }
}

module baseform(){
  union(){
    outercirc();
    innercirc();
    spikes();
  }
}

rotate([0,0,-90]){
  if (part == "together") {
    union(){
      color("DarkSalmon")
      baseform();
      color("Orange")
      alltext();
      }
    }
  if (part == "bracelet") {
    //this is actually equal to holes == yes
    color("DarkSalmon")
    difference(){
      baseform();
      alltext();
      }
    }
  if (part == "text") {
    color("Orange")
    alltext();
    }
}

```


[User]
Okay, I'd like to design a screw-top box, similar to the one I found on Thingiverse, but I want a bit more control over the design.

Essentially, it’s a cylindrical box with a screw-on lid. The key features are:

*   **Cylindrical Body & Lid:**  The main shape is a cylinder, with the top portion acting as the screw-on lid and the bottom portion as the base.
*   **Screw Mechanism:** The lid attaches to the base using a screw-thread mechanism formed by petals. These petals are a key design feature.
*   **Customizable Text/Logo:**  I need the ability to add text (or a simple logo) to the bottom of the box, recessed into the base. The text should be rendered using a font provided in the MCAD library.
*   **Clearance:** It should be possible to add a small amount of clearance between the screw threads to make sure that the box is printable with less variation needed from the printer's calibration.

Here’s a breakdown of the parameters I’d like to control, along with some initial ideas:

*   **`thickness`**: The thickness of the box walls. (e.g., 3mm)
*   **`diam`**: The overall diameter of the box. (e.g., 40mm)
*   **`height`**: The height of the inside of the box (the usable space). (e.g., 45mm)
*   **`screwh`**: The height of the screw part (the petals). This should be less than `height`. (e.g., 45mm)
*   **`screw_twist`**: The amount of twist applied to the screw petals over their height, in degrees (e.g., 100 degrees).
*   **`screwpetals`**: The number of petals forming the screw thread. (e.g., 3)
*   **`logotext`**: The text to place on the bottom of the box. (e.g., "Ingegno.be")
*   **`letterheight`**: Height of the letters in the text. (e.g. 12mm)
*   **`reinforce`**: A yes/no option for adding reinforcement to the petals.
*   **`clockwise`**: A yes/no option to control the direction of the screw thread.
*   **`baseh`**: The height of the base of the box. (e.g., 3mm). The sum `height - screwh + baseh` should be at least 5mm.
*   **`res`**: The resolution for the cylinders and other curves, in other words, number of facets in a cylinder. (e.g., 80)
*   **`clearance`**: The clearance between petals, measured in degrees. (e.g., 0)

**Key Design Details:**

*   The text/logo should be inset into the base of the box.
*   The screw threads should transition smoothly at the base and top.
*   If `reinforce` is set to "yes", the petals should have small, triangular reinforcement structures.

**Libraries to use:**
*   The MCAD library (specifically the `fonts.scad` file)
*  The utils/build_plate.scad for the build plate helper

Could you provide an OpenSCAD file that allows me to customize all of these parameters? I'd like the generated file to be fully parametric. The way that this is done in the provided code is sufficient and ideal.

[Assistant]
screwbox_v03.scad:
```
// Licence: Creative Commons, Attribution
// Created: 02-03-2013 by bmcage http://www.thingiverse.com/bmcage

// An attempt to reproduce a screw box that nicely closes

//thickness of the cup in mm
thickness = 3;  //[1:5]

//diameter of the box in mm
diam = 40;    //[25:200]

//height of the inside box in mm
height = 45;   // [4:200]

//height of the screw part in mm
//Make sure this is less than height!
screwh = 45;   // [4:200]

//amount of twist of the screws over the screw height in degrees
screw_twist = 100;  // [0:200]

//number of petals for the screw part
screwpetals = 3; // [2:6]

//text to but at bottom
logotext = "Ingegno.be";

//height letters in mm. Width spans the cap, added spaces to make letters smaller in width, use this setting for height.
letterheight = 12;   //[4:50]

//in case you want dualstrusion used for the text, the text only is given as a part
part = "box";  //[text, box]

//add reinforcement to the petals or not
reinforce = "yes";   // [yes, no]

//rotate petals clockwise or anti-clockwise
clockwise = "no";  // [yes, no]

//height of the base. Make sure you have sufficient grip to open the box, and the base is sufficiently strong to hold contents of the box. height-screwh+baseh should be 5mm or more.
baseh = 3;         //[2:5]

//resolution, if cylinders appear blocky, increase the resolution. Note that high values lead to long rendering times
res = 80;

//Add some clearance between petals if they are too connected when creating a box. This is expressed in degrees. A good printer should work fine leaving this 0, using some sand paper to have good rotation. But if you print at layers of 0.4 mm, set this to 1 or 2.
clearance = 0;

use <utils/build_plate.scad>;
use <MCAD/fonts.scad>

//for display only, doesn't contribute to final object
build_plate_selector = 0; //[0:Replicator 2,1: Replicator,2:Thingomatic,3:Manual]

//when Build Plate Selector is set to "manual" this controls the build plate x dimension
build_plate_manual_x = 100; //[100:400]

//when Build Plate Selector is set to "manual" this controls the build plate y dimension
build_plate_manual_y = 100; //[100:400]

build_plate(build_plate_selector,build_plate_manual_x,build_plate_manual_y);

//code begins, dummy module to indicate this
module test(){
  echo("test");
}

//process the text, we have diam-4 for the symbol, use beta_2 for border!
thisFont=8bit_polyfont();
x_shift=thisFont[0][0];
y_shift=thisFont[0][1];
theseIndicies=search(logotext,thisFont[2],1,1);
wordlength = (len(theseIndicies));

factorygap = 3;
lettersize_x = (diam-4)/(wordlength+2);
scale_x =  lettersize_x / x_shift;
scale_y = letterheight / y_shift;
textheight = thickness/3;

module logo(){
  mirror([-1,0,0])
  translate([-diam/2+1.5*lettersize_x,-letterheight/2,-0.01])
    for( j=[0:(len(theseIndicies)-1)] )
      translate([j*lettersize_x, 0 , 0])
        {
        scale([scale_x,scale_y,1]){
          linear_extrude(height=textheight)
            polygon(points=thisFont[2][theseIndicies[j]][6][0],paths=thisFont[2][theseIndicies[j]][6][1]);
        }
      }
}

module base() {
  cylinder(r=diam/2, h=baseh, $fn=res);
}

realheight = height+baseh;  //base is added to inner box height
screwstart = height+baseh-screwh;

module box() {
  difference() {
    cylinder(r=diam/2, h=screwstart, $fn=res);
    translate([0,0,-0.01]) cylinder(r=diam/2-thickness, h=screwstart+0.02, $fn=res);
  }
}

stopperheight = 4;
stoppergap = 0.2;
stopperthickness = 2;

module stopper(){
  union() {
  translate([0,0,screwstart])
   difference() {
    cylinder(r=diam/2-thickness-stoppergap, h=stopperheight, $fn=res);
    translate([0,0,-0.01]) cylinder(r=diam/2-thickness-stopperthickness, h=stopperheight+0.02, $fn=res);
    }
  translate([0,0,screwstart-2*thickness/3])
   difference() {
    cylinder(r=diam/2-thickness+0.2, h=2*thickness/3, $fn=res);
    translate([0,0,-0.01]) cylinder(r1=diam/2-thickness-0.01,r2=diam/2-thickness-stopperthickness, h=2*thickness/3+0.02, $fn=res);
    }
  }
}

module wedge_180(r, d)
{
	rotate(d) difference()
	{
		rotate(180-d) difference()
		{
			circle(r = r, $fn=res);
			translate([-(r+1), 0, 0]) square([r*2+2, r+1]);
		}
		translate([-(r+1), 0, 0]) square([r*2+2, r+1]);
	}
}

module wedge(r, d)
{
	if(d <= 180)
		wedge_180(r, d);
	else
		rotate(d) difference()
		{
			circle(r = r, $fn=res);
			wedge_180(r+1, 360-d);
		}
}

module screwprofile(r, count) {
	angle = 360/count;

	union() {
		// "petals"
		for (i=[1:count]) {
			rotate([0,0,angle * i+clearance/2]) difference(){
           wedge(r = r, d=angle/2-clearance-0.01);
           rotate([0,0,-0.005]) wedge(r=r-thickness, d=angle/2-clearance);
           }
		}
	}
}

reinf_thick = 3;
module reinforceprofile(r, count) {
	angle = 360/count;
   anglereinf = 360/12;

	union() {
		// "petals"
		for (i=[1:count]) {
			rotate([0,0,angle * i+angle/4-anglereinf/4]) difference(){
           wedge(r = r-thickness+0.01, d=anglereinf/2-0.01);
           rotate([0,0,-0.005])wedge(r=r-thickness-reinf_thick, d=anglereinf/2);
           }
		}
	}
}

module petals(){
  union() {
  translate([0,0,screwstart-0.01])
  if (clockwise == "no") {
    linear_extrude(height = screwh, twist=screw_twist*-1, convexity = 10, $fn=res){
      screwprofile(diam/2, screwpetals);
      }
  } else {
    linear_extrude(height = screwh, twist=screw_twist, convexity = 10, $fn=res){
      screwprofile(diam/2, screwpetals);
      }
  }
  if (reinforce == "yes") {
   translate([0,0,screwstart-0.01]) {
    difference() {
     if (clockwise == "no") {
      linear_extrude(height = screwh, twist=screw_twist*-1,
                     convexity = 10){
        reinforceprofile(diam/2, screwpetals);
        }
     } else {
      linear_extrude(height = screwh, twist=screw_twist,
                     convexity = 10){
        reinforceprofile(diam/2, screwpetals);
        }
     }
     //remove the top part
     translate([0,0,screwh-stopperheight-0.2])
       cylinder(r=diam/2-thickness, h=stopperheight+0.2+0.02);
     //taper off at the bottom
     translate([0,0,-2/3*thickness]) cylinder(r1=diam/2-thickness-0.01,r2=diam/2-thickness-2*stopperthickness, h=2*2*thickness/3+0.02, $fn=res);
    }
   }
  }
  }
}

module sharpedgetop(r, count) {
  angle = 360/count;
  unsharp = angle/20;
  translate([0,0,realheight-4])
   linear_extrude(height = 4+0.01, convexity = 10)
   union() {
     for (i=[1:count]) {
       if (clockwise == "no") {
			rotate([0,0,angle * i+screw_twist+angle/2-unsharp])
           difference(){
             wedge(r=r+1, d=angle/4);
             rotate([0,0,-0.1]) wedge(r=r/2, d=angle/4+0.2);
           }
       } else {
			rotate([0,0,angle * i-screw_twist-angle/2+angle/4+unsharp])
           difference(){
             wedge(r=r+1, d=angle/4);
             rotate([0,0,-0.1]) wedge(r=r/2, d=angle/4+0.2);
           }
       }
     }
   }
}

module sharpedgebase(r, count) {
  angle = 360/count;
  unsharp = angle/20;
  translate([0,0,screwstart-0.01])
   linear_extrude(height = 4+0.01, convexity = 10)
   union() {
     for (i=[1:count]) {
       if (clockwise == "no") {
			rotate([0,0,angle * i+angle/4+unsharp])
           difference(){
             wedge(r=r, d=angle/4);
             rotate([0,0,-0.005]) wedge(r=r-thickness, d=angle/4+0.01);
           }
       } else {
			rotate([0,0,angle * i-unsharp])
           difference(){
             wedge(r=r, d=angle/4);
             rotate([0,0,-0.005]) wedge(r=r-thickness, d=angle/4+0.01);
           }
       }
     }
   }
}

if (part == "box") {
union() {
  difference() {
    base();
    logo();
  }
  stopper();
  box();
  difference() {
    petals();
    sharpedgetop(r=diam/2, count=screwpetals);
    }
  sharpedgebase(r=diam/2, count=screwpetals);
}
} else {
  logo();
}

```


[User]
Okay, I'm looking to create a bracelet design that's similar to the "Cylinders Bracelet" but I want it to be more flexible and comfortable, and easier to customize. I really like the idea of the jingly, rattly noise, and the interlocking segments.

Here's what I'm thinking:

**Core Concept:**

*   The bracelet should be made of interconnected segments, each consisting of concentric cylinders. The outer cylinder should be larger, and the inner cylinder should be smaller with a gap in between. These should be connected by struts.
*   I'd like to keep the noise element, so the internal cylinders shouldn't be too tightly constrained inside their housing within the segment.

**Key Parameters I Need to Control:**

*   **Wrist Diameter:** This is the *inside* diameter of the bracelet, so it can be scaled to fit different wrist sizes.
*   **Outer Cylinder Diameter:** I need to be able to adjust the diameter of the outer cylinder of each segment.
*   **Cylinder Height:** The height of the cylinders, effectively making the bracelet wider or thinner.
*   **Wall Width:** The thickness of the cylinder walls in the segments.
*   **Gap:** The space between the outer cylinder and inner cylinder.
*   **Strut Count:** I want to control the number of struts connecting the cylinders per segment.
*   **Strut Width:** The width of the struts.
*   **Strut Height:** The height/thickness of the struts.
*   **Include Opening Segment:** A boolean parameter to toggle an openable segment or not.
*   **Cylinder Spacing:** The target center-to-center distance between the cylinders in the ring formation.
*   **Tolerance:** I need a tolerance variable to create a looser fit where cylinders overlap, probably for a difference() operation.
*   **Strut Vertical Gap:** The gap between the struts and the outer cylinder on the top and bottom.
*   **Strut Horizontal Gap:** The gap between the struts and the outer cylinder on the sides.

**Functionality:**

*   The segments should be arranged in a ring, with each segment rotated around a circle. The rotation should be calculated from the number of cylinders.
*   The first segment should be offset to make the cylinder alignment look nice.
*   If the "include opening segment" option is enabled, the last segment should have an opening gap using a partial cut-away of the segment, making it so that the bracelet can open up. This segment needs to be calculated to be wide enough to be opened.
*   I need to be able to vary the $fa and $fs of the generated parts.

**Desired Changes from Original Design:**
*   I would like the bracelet to be more flexible than the original design. One way to accomplish this may be to reduce the height of the struts.

**Specific OpenSCAD Request:**

I would like you to generate an OpenSCAD file with the above parameters. It should have good commenting and be well organized, making it easy for me to understand and adjust. Please use descriptive variable names. I expect to tweak parameters and render the model many times, so a flexible and well-parameterized design is essential.

Are you able to generate an OpenSCAD file for me with the requirements and parameters above? I don't need any external libraries for this specific request.

[Assistant]
cylindersBracelet.scad:
```
// Cylinders bracelet
// Paul Murrin - Feb 2013

// Diameter of wrist in mm (inside diameter of bracelet)
wrist_diameter = 54;
// diameter of outer cylinder (mm)
cylinder_size = 8 ;	//[8:small, 10:medium, 12:large]
// (mm)
height = 10;			// [5:15];
// (mm)
wall_width = 0.8;
// (mm) between outside and inside cylinders. Needs to be big enough that the small cylinders can freely move within the larger one.
gap = 2.8;
// number of struts joining big and small cylinders (use 1 for height less than 10mm)
num_struts = 2;
// include_opening_segment
include_opening_segment=1; // [1:yes, 0:no]

tol = 0.05 + 0;
pi = 3.1415926 + 0;
radPerDeg = 360 / (2*pi);

// Dimensions of the ring formed by the segments
ring_rad =  (wrist_diameter + cylinder_size) / 2;
ring_circumf = 2*ring_rad*pi;

inside_cyl_dia = cylinder_size-wall_width-gap;
desired_cylinder_spacing = cylinder_size*1.15;	// center-to-center spacing of the cylinders

num_cylinders = floor(ring_circumf/desired_cylinder_spacing);
cylinder_spacing = ring_circumf / num_cylinders;
angle = 2*pi*radPerDeg / num_cylinders;

// Work out the angle to offset the first segment so the cylinders line up
d = ring_rad*(1/cos(angle/2) - cos(angle/2));
offset_angle = atan(d / (cylinder_spacing/2));

// Struts joining segments
strut_oversize = 1 + 0;							// additional length to ensure strut meets cylinder properly
strut_length = cylinder_spacing - cylinder_size/2 - inside_cyl_dia/2 + strut_oversize;
strut_height = (height - 4) / (num_struts+1);
strut_width = 1.2 + 0;
strut_gap_v = 1.4 + 0;							// vertical gap around where the strut goes through the outer
strut_gap_h = 1.4 + 0;							// horizontal gap around where the strut goes through the outer
strut_spacing = height / (num_struts+1);			// Spacing between struts
gap_angle = angle;

$fa = 6+0;
$fs = 0.2+0;

module segment()
{
	union()
	{
		// Outer cylinder
   		difference()
		{
			cylinder(h=height, r=cylinder_size/2, center=false);
			cylinder(h=height+tol, r=cylinder_size/2-wall_width, center=false);
			rotate([0,0,-gap_angle])
				for(n=[1:num_struts])
					translate([cylinder_size/2, 0, n*strut_spacing])
						cube(size=[cylinder_size, strut_width+strut_gap_h, strut_height+strut_gap_v], center=true);
		}
		// Inner cylinder
		translate([-cylinder_spacing, 0, 0]) difference()
		{
			cylinder(h=height, r=inside_cyl_dia/2, center=false);
			cylinder(h=height+tol, r=inside_cyl_dia/2-wall_width, center=false);
		}
		// struts
		for(n=[1:num_struts])
		{
			translate([-strut_length/2-cylinder_size/2+strut_oversize/2, 0, n*strut_spacing])
				cube(size = [strut_length, strut_width, strut_height], center=true);
		}
	}
}

module openingSegment()
{
	gapSpanAngle = 360 * ( (strut_width) / (pi*cylinder_size));
	difference()
	{
		segment();
		rotate([0,0,-(gap_angle+gapSpanAngle)])
		{
			for(n=[1:num_struts])
				translate([cylinder_size/2, 0, n*strut_spacing])
					cube(size=[cylinder_size, strut_width, strut_height+strut_gap_v], center=true);
			translate([cylinder_size/2, 0, (num_struts)*strut_spacing/2-tol])
				cube([cylinder_size, strut_width+0.5, (num_struts)*strut_spacing], center=true);
		}
	}
}

for (n=[1:(num_cylinders-1)])
	rotate([0, 0, (n-1)*angle])
		translate([0, ring_rad, 0])
			rotate([0,0,offset_angle])
				segment();
rotate([0, 0, (num_cylinders-1)*angle])
	translate([0, ring_rad, 0])
		rotate([0,0,offset_angle])
			if(include_opening_segment==1)
				openingSegment();
			else
				segment();

```


[User]
Okay, I need an OpenSCAD file to generate customized measuring cups. I've got an idea based on a previous design, and I want to make it easy to adjust the size.

Essentially, the cup should be a cylinder with the height and diameter based on the volume specified. I'd like to be able to pick common cup sizes (like 1/8, 1/4, 1/2, etc. up to a full cup), or specify a custom volume in milliliters. The wall of the cup should have a defined thickness, and I want a handle attached to the side.

Here's what I'm thinking for parameters, and the general idea:

**Parameters:**

*   **`volume`:** A pre-defined volume selection, in cups, with options like 1/8, 1/4, 3/8, 1/2, 5/8, 3/4, 7/8, and 1 cup. Should also have an option to select "Custom". These correspond to 29.57ml, 59.15ml, 88.72ml, 118.30ml, 147.87ml, 177.44ml, 207.02ml, and 236.59ml, respectively.
*   **`custom_volume_in_milliliters`:** If "Custom" is selected for `volume`, this should be the volume in ml. It should default to 15ml, with a range up to 500ml.
*   **`wall_thickness`:** The thickness of the cup's wall, in mm. Default should be 5mm, with a range of 1 to 8mm.
*   **`handle_width`:** The width of the handle, in mm. Default to 15mm, with a range from 10 to 20mm.
*   **`handle_length`:** The length of the handle, in mm (not including the end-cap). Default to 60mm, range of 15-80mm.
*  **`hanger_hole_hole_diameter`**: The diameter of the hole in the end of the handle, for hanging the measuring cup. Default is 4mm, from 0-5mm.
* **`handle_thickness`:** Thickness of handle, default should be 3mm. This should be a multiplier value - 3 * wall thickness.
*   **`DETAIL`:** Resolution of cylinders, should be adjustable, with a default of 50 and a comment about rendering speed vs print quality.

**Calculations:**

The cup should be a cylinder where the height equals the diameter. The volume of a cylinder is V = pi \* r^2 \* h, and since the height and diameter should be equal, h = 2r and V = pi \* (h/2)^2 \* h = pi \* (h^3)/4, thus h = cuberoot(4V/pi), and radius = h/2. There's a simplified version of h used here - h = 6.8278 * pow(v, 1/3) which I'd like to use, which I know simplifies h=cube_root(v) / cube_root(pi) * 10 from the original calculation I was using to get the same values. I'd like to apply this.

**Handle Design:**

The handle should be a flat bar extending from the side of the cup. It should also have a rounded end-cap. It should have a hole for hanging at the rounded end. I would like a slight chamfer where the handle attaches to the cup, using 2 cylinders, rotated 90 degrees. I'd like to keep that part relatively small.

**General Notes:**

I'd like comments in the code that roughly match the comments in the original design I sent, explaining the various calculations and parts. And, please also include `echo()` statements that report the volume, height, and radius of the cup being generated for verification.

Also, if the user selects a predefined size using the `volume` parameter, then the calculations should use the associated milliliter value and not recalculate it. For example, if the user selects "1/4 Cup" for the `volume` parameter, then it should calculate the cup's dimensions using 59.15ml.

I don't need any external libraries, just the core OpenSCAD functions. I want to make sure I can share this without any extra dependencies.

Could you provide that for me?

[Assistant]
measuring_cup.scad:
```
// Customized Measuring Cup
// v 1.0
//
// (C) Copyright 2013, Brian Enigma, some rights reserved.
//
// Customized Measuring Cup by Brian Enigma is licensed under a Creative Commons
// Attribution-ShareAlike 3.0 Unported License.
//
// - http://netninja.com
// - http://www.thingiverse.com/BrianEnigma

/*
Calculation Notes:

Cups       Cups (Reduced)      ml
~~~~       ~~~~~~~~~~~~~~      ~~
1/8        1/8     0.125       29.57
2/8        1/4     0.25        59.15
3/8        3/8     0.375       88.72
4/8        1/2     0.5         118.30
5/8        5/8     0.625       147.87
6/8        3/4     0.75        177.44
7/8        7/8     0.875       207.02
8/8        1       1           236.59

Volume of cylinder = pi * r^2 * h

If we make radius and height the same:

v = pi * h^2 * h = pi * h^3

solve for h

h = cube_root(v) / cube_root(pi) * 10 = 6.8278 * cube_root(v)

h = 6.8278 * pow(v, 1/3)
*/

// Pick a predefined volume or select "Custom" to pick your own
volume = 59.15; // [29.57:1/8 Cup, 59.15:1/4 Cup, 88.72:3/8 Cup, 118.30:1/2 Cup, 147.87:5/8 Cup, 177.44:3/4 Cup, 207.02:7/8 Cup, 236.59:1 Cup, 0:Custom]
// If using a custom volume, pick a value
custom_volume_in_milliliters = 15; // [15:500]

// The thickness of the scoop wall
wall_thickness = 5; // [1:8]

// width of handle
handle_width = 15; // [10:20]

// length of handle (actually, not including the end-cap)
handle_length = 60; // [15:80]

// The diameter (in mm) of the hole in the handle
hanger_hole_hole_diameter = 4; // [0:5]

handle_thickness = 3 * 1;

// resolution of cylinders -- 10 makes for quick renders, higher makes for good prints
//DETAIL = 30 * 1;
DETAIL = 50 * 1;
//DETAIL = 100 * 1;

module handle(outer_wall_radius, handle_thickness, handle_width, handle_length, hanger_hole_hole_diameter)
{
    difference()
    {
        union()
        {
            // flat handle part
            translate(v = [0, handle_width / -2, 0])
            	cube(size = [handle_length + outer_wall_radius - handle_width / 2, handle_width, handle_thickness]);
            // flat cap at end of handle
            translate(v = [handle_length + outer_wall_radius - handle_width / 2, 0, 0])
            	cylinder(h = handle_thickness, r = handle_width / 2, $fn = DETAIL);
			// curved handle part
            translate(v = [0, 0, handle_thickness])
				scale(v = [1, 1, 0.5])
					rotate(a = [0, 90, 0])
            			cylinder(h = handle_length + outer_wall_radius - handle_width / 2, r = handle_width / 2, $fn = DETAIL);
			// curved cap at end of handle
            translate(v = [handle_length + outer_wall_radius - handle_width / 2, 0, handle_thickness])
				scale(v = [1, 1, 0.5])
           			sphere(r = handle_width / 2, $fn = DETAIL);

        }
    	// subtract out hanger hole
    	translate(v = [handle_length + outer_wall_radius - handle_width / 2, 0, -1])
    		cylinder(h = handle_thickness * 10, r = hanger_hole_hole_diameter / 2, $fn = DETAIL);
	}
}

module build_measuring_cup(volume, height, radius, handle_thickness, handle_width, handle_length, handle_hole_diameter)
{
	echo(str("Building measuring cup with volume ", volume, "ml, height ", height, "mm, radius ", radius, "mm."));
	translate(v = [((radius + wall_thickness) / 2 + handle_length) / -2, 0, 0]) // slide over to be better centered on the table
		difference()
		{
			union()
			{
				// Outer cylinder
			    cylinder(h = height + wall_thickness, r = radius + wall_thickness, $fn = DETAIL);
				// Handle braces
				translate(v = [radius + wall_thickness, handle_width / 2, 0])
					rotate(a = [90, 0, 0])
						cylinder(h = 4, r = 8, $fn = DETAIL);
				translate(v = [radius + wall_thickness, handle_width / -2 + 4, 0])
					rotate(a = [90, 0, 0])
						cylinder(h = 4, r = 8, $fn = DETAIL);
				// Handle
				handle(radius + wall_thickness, handle_thickness, handle_width, handle_length, handle_hole_diameter);
			}
			// Subtract out inner cylinder
			translate(v = [0, 0, -1])
		    	cylinder(h = height + 1, r = radius, $fn = DETAIL);
			// Subtract out anything below the floor (e.g. leftover bits of the handle brace)
			translate(v = [radius * -2, (radius * 4) / -2, -50])
				cube(size = [radius * 2 + handle_length * 3 + 100, radius * 4, 50]);
		}
}

if (0 == volume)
{
	echo("Building custom measuring cup");
	build_measuring_cup(
		custom_volume_in_milliliters,
		6.8278 * pow(custom_volume_in_milliliters, 1/3),
		6.8278 * pow(custom_volume_in_milliliters, 1/3),
		handle_thickness,
		handle_width,
		handle_length,
		hanger_hole_hole_diameter);
} else {
	echo("Building predefined measuring cup");
	echo(str("Test: ", pow(volume, 1/3)));
	build_measuring_cup(
		volume,
		6.8278 * pow(volume, 1/3),
		6.8278 * pow(volume, 1/3),
		handle_thickness,
		handle_width,
		handle_length,
		hanger_hole_hole_diameter);
}

```


[User]
Okay, I'd like to design a modular block system for 3D printing, and I'm thinking of using OpenSCAD. I want to be able to print individual blocks that can connect together with dovetail joints, so I can build shelves or other structures. I've already got the basic idea of how the connections should work, but I need a flexible parametric design.

Here's what I envision:

*   **Block Types:** I need to be able to choose from a variety of block types, controlling which sides have dovetail connectors:
    *   "4 Way Connector": Connectors on all four sides.
    *   "3 Way Connector A": Connectors on three sides (e.g., top, left, and right).
    *   "3 Way Connector B": Connectors on three different sides (e.g., bottom, left, and right).
    *   "2 Way Connector A": Connectors on two opposite sides (e.g., left and right).
    *   "2 Way Connector B": Connectors on two adjacent sides (e.g., top and left).
	*   "2 Way Connector C": Connectors on two adjacent sides (e.g., bottom and left).
	*    "2 Way Connector D": Connectors on two adjacent sides (e.g., bottom and right).
    *   "1 Way Connector A": Connector on one side (e.g., left).
	*   "1 Way Connector B": Connector on one side (e.g., top)
    *   "No Connectors": No connectors on any side.
*   **Parameters:** I need to be able to customize these aspects of the block:
    *   `square_size`:  The length of a side of the main square block (in mm).
    *   `wall_thickness`: The thickness of the block's walls (in mm). This will be constant regardless of which sides have connectors.
    *   `depth`: The depth of the block (in mm).
    *   `back_wall`: A boolean option for whether or not the block has a back wall ("yes" or "no").
    *   `bevel`: A boolean option for whether or not the back of the block has a bevel ("yes" or "no"). The dovetail connectors should also have a bevel on the back, regardless of the back_wall setting.
    *   `connector_clearance`: The clearance between the connectors of adjacent blocks. Increasing this will make the connection looser; decreasing it will make the connection tighter.

*   **Dovetail Connectors:** The connectors should be dovetailed. The female side should be created by subtracting from a base block shape, and the male side should be created by also subtracting from a slightly larger block shape.
*   **Printability:** The maximum overhang of the dovetail should be 45 degrees so the blocks can be printed without support.
*   **Visual Aids:** Include a build plate visual using the `build_plate` module from the `utils` library to help see the blocks in the context of a print bed. I'll handle adding that library to my project separately, don't include it in the main response. I'll also want to see the default output in a southeast view and a top tilt.

Could you write an OpenSCAD file that implements all of this? I think I've covered all of my requirements for now. Thanks!

[Assistant]
modularBlocks2.scad:
```
use <utils/build_plate.scad>

// Select a type of block to make
1_type = "4 Way Connector"; // [4 Way Connector,3 Way Connector A,3 Way Connector B,2 Way Connector A,2 Way Connector B,2 Way Connector C,2 Way Connector D,1 Way Connector A,1 Way Connector B,No Connectors]
// Size of square in mm
2_square_size = 50;
// Thickness of walls in mm
3_wall_thickness = 2;
// Depth of block in mm
4_depth = 50;
// Do you want a back wall on the block?
5_back_wall = "no";//[yes,no]
// Do you want a bevel on the back of the block?
6_bevel = "yes";//[yes,no]
// Clearance between connectors in mm? Increase to make looser fits, decrease to make tighter fits.
7_connector_clearance = .25;

type =1_type;
square_size =2_square_size;
wall_thickness = 3_wall_thickness;
depth = 4_depth;
back_wall = 5_back_wall;
bevel = 6_bevel;
connector_clearance = 7_connector_clearance;

grid_size = square_size;
CC = connector_clearance;
off = wall_thickness/grid_size;
backWallOffset = back_wall == "yes" ? 1 : -1;
shape = type;
grid_pattern = bevel;
dif = connector_clearance/grid_size/4;
adif = dif*1.70710678118;

//for display only, doesn't contribute to final object
build_plate_selector = 0; //[0:Replicator 2,1: Replicator,2:Thingomatic,3:Manual]

//when Build Plate Selector is set to "manual" this controls the build plate x dimension
build_plate_manual_x = 100; //[100:400]

//when Build Plate Selector is set to "manual" this controls the build plate y dimension
build_plate_manual_y = 100; //[100:400]

build_plate(build_plate_selector,build_plate_manual_x,build_plate_manual_y);

// preview[view:south east,tilt:top]
makeShape(shape);

module makeShape(shape){
	color("Blue")
	difference(){
		difference(){
			linear_extrude(height=depth, convexity = 10)
			scale([grid_size,grid_size,1])
			if (shape == "1 Way Connector B") square1B();
			else if (shape == "1 Way Connector A") square1A();
			else if (shape == "2 Way Connector D") square2D();
			else if (shape == "2 Way Connector C") square2C();
			else if (shape == "2 Way Connector B") square2B();
			else if (shape == "2 Way Connector A") square2A();
			else if (shape == "3 Way Connector B") square3B();
			else if (shape == "3 Way Connector A") square3A();
			else if (shape == "4 Way Connector") square();
			else if (shape == "No Connectors") square0();
			cuttingGrid();
		}
		difference(){
			translate([0,0,backWallOffset*wall_thickness])
			linear_extrude(height=depth*2, convexity = 10)
			scale([grid_size,grid_size,1])
			if (shape == "1 Way Connector B") offSquare1B();
			else if (shape == "1 Way Connector A") offSquare1A();
			else if (shape == "2 Way Connector D") offSquare2D();
			else if (shape == "2 Way Connector C") offSquare2C();
			else if (shape == "2 Way Connector B") offSquare2B();
			else if (shape == "2 Way Connector A") offSquare2A();
			else if (shape == "3 Way Connector B") offSquare3B();
			else if (shape == "3 Way Connector A") offSquare3A();
			else if (shape == "4 Way Connector") offSquare();
			else if (shape == "No Connectors") offSquare0();
			if (grid_pattern == "yes"){
				translate([0,0,wall_thickness])
				cuttingGrid();
			}
		}
		if (grid_pattern == "yes") cuttingGrid();
	}
}

module cuttingGrid(){
	rotate([0,0,90])
	rotate([90,0,0])
	translate([0,0,-grid_size*1.05])
	linear_extrude(height=grid_size*2.1, convexity = 10)
	scale([grid_size,grid_size,1])
	polygon(points = [ [-1,-1],[-1,.65],[0,-.35],[1,.65],[1,-1]],paths = [[0,1,2,3,4]]);

	rotate([90,0,0])
	translate([0,0,-grid_size*1.05])
	linear_extrude(height=grid_size*2.1, convexity = 10)
	scale([grid_size,grid_size,1])
	polygon(points = [ [-1,-1],[-1,.65],[0,-.35],[1,.65],[1,-1]],paths = [[0,1,2,3,4]]);
}

module square0() {
	polygon(points = [ [-.5,-.5],
						[.5,-.5],
						[.5,.5],
						[-.5,.5]],paths = [[0,1,2,3]]);
}

module offSquare0() {
	polygon(points = [ [-.5+off,-.5+off],
						[.5-off,-.5+off],
						[.5-off,.5-off],
						[-.5+off,.5-off]],paths = [[0,1,2,3]]);
}

module square1B() {
	polygon(points = [ [-.5,-.5],[-.1-dif,-.5],[-.2-adif,-.4+dif],[.2+adif,-.4+dif],[.1+dif,-.5],
						[.5,-.5],
						[.5,.5],
						[-.5,.5]],paths = [[0,1,2,3,4,5,6,7]]);
}

module offSquare1B() {
	polygon(points = [ [-.5+off,-.4+off],
						[.5-off,-.4+off],
						[.5-off,.5-off],
						[-.5+off,.5-off]],paths = [[0,1,2,3]]);
}

module square1A() {
	polygon(points = [ [-.5,-.5],
						[.5,-.5],
						[.5,.5],
						[-.5,.5],[-.5,.1-dif],[-.6+dif,.2-adif],[-.6+dif,-.2+adif],[-.5,-.1+dif]],paths = [[0,1,2,3,4,5,6,7]]);
}

module offSquare1A() {
	polygon(points = [ [-.5+off,-.5+off],
						[.5-off,-.5+off],
						[.5-off,.5-off],
						[-.5+off,.5-off]],paths = [[0,1,2,3]]);
}

module square2D() {
	polygon(points = [ [-.5,-.5],[-.1-dif,-.5],[-.2-adif,-.4+dif],[.2+adif,-.4+dif],[.1+dif,-.5],
						[.5,-.5],
						[.5,.5],
						[-.5,.5],[-.5,.1-dif],[-.6+dif,.2-adif],[-.6+dif,-.2+adif],[-.5,-.1+dif]],paths = [[0,1,2,3,4,5,6,7,8,9,10,11]]);
}

module offSquare2D() {
	polygon(points = [ [-.5+off,-.4+off],
						[.5-off,-.4+off],
						[.5-off,.5-off],
						[-.5+off,.5-off]],paths = [[0,1,2,3]]);
}

module square2C() {
	polygon(points = [ [-.5,-.5],[-.1-dif,-.5],[-.2-adif,-.4+dif],[.2+adif,-.4+dif],[.1+dif,-.5],
						[.5,-.5],
						[.5,.5],[.1+dif,.5],[.2+adif,.4-dif],[-.2-adif,.4-dif],[-.1-dif,.5],
						[-.5,.5]],paths = [[0,1,2,3,4,5,6,7,8,9,10,11]]);
}

module offSquare2C() {
	polygon(points = [ [-.5+off,-.4+off],
						[.5-off,-.4+off],
						[.5-off,.4-off],
						[-.5+off,.4-off]],paths = [[0,1,2,3]]);
}

module square2B() {
	polygon(points = [ [-.5,-.5],
						[.5,-.5],[.5,-.1+dif],[.6-dif,-.2+adif],[.6-dif,.2-adif],[.5,.1-dif],
						[.5,.5],
						[-.5,.5],[-.5,.1-dif],[-.6+dif,.2-adif],[-.6+dif,-.2+adif],[-.5,-.1+dif]],paths = [[0,1,2,3,4,5,6,7,8,9,10,11]]);
}

module offSquare2B() {
	polygon(points = [ [-.5+off,-.5+off],
						[.5-off,-.5+off],
						[.5-off,.5-off],
						[-.5+off,.5-off]],paths = [[0,1,2,3]]);
}

module square2A() {
	polygon(points = [ [-.5,-.5],
						[.5,-.5],
						[.5,.5],[.1+dif,.5],[.2+adif,.4-dif],[-.2-adif,.4-dif],[-.1-dif,.5],
						[-.5,.5],[-.5,.1-dif],[-.6+dif,.2-adif],[-.6+dif,-.2+adif],[-.5,-.1+dif]],paths = [[0,1,2,3,4,5,6,7,8,9,10,11]]);
}

module offSquare2A() {
	polygon(points = [ [-.5+off,-.5+off],
						[.5-off,-.5+off],
						[.5-off,.4-off],
						[-.5+off,.4-off]],paths = [[0,1,2,3]]);
}

module square3B() {
	polygon(points = [ [-.5,-.5],[-.1-dif,-.5],[-.2-adif,-.4+dif],[.2+adif,-.4+dif],[.1+dif,-.5],
						[.5,-.5],
						[.5,.5],[.1+dif,.5],[.2+adif,.4-dif],[-.2-adif,.4-dif],[-.1-dif,.5],
						[-.5,.5],[-.5,.1-dif],[-.6+dif,.2-adif],[-.6+dif,-.2+adif],[-.5,-.1+dif]],paths = [[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15]]);
}

module offSquare3B() {
	polygon(points = [ [-.5+off,-.4+off],
						[.5-off,-.4+off],
						[.5-off,.4-off],
						[-.5+off,.4-off]],paths = [[0,1,2,3]]);
}

module square3A() {
	polygon(points = [ [-.5,-.5],
						[.5,-.5],[.5,-.1+dif],[.6-dif,-.2+adif],[.6-dif,.2-adif],[.5,.1-dif],
						[.5,.5],[.1+dif,.5],[.2+adif,.4-dif],[-.2-adif,.4-dif],[-.1-dif,.5],
						[-.5,.5],[-.5,.1-dif],[-.6+dif,.2-adif],[-.6+dif,-.2+adif],[-.5,-.1+dif]],paths = [[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15]]);
}

module offSquare3A() {
	polygon(points = [ [-.5+off,-.5+off],
						[.5-off,-.5+off],
						[.5-off,.4-off],
						[-.5+off,.4-off]],paths = [[0,1,2,3]]);
}

module square() {
	polygon(points = [ [-.5,-.5],[-.1-dif,-.5],[-.2-adif,-.4+dif],[.2+adif,-.4+dif],[.1+dif,-.5],
						[.5,-.5],[.5,-.1+dif],[.6-dif,-.2+adif],[.6-dif,.2-adif],[.5,.1-dif],
						[.5,.5],[.1+dif,.5],[.2+adif,.4-dif],[-.2-adif,.4-dif],[-.1-dif,.5],
						[-.5,.5],[-.5,.1-dif],[-.6+dif,.2-adif],[-.6+dif,-.2+adif],[-.5,-.1+dif]],paths = [[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19]]);
}

module offSquare() {
	polygon(points = [ [-.5+off,-.4+off],
						[.5-off,-.4+off],
						[.5-off,.4-off],
						[-.5+off,.4-off]],paths = [[0,1,2,3]]);
}

module backSquare() {
	polygon(points = [ [-.5,-.5],[.5,-.5],[.5,.5],[-.5,.5]],paths = [[0,1,2,3]]);
}
```


[User]
Okay, I need to design a parametric pill cutter that can cut a pill into four equal pieces. I've got some specific dimensions for the pill I'm currently working with, but I want the design to be easily adjustable for different sized pills.

Here's what I'm looking for:

**Overall Functionality:**

The pill cutter should have a base and a cutting mechanism. The base should securely hold the pill in place while the cutting mechanism applies pressure to divide it. I want to design it so I can cut a pill in quarters.

**Specific Design Elements:**

*   **Pill Holder:** The pill holder needs to have a concave shape that closely matches the profile of a pill. I've got a pill here with a diameter of 9.6mm and a total height of 4.2mm. However, the pill isn't a perfect cylinder - the top and bottom are slightly curved, and the center height is 2.6mm. The concave shape in the base needs to accommodate this.
*   **Blade/Cutting Mechanism:** The design should incorporate a mechanism to apply cutting force to the pill.  For simplicity, I'm imagining using the edge of the structure to cut, rather than a physical blade. There needs to be a gap for the pill to sit in and a cutting edge, which should be 0.8mm wide.
*   **Base:** The base should be stable and include supports to allow for easy removal of the pill.
*   **Taper:** The cutting edge should taper inward at an offset 2.2 times the base height.

**Parametric Design Needs:**

I need to be able to adjust the following parameters:

*   `pd`: Pill diameter (currently 9.6mm)
*   `pt`: Total pill height (currently 4.2mm)
*   `pt2`: Pill height at the center (currently 2.6mm)
*   `bg`: Cutting gap width (currently 0.8mm)
*  `gto`: Gap Taper Offset (currently 2.2)

**Output:**

I'm looking for an OpenSCAD file that I can use to generate an STL file for 3D printing.

**Library:**

I'm not using any libraries, so please ensure the design is done with only standard OpenSCAD primitives and operations.

**Desired Output:**

I should have two parts: a 'pill' object and a 'base' object, both selectable by a parameter.

I've also included my current .scad file in case you want to use that as a starting point.  I'm not happy with how it looks, though, and I'd like a more refined, robust design.

[Assistant]
pillcutter4.scad:
```
//Pill diameter
pd=9.6;//

//Pill hight1
pt=4.2;//

//Pill hight2
pt2=2.6;

//Brade gap
bg=0.8;//

//Gap taper offset
gto=2.2; //

//Parts sellect
part="base";//[pill,base]

pc=(pt-pt2)/2;//Convex value
sp=pd/(tan(2*atan(2*pc/pd))*2)+pd;// convex diameter

//Base hight
bh=pt2+(pt-pt2)/2+1;

echo(sp);// convex diameter
echo(pd+0.4);

module pill()
{
rotate([0,0,0])intersection(){
cylinder(h=20,r=pd/2+0.15,center=true,$fn=48);
translate([0,0,-sp+(pt2/2+0.2)])sphere(r=sp+0.2,center=true,$fn=48);
translate([0,0,sp-(pt2/2+0.2)])sphere(r=sp+0.2,center=true,$fn=48);
								}
}

module post2()
{
translate([0,pd*2.2,bh])cylinder(h=bh*1.5,r=pd*0.45 ,center=true,$fn=12);
translate([0,-pd*2.2,bh])cylinder(h=bh*1.5,r=pd*0.45 ,center=true,$fn=12);
translate([-pd*2.2,0,bh])cylinder(h=bh*1.5,r=pd*0.45 ,center=true,$fn=12);
translate([pd*2.2,0,bh])cylinder(h=bh*1.5,r=pd*0.45 ,center=true,$fn=12);
}

module post3()
{
translate([0,18,bh])cylinder(h=bh*2,r=pd*0.45 ,center=true,$fn=12);
translate([0,-18,bh])cylinder(h=bh*2,r=pd*0.45 ,center=true,$fn=12);
translate([-18,0,bh])cylinder(h=bh*2,r=pd*0.45 ,center=true,$fn=12);
translate([18,0,bh])cylinder(h=bh*2,r=pd*0.45 ,center=true,$fn=12);
}

if(part=="pill") {
		translate([0,0,0])pill();
				 }
else if (part=="base"){

	difference(){
			union(){
					translate([0,0,bh/2])cylinder(h=bh,r=pd*2.7 ,center=true,$fn=48);

					translate([0,0,0])post2();
					}
	translate([0,0,bh/2+1])pill();
	translate([0,0,bh])pill();
	translate([-bg/2,-21,1])cube(size=[bg,42,20], center=false);
	translate([-21,-bg/2,1])cube(size=[42,bg,20], center=false);
	translate([0,0,bh*gto])rotate([0,45,0])cube(size=[5,42,5], center=true);
	translate([0,0,bh*gto])rotate([45,0,0])cube(size=[42,5,5], center=true);
				}
						}

```


[User]
Okay, I've been playing around with this Rubik's cube customizer script and it's pretty neat, but I'd like to take it a lot further. I need a completely new design, and I'm hoping you can help me with the OpenSCAD code.

Here's what I'm envisioning:

**Overall Goal:** To create a parametric OpenSCAD script for generating 3x3x3 Rubik's cube modifications that are far more versatile and complex than what's currently in that example script. I want to be able to generate a variety of shapes and handle some of the more tricky geometric issues related to that.

**Key Features:**

1.  **Parametric Target Shapes:** I need a much broader set of target shapes. Beyond the basic cube, sphere, cylinder, and octahedron, I want to be able to define:
    *   **Extruded 2D Shapes:** I want to be able to import a 2D SVG path and extrude it into a 3D shape, which will be applied to the Rubik's cube. The thickness of the extrusion needs to be parametric. I expect I will use the `import()` functionality with DXF or SVG files and `linear_extrude()` to create the base shape.
    *   **Lathe Shapes:** I want the ability to revolve a 2D profile around an axis, creating a lathe-like shape (think vases or complex curved surfaces), for use as the target. Ideally, the 2D shape would be defined as a list of points or use spline interpolation on a few control points, and I would be able to change the axis of revolution parametrically.
    *   **Mesh Import/Modification:** The current script allows for STL imports, but I'd want the ability to perform simple mesh manipulations on them, specifically: scaling, rotating, mirroring and translating. The ability to import a mesh, cut it along a face and then mirror and stitch it back would also be very useful.
    *   **Boolean Operations:** I'd like to be able to combine multiple target shapes using boolean operations (union, difference, intersection) to create more complex forms. This would include combining those listed above and other simple solids such as cubes, cylinders and spheres, which need to be able to be defined by their individual parameters within the boolean operations.

2.  **Advanced Warping:** Instead of just simple rotations of layers, I need more complex warping capabilities:
    *   **Twist:** I want to be able to twist layers (or individual cubies) around axes defined by user parameters. I would need control over the twist angle and axis of rotation.
    *   **Bend:** I need the ability to bend layers along arbitrary planes, ideally with a smooth falloff or parametric curve. This might mean I need to use some sort of `multmatrix()` and some mathematics, but I want to be able to control the bend radius and angle of bend.
    *   **Taper:** I need the capability to taper or scale layers in a linear or exponential way as you move from layer to layer.

3.  **Cubie Customization:**
    *   **Variable Extensions:** I want to control how much each cubie extends beyond the target shape *per layer*. So the top layer may have more extension than the middle, for instance.
    *   **Individual Cubie Shaping:** I'd love to have options to perform operations like chamfering, filleting, or adding small details *specifically to the edges and corners* of the individual cubies *after* the base shape is cut out. This might need some clever use of `minkowski()` or similar to round off the edges in a more customisable way.
    *   **Boolean ops on cubies:** I need to be able to use `union`, `difference`, and `intersection` operations on the cubies before they are cut against the target shape, including with other shapes defined parametrically.

4.  **Donor Cube Parameters:**
    *   **Parametric Core Dimensions:** The current script has a lot of hardcoded dimensions for core wedges and spokes, etc. I want these to be fully parametric. Ideally, this includes the radius of the core, the thickness of the edge wedges, and the size and placement of the spoke-like extensions coming out from the core.
    *   **Customizable tolerances:** I need more control over the tolerances, particularly the ability to control tolerances between different types of pieces.
    *   **Cap Customization:** I want the center cap to be customizable, including the shape of the ridges. For instance, I need to be able to define the number, size, height, and shape (e.g. round, triangular, square) of the ridges, and the ability to remove them entirely.

5.  **Assembly/Visualization:**
    *   **Advanced Filtering:** I want to be able to filter what's shown based on the layer, position or a combination thereof, and specific cubie attributes (e.g. "show all edges on the top layer that have been bent").
    *   **Animation:** It would be incredible to generate simple animations of the pieces exploding outwards.
    *    **Exportable SVG faces:** The ability to export flattened faces as SVG files for painting or creating custom stickers would also be great.

**Libraries:**

I'm happy to use any relevant libraries, but I think we would need to leverage the following:

*   **MCAD:** For the `hull()` function, some functions to smooth things, and any other helpful tools.
*   **BOSL/BOSL2:** These look like they might have some advanced geometric manipulation and transformation functionality that could help me with the more advanced warping and cubie customization. I imagine the `transform()` commands will be useful, and I believe that BOSL2 now has a `mesh_boolean()` function.
* **dotSCAD**: I think this one can do some clever things with functions which may be useful.

**General Requirements:**

*   The code should be clean, well-commented, and use descriptive variable names.
*   It should be reasonably optimized.
*   I want the code to be modular so I can add features later.
*   The code should use OpenSCAD features where possible and avoid explicit coding where possible (e.g. avoiding creating long lists manually and using loops or comprehensions instead).

I know it's a lot, but I really want to push the limits of what's possible with custom Rubik's cube designs. I want this to be a flexible and extensible system. Thanks!

[Assistant]
RubikCustomizer.scad:
```
//OpenScad script for creating custom Rubik cube shapes
//Created By Steve Nicholls March 2013
//Released under a Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0) license

//It is recommended that a Rubik's donor core be used, eventually the script may be updated to include a printable core.
//It assumes the cube has end caps

//entry point for script
displayPuzzle();

/***********************************************
Settings that impact upon the end result of the custom shape
***********************************************/

//Select the part(s) to show
part=0;//[0:Fully Assembled Puzzle,1:1 Right Center,2:2 Bottom Center,3:3 Top Center,4:4 Back Center,5:5 Front Center,6:6 Left Center,7:7 Top Back Right Corner,8:8 Top Front Right Corner,9:9 Bottom Front Right Corner,10:10 Bottom Back Right Corner,11:11 Bottom Front Left Corner,12:12 Top Front Left Corner,13:13 Top Back Left Corner,14:14 Bottom Back Left Corner,15:15 Back Right Edge,16:16 Top Right Edge,17:17 Front Right Edge,18:18 Bottom Right Edge,19:19 Bottom Back Edge,20:20 Top Back Edge,21:21 Bottom Front Edge,22:22 Top Front Edge,23:23 Back Left Edge,24:24  Bottom Left Edge,25:25 Front Left Edge,26:26 Top Left Edge]
//Filter the pieces shown in the full assembly
Full_Assembly_Filter=0;// [0:All, 1:Corners only, 2:Edges only,3:Centers only,4:Layer 1];
//Distance to explode pieces in assembled rendering
Explode_Distance=1;//[0:30]

//Warning rounding the edges seriously slows down customizer. Only do this when you are ready to create STL files
Round_Edges_See_Warning=0;//[0:No,1:Yes]

//Select the base shape for the target puzzle. The resolution settings for the sphere and cylinder allow lots of other shapes to be created. (download the OpenSCAD file to set target shape to 5 and import STL's or add your own shapes). Current custom shape is a cube skewed through 15 degrees.
Target_shape=3;//[0:Cube,1:Sphere,2: Cylinder,3:Octahedron,4:Custom shape]
//Resolution (only applies to sphere and cylinder shapes)
Target_Shape_Resolution=6;//[3:60]
//Radius of target shape (only applies to sphere and cylinder shapes)
Target_Shape_Radius_1=40;//[30:60]
//Second Radius of target shape (only applies to cylinder base shape)
Target_Shape_Radius_2=40;//[30:60]
//Height of cylinder
Cylinder_Height=60;//[45:200]
//Angle to rotate target shape around X-Axis
Target_X_Angle=0;//[0:90]
//Angle to rotate target shape around Y-Axis (applied after X rotation)
Target_Y_Angle=0;//[0:90]
//Angle to rotate target shape around Z-Axis (applied after X and Y rotations)
Target_Z_Angle=0;//[0:90]
//Angle to rotate top layer before applying target shape.
Top_Layer_Offset=0;//[-45:45]
//Angle to rotate bottom layer before applying target shape
Bottom_Layer_Offset=0;//[-45:45]
//Amount to offset target shape along y-axis
Target_X_Offset=0;//[-100:100]
//Amount to offset target shape along y-axis
Target_Y_Offset=0;//[-100:100]
//Amount to offset target shape along z-axis
Target_Z_Offset=0;//[-100:100]
//Scaling factor for target shape. Increase if target shape does not fully cover donor mechanism.
Target_Scale=1;
//Factor cubies are extended out by. Increase this if target shape covers mechanism but some parts of final shape are being truncated.
Extend_Donor_Cube_Factor=2;

/***********************************************
//Settings dependent on attributes of the "donor" cube
//Following settings work for official Rubik's/Rubik's promotion cubes with caps
***********************************************/
//Edge length of donor cube. This and the following settings only need to be changed if pieces printed are too tight/loose
CUBESIZE=57*1;
//tolerance between pieces
Tolerance=0.2*1;
//width of edge piece core insert
EDGEWEDGEWIDTH=9*1;
//radius of inner core (principally affects how much corner core piece intersects with corner cubies)
CORERADIUS=18*1;
//radius of (one of the six) "spokes" that extend from core piece
SPOKERADIUS=4.5*1;
//Height of cap on center pieces (excluding protruding ridges)
CAPHEIGHT=2*1;
//Height of cap ridges
CAPRIDGEHEIGHT=4*1;
//Width (outer) of cap ridge.
CAPRIDGESIZE=12.7*1;

//to create other target shapes insert the appropriate code here (ideally shape will be centered)
module customShape() {

	//code for custom shapes here, at present a cube skewed 15 degrees through the x-axis is used
	multmatrix(m = [ [1, tan(15), 0, 0],
                 [0, 1,0, 0],
                 [0, 0, 1, 0],
                 [0, 0, 0,  1]
               ]) cube(60,center=true);

}

//Following settings are parametric but can not be changed in customiser
//Can only be used outside customizer on Thingiverse
STLFILENAME="heart.stl";
ENDSHAPEROTATION=[Target_X_Angle,Target_Y_Angle,Target_Z_Angle];
ENDSHAPEOFFSET=[Target_X_Offset,Target_Y_Offset,Target_Z_Offset];

//following settings are derived from changeable parametric settings and shouldn't be changed
cubieoutersize=CUBESIZE/3;//size of cubies
cubieinnersize=cubieoutersize-Round_Edges_See_Warning*2-Tolerance/2;//size of cubies allowing for tolerances and minkowski rounding

module targetShape() {

	translate(ENDSHAPEOFFSET) rotate (ENDSHAPEROTATION) scale(Target_Scale) {

		if (Target_shape==0)	cube(CUBESIZE,true);
		if (Target_shape==1)	sphere(r=Target_Shape_Radius_1,$fn=Target_Shape_Resolution);
		if (Target_shape==2)	cylinder(h= Cylinder_Height,r1=Target_Shape_Radius_1,r2=Target_Shape_Radius_2,$fn=Target_Shape_Resolution,center=true);
		if (Target_shape==3)	rotate([0,0,45])  polyhedron(
  points=[ [33,33,0],[33,-33,0],[-33,-33,0],[-33,33,0],
           [0,0,sqrt(2*33*33)],[0,0,-sqrt(2*33*33)] ],
  triangles=[ [0,1,4],[1,2,4],[2,3,4],[3,0,4],
              [2,1,5],[1,0,5],[0,3,5],[3,2,5] ]
 );
		if (Target_shape==4)	customShape();
		if (Target_shape==5)	import(STLFILENAME);
	}
}

module displayPuzzle() {

	if (part==0) {
		layer1();
		layer2();
		layer3();
	} else {
		showPiece(part);
	}
}

module showPiece(piecenumber=1) {

	//Layer 1 pieces
	if (piecenumber==15) edge();
	if (piecenumber==16) edge(x=90,z=Top_Layer_Offset);
	if (piecenumber==17) edge(x=180);
	if (piecenumber==18) edge(x=270,z=Bottom_Layer_Offset);
	if (piecenumber==7) corner(z=Top_Layer_Offset);
	if (piecenumber==8) corner(x=90,z=Top_Layer_Offset);
	if (piecenumber==9) corner(x=180,z=Bottom_Layer_Offset);
	if (piecenumber==10) corner(x=270,z=Bottom_Layer_Offset);
	if (piecenumber==1) centercap();

	//Layer 2 pieces
	if (piecenumber==2) centercap(y=90,z=Bottom_Layer_Offset);
	if (piecenumber==3) centercap(y=-90,z=Top_Layer_Offset);
	if (piecenumber==4) centercap(z=90);
	if (piecenumber==5) centercap(z=-90);
	if (piecenumber==19) edge(y=90,z=Bottom_Layer_Offset);
	if (piecenumber==20) edge(y=-90,z=Top_Layer_Offset);
	if (piecenumber==21) edge(x=180,y=90,z=Bottom_Layer_Offset);
	if (piecenumber==22) edge(x=180,y=-90,z=Top_Layer_Offset);

	//Layer 3 pieces
	if (piecenumber==23) edge(y=180);
	if (piecenumber==24) edge(x=90,y=180,z=Bottom_Layer_Offset);
	if (piecenumber==25) edge(x=180,y=180);
	if (piecenumber==26) edge(x=270,y=180,z=Top_Layer_Offset);
	if (piecenumber==14) corner(y=180,z=Bottom_Layer_Offset);
	if (piecenumber==11) corner(x=90,y=180,z=Bottom_Layer_Offset);
	if (piecenumber==12) corner(x=180,y=180,z=Top_Layer_Offset);
	if (piecenumber==13) corner(x=270,y=180,z=Top_Layer_Offset);
	if (piecenumber==6) centercap(y=180);

};

module layer1() {
	if (Full_Assembly_Filter==0 || Full_Assembly_Filter==2)  rotate([0,0,0]) showPiece(15);
	if (Full_Assembly_Filter==0 || Full_Assembly_Filter==2) rotate([90,0,Top_Layer_Offset]) showPiece(16);
	if (Full_Assembly_Filter==0 || Full_Assembly_Filter==2) rotate([180,0,0]) showPiece(17);
	if (Full_Assembly_Filter==0 || Full_Assembly_Filter==2) rotate([270,0,Bottom_Layer_Offset]) showPiece(18);
	if (Full_Assembly_Filter==0 || Full_Assembly_Filter==1) rotate([0,0,Top_Layer_Offset]) showPiece(7);
	if (Full_Assembly_Filter==0 || Full_Assembly_Filter==1) rotate([90,0,Top_Layer_Offset]) showPiece(8);
	if (Full_Assembly_Filter==0 || Full_Assembly_Filter==1) rotate([180,0,Bottom_Layer_Offset]) showPiece(9);
	if (Full_Assembly_Filter==0 || Full_Assembly_Filter==1) rotate([270,0,Bottom_Layer_Offset]) showPiece(10);
	if (Full_Assembly_Filter==0 || Full_Assembly_Filter==3) rotate([0,0,0]) showPiece(1);
}

module layer2() {
	if (Full_Assembly_Filter==0 || Full_Assembly_Filter==3) rotate([0,90,Bottom_Layer_Offset]) showPiece(2);
	if (Full_Assembly_Filter==0 || Full_Assembly_Filter==3) rotate([0,-90,Top_Layer_Offset])	showPiece(3);
	if (Full_Assembly_Filter==0 || Full_Assembly_Filter==3) rotate([0,0,90])	centercap(z=90) showPiece(4);
	if (Full_Assembly_Filter==0 || Full_Assembly_Filter==3) rotate([0,0,-90])	centercap(z=-90) showPiece(5);
	if (Full_Assembly_Filter==0 || Full_Assembly_Filter==2) rotate([0,90,Bottom_Layer_Offset]) showPiece(19);
	if (Full_Assembly_Filter==0 || Full_Assembly_Filter==2) rotate([0,-90,Top_Layer_Offset]) showPiece(20);
	if (Full_Assembly_Filter==0 || Full_Assembly_Filter==2) rotate([180,90,Bottom_Layer_Offset]) showPiece(21);
	if (Full_Assembly_Filter==0 || Full_Assembly_Filter==2) rotate([180,-90,Top_Layer_Offset]) showPiece(22);
}

module layer3() {
	if (Full_Assembly_Filter==0 || Full_Assembly_Filter==2) rotate([0,180,0]) showPiece(23);
	if (Full_Assembly_Filter==0 || Full_Assembly_Filter==2) rotate([90,180,Bottom_Layer_Offset]) showPiece(24);
	if (Full_Assembly_Filter==0 || Full_Assembly_Filter==2) rotate([180,180,0]) showPiece(25);
	if (Full_Assembly_Filter==0 || Full_Assembly_Filter==2) rotate([270,180,Top_Layer_Offset]) showPiece(26);
	if (Full_Assembly_Filter==0 || Full_Assembly_Filter==1) rotate([0,180,Bottom_Layer_Offset]) showPiece(14);
	if (Full_Assembly_Filter==0 || Full_Assembly_Filter==1) rotate([90,180,Bottom_Layer_Offset]) showPiece(11);
	if (Full_Assembly_Filter==0 || Full_Assembly_Filter==1) rotate([180,180,Top_Layer_Offset]) showPiece(12);
	if (Full_Assembly_Filter==0 || Full_Assembly_Filter==1) rotate([270,180,Top_Layer_Offset]) showPiece(13);
	if (Full_Assembly_Filter==0 || Full_Assembly_Filter==3) rotate([0,180,0])  showPiece(6);
}

module edge(x=0,y=0,z=0) {
    translate([Explode_Distance,Explode_Distance,0]) union() {
        difference() {
		//if there is no rounding skip minkowski call to speed things up
		if (Round_Edges_See_Warning>0) {
			minkowski() {
				rotate([-x,0,0]) rotate([0,-y,0]) rotate([0,0,-z]) truncatedEdge(x,y,z);
				sphere(r=Round_Edges_See_Warning, $fn=12);
				}
		} else {
			rotate([-x,0,0]) rotate([0,-y,0]) rotate([0,0,-z]) truncatedEdge(x,y,z);
		}
          coreSpace(CORERADIUS+Tolerance/2,60);
      }
	intersection() {
	      translate([SPOKERADIUS+Tolerance/2,SPOKERADIUS+Tolerance/2,-EDGEWEDGEWIDTH/2]) cube([CORERADIUS-SPOKERADIUS-Tolerance,CORERADIUS-SPOKERADIUS-Tolerance,EDGEWEDGEWIDTH]);
//		coreSpace(CORERADIUS+Tolerance/2+.01,60);
		}
	}
}

module truncatedEdge(x=0,y=0,z=0) {
	intersection() {
		rotate([x,y,z]) translate([cubieoutersize/2+Round_Edges_See_Warning,cubieoutersize/2+Round_Edges_See_Warning,-cubieinnersize/2]) cube([cubieoutersize*Extend_Donor_Cube_Factor, cubieoutersize*Extend_Donor_Cube_Factor, cubieinnersize]);
		targetShape();
	}
}

module corner(x=0,y=0,z=0) {

    		translate([Explode_Distance,Explode_Distance,Explode_Distance]) union() {
			if (Round_Edges_See_Warning>0) {
				minkowski() {
					rotate([-x,0,0]) rotate([0,-y,0]) rotate([0,0,-z]) truncatedCorner(x,y,z);
					sphere(r=Round_Edges_See_Warning, $fn=12);
					}
		} else {
			rotate([-x,0,0]) rotate([0,-y,0]) rotate([0,0,-z]) truncatedCorner(x,y,z);
		}

		intersection() {
      		translate([(EDGEWEDGEWIDTH+Tolerance)/2,(EDGEWEDGEWIDTH+Tolerance)/2,(EDGEWEDGEWIDTH+Tolerance)/2]) cube(CUBESIZE) ;
	          	coreSpace();
		}
	}
}

module truncatedCorner(x=0,y=0,z=0) {
	intersection() {
		rotate([x,y,z]) translate([cubieoutersize/2+Round_Edges_See_Warning,cubieoutersize/2+Round_Edges_See_Warning,cubieoutersize/2+Round_Edges_See_Warning]) cube(cubieinnersize*Extend_Donor_Cube_Factor);
		targetShape();
	}
}

module centercap(x=0,y=0,z=0) {

	translate([Explode_Distance,0,0]) union() {
      	difference() {
			if (Round_Edges_See_Warning>0) {
				minkowski() {
					rotate([-x,0,0]) rotate([0,-y,0]) rotate([0,0,-z]) truncatedcap(x,y,z);
					sphere(r=Round_Edges_See_Warning, $fn=12);
				}
			} else {
				rotate([-x,0,0]) rotate([0,-y,0]) rotate([0,0,-z]) truncatedcap(x,y,z);
			}

	            	  translate([cubieoutersize-CAPHEIGHT,0,0]) cube(cubieoutersize,true);
            }

		difference() {
			translate([cubieoutersize*1.5-CAPHEIGHT-CAPRIDGEHEIGHT/2,0,0]) cube([CAPRIDGEHEIGHT,CAPRIDGESIZE,CAPRIDGESIZE],true);
			translate([cubieoutersize*1.5-CAPHEIGHT-CAPRIDGEHEIGHT/2,0,0]) cube([CAPRIDGEHEIGHT,CAPRIDGESIZE-4,CAPRIDGESIZE-4],true);
		}
	}
}

module truncatedcap(x=0,y=0,z=0) {
	intersection() {
		rotate([x,y,z]) translate([((cubieoutersize+cubieinnersize*Extend_Donor_Cube_Factor)/2) + Round_Edges_See_Warning,0,0]) cube([cubieinnersize*Extend_Donor_Cube_Factor, cubieinnersize, cubieinnersize],true);
		targetShape();
	}
}

//space for core
module coreSpace(radius=CORERADIUS,facets=60) {

//
//	sphere(radius,$fn=facets);

	intersection() {
		cylinder(CUBESIZE,r=radius,$fn=facets,center=true);
		rotate([90,0,0]) cylinder(CUBESIZE,r=radius,$fn=facets,center=true);
		rotate([0,90,0]) cylinder(CUBESIZE,r=radius,$fn=facets,center=true);
	}
}

```


[User]
Okay, I'm trying to design a parametric marble run track that I can 3D print and attach to a flat surface, like a piece of plywood. I've seen a design by mattjoyce that I've modified a bit, but I'd really like something more flexible and easier to customize.

Here's what I'm envisioning:

**Basic Track Shape:**

*   The track should be a trough, shaped like a quarter-cylinder, with flat sections on the back and bottom for mounting.
*   I need to be able to adjust the length of the track.
*   I want to have some control over the round edges where the track transitions into the flat areas – like how the current example uses a larger cylinder subtracted from a cube.
*   The marble trough itself should be easily adjusted, in terms of the radius.

**Mounting Options:**

*   I'd like to have options for both magnets and pins for mounting. I'll be mostly using pins for attaching to non-magnetic surfaces, but maybe someday I'll use magnets on a fridge or something.
*   **Magnets:** If using magnets, I'd need to be able to specify the magnet diameter and the depth of the magnet holes. I need to control the number and position of the holes on the back side of the track.
*   **Pins:** For pins, I want to use lengths of filament.
    *   The pins should be able to be either perpendicular to the flat back or angled at the same angle as the back. I need to set an angle parameter for that back and the corresponding pins.
    *   I need to control pin diameter, pin hole depth, and pin length.
    *   I need to control the number and position of the pin holes.

**Other Considerations:**

*   The ability to orient the track so that the flat back sits flush on the build plate would be great. So a boolean flag to set whether to export the part in the upright position, or flat on the build platform.
*   I'd like to use the BOSL2 library for any helper functions you might use. I'm a bit new to some of this, so I'd be grateful if the code is commented.

**Specific Parameters I'd Like to Control:**

*   `trackLength`:  The overall length of the track.
*   `troughRadius`: The radius of the marble trough itself.
*    `edgeRadius`: Radius of the cylinder used for the round edges.
*    `backAngle`: Angle of the back of the track, used for positioning the back flat to a surface.
*   `magnetDiameter`: Diameter of the magnets.
*   `magnetDepth`: Depth of the magnet holes.
*   `numMagnets`: Number of magnets.
*  `magnetPositions`: Position of the magnets.
*   `pinDiameter`: Diameter of the pins (filament).
*   `pinDepth`: Depth of the pin holes.
*   `pinLength`: Length of the pins.
*   `numPins`: Number of pins.
*   `pinPositions`: Position of the pins.
*    `pinPerpendicular`: Boolean: True for pins at 90 degrees to the back, false for pins angled at the same angle of the back.
*   `mountType`: An enum that allows me to choose between "magnets", "pins", or "both".
*    `placeOnBuildPlatform`: Boolean: True for laying the flat base on the build platform, false for oriented according to `backAngle`

Could you generate an OpenSCAD file that is parametric based on these specifications?

[Assistant]
MyMarbleRun2.scad:
```
//http://www.thingiverse.com/thing:56236
//by mattjoyce
//customized by Arvin Evans

//length of trough
l1=100;
//magnet radius given as diameter measure. ( /2 in code)
mr=6.25;
//magnet hole depth
md=2;
//outside diameter of cylinder to subtract from and give nice round edges
od=10;
//My additions to mattjoyce's code
withMagnets="no";//[yes:Magnets,no:Pins,other:both]

pinDia=3;//filament pins to attach to a non-magnetic back plate
pinHoleDepth=5;
pinLength=15;

//Pins at the same angle as the back or horizontal to build platform?
perpendicular="false";//[true:90 degrees to back,false:parallel to bottom]
backAngle=60;
placeOnBuildPlatform="true";//[true:Flat to build platform,false:As the Original]

$fn=100;

module track(){
	difference(){
		rotate([0,90,0]) translate([-od,od/2,0])
		cylinder(r=od,h=l1);// gives nice round edges
		rotate([backAngle,0,0]) translate([-1,-od,-od])
		cube([l1+2,od*2,od*3]);// flattens the bottom
		translate([-1,od+2.5,0])
		cube([l1+2,od*2,od*3]);// flattens the back
		rotate([0,90,0]) translate([-18,4.5,-1])
		cylinder(r=7,h=l1+2); // the marble trough

		if(withMagnets=="yes" || withMagnets=="other"){
			rotate([90,0,0]) translate([l1/5,mr*2,-15+md])// 1/5
			cylinder(r=mr/2,h=md);// (back) magnet hole1
			rotate([90,0,0]) translate([l1/5*2.5,mr*1.5,-15+md])// 2.5/5=1/2
			cylinder(r=mr/2,h=md);// (middle) magnet hole2
			rotate([90,0,0]) translate([l1/5*4,mr*2,-15+md])// 4/5
			cylinder(r=mr/2,h=md);// (front) magnet hole3
		}
		if(withMagnets=="no" || withMagnets=="other"){
			if(perpendicular=="true"){// 90 degrees
				rotate([90,0,0])
				translate([l1/5,od,-pinLength-pinHoleDepth-1])
#				cylinder(r=pinDia/2,h=pinLength);

				rotate([90,0,0])
				translate([l1/5*4,od,-pinLength-pinHoleDepth-1])
#				cylinder(r=pinDia/2,h=pinLength);

			}else{//angled at backAngle degrees
				rotate([backAngle,0,0])
				translate([l1/5,od+pinDia,-pinLength-1])
#				cylinder(r=pinDia/2,h=pinLength);

				rotate([backAngle,0,0])
				translate([l1/5*4,od+pinDia,-pinLength-1])
#				cylinder(r=pinDia/2,h=pinLength);
			}
		}
	}
}

module main(){
  if(placeOnBuildPlatform=="true"){
	translate([-l1/2,0,-od])// move down to platform
	rotate([90-backAngle,0,0])// put the base flat to platform
	track();
  } else {
	track();
  }
}

main();
```


[User]
Okay, I'm looking for an OpenSCAD script to generate a customizable makeup holder. I've already got a basic design, but I'd like to make it more flexible and robust.

Essentially, I need a multi-slot holder for things like eyeshadow palettes, eyeliners, and blushes. The current script I'm using is a bit clunky and hard to adjust. I'm looking for something that lets me define these parameters:

*   **Number of Rows (Height Slots):**  I want to be able to easily specify how many shelves/rows the holder has. I'd like to be able to adjust this between 1 and 10.
*   **Number of Columns (Width Slots):** The same as above, but to control how many items are side-by-side, also adjustable between 1 and 10.
*   **Item Diameter:**  I need to be able to specify the diameter of the items that will be stored. Right now, I'm using 38mm but I need to be able to adjust this from 15mm to 75mm.
*   **Item Height:** And their height. I've got this at 25mm now, but it should be adjustable between 15 and 50.
*   **Wall Width:** The thickness of the walls between the slots - I'm good with this being 1 or 2.
*  **Backstop Width:**  The thickness of the vertical support in the middle of each slot.  Adjustable between 2 and 5, as it currently is.
*   **Side Wall Nibble:** The cutout on the side walls to make it easier to grab items out, this is currently a rectangle and partial cylinder. I'd like to be able to adjust the height and width of the rectangle, and the radius of the cylinder. I'd also like the cylinder to be optional.
    *   **Nibble Height:** Currently at 5, and I'd like this to be adjustable between 5 and 15.
    *   **Nibble Rectangle Width:** Currently 7.5, adjustable between 5 and 15.

I'd also like the script to:

*   Clearly label all the parameters so they are easy to find and understand.
*   Calculate and print out the overall dimensions of the finished object as a message when it renders so I don't have to calculate this by hand.
*   Include the support diamonds on the backstop, these help keep it together and prevent damage.
*   Be well-structured, and easy to modify if I need to add something later on.
* I don't need anything fancy; the rendering does not need to look perfect, I'm just using the script to generate STLs for printing.

I'm not currently using any specific libraries, but if one would make this significantly easier, I am open to it. I also don't have a preference for modules or functions, either is fine, whatever makes sense for the program.

Could you please create a new script, based on these requirements, that I can use to do this?

[Assistant]
makeup-holder-n.scad:
```

// -------------------------------------------------------------
// Customizable makeup holder.
//
// OpenSCAD script to generate a multi-slot make-up holder.  I
// found myself building roughly the same model multiple times,
// for different dimensions of make-up products for my wife. I
// realized it was faster to find a way to script the creation
// instead, and wound up generating this.
//
// Yes, the formatting of the script is odd; it's set up to fit
// half-screened on an ultra-book, which winds up about ~65 chars
//
// James Long (james@jameslong.org)
// -------------------------------------------------------------

// -------------------------------------------------------------
// Holder specific settings - things you must change for each
// custom model.
// -------------------------------------------------------------

// Tells customizer to show from the front.
// preview[view:north west, tilt:top diagonal]

// Number of rows in the holder.
HEIGHT_SLOTS = 5; // [1:10]

// Number of columns in the holder.
WIDTH_SLOTS = 2; // [1:10]

// Width of the item to be stored.
DIAMETER = 38;// [15:75]

// Height of the item to be stored.
ITEM_HEIGHT = 25; // [15:50]

// -------------------------------------------------------------
// Customization - settings that work, by default, but may be
//     customized to your preferences.
// -------------------------------------------------------------

// Width of the walls.
WALLS = 2; // [1:2]

// Width of the vertical backstop.
BACKSTOP_WIDTH=5; // [2:5]

// Size of the nibble to take out of the side walls.
WALL_NIBBLE_HEIGHT=5; // [5:15]

// Height of the nibble to take out of the side walls.
WALL_NIBBLE_RECT_WIDTH=7.5; // [5:15]

// -------------------------------------------------------------
// Internal variables.
// -------------------------------------------------------------

// Internal common variables.
WIDTH = DIAMETER + 1;
HEIGHT = ITEM_HEIGHT + 1;
OVERALL_WIDTH = (WIDTH + WALLS) * WIDTH_SLOTS + WALLS;
OVERALL_HEIGHT = (HEIGHT + WALLS) * HEIGHT_SLOTS + WALLS;
OVERALL_DEPTH = DIAMETER + WALLS;

// Spit out the overall dimensions.
echo(str("Dimensions are ", OVERALL_WIDTH, "x", OVERALL_HEIGHT, "x", OVERALL_DEPTH));

// Overall union to build the object.
union() {

   // Build the base - a full diameter rectangle.
   cube([OVERALL_WIDTH, DIAMETER + WALLS, WALLS]);

   // Generate the rectangular portion of the shelves.
   for (level = [1 : HEIGHT_SLOTS]) {
     translate([0, 0, level * (HEIGHT + WALLS)]) {
       cube([(WIDTH + WALLS) * WIDTH_SLOTS + WALLS,
             DIAMETER/2 + WALLS,
             WALLS]);
     }

     // The topmost shelf is just the rectangular portion.
     if (level < HEIGHT_SLOTS) {
       // The rest of the slots halve a half-cylinder ledge with
       // a chunk cut out to help you grab items out of it.
       for (x = [0 : WIDTH_SLOTS -1]) {
         translate([WALLS + (x + .5) * (WIDTH + WALLS), WALLS + DIAMETER/2, (HEIGHT + WALLS) * level]) {
           difference() {
             // Generate the cylinder.  This is a little sloppy -
             // rather than generating a half cylinder, we're
             // assuming we can just fuse the back half of the
             // cylinder with the rectangular shelf
             cylinder(r=DIAMETER/2, h=WALLS);
             // Offset to the far end of the cylinder, and
             // subtract a smaller scaled cylinder out of it.
             translate([0, DIAMETER/2, -1]) {
               scale([1,2,1]) cylinder(r=DIAMETER/4, h=WALLS+2);
             }
           }
         }
       }
     }
   }

   // Generate the vertical backstop walls that span the middle
   // of each slot.
   for (x = [0 : WIDTH_SLOTS - 1]) {
     translate([WALLS + (x) * (WIDTH + WALLS) + WIDTH / 2.0 - BACKSTOP_WIDTH/2.0, 0, 0]) {
       cube([BACKSTOP_WIDTH, WALLS, OVERALL_HEIGHT]);
     }
   }

   // Diamonds on the backstop, to give added support and keep
   // the wall from getting damaged when removing it from the
   // build plate.
   for (z = [0 : HEIGHT_SLOTS]) {
     for (x = [0 : WIDTH_SLOTS]) {
       // Create the diamond shape at the intersection of the
       // vertical walls and the shelf.
       intersection() {
         translate([x * (WALLS+WIDTH) + WALLS/2, WALLS/2, z * (WALLS+HEIGHT) + WALLS/2]) {
           rotate(45, [0,1,0]) cube([10, WALLS, 10],center=true);
         }
         translate([-.01,-.01,-.01]) cube([OVERALL_WIDTH, WALLS+2, OVERALL_HEIGHT]);
       }

       // Add the diamond on the right side of the intersection
       // of the backstop and the shelf.
       intersection() {
         translate([(WALLS + x * (WALLS+WIDTH) + WIDTH / 2.0 + BACKSTOP_WIDTH / 2), WALLS/2, z * (WALLS+HEIGHT) + WALLS/2]) {
           rotate(45, [0,1,0]) cube([10, WALLS, 10],center=true);
         }
         translate([-.01,-.01,-.01]) cube([OVERALL_WIDTH, WALLS+2, OVERALL_HEIGHT]);
       }
       // Add the diamond on the left side of the intersection
       // of the backstop and the shelf.
       intersection() {
         translate([(WALLS + x * (WALLS+WIDTH) + WIDTH / 2.0 - BACKSTOP_WIDTH / 2.0), WALLS/2, z * (WALLS+HEIGHT) + WALLS/2]) {
           rotate(45, [0,1,0]) cube([10, WALLS, 10],center=true);
         }
         translate([-.01,-.01,-.01]) cube([OVERALL_WIDTH, WALLS+2, OVERALL_HEIGHT]);
       }
     }
   }

   // Generate the vertical walls between the slots.
   difference() {
     // Each of the vertical rectangular solids.
     for (wall = [0 : WIDTH_SLOTS]) {
       translate([wall * (WIDTH + WALLS), 0, 0]) {
         cube([WALLS,
               DIAMETER / 2+WALLS,
               (HEIGHT + WALLS) * HEIGHT_SLOTS + WALLS]);
       }
     }
     // Subtracting out a finger slot in the sides by subtracting
     // a cylinder and a rectangular solid from the walls.
     union() {
       for (level = [0 : HEIGHT_SLOTS]) {
         translate([-1, DIAMETER/2-WALL_NIBBLE_RECT_WIDTH + WALLS, (level+0.5) * (HEIGHT + WALLS)]) {
           rotate(90, [0,1,0]) cylinder(h=OVERALL_WIDTH+2, r=WALL_NIBBLE_HEIGHT/2);
           translate([0, 0, -WALL_NIBBLE_HEIGHT/2]) cube([OVERALL_WIDTH+2,WALL_NIBBLE_RECT_WIDTH+1,WALL_NIBBLE_HEIGHT]);
         }
       }
     }
   }
}
```


[User]
Okay, I've got a cool idea for a pair of customizable glasses, and I need some help creating an OpenSCAD design. I'd like the design to be parametric, so I can easily adjust the sizes and shapes to fit different faces and preferences.

Here’s what I’m looking for:

**Overall Structure:**

*   The glasses should have a main frame consisting of two lens frames connected by a nose bridge.
*   There should be hinges connecting the main frame to the temple arms (the ear pieces).
*   I'd like the hinges to be functional, allowing the arms to fold in. I'm thinking of using pins for the hinges, so please utilize the `pins.scad` library for the hinge design.
*   I'm also thinking it would be useful to use the `shapes.scad` library, from MCAD, for a rounded box as the base for the frame.

**Specific Components and Parameters:**

*   **Nose Bridge:**
    *   `Width_of_Nose_Bridge`: The width of the bridge connecting the two lens frames (e.g. 25mm).
    *   `Height_of_Nose_Bridge`: The height of the bridge (e.g. 7mm).
*   **Lens Frames:**
    *   `Overall_Glasses_Width`: The total width of the glasses at eye level (e.g. 100mm).
    *   `Height_of_Frame`: The height of each lens frame (e.g. 35mm).
    *   `Depth_of_Glasses`: The depth or thickness of the frame (e.g. 3mm).
    *   `Thickness_of_Frame`:  The thickness of the frame material around each lens (e.g. 5mm).
    *   `shape`: Allows for either "round" or "square" lens shapes.
*   **Infill Pattern:**
    *   `Pattern_Infill_Type`:  A parameter to determine the infill pattern within the lens area, with options for:
        *   0: None
        *   3: Triangles
        *   4: Squares
        *   5: Pentagons
        *   6: Hexagons
        *   7: Heptagons
        *   8: Octagons
        *   9: Nonagons
        *  10: Decagons
        *  40: Circles
    *   `Pattern_Radius`:  The radius of each individual infill element (e.g. 5mm).
    *   `Pattern_Radius_Modifier`: An optional parameter for modifying the radius of the pattern elements without changing the spacing (e.g. 0 to 30).
    *   `Pattern_Line_Thickness`: The thickness of the lines forming the infill pattern (e.g. 11, which translates to 1.1mm).
*   **Temple Arms:**
    *   `Temple_Length`: The overall length of the temple arm (e.g. 125mm).
    *   `Height_of_Hook_Curve`: The height of the curved section of the temple arm that goes around the ear (e.g. 30mm).
    *   `Length_of_Hook_Curve`: The length of the curved hook section (e.g. 18mm).

**Hinge Details:**

*   The hinges should be designed to use the pintack from the `pins.scad` library to connect the temple arms to the frame.
*   The hinge should consist of a basic hole for the pin.

**Additional Notes:**

*   I'd like to have an oval shape available as a lens option as well.
*   The design should be easily customizable, so users can adjust parameters for fit and style.
*   I’m thinking that if the pattern sides parameter is 0, the pattern module should not be invoked.
*   The frame and lens modules should support either a square or round shape, dictated by the ‘shape’ parameter, which is a string.
*   When making the lens module, I want it to subtract, so that the frame has a hole in it.
*   The hinge module should also include the necessary pinhole for use with the pintack function.
* The glasses are symmetric.

I think that covers everything. Let me know if you need any more information. I'm really excited to see what you come up with!

[Assistant]
Glasses.scad:
```
use <./MCAD/shapes.scad>
use <./pins/pins.scad>

//preview[view:north, tilt:top];

//What Shape do you want the Frames to be?
shape="square";//[round, square]

Width_of_Nose_Bridge=25;//[10:40]
lengthBridge=Width_of_Nose_Bridge;

Height_of_Nose_Bridge=7;//[2:12]
widthBridge=Height_of_Nose_Bridge;

//What is the width of your head at eye level?
Overall_Glasses_Width=100;//[50:200]
lengthFrame=Overall_Glasses_Width-Width_of_Nose_Bridge-20/2;

Height_of_Frame=35;//[20:60]
widthFrame=Height_of_Frame;

//Greater depth means greater rigidity.
Depth_of_Glasses=3;//[1:5]
heightFrame=Depth_of_Glasses;

//Thickness of frame around eyes.
Thickness_of_Frame=5;//[1:10]
thicknessFrame=Thickness_of_Frame;

//What infill do you want
Pattern_Infill_Type=0;//[0:None, 3:Triangles (3 Sides), 4:Squares(4 Sides), 5:Pentagons(5 Sides), 6:Hexagons(6 Sides), 7:Heptagons(7 Sides), 8:Octagons(8 Sides), 9:Nonagons(9 Sides), 10:Decagons(10 Sides), 40: Circles]
patternSides=Pattern_Infill_Type;//If is 0, no pattern

//Radius of an individual pattern element.
Pattern_Radius=5;//[1:25]
patternRadius=Pattern_Radius;

//Change Radius of individual pattern element without changing spacing between their centers.  Can be used to achieve some cool effects and overlapping pattern elements.
Pattern_Radius_Modifier=0;//[0:30]
patternRadiusModifier=Pattern_Radius_Modifier;

//Will be multiplied by .1mm so can achieve finer precision in this thickness, for more detail. (ie. 11=1.1mm, etc)
Pattern_Line_Thickness=11;//[4:100]
patternThickness=Pattern_Line_Thickness*.1;

//Length of the Temple (The ear hook piece)
Temple_Length=125;//[50:250]
straightLength=Temple_Length;

//Please note that for the hook, it is made out of a side of an oval to achieve the curves, so please take this into consideration.
Height_of_Hook_Curve=30;//[15:50]
hookWidth=Height_of_Hook_Curve;

Length_of_Hook_Curve=18;//[18:50]
hookLength=Length_of_Hook_Curve;

//ignore variable values, add +0 so not included
lengthHinge=15+0;//Set Variable
widthHinge=27+0;//Set Variable
$fn=100+0;
lengthHinge=8+2+heightFrame+0;

//BEGIN

rotate([0, 0, 180])
{
	translate([(straightLength/2)+(4)+5, (15/2)+15-10, 0])//Pins
	{
		pintack(h=22+2, r=2, lh=3, lt=1, bh=3, br=4);//Pins
	}
	translate([(straightLength/2)+(4)+15,  (15/2)+15-10, 0])
	{
		pintack(h=22+2, r=2, lh=3, lt=1, bh=3, br=4);//Pins
	}

	translate([0, (15/2)+15+10, 0])
	{
		union()//Left Hook
		{
			translate([0, 0, heightFrame/2])
			{
				cube([straightLength, 15, heightFrame], center=true);
			}
			translate([-(straightLength/2)+(8/2)+2, 0, (10/2)+heightFrame])//Hinge
			{
				difference()
				{
					cube([8, 10, 10], center=true);
					translate([0, 0, 1])
					{
						rotate([90, 0, 0])
						{
							cylinder(r=2.5, h=10+1, center=true);
						}
					}
				}
			}
			translate([(straightLength/2), hookWidth-(15/2), heightFrame/2])
			{
				rotate([0, 0, 90])
				{
					hook(hookWidth, hookLength, 15, heightFrame, center=true);
				}
			}
		}
	}
	translate([0, (15/2)+15-10, 0])
	{
		union()//Right Hook
		{
			translate([0, 0, heightFrame/2])
			{
				cube([straightLength, 15, heightFrame], center=true);
			}
			translate([(straightLength/2)-(8/2)-2, 0, (10/2)+heightFrame])//Hinge
			{
				difference()
				{
					cube([8, 10, 10], center=true);
					translate([0, 0, 1])
					{
						rotate([90, 0, 0])
						{
							cylinder(r=2.5, h=10+1, center=true);
						}
					}
				}
			}
			translate([-(straightLength/2), hookWidth-(15/2), heightFrame/2])
			{
				rotate([ 180, 0, 90])
				{
					hook(hookWidth, hookLength, 15, heightFrame, center=true);
				}
			}
		}
	}
}
union()//GLASSES
{
	translate([(lengthBridge/2)+(lengthFrame)+(8/2), (widthFrame/2)+(5/2)-(widthHinge/2), heightFrame+(10/2)])
	{
		hinge(8, 5, 10, 2.5);
	}
	translate([-(lengthBridge/2)-(lengthFrame)-(8/2), (widthFrame/2)+(5/2)-(widthHinge/2), heightFrame+(10/2)])
	{
		hinge(8, 5, 10, 2.5);
	}

	difference()
	{
		union()//Make Frame and Bridge
		{
			translate([0, 6, heightFrame/2])
			{
			cube([lengthBridge+(lengthFrame), widthBridge, heightFrame], center=true);//Make Bridge, with some excess
			}
			translate([(lengthFrame/2)+(lengthBridge/2), (widthFrame/2), heightFrame/2])//Lens1
			{
				frame(lengthFrame, widthFrame, heightFrame, thicknessFrame, shape);
			}
			translate([-(lengthFrame/2)-(lengthBridge/2), (widthFrame/2), heightFrame/2])//Lens 2
			{
				frame(lengthFrame, widthFrame, heightFrame, thicknessFrame, shape);
			}
			translate([(lengthBridge/2)+(lengthFrame)+(lengthHinge/2)-(lengthFrame/4), (widthFrame/2), heightFrame/2])
			{
				union()//Hinge Base
				{
					cube([lengthHinge+(lengthFrame/2), widthHinge, heightFrame], center=true);

				}
			}
			translate([(-lengthBridge/2)-(lengthFrame)-(lengthHinge/2)+(lengthFrame/4), (widthFrame/2), heightFrame/2])
			{
				union()//Hinge Base
				{
					cube([lengthHinge+(lengthFrame/2), widthHinge, heightFrame], center=true);
				}
			}
		}
		union()//Subtract Lens
		{
			translate([(lengthFrame/2)+(lengthBridge/2), (widthFrame/2), heightFrame/2])//Lens1
			{
				lens(lengthFrame, widthFrame, heightFrame, thicknessFrame, shape, widthBridge);
			}
			translate([-(lengthFrame/2)-(lengthBridge/2), (widthFrame/2), heightFrame/2])//Lens 2
			{
				lens(lengthFrame, widthFrame, heightFrame, thicknessFrame, shape, widthBridge);
			}
		}
	}
	if(patternSides!=0)//Fill Glasses if want
	{
		translate([(lengthFrame/2)+(lengthBridge/2), (widthFrame/2), heightFrame/2])//Lens1
		{
			intersection()
			{
				if(shape=="round")
				{
					oval((lengthFrame/2)-thicknessFrame, (widthFrame/2)-thicknessFrame, thicknessFrame, center=true);
				}
				else if(shape=="square")
				{
					roundedBox(lengthFrame-(thicknessFrame*2), widthFrame-(thicknessFrame*2), heightFrame+.5, 2, center=true);//Subtract Lens
				}
				mesh(lengthFrame, widthFrame, heightFrame, patternRadius, patternRadiusModifier, (patternThickness), patternSides);
			}
		}
		translate([-(lengthFrame/2)-(lengthBridge/2), (widthFrame/2), heightFrame/2])//Lens1
		{
			intersection()
			{
				if(shape=="round")
				{
					oval((lengthFrame/2)-thicknessFrame, (widthFrame/2)-thicknessFrame, thicknessFrame, center=true);
				}
				else if(shape=="square")
				{
					roundedBox(lengthFrame-(thicknessFrame*2), widthFrame-(thicknessFrame*2), heightFrame+.5, 2, center=true);//Subtract Lens
				}
			mesh(lengthFrame, widthFrame, heightFrame, patternRadius, patternRadiusModifier, (patternThickness), patternSides);
			}
		}
	}
}

//MODULES
module frame(lengthFrame, widthFrame, heightFrame, thicknessFrame, shape)//Make outer Frame
{
	if(shape=="square")
	{
			roundedBox(lengthFrame, widthFrame, heightFrame, 2, center=true);//Make Frame

	}
	else if(shape=="round")
	{
			ovalTube(heightFrame, lengthFrame/2, widthFrame/2, thicknessFrame, center=true);//Make Frame
	}
}//End frame

module lens(lengthFrame, widthFrame, heightFrame, thicknessFrame, shape, widthBridge)//Make Lens to be subtracted
{
	if(shape=="square")
	{
			roundedBox(lengthFrame-(thicknessFrame*2), widthFrame-(thicknessFrame*2), heightFrame+.5, 2, center=true);//Subtract Lens
	}
	else if(shape=="round")
	{
			oval((lengthFrame/2)-thicknessFrame, (widthFrame/2)-thicknessFrame, thicknessFrame, center=true);
	}
}//End Lens

module hinge(width, length, height, radius)
{
	difference()
	{
		cube([width, length, height], center=true);
		translate([0, 0, 1])
		{
			rotate([90, 0, 0])
			{
				cylinder(r=radius, h=length+1, center=true);
			}
		}
	}
	translate([0, widthHinge-(length/2)-(length*2), 0])
	{
		difference()
		{
			translate([0, 10/2, 0])
			{
			cube([width, length*2, height], center=true);
			}

			rotate([-90, 0, 0])
			{
			pinhole(h=7, r=2, lh=3, lt=1, t=.5, tight=true);
			}
		}
	}
}//End Hinge

//Oval Shape, part of OpenScad Shapes Library, but for some reason not in the MCAD library
module oval(w,h, height, center = false) {
  scale([1, h/w, 1]) cylinder(h=height, r=w, center=center);
}

module mesh(width,length,height,r,rmod,th,sides)//Based on code from Makerbot iPhone case, but slightly modified
{

	columns = length/(r*3)+1;
	rows = width/(r*sqrt(3)/2*2);

	translate([-width/2,length/2,0])
		rotate([0,0,-90])
			for(i = [0:rows]){

				translate([0,r*sqrt(3)/2*i*2,0])
					for(i = [0:columns]){
						translate([r*i*3,0,0])
							for(i = [0:1]){
								translate([r*1.5*i,r*sqrt(3)/2*i,0])
									difference(){
										if(sides < 5){
											cylinder(h=height, r = r+th+(r*rmod/50), center = true, $fn = sides);
										} else {
											cylinder(h=height, r = r+(r*rmod/50), center = true, $fn = sides);
										}
										cylinder(h=height+1, r = r-th+(r*rmod/50), center = true, $fn = sides);
									}
							}
					}
			}
}

module hook(radius1, radius2, rim, height)
{
	difference()
	{
	oval(radius1, radius2, height, center=true);
		union()
		{
			oval(radius1-rim, radius2-rim, height+1, center=true);
			translate([radius1/2, 0, 0])
			{
				cube([radius1, radius2*2, height+1], center=true);
			}
			translate([0, radius2/2, 0])
			{
				cube([radius1*2, radius2, height+1], center=true);
			}
		}
	}
}
```