[User]
I'm looking to design a parametric spool holder for my Printrbot Simple Metal, one that mounts to the Z-stepper motor mount using one of the existing screws. I want to keep the spool vertical and not take up extra space on top of the printer. I've got the basic idea, and I'd like the design to be flexible for different spool sizes.

Here are the key parameters I envision:

*   **`holder_height`**: The thickness of the holder itself (z-height), probably around 16mm, but I want to be able to change this.
*   **`raiser_height`**: How far the spool holder is raised from the base, this is like how far it extends out from the mounting point. This should be between 20-100mm, I want to be able to tweak it.
*   **`base_thickness`**: The thickness of the mounting base where it attaches to the printer. This will determine the length of the screw needed, and I'd like to set this up so the user knows what screw length they will need based on this value.
*   **`end_cap_size`**: The diameter of the end caps that hold the spool in place, maybe 25mm to start, but this should be adjustable.
*   **`spool_length`**: The length of the spool support, which matches the width of the spool. I think starting around 92mm is good, but it needs to be parametric.
*   **`screw_diameter`**: The screw hole diameter for mounting the holder, probably 3.3mm for an M3 screw, but I want to have this as an option too.
*   **`screw_head_diameter`**: The countersink diameter, around 6mm, for the screw, but make this parametric
*   **`screw_head_depth`**: The depth of the countersink for the screw head. Parametric as well.

The design should have a central support for the spool, with end caps to hold the spool in place. It should also have a base that is secured to the printer's z-stepper mount. The design should include a slot for the screw that is going to secure it to the frame. I'm thinking two slots in the main body of the design to save filament and add some structural support, similar to the example I've attached, but ideally with the size and position of the slots as parametric options.

I'd like the scad file to use a library for things like the screw hole to make things easier. I am not sure which library is best, but maybe BOLTS?

I'd like to be able to customize all these dimensions easily in the OpenSCAD file. Can you generate that for me? I can't wait to print it out!

[Assistant]
simple_spool_holder.scad:
```

// thickness of the holder (z height)
height = 16;

// how far to raise the holder (20-100)
raiser = 35;

// base mount thickness (you need to 16 to this to get the M3 screw needed - ie, thickess of 9mm would need a M3d 25mm)
base_thickness = 5;

// end caps
cap_size = 25;

// length of the holder (thickness of the spool)
length = 92;

/* [Hidden] */

len = length + 6;

epsilon = 0.01;

module printrbot_holder()
{
    difference() {

        union() {
        intersection() {
            difference() {
                union() {

                    // spool support
                    translate([len/2, -6, 0])
                        cube([len, 2*cap_size, height+epsilon], center=true);

                }
            }

            difference()
            {
                union() {
                    rotate([90,0,90])
                    {
                        // round the support
                        translate([-3.0, 0, len/2 -cap_size/2])
                            cylinder(r=height/2 + 2, h=2*len, center=true , $fn=36);

                        // far end stop
                        translate([2, 0, len - 3/2]) {
                            intersection() {
                                cube([cap_size,cap_size,3], center=true);
                                cylinder(r=cap_size*0.5, h=3, center=true);
                            }
                        }

                        // base end stop
                        translate([2, 0, 3/2]) {
                            intersection() {
                                cube([cap_size,cap_size,3], center=true);
                                cylinder(r=cap_size*0.5, h=3, center=true);
                            }
                        }

                    }
                } // union

                rotate([90,0,90])
                    translate([-10, 0, len/2])
                    cylinder(r=height/2, h=len - 3 - 3 , center=true , $fn=4);
            }
        }

        difference()
        {
            union() {

                // attach lip
                translate([-46/2, -raiser,0])
                    cube([46, base_thickness, height], center=true);

                // raiser
                hull() {
                    translate([2,-(raiser+14)/2,0])
                        cube([4, (raiser+14), height+epsilon], center=true);

                    translate([10,0,0])
                    rotate([90,0,90])
                        intersection() {
                            cube([3, height, 3], center=true);
                                cylinder(r=cap_size*0.5, h=3, center=true);
                        }

                }

                hull() {
                    translate([-12,-raiser,0])
                        cube([2, 2, height+epsilon], center=true);

                    translate([26,0,0])
                    rotate([90,0,90])
                        intersection() {
                            cube([2, height, 3], center=true);
                                cylinder(r=cap_size*0.5, h=3, center=true);
                        }

                    translate([-36,-raiser,0])
                        cube([2, 2, height+epsilon], center=true);

                    translate([2,2,0])
                    rotate([90,0,90])
                        intersection() {
                            cube([2, height, 3], center=true);
                                cylinder(r=cap_size*0.5, h=3, center=true);
                        }

                    // bottom
                    #translate([-4,-raiser,0])
                    rotate([90,0,90])
                        intersection() {
                            cube([2, height, 3], center=true);
                                cylinder(r=cap_size*0.5, h=3, center=true);
                        }

                }

            }

            // attach screw
            translate([-40.25,-30,0])
                rotate([90,0,0])
                cylinder(r=3.3/2, h=20, $fn=24, center=true);

        }
    }

        hull() {
            translate([-24,-raiser + 5,0])
                cylinder(r=2, h=height+epsilon, $fn=24, center=true);

            translate([0,-6,0])
                cylinder(r=2, h=height+2*epsilon, $fn=24, center=true);
        }

        hull() {
            translate([-12,-raiser + 5,0])
                cylinder(r=2, h=height+epsilon, $fn=24, center=true);

            translate([12 - 6,-6 - 6,0])
                cylinder(r=2, h=height+2*epsilon, $fn=24, center=true);
        }

    }

}

rotate([0,0,-60])
    printrbot_holder();

```


[User]
Hey, I'm looking to design some parametric plug followers for a project, and I'd like to use OpenSCAD to do it. I've got some ideas about the basic shape and features, and I'd love it if you could help me create a parametric design.

Basically, I need a cylindrical plug follower with some customizable features, as well as an optional base plate and a support foot for better adhesion. The main cylinder's dimensions and height should all be configurable parameters. The top of the cylinder needs a notch or cutout that will be one of 3 types, center notch, a half moon notch, or a cylindrical hollow. For the center notch, I need to be able to control its width and depth, the half moon will use the plug follower diameter to compute it's size, and the hollow will have a notch width that will determine the thickness of the remaining cylinder section. For the optional base plate, I need to control its height, it should be a flat plate with rounded edges that is larger than the plug follower cylinder, and it needs to be centered with the plug follower. Finally I need a cylindrical support foot.

Here are the parameters I'm thinking of:

*   `plug_follower_height`: Overall height of the plug follower cylinder, including the base if generated.
*   `plug_follower_diameter`: Diameter of the plug follower cylinder.
*  `generate_base`: A boolean (0 or 1) to toggle the base plate.
*  `base_height`: Height of the base plate, if generated.
*   `plug_follower_type`: An integer (1, 2, or 3) to select the notch type (1=center notch, 2=half moon, 3=hollow).
*  `notch_width`: Width of the notch for type 1 followers, and width of the remaining section of the circle for type 3.
*   `notch_depth`: Depth of the notch/cutout from the top of the follower.
*   `support_foot_diameter`: Diameter of the cylindrical support foot.
*   `support_foot_height`: Height of the cylindrical support foot.

I need the design to include three modules: one that generates the main plug follower, one for the optional base, and one for the support foot.

The notch should be a cut out.

The base needs to be a rectangular plate with two half cylinders on opposing ends, it needs to be sized so the base extends out past the main cylinder. It should also be centered on the main cylinder.

The support foot should be on the bottom of the base, or the plug follower if no base is specified, and be centered on the bottom of the plug follower.

Could you also make sure the whole thing is rotated so that when printed, the base or plug follower bottom is on the build plate? It would be nice if it were rotated so that the support foot has a rotation of 0.

I think the basic OpenSCAD code should do the trick, I don't need any fancy libraries for this.

Thanks a bunch!

[Assistant]
PF_Generator.scad:
```
//Height of plug follower, if base is generated this height includes the base
plug_follower_height = 75;
//Diameter of plug follower
plug_follower_diameter = 14;
//Generate base plate, 0 = no base, 1 = base
generate_base = 1;
//Height of Base, 2mm default
base_height = 2;
//Type of follower 1 = center notch, 2 = Half moon, 3 = Hollow
plug_follower_type = 1;
//Determines width of notch for type 1 followers and width of keyway for type 3 followers
notch_width = 3;
//Determines depth of reccess for all types
notch_depth = 15;

module plug_notch(){
    translate([0,0,plug_follower_height+1-notch_depth+(notch_depth/2)]) cube([plug_follower_diameter+2,notch_width,notch_depth+1],center=true);
}

module plug_moon(){
    translate([0,(plug_follower_diameter/2)/2,plug_follower_height+1-notch_depth+(notch_depth/2)]) cube([plug_follower_diameter+2,plug_follower_diameter/2,notch_depth+1],center=true);
}

module plug_hollow(){
    translate([0,0,plug_follower_height-notch_depth]) cylinder(r=(plug_follower_diameter-1)/2,h=notch_depth+1,$fn=40);

    translate([(plug_follower_diameter-1)/2,0,(plug_follower_height-notch_depth)+(notch_depth/2)+1]) cube([notch_width,notch_width,notch_depth+1],center=true);
}

module make_base(){
translate([0,0,base_height/2]) cube([plug_follower_diameter + 2, plug_follower_diameter + 20, base_height],center=true);
translate([0,(plug_follower_diameter + 20)/2,0]) cylinder(r=(plug_follower_diameter + 4)/2,h=base_height);
translate([0,-((plug_follower_diameter + 20)/2),0]) cylinder(r=(plug_follower_diameter + 4)/2,h=base_height);
}

difference(){
cylinder(r=plug_follower_diameter/2,plug_follower_height,$fn=40);

if (plug_follower_type==1) plug_notch();
if (plug_follower_type==2) plug_moon();
if (plug_follower_type==3) plug_hollow();
}

if (generate_base==1) make_base();

```


[User]
Hey, I'm looking to create a parametric maze puzzle box similar to one I saw designed by benno de grote and modeled by TJWeb. I've got a simple base container module in mind that I've started in OpenSCAD. I'd really like you to build this out and make it fully parametric.

Essentially, I need a rectangular box with a recessed area inside, so there's an inner wall all the way around. The outer dimensions should be controlled by `outer_x`, `outer_y`, and `outer_z`, while the inner dimensions will be controlled by `inner_x`, `inner_y`, and `inner_z`. The wall thickness should be variable with `wall_thickness`. The floor of the recessed area should be `floor_thickness`. The bottom of the box should also have a thickness of `base_thickness`. Think of it as two boxes, one inside the other, where you hollow out the inside.

I also need a top for this box. The top should have dimensions `top_x` and `top_y` and a thickness of `top_thickness`. The top should have a lip extending downwards that fits snugly inside the box. This lip's depth will be `lip_depth` and the lip width, all the way around should be controlled by `lip_width`.

Finally, I need a maze section that fits inside the box. This maze should be controlled by `maze_x`, `maze_y` and `maze_z` and will have paths with a `path_width`. The maze walls should have a `maze_wall_thickness`. For now, let's just do a simple rectangular maze (maybe with a single, circuitous path) and we can refine the maze later. The maze will be designed to sit on the floor of the recessed area.

I think it would be easiest if you used functions for creating the box, the lid, and the maze, and then a final module that puts all the pieces together. I'm hoping you can generate this as parametric OpenSCAD files. I don't need any libraries for this at the moment, though if you think that's the best way, just let me know.

[Assistant]
print_c_layer1_custom.scad:
```
//Depth inside
numerical_slider = 20; // [10:200]
height=numerical_slider;

module puzzle_container() {
  difference() {
    difference() {
      cube([90,135,height+10]);
      translate([5, 5, 5])
        cube([80,125,height+6]);
    }
    translate([5, 5, height+5])
      cube([80,135,6]);
  }
}
puzzle_container();
```


[User]
Hi, I'm looking to create a parametric mirror clip for a project, and I'd like to have it designed in OpenSCAD. I've used a version of Matt Stultz's parametric clip before, and I'm hoping to get something similar but with a few particular features, and I want it to be entirely parametric.

Essentially, I need a clip that will hold a mirror in place. I want to be able to adjust the following:

*   **Mirror Thickness:** I need to be able to specify the thickness of the mirror it will be holding. I'd like this to be able to range from 2mm to 12mm in 0.5mm increments.
*   **Overhang:**  This is the amount the clip extends over the edge of the mirror. This should also be adjustable and it should be able to range from 2mm to 15mm also in 0.5mm increments.
*   **Countersink:**  I need the option to include or exclude a countersink for the screw head. If included, it should be designed for a #6 flat head drywall screw.

The basic shape will be a rectangular prism with a cutout for the mirror and a hole for the screw. I want the "screw block" area to be a 15x15mm area, and the overall clip thickness should be 5mm. The screw diameter should be assumed to be 5mm. The countersink, when enabled, should create a smooth surface with the screw head.

I'm not sure if this is something that's easy to implement, but I'd appreciate it if you could also include the MCAD library for some of the basic shapes and features, so that it is easily uploaded to Thingiverse. I'd also need the file to have comments to make it easy to understand.

Let me know if you need any more information.

[Assistant]
myMirrorClip-v1.1.scad:
```
//
// Original code from Matt Stultz's
// Parametric Mirror Clip
// http://www.thingiverse.com/thing:16845
//
// Mods by Rob Lazure, May 26, 2015
// added overhang for different mirror borders
//     countersink screw option for #6 flat head dry wall screws
//   -------------------------------------------
//   modified to have 0.5 mm increments in the sliders
//   Aug 9, 2018
//   -------------------------------------------

///// inputs ////////////////

// How thick is the mirror?
MirrorThickness = 5; // [2:0.5:12]

// Holding over the mirror
Overhang = 6; // [2:0.5:15]

// Do you want to use a countersink for the screw?
countersink = "yes"; // [yes,no]

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

/* [Hidden] */
use <MCAD/boxes.scad>;  // for Thingiverse
// include  <mcad/boxes.scad>;  // for Openscad on PC

ScrewDiameter = 5;
ScrewBlock = 15;
ClipThickness = 5;

BoxLength= ScrewBlock + Overhang;
CenterPos = BoxLength/2;
Shift =  CenterPos - ScrewBlock;
countersinkheight = (ClipThickness + MirrorThickness)/2 ;

include  <mcad/boxes.scad>;  // for Openscad

// Clip without the countersink - keeping a 15 x 15 area for the screw
module clip()
{
difference()
{
 translate([Shift,0,0])roundedBox([ScrewBlock+Overhang,14,ClipThickness+MirrorThickness],4,true);
translate([-7.5,0,0]) cylinder(ClipThickness+MirrorThickness+1,ScrewDiameter/2,ScrewDiameter/2,true);
translate([8,0,ClipThickness/2]) cube([16,15,MirrorThickness],center=true);
    translate([0,-7.5,(ClipThickness+MirrorThickness)/2-1]) cube([16,15,2],center=false); // trim for presentation
}
}
module printClip()
{

if (countersink=="yes")
 {
    difference() {

        clip();
        translate([-7.5,0,-countersinkheight]) cylinder(h=5, r1=5, r2=ScrewDiameter/2, center= false,$fn=10);
}
}
    else clip();
}

// orient for the slicer plate
 translate([0,0,(ClipThickness+MirrorThickness)/2]) printClip();
```


[User]
Okay, I'd like a custom can stabilizer, something that keeps my soda from tipping over. I've got some specific parameters in mind, and I'd like it to be adjustable in OpenSCAD. I'm aiming for something that looks a bit futuristic, maybe with some interesting geometric patterns.

First, the basic structure should be a series of supports radiating outwards from a central ring, with a base at the bottom. I'd like to be able to adjust the number of these supporting "legs" or "arms" - call them `num_sides`. I'd like to adjust the `num_sides` to anywhere between 2 and 16 sides.

I'd like to have the option of having a solid base, or a more open web-like structure. I want a flag called `solid_base` to control this which can either be set to `0` for a web or `1` for a solid base.

I'm using standard soda cans, so the diameter of the can needs to be settable with the `can_diam` parameter. I need a value of 68mm to work for typical cans but I would like that value to be adjustable between 10 and 200mm.

The height of the upper ring, the one that holds the can, is also important, so I need `ring_height` to be adjustable, between 10 and 200mm.

The distance from the can to the base of the stabilizer, essentially how wide the base is, I want to control with `extra_rad`. I should be able to adjust `extra_rad` from 10.0mm to 100.0mm, in steps of 0.2mm.

For aesthetics of the base, if it is not a solid base, I'd like the option to have a middle ring that repeats a number of times. So I'd like to be able to use `base_mid_ring_mult` to control this repetition, between 1 and 4.

The diameter of all of the support rods, including those that make up the base, needs to be adjustable via the `rod_diam` parameter. I'm thinking between 2 and 20mm.

I want to be able to scale up or down the base rods with `base_widening`, with adjustments between 1.0 and 10.0 with steps of 0.1.

Lastly, I want to control the size of the spheres on the outer corner of the support structures with an `outer_sphere_widening` parameter, adjustable from 1.0 to 10.0 in steps of 0.1.

To recap:
*   `num_sides`: Integer, number of support legs (2-16)
*   `solid_base`: Boolean, whether the base is a solid disk or web-like (0 for web, 1 for solid)
*   `can_diam`: Diameter of the can (10-200mm)
*   `ring_height`: Height of the upper ring (10-200mm)
*   `extra_rad`: Distance from the can to base of the stabilizer (10.0-100.0mm, in 0.2mm steps)
*   `base_mid_ring_mult`: Aesthetics of mid-ring for web base (1-4)
*   `rod_diam`: Diameter of support rods (2-20mm)
*   `base_widening`: Scaling of rods in the base layer (1.0-10.0, in 0.1 steps)
*   `outer_sphere_widening`: Scaling of corner spheres (1.0-10.0, in 0.1 steps)

I'd like all calculations to be done in the OpenSCAD code, so no precomputed values need to be provided.

I’m looking for the code to be written without any third party libraries. I would also like the code to include a module called `stabilizer()` that contains the entire design and a difference operation that removes excess portions of the angled support rods extending from the base. I think the `piece()` module and other helper modules should be defined as well.

Thanks!

[Assistant]
CanStabilizer.scad:
```
/* [Main] */
$fn = 128;

// How many sides in your polygon?
num_sides = 7; // [2:16]

// Make base a solid polygon instead of a web.
solid_base = 0; // [0:Web, 1:Solid]

// Diameter of the can, in mm.  68 works for a standard soda can in the US.
can_diam = 68; // [10:200]

// Height of the top ring, in mm.
ring_height = 50; // [10:200]

// Distance away from the can for the base of the stabilizer, in mm.
extra_rad = 25.4; // [10.0:0.2:100.0]

/* [Tweaks] */
// An aesthetic choice for the middle base ring (only if solid_base==false)
base_mid_ring_mult = 2; // [1:4]

// Diameter of the various rods, in mm.  Recommend 4 or higher for strength.
rod_diam = 4; // [2:20]

// Scaling factor for rods in the base layer.  Increase if you need more material in the base for adhesion (or just like the look better)
base_widening = 1.0; // [1.0:0.1:10.0]

// An additional scaling for the spheres inthe corners.
outer_sphere_widening = 5.0; // [1.0:0.1:10.0]

// Derived:
step = 360/num_sides;
can_rad = can_diam/2;
base_rad = can_rad + extra_rad;
base_diam = base_rad*2;
rod_rad = rod_diam/2;
base2can = (base_rad - can_rad) - rod_rad;
rod_height = sqrt(ring_height*ring_height + base2can*base2can);
vtheta = -atan2(base2can,ring_height);
htheta = 90 - (180-step)/2;
base_seg = 2*base_rad*sin(step/2);

module Torus(major,minor) {
    rotate_extrude(convexity=4) {
        translate([major,0,0]) {
            circle(minor);
        }
    }
}

module Bushing(outer,inner,height,center) {
    rotate_extrude(convexity=4) {
        translate([inner,center?-height/2:0,0]) {
            square([outer-inner,height]);
        }
    }
}

module piece() {
    kludge = rod_diam*base_widening*outer_sphere_widening + 1;

    difference() {
        union() {
            rotate([0,vtheta,0]) cylinder(d=rod_diam, h=rod_height);

            translate([-base2can,0,0])
            cylinder(d=rod_diam,h=ring_height);

            if(!solid_base) {
                rotate([-90,0,htheta])
                cylinder(r=rod_rad*base_widening, h=base_seg);

                rotate([-90,0,90])
                cylinder(r=rod_rad*base_widening, h=base_rad);

                sphere(r=rod_rad*base_widening*outer_sphere_widening);
            }
        }

        rotate([0,vtheta*cos(htheta),htheta])
        translate([rod_rad*base_widening,-kludge/2,-ring_height/2])
        cube([kludge, kludge, ring_height]);

        rotate([0,vtheta*cos(htheta),-htheta])
        translate([rod_rad*base_widening,-kludge/2,-ring_height/2])
        cube([kludge, kludge, ring_height]);
    }
}

module inner_wings_top() {
    difference() {
        Bushing(outer=can_rad+rod_rad+rod_rad/2,
                inner=can_rad+rod_rad-rod_rad/2,
                height=ring_height);

        // minus angled wings so we're only printing what we have to:
        for (i=[0:num_sides]) {
            angle = step * i + step/2; // offset halfway between supports
            rotate([0,0,angle])
            translate([can_rad,0,-base_diam*sqrt(2)+ring_height])
            rotate([45,0,0])
            cube([can_rad,2*base_diam,2*base_diam],center=true);
        }
    }
}

module stabilizer() {
    // The main pieces:
    for (i = [0:num_sides]) {
        angle = step * i;

        translate([base_rad*cos(angle),base_rad*sin(angle),0])
        rotate([0,0,angle])
        piece();
    }

    // the ring at the top:
    translate([0,0,ring_height])
    Torus(major=can_rad+rod_rad,minor=rod_rad,$fn=64);

    // That's going to need some support to print...
    inner_wings_top();
    translate([0,0,ring_height]) rotate([180,0,0]) inner_wings_top();

    // the base:
    if(solid_base) {
        cylinder(d=base_diam+rod_diam,
                 h=rod_diam,
                 $fn=num_sides);
    } else {
        // Option 1:
        //translate([0,0,rod_rad])
        //Torus(major=can_rad+rod_rad,minor=rod_rad);

        // Option 2:
        Torus(major=can_rad+rod_rad,
              minor=rod_rad*base_widening,
              $fn = num_sides*base_mid_ring_mult);
    }
}

// A can, for reference:
//translate([0,0,rod_rad*base_widening])
//%cylinder(d=can_diam-1, h=110);
//%Bushing(outer=(can_diam-1)/2, inner=20, height=110);

//scale([0.25,0.25,0.25])
difference() {
    stabilizer();

    // Trim off bits of the tilted vertical rods that
    // poke through the base:
    translate([-base_diam,-base_diam,-2*ring_height])
    cube([2*base_diam,2*base_diam,2*ring_height]);
}

```


[User] Okay, I'm looking to create a customizable model of Ikea's Expedit/Kallax shelving units, but I'd like something a little more flexible than just the one that's already out there. I'm picturing being able to specify, in addition to the usual number of rows and columns, the specific dimensions of both the outer and inner frame pieces, and not just using a global `cubeSize`. I'd also like to be able to choose the size and position of the individual compartments. I'd need the option to include doors, drawers and Lekman boxes as inserts, and be able to specify their exact positions within the unit, and choose whether they're on the left or right side of a compartment for the doors. I want a separate module for each of the major parts - shelves, drawers, doors, and boxes, and they should all support print and display builds. Finally, for the print mode, I’d like to have an option to add little pegs on the insert to fit into corresponding holes in the shelving frame, instead of relying on friction fitting, to make it more stable. I don't have any specific libraries I'd like to use, but I think this would be a good place to utilize some functions from the `BOSL` library if it's appropriate. Can you generate the OpenSCAD files for that?

[Assistant]
expedit-kallax.scad:
```
// -------------------------------------------------------------------------------------------------

// Parametric Ikea Expedit/Kallax shelving units scale model

// © anton@cking.be
//   https://www.youmagine.com/users/ant0ni0
//   https://www.thingiverse.com/ant0ni0

// all sizes are in mm

// GLOBAL PARAMETERS -------------------------------------------------------------------------------

/* [Shelves] */

type = "Expedit"; // [Expedit,Kallax]

scale = 0.1; // [1:1/1,0.5:1/2,0.2:1/5,0.1:1/10,0.05:1/20,0.02:1/50,0.01:1/100,0.005:1/200]

color = "White"; // [White,Birch,Green,Pink,Red,Black]

// #compartments in horizontal direction
cols = 4; // [1:5]

// #compartments in vertical direction
rows = 4; // [1:5]

/* [Build] */

build = "Display"; // [Display,Print]

// add some door inserts?
doors = "Yes"; // [Yes,No]

// add some drawers inserts?
drawers = "Yes"; // [Yes,No]

// add some Lekman boxes?
boxes = "Yes"; // [Yes,No]

/* [Hidden] */

yes = true;
no = false;

right = 1;
left  = 2;

white = [1.00, 1.00, 1.00];
birch = [0.82, 0.75, 0.60];
green = [0.75, 0.85, 0.70];
pink  = [0.80, 0.71, 0.74];
red   = [1.00, 0.10, 0.10];
black = [0.12, 0.12, 0.08];

flat  = no;     // use no for display, yes for 3D printing

cubeSize = 335; // same for expedit and kallax
depth    = 385;

// CALCULATED VALUES -------------------------------------------------------------------------------

de = (type == "Expedit") ? 50 : 40; // thickness of outside boards
di = 16; // thickness of shelves

// BUILD -------------------------------------------------------------------------------------------

// uncomment one of the following:
custom(); // whatever what's been chosen in Customizer
//demo1();
//demo2();
//demo3();
//shelves(1,4);
//door();
//drawers();
//lekman();

// FUNCTIONS ---------------------------------------------------------------------------------------

function clr(name) =
    name == "White" ? white :
    name == "Birch" ? birch :
    name == "Green" ? green :
    name == "Pink"  ? pink  :
    name == "Red"   ? red   :
    name == "Black" ? black : white;

// MODULES -----------------------------------------------------------------------------------------

module custom()
{
    clr = clr(color);

    shelves(cols,rows,clr);

    if (doors == "Yes")
    {
        row = min(4,rows);
        door(1,row,clr,right);
        if (cols > 1)
            door(cols,row,clr,left);
    }

    if (drawers == "Yes")
    {
        row = max(1,min(3,rows-1));
        first = min(2,cols);
        last = max(1,cols-1);
        for (col=[first:last])
            drawers(col,row,clr);
    }

    if (boxes == "Yes")
    {
        if (rows > 1 || (doors != "Yes" && drawers != "Yes"))
        {
            for (col=[1:cols])
                lekman(col,1);
        }
    }
}

module demo1()
{
    shelves(5,5);

    for (col=[1:1:5])
        lekman(col,2,white);
}

module demo2()
{
    shelves(4,4, birch);

    door(1,3, black, right);
    drawers(2,3, black);
    drawers(3,3, black);
    door(4,3, black, left);

    for (col=[1,4])
        for (row=[1,2])
            lekman(col,row);
}

module demo3()
{
    // shelves(5,1, pink);
    drawers(1);
    door(2);
    lekman(3);
    door(4, open=left);
}

module shelves(w, h, color=color)
{
    wi = w * cubeSize + (w-1) * di;
    hi = h * cubeSize + (h-1) * di;

    we = wi + 2 * de;
    he = hi + 2 * di;

    color(color)
    scale(scale)
    rotate(build=="Print" ? [0,0,0] : [90,0,0])
    union()
    {
        cube([we,de,depth]);
        translate([0,de,0]) cube([de,hi,depth]);
        translate([wi+de,de,0]) cube([de,hi,depth]);
        translate([0,hi+de,0]) cube([we,de,depth]);

        for (i=[1:1:w-1])
            translate([de-di+i*(cubeSize+di),de,0]) cube([di,hi,depth]);

        for (i=[1:1:h-1])
            translate([de,de-di+i*(cubeSize+di),0]) cube([wi,di,depth]);
    }
}

module drawers(col=1, row=1, color=color)
{
    slack  = 2; // increase this if the printed part doesn't fit into the space
    margin = 6;

    w = cubeSize - 2 * margin;
    h = (cubeSize - 3 * margin) / 2;

    x = de + (col-1) * (cubeSize + di);
    y = de + (row-1) * (cubeSize + di);

    scale(scale)
    rotate(build=="Print" ? [0,0,0] : [90,0,0])
    {
        union()
        {
            color(color) translate([x+slack,y,0]) cube([cubeSize-2*slack,cubeSize-2*slack,depth-di]);
            for (i=[0,1])
            {
                color(color) translate([x+margin,y+margin+i*(h+margin),depth-di]) cube([w,h,di]);
                color([0.8,0.8,0.8]) translate([x+cubeSize/2,y+margin+h/2+i*(h+margin),depth]) cylinder(d=12,h=12);
            }
        }
    }
}

module door(col=1, row=1, color=color, open=right)
{
    slack  = 2;
    margin = 6;

    w = cubeSize - 2 * margin;

    x = de + (col-1) * (cubeSize + di);
    y = de + (row-1) * (cubeSize + di);

    xKnob = (open==right) ? cubeSize-30 : 30;

    scale(scale)
    rotate(build=="Print" ? [0,0,0] : [90,0,0])
    {
        union()
        {
            color(color) translate([x+slack,y,0]) cube([cubeSize-2*slack,cubeSize-2*slack,depth-di]);
            color(color) translate([x+margin,y+margin,depth-di]) cube([w,w,di]);
            color([0.8,0.8,0.8]) translate([x+xKnob,y+margin+w/2,depth]) cylinder(d=12,h=12);
        }
    }
}

module lekman(col=1, row=1, color=[0.3,0.3,0.3,0.8])
{
    w = 330;
    d = 370;

    x = de + (col-1) * (cubeSize + di) + ((cubeSize - w) / 2);
    y = de + (row-1) * (cubeSize + di);
    z = (depth - d) / 2;

    color(color)
    scale(scale)
    rotate(build=="Print" ? [0,0,0] : [90,0,0])
    {
        difference()
        {
            union()
            {
                for (i=[0,1])
                {
                    translate([x,y,z+i*(d-di)]) cube([w,w,di]);
                    translate([x+i*(w-di),y,z+di]) cube([di,w,d-2*di]);
                }
                translate([x+di,y,z+di]) cube([w-2*di,di,d-2*di]);
            }
            translate([x+cubeSize/2,y+cubeSize/2,0])
            {
                for (dx=[-50:40:40])
                    for (dy=[-50:40:40])
                        translate([dx,dy,-1])
                        cube([20,20,depth+2]);
            }
        }
    }
}

// -------------------------------------------------------------------------------------------------

```


[User]
Hey! I'm looking to design some customizable Power Rings, you know, like the ones from Green Lantern? I want to be able to adjust the ring size, the band thickness, how far it extends on the finger, and the size and depth of the emblem. It needs to handle the different corps emblems too: Red, Orange, Yellow, Green, Blue, Indigo, Violet, Black, and White.

Ideally, I’d like a parametric design, so I can easily tweak these parameters. For ring sizing, I'll use US standard sizes, so it'll need a lookup function for the inner radius based on those sizes. Think of it like a function that takes in the ring size as an integer, and returns a float for the radius.

The emblem also needs to be scaled appropriately, so I need another lookup table that takes in the emblem radius and returns a scale factor as a float.

The emblems themselves will be extruded shapes, and I've got a general idea of what they look like, so I can handle providing those shapes individually as modules, like `RL_Logo()` for the Red Lantern emblem etc. I can also provide some reference images if needed.

I'd also like a main module, say `Lantern_Corps_Ring()`, that selects which emblem to use, based on a string variable like "Red Lantern Corps - Rage". This will also be used to color the ring based on the same string, just using a `color()` module.

I'm imagining the main ring to be a modified sphere with a cutout, and a recessed area for the emblem. The size of the ring should be labeled on the inside of the band as well, extruded text. I am not worried about it visually "breaking through" to the outside of the band, as this is just for reference. I don't need any external libraries or anything like that, I think, just standard OpenSCAD modules.

So, could you generate the OpenSCAD code for all this, please?

[Assistant]
Power_Ring_v1.scad:
```
/*[Global]*/

//Which Power Ring would you wear?
affiliation = "Green Lantern Corps - Will"; //[Red Lantern Corps - Rage,Orange Lantern Corps - Avarice,Sinestro Corps (Yellow) - Fear,Green Lantern Corps - Will,Blue Lantern Corps - Hope,Indigo Tribe - Compassion,Star Sapphires (Violet) - Love,Black Lantern Corps - Death,White Lantern Corps - Life,Blank]
//Use standard American ring sizes. If you need help, go to http://findmyringsize.com/ |
ring_size = 16; //[3:.5:16]
//The thickness of the Power Ring's band. |
ring_thickness = 2.5; //[1:1:5]
//How far the Power Ring extends on your finger. This is a multiplier, so it will not relate directly to mm. |
ring_length_modifier = .5; //[.1:.1:1]
//The radius of your Power Ring's emblem. |
emblem_radius = 10; //[4:1:15]
//How far inset your Power Ring's emblem is.|
emblem_depth = 3; //[1:1:5]

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

function ring_radius(ring_size) = lookup(ring_size,[
    [3,(14.0/2)],
    [4,(14.8/2)],
    [5,(15.6/2)],
    [6,(16.45/2)],
    [7,(17.3/2)],
    [8,(18.2/2)],
    [9,(19.0/2)],
    [10,(19.8/2)],
    [11,(20.6/2)],
    [12,(21.4/2)],
    [13,(22.2/2)],
    [14,(23.0/2)],
    [15,(23.8/2)],
    [16,(24.6/2)]
]);
function emblem_scale(emblem_radius) = lookup(emblem_radius,[
    [4,.336],
    [5,.448],
    [6,.565],
    [7,.675],
    [8,.785],
    [9,.895],
    [10,1.005],
    [11,1.125],
    [12,1.235],
    [13,1.345],
    [14,1.456],
    [15,1.567],
]);

logo_border = 1;
e = .001; //epsilon
$fn = 50;

Lantern_Corps_Ring();

//Logo Border Guide
//difference(){
//    circle(r = emblem_radius);
//    circle(r = emblem_radius - logo_border);
//}

module Lantern_Corps_Ring(){
    if(affiliation == "Red Lantern Corps - Rage"){
        color("darkred"){
            BlankRing();
        }
    }
    if(affiliation == "Orange Lantern Corps - Avarice"){
        color("darkorange"){
            BlankRing();
        }
    }
    if(affiliation == "Sinestro Corps (Yellow) - Fear"){
        color("gold"){
            BlankRing();
        }
    }
    if(affiliation == "Green Lantern Corps - Will"){
        color("forestgreen"){
            BlankRing();
        }
    }
    if(affiliation == "Blue Lantern Corps - Hope"){
        color("darkblue"){
            BlankRing();
        }
    }
    if(affiliation == "Indigo Tribe - Compassion"){
        color("darkslateblue"){
            BlankRing();
        }
    }
    if(affiliation == "Star Sapphires (Violet) - Love"){
        color("darkviolet"){
            BlankRing();
        }
    }
    if(affiliation == "Black Lantern Corps - Death"){
        color("dimgray"){
            BlankRing();
        }
    }
    if(affiliation == "White Lantern Corps - Life"){
        color("gainsboro"){
            BlankRing();
        }
    }
    difference(){
        translate([0,-ring_radius(ring_size) - ring_thickness - emblem_depth/2 - e,0]){
            rotate([90,0,0]){
                if(affiliation == "Red Lantern Corps - Rage"){
                    color("red"){
                        RL_Logo();
                    }
                }
                if(affiliation == "Orange Lantern Corps - Avarice"){
                    color("orange"){
                        OL_Logo();
                    }
                }
                if(affiliation == "Sinestro Corps (Yellow) - Fear"){
                    color("yellow"){
                        YL_Logo();
                    }
                }
                if(affiliation == "Green Lantern Corps - Will"){
                    color("lime"){
                        GL_Logo();
                    }
                }
                if(affiliation == "Blue Lantern Corps - Hope"){
                    color("blue"){
                        BL_Logo();
                    }
                }
                if(affiliation == "Indigo Tribe - Compassion"){
                    color("mediumslateblue"){
                        IL_Logo();
                    }
                }
                if(affiliation == "Star Sapphires (Violet) - Love"){
                    color("violet"){
                        VL_Logo();
                    }
                }
                if(affiliation == "Black Lantern Corps - Death"){
                    color("black"){
                        KL_Logo();
                    }
                }
                if(affiliation == "White Lantern Corps - Life"){
                    color("white"){
                        WL_Logo();
                    }
                }
            }
        }
        translate([0,-ring_radius(ring_size) - ring_thickness - emblem_depth/2 - e,0]){
            rotate([90,0,0]){
                difference(){
                    cylinder(r = emblem_radius * 2, h = emblem_depth * 2, center = true);
                    cylinder(r = emblem_radius - logo_border + e, h = emblem_depth * 2, center = true);
                }
            }
        }
    }
}
module RL_Logo(){
    scale([emblem_scale(emblem_radius),emblem_scale(emblem_radius),1]){
        linear_extrude(height = emblem_depth, center = true){
            //Inner Circle
            translate([0,-2.5,0]){
                difference(){
                    circle(r = (10 * .55));
                    circle(r = (10 * .55) - 1);
                }
            }
            //Right Bottom Line
            translate([5,-2.5,0]){
                square([1,11], center = true);
            }
            //Left Bottom Line
            translate([-5,-2.5,0]){
                square([1,11], center = true);
            }
            //Right Angled Line
            translate([5.433,3.616,0]){
                rotate([0,0,-30]){
                    square([1,2], center = true);
                }
            }
            //Left Angled Line
            translate([-5.433,3.616,0]){
                rotate([0,0,30]){
                    square([1,2], center = true);
                }
            }
            //Right Top Line
            translate([5.8659,6.232,0]){
                square([1,4], center = true);
            }
            //Left Top Line
            translate([-5.8659,6.232,0]){
                square([1,4], center = true);
            }
        }
    }
}
module OL_Logo(){
    scale([emblem_scale(emblem_radius),emblem_scale(emblem_radius),1]){
        linear_extrude(height = emblem_depth, center = true){
            //Inner Circle
            difference(){
                circle(r = (10 * .55));
                circle(r = (10 * .55) - 1);
            }
            //Top Left Line
            rotate([0,0,150]){
                translate([(10 * .55) + 1.5,0,0]){
                    square([4,1], center = true);
                }
            }
            //Top Right Line
            rotate([0,0,30]){
                translate([(10 * .55) + 1.5,0,0]){
                    square([4,1], center = true);
                }
            }
            //Bottom Left Line
            rotate([0,0,-130]){
                translate([(10 * .55) + 1.5,0,0]){
                    square([4,1], center = true);
                }
            }
            //Bottom Right Line
            rotate([0,0,-50]){
                translate([(10 * .55) + 1.5,0,0]){
                    square([4,1], center = true);
                }
            }
            translate([0,10,0]){
                rotate([0,0,-90]){
                    difference(){
                        circle($fn = 3, r = 10);
                        translate([-2,0,0]){
                            circle($fn = 3, r = 10);
                        }
                    }
                }
            }
        }
    }
}
module YL_Logo(){
    scale([emblem_scale(emblem_radius),emblem_scale(emblem_radius),1]){
        linear_extrude(height = emblem_depth, center = true){
            //Inner Circle
            difference(){
                circle(r = (10 * .55));
                circle(r = (10 * .55) - 1);
            }
            difference(){
                //Outer Circle
                difference(){
                    circle(r = (10 * .55) + 2.5);
                    circle(r = (10 * .55) + 1.5);
                }
                union(){
                    //Bottom Middle Cutout
                    rotate([0,0,-90]){
                        translate([(10 * .55) + .75,0,0]){
                            square([3.5,3.5], center = true);
                        }
                    }
                    //Top Right Cutout
                    rotate([0,0,45]){
                        translate([(10 * .55) + .75,0,0]){
                            scale([1,.5,1]){
                                rotate([0,0,180]){
                                    circle($fn = 3, r = 3.5, center = true);
                                }
                            }
                        }
                    }
                    //Top Left Cutout
                    rotate([0,0,135]){
                        translate([(10 * .55) + .75,0,0]){
                            scale([1,.5,1]){
                                rotate([0,0,180]){
                                    circle($fn = 3, r = 3.5, center = true);
                                }
                            }
                        }
                    }
                }
            }
            //Top Left Outer Line
            rotate([0,0,145]){
                translate([(10 * .55) + 3,0,0]){
                    square([3,1], center = true);
                }
            }
            //Top Right Outer Line
            rotate([0,0,35]){
                translate([(10 * .55) + 3,0,0]){
                    square([3,1], center = true);
                }
            }
            //Top Left Inner Line
            rotate([0,0,105]){
                translate([(10 * .55) + .75,0,0]){
                    square([3.5,1], center = true);
                }
            }
            //Top Right Inner Line
            rotate([0,0,75]){
                translate([(10 * .55) + .75,0,0]){
                    square([3.5,1], center = true);
                }
            }
            //Bottom Left Line
            rotate([0,0,-105]){
                translate([(10 * .55) + .75,0,0]){
                    square([3.5,1], center = true);
                }
            }
            //Bottom Right Line
            rotate([0,0,-75]){
                translate([(10 * .55) + .75,0,0]){
                    square([3.5,1], center = true);
                }
            }
        }
    }
}
module GL_Logo(){
    scale([emblem_scale(emblem_radius),emblem_scale(emblem_radius),1]){
        linear_extrude(height = emblem_depth, center = true){
            difference(){
                circle(r = (10 * .55));
                circle(r = (10 * .55) - 2);
            }
            difference(){
                union(){
                    translate([0,10 - 2 * 2.2,0]){
                        square([10 + 2,2], center = true);
                    }
                    translate([0,-10 + 2 * 2.2,0]){
                        square([10 + 2,2], center = true);
                    }
                }
                union(){
                    translate([(10 + 2)/2 + .8,(10 * .55),0]){
                        rotate([0,0,110]){
                            circle($fn = 3, r = 2);
                        }
                    }
                    translate([-(10 + 2)/2 - .8,(10 * .55),0]){
                        rotate([0,0,70]){
                            circle($fn = 3, r = 2);
                        }
                    }
                    translate([(10 + 2)/2 + .8,-(10 * .55),0]){
                        rotate([0,0,130]){
                            circle($fn = 3, r = 2);
                        }
                    }
                    translate([-(10 + 2)/2 - .8,-(10 * .55),0]){
                        rotate([0,0,50]){
                            circle($fn = 3, r = 2);
                        }
                    }
                }
            }
        }
    }
}
module BL_Logo(){
    scale([emblem_scale(emblem_radius),emblem_scale(emblem_radius),1]){
        linear_extrude(height = emblem_depth, center = true){
            //Inner Circle
            difference(){
                circle(r = (10 * .55));
                circle(r = (10 * .55) - 1);
            }
            difference(){
                //Outer Circle
                difference(){
                    circle(r = (10 * .55) + 2.5);
                    circle(r = (10 * .55) + 1.5);
                }
                union(){
                    //Top Right Cutout
                    rotate([0,0,65]){
                        translate([(10 * .55) + .75,0,0]){
                            scale([1,.3,1]){
                                rotate([0,0,180]){
                                    circle($fn = 3, r = 4, center = true);
                                }
                            }
                        }
                    }
                    //Top Left Cutout
                    rotate([0,0,115]){
                        translate([(10 * .55) + .75,0,0]){
                            scale([1,.3,1]){
                                rotate([0,0,180]){
                                    circle($fn = 3, r = 4, center = true);
                                }
                            }
                        }
                    }
                    //Bottom Right Cutout
                    rotate([0,0,-65]){
                        translate([(10 * .55) + .75,0,0]){
                            scale([1,.3,1]){
                                rotate([0,0,180]){
                                    circle($fn = 3, r = 4, center = true);
                                }
                            }
                        }
                    }
                    //Bottom Left Cutout
                    rotate([0,0,-115]){
                        translate([(10 * .55) + .75,0,0]){
                            scale([1,.3,1]){
                                rotate([0,0,180]){
                                    circle($fn = 3, r = 4, center = true);
                                }
                            }
                        }
                    }
                }
            }
            //Top Middle Line
            rotate([0,0,90]){
                translate([(10 * .55) + .75,0,0]){
                    square([3.5,1], center = true);
                }
            }
            //Top Right Line
            rotate([0,0,120]){
                translate([(10 * .55) + .75,0,0]){
                    square([3.5,1], center = true);
                }
            }
            //Top Right Line
            rotate([0,0,60]){
                translate([(10 * .55) + .75,0,0]){
                    square([3.5,1], center = true);
                }
            }
            //Bottom Middle Line
            rotate([0,0,-90]){
                translate([(10 * .55) + .75,0,0]){
                    square([3.5,1], center = true);
                }
            }
            //Bottom Left Line
            rotate([0,0,-120]){
                translate([(10 * .55) + 1.5,0,0]){
                    square([2,1], center = true);
                }
            }
            //Bottom Right Line
            rotate([0,0,-60]){
                translate([(10 * .55) + 1.5,0,0]){
                    square([2,1], center = true);
                }
            }
        }
    }
}
module IL_Logo(){
    scale([emblem_scale(emblem_radius),emblem_scale(emblem_radius),1]){
        linear_extrude(height = emblem_depth, center = true){
            //Inner Circle
            difference(){
                circle(r = (10 * .55));
                circle(r = (10 * .55) - 1);
            }
            //Top Triangle
            rotate([0,0,90]){
                translate([(10 * .54),0,0]){
                    scale([.65,1.10,1]){
                        difference(){
                            circle($fn = 3, r = (10 * .55));
                            translate([-2,0,0]){
                                circle($fn = 3, r = (10 * .55));
                            }
                        }
                    }
                }
            }
            //Bottom Triangle
            rotate([0,0,-90]){
                translate([(10 * .54),0,0]){
                    scale([.65,1.10,1]){
                        difference(){
                            circle($fn = 3, r = (10 * .55));
                            translate([-2,0,0]){
                                circle($fn = 3, r = (10 * .55));
                            }
                        }
                    }
                }
            }
        }
    }
}
module VL_Logo(){
    scale([emblem_scale(emblem_radius),emblem_scale(emblem_radius),1]){
        linear_extrude(height = emblem_depth, center = true){
            difference(){
                union(){
                    //Large Right Point
                    translate([4,0,0]){
                        scale([1,.5,1]){
                            circle($fn = 3, r = 4.9);
                        }
                    }
                    //Large Bottom Point
                    rotate([0,0,-90]){
                        translate([4,0,0]){
                            scale([1,.5,1]){
                                circle($fn = 3, r = 4.9);
                            }
                        }
                    }
                    //Large Left Point
                    rotate([0,0,180]){
                        translate([4,0,0]){
                            scale([1,.5,1]){
                                circle($fn = 3, r = 4.9);
                            }
                        }
                    }
                    //Large Top Point
                    rotate([0,0,90]){
                        translate([4,0,0]){
                            scale([1,.5,1]){
                                circle($fn = 3, r = 4.9);
                            }
                        }
                    }
                    rotate([0,0,45]){
                        //Small Top-Right Point
                        translate([2.5,0,0]){
                            scale([1,.5,1]){
                                circle($fn = 3, r = 5);
                            }
                        }
                        //Small Bottom-Right Point
                        rotate([0,0,-90]){
                            translate([2.5,0,0]){
                                scale([1,.5,1]){
                                    circle($fn = 3, r = 5);
                                }
                            }
                        }
                        //Small Bottom-Left Point
                        rotate([0,0,180]){
                            translate([2.5,0,0]){
                                scale([1,.5,1]){
                                    circle($fn = 3, r = 5);
                                }
                            }
                        }
                        //Small Top-Left Point
                        rotate([0,0,90]){
                            translate([2.5,0,0]){
                                scale([1,.5,1]){
                                    circle($fn = 3, r = 5);
                                }
                            }
                        }
                    }
                }
                //Inner Circle
                scale([.45,.75,1]){
                    circle(r = (10 * .55) - 1);
                }
            }
        }
    }
}
module KL_Logo(){
    scale([emblem_scale(emblem_radius),emblem_scale(emblem_radius),1]){
        linear_extrude(height = emblem_depth, center = true){
            //Triangle
            rotate([0,0,-90]){
                translate([2.5,0,0]){
                    scale([.65,1,1]){
                        difference(){
                            circle($fn = 3, r = 10);
                            translate([.3,0,0]){
                                circle($fn = 3, r = 7);
                            }
                        }
                    }
                }
            }
            intersection(){
                //Lines Over Triangle
                union(){
                    translate([0,5.5,0]){
                        square([2,8], center = true);
                    }
                    translate([3,5.5,0]){
                        square([2,8], center = true);
                    }
                    translate([6,5.5,0]){
                        square([2,8], center = true);
                    }
                    translate([-3,5.5,0]){
                        square([2,8], center = true);
                    }
                    translate([-6,5.5,0]){
                        square([2,8], center = true);
                    }
                }
                circle(r = 8.75);
            }
        }
    }
}
module WL_Logo(){
    scale([emblem_scale(emblem_radius),emblem_scale(emblem_radius),1]){
        linear_extrude(height = emblem_depth, center = true){
            //Triangle
            rotate([0,0,-90]){
                translate([4.4,0,0]){
                    scale([.65,.65,1]){
                        difference(){
                            circle($fn = 3, r = 10);
                            circle($fn = 3, r = 7);
                        }
                    }
                }
            }
            //Circle Over Triangle
            translate([0,-6,0]){
                difference(){
                    circle(r = 10);
                    circle(r = 9.5);
                }
            }
            //Points Aiming At Triangle
            translate([0,9.85,0]){
                rotate([0,0,-90]){
                    scale([1,.15,1]){
                        circle($fn = 3, r = 10);
                    }
                }
            }
            rotate([0,0,15]){
                translate([-1.5,10.2,0]){
                    rotate([0,0,-90]){
                        scale([1,.15,1]){
                            circle($fn = 3, r = 10);
                        }
                    }
                }
            }
            rotate([0,0,30]){
                translate([-3,11.5,0]){
                    rotate([0,0,-90]){
                        scale([1,.15,1]){
                            circle($fn = 3, r = 10);
                        }
                    }
                }
            }
            rotate([0,0,45]){
                translate([-4.5,13.5,0]){
                    rotate([0,0,-90]){
                        scale([1,.15,1]){
                            circle($fn = 3, r = 10);
                        }
                    }
                }
            }
            rotate([0,0,-15]){
                translate([1.5,10.2,0]){
                    rotate([0,0,-90]){
                        scale([1,.15,1]){
                            circle($fn = 3, r = 10);
                        }
                    }
                }
            }
            rotate([0,0,-30]){
                translate([3,11.5,0]){
                    rotate([0,0,-90]){
                        scale([1,.15,1]){
                            circle($fn = 3, r = 10);
                        }
                    }
                }
            }
            rotate([0,0,-45]){
                translate([4.5,13.5,0]){
                    rotate([0,0,-90]){
                        scale([1,.15,1]){
                            circle($fn = 3, r = 10);
                        }
                    }
                }
            }
        }
    }
}
module BlankRing(){
    difference(){
        difference(){
            hull(){
                scale([1,1,ring_length_modifier]){
                    sphere(r = ring_radius(ring_size) + ring_thickness);
                }
                translate([0,-ring_radius(ring_size) - ring_thickness - emblem_depth,0]){
                    difference(){
                        sphere(r = emblem_radius, center = true);
                        translate([0,-emblem_radius/2 + e,0]){
                            cube([emblem_radius * 2,emblem_radius,emblem_radius * 2], center = true);
                        }
                    }
                }
            }
            InnerDiameter(emblem_radius * 10);
        }
        translate([0,-ring_radius(ring_size) - ring_thickness - emblem_depth/2,0]){
            rotate([90,0,0]){
                cylinder(r = emblem_radius - logo_border, h = emblem_depth, center = true);
            }
        }
        translate([-ring_radius(ring_size) + ring_thickness/2,0,0]){
            rotate([90,0,90]){
                linear_extrude(height = ring_thickness, center = true){
                    if(ring_size == 3){
                        text("3", size = ring_length_modifier * 10, font = "Century Gothic:style=Bold", halign = "center", valign = "center");
                    }
                    if(ring_size == 4){
                        text("4", size = ring_length_modifier * 10, font = "Century Gothic:style=Bold", halign = "center", valign = "center");
                    }
                    if(ring_size == 5){
                        text("5", size = ring_length_modifier * 10, font = "Century Gothic:style=Bold", halign = "center", valign = "center");
                    }
                    if(ring_size == 6){
                        text("6", size = ring_length_modifier * 10, font = "Century Gothic:style=Bold", halign = "center", valign = "center");
                    }
                    if(ring_size == 7){
                        text("7", size = ring_length_modifier * 10, font = "Century Gothic:style=Bold", halign = "center", valign = "center");
                    }
                    if(ring_size == 8){
                        text("8", size = ring_length_modifier * 10, font = "Century Gothic:style=Bold", halign = "center", valign = "center");
                    }
                    if(ring_size == 9){
                        text("9", size = ring_length_modifier * 10, font = "Century Gothic:style=Bold", halign = "center", valign = "center");
                    }
                    if(ring_size == 10){
                        text("10", size = ring_length_modifier * 10, font = "Century Gothic:style=Bold", halign = "center", valign = "center");
                    }
                    if(ring_size == 11){
                        text("11", size = ring_length_modifier * 10, font = "Century Gothic:style=Bold", halign = "center", valign = "center");
                    }
                    if(ring_size == 12){
                        text("12", size = ring_length_modifier * 10, font = "Century Gothic:style=Bold", halign = "center", valign = "center");
                    }
                    if(ring_size == 13){
                        text("13", size = ring_length_modifier * 10, font = "Century Gothic:style=Bold", halign = "center", valign = "center");
                    }
                    if(ring_size == 14){
                        text("14", size = ring_length_modifier * 10, font = "Century Gothic:style=Bold", halign = "center", valign = "center");
                    }
                    if(ring_size == 15){
                        text("15", size = ring_length_modifier * 10, font = "Century Gothic:style=Bold", halign = "center", valign = "center");
                    }
                    if(ring_size == 16){
                        text("16", size = ring_length_modifier * 10, font = "Century Gothic:style=Bold", halign = "center", valign = "center");
                    }
                }
            }
        }
    }
}
module InnerDiameter(
    id_height = 1
){
    linear_extrude(height = id_height, center = true){
        circle(r = ring_radius(ring_size));
    }
}
```


[User]
Okay, I'd like to have a printable piano hinge designed, similar to what I've seen before, but with more explicit control over parameters, and also the ability to easily add screw holes later. I want it to be designed in OpenSCAD.

Here are the core requirements:

1.  **Print-in-place:** The hinge should be designed to be printed as a single piece, with the hinge rod captured inside. No assembly should be required after printing (other than maybe removing support material.)
2.  **Parametric Design:**  I need to be able to easily change dimensions like the rod diameter, clearances, overall height, number of segments, hinge width, and the thickness of the tube and flanges.
3.  **Rectangular Flanges:** The hinge should have rectangular flanges on either side that extend outwards from the hinge barrel, for attaching the hinge to other objects.
4.  **Screw Holes:** I would like to be able to easily add screw holes to these rectangular flanges. Ideally this would be a separate module. The location and size of those should be parametric and controlled by the user.

Specific parameters I'd like to control would include:

*   `rodDiameter`: (mm) Diameter of the rod inside the hinge.
*   `horizontalGap`: (mm) Clearance between the rod and the inside of the hinge tube.
*   `verticalGap`: (mm) Gap between the segments of the hinge tube.
*   `hingeHeight`: (mm) Total height of the hinge.
*   `numberOfSegments`: Number of individual tube segments making up the hinge barrel.
*   `tubeThickness`: (mm) Thickness of the tube walls in the hinge segments.
*   `hingeWidth`: (mm) Width of the rectangular flanges extending from the hinge barrel.
*   `flangeWidth`: (mm) How far out the rectangular flanges extend from the tube.
*   `hingeThickness`: (mm) Thickness of the rectangular flanges.
*   `numberOfFacetsInCylinders`: Resolution parameter for cylinders, so I can use low numbers to speed up preview in OpenSCAD.

For the screw holes, I need these parameters, but they don't need to be included in the main module:
*  `screwHoleDiameter`: (mm) diameter of the screw hole.
*   `screwHoleDistance`: (mm) distance from center of screw hole to the edge of the flange closest to the center of the hinge barrel.
*   `numberOfScrewHoles`: Number of screw holes in the flange.

I’d like the design to use the `rotate_extrude` module for the rounded corners. I know there’s a specific library with that; I just don’t remember the name, maybe it is MCAD?

I'm looking for a well-structured, reusable solution using modules and ideally a separate module for the screw holes so I can use them independently. I will also need a module that generates the hinge, and a top-level module that combines the two. Let me know if you need anything else.

[Assistant]
PianoHinge.scad:
```
// (mm) Making this bigger will increase the hinge stength.
rodDiameter    = 1.7;
//  (mm) This needs to be big enough that the rod won't fuse with the hinge tube.
HorizontalGap  = 0.8;
// (mm) Gap between segments, should be 2 or 3 times the layer height
VerticalGap    = 0.6;
// (mm) Total height of the hinge
hingeHeight    = 60;
// Number of segments, should be at least 3
numberOfSegments    = 4;
// (mm)
tubeThickness  = 0.5;
// (mm)
hingeWidth     = 10;
// (mm) Gap between tube and rectangular flap
flangeWidth    = 4;
// (mm)
hingeThickness = 1.5;

numberOfFacetsInCylinders = 20;

$fn = numberOfFacetsInCylinders;

segmentHeight = hingeHeight/numberOfSegments;
holeRad = rodDiameter/2+HorizontalGap;
tubeRad = holeRad+tubeThickness;

// Hinge body
translate([tubeRad+holeRad,0,0])
cube([hingeWidth,hingeThickness,hingeHeight]);
translate([0,tubeRad+holeRad,0])
cube([hingeThickness,hingeWidth,hingeHeight]);

difference()
{
    // Tube sections and the parts connecting them to the main hinge body
    union()
    {
        for(i = [0:numberOfSegments-1])
        {
            translate([0,0,segmentHeight*i])
            cylinder(r=tubeRad,h=segmentHeight-VerticalGap);
            if(i%2==1)
            {
                translate([holeRad,0,segmentHeight*i])
                cube([flangeWidth,hingeThickness,segmentHeight-VerticalGap]);
            }
            else
            {
                translate([0,holeRad,segmentHeight*i])
                cube([hingeThickness,flangeWidth,segmentHeight-VerticalGap]);
            }
        }
    }
    translate([0,0,2*VerticalGap])
    cylinder(r=holeRad,h=hingeHeight-4*VerticalGap);
}

// Rod
cylinder(r=rodDiameter/2,h=hingeHeight-2*VerticalGap);

// Close off top
translate([0,0,hingeHeight-VerticalGap])
cylinder(r=tubeRad,h=VerticalGap);

```


[User]
I'm looking to create a customizable 3D model of twisted text, kind of like a spiral sculpture with a base. I've got a basic OpenSCAD script here, but I'd really like something that's more robust and easier to work with, perhaps using some of the libraries out there.

Specifically, I need:

1.  **Text Customization:** The obvious one, I want to be able to change the text, the font, font weight, if it's italic, and the font size, like in my example. I'd also like to adjust the thickness of the text itself, which in my script is called 'text_fatness'.

2.  **Twist Control:**  The twist needs to be adjustable in degrees. I'd like to control the *total* twist, not the twist per layer.

3.  **Height Control:** The overall height of the twisted text should be adjustable.

4.  **Base Control:** I want a separate, tapered base under the twisted text. I need to control the height of this base, as well as its radius or size as it extends from the text's edge. It should smoothly transition from zero width at the bottom of the text to the given radius.

5.  **Resolution/Slices:**  I'd like a parameter to control the number of "slices" used in the extrusion for both the text and the base, affecting how smooth the curves are.

6.  **Libraries:** I'd prefer that the design utilizes some well established libraries, like BOSL or BOSL2. I'm not too fussed either way, but something that can handle these kinds of operations easily would be great!

The attached script has all the parameters defined that I need. Basically, I want to start with that and build it out with the libraries.

I'm not sure where to start in terms of breaking this down with BOSL. Could you provide me with a new OpenSCAD file or files that accomplish this, using the design from my script, and incorporate the BOSL/BOSL2 libraries?

[Assistant]
coolstrude.scad:
```

/* [General] */

// Text to display
content = "Cool";

// Overall height (Z-axis) of the thing (mm)
height = 80; // [10:200]

// Rotation the text takes through its extrusion (degrees)
twist = 360; // [0:720]

// height of the tapered base (Z-axis) (mm)
base_height = 10; // [2:25]

// Radius out from the text of the base (mm)
base_size = 10; // [2:50]

// Increase for greater details (at greater processing time)
slices = 50; // [10:100]

/* [Font] */

// Please refer: http://www.google.com/fonts
font_name="Open Sans"; //[ABeeZee,Abel,Abril Fatface,Aclonica,Acme,Actor,Adamina,Advent Pro,Aguafina Script,Akronim,Aladin,Aldrich,Alef,Alegreya,Alegreya Sans,Alegreya Sans SC,Alegreya SC,Alex Brush,Alfa Slab One,Alice,Alike,Alike Angular,Allan,Allerta,Allerta Stencil,Allura,Almendra,Almendra Display,Almendra SC,Amarante,Amaranth,Amatic SC,Amethysta,Amiri,Anaheim,Andada,Andada SC,Andika,Angkor,Annie Use Your Telescope,Anonymous Pro,Antic,Antic Didone,Antic Slab,Anton,Antonio,Arapey,Arbutus,Arbutus Slab,Architects Daughter,Archivo Black,Archivo Narrow,Arimo,Arizonia,Armata,Artifika,Arvo,Asap,Asset,Astloch,Asul,Atomic Age,Aubrey,Audiowide,Autour One,Average,Average Sans,Averia Gruesa Libre,Averia Libre,Averia Sans Libre,Averia Serif Libre,Bad Script,Balthazar,Bangers,Basic,Battambang,Baumans,Bayon,Belgrano,Belleza,BenchNine,Bentham,Berkshire Swash,Bevan,Bhavuka,Bigelow Rules,Bigshot One,Bilbo,Bilbo Swash Caps,Bitter,Black Ops One,Bokor,Bonbon,Boogaloo,Bowlby One,Bowlby One SC,Brawler,Bree Serif,Bruno Ace,Bruno Ace SC,Bubblegum Sans,Bubbler One,Buda,Buenard,Butcherman,Butcherman Caps,Butterfly Kids,Cabin,Cabin Condensed,Cabin Sketch,Caesar Dressing,Cagliostro,Calligraffitti,Cambay,Cambo,Candal,Cantarell,Cantata One,Cantora One,Capriola,Cardo,Carme,Carrois Gothic,Carrois Gothic SC,Carter One,Caudex,Cedarville Cursive,Ceviche One,Changa,Changa One,Chango,Chau Philomene One,Chela One,Chelsea Market,Chenla,Cherry Cream Soda,Cherry Swash,Chewy,Chicle,Chivo,Cinzel,Cinzel Decorative,Clara,Clicker Script,Coda,Coda Caption,Codystar,Combo,Comfortaa,Coming Soon,Concert One,Condiment,Content,Contrail One,Convergence,Cookie,Copse,Corben,Courgette,Cousine,Coustard,Covered By Your Grace,Crafty Girls,Creepster,Creepster Caps,Crete Round,Crimson Text,Croissant One,Crushed,Cuprum,Cutive,Cutive Mono,Damion,Dancing Script,Dangrek,Dawning of a New Day,Days One,Dekko,Delius,Delius Swash Caps,Delius Unicase,Della Respira,Denk One,Devonshire,Dhurjati,Dhyana,Didact Gothic,Dinah,Diplomata,Diplomata SC,Domine,Donegal One,Doppio One,Dorsa,Dosis,Droid Arabic Kufi,Droid Arabic Naskh,Droid Sans,Droid Sans Ethiopic,Droid Sans Mono,Droid Sans Thai,Droid Serif,Droid Serif Thai,Dr Sugiyama,Duru Sans,Dynalight,Eagle Lake,Eater,Eater Caps,EB Garamond,Economica,Eczar,Ek Mukta,Electrolize,Elsie,Elsie Swash Caps,Emblema One,Emilys Candy,Encode Sans,Encode Sans Compressed,Encode Sans Condensed,Encode Sans Narrow,Encode Sans Wide,Engagement,Englebert,Enriqueta,Erica One,Esteban,Euphoria Script,Ewert,Exo,Exo 2,Expletus Sans,Fanwood Text,Fascinate,Fascinate Inline,Faster One,Fasthand,Fauna One,Federant,Federo,Felipa,Fenix,Finger Paint,Fira Mono,Fira Sans,Fjalla One,Fjord One,Flamenco,Flavors,Fondamento,Fontdiner Swanky,Forum,Francois One,Freckle Face,Fredericka the Great,Fredoka One,Freehand,Fresca,Frijole,Fruktur,Fugaz One,Gabriela,Gafata,Galdeano,Galindo,Gentium Basic,Gentium Book Basic,Geo,Geostar,Geostar Fill,Germania One,GFS Didot,GFS Neohellenic,Gidugu,Gilda Display,Give You Glory,Glass Antiqua,Glegoo,Gloria Hallelujah,Goblin One,Gochi Hand,Gorditas,Goudy Bookletter 1911,Graduate,Grand Hotel,Gravitas One,Great Vibes,Griffy,Gruppo,Gudea,Gurajada,Habibi,Halant,Hammersmith One,Hanalei,Hanalei Fill,Handlee,Hanuman,Happy Monkey,Headland One,Helvetica,Henny Penny,Hermeneus One,Herr Von Muellerhoff,Hind,Holtwood One SC,Homemade Apple,Homenaje,Iceberg,Iceland,IM Fell Double Pica,IM Fell Double Pica SC,IM Fell DW Pica,IM Fell DW Pica SC,IM Fell English,IM Fell English SC,IM Fell French Canon,IM Fell French Canon SC,IM Fell Great Primer,IM Fell Great Primer SC,Imprima,Inconsolata,Inder,Indie Flower,Inika,Inknut Antiqua,Irish Grover,Irish Growler,Istok Web,Italiana,Italianno,Jacques Francois,Jacques Francois Shadow,Jaldi,Jim Nightshade,Jockey One,Jolly Lodger,Josefin Sans,Josefin Sans Std Light,Josefin Slab,Joti One,Judson,Julee,Julius Sans One,Junge,Jura,Just Another Hand,Just Me Again Down Here,Kadwa,Kalam,Kameron,Kantumruy,Karla,Karla Tamil Inclined,Karla Tamil Upright,Karma,Kaushan Script,Kavoon,Kdam Thmor,Keania One,Kelly Slab,Kenia,Khand,Khmer,Khula,Kite One,Knewave,Kotta One,Koulen,Kranky,Kreon,Kristi,Krona One,La Belle Aurore,Laila,Lakki Reddy,Lancelot,Lateef,Lato,League Script,Leckerli One,Ledger,Lekton,Lemon,Lemon One,Liberation Sans ,Libre Baskerville,Libre Caslon Text,Life Savers,Lilita One,Lily Script One,Limelight,Linden Hill,Lobster,Lobster Two,Lohit Bengali,Lohit Tamil,Londrina Outline,Londrina Shadow,Londrina Sketch,Londrina Solid,Lora,Loved by the King,Lovers Quarrel,Love Ya Like A Sister,Luckiest Guy,Lusitana,Lustria,Macondo,Macondo Swash Caps,Magra,Maiden Orange,Mako,Mallanna,Mandali,Marcellus,Marcellus SC,Marck Script,Margarine,Marko One,Marmelad,Martel Sans,Marvel,Mate,Mate SC,Maven Pro,McLaren,Meddon,MedievalSharp,Medula One,Megrim,Meie Script,Merge One,Merienda,Merienda One,Merriweather,Merriweather Sans,Mervale Script,Metal,Metal Mania,Metamorphous,Metrophobic,Miama,Michroma,Milonga,Miltonian,Miltonian Tattoo,Miniver,Miss Fajardose,Miss Saint Delafield,Modak,Modern Antiqua,Molengo,Molle,Monda,Monofett,Monoton,Monsieur La Doulaise,Montaga,Montez,Montserrat,Montserrat Alternates,Montserrat Subrayada,Moul,Moulpali,Mountains of Christmas,Mouse Memoirs,Mr Bedford,Mr Bedfort,Mr Dafoe,Mr De Haviland,Mrs Sheppards,Mrs Saint Delafield,Muli,Mystery Quest,Nanum Brush Script,Nanum Gothic,Nanum Gothic Coding,Nanum Myeongjo,Nanum Pen Script,NATS,Neucha,Neuton,New Rocker,News Cycle,Niconne,Nixie One,Nobile,Nokora,Norican,Nosifer,Nosifer Caps,Nothing You Could Do,Noticia Text,Noto Sans,Noto Sans Hebrew,Noto Sans Symbols,Noto Sans UI,Noto Serif,Nova Cut,Nova Flat,Nova Mono,Nova Oval,Nova Round,Nova Script,Nova Slim,Nova Square,NTR,Numans,Nunito,Odor Mean Chey,Offside,OFL Sorts Mill Goudy TT,Oldenburg,Old Standard TT,Oleo Script,Oleo Script Swash Caps,Open Sans,Open Sans Condensed,Oranienbaum,Orbitron,Oregano,Orienta,Original Surfer,Oswald,Overlock,Overlock SC,Over the Rainbow,Ovo,Oxygen,Oxygen Mono,Pacifico,Palanquin,Palanquin Dark,Paprika,Parisienne,Passero One,Passion One,Pathway Gothic One,Patrick Hand,Patrick Hand SC,Patua One,Paytone One,Pecita,Peddana,Peralta,Permanent Marker,Petit Formal Script,Petrona,Phetsarath,Philosopher,Piedra,Pinyon Script,Pirata One,Plaster,Play,Playball,Playfair Display,Playfair Display SC,Podkova,Poetsen One,Poiret One,Poller One,Poly,Pompiere,Ponnala,Pontano Sans,Poppins,Porter Sans Block,Port Lligat Sans,Port Lligat Slab,Prata,Preahvihear,Press Start 2P,Princess Sofia,Prociono,Prosto One,PT Mono,PT Sans,PT Sans Caption,PT Sans Narrow,PT Serif,PT Serif Caption,Puralecka Narrow,Puritan,Purple Purse,Quando,Quantico,Quattrocento,Quattrocento Sans,Questrial,Quicksand,Quintessential,Qwigley,Racing Sans One,Radley,Rajdhani,Raleway,Raleway Dots,Ramabhadra,Ramaraja,Rambla,Rammetto One,Ranchers,Rancho,Ranga,Rationale,Ravi Prakash,Redacted,Redacted Script,Redressed,Reenie Beanie,Revalia,Ribeye,Ribeye Marrow,Righteous,Risque,Roboto,Roboto Condensed,Roboto Slab,Rochester,Rock Salt,Rokkitt,Romanesco,Ropa Sans,Rosario,Rosarivo,Rouge Script,Rozha One,Rubik Mono One,Rubik One,Ruda,Rufina,Ruge Boogie,Ruluko,Rum Raisin,Ruslan Display,Russo One,Ruthie,Rye,Sacramento,Sail,Salsa,Sanchez,Sancreek,Sansation,Sansita One,Sarabun,Sarala,Sarina,Sarpanch,Satisfy,Scada,Scheherazade,Schoolbell,Seaweed Script,Sedan,Sedan SC,Sevillana,Seymour One,Shadows Into Light,Shadows Into Light Two,Shanti,Share,Share Tech,Share Tech Mono,Shojumaru,Short Stack,Siamreap,Siemreap,Sigmar One,Signika,Signika Negative,Simonetta,Sintony,Sirin Stencil,Six Caps,Skranji,Slabo 13px,Slabo 27px,Slackey,Smokum,Smythe,Sniglet,Snippet,Snowburst One,Sofadi One,Sofia,Sonsie One,Sorts Mill Goudy,Source Code Pro,Source Sans Pro,Source Serif Pro,Special Elite,Spicy Rice,Spinnaker,Spirax,Squada One,Sree Krushnadevaraya,Stalemate,Stalinist One,Stalin One,Stardos Stencil,Stint Ultra Condensed,Stint Ultra Expanded,Stoke,Strait,Strong,Sue Ellen Francisco,Sunshiney,Supermercado One,Suranna,Suravaram,Suwannaphum,Swanky and Moo Moo,Syncopate,Tangerine,Taprom,Tauri,Teko,Telex,Tenali Ramakrishna,Tenor Sans,Terminal Dosis,Terminal Dosis Light,Text Me One,Thabit,The Girl Next Door,Tienne,Tillana,Timmana,Tinos,Titan One,Titillium Web,Trade Winds,Trocchi,Trochut,Trykker,Tuffy,Tulpen One,Ubuntu,Ubuntu Condensed,Ubuntu Mono,Ultra,Uncial Antiqua,Underdog,Unica One,UnifrakturCook,UnifrakturMaguntia,Unkempt,Unlock,Unna,Vampiro One,Varela,Varela Round,Vast Shadow,Vesper Libre,Vibur,Vidaloka,Viga,Voces,Volkhov,Vollkorn,Voltaire,VT323,Waiting for the Sunrise,Wallpoet,Walter Turncoat,Warnes,Wellfleet,Wendy One,Wire One,Yanone Kaffeesatz,Yellowtail,Yeseva One,Yesteryear,Zeyada]

// Not all fonts support all weight styles, though most support 'normal' and 'bold' at least.
font_weight = "medium"; // [thin,light,normal,medium,bold,ultra-bold]

// Italic?
is_font_italic = "no"; // [no,yes]
font_italic = is_font_italic=="yes" ? true : false;

font = str(font_name,":style=",font_weight,font_italic?" italic":"");

font_size = 10; // [5:50]

// You can increase or decrease the thickness of the font with this.
text_fatness_percent = 0; // [-10:10]
text_fatness = text_fatness_percent/100 * font_size;

module the_text() {
    color(color_text)
        offset(r=text_fatness)
        text(content,font=font,halign="center",valign="center", size=font_size);
}

linear_extrude(height, twist=twist, slices=slices)
    the_text();

linear_extrude(base_height,scale=0) offset(base_size) the_text();
```


[User]
Hey, I'm looking to create a parametric pumpkin design in OpenSCAD. I want it to be made of several "humps" arranged around a central axis, and have a stalk on top.

For the main body, I'd like to control the number of humps, the radius of each hump (they should be spheres), and I'd like to be able to define an overall height for the stalk, and the radius of the stalk. I was hoping to also be able to have some control over the "roundness" of each hump, by making the hump not a sphere, but an ellipsoid. It would be great to have a parameter for the x/y radius and another parameter for the z radius of each hump. I'm trying to get that perfect pumpkin shape!

I'd also like to be able to control the color of the pumpkin and stalk separately. I'm thinking orange for the pumpkin and green for the stalk, but would like those to be parameters too.

Basically, I'm thinking the parameters would be:
* `hump_count`: The number of humps around the pumpkin.
* `hump_radius_xy`: The radius of the hump in the x and y directions.
* `hump_radius_z`: The radius of the hump in the z direction.
* `stalk_height`: The height of the stalk.
* `stalk_radius`: The radius of the stalk.
* `pumpkin_color`: The color of the pumpkin body, likely a color string like "orange".
* `stalk_color`: The color of the stalk, likely a color string like "green".

Could you generate the necessary OpenSCAD code for this? I'm not looking to use any external libraries. Thanks!

[Assistant]
Pumpkin.scad:
```
//Pumkin

//How Many "Humps"
Humps = 12;

//Stalk Height
Height = 20;

//Radius Of Each Sphere
Radius = 12;
color("orange")
for(n = [0:1:Humps]){
    rotate([0, 0, n * 360/Humps]){
        translate([Radius,0,0])
        sphere(Radius);
    }
}
color("Green")
cylinder(Height,Radius/4,Radius/4);
```


[User]
Hi! I'm looking to create a parametric filament swatch for 3D printing, similar to the one I saw on Thingiverse, but I want to be able to fully customize it. I need it to show different thicknesses of the same filament side-by-side so I can see how the color looks at different layers.

The design should have a base that includes multiple steps, each with a different thickness, along with a small "tag" area where I can write the filament type and color. There should also be a hole for easy mounting with other swatches, maybe on a ring or something.

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

*   **Thickness Range:** I'd like to define the minimum thickness, the maximum thickness, and the increment for each step. For example, I want to easily specify a range from 0.5mm to 3mm in 0.5mm increments or whatever I need.
*   **Swatch Size:** I need to control the width of the sample and the length of each thickness sample.  The length of the tag should also be customizable.
*   **Corner Radius:** The design should have rounded corners to make it look better and avoid sharp points. I want to be able to set the radius of these corners.
*   **Rim Thickness:** I would like a small rim around the outside of the steps, mostly for aesthetics. I need to be able to set the thickness of this rim.
*   **Mounting Hole:**  I'd like to specify the diameter of the mounting hole and its position, which should be relative to the overall swatch size.
*   **Tag Groove:** There should be a small groove separating the tag area from the main sample area. I'd like to define the depth of this groove.

I am familiar with OpenSCAD and know it has some libraries that might be helpful, so I would expect the code to utilize the MCAD library, specifically the 2Dshapes component to create rounded rectangles.

Can you generate the OpenSCAD files to achieve this?  I want to be able to quickly create lots of these for all the different filaments I have.

[Assistant]
Parametric_Filament_swatch.scad:
```
/*
	Item:	Parametric Filament Swatch

	Description:  A printable sample of filament color for a given filament type.

    Author:         Ezra Reynolds
                    Ezra_Reynolds@signalcenters.org

    Notes:	Shape/Concept based on 	http://www.thingiverse.com/thing:664377
			This design is parametric, original is static.

	Printing:
		Printer: 	Makergear M2
		Options: 	20% Infill
		Time:	 	13 minutes
		Filament:	6.44g
		Cost:		$0.30

    Version History:
		2015-05-18 - v1.0 - First Functional Version

*/

// ======================= INCLUDE FILES ==========================
include <MCAD/2Dshapes.scad>;

// ======================= PARAMETERS =============================
mm			= 25.4;		// Inch to mm conversion
$fn 		= 50;		// Circle smoothness

// Define the range of thicknesses [minThick:stepSize:maxThick]
//  (e.g. for min=0.5, step=0.5, max=3], we would have 0.5, 1, 1.5, 2, 2.5, 3
minThick = 0.5;		// Minimum sample thickness
stepSize = 0.5;		// Delta of each thickness
maxThick = 3;		// Maximum sample thickness

// Swatch Geometry
width			= 1 * mm;	// Width of the sample, e.g 1 inch
corner			= 5;		// Corner Radius
rimThickness 	= 1.5;		// Lip thickbess
tagLength 		= 1.5 * mm;	// Length of a "tag" on the top, for writing vendor/color
sampleLength 	= 0.5 * mm;	// Length of each sample thickness

// Mounting hole, separation groove
hole_d			= 7;	// Hole for mounting
holePosition 	= [hole_d/2+rimThickness+ 1, width/2, 0];	// [X,Y,Z] position of hole
grooveDepth 	= 1;	// Depth of the groove separating tag+sample

// Derived Parameters
steps 	= (maxThick-minThick) / stepSize;	// How many steps
echo ("Steps=", steps);
totalLength = tagLength + (steps+1)*sampleLength;	// Total length of swatch

// ======================= CREATE 3D PART==========================

difference()
{
	union()
	{
		intersection()
		{
			union()
			{
				// Create steps of thickness
				for (i = [0:steps])
				{

					length = tagLength + (steps+1-i)*sampleLength;
					echo ("i=", i, "Thickness=", (i+1)*stepSize, "Length=", length);

					// Make the steps
					translate ([0, 0, i*stepSize])
						cube ([length, width, stepSize]);

				}
			} // End Union

			// Round the corners
			translate ([totalLength/2, width/2, -1])
				linear_extrude(100, convexity=20)
					roundedSquare ([totalLength, width], corner);

		}	// End intersection

		// Add Rim
		translate ([totalLength/2, width/2, 0])
			linear_extrude((steps+1)*stepSize, convexity=20)
				difference()
				{
					roundedSquare ([totalLength+rimThickness*2, width+rimThickness*2], corner);
					roundedSquare ([totalLength, width], corner);
				}

	} // End Union

	// Make Hole
	translate (holePosition)
		cylinder (d=hole_d, h=4*(steps+2)*stepSize, center=true);

	// Make groove for tag separation
	translate ([tagLength, width/2, (steps+1)*stepSize])
		rotate ([90, 0, 0])
			cylinder (r=grooveDepth, h=width*2, center=true);

} // End difference

// END OF FILE.  S.D.G.
```


[User]
I need a bit extender for my MegaPro ratcheting screwdriver. It uses double-ended 2-inch long bits, and I'd like to use standard single-ended 1-inch bits with it. I'm thinking a simple drop-in spacer is the way to go.

My existing version is just a 20mm long hexagonal cylinder, 6mm across the flats, and it's slightly undersized to avoid getting stuck. The OpenSCAD code I used was just:

```
height = 20;
distance_across_flats = 6;

linear_extrude(height) circle(distance_across_flats / 2 / cos(30), $fn = 6);
```

But, the current design has some issues. If you push it in too hard it can deform and be very difficult to remove. I also realized one of my older designs works well enough for this: http://www.thingiverse.com/thing:350118. I just need to customize that design to adapt 1/4" bits to 1/4" bits.

So, what I'd like is a parametric OpenSCAD design based on the earlier thingiverse design that allows me to create a bit extender that will work as a spacer. It should allow me to specify the length, and include parameters for how tight or loose the fit is. It would be good to be able to adjust the length of the insertion end and the bit end separately, and how much clearance there is on each side. Maybe also a parameter for a small chamfer on the outside edges? I'd like to be able to specify both the hexagonal diameter across the flats, and also the diameter of the inner hole that the bit would fit into. Maybe have a default 6mm across flats, and 6.35mm (1/4") internal diameter.

Basically, the whole thing should be based on the design in the link above, just more flexible so I can dial in the correct dimensions. Let me know if that makes sense! I'd like to be able to make several of these, and have the fit be perfect for different tolerances.

I don't have any need for external libraries, unless there is something that would make this substantially easier.

[Assistant]
bit-extender.scad:
```
height = 20;
// 6.35 is exactly 1/4". Make it undersized so it will slip out.
distance_across_flats = 6;

linear_extrude(20) circle(distance_across_flats / 2 / cos(30), $fn = 6);
```


[User]
I need an OpenSCAD design for mounting tabs for a 1.3" OLED display. These tabs are meant to sit between the display and a main PCB and are "riveted" using a hot soldering iron. I want the design to be parametric so I can easily adjust dimensions.

Here are the key features and dimensions I have in mind:

*   **Three-part structure:** The tab will have three distinct parts:
    *   An oval tab on the display side.
    *   A cylindrical support section.
    *   A round tab on the PCB side.
*   **Oval Tab (Display Side):**
    *   Width (w3): Default 1.9mm
    *   Length (l3): Default 4mm
    *   Height (h3): Default 2.8mm
*   **Support Section (Middle):**
    *   Width (w2): Default 3mm
    *   Length (l2): Default 6mm
    *   Height (h2): Default 2.1mm
*   **Round Tab (PCB Side):**
    *   Diameter (w1): Default 2.7mm (intended for 3mm drill hole).
    *   Length (l1): same as w1, to create a cylinder
    *   Height (h1): Default 3.5mm

*   **Mounting:** The round tab on the PCB side will be offset from the centerline of the oval tab by `(w1-w3)/2` mm towards the display's pin row. This offset helps with printing by making the center of the main cylinder aligned with the center of the PCB mounting hole.

*   **Material:** The material doesn't matter, but there should be a small epsilon added to h1 and h2 to ensure manifold output.

*   **Orientation:** The model should be oriented in such a way that the three parts of the tab are stacked along the z-axis. The round tab (intended for the PCB) is located at z=0, and the oval tab (intended for the OLED display) at the top, at z = `h1 + h2`.

*   **General:** I'd like to have variables for all of the dimensions so I can easily modify the design. The roundness should be controlled by `$fn` and set to a default of 32.

*   **Libraries:** No special libraries are needed, just standard OpenSCAD functions.

I'd like the design to use a hull to make a smooth oval tab at the display side. I expect to need two of these tabs for each display mount. Can you provide the OpenSCAD code for this?

[Assistant]
oled_base.scad:
```
// Mounting tab for 1.3" OLED displays. Use the side of a hot
// solder iron to 'rivet' the tabs on the display and main PCB
// side.

/* [Global] */

// Width of the oval tab at the display side.
w3=1.9;
// Width of the support btween the display and main PCB.
w2=3;
// Diameter of the round tab at the main PCB side. Default
// is for a 3mm home. Hole center is offest by (w1-w3)/2 mm
// toward the pin row of the display.
w1=2.7;

// Length of the oval tab at the display side.
l3=4;
// Length of space between the display and manin PCB.
l2=6;
// Length of the round tab at the main PCB side (round).
l1=w1;

// Height of the oval tab at the display side.
h3=2.8;
// Height of space between the display and manin PCB.
h2=2.1;
// Height of the round tab at the main PCB side.
h1=3.5;

/* [Hidden] */

// Roundness
$fn=32;

total_height = h1 + h2 + h3;

// For maintaining manifold.
eps = 0.001;

module oval(x, y, z, w, l, h) {
  translate([x, y, z]) hull() {
    translate([-(l-w)/2, 0, 0]) cylinder(h=h, d=w);
    translate([(l-w)/2, 0, 0]) cylinder(h=h, d=w);
  }
}

module main() {
  translate([0, 0, w1/2]) rotate([90, 0, 0]) union() {
    oval(0, 0, 0, w1, l1, h1+eps);
    oval(0, (w2-w1)/2, h1, w2, l2, h2+eps);
    oval(0, (w3-w1)/2, h1+h2, w3, l3, h3);
  }
}

main();

```


[User]
Hi, I need some help designing a stool glide in OpenSCAD. I've been using some that I found online, but I'd like to have something more customizable and better documented.

Essentially, I'm working with some bar stools made from 1/2" EMT pipe, which has an outer diameter of about 18mm and an inner diameter around 15.7mm. The glides I've been using have a few parts: a cylindrical "sheath" that fits inside the pipe, a small "pad" that extends beyond the end of the pipe and then angles outwards a little to provide a foot for the stool.

Specifically, the sheath portion needs to have an outer diameter slightly larger than the inner diameter of the pipe to be a snug fit, but the inner hole of the sheath will need to snugly fit the pipe. The original design uses a small amount of shrinkage to deal with 3D printing, which is also important. It also tapers the inner part a little to help guide it in.

The pad is cylindrical at the top, matching the outer diameter of the sheath, and then the bottom part extends out, using a simple angled cube. The angle was set to match the existing stool leg angle (8.3 degrees), but needs to be able to be configurable as needed.

Here are the parameters I think we'd need:

*   `legInnerDiameter`:  The inner diameter of the stool leg pipe (default 15.7mm).
*   `legOuterDiameter`: The outer diameter of the stool leg pipe (default 18mm).
*   `sheathHeight`: The height of the cylindrical sheath (default 10mm).
*  `sheathThickness`: The thickness of the sheath (default 1.2mm)
*   `padHeight`: The height of the cylindrical pad portion before angling (default 3mm).
*   `padAngle`: The angle of the pad relative to the vertical (default 8.3 degrees).
*  `innerTaper`: The amount the inner diameter shrinks as it gets closer to the pad (default 1mm).
*   `shrinkageFactor`: A small amount added to the diameters to account for 3D printing shrinkage (default 0.27mm).

The scad file should use the `difference()` command to create the hollow cylinder, and the second difference to remove the tapering inside. The bottom pad should be added using a rotated cube.

Can you help me create an OpenSCAD file that incorporates all of these parameters? Also, it would be great if the file used comments to explain the parameters and the calculations involved.

[Assistant]
StoolGlide.scad:
```
// Stool Glide
// author: fiveangle@gmail.com
// date: 2015may29
// ver: 1.0
// notes: default parameters create glide for stool made with 1/2 EMT pipe
// fixes/improvements:
//     -none
// adjust to increase/decrease polygon count at expense of processing time
$fn = 200; //

shrinkageFactor = 0.27;

legInnerDiameter = 15.7;

legOuterDiameter = 18;

sheathHeight = 10;

sheathThickness = 1.2;

padHeight = 3;

padAngle = 8.3;

innerTaper = 1;

difference() {

    translate([((legOuterDiameter + 2 * sheathThickness) + shrinkageFactor) / 2, ((legOuterDiameter + 2 * sheathThickness) + shrinkageFactor) / 2, 0]) {
        difference() {
            cylinder(d = legOuterDiameter + 2 * sheathThickness + shrinkageFactor, h = sheathHeight + padHeight + (sin(padAngle) * legOuterDiameter));
            difference() {
                cylinder(d1 = legOuterDiameter + shrinkageFactor, d2 = legOuterDiameter + shrinkageFactor, h = sheathHeight);
                cylinder(d1 = legInnerDiameter + shrinkageFactor - innerTaper, d2 = legInnerDiameter + shrinkageFactor, h = sheathHeight + padHeight);
            }
        }

    }
    translate([0, 0, sheathHeight + padHeight]) {
        rotate([padAngle, 0, 0]) {
            cube([2 * legOuterDiameter, 2 * legOuterDiameter, legOuterDiameter]);
        }
    }
}
```


[User]
Hey, I'm looking to generate a custom nameplate/badge sort of thing with OpenSCAD and could really use some help. I’ve kind of started messing around with it but I think I need a more robust parametric design.

I’d like a rectangular base with rounded corners. The base should have a height, width, and corner radius that can be adjusted via parameters.

I want a logo cutout on the top face. It should be an extrusion of a simple shape, maybe a couple of triangles or trapezoids, sort of overlapping or next to each other. It should also have a cylindrical hole going through the entire thickness of the base. These logo and hole features should also be parametrically controlled, including their position and size.

Finally, I need space for some text on the top surface. The text should be configurable: what string is written, where it's positioned, its size, and what font is used (ideally, I'd like to use a DXF font file).

It would also be great if the design included the 'write' library to handle the text rendering. Is it possible to write me the SCAD files for this, or do I need to do it myself and ask for help with specific parts?

[Assistant]
flatironRectangle.scad:
```

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

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

/* [global] */
//For name, max 7 characters.
name = "Name";

/* [hidden] */
font = "write/Letters.dxf";
h = 40;
w = 25;
r = 2.5;
$fn=150;

module logo(){ linear_extrude(height = 3) polygon( [ [0,0],[4.1,0],[10.1,20],[6,20] ] , [ [0,1,2,3] ]);
linear_extrude(height = 3) translate([7.2,0,0]) polygon( [ [0,0],[4.1,0],[10.1,20],[6,20] ] , [ [0,1,2,3] ]);
}

module base() {
translate([r,r,0]) circle(r);
translate([r,(h-r),0]) circle(r);
translate([(w-r),r,0]) circle(r);
translate([(w-r),(h-r),0]) circle(r);
translate([r,0,0]) polygon( [ [0,0],[w-2*r,0],[w-2*r,h],[0,h] ] , [ [0,1,2,3] ]);
translate([0,r,0]) polygon( [ [0,0],[w,0],[w,h-2*r],[0,h-2*r] ] , [ [0,1,2,3] ]);
}

module logo_hole(){

    translate([4.2,15,-.5]) logo();
    translate([4,36,-1]) cylinder(10,1.8,1.8);
}

//cutting out the logo and the hole
difference(){

    linear_extrude(height = 1.5) base();
    logo_hole();
}

translate([12.5,4,0]) linear_extrude(height = 2.25) {
   text(name, font = font, size = 4.5, halign = "center");
  }

```