[User]
Hey, I'd like to design a parametric black cat for 3D printing, something suitable for a Halloween decoration. I've seen a few designs out there, and I have a good idea of what I want. I'd like it to be constructed with the head, body, two front legs, and a nose as separate parts, but everything should fit together in the final assembly.

The overall height of the assembled cat should be a parameter, say `Project_Size`, ranging from 65 to 125 mm. I want to be able to adjust the rendering quality, let's call it `Render_Quality`, with options for "draft" quality (e.g., `$fn = 24`) and "production" quality (e.g., `$fn = 60`).

The head should be a slightly squashed sphere with a small mouth and two eyes. The eyes should be cylinders that protrude slightly and also have a small inner cylinder to form the pupil. The ears will be cylinders with a slightly pointed cone shape, they are not perfectly round like the head. The mouth should be created using a small cylinder and subtractions from spheres.

The body will be a combination of cylinders and spheres, with the front and rear legs represented by spheres and cylinders. The back will be a main cylinder with subtractions to form the cat's back and belly. The up-legs will connect to the torso by small cylinders, and the down-legs will be attached using cylinders that are attached at an angle. The tail should start with a sphere and continue with a small cylinder.

The front legs should be separate parts that fit into indentations in the body. They should have a roughly cylindrical shape with some rounded edges and small indentations to represent toes. The nose should just be a small sphere.

I'd like to have a main module called `all()` that generates the entire cat. I'd also like to have modules for each major part: `body()`, `uplegs()`,  and these should be scalable based on the `Project_Size` variable. I would also like to have a `part_to_render` variable, which allows the user to select rendering of one of the following using a number (1-3): 1: the body, 2: the uplegs, 3: all parts.

Could you create the OpenSCAD files with these specifications? I'm hoping the files are clear, well-commented, and easy to modify if I want to tweak things later. I do not require any additional libraries beyond the standard OpenSCAD library.

[Assistant]
RC-Black_Cat2.0.scad:
```
// The parameters below may be changed by the customizer
//
// BEGIN CUSTOMIZER

//select part(s) to render
part_to_render = 3; //[1:body, 2:uplegs, 3:all]

//Draft for preview, prduction for final
Render_Quality = 60; //[24:Draft,60:production]

//approx. height when assembled, mm
Project_Size = 100; // [65:125]

// END CUSTOMIZER

//
// The parameters below are not meant to be changed by the customizer

$fn = Render_Quality;

module body(){
difference(){
union(){
translate([0,8,90])
scale([1.2,1.2,1.2])
union(){
//head
difference(){
union(){
translate([0,0,0])
sphere(20);
scale([1.08,1,0.8])
translate([0,0,-4])
sphere(20);
}
translate([0,-20,-10])//mouth
scale([1.2,1.2,1.2])
difference(){
cylinder(5,4,0);
    translate([5,0,5])
    sphere(5);
    translate([-5,0,5])
    sphere(5);
}
}
rotate([5,0,0])
//eyes
union(){
scale([0.8,1,1])
translate([9,-13,8])
rotate([90,0,20])
difference(){
cylinder(5,5,5);
    translate([0,0,4.7])
    cylinder(0.4,3.5,3.5);
}
scale([0.8,1,1])
translate([-9,-13,8])
rotate([90,0,-20])
difference(){
cylinder(5,5,5);
    translate([0,0,4.7])
    cylinder(0.4,3.5,3.5);
}
}

//ears
rotate([20,-40,0])
translate([0,0,19])
difference(){
difference(){
cylinder(7,4,0);
    translate([-5,-10,-0.1])
    cube([10,10,7]);
}
translate([0,0,-0.5])
cylinder(4,3,0);
}
rotate([20,40,0])
translate([0,0,19])
difference(){
difference(){
cylinder(7,4,0);
    translate([-5,-10,-0.1])
    cube([10,10,7]);
}
translate([0,0,-0.5])
cylinder(4,3,0);
}
}
//body
difference(){
    translate([0,0,7])
union(){

//back

difference(){
cylinder(60,30,30);
    translate([-35,-70,-0.1])
    cube([70,70,71]);
}
difference(){
difference(){
scale([0.712,0.78,0.86])
translate([0,-5,45])
sphere(50);
translate([-50,-100,0])
cube([100,100,100]);
}
cylinder(60,50,50);
}
difference(){
    translate([0,0,40])
        sphere(50);
    translate([-50,-50,0])
    cube([100,100,90]);

}
//up-legs
translate([20,0,60])
sphere(10);
translate([-20,0,60])
sphere(10);

translate([0,0,-10])
//front
difference(){
scale([0.86,1.05,1.16])
difference(){
translate([0,30,40])
sphere(50);
    translate([-50,0,-10])
    cube([100,100,100]);
}
translate([30,-10,0])
cube([70,70,70]);
translate([-100,-10,0])
cube([70,70,70]);
}

//down-legs
translate([-19,0,5])
sphere(13);
translate([19,0,5])
sphere(13);
translate([-19,0,5])
rotate([90,0,14])
union(){
cylinder(26,13,13);
translate([0,0,26])
sphere(13);
}
translate([19,0,5])
rotate([90,0,-14])
union(){
cylinder(26,13,13);
translate([0,0,26])
sphere(13);
}
//tail
translate([0,24,-3])
sphere(5);
translate([0,33,-3])
rotate([90,0,0])
union(){
cylinder(8,5,5);
sphere(5);
}
}
translate([-100,-100,-200])
cube([200,200,200]);
}
}

translate([20,0,67])
rotate([90,0,0])
cylinder(100,3,3);
translate([-20,0,67])
rotate([90,0,0])
cylinder(100,3,3);

}
//nose
translate([0,-18,90])
sphere(3);
}
module uplegs(){
//up-leg
translate([-20,-15,70])
rotate([-90,90,0])
union(){
difference(){
union(){
translate([0,0,11.5])
rotate([0,40,0])
cylinder(5,3,3);
translate([0,0,11])
sphere(3.2);
cylinder(10,10,10);
sphere(10);
}
translate([-10,-10,-28])
cube([20,20,20]);
scale([0.8,1,1])
translate([2,0,-8.1])
cylinder(1,3,3);
scale([1,0.8,1])
translate([-2,4,-8.1])
cylinder(1,2,2);
scale([1,0.8,1])
translate([-2,-4,-8.1])
cylinder(1,2,2);
scale([1,0.8,1])
translate([-3.5,0,-8.1])
cylinder(1,2,2);
}
}
translate([20,-15,70])
rotate([-90,90,0])
union(){
difference(){
union(){
translate([0,0,11.5])
rotate([0,40,0])
cylinder(5,3,3);
translate([0,0,11])
sphere(3.2);
cylinder(10,10,10);
sphere(10);
}
translate([-10,-10,-28])
cube([20,20,20]);
scale([0.8,1,1])
translate([2,0,-8.1])
cylinder(1,3,3);
scale([1,0.8,1])
translate([-2,4,-8.1])
cylinder(1,2,2);
scale([1,0.8,1])
translate([-2,-4,-8.1])
cylinder(1,2,2);
scale([1,0.8,1])
translate([-3.5,0,-8.1])
cylinder(1,2,2);
}
}
}

module all() {
    union(){
		body();
        uplegs();
        }
	}

scale([Project_Size/scale_factor, Project_Size/scale_factor, Project_Size/scale_factor]) {

	if (part_to_render == 1) {
		body();
	}
	if (part_to_render == 2) {
		uplegs();
	}
    if (part_to_render == 3) {
        all();
}
}
//end scale
```
R.C_cat_for_halloween_finished.scad:
```
$fn=40;

difference(){
union(){
translate([0,8,90])
scale([1.2,1.2,1.2])
union(){
//head
difference(){
union(){
translate([0,0,0])
sphere(20);
scale([1.08,1,0.8])
translate([0,0,-4])
sphere(20);
}
translate([0,-20,-10])//mouth
scale([1.2,1.2,1.2])
difference(){
cylinder(5,4,0);
    translate([5,0,5])
    sphere(5);
    translate([-5,0,5])
    sphere(5);
}
}
rotate([5,0,0])
//eyes
union(){
scale([0.8,1,1])
translate([9,-13,8])
rotate([90,0,20])
difference(){
cylinder(5,5,5);
    translate([0,0,4.7])
    cylinder(0.4,3.5,3.5);
}
scale([0.8,1,1])
translate([-9,-13,8])
rotate([90,0,-20])
difference(){
cylinder(5,5,5);
    translate([0,0,4.7])
    cylinder(0.4,3.5,3.5);
}
}

//ears
rotate([20,-40,0])
translate([0,0,19])
difference(){
difference(){
cylinder(7,4,0);
    translate([-5,-10,-0.1])
    cube([10,10,7]);
}
translate([0,0,-0.5])
cylinder(4,3,0);
}
rotate([20,40,0])
translate([0,0,19])
difference(){
difference(){
cylinder(7,4,0);
    translate([-5,-10,-0.1])
    cube([10,10,7]);
}
translate([0,0,-0.5])
cylinder(4,3,0);
}
}
//body
difference(){
    translate([0,0,7])
union(){

//back

difference(){
cylinder(60,30,30);
    translate([-35,-70,-0.1])
    cube([70,70,71]);
}
difference(){
difference(){
scale([0.712,0.78,0.86])
translate([0,-5,45])
sphere(50);
translate([-50,-100,0])
cube([100,100,100]);
}
cylinder(60,50,50);
}
difference(){
    translate([0,0,40])
        sphere(50);
    translate([-50,-50,0])
    cube([100,100,90]);

}
//up-legs
translate([20,0,60])
sphere(10);
translate([-20,0,60])
sphere(10);

translate([0,0,-10])
//front
difference(){
scale([0.86,1.05,1.16])
difference(){
translate([0,30,40])
sphere(50);
    translate([-50,0,-10])
    cube([100,100,100]);
}
translate([30,-10,0])
cube([70,70,70]);
translate([-100,-10,0])
cube([70,70,70]);
}

//down-legs
translate([-19,0,5])
sphere(13);
translate([19,0,5])
sphere(13);
translate([-19,0,5])
rotate([90,0,14])
union(){
cylinder(26,13,13);
translate([0,0,26])
sphere(13);
}
translate([19,0,5])
rotate([90,0,-14])
union(){
cylinder(26,13,13);
translate([0,0,26])
sphere(13);
}
//tail
translate([0,24,-3])
sphere(5);
translate([0,33,-3])
rotate([90,0,0])
union(){
cylinder(8,5,5);
sphere(5);
}
}
translate([-100,-100,-200])
cube([200,200,200]);
}
}

translate([20,0,67])
rotate([90,0,0])
cylinder(100,3,3);
translate([-20,0,67])
rotate([90,0,0])
cylinder(100,3,3);

}
//nose
translate([0,-18,90])
sphere(3);
//up-leg
translate([-20,-15,70])
rotate([-90,90,0])
union(){
difference(){
union(){
translate([0,0,11.5])
rotate([0,40,0])
cylinder(5,3,3);
translate([0,0,11])
sphere(3.2);
cylinder(10,10,10);
sphere(10);
}
translate([-10,-10,-28])
cube([20,20,20]);
scale([0.8,1,1])
translate([2,0,-8.1])
cylinder(1,3,3);
scale([1,0.8,1])
translate([-2,4,-8.1])
cylinder(1,2,2);
scale([1,0.8,1])
translate([-2,-4,-8.1])
cylinder(1,2,2);
scale([1,0.8,1])
translate([-3.5,0,-8.1])
cylinder(1,2,2);
}
}
translate([20,-15,70])
rotate([-90,90,0])
union(){
difference(){
union(){
translate([0,0,11.5])
rotate([0,40,0])
cylinder(5,3,3);
translate([0,0,11])
sphere(3.2);
cylinder(10,10,10);
sphere(10);
}
translate([-10,-10,-28])
cube([20,20,20]);
scale([0.8,1,1])
translate([2,0,-8.1])
cylinder(1,3,3);
scale([1,0.8,1])
translate([-2,4,-8.1])
cylinder(1,2,2);
scale([1,0.8,1])
translate([-2,-4,-8.1])
cylinder(1,2,2);
scale([1,0.8,1])
translate([-3.5,0,-8.1])
cylinder(1,2,2);
}
}

```


[User]
I need a design for a Yubikey holder that can hold four Yubikeys. The holder should have a layered construction, essentially a top, a middle, and a bottom piece that will be bolted together with an M5 bolt and nut. The bolt should go all the way through and be around 13cm long.

The basic shape for each layer should be a combination of rectangular and circular elements. For the base, center of each layer, I need a central cube of 20x49x3 mm, and also a cube of 49x20x3 mm. These two pieces should form the main part of each layer, crossing each other. I also need three smaller rectangular cubes as part of each layer, one at [15,-5,0] with size [10,39,3], one at [5,-15,0] with size [39,10,3], and one at [-12,17,0] with size [39,15,3]. Each of these should be centered. In addition to the cubes, there should be two cylinders at [10,10,0] and [-10,-10,0], each with height of 3mm and radius of 14.5mm, centered. A final small cylinder at [20,-20,0], 3mm in height and radius 4.5mm, centered. These should all be part of each of the three layers.

The layers need some modifications:

For the top layer, I need the basic shape as described above, and then two spheres, each with a 5mm radius, placed at [15,-15,2.5] and [-15,15,2.5]. Also, I need a centered cube at [0,0,-4.3], size 11x11x5.7mm, cut out of the layer. Then there is a subtraction cut that includes a centered cube of 11x49x4.2mm at [0,0,-2.6].  Also included in that subtraction are two cylinders, at [15,-15,0] and [-15,15,0], both with 13mm height and radius, centered. Additionally, the top layer needs a centered cylinder with a 6.5mm radius, height of 13mm at [-31,10,0].  Finally, a cube of 50x50x10 should be added at [0,0,6.5], and a cut for the bolt with 3 concentric cylinders all located at [0,0,-14.7]. The cylinders for the bolt should be 13.2mm high with a radius of 2.6mm, one 3.7mm high with radius 4.4, and one at z=9.2 of 4mm high with a radius of 4.6mm and 6 sides. A final small cut of size 19.4x9.2x4 should be placed at [5,0,-3.5], and a final small cylinder cut with radius 3, height 3, at [0,0,-2] (all centered).  The entire top layer should be translated up [0,0,6.2*2].

The middle layer is similar to the base, but the sphere elements are replaced by the intersection of two sets of spheres, each at a height of -2.5 and 2.5 each. So the spheres are identical to the top layer, but intersecting. The central cutout should be a cube with size 11x11x5.7 centered at [0,0,0]. Additionally, just like the top layer, a centered cylinder with a 6.5mm radius, height of 13mm is required at [-31,10,0]. The middle layer should be translated up [0,0,6.2].

The bottom layer should have the base design, with spheres at [15,-15,-2.5] and [-15,15,-2.5] at the given radius of 5. A cut out cube at [0,0,3.3] with size 11x11x3.8 is centered. Then there is also a cut, similar to the top, which is a rotated and mirrored version of a 11x49x4.2mm cube at [0,0,2.6] and two cylinders of r=13, h=13 at [15,-15,0] and [-15,15,0]. As with the others, a cylinder of r=6.5, h=13, centered at [-31,10,0]. Finally, a cube of 50x50x10 centered at [0,0,-6.5], and the concentric cylinder bolt cut, as with the top layer, but all located at [0,0,-1.5].

Could you generate parametric OpenSCAD code for this, including all necessary comments? I’d like to be able to change the dimensions of the various parts later if necessary.

[Assistant]
final_mint_whole.scad:
```
//Top
translate([0,0,6.2*2])difference() {
    union() {
        cube([20,49,3], center=true);
        cube([49,20,3], center=true);
        translate([15,-5,0])cube([10,39,3], center=true);
        translate([5,-15,0])cube([39,10,3], center=true);
        translate([-12,17,0])cube([39,15,3], center=true);
        translate([10,10,0])cylinder(h=3, r=14.5, $fs=1, center=true);
        translate([-10,-10,0])cylinder(h=3, r=14.5, $fs=1, center=true);
        translate([20,-20,0])cylinder(h=3, r=4.5, $fs=1, center=true);
        translate([0,0,2.5]){
            translate([15,-15,0])sphere(r=5, $fa=5, $fs=1);
            translate([-15,15,0])sphere(r=5, $fa=5, $fs=1);
        }
        translate([0,0,-4.3])cube([11,11,5.7], center=true);
        difference() {
            translate([0,0,-2.6])cube([11,49,4.2], center=true);
            translate([15,-15,0])cylinder(h=13, r=13, $fs=1, center=true);
            translate([-15,15,0])cylinder(h=13, r=13, $fs=1, center=true);
        }
    }
    translate([-31,10,0])cylinder(h=13, r=6.5, $fs=1, center=true);
    translate([0,0,6.5])cube([50,50,10], center=true);
    translate([0,0,-14.7]){
        cylinder(h=13.2, r=5.2/2, $fs=1);
        cylinder(h=3.7, r=8.8/2, $fs=1);
        translate([0,0,9.2])cylinder(h=4, r=9.2/2, $fn=6);
    }
    translate([5,0,-3.5])cube([19.4,9.2,4], center=true);
    translate([0,0,-2])cylinder(h=3, r=3, $fs=1, center=true);
}

//Middle
translate([0,0,6.2])difference() {
    union() {
        cube([20,49,3], center=true);
        cube([49,20,3], center=true);
        translate([15,-5,0])cube([10,39,3], center=true);
        translate([5,-15,0])cube([39,10,3], center=true);
        translate([-12,17,0])cube([39,15,3], center=true);
        translate([10,10,0])cylinder(h=3, r=14.5, $fs=1, center=true);
        translate([-10,-10,0])cylinder(h=3, r=14.5, $fs=1, center=true);
        translate([20,-20,0])cylinder(h=3, r=4.5, $fs=1, center=true);
        intersection() {
            translate([0,0,-2.5]){
                translate([15,-15,0])sphere(r=5, $fa=5, $fs=1);
                translate([-15,15,0])sphere(r=5, $fa=5, $fs=1);
            }
            translate([0,0,2.5]){
                translate([15,-15,0])sphere(r=5, $fa=5, $fs=1);
                translate([-15,15,0])sphere(r=5, $fa=5, $fs=1);
            }
        }
    }
    translate([-31,10,0])cylinder(h=13, r=6.5, $fs=1, center=true);
    translate([0,0,0])cube([11,11,5.7], center=true);
}

//bottom
difference() {
    union() {
        cube([20,49,3], center=true);
        cube([49,20,3], center=true);
        translate([15,-5,0])cube([10,39,3], center=true);
        translate([5,-15,0])cube([39,10,3], center=true);
        translate([-12,17,0])cube([39,15,3], center=true);
        translate([10,10,0])cylinder(h=3, r=14.5, $fs=1, center=true);
        translate([-10,-10,0])cylinder(h=3, r=14.5, $fs=1, center=true);
        translate([20,-20,0])cylinder(h=3, r=4.5, $fs=1, center=true);
        translate([0,0,-2.5]){
            translate([15,-15,0])sphere(r=5, $fa=5, $fs=1);
            translate([-15,15,0])sphere(r=5, $fa=5, $fs=1);
        }
        translate([0,0,3.3])cube([11,11,3.8], center=true);
        rotate([0,0,90])mirror([0,1,0])difference() {
            translate([0,0,2.6])cube([11,49,4.2], center=true);
            translate([15,-15,0])cylinder(h=13, r=13, $fs=1, center=true);
            translate([-15,15,0])cylinder(h=13, r=13, $fs=1, center=true);
        }
    }
    translate([-31,10,0])cylinder(h=13, r=6.5, $fs=1, center=true);
    translate([0,0,-6.5])cube([50,50,10], center=true);
    translate([0,0,-1.5]){
        cylinder(h=13.2, r=5.2/2, $fs=1);
        cylinder(h=3.7, r=8.8/2, $fs=1);
        translate([0,0,9.2])cylinder(h=4, r=9.2/2, $fn=6);
    }
}
```


[User]
Hey, I'm looking to design a Raspberry Pi mount for my 3D printer. I've got a Prusa i3 and want to attach the Pi above the controller board. Basically, I need a platform with two mounting points that will grab onto the printer's frame.

The main platform should be a rectangular base, and on each end, there needs to be a mount that grabs the printer frame. I want to make this parametric, so I can easily adjust things later. I'm thinking the base needs to be a certain length, width, and thickness, then the mounting blocks at each end need to have their own set of measurements for width, height, and thickness.

Also, it'll need mounting holes for the raspberry pi, two at each end. Ideally, these holes should be sized for M3 screws and go through the whole thing, but we need to leave a little extra room around them so we can insert a nut and have some wiggle room for alignment. The holes on the base need to have additional clearance and go all the way through to allow for mounting screws.

I think it would be great if you could generate this as a parametric OpenSCAD file, or perhaps a pair of files. I’m going to want to include nuts and bolts as part of the final mount and would like them to be included in my .scad. I’m planning to use the BOLTS library for the hardware, so it would be great to have that included. I would also like to include the MCAD library so that I can adjust some of the tolerances. Thanks!

[Assistant]
raspberryPi.scad:
```
union() {

    difference() {
        translate([0,-10,0])cube([70,20,5]);
        translate([5,5,0])cylinder(h=10, r=1.7, $fs=0.01);
        translate([65,5,0])cylinder(h=10, r=1.7, $fs=0.01);
        translate([5,5,2.5])cylinder(10,3.2,3.2, $fn=6);
        translate([65,5,2.5])cylinder(10,3.2,3.2, $fn=6);
    }

    difference() {
        union() {
            translate([10,-10,0])cube([10,20,16]);
            translate([50,-10,0])cube([10,20,16]);
        }
        translate([10,-5,5])cube([50,15,6]);
    }
}
```


[User]
I'm looking to create a couple of printer mount designs in OpenSCAD, and I need them to be parametric so I can easily adjust them for different printer models in the future. Both designs are essentially a kind of clamp that goes around the printer's lower vertical shaft, allowing it to be mounted to a board.

The base structure of both mounts is a cube, 38x38x32 in size, with a cylinder cut out of the center going through the Z-axis; that cutout has a radius of 4 and extends 40 in the Z-axis. The mount will have two pairs of 'arms' that come out along the X axis, and these will be 8x40x20 in size and will be cut out of the main cube. There will also be two sets of 'support' structures going in the Y-axis; each set will be 10x40x30.

Each mount also has four counterbored holes that will allow bolts to mount to the board. These holes have a cylinder that goes through, with a radius of 2 and a height of 12. There is also a counterbore that is a cube with 18x10x5 size at depth of 27 and a cylinder cut from the center with r=13 and r2=18, h=5. I also want to mirror the counterbores to the other side.

The main difference between the two mounts is how the shaft grip is made.

For the first, larger, mount, two angled blocks are cut out of the main cube to create the grip. These blocks are created using the intersection of a cube that is rotated 45 degrees in the Y-axis, with a non rotated cube. Then I'll cut out a cube from the grip section to produce a c-shaped grip.

For the second, smaller mount, the blocks are again cut out in the same way, but the cut out cube after is much smaller, 10x10x10, leaving less material to grip. Also, the second mount has a cube that is 40x19x40 in size that is cut out of it.

Finally, both mounts will have a 40x40x5 cube that will be cut out of the bottom of the mounts to create a base for mounting to the wooden board.

I'd like the design to be fully parametric so that I can easily adjust the dimensions of the main cube, the cutouts, the counterbores, and the grip sections in the future. I need these generated as two separate .scad files. I'd prefer that you use the standard OpenSCAD libraries if possible.

[Assistant]
printer_mount.scad:
```
difference() {
    translate([0,0,-1]){
        difference() {
            difference() {
                difference() {
                    cube([38,38,32]);
                    translate([19,39
                    ,20])rotate([90,0,0])cylinder(h=40, r=4, $fs=0.01);
                    translate([15,-1,0])cube([8,40,20]);
                    translate([0,-1,9])cube([10,40,30]);
                    translate([28,-1,9])cube([10,40,30]);
                }
            }

            difference() {
                translate([10,0,27])cube([18,10,5]);
                translate([19,9,27])cylinder(5,18,13,$fn=4);
            }
            translate([0,28,0])difference() {
                translate([10,0,27])cube([18,10,5]);
                translate([19,1,27])cylinder(5,18,13,$fn=4);
            }

            translate([33,8.3,0])cylinder(h=12, r=2, $fs=0.01);
            translate([33,29.7,0])cylinder(h=12, r=2, $fs=0.01);
            translate([5,8.3,0])cylinder(h=12, r=2, $fs=0.01);
            translate([5,29.7,0])cylinder(h=12, r=2, $fs=0.01);

        }

        difference() {
            translate([0,0,9])intersection() {
                rotate([0,45,0])cube([15,38,15]);
                cube([10,38,10]);
            }
            translate([0,4,9])cube([10,30,10]);
        }

        rotate([0,90,0])difference() {
            translate([-19,0,28])intersection() {
                rotate([0,45,0])cube([15,38,15]);
                cube([10,38,10]);
            }
            translate([-19,4,28])cube([10,30,10]);
        }
    }
    translate([0,0,-5])cube([40,40,5]);
}
```
printer_mount_small.scad:
```
difference() {
    difference() {
        translate([0,0,-1]){
            difference() {
                difference() {
                    difference() {
                        cube([38,38,32]);
                        translate([19,39
                        ,20])rotate([90,0,0])cylinder(h=40, r=4, $fs=0.01);
                        translate([15,-1,0])cube([8,40,20]);
                        translate([0,-1,9])cube([10,40,30]);
                        translate([28,-1,9])cube([10,40,30]);
                    }
                }

                difference() {
                    translate([10,0,27])cube([18,10,5]);
                    translate([19,9,27])cylinder(5,18,13,$fn=4);
                }
                translate([0,28,0])difference() {
                    translate([10,0,27])cube([18,10,5]);
                    translate([19,1,27])cylinder(5,18,13,$fn=4);
                }

                translate([33,8.3,0])cylinder(h=12, r=2, $fs=0.01);
                translate([33,29.7,0])cylinder(h=12, r=2, $fs=0.01);
                translate([5,8.3,0])cylinder(h=12, r=2, $fs=0.01);
                translate([5,29.7,0])cylinder(h=12, r=2, $fs=0.01);

            }

            difference() {
                translate([0,0,9])intersection() {
                    rotate([0,45,0])cube([15,38,15]);
                    cube([10,38,10]);
                }
                translate([0,24,9])cube([10,10,10]);
            }

            rotate([0,90,0])difference() {
                translate([-19,0,28])intersection() {
                    rotate([0,45,0])cube([15,38,15]);
                    cube([10,38,10]);
                }
                translate([-19,24,28])cube([10,10,10]);
            }
        }
        translate([0,0,-5])cube([40,40,5]);
    }
    cube([40,19,40]);
}
```


[User]
I'd like to design a headpiece, something kind of fantastical. It'll have a few main elements: a base ring, some decorative rings around that, and then a star pattern in the front.

Let's start with the base. I want a simple ring shape, like a torus, but a bit more subtle. I'd like to be able to control its overall radius, its thickness (so, the radius of the torus tube itself), and its extrusion amount along the Z axis. It should start at z=0 and go up from there. I also want to be able to set the $fn for this piece so it's nice and smooth when rendered. It might be useful to be able to rotate this base ring around the Z axis. Maybe some other rotations will be useful too, so let's parameterize all rotation axes.

Then, I want to add a number of smaller decorative rings that circle the base ring. These rings will be circles that are rotated, translated, and scaled into position. The placement of these rings should be done using a "make_ring_of" module, which should be its own thing, like a library file so it can be reused. This library should take a radius, a count of rings, and some scaling values. The rings should be centered around the Z axis of the ring they're placed in. We should be able to set the thickness of the rings independently of the base ring (the radii).

Finally, there's a star shape. This star pattern will sit in the front of the headpiece. It should be created using a polygon, where the points are generated from polar coordinates. I want to control how many points it has and the radius of the "inner" and "outer" points - maybe a list of radii that can generate the points in a more detailed way. It would be great to have some control over where the star appears by being able to translate it. I want to be able to rotate the star in all three axes too, same as the base.

So to recap, I'm thinking of at least three files:
1.  a main headpiece.scad file which will define the overall assembly
2.  a make_ring.scad file containing the make\_ring\_of module
3. a star.scad file containing the star module

The main file should define all the parameters we've discussed and use the modules from the other files. I'd like the option to apply some colors to make it easy to visualize too, like how they do in the example.

[Assistant]
lsy.scad:
```
//Digital Design Fabrication HW2
//Suzy Lau ID20144649
//150914

//variables
/* [Star_Pattern] */
num=30;//[20,30,40]
radii=[3,4,5,6,5,4];

/* [Ring_Pattern] */
count=7;//[2:9]

$fn=100;
color("green")
rotate_extrude(convexity=100)
translate([20,0,0])
scale([1.0,2.0]) circle(r=1);

color("yellow")
make_ring_of(10, count)
translate([19,0,0])
rotate([0,90,-30])
star(num, radii);

module make_ring_of(radius, count)
{
    for (a = [0 : count - 1]) {
        angle = a * 360 / count;
        translate(radius * [sin(angle), -cos(angle), 0])
            rotate([0, 0, angle])
                children();
    }
}
module star(num, radii) {
  function r(a) = (floor(a / 10) % 2) ? 10 : 8;
  polygon([for (i=[0:num-1], a=i*360/num, r=radii[i%len(radii)]) [ r*cos(a), r*sin(a) ]]);
}

```


[User]
I need to design a lipo battery holder for a quadcopter, and I'd like to make it parametric so I can easily adjust it for different frame sizes. I've seen some designs that use rubber bands to secure the battery, and that seems like a good approach.

Here's what I'm thinking:

*   **Basic Shape:** I want a block-like structure, a rectangular prism. This will attach to the quadcopter frame, likely with an M3 screw.
*   **Dimensions:** I need to be able to control the overall block size. I'll need parameters for the length (X), width (Y), and height (Z) of the main block.
*   **Chamfers:** I like the idea of having the option to add chamfers to the edges of the block for a cleaner look and to remove any sharp corners. I'd like the ability to toggle between no chamfer, a 2D chamfer (just on the top edges), or a 3D chamfer (on all edges). The size of the chamfer should also be a parameter. With the 3D chamfer, I'd like a small ramp to be cut out so that the top face isn't full-width, that'll give some extra clearance if the battery is wider than the block.
*   **Mounting:** The block will need a hole for an M3 screw to attach it to the frame. I'd like a small cutout around the screw hole for easy printing, like a little triangular extension to provide some support for the hole.
*   **Rubber Band Slot:** There needs to be a slot on one side of the block for the rubber band to pass through. I want to be able to position this slot on the X and Z axes, and also control its width. I'd also like small circular holes at the end of the slot to prevent tearing the rubber.

For all of this, can you create an OpenSCAD file or files with the following requirements:

*   I'd like it to be fully parametric using named variables so that I can easily change the dimensions, chamfer type, and other features.
*   Please use `hull()` to create the chamfered shapes, as it makes clean shapes that are good for 3D printing.
*   I'd like the option of no chamfers, 2D chamfers (just along the top edges), or 3D chamfers (all edges).
*   Use `difference()` to remove holes and create the rubber band slot.
*   All circles/cylinders should have `$fn=30` or higher for smooth curves.

I don't have specific preferences for library use, so whatever makes the code the most clear and concise is great. If you do need to use a library, please note which one it is. I'm aiming for a single .scad file but if it makes sense to break it into multiple files, that's ok.

[Assistant]
Diatone_Lipoholder.scad:
```
//***********************************
//     Lipo Battery Holder for Diatone 250 FPV    *
//          Henning Stöcklein 25.10.2015            *
//          Free for Non-commercial Use             *
//***********************************

// Base Block Size X
cx = 10 ; // [7:15]

// Base Block Size Y
cy = 9 ; // [7:15]

// Base Block Height
ch = 10 ; // [7:15]

// Type of Block Chamfer
chamfer_type = 2 ; // [0:None, 1:2D-Chamfer, 2:3D-Chamfer]

//  Block Chamfer Radius
rCham = 0.9 ;

// Block Ramp Cutout (only 3D chamfer)
ramp = 2.2 ;

// M3 Thread Core Diameter
rM3 = 2.5 ;

// Ruber Slot Position X
slot_x = -0.5 ;

// Ruber Slot Position Z
slot_z = 0.4 ;

// Rubber Slot Width
rRub1 = 0.65 ;

// Rubber Slot End Hole Diameter
rRub2 = 2.2 ;

//*********  End of Customizing Area******************

module roundcube (x, y, z, rad)
{
    hull() {
      translate ([rad,rad,0]) cylinder (r=rad,h=z, $fn=30) ;
      translate ([rad, y-rad, 0]) cylinder (r=rad,h=z, $fn=30) ;
      translate ([x-rad, rad, 0]) cylinder (r=rad,h=z, $fn=30) ;
      translate ([x-rad, y-rad, 0]) cylinder (r=rad,h=z, $fn=30) ;
    }
}

module ballcube (x, y, z, rad)
{
    hull() {
      translate ([rad,rad,rad]) sphere (r=rad, $fn=30) ;
      translate ([rad, y-rad, rad]) sphere (r=rad, $fn=30) ;
      translate ([x-rad, rad, rad]) sphere (r=rad, $fn=30) ;
      translate ([x-rad, y-rad, rad]) sphere (r=rad, $fn=30) ;

      translate ([rad,rad,z-rad]) sphere (r=rad, $fn=30) ;
      translate ([rad, y-rad, z-rad]) sphere (r=rad, $fn=30) ;
      translate ([x-rad-ramp, rad, z-rad]) sphere (r=rad, $fn=30) ;
      translate ([x-rad-ramp, y-rad, z-rad]) sphere (r=rad, $fn=30) ;
      translate ([x-rad, rad, z-rad-ramp]) sphere (r=rad, $fn=30) ;
      translate ([x-rad, y-rad, z-rad-ramp]) sphere (r=rad, $fn=30) ;
    }
}

module holder ()
{
    difference ()
    {
       // Basic Cube with 2D or 3D chamfers
       if (chamfer_type == 0) { cube ([cx, cy, ch]) ; }
       if (chamfer_type == 1) { roundcube (cx, cy, ch, rCham) ; }
       if (chamfer_type == 2) { ballcube (cx, cy, ch, rCham) ; }

        // M3 Screw hole and hole extension for support-free printing
        translate ([1.5+rM3/2,cy/2,0]) cylinder (r=rM3/2, h=50, $fn=20) ;
        translate ([1.5+rM3/2,cy/2-rM3/2*0.7,0])
               scale ([1,0.8,1]) rotate ([0,0,45]) cube ([rM3/2,rM3/2,50], center=true ) ;

        // Slot for Rubber
        translate ([cx*0.65,cy,ch*0.65])
            hull() {
              translate ([slot_x,0,slot_z]) rotate ([90,0,0]) cylinder (r=rRub1, h=cy, $fn=20) ;
              translate ([4.5,0,-4.5]) rotate ([90,0,0]) cylinder (r=rRub1, h=cy, $fn=20) ;
           } // hull

        // Hole at end of Rubber slot
        translate ([cx*0.65+slot_x,cy,ch*0.65+slot_z]) rotate ([90,0,0]) cylinder (r=rRub2/2, h=cy, $fn=20) ;
    }
}

holder() ;
```


[User]
Hey, I'm looking to create a customizable paint bottle holder, and I'd like to use OpenSCAD. I've got about 30 of these small paint bottles and they're a pain to keep organized. I want a design where the bottles are slanted a bit, so it's easier to see the colors and pick them up. I was thinking of something parametric so I can adjust the number of bottles per row and column, the angle of the slant, and generally customize the whole thing to fit my space.

Here are the specific details I'm aiming for:

*   **Bottle Dimensions:** The bottles are roughly 35.5mm in diameter and 42mm tall, but I only need the holder to support the bottom 21.5mm or so of them.
*   **Container Customization:**
    *   I want to control the number of columns and rows. Let's say the ranges should be 1 to 20 for both, just in case I ever want to make a huge one.
    *   The slant (the angle of the bottles) should be adjustable, maybe between 0 and 25 degrees.
    *   I need an option to include a cover, or even a clip to hold the cover on. I want a way to choose between the container only, container with cover, container with cover and clip, or just the clip by itself, all controlled by a single variable.
    *   I'll need a parameter to control the thickness of this cover. Maybe let's start with 1.2mm.
*   **Advanced parameters:**
    *   I need a bit of thickness for the container walls, let's start with 1.5mm.
    *   I'd like to adjust how much overlap there is between each bottle hole, if any.  A good place to start might be 1mm offset, meaning the centers of the bottle holes are slightly closer than if they were tangent, but I should be able to make them tangent or overlap more.
    *   I'll also need to adjust the spacing between the holes relative to the bottle diameter so that the bottle can easily fit, a good value might be 1.7mm extra spacing relative to diameter.
    *   And the base of the container needs a bit of support thickness, like 2.5mm.

I don't need anything super fancy. I just want to keep it clean and printable. I'm hoping for a parametric design where I can tweak the basic parameters and not have to dive too deep into the code.

Could you create an OpenSCAD file that incorporates these parameters and features? I don't need it to be compatible with any specific libraries beyond the standard OpenSCAD library.

[Assistant]
Paint_Holder_9.scad:
```
/* [Global] */

/*[Container Size]*/

//Number of column
column = 2;  //[1:20]
//Number of row
row = 5; //[1:20]
//Degree of the slope
deg = 20;  //[0:25]
//Rendering of 3D model
object = 0;  //[0:Container,1:Container+Cover, 2:Container+Cover+Clip, 3:Clip ]
//Thickness of the plastic cover
coverThick = 1.2;

/*[Bottle Size]*/

//Diameter of each bottle
diameter = 35.5;
//Height of each bottle
bottleH = 42;
//Deepness of each bottle hole
holeH = 21.5;

/*[Advanced]*/
//Thickness of the container edge
space = 1.5;
//Duplicating area of each hole
offset = 1;
//Spacing of each hole against diameter of bottle
holespace = 1.7;
//Support thickness at the bottom
minusThick = 2.5;

/* [Hidden] */

holeDiameter = diameter + holespace ;

x = sqrt(space*space + holeH*holeH) * cos(90-deg-atan(space/holeH));
y = round((holeDiameter*column - offset*(column-1) +space/3) * cos(deg));

totalW = holeDiameter*row-offset*(row-1) + space*2 ;
totalH = ((holeDiameter-offset)*column+18)*sin(deg)+holeH;
totalD = x + y;

module Body(){

difference()
{

totalHW = (holeDiameter+3) * row ;

translate([-x,-totalW,-space,])
cube([totalD,totalW,totalH]);

rotate([0,-deg,0])
translate([-x*2,-(holeDiameter/2-2)*3*row,holeH-0.1])
cube([holeDiameter*column*2,(holeDiameter+4)*1.5*row, holeDiameter*column*cos(deg)]);

translate([0 ,-(holeDiameter)/2 - space,0])
rotate([0,-deg,0])
translate([holeDiameter/2*cos(deg)+1,0,0])
    {
for ( i = [0 : row-1 ] ){
translate([0,-(holeDiameter-offset)*i,0,])
for ( i = [0 : column-1 ] ){
translate([(holeDiameter-offset)*i,0,0,])
cylinder(h = holeH*2, r=holeDiameter/2, $fn=60);
 }
 }
 }

translate([minusThick,minusThick,0])
difference()
{
translate([-x,-totalW,-space-0.1,])
cube([totalD-minusThick*2,totalW-minusThick*2,totalH]);

rotate([0,-deg,0])
translate([-x*2,-(holeDiameter/2-2)*3*row,-space/3])
cube([holeDiameter*column*2,(holeDiameter+4)*1.5*row, holeDiameter*column*cos(deg)]);

translate([-x,-totalW,-space-0.1,]){
for ( i = [1 : row+1 ] ){
translate([0.1,i*(totalW-minusThick*2)/(row+2)-minusThick/2/2,0])
cube([totalD-minusThick*2,minusThick/2,totalH]);
}
}
}
}

}

module cover(){

    translate([-x+totalD,-totalW,holeH+sin(deg)*(holeDiameter*column-offset*(column-1)+space*2.2)-0.2])
    mirror([1,0,0])
rotate([0,deg,0]){
cube([5,totalW,bottleH-holeH]);

////hinge
translate([0,0,bottleH-holeH]){
difference(){
cube([5,2,5]);
rotate([90,0,0])
translate([2.5,2.5,-2.5])
cylinder(h = 3, r=2.7/2, $fn=30);
}
translate([0,totalW-2,0])
difference(){
cube([5,2,5]);
rotate([90,0,0])
translate([2.5,2.5,-2.5])
cylinder(h = 3, r=2.7/2, $fn=30);
}
}

}

}

module coverClip(deg){
if (object == 2 || object ==3) {
translate([-x+totalD,-totalW,holeH+sin(deg)*(holeDiameter*column-offset*(column-1)+space*2.2)-0.2]) mirror([1,0,0])

    rotate([0,deg,0])
    {

translate([0,0,bottleH-holeH]){

translate([1.5,2+2/2,1.5])
difference(){
    translate([0,0,-(3.5-2)/2])
    cube([11,totalW-2*2-1,3.5]);
    translate([5,-1,1-coverThick/2])
    cube([9,(totalW-2*2)+2,coverThick]);
}

rotate([90,0,0])
translate([2.25+1,2.5,-2.5]){
    translate([0,0,-0.5])
    cylinder(h = 1.3, r=1.5/2, $fn=6);
    translate([0,0,0.5-(totalW-2*2)])
    mirror([0,0,1])
    cylinder(h = 1, r=1.4/2, $fn=6);
}
}
}
}

}

///////main///////

rotate([0,0,90]) {
if (object ==0 || object ==1 || object ==2)
Body();

if (object == 1 || object ==2)
cover();

if (object ==3)
coverClip(0);
if (object ==2)
coverClip(deg);

}

```


[User]
Hey, I'm looking to get a parametric Jack-O-Lantern designed in OpenSCAD. I want to be able to control a few things, and it should be in two parts, the base and the lid.

Specifically, for the base, I'd like a pumpkin shape made up of repeating sections, kind of like a segmented sphere. The overall size should be adjustable with a `Size` parameter, and I want to be able to turn a nose on or off using a `Has_Nose` parameter, choosing between 1 for yes and 2 for no. The eyes should have a "cool" option using a `Cool_Eyes` parameter (1 for "cool," 2 for not). "Cool" eyes should have a kind of slanted pupil, the regular ones should just be simple cylinders.  Finally, the mouth should be changeable using a `Mouth_Expression` parameter; 1 for happy and 2 for a "not happy" face, maybe the not happy one is upside down?

The lid should fit on top and have a stem. Also, I'd like the stem to have a bit of a twist to it.

For both parts, make sure the design is parametric using the `Size` variable. It would also be great if the main pumpkin body is made using a module and is called using `Pumpkin()` so I can reuse it on the lid.

I'm not picky on libraries, so I think standard openscad would work.

[Assistant]
Pumpkin-DD.scad:
```
//Parts 1 = PUMPKIN NO LID, Parts 2 = LID
Parts = 1;
// Scaling the Model
Size=1; //[1]
//Detail
$fn = 40;
//Has Nose, 1 = YES, 2 = NO
Has_Nose = 1;
//Cool Eyes or nah, 1 = YES, 2 = NAH
Cool_Eyes = 1;
//Mouth Expression, 1 = Happy, 2 = Not Happy
Mouth_Expression = 1;
    //START MAKING MODULES HERE
    module Mouth()//its the mouth
    {
        translate([0,33 * Size,-28 * Size])
        {
            difference()
            {
                scale([45,40,15])
                {
                    cylinder(Size,0,Size,$fn=4);
                }
                translate([0,0,16*Size])
                {
                    scale([1.99,1,0.30])
                    {
                        sphere(r=Size*20);
                    }
                }
                translate([-5*Size,0,12*Size])//starting to make the mouth pillars MOUTH R1
                {
                    cube([5*Size, 20*Size, 25*Size],true);
                }
                translate([5*Size,0,12*Size])//starting to make the mouth pillars MOUTH L1
                {
                    cube([5*Size, 20*Size, 25*Size],true);
                }
                translate([-14*Size,0,12*Size])//starting to make the mouth pillars MOUTH R2
                {
                    cube([5*Size, 20*Size, 25*Size],true);
                }
                translate([14*Size,0,12*Size])//starting to make the mouth pillars MOUTH L2
                {
                    cube([5*Size, 20*Size, 25*Size],true);
                }
                translate([-24*Size,0,12*Size])//starting to make the mouth pillars MOUTH R3
                {
                    cube([5*Size, 20*Size, 25*Size],true);
                }
                translate([24*Size,0,12*Size])//starting to make the mouth pillars MOUTH L3
                {
                    cube([5*Size, 20*Size, 25*Size],true);
                }
            }
        }
    }

    module Nose()
    {
        translate([0,38*Size,-5*Size])
        {
            difference()
            {
                cylinder(10*Size, 8*Size,0);//large part
                cylinder(3*Size,11*Size,0,$fn=4);//small part
            }
        }
    }
    module Eye()//its an eye
    {
         translate([17*Size,37.*Size,Size*2])
         {
             if(Cool_Eyes == 1)
             {
                 hull()
                 {
                    cylinder(12*Size,10*Size,0);
                    translate([0,-2*Size,Size*17])
                    {
                        rotate([0,-50,0])
                        {
                            cylinder(7*Size, 1.75*Size,0);
                        }
                    }
                 }
            }
            if(Cool_Eyes == 2)
             {
                cylinder(12*Size,10*Size,0);

            }
         }
    }
    module PumpkinPart()
    {
        scale([Size*1.55, Size, Size*1.75])
        {
            translate([Size*9, 0, 0])
            {
                sphere(r=Size*20);
            }
        }
    }

    module Pumpkin()
    {
        PumpkinPart();

        mirror()
        {
            PumpkinPart();
        }
        rotate([0,0,36])
        {
            PumpkinPart();
        }

        rotate([0,0,-36])
        {
            PumpkinPart();
        }

        rotate([0,0,72])
        {
            PumpkinPart();
        }

        rotate([0,0,-72])
        {
            PumpkinPart();
        }

        rotate([0,0,-108])
        {
            PumpkinPart();
        }

        rotate([0,0,108])
        {
            PumpkinPart();
        }
        rotate([0,0,144])
        {
            PumpkinPart();
        }

        rotate([0,0,-144])
        {
            PumpkinPart();
        }
    }
color("orange")
{
    if(Parts == 1)
    {
            difference()
            {
                Pumpkin();
                scale([0.9,0.9,0.9])
                {
                    Pumpkin();
                }
                Eye();
                mirror()
                {
                    Eye();
                }
                if (Has_Nose == 1)
                {
                    Nose();
                }
                if (Mouth_Expression == 1)
                {
                    Mouth();
                }
                if (Mouth_Expression == 2)
                {
                    translate([0,0,-35])
                    {
                        rotate([0,180,0])
                        {
                            Mouth();
                        }
                    }
                }
                translate([0,0,40*(Size)])
                {
                    sphere(r=30*Size);
                }
            }
    }
    if (Parts == 2)
    {
        translate([0,0,18*Size])
        {
            cylinder(r1=24*Size,r2=26*Size,h=8*Size);
        }
            intersection()
        {
            difference()
            {
                scale([0.95,0.95,0.95])
                {
                    Pumpkin();
                }
                cube([100,100,40],true);
            }
            translate([0,0,Size*40])
            {
            sphere(r=Size*30);
            }

        }
        translate([1*Size,3*Size,0])
        {
            difference()
            {
                    linear_extrude(height = 100*Size, center = true, convexity = 10, twist = 1000,$fn=100)
                    translate([4*Size, 0, 0])
                    {
                    circle(r = 5*Size);
                    }
                translate([0,0,-22*Size])
                {
                    cube([1000*Size,1000*Size,100*Size],true);
                }
                translate([0,0,94*Size])
                {
                    cube([50*Size,50*Size,100*Size],true);
                }
            }
        }
    }
}
```


[User]
Hey, I'm looking for some help designing a customizable box/cube in OpenSCAD, kind of an artsy, geometric thing. I have some sketches of curved surfaces on a cube, and I want to create three different styles based on those curves.

Basically, each style will have two identical pieces that fit together to form the complete cube. I need to be able to control the overall size of the cube, whether it's solid or hollow, and if it's hollow, I need to be able to control the wall thickness.

Here's how the three curve types should work:

*   **Type 1:** Each face of the cube should have a quarter-circle cutout on it.
*   **Type 2:** Four of the six faces should have a half-circle cutout on them.
*   **Type 3:** Each face of the cube should have a 3/4 circle cutout on it, but I need to avoid having any zero-thickness walls. I was thinking that a partial ellipse could work for this?

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

*   `curvetype`: This will be an integer, either 1, 2, or 3 to select the style of curve.
*   `size`: This will determine the overall size of the cube.
*   `thickness`: This will only be relevant when making hollow versions; it'll define the wall thickness.
*   `MinWall`: This will only be relevant for curve type 3 and should add a minimum wall thickness to the part of the faces that might otherwise have 0 thickness.
*    `solid`: A boolean, either `true` or `false`, where `true` makes a solid cube and `false` makes a hollow cube.
*   `detail`: An integer that controls the `$fn` value (number of facets/resolution) for the curves.

Could you generate the OpenSCAD code for this? I don't need any external libraries to be used in this design.

[Assistant]
curvy_cube_1.scad:
```
curvetype = 1; // [1, 2, 3]
size = 50;
// Wall thickness, between inside and outside of cube.  Only relevant for Hollow style
thickness = 5;
// Adds thickness to walls portion that would be 0 width.  Only used for Curve Type 3
MinWall = 3;
solid = 0; // [1:Solid, 0:Hollow]
detail = 100;

module CurvyCube() {
  $fn = detail;
  translate([0,0,size/2]) {
    difference() {
      intersection() {
        difference() {
          union() {
            difference() {
              cube(size=size*1.5, center=true);
              rotate([0,0,45]) rotate([atan(2/sqrt(2)),0,0]) translate([0,0,size*4]) cube(size=size*8, center=true);
            }
            rotate([0,-90,0]) cylinder(h=size*2, r1=0,r2=size*2);
            rotate([-90,0,0]) cylinder(h=size*2, r1=0,r2=size*2);
            rotate([0,180,0]) cylinder(h=size*2, r1=0,r2=size*2);
          }
          rotate([0,0,0]) cylinder(h=size*2, r1=0,r2=size*2);
          rotate([90,0,0]) cylinder(h=size*2, r1=0,r2=size*2);
          rotate([0,90,0]) cylinder(h=size*2, r1=0,r2=size*2);
        }
      cube(size=size, center=true);
      }
    if (!solid) cube(size=size-thickness*2, center=true);
    }
  }
}

module dualRadiusCone(d, thick, angle) {
  r = d/2;
  $fn = detail;
  s = (r - thick) / r;
  err = 0.01; // avoid coincident faces
  rotate([0,0,angle])
    union() {
      intersection() {
        cylinder(h=r+err, r1=0,r2=r+err);
        rotate([0,0,0]) translate([-err,-err,err]) cube(size=r*2);
      }
      scale([1,s,1]) intersection () {
        cylinder(h=r+err, r1=0,r2=r+err);
        rotate([0,0,270]) translate([-err,-err,err]) cube(size=r*2);
      }
      scale([s,s,1]) intersection() {
        cylinder(h=r+err, r1=0,r2=r+err);
        rotate([0,0,180]) translate([-err,-err,err]) cube(size=r*2);
      }
      scale([s,1,1]) intersection () {
        cylinder(h=r+err, r1=0,r2=r+err);
        rotate([0,0,90]) translate([-err,-err,err]) cube(size=r*2);
      }
    }
}

module CurvyCube3() {
  $fn = detail;
  err = 0.001;
  translate([0,0,size/2]) rotate([0,0,0]){
    difference() {
      intersection() {
        cube(size=size, center=true);
        union() {
          difference() {
            cube(size=size*1.5, center=true);
            rotate([0,0,45]) rotate([atan(2/sqrt(2)),0,0]) translate([0,0,size*4]) cube(size=size*8, center=true);
            rotate([0,-90,0]) dualRadiusCone(size, MinWall, -90);
            rotate([-90,0,0]) dualRadiusCone(size, MinWall, -90);
            rotate([0,180,0]) dualRadiusCone(size, MinWall, 180);
          }
          rotate([0,0,0]) dualRadiusCone(size, MinWall, 90);
          rotate([90,0,0]) dualRadiusCone(size, MinWall, 180);
          rotate([0,90,0]) dualRadiusCone(size, MinWall, 0);
        }
      }
      if (!solid) cube(size=size-thickness*2, center=true);
    }
  }
}

module CurvyCube2() {
  $fn = detail;
  translate([0,0,size/2]) {
    difference() {
      difference() {
        cube(size=size, center=true);
        rotate([0,90,0]) cylinder(h=size*2, r1=0,r2=size*2);
        rotate([0,-90,0]) cylinder(h=size*2, r1=0,r2=size*2);
      }
      difference() {
        translate([-size, -size, 0]) cube(size=size*2);
        rotate([90,0,0]) cylinder(h=size*2, r1=0,r2=size*2);
        rotate([-90,0,0]) cylinder(h=size*2, r1=0,r2=size*2);
      }
      if (!solid) cube(size-thickness*2, size-thickness*2, size-thickness*2, center=true);
    }
  }
}

if (curvetype == 1) {
  color("DeepSkyBlue", 1) CurvyCube();
  //color("orange", 1) translate([10,-10,size+10]) rotate([180,0,0]) rotate([0,0,-90])  CurvyCube();
} else if (curvetype == 2) {
  color("Red", 1) CurvyCube2();
  //color("silver", 1) translate([0.01,0.01,size*1.75]) rotate([180,0,0]) rotate([0,0,-90]) CurvyCube2();
} else if (curvetype == 3) {
  color("lime", 1) CurvyCube3();
  //color("magenta", 1) translate([size,-size,size*1.75]) rotate([180,0,0]) rotate([0,0,-90]) CurvyCube3();
}

```


[User]
I need a parametric OpenSCAD design for a bearing housing. I'm looking for something similar to the design I've been working with, but I'd like to build it from the ground up to get a better handle on the process, and to have the design broken down in a more modular way. I've been using OpenSCAD for a bit now, and I'm fairly comfortable with it.

The basic shape should be a cube. Then, there should be a cylindrical recess in the center for a bearing. The bottom of the recess should have a thin "flange" with another cylindrical hole in the center. I also need four bolt holes with pockets for hex nuts. I would like each of the design elements to be easily modified with parameters. I expect this design to be printed with a 3D printer.

Here are the parameters I was thinking of:

*   `height`: Overall height of the housing.
*   `width`: Overall width (and depth) of the housing, since it's a cube.
*   `bearing_outer_diameter`: The outer diameter of the bearing that will fit into the recess.
*   `bearing_height`: The height of the bearing.
*   `flange_inner_diameter`: The diameter of the hole in the flange at the bottom of the bearing recess.
*   `bolt_center_distance_from_edge`: The distance from the edge of the cube to the center of the bolt holes.
*   `bolt_diameter`: The diameter of the bolt holes.
*   `nut_diameter`: The diameter of the hex nut pockets.
*   `nut_height`: The height (depth) of the hex nut pockets.

I want the code to be well organized and easy to modify. Please use comments to explain what the code is doing. I don't want to include multiple files, just a single, well-documented `.scad` file, please. Also, can you make sure it's using the $fn variable so that the number of segments of the cylinders can be changed? It also needs to use center = true for all the 3d primitives, please. I think that's everything.

[Assistant]
Parametric_bearing_housing.scad:
```
height = 8;
width = 40;
bearing_outer_diameter = 22;
bearing_height = 7;
flange_inner_diameter = 18;
bolt_center_distance_from_edge = 5;
bolt_diameter = 3;
nut_diameter = 5.5;
nut_height = 2.5;
translate([0,0,height/2]){
    union(){
        difference(){
            cube([width, width, height], center = true);
            cylinder(r = bearing_outer_diameter/2, h = height*1.1, center = true, $fn=60);
            translate([width/2-bolt_center_distance_from_edge, width/2-bolt_center_distance_from_edge, 0]){
                cylinder(r = bolt_diameter/2, h = height*1.1, center = true, $fn=60);
                translate([0,0,height-nut_height]){
                      cylinder(r = nut_diameter/2, h = height, center = true, $fn=6);
                }
            }
            translate([width/2-bolt_center_distance_from_edge, -width/2+bolt_center_distance_from_edge, 0]){
                cylinder(r = bolt_diameter/2, h = height*1.1, center = true, $fn=60);
                translate([0,0,height-nut_height]){
                      cylinder(r = nut_diameter/2, h = height, center = true, $fn=6);
                }
            }
            translate([-width/2+bolt_center_distance_from_edge, width/2-bolt_center_distance_from_edge, 0]){
                cylinder(r = bolt_diameter/2, h = height*1.1, center = true, $fn=60);
                translate([0,0,height-nut_height]){
                      cylinder(r = nut_diameter/2, h = height, center = true, $fn=6);
                }
            }
            translate([-width/2+bolt_center_distance_from_edge, -width/2+bolt_center_distance_from_edge, 0]){
                cylinder(r = bolt_diameter/2, h = height*1.1, center = true, $fn=60);
                translate([0,0,height-nut_height]){
                      cylinder(r = nut_diameter/2, h = height, center = true, $fn=6);
                }
            }

        }
        translate([0,0,-(height/2-(height-bearing_height)/2)]){
            difference(){
                cylinder(r = bearing_outer_diameter/2, h = height-bearing_height, center = true, $fn=60);
                cylinder(r = flange_inner_diameter/2, h = (height-bearing_height)*1.1, center = true, $fn=60);
            }
        }
    }
}

```


[User]
I need to design a knob shield for my stove to prevent my kids from playing with the knobs. I've been messing around with some OpenSCAD code (attached), but I'd really like a more robust and parametric solution I can easily tweak for different stoves.

Basically, the design consists of two cylinders, one for each knob, connected by a U-shaped bridge. The cylinders should have a raised wall around the knob to prevent access from the side, and a central hole that fits snugly around the knob shaft.

Here are the key parameters I need to control:

*   **Base Thickness (bt):** The thickness of the connecting bridge and the base of the cylindrical shields.
*   **Inner Diameter (innerD):** The diameter of the small hole cut out from the bottom of the shield (not the knob hole itself).
*   **Knob Hole Diameter (knobHoleD):** The diameter of the hole that fits around the knob's shaft.
*   **Knob Shield Thickness (kt):** The thickness of the wall around the knob.
*   **Knob Shield Height (kh):** The height of the wall around the knob.
*   **Knob Distance (kd):** The center-to-center distance between the two knobs.
*   **Arm Width (uX):** The width of the bridge connecting the two knob shields.
*   **Arm Length 1 (uY1):** The length of the bridge from the center of the knob to the start of the vertical arm.
*   **Arm Length 2 (uY2):**  The total length of the bridge from the center of the knob to the top of the connecting bridge.
*   **Slice Angle (slA):**  The angle of a slice taken off the top of the whole piece.
*  **Slice Z (slZ):** The Z-height of the slice.

I need a way to specify these parameters and have the OpenSCAD code generate the shield.  I'm also hoping to slice the top off the shield with a slanted cut for style and to reduce plastic use, so I'd like that part to be customizable too.

I would like to avoid using the MCAD library. Please use the BOSL2 library if you need a library at all; or if you think you can handle it without libraries, I'm good with that too.

[Assistant]
knobshield.scad:
```
// base thickness
bt = 2.2;

// center most circular cutout diameter
innerD = 26;

// diameter of inner hole that fits around the knob
knobHoleD = 55.79 + 0.6;

// thickness of shield around knob
kt = 2;

// height of shield around knob
kh = 45;

// knob distance, center to center
kd = 79.39;

// U shaped piece that connects 2 knobs
//! arm X (width of the arm)
uX = 25.6;

//! armY (length of arm from center of pot to bridge in arm)
uY1 = 29;

//! UY ( total Y from pot center to top oy connecting U)
uY2 = 45;

// fancy it up by slicing a chunk off the top
//! slice angle
slA = 155;

//! slice Z
slZ = 40;

// end of configurable parameters
$fn = 60;

module base( x )
{
    translate([x, 0, 0])
    {
        difference()
        {
            union()
            {
                cylinder( kh, d = knobHoleD + (2 * kt));
                translate( [-uX/2, 0, 0] )
                    cube( [uX, uY1, bt] );

            }
            union()
            {
                translate( [0, 0, bt] )
                    cylinder( kh, d = knobHoleD );

                translate( [0, 0, -1] )
                    cylinder( kt + 2, d = innerD );
            }
        }
    }
}

difference()
{
    union()
    {
        base( 0 );
        base( kd );
        translate( [-uX/2, uY1, 0] )
            cube( [kd + uX, uY2 - uY1, bt] );
    }
    union()
    {
        translate( [-500, 500, slZ - 120] )
            rotate( slA, [ 1, 0, 0] )
                cube( [1000, 1000, 100] );
    }
}

```


[User]
I'd like to create a Halloween-themed pumpkin with a sickle, and I'd like it to be customizable. Specifically, I want to be able to select between a few different styles of eyes for the pumpkin, and also change the color of the sickle. I also want to be able to control the size and render quality.

Here are the details:

*   **Overall Structure:** The design will include a pumpkin body, a sickle, and hands holding the sickle. I'm envisioning a slightly cartoonish look.
*   **Pumpkin Body:**  The pumpkin should have a somewhat rounded shape with some variation, kind of like a bumpy, stylized pumpkin. It should have a mouth, and it should have empty sockets for eyes.
*  **Eye Styles**: I need to be able to choose between three different styles for the pumpkin's eyes.
    *   **Style 1:**  Slit-like eyes, almost like a scary squint.
    *   **Style 2:**  More rounded, hollowed-out eyes, almost like bulging.
    *   **Style 3:** More oval shaped eyes with slight slant.
*   **Sickle:** The sickle should have a handle and a curved blade, maybe with some thickness.
*  **Hands:** I'd like the pumpkin to have two hands that look like they are holding the sickle.
*   **Customization:**
    *   **Part Selection:** I'd like to be able to select which parts are rendered (sickle, hands, body, or all of it together for printing)
    *   **Eye Style Selection:**  I need a way to select which of the three eye styles is used.
    *   **Sickle Color Selection:** I'd like to be able to choose the sickle color from a predefined list of options, specifically: Maroon, Red, Black, Midnight Blue, and White.
    *   **Project Size:** I need to be able to scale the entire project up or down, say, between a factor of 100 and 300.
    *  **Render Quality:** I want to be able to set the render quality, with options like "Draft" for preview and "Production" for final renders (lower and higher detail respectively).

Could you generate the OpenSCAD file(s) for this? I think I can get away with a single file, but if you need multiple, that's fine too. Also, I would prefer not to use any external libraries such as MCAD, BOSL or any others.

[Assistant]
D.X_Halloween_Project_sickle_pumpkin.scad:
```

// BEGIN CUSTOMIZER

//select part(s) to render
parts_render = 5; //[1:sickle ,2:hands,3:body,4:preview, 5:all(for print)]
//3 different eye style can CHOOSE!
eyestyle_render = 2; // [1: type1, 2:type2, 3:type3]
//selsect color to render
color_sickle_render = 5; //[1: Maroon, 2: Red, 3:Black, 4:MidnightBlue, 5:White]

//you can change the size of your project
project_size = 100;//[ 100: 300]

// Draft for preview, production for final
Quality_render = 28;    // [28:Draft,60:production]

$fn = Quality_render;

scale(project_size/scale_factor,project_size/scale_factor,project_size/scale_factor)
  {
    if (parts_render == 1) {
        if (color_sickle_render == 1) {
        color("Maroon")
        sickle() ;
    }

    if (color_sickle_render == 2) {
        color("Red")
        sickle() ;
    }
    if (color_sickle_render == 3) {
        color ("Black")
        sickle() ;
    }
    if (color_sickle_render == 4) {
        color ("MidnightBlue")
        sickle() ;
    }
    if (color_sickle_render == 5) {
        color ("White")
        sickle() ;
    }
}
    if (parts_render == 2) {
        translate([60,0,10])
        hands() ;

    }

    if (parts_render == 3) {
            body() ;

}

    if (parts_render == 4) {
       preview();
    }

    if (parts_render == 5) {
       all() ;
    }

    if (eyestyle_render == 1) {

        if (parts_render ==3) {

            !difference() {
                scale(project_size/scale_factor,project_size/scale_factor,project_size/scale_factor)
                body ();
          eyes_style_1 ();
                }

    }
        if (parts_render == 4) {

            !difference() {
                scale(project_size/scale_factor,project_size/scale_factor,project_size/scale_factor)

                preview ();
          eyes_style_1 ();

            }

    }
    if (parts_render == 5) {

            !difference() {
                scale(project_size/scale_factor,project_size/scale_factor,project_size/scale_factor)
                all ();

          eyes_style_1 ();

            }

    }
}

    if (eyestyle_render == 2) {

        if (parts_render ==3) {
            !difference() {
                scale(project_size/scale_factor,project_size/scale_factor,project_size/scale_factor)
                body ();
          eyes_style_2 ();

        }
        }
        if (parts_render == 4) {
           !difference() {
               scale(project_size/scale_factor,project_size/scale_factor,project_size/scale_factor)
                preview ();
          eyes_style_2 ();

        }
    }
    if (parts_render == 5) {

            !difference() {
                scale(project_size/scale_factor,project_size/scale_factor,project_size/scale_factor)
                all ();

          eyes_style_2 ();

            }

    }

    }

    if (eyestyle_render == 3) {

        if (parts_render ==3) {

            !difference() {
                scale(project_size/scale_factor,project_size/scale_factor,project_size/scale_factor)
                body ();
          eyes_style_3 ();
            }
        }
    }
        if (parts_render == 4) {

            !difference() {
                scale(project_size/scale_factor,project_size/scale_factor,project_size/scale_factor)
                preview ();
          eyes_style_3 ();
            }
        }
        if (parts_render == 5) {

            !difference() {
                scale(project_size/scale_factor,project_size/scale_factor,project_size/scale_factor)
                all ();

          eyes_style_3 ();

            }

    }
    }

  scale_factor = 156*1;
    module sickle () {
    difference() {
scale([0.6,0.6,0.6]) {
//sickle
color("Red") {

      rotate([90,180,90])

       union() {
    //stick
    translate([25,0,0])
    rotate([0,0,0]) {
    cylinder( r = 2, h = 140,center = true);
    }

    //mid part

    translate([25,0,70]){
        rotate([0,0,0]){
    hull() {
        translate([0,0,7.5])
          rotate([0,30,0])
            cylinder(r = 2, h = 5);
            cylinder(r = 2.3, h=5);
    }
        translate([0,0,7.5])
            rotate([0,30,0])
            cylinder(r1=2,r2=3.5,h=17);
    hull() {
     translate([6.5,0,20])
        rotate([0,30,0])
            cylinder(r1=3,r2=3,h=12);
    translate([14,0,29])
        rotate([0,10,0])
            cylinder(r1=3,r2=3,h=5);
    }
    translate([15,0,33])
        rotate([0,-20,0])
            cylinder(r1=3,r2=3,h=12);
    hull() {
     translate([11,0,43])
        rotate([0,-40,0])
            cylinder(r1=3,r2=3,h=5);
     translate([-8,0,55])
        rotate([0,50,0])
            cylinder(r1=3,r2=3,h=12);

    }

    }
   }
  translate([0,0,0]) {
    rotate([85,-95,0]) {
   //cylinders
   union() {

        difference() {
        translate([140,-20,-1])
            rotate([0,5,-90])
            cylinder(r=20, h=7,center =true);
         translate([140,-20,0])

            rotate([0,5,-90]) cylinder(r=13,h=50,center = true);
        }
    }

   //knife
   difference() {
    scale([1.12,1,1]) {
    translate([41,136,10.5]){
   rotate([0,5,-90]) {
   union() {
       difference() {
       hull() {
       rotate([0,-2,0]){
           union() {

       difference() {
       translate([100,0,0])
       cylinder(r= 110, h = 2.5,center = true);

       translate([110,-20,-1])
           cylinder(r= 120, h = 5, center = true);
           translate([110,0,-10])
           cube([100,100,100]);
       }

   }
   }

       union() {

       difference() {
       translate([100,0,0])
       cylinder(r= 115, h = 2.5,center = true);

       translate([110,-20,-1])
           cylinder(r= 120, h = 5, center = true);
           translate([110,0,-10])
           cube([100,100,100]);
       }

     }

   }
   translate([105,-25,-5])
   cylinder(r=115, h = 50,center = true);
       }
      }
     }
    }
   }
  union() {

      translate([158,-15.5,34])

            rotate([13,-18,-90]) cylinder(r=13,h=10,center = true);
        }

            }
           }
          }
         }

        }
    }

    translate([29,35,-1.8])
    cube([150,130,1.5],center = true);
        }

   }

   module hands() {
       color("DarkOrange") {
     scale([0.6,0.6,0.6]) {
      //hands
    rotate([12,0,0])
    union (){
    difference() {
    union() {

        translate([-140,-10 ,-5])
        rotate([-12,-20,0]) {
        scale([1.5,8,1.5]) {
        sphere(r=6);
        }
    }
      translate([-55,-10 ,-5])
        rotate([-12,20,0]) {
        scale([1.5,8,1.5]) {
        sphere(r=6);
        }
    }
}

translate([-75,-35,-1])
    rotate([0,88,-5]) {
    cylinder( r = 2.5, h = 180,center = true);
}
}
}
}
}
    }

    module body () {
scale([0.6,0.6,0.6]) {
    color("DarkOrange") {

translate([0,35,5]) {

  difference() {
    union() {
        translate([0,0,30])
        cylinder(r=5, h=20);

        translate([-1,0,47])
            rotate([0,30,0])
            cylinder(r=4.8, h=18);

            sphere(r = 38);

        translate([27,0,0])
            rotate([0,15,0])
                scale([1.5,1.5,2])
                sphere(r=20);

        translate([20,-20,0])
            rotate([15,15,0])
                scale([1.5,1.5,2])
                sphere(r=20);

        translate([0,-27,0])
            rotate([15,0,0])
                scale([1.5,1.5,2])
                sphere(r=20);

        translate([-27,0,0])
            rotate([0,-15,0])
                scale([1.5,1.5,2])
                sphere(r=20);

        translate([-20,20,0])
            rotate([-15,-15,0])
                scale([1.5,1.5,2])
                sphere(r=20);

        translate([0,27,0])
            rotate([-15,0,0])
                scale([1.5,1.5,2])
                sphere(r=20);

        translate([-20,-20,0])
            rotate([15,-15,0])
                scale([1.5,1.5,2])
                sphere(r=20);

        translate([20,20,0])
            rotate([-15,15,0])
                scale([1.5,1.5,2])
                sphere(r=20);
            }

        union() {
        scale([0.8,0.8,0.8]){
        translate([0,0,30])
        cylinder(r=5, h=20);

        translate([-1,0,47])
            rotate([0,30,0])
            cylinder(r=1, h=18);

            sphere(r = 38);

        translate([27,0,0])
            rotate([0,15,0])
                scale([1.5,1.5,2])
                sphere(r=20);

        translate([20,-20,0])
            rotate([15,15,0])
                scale([1.5,1.5,2])
                sphere(r=20);

        translate([0,-27,0])
            rotate([15,0,0])
                scale([1.5,1.5,2])
                sphere(r=20);

        translate([-27,0,0])
            rotate([0,-15,0])
                scale([1.5,1.5,2])
                sphere(r=20);

        translate([-20,20,0])
            rotate([-15,-15,0])
                scale([1.5,1.5,2])
                sphere(r=20);

        translate([0,27,0])
            rotate([-15,0,0])
                scale([1.5,1.5,2])
                sphere(r=20);

        translate([-20,-20,0])
            rotate([15,-15,0])
                scale([1.5,1.5,2])
                sphere(r=20);

        translate([20,20,0])
            rotate([-15,15,0])
                scale([1.5,1.5,2])
                sphere(r=20);
            }
            //hands
    union (){
    difference() {
    union() {

        translate([-40,-37 ,-19])
        rotate([-12,-20,0]) {
        scale([1.5,8,1.5]) {
        sphere(r=6);
        }
    }
      translate([45,-45 ,-10])
        rotate([-32,20,-1]) {
        scale([1.5,8,1.5]) {
        sphere(r=6);
        }
    }
}

translate([15,-35,2])
    rotate([0,79,-5]) {
    cylinder( r = 2.5, h = 180,center = true);
}
}
}
}

// mouth

    union() {
        scale([0.7,2,0.7])
        rotate([90,0,0])
        translate([-0,10,16]) {
            difference() {

            }
            translate([-45,-15,5])
            rotate([0,0,0])
            scale([0.25,1.2,2])
            sphere(r=10);

            translate([-38,-20,5])
            rotate([0,0,0])
            scale([0.25,1.2,2])
            sphere(r=10);

            translate([-30,-28,5])
            rotate([0,0,0])
            scale([0.25,1.3,2])
            sphere(r=10);

            translate([-19,-32,5])
            rotate([0,0,0])
            scale([0.25,1.4,2])
            sphere(r=10);

            translate([-8,-35,5])
            rotate([0,0,0])
            scale([0.25,1.5,2])
            sphere(r=10);

            translate([15,-35,5])
            rotate([0,0,0])
            scale([0.25,1.5,2])
            sphere(r=10);

            translate([4,-36,5])
            rotate([0,0,0])
            scale([0.25,1.6,2])
            sphere(r=10);

            translate([28,-32,5])
            rotate([0,0,0])
            scale([0.25,1.4,2])
            sphere(r=10);

            translate([40,-24,5])
            rotate([0,0,0])
            scale([0.25,1.3,2])
            sphere(r=10);

            translate([48,-15,5])
            rotate([0,0,0])
            scale([0.25,1.2,2])
            sphere(r=10);

       }
      }
     }
    }
   }
  }

 }

 module preview () {
     rotate([0,-10,0]){

        if (color_sickle_render == 1) {
        color("Maroon")
        sickle() ;
    }

    if (color_sickle_render == 2) {
        color("Red")
        sickle() ;
    }
    if (color_sickle_render == 3) {
        color ("Black")
        sickle() ;
    }
    if (color_sickle_render== 4) {
        color ("MidnightBlue")
        sickle() ;
    }
    if (color_sickle_render == 5) {
        color ("White")
        sickle() ;
    }
     }
  //hands
 color("Darkorange") {
 translate([0,25,2])
       scale([0.6,0.6,0.6]) {
 union (){
    difference() {
    union() {

        translate([-40,-37 ,-19])
        rotate([-12,-20,0]) {
        scale([1.5,8,1.5]) {
        sphere(r=6);
        }
    }
      translate([45,-45 ,-10])
        rotate([-32,20,-1]) {
        scale([1.5,8,1.5]) {
        sphere(r=6);
        }
    }
}

}
}
}
}
 scale([0.6,0.6,0.6]) {
    color("DarkOrange") {

translate([0,35,5]) {

  difference() {
    union() {
        translate([0,0,30])
        cylinder(r=5, h=20);

        translate([-1,0,47])
            rotate([0,30,0])
            cylinder(r=4.8, h=18);

            sphere(r = 38);

        translate([27,0,0])
            rotate([0,15,0])
                scale([1.5,1.5,2])
                sphere(r=20);

        translate([20,-20,0])
            rotate([15,15,0])
                scale([1.5,1.5,2])
                sphere(r=20);

        translate([0,-27,0])
            rotate([15,0,0])
                scale([1.5,1.5,2])
                sphere(r=20);

        translate([-27,0,0])
            rotate([0,-15,0])
                scale([1.5,1.5,2])
                sphere(r=20);

        translate([-20,20,0])
            rotate([-15,-15,0])
                scale([1.5,1.5,2])
                sphere(r=20);

        translate([0,27,0])
            rotate([-15,0,0])
                scale([1.5,1.5,2])
                sphere(r=20);

        translate([-20,-20,0])
            rotate([15,-15,0])
                scale([1.5,1.5,2])
                sphere(r=20);

        translate([20,20,0])
            rotate([-15,15,0])
                scale([1.5,1.5,2])
                sphere(r=20);
            }

        union() {
        scale([0.8,0.8,0.8]){
        translate([0,0,30])
        cylinder(r=5, h=20);

        translate([-1,0,47])
            rotate([0,30,0])
            cylinder(r=1, h=18);

            sphere(r = 38);

        translate([27,0,0])
            rotate([0,15,0])
                scale([1.5,1.5,2])
                sphere(r=20);

        translate([20,-20,0])
            rotate([15,15,0])
                scale([1.5,1.5,2])
                sphere(r=20);

        translate([0,-27,0])
            rotate([15,0,0])
                scale([1.5,1.5,2])
                sphere(r=20);

        translate([-27,0,0])
            rotate([0,-15,0])
                scale([1.5,1.5,2])
                sphere(r=20);

        translate([-20,20,0])
            rotate([-15,-15,0])
                scale([1.5,1.5,2])
                sphere(r=20);

        translate([0,27,0])
            rotate([-15,0,0])
                scale([1.5,1.5,2])
                sphere(r=20);

        translate([-20,-20,0])
            rotate([15,-15,0])
                scale([1.5,1.5,2])
                sphere(r=20);

        translate([20,20,0])
            rotate([-15,15,0])
                scale([1.5,1.5,2])
                sphere(r=20);
            }
            //hands
    union (){
    difference() {
    union() {

        translate([-40,-37 ,-19])
        rotate([-12,-20,0]) {
        scale([1.5,8,1.5]) {
        sphere(r=6);
        }
    }
      translate([45,-45 ,-10])
        rotate([-32,20,-1]) {
        scale([1.5,8,1.5]) {
        sphere(r=6);
        }
    }
}

translate([15,-35,2])
    rotate([0,79,-5]) {
    cylinder( r = 2.5, h = 180,center = true);
}
}
}
}

// mouth

    union() {
        scale([0.7,2,0.7])
        rotate([90,0,0])
        translate([-0,10,16]) {
            difference() {

            }
            translate([-45,-15,5])
            rotate([0,0,0])
            scale([0.25,1.2,2])
            sphere(r=10);

            translate([-38,-20,5])
            rotate([0,0,0])
            scale([0.25,1.2,2])
            sphere(r=10);

            translate([-30,-28,5])
            rotate([0,0,0])
            scale([0.25,1.3,2])
            sphere(r=10);

            translate([-19,-32,5])
            rotate([0,0,0])
            scale([0.25,1.4,2])
            sphere(r=10);

            translate([-8,-35,5])
            rotate([0,0,0])
            scale([0.25,1.5,2])
            sphere(r=10);

            translate([15,-35,5])
            rotate([0,0,0])
            scale([0.25,1.5,2])
            sphere(r=10);

            translate([4,-36,5])
            rotate([0,0,0])
            scale([0.25,1.6,2])
            sphere(r=10);

            translate([28,-32,5])
            rotate([0,0,0])
            scale([0.25,1.4,2])
            sphere(r=10);

            translate([40,-24,5])
            rotate([0,0,0])
            scale([0.25,1.3,2])
            sphere(r=10);

            translate([48,-15,5])
            rotate([0,0,0])
            scale([0.25,1.2,2])
            sphere(r=10);

       }
      }
     }
    }
   }
  }
 }

module eyes_style_1 () {
    scale(project_size/scale_factor,project_size/scale_factor,project_size/scale_factor) {
    color("Darkorange") {
   scale ([0.6,0.6,0.6]) {
    translate([0,35,5]) {
    union() {
    translate([-28,-55,20]) {
    scale([1,5,1])
        difference() {

        hull() {
        sphere(r = 8);

        translate([20,0,-6])
            cube([1,8,1],center = true);

    }
    translate([0,0,32])
        rotate([0,30,0])
        cube([100,50,50],center= true);

}
}
}

    union() {
        rotate([0,0,180])
        translate([-28,55,20]) {

            scale([1,5,1])
            difference() {

            hull() {
            sphere(r = 8);

            translate([20,0,-6])
                cube([1,8,1],center = true);

        }
        translate([0,0,32])
            rotate([0,30,0])
            cube([100,50,50],center= true);

        }
    }

}

}
 }
}
}
}

 module eyes_style_2 () {
     scale(project_size/scale_factor,project_size/scale_factor,project_size/scale_factor) {
     color("Darkorange") {
     scale ([0.6,0.6,0.6]){
     translate([0,35,5]) {
     union() {
    translate([-28,-55,20]) {
    scale([1,5,1])
        difference() {

        hull() {
        translate([2,0,0])
            sphere(r = 8);

        translate([7,0,-6])
            sphere(r= 12);

    }
    translate([0,0,32])
        rotate([0,30,0])
        cube([100,50,50],center= true);

}
}
}

    union() {
        rotate([0,0,180])
        translate([-28,55,20]) {

            scale([1,5,1])
            difference() {

            hull() {
            translate([2,0,0])
            sphere(r = 8);

            translate([7,0,-6])
                sphere(r=12);

        }
        translate([0,0,32])
            rotate([0,30,0])
            cube([100,50,50],center= true);

        }
    }

}
        }
    }
    }
}
}

   module eyes_style_3 () {
       scale(project_size/scale_factor,project_size/scale_factor,project_size/scale_factor) {
       color("Darkorange") {
       scale ([0.6,0.6,0.6]){
       translate([0,35,5]) {
       union() {
    translate([-28,-55,20]) {
    scale([1,5,1])
        difference() {

        hull() {
        translate([11,0,0])
            sphere(r = 8);

        translate([6,0,-5])
            sphere(r= 10.5);

    }

}
}
}

    union() {
        rotate([0,0,180])
        translate([-28,55,20]) {

            scale([1,5,1])
            difference() {

            hull() {
            translate([11,0,0])
            sphere(r = 8);
            translate([6,0,-5])
                sphere(r=10.5);

        }

        }
    }

}
  }
  }
       }
   }
   }
    module nose () {
    color ("Darkorange") {
    union() {
    union() {
    translate([-4,-55,7]) {
    scale([0.25,10,0.25])
        difference() {

        hull() {
        translate([11,0,0])
            sphere(r = 8);

        translate([6,0,-5])
            sphere(r= 10.5);

    }

}
}
}

    union() {
        rotate([0,0,180])
        translate([-4,55,7]) {

            scale([0.25,5,0.25])
            difference() {

            hull() {
            translate([11,0,0])
            sphere(r = 8);
            translate([6,0,-5])
                sphere(r=10.5);

        }

        }
    }

}
}
}
}
module all() {
    difference() {
  union () {
        body();
        translate([-10,0,-11])
        hands();
        translate([-20,-20,-19]){
  if (color_sickle_render == 1) {
        color("Maroon")
        sickle() ;
    }

    if (color_sickle_render == 2) {
        color("Red")
        sickle() ;
    }
    if (parts_render == 2) {
        translate([60,0,10])
        hands() ;

    }
      if (color_sickle_render == 3) {
        color ("Black")
        sickle() ;
    }
    if (color_sickle_render== 4) {
        color ("MidnightBlue")
        sickle() ;
    }
    if (color_sickle_render == 5) {
        color ("White")
        sickle() ;
    }
}
}

    translate([0,0,-20.5])
 cube([500,500,1],center = true);
}
}
```


[User]
Hey there, I'm trying to design a custom spring generator in OpenSCAD, and I'm having a bit of trouble getting it exactly how I want it. I've seen some cool designs online but they're not quite flexible enough. I'd love to be able to control all the dimensions and make it easily customizable.

Basically, I need a script that creates a helical spring with a few key parameters: the overall length of the spring, the outer diameter, the diameter of the wire itself, and the number of active windings. I'll also need a short pad at each end of the spring that is straight, so that it can be mounted easily. I'd like to be able to set the length of these pads too.

I was looking at this other spring design on Thingiverse, and I kinda liked the way it handles the ends of the spring. Instead of just chopping off the wire, it curves the end of the wire into a more flat 'mounting point'. Could we copy this style, so that the spring wire smoothly transitions into a straight section?

I’d also like to specify the resolution of the model, or how finely detailed the cylinder segments are. Something to control that would be great. I'm not using any libraries currently, but if you think there is a good one that might help, then I'm all ears. I'm happy to install any of the major libraries (MCAD, BOSL, BOSL2, dotSCAD, NopSCADlib, or BOLTS) if you think it would be useful, but I'd prefer it if it was just the base OpenSCAD features if possible.

In short, I'd like these parameters in my design:
- `springLength`: Overall length of the main spring section.
- `springDiameter`: The outer diameter of the spring.
- `filamentDiameter`: The diameter of the wire used to make the spring.
- `springWindings`: The number of active coils in the spring.
- `padLength`: The length of the straight sections at each end.
- `resolution`: Controls the smoothness of the cylinder segments.

Let me know what you think, I'm excited to see what you can come up with!

[Assistant]
remixed.scad:
```
// Device to produce PLA springs in openscad
// http://www.thingiverse.com/thing:188285/
// REFACTORED (well, prettied up) by sfinktah
//////////////////////////////////
// PARAMETERS
//////////////////////////////////
springLength = 80;             //  length of spring [mm]
springDiameter = 12.25;            //  spring outer diameter [mm]
filamentDiameter = 1.75;        //  spring wire diameter [mm]
springWindings = 8;            //  number of active windings
padLength = 5;                  //  top/bottom padding [mm]
resolution = 10;                //  resolution (nfi)
//////////////////////////////////

// INTERNAL PARAMETERS (DO NOT CHANGE)
//////////////////////////////////////
innerRadius = springDiameter / 2;
filamentRadius = filamentDiameter / 2;
outerRadius = innerRadius + filamentRadius;
windingHeight = springWindings / springLength;
step = 1 / windingHeight;
epsilon = 0.01;
//////////////////////////////////////

difference() {
	cylinder(h = springLength + 2 * padLength,
			r = outerRadius,
			$fn = resolution);
	union () {
		start();
		spring();
		end();
	}
}

module start() {
    translate(v = [-epsilon, outerRadius - filamentRadius*2, padLength] ) {
        rotate([0,-270,0]) {
            // the curved corner
            for (i = [0:resolution:90-resolution] ) {
                hull() {
                    rotate([i, 0, 0])
                    translate([0, filamentRadius * 2, 0] )
                        cylinder(h = 1,
                                 r = filamentRadius,
                                 $fn = resolution,
                                 center = true);
                    rotate([i+resolution, 0, 0])
                    translate([0, filamentRadius * 2, 0] )
                        cylinder(h = 1,
                                 r = filamentRadius,
                                 $fn = resolution,
                                 center = true);
                }
            }
            // straight section
            translate([0,0,filamentRadius*2])
            rotate([90,0,0])
                cylinder(h = 2 * outerRadius,
                         r = filamentRadius,
                         $fn = resolution,
                         center = false);
        }
    }
}

module end() {
	translate(v = [0, outerRadius - 2 * filamentRadius, padLength + springLength] ) {
		rotate(a = 270, v = [0, 1, 0] ) {
			for (i = [0:90] ) {
				rotate(a = i, v = [1, 0, 0] ) {
					translate(v = [0, filamentRadius * 2, 0] ) {
						rotate(a = i, v = [0, 0, 1] ) {
							if (i == 90) {
								cylinder(h = 2 * outerRadius,
										r = filamentRadius,
										$fn = resolution,
										center = false);
							} else {
								cylinder(h = 1,
										r = filamentRadius,
										$fn = resolution,
										center = true);
							}
						}
					}
				}
			}
		}
	}
}

module spring() {
    for (j = [0:(springWindings - 1)] ) {
        translate(v = [0, 0, j * step + padLength] ) {
            rotate(a = 270, v = [0, 1, 0] ) {   // flip it to basis plane[x,y]
                for (i = [0:resolution:360] )
                    hull() {
                        rotate(a = i, v = [1, 0, 0] )
                        translate(v = [(i / (360 * windingHeight)), outerRadius, 0] )
                            cylinder(h = 1,
                                     r = filamentRadius,
                                     $fn = resolution,
                                     center = true);
                        rotate(a = i+resolution, v = [1, 0, 0] )
                        translate(v = [(i / (360 * windingHeight)), outerRadius, 0] )
                            cylinder(h = 1,
                                     r = filamentRadius,
                                     $fn = resolution,
                                     center = true);
                }
            }
        }
    }
}
/* vim: set ts=4 sts=0 sw=4 noet: */
```


[User]
Hey, I'm working on a wheelchair cupholder project, and I need a way to create a customizable grip for the armrest. I have a basic OpenSCAD file that I've been experimenting with, but I'd really like to make it fully parametric and more user-friendly.

Essentially, I need a design that allows the user to input the inside dimensions of their armrest (length, width, and height), and then generates a grip that will hold the cupholder securely. I also think it would be useful to have the option for a couple of parameters to make the grip more customizable. So far I have an overall size, but I also need to consider the height of the base and the thickness of the sides.

Here's what I'm envisioning:

1.  **Parametric Armrest Dimensions:** The design should accept three input parameters: `armrest_length`, `armrest_width`, and `armrest_height`. These would correspond to the interior dimensions of the armrest where the grip attaches. I'd like to work in cm for the user parameters.

2.  **Grip Base Height:** There should be a parameter to control the height of the base of the grip that extends up from the armrest. Something like `grip_base_height`. This will determine how far up the grip extends along the side of the armrest.

3.  **Grip Side Thickness:** A parameter, such as `grip_side_thickness`, to control the thickness of the grip walls.

4.  **Cupholder Attachment:** For now, just assume a flat, rectangular space on the top of the grip for a cupholder attachment - I will add details there later. The width and length of this should be linked to `armrest_length` and `armrest_width`, with some added amount to make sure the attachment is larger than the armrest to provide good surface area.

5.  **Clearance:** Please make sure there's a small clearance (e.g. 1-2 mm) around the armrest dimensions to ensure the grip isn't too tight and is easy to fit on the armrest.

For the first pass, I'd like to keep the design relatively simple, maybe just rectangular or square, with a minimal structure. It would be cool if you could use some of the parametric capabilities of the BOSL2 library, if that would be helpful.

I think that should be enough to start, let me know if you have any questions or if you need more info.

[Assistant]
customizer_template_1.scad:
```

//CUSTOMIZER VARIABLES

//	This section is displays the box options
//	Measurement of box on the X axis
inside_dimension = 50;

//	Measurement of box on the Y axis
//y_measurement = 30;

//	Measurement of box on the Z axis
//z_measurement = 50;

//	This creates a drop down box of numbered options
//number_drop_down_box = 1;	//	[0,1,2,3,4,5,6,7,8,9,10]

//	This creates a drop down box of text options
//text_drop_down_box = "yes";	//	[yes,no,maybe]

//	This creates a drop down box of text options with numerical values
//labeled_drop_down_box = 5;	//	[1:small, 5:medium, 10:large, 50:supersized]

//	This creates a slider with a minimum and maximum
//numerical_slider = 1;	//	[30:80]

//CUSTOMIZER VARIABLES END

//	This is the cube we've customized!
difference() {

     cube([inside_dimension+4,30,50], center=true);
     translate([0,-2,0]) {
           cube([inside_dimension,30,52], center=true);
        }
      translate([0,-8,10]) {
         cube([100,30,10], center=true);
       }
      translate([0,-8,-10]) {
         cube([100,30,10], center=true);
       }

}

```


[User]
Hey, I'm looking to design some parametric wheels for a small project, like little balloon cars. I've got some basic ideas in mind, but I'd like to make them fully customizable.

I need the following parameters for the wheels:

*   **Outer Diameter:** The overall size of the wheel.
*   **Wall Thickness:** The thickness of the outer rim of the wheel and also the hub around the axle hole.
*   **Thickness:**  The overall width of the wheel, from one side to the other.
*   **Number of Spokes:**  How many spokes the wheel has. I'd like the option to have a lot of spokes so it's effectively a solid wheel.
*   **Spoke Thickness:** The thickness of the spokes themselves.
*   **Spoke Width:** The width of each spoke.
*   **Hub Thickness:**  The width of the central hub around the axle hole.
*   **Axle Diameter:** The diameter of the hole for the axle.

I'd also like to be able to specify how many wheels to print in a grid, using:

*   **Number of Wheels X:** Number of wheels in the x-direction of the print.
*   **Number of Wheels Y:** Number of wheels in the y-direction of the print.

For the basic wheel shape, I'd like:

*   A circular outer rim, with the specified outer diameter and wall thickness.
*   A central hub that's also circular and with the specified hub thickness, connected to the rim by spokes.
*   A circular axle hole going through the center of the hub.
*   The spokes should be evenly spaced.

Right now, I'm using simple cubes for the spokes, but I’m open to ideas here. I'm not sure how to easily generate more complex spoke shapes - would be cool if we could do that in the future.

I'd like the OpenSCAD code to be well-structured and easy to modify. It should also use the libraries available in OpenSCAD - maybe BOSL or BOSL2 for some more advanced stuff? But if you think MCAD would be a good fit, feel free to use that instead! It would be fantastic if the final output shows the grid of wheels in an easy to understand layout.

I've attached what I've written so far, but please don't try to improve upon it directly. Instead, I'd like you to start from scratch and generate a new design incorporating these parameters.

[Assistant]
simplewheel.scad:
```
outer_diameter=50;
wall_thickness=2;
thickness=5;
spokes=3;
spoke_thickness=thickness/2;
spoke_width=4;
hub_thickness=4;
axle=4;

//		How many to make?
//########################################################
number_x=4;				// Along the x-axis
number_y=2;				// Along the y-axis
//########################################################

//outer_diameter=50, axle=4, spokes=3, wall_thickness=2, thickness=5, spoke_thickness=thickness/2, spoke_width=5, hub_thickness=4

$fn=200;

module wheel()
{

difference()
{

union()
{

//########################################################
// Outer Ring
//########################################################

difference()
{

cylinder(r=outer_diameter/2, h=thickness);

translate([0,0,-1])
	cylinder(r=(outer_diameter/2)-wall_thickness, h=thickness+2);

}
//########################################################
// Hub
//########################################################

cylinder(r=axle/2+wall_thickness, h=hub_thickness );

//########################################################
// Spokes
//########################################################

for (i=[0:spokes-1])
{

rotate([0,0,(360/spokes)*i])
	translate([-spoke_width/2,0,0])
		cube([spoke_width,outer_diameter/2-wall_thickness,spoke_thickness]);

}

// Axle Hole.
}
translate([0,0,-1])
cylinder(r= axle/2, h=hub_thickness+2);
}
}

//#######################################################
//	Make some!
//#######################################################

for (i=[0:number_x-1], j=[0:number_y-1])
{
translate([i*(outer_diameter+wall_thickness),j*(outer_diameter+wall_thickness),0])
wheel();
}
```