[User]
I've been working on a design for a wax stamp, and I think it would be a fantastic addition to Thingiverse if it could be made into a parametric model using OpenSCAD. The idea came to me when I was designing a stamp with my and my wife's initials, "K P," in FreeCAD. I realized others might want to personalize their own stamps for sealing messages and adding a personal touch to their correspondence.

Here's the gist of what I'm looking for:

*   The stamp should have a handle and a circular base where the user can imprint their initials.
*   Users should be able to input two initials, a first initial and a second initial.
*   There should be an option to have just one initial if the user only wants to use one.
*   If two initials are selected, they should be arranged at a slight angle, adding a bit of flair. There should be an option to control this angle.
*   If only one initial is used, it should be centered and larger.
*   The depth of the text should be customizable.
*   There should also be an option to add a decorative border around the edge of the stamp.
*   For the border, users should be able to choose between a series of small circles or squares, and the depth of the border should be adjustable.

To make this Thingiverse Customizer, you'll need to utilize the "Write.scad" library. This should be all the information you need, but let me know if anything is unclear or if you have any questions about the design!

[Assistant]
Stamp.scad:
```
use <write/Write.scad>
// preview[view:south, tilt:bottom]

/* [Option Set 1] */
first_character = "W";
second_character = "S";
text_depth = 1.5; // [0.5, 1.0, 1.5, 2.0, 2.5]
text_angle = 3.5; // [3.5:Angled Letters, 0:Horizontal Letters]

/* [Option Set 2] */
show_border = "No"; // [No, Yes]
border_type = 0; // [0: Circles, 1: Squares]
border_depth = 0.3; // [0.3, 0.4, 0.5]

/* [Hidden] */
preview_tab = "";
stamp_imprint();

module stamp_imprint() {
    difference() {
        // The stamp (with handle) and letter(s) removed
        union() {
            translate([0, 0, 3 + 6]) cylinder(12, d=10, center = true); // The handle

            difference() {
                translate([0, 0, 1.5]) cylinder(3, d=27.5, center=true); // The full face
                if (first_character != "" && second_character != ""){ //Extract two letters
                    translate([0, 0, -.1])
                    linear_extrude(height = text_depth+.1){
                        translate([-5, text_angle, 0])
                        text(first_character[0], halign = "center", valign = "center",
                        size=9, font = "Liberation Sans:style=Bold");
                    }
                    translate([0, 0, -.1])
                    linear_extrude(height = text_depth+.1){
                        translate([5, -1*text_angle, 0])
                        text(second_character[0], halign = "center", valign = "center",
                        size=9, font = "Liberation Sans:style=Bold");
                    }

                    write(".", t = 0, h = 0, center = true);
                }
                else if (first_character != "") { // If only one letter, extract it
                        translate([0, 0, -.1])
                        linear_extrude(height = text_depth+.1){
                        text(first_character[0], halign = "center", valign = "center",
                        size=15, font = "Liberation Sans:style=Bold");
                    }

                    write(".", t = 0, h = 0, center = true);
                }
                else { // If only one letter, extract it
                    translate([0, 0, -.1])
                    linear_extrude(height = text_depth+.1){
                        text(second_character[0], halign = "center", valign = "center",
                        size=15, font = "Liberation Sans:style=Bold");
                    }

                    write(".", t = 0, h = 0, center = true);
                }
            }

        }

        // The stamp (with handle) and border removed
        if (show_border == "Yes"){
            if (border_type == 0){ // Extract the circle border
                for (i = [0:1:9]) {
                    translate([sin(i*36)*12, cos(i*36)*12, border_depth/2-.1])
                    cylinder(border_depth, d=2.5, center=true);
                }
            }
            else{
                for (i = [0:1:9]) { // Extract the square border
                    translate([sin(i*36)*12, cos(i*36)*12, border_depth/2-.1])
                    rotate([0, 0, -i*36])
                    cube([2, 2, border_depth], center=true);
                }
            }

        }
    }
}
```


[User]
I have a couple of ideas for 3D-printable designs I'd like to implement in OpenSCAD, and I'd like to request your help in generating the designs. The files should be fully parametric so that I can easily adjust them.

The first design is a wedge for a camera mount on a quadcopter. This wedge should have a customizable angle, width, length, and thickness at the vertex. I should be able to adjust these parameters to fit various camera and quadcopter models. The wedge will essentially be a cylinder rotated 90 degrees, with the bottom quarter used as the base. A small cube will be added to the top to create the desired thickness, and the whole assembly will be rotated by the specified angle. The part below the XY plane will then be removed.

The second design is a customizable doorstop, similar to the IKEA HODOR doorstop. This doorstop will also be a wedge, but with adjustable width, length, height, and angle. I want to be able to tweak these parameters in the OpenSCAD customizer to fit any door or floor gap.

For both designs, please use the MCAD library.

Could you generate parametric OpenSCAD files for both of these designs, using the specifications I've described?

[Assistant]
Apoyo_de_camara.scad:
```
// Creacion de cuña paramétrica para apoyo de camara en cuad

//Variables:
ancho=25;
largo=40;
grueso=2; // En el vertice de la cuña.
angulo=15; // En grados, menor de 90º

// Creacion del la cuña en los siguientes pasos:
// 1. Creacion de un cilindro para la base del la cuña
// 2. Al cilindro anterior le hacemos una interseccion booleana para quedarnos con el cuarto inferior.
// 3. Se le crea un cubo superior para generar el grueso de la cuña
// 4. Se gira todo el cuerpor de la cuña el angulo
// 5. Se elimina la parte por debajo del plano XY

// 5.Sustraccion del cuerpo cubo de sobrante al cuerpo base
difference(){
// 4.Rotacion del cuerpo base
rotate([0,-angulo,0])
// 3. Cuerpo de la cuña incluido el gruueso
    union(){
    // 2.Cuerpo de la cuña
    intersection(){
    // 1. Cilindro base
    rotate([90,0,0])
    cylinder(r=ancho,h=largo,$fn=200, center=true);
    // 2.Cubo para Base
    translate([0,-((largo/2)+1),-ancho-2])
    cube([ancho+2,largo+2,ancho+2]);
    }
    //3.cubo de grosor superior
    translate([0,-largo/2,0])
    cube([ancho,largo,grueso]);
}
// 5.cubo para eliminiacion del sobrante
translate([-1,-((largo/2)+1),-ancho-2])
cube([ancho+2,largo+2,ancho+2]);
}
```


[User]
I need an OpenSCAD design for a phone/tablet holder that fits into the CD slot of my Ford Fiesta (2008-2016 model) or Ford Ecosport (2013-2016 model). It should be strong enough to withstand the heat inside a car parked under the sun, so ABS is preferred over PLA. I'd like the option to reinforce it with metal rods, especially if the base gets too long.

The design should consist of a base and two identical end pieces. The ends will plug into the base, creating a slot where the tablet or phone will rest. The whole assembly will then be inserted into the CD slot.

Here's what I need to be able to customize:

*   **Base:**
    *   Width (slightly larger than device thickness)
    *   Thickness (for strength)
    *   Height (shouldn't block the view)
    *   Length (long enough to hold the device securely)
    *   Optional hole radius for inserting reinforcing metal rods
    *   Option to split the base into two halves for easier printing (in case my printer isn't tall enough)
    *   Option to generate a mirrored half of the base for the split base option
*   **End Pieces:**
    *   Device thickness
    *   Length (shouldn't block the view)
    *   Spacer height (to raise the device and unblock the view if needed)
    *   The end pieces need to fit snugly into the base, so some kind of tolerance parameter would be helpful to adjust the fit.

Essentially, I want to be able to specify the dimensions of my device and the desired base, and the OpenSCAD code should generate the corresponding parts that will fit together. The base should have features to securely fit in the CD slot, and maybe have some textured surfaces on the end pieces to grip the device better.

I'd also like to include a warning in the documentation about not ejecting a CD while the holder is in place, as it could damage the CD or the holder.

The final SCAD file(s) should be well-commented so I can easily understand and modify the design. Use the MCAD library for your design.

[Assistant]
FordFiestaEcosportCDSlotHoldTabletPhone.scad:
```
// Version 2.0
// Updates from previous version:
// Add base hole for reinforcement with metal rod
// Add base cutting mode

$fn=100+0;

// Choose to generate the base or the end
Mode = "Base"; // [Base,End]

// Base width (millimeter) larger than device thickness
BaseWidth = 10; // [6:12]
// Base thickness (millimeter) thicker is stronger
BaseThickness = 7; // [4:8]
// Base height (millimeter) block view if too high
BaseHeight = 15; // [5:17]

// Base length (millimeter) needed when generating the base
BaseLength = 190; // [180:300]

// Base hole radius (millimeter) specify when you want to add metal rod inside the base hole for re-inforcement
BaseHoleRadius = 3; // [0:3.5]

// Choose Yes to cut the base at middle - so that you can print 2 halves of the base, one normal half + one mirrored half
BaseCut = "Yes"; // [Yes,No]
// Choose Yes to get the mirror image of the base
BaseMirror = "No"; // [Yes,No]

// Assembly Tolerance (milimeter) adjust if fitting of the base and the end is not good

Tolerance = 0; //[-2:0.1:2]

// Device thickness (millimeter) this and below parameters needed when generating the end
DeviceThickness = 9; // [5:15]
// End Length (millimeter) block view if too lengthy
EndLength = 15; // [10:23]
// End Spacer (millimeter) raise device to unblock view
EndSpacer = 5; // [0:10]

if (Mode == "Base")
    {
        if (BaseMirror=="Yes")
        {
        mirror([1,0,0])all(aw=BaseWidth,at=BaseThickness,ah=BaseHeight,ac=BaseLength-177);
        } else {
        all(aw=BaseWidth,at=BaseThickness,ah=BaseHeight,ac=BaseLength-177);
        }
    }
else
    {
        end(thick=DeviceThickness,deep=EndLength,w=BaseWidth-1+Tolerance,t=BaseThickness,h=BaseHeight,s=EndSpacer-1.01);
    }

module end(thick=8,deep=15,w=8.9,t=5.5,h=15,s=5)
{
   translate([18,-22.7,3])rotate(acos(7/7.8)-5,[0,0,1])
difference()
{
    translate([15,12-(20-2*w),0.5+deep/2])rotate(90,[1,0,0])la2(H=2*w+s,L=deep-5,T=w-1);
    translate([15,13-(20-2*w),0.5+deep/2])rotate(90,[1,0,0])la2(H=2*w,L=deep-5+0.01,T=w-1+0.01);
    translate([15-(w+t)/2.0+1,20-h,5])rotate(90,[1,0,0])la(H=20,L=40,T=t+0.5);
translate([15+(w+t)/2.0-1,20-h,5])rotate(90,[1,0,0])la(H=20,L=40,T=t+0.5);
}
    difference()
    {
translate([35,-25,1])cylinder(h=deep,r=20);

       translate([13.9,-23.4,0])rotate(acos(7/7.8)-5,[0,0,1])rotate(90,[1,0,0])for (i=[+0.5:2.7:deep+3])
{
translate([19-(w/2+t)+1.0,i,8.32-(15-h)/2])rotate(45,[0,0,1])cube([2,2,h+4],center=true);
translate([19+(w/2+t)-1.0,i,8.32-(15-h)/2])rotate(45,[0,0,1])cube([2,2,h+4],center=true);
translate([19-(w/2+t)+1.0+1,i+1.5,8.32-(15-h)/2])cube([2,2,h+4],center=true);
translate([19+(w/2+t)-1.0-1,i+1.5,8.32-(15-h)/2])cube([2,2,h+4],center=true);
}

translate([0,0,-4])
rotate(90,[1,0,0])
translate([14.4,0,24.2])
rotate(acos(7/7.8)-5,[0,1,0])
translate([19,35,15])
rotate(90,[1,0,0])
la(H=20,L=30,T=thick);

translate([0,0,-4])
rotate(90,[1,0,0])
translate([14.4,0,24.2])
rotate(acos(7/7.8)-5,[0,1,0])
translate([19,35,-4])
rotate(90,[1,0,0])
la(H=20,L=30,T=8);

translate([18,-22.7,0])rotate(acos(7/7.8)-5,[0,0,1])
{
translate([-10,2,0])cube(50);
translate([15-(w+t)/2.0+1,20-h,5])rotate(90,[1,0,0])la(H=20,L=40,T=t+0.5);
translate([15+(w+t)/2.0-1,20-h,5])rotate(90,[1,0,0])la(H=20,L=40,T=t+0.5);
translate([15,13,5])rotate(90,[1,0,0])la2(H=20,L=30,T=w-1);
translate([-32,-20,0])cube(30);
translate([32,-20,0])cube(30);
    }
}
}

module all(aw=8.9,at=5.5,ah=15,ac=80)
difference()
{
union()
{
translate([0,0,-4])
rotate(90,[1,0,0])
difference()
{
union()
{
translate([0,-12.5,0])nen(w=129,s=60,hh=ac);
translate([12.,0,24.2])rotate(acos(7/7.8)-5,[0,1,0])do(w=aw,t=at,h=ah,c=ac);
}
translate([60/2,ac+175-60,11.5])rotate(90,[1,0,0])cylinder(h=ac+1080,r=BaseHoleRadius);
}
translate([0,2.1,0]) de2(ac);
}
translate([21,-15.,-132+50])cylinder(h=ac+177,r=BaseHoleRadius);
if (BaseCut=="Yes") {
    translate([0,0,-250-81+129/2])cube(500,center=true);
}
}

module de2(ac)
{
difference()
{
union()
{
translate([21,-17,-131+50])cylinder(h=ac+175,r=6);
for(i=[0:4:20])
{
translate([i+6,0,-131+50])cylinder(h=129,r=2.8);
}
translate([6,-2.8,-131+50])cube([24,2.8*2,129]);
translate([6,-2.8,-131+50])rotate(10,[0,0,1])cube([12,2.8*2,129]);
translate([16,-2,-131+50])rotate(5,[0,0,1])cube([14.5,2.8*2,129]);
}
translate([6,0,-131+49])cylinder(h=138,r=1.5);
translate([6,-0.5,-131+49])rotate(1,[0,0,1])cube([110,0.5,139]);
translate([6,-0.375,-131+49])rotate(1.75,[0,0,1])cube([110,0.5,139]);
translate([6,-0.25,-131+49])rotate(2.5,[0,0,1])cube([110,0.5,139]);
translate([6,-0.125,-131+49])rotate(2.75,[0,0,1])cube([110,0.5,139]);
translate([6,0,-131+49])rotate(3.5,[0,0,1])cube([110,0.5,139]);

translate([0,-1,49])rotate(-55,[1,0,0])cube(50,centre=true);
translate([0,42,-110.5])rotate(5,[0,0,1])rotate(55,[1,0,0])cube(50,centre=true);

translate([-30,5,-16.5])rotate(90,[1,0,0])cylinder(h=10,r=40);
}
}

module nut(a=20)
{
translate([12.5,-20,0])rotate(a,[0,1,0])translate([2.5,10,19])translate([-5,0,0])rotate(90,[0,1,0])cylinder(h=5,r=1.6);
translate([12.5,-20,0])rotate(a,[0,1,0])translate([2.5,10,19])difference(){sphere(r=3);translate([-5,0,0])cube(10,center=true);}
}

module nen(w=80,s=60,hh=80)
{
union()
{
difference()
{
union()
{
translate([s/2,w/2,2])rotate(90,[1,0,0])
    cylinder(h=w,r=4);
translate([s/2,hh+175-64.5,13.0])rotate(90,[1,0,0])
    cylinder(h=hh+175,r=8);
translate([s/2,0,5])cube([8,w,6],center=true);
}
translate([0,0,66])cube([100,500,100],center=true);
}
}
}

module do(t=5.5,a=0,h=15,w=8.9,c=80)
{

difference()
{
union()
{
difference()
{
translate([11,-40-54+17-0,-5])cube([16,c+120+127-90+12+6,10]);
translate([19,105+c,5])rotate(90,[1,0,0])cylinder(h=130+500,r=w/2);
}
translate([13+w+t-(w-8)/2-(t-4)/2,-18.5+29+c/2,0])la(H=h,L=138+c+37,T=t,A=a);
translate([13-(w-8)/2-(t-4)/2,-18.5+29+c/2,0])la(H=h,L=138+c+37,T=t,A=a);
}

translate([9.1-(t-4)-(w-8)/2,-80,-10])cube([2,179+c,100]);
translate([11+w+2*t-0.1-(t-4)-(w-8)/2,-80,-10])cube([2,179+c,100]);
for (i=[-81:2.7:280])
{
translate([11.1-(t-4)-(w-8)/2,i,5])rotate(45,[0,0,1])cube([2,2,100],center=true);
  translate([11+w+2*t-0.1-(t-4)-(w-8)/2,i,5])rotate(45,[0,0,1])cube([2,2,100],center=true);
}

}
}

module la(H=20,L=10,T=4,A=0)
{
rotate(A,[0,1,0]) union()
{
translate([0,0,H/2])cube([T,L,H],center=true);
translate([0,L/2,H])rotate(90,[1,0,0])
    cylinder(h=L,r=T/2);
translate([0,L/2,0])rotate(90,[1,0,0])
    cylinder(h=L,r=T/2);
}
}

module la2(H=20,L=10,T=4,A=0)
{
rotate(A,[0,1,0]) difference()
{
translate([0,0,H/2])cube([T,L,H],center=true);
translate([0,L/2+0.1,H])rotate(90,[1,0,0])
    cylinder(h=L+0.2,r=T/2);
translate([0,L/2+0.1,0])rotate(90,[1,0,0])
    cylinder(h=L+0.2,r=T/2);
}
}
```


[User]
I'm looking for an OpenSCAD design for a customizable button. I need to be able to control the overall diameter, the thickness, and the number of sewing holes. Also, I want the option to have a flat cut on the top, bottom, both, or none. This should produce a parametric design, of course.

The sewing holes should be evenly spaced around the center at a specified distance. The size of these holes should also be adjustable. I would like the button to have a rounded edge, with the radius of that rounding customizable.

Essentially, I want a flexible way to create different button shapes. The way the flat cuts work are that the cut will always be flat, and will cut all the way across the button. So, if I specify that the flat cut is on the "bottom" of the button, it should cut the bottom of the button flush, relative to the rest of the button. If I specify "top", it will cut the top, and so on. It should still use the thickness variable to keep the button at a fixed thickness, even when those cuts are applied, which is important.

[Assistant]
button_V1.scad:
```
/* [Settings] */
// diameter of the button
OD = 15;
// how many sewing holes you want, set to 0 for none
numHoles = 4;
// thickness of button
thickness = 3;
// how far the holes are spaced from the center
holerRimOD = 7;
// size of sewing holes
holeOD = 2;
// size of outer fillet
rimRadius = 2;
// type of button cut
flatStat = "bottom"; // [top,bottom,both,none]

// calculations
holeOr = holeOD/2;
Or = OD/2;
holeRimOr = holerRimOD/2;

module button() {
	$fn = 30;
	difference() {
		union() {
			// fillet rims
			rotate_extrude() {
				translate([Or,0])
				circle(rimRadius,true);
			}
			// center cylinder
			cylinder(h = thickness, r = Or, center = true);
		}

		union() {
			// cutout hotes
			for (i = [0:numHoles]) {
				rotate([0,0,i*360/numHoles]) {
					translate([holeRimOr,0,0]) {
						cylinder(h = thickness*1.1, r = holeOr, center = true);
					}
				}
			}

			if (flatStat == "top") {
				translate([0,0,(rimRadius + thickness)/2 - 0.01])
				cylinder(h = rimRadius, r = OD*1.5, center = true);
			} else if (flatStat == "bottom") {
				translate([0,0,-(rimRadius + thickness)/2 + 0.01])
				cylinder(h = rimRadius, r = OD*1.5, center = true);
			} else if (flatStat == "both") {
				translate([0,0,(rimRadius + thickness)/2 - 0.01])
				cylinder(h = rimRadius, r = OD*1.5, center = true);

				translate([0,0,-(rimRadius + thickness)/2 + 0.01])
				cylinder(h = rimRadius, r = OD*1.5, center = true);
			}
		}
	}
}

button();
```


[User]
I'm looking for a way to generate a wide variety of 3D printable castle designs using OpenSCAD. I'd like to be able to customize many aspects of the castle, including the main structure, towers, turrets, and even an optional island base.

For the main structure, I want to control the number of sides (or have it randomized), height, width, and roof type (pointed, flat, flat+point, or dome, or randomized). Towers should have similar customization options, including height, width, number of sides, and roof type. Turrets should also have customizable roof types and number of sides. I'd like the ability to specify a ratio for the width and height of child turrets relative to their parent turrets, allowing for a wide range of shapes from narrow to wide.

A key feature I'm looking for is the ability to add multiple levels of turrets recursively. I want to specify the number of turrets attached to each turret (children) and the number of generations (recursions). There should also be an option for symmetry in the first level and subsequent levels, allowing for more regular or irregular designs.

The island should have customizable height and width, with some random variation in its shape.

For details, I'd like to have options to generate windows, roof decorations (like rings and archer slots), corbels beneath turrets, and a brick pattern. The windows should have customizable coverage, height, and width. The bricks should have customizable height, horizontal width, and spacing.

I'd like to be able to generate the castle with or without details, as the detailed version can be quite computationally intensive. There should also be an option to generate parts of the castle separately (island only, structures only, roofs only), which might be useful for multi-material printing or rendering.

Here is a list of the parameters that I would like to be able to adjust:

*   `generate_details`: Whether to generate details like windows and decorations.
*   `random_seed`: A seed for randomizing various aspects of the castle.
*   `island`: Whether to generate an island base.
*   `children`: The number of turrets attached to each turret.
*   `max_recursion`: The number of generations of turrets.
*   `first_level_symmetry`: Whether to have symmetry in the first level of turrets.
*   `next_levels_symmetry`: Whether to have symmetry in subsequent levels of turrets.
*   `roof_pointed_ratio`: The ratio for pointed roof height to width.
*   `building_number_of_sides`: The number of sides for the main building.
*   `building_height`: The height of the main building.
*   `building_width`: The width of the main building.
*   `building_roof_type`: The roof type for the main building.
*   `towers_height`: The height of the towers.
*   `towers_width`: The width of the towers.
*   `towers_number_of_sides`: The number of sides for the towers.
*   `towers_roof_type`: The roof type for the towers.
*   `turrets_roof_type`: The roof type for the turrets.
*   `turrets_number_of_sides`: The number of sides for the turrets.
*   `children_width_ratio`: The ratio of children turrets' width to their parent.
*   `children_height_ratio`: The ratio of children turrets' height to their parent.
*   `island_random_seed`: A seed for randomizing the island shape.
*   `island_height`: The height of the island.
*   `island_width`: The width of the island.
*   `generate_windows`: Whether to generate windows.
*   `generate_roof_decorations`: Whether to generate roof decorations.
*   `generate_corbels`: Whether to generate corbels.
*   `generate_bricks`: Whether to generate a brick pattern.
*   `window_coverage`: The density of windows.
*   `floor_height`: The height of each floor, affecting window and roof placement.
*   `window_width_base`: The base width of windows.
*   `brick_height`: The height of the bricks.
*   `brick_horz`: The horizontal width of the bricks.
*   `brick_space`: The width of the mortar between bricks.
*   `brick_space_depth`: The depth of the spacing between bricks.
*   `what_to_generate`: Controls which parts of the castle to generate (everything, island only, structures only, roofs only).

The code should be written in OpenSCAD and should not make use of any external libraries. Could you help me create this parametric castle generator?

[Assistant]
CastleGenerator_v1.scad:
```
/*----------------------------------------------------------------------------*/
/*  Fantastic Castle Generator v1                                             */
/*  Created by Ziv Botzer                                                     */
/*  zivbot@gmail.com                                                          */
/*  7.6.2016                                                                  */
/*  License: Creative Commons - Attribution - Non-Commercial                  */
/*----------------------------------------------------------------------------*/

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

// Master switch for details (windows, decorations...) - keep it off while you calibrate
generate_details = "No"; // [Yes, No]
// Castle variations - change it for a completely different result
random_seed = 23; // [1:1:400]
// Would you like an island, Sir?
island = "Yes"; // [Yes, No]
// No. of turrets attached to each turret
children = 2;  // [0:1:5]
// Generations (recursions) !!Exponential complexity!!
max_recursion = 2;  // [0:1:5]
// Symmetry for first level !Double complexity!
first_level_symmetry = "No"; // [Yes, No]
// Symmetry for all other levels !Double complexity!
next_levels_symmetry = "No"; // [Yes, No]
// Pointed roofs - tall or low?
roof_pointed_ratio = 1.8; // [0.4:0.2:4]

/* [Main structure ] */
// How many sides/facets for main building
building_number_of_sides = 0; // [4,6,8,12,60,0:Random]
// Height (without roof) (0 = Random)
building_height = 0;  // [0:1:100]
// Width  (0 = Random)
building_width = 0; // [0:1:100]
// Main building roof type
building_roof_type = 0; // [1:Pointed,2:Flat,3:Flat+Point,4:Dome,0:Random]

/* [Towers and Turrets] */
// Height (without roof)  (0 = Random)
towers_height = 0;  // [0:1:100]
// Width  (0 = Random)
towers_width = 0; // [0:1:100]
// How many sides/facets for towers
towers_number_of_sides = 0; // [4,6,8,12,60,0:Random]
// Towers roof types
towers_roof_type = 0; // [1:Pointed,2:Flat,3:Flat+Point,4:Dome,0:Random]

// Turrets roof types
turrets_roof_type = 0; // [1:Pointed,2:Flat,3:Flat+Point,4:Dome,0:Random]
// Turrets number of sides
turrets_number_of_sides = 0; // [4,6,8,12,60,0:Random]

// Ratio of children turrets to parent (0.1 - very narrow, 0.9 - very wide)
children_width_ratio = 0.7; // [0.1:0.1:0.9]
// Ratio of children turrets to parent (0.1 - very narrow, 0.9 - very wide)
children_height_ratio = 0.7; // [0.1:0.1:0.9]

/* [ Island ] */
// Variations of the island
island_random_seed = 7; // [1:1:200]
// Height
island_height = 25;  // [5:1:100]
// Width
island_width = 80; // [40:1:200]

/* [Decorations] */
//
generate_windows = "Yes"; // [Yes, No]
// Rings, archers slots, etc.
generate_roof_decorations = "Yes"; // [Yes, No]
// Generate corbel decoration beneath turrets?
generate_corbels = "Yes"; // [Yes, No]
// (Extremely geometry intensive!! and not very effective when printing small)
generate_bricks = "No"; // [Yes, No]

/* [Decorations: Windows] */
// How many windows to scatter (1 = everywhere)
window_coverage = 0.3; // [0.1:0.1:1]
// Height of each floor (affects windows and roofs, as well as minimal turret width)
floor_height = 5; // [1:0.5:20]
// Width of windows
window_width_base = 2.5; // [1:0.5:10]

/* [Decorations: Bricks] */
// Height of the bricks
brick_height = 1.5; // [1:0.5:3]
// Width of the bricks
brick_horz = 12; // [1:0.5:20]
// Width of mortar between the bricks
brick_space = 0.2; // [0.2:0.1:2]
// Depth of spacing between the bricks !this is an overhang - keep it tiny!
brick_space_depth = 0.1; // [0.1:0.1:1]

/* [Partial Generation] */
// Use to separate STLs for colors / materials (didn't test this for printing)
what_to_generate = 1; // [1:Everything,2:Island only,3:Structures only,4:Roofs only]

/* [Hidden] */

// Flag poles are more likely to mess up the print than look nice, so they're permanently off
generate_flag_poles = "No"; // [Yes, No]

// More constants
sides_predef=[4,6,8,12,60]; // possible number of sides per polygon
$fn = 10; // Basic resolution (hardly affects anything, mostly controlled locally)
overlap = 0.01; // used to make sure union/difference give nice results

roof_flat_extend_ratio = 0.5; // [0.1:0.1:1] // Flat roofs - how wide?
pointed_roof_cone_base_ratio = 0.04; // ratio between inverted base cone of roof, and the cone of roof
roof_deco_spacing_height = 0.25*floor_height; // distance between ring decorations on the roofs

max_roof_types = 4;

// collection of booleans for easier handling
gen_roof_decorations = (generate_roof_decorations == "Yes") && (generate_details == "Yes");
gen_windows = (generate_windows == "Yes") && (generate_details == "Yes");
gen_flag_poles = (generate_flag_poles == "Yes") && (generate_details == "Yes");
gen_corbel_decoration = (generate_corbels == "Yes") && (generate_details == "Yes");
gen_bricks = (generate_bricks == "Yes") && (generate_details == "Yes");

gen_structure = ((what_to_generate == 1) || (what_to_generate == 3));
gen_roofs = ((what_to_generate == 1) || (what_to_generate == 4));
gen_island = (island == "Yes") && ((what_to_generate==1) || (what_to_generate == 2));

// uncomment to make every rebuild really random:
//random_seed = floor(rands(0,1000,1)[0]);
echo(random_seed);

//********************** MAIN *****************************

union() {
    //**** ISLAND *****
    if (gen_island)
        generate_island(island_width, island_height, island_random_seed+random_seed);

    //**** CASTLE *****
    translate([0,0,((gen_island)?overlap:0) ])
        generate_castle(random_seed);
}

/**************************************************************
   Generate a castle.
   No parameters passed except random-seed, it uses the global parameters
***************************************************************/

module generate_castle(rseed) {

    // Place the main building in the middle
    building_width_ = decide_dimension ( building_width, floor_height,
                                            floor_height*3, 60, rseed);
    building_height_ = decide_dimension ( building_height,
                                            floor_height*2,
                                            floor_height*5,
                                            60, rseed) + (gen_island?island_height:0);

    turret_round ( building_width_, building_height_, false,
        decide_number_of_sides (building_number_of_sides, rseed),
        roof_pointed_ratio/2, decide_roof_type ( building_roof_type, rseed ) );

    // Place #children towers around main structure, with recursive children turrets
    if(children>0)
    for (i = [1:children]) {
        r1 = rands(0,360,1,rseed+i)[0];
        v1 = building_width_*1.1/2;

        towers_width_ = decide_dimension ( towers_width, floor_height,
                                            floor_height*3, 30, rseed+i);
        towers_height_ = decide_dimension ( towers_height,
                            floor_height*2,
                            0.4*building_height_,
                            1.5*building_height_, rseed+i)
                            + rands(0,15,1,rseed+i)[0];

        rotate([0,0, r1 ] )
         translate([0,v1, 0 ])
         turret_recursive(1,max_recursion, towers_width_, towers_height_, true, rseed+i*10 );

        if (first_level_symmetry=="Yes") {
            rotate([0,0, 360-r1 ] )
             translate([0,v1, 0 ])
             turret_recursive(1,max_recursion, towers_width_, towers_height_, true, rseed+i*14 );
        }
    }

}

/**************************************************************
   Helper functions
***************************************************************/
function decide_roof_type( t, rseed ) = (t==0)? floor(rands(0,max_roof_types-0.01,1,rseed)[0]+1) : t;

function decide_number_of_sides ( s, rseed ) = (s==0) ?
        sides_predef[ floor( rands(0,len(sides_predef)-0.01,1,rseed)[0] ) ] : s;

// the correction angle makes sure all polygons (no matter how many sides) align on one side
function correction_angle ( sides ) = (sides==4)?45: (sides==5)?18: (sides==8)?22.5: (sides==12)?15:0;

function decide_dimension ( dim, minimum, random_min, random_max, rseed ) =
     (dim == 0)? round(rands(random_min, random_max, 1, rseed)[0]) : (
     (dim >= minimum )? dim : minimum );

/**************************************************************
   Generate turrets with recursive children
***************************************************************/
module turret_recursive ( current_depth, max_recursion, w, h, main_tower, rseed ) {

    if (current_depth <= max_recursion)
    union() {

        // how many sides if this were a main tower
        main_tower_number_of_sides = decide_number_of_sides (towers_number_of_sides, rseed+current_depth );

        // decide how many sides for this tower/turret
        sides = (main_tower)? main_tower_number_of_sides :
            decide_number_of_sides (turrets_number_of_sides, rseed+current_depth );

        // decide roof type
        main_tower_roof_type = decide_roof_type (towers_roof_type, rseed+current_depth);

        this_roof_type = (main_tower)? main_tower_roof_type :
            decide_roof_type (turrets_roof_type, rseed+current_depth );

        // GENERATE TOWER/TURRET
        turret_round(w, h, !main_tower, sides, roof_pointed_ratio, this_roof_type);

        inradius = w * cos( 180 / sides );

        for (i = [1:children]) {
            r1 = rands(-200,200,1,rseed + i*10 + current_depth*100)[0];
            v1 = inradius*0.6;  // y (offset from center) translation of children

            // calc width of children
            cw = w*children_width_ratio*children_width_ratio;
            t_width = (cw > 0.8*floor_height)?cw:0.8*floor_height; // set a minimum to turrets width

            t_height = h*children_height_ratio*children_height_ratio;

            z_transform = rands(2*t_width,1.1*h,1,rseed + i + current_depth)[0];

            rotate([0,0, r1 ] )
            translate([0,v1, z_transform])
            turret_recursive(current_depth+1, max_recursion, t_width, t_height, false, rseed*i );

            if (next_levels_symmetry=="Yes")
                rotate([0,0, 360-r1 ] )
                translate([0,v1, z_transform])
                turret_recursive(current_depth+1, max_recursion, t_width, t_height, false, rseed*i+10 );
        }
    }
}

/**************************************************************
   Generate a complete turret
***************************************************************/
module turret_round ( w, h, generate_bottom, sides, roof_ratio, roof_type_ ) {

    body_height = h;
    roof_height = w*roof_ratio;
    base_height = w*2;

    rotate([0,0,(sides==4)?45:0])
    union() {

        // roof
        translate([0,0,body_height-overlap])
           turret_roof (w, roof_height, sides, roof_type_);

        // body of turret
        if(gen_structure)
        turret_body(w, body_height, sides);

        // under part
        if(gen_structure)
        translate([0,0,overlap])
        if (generate_bottom) {
            color("Gainsboro")
             turret_base(w, base_height, sides);
        }

    }
}

/**************************************************************
   Generate turret ROOF according to type
***************************************************************/
module turret_roof ( w, h, sides, rtype ) {

    union() {

        if (rtype == 1) {
            // pointed roof
            if (gen_roofs)
                roof_pointed ( w, h, sides );
        }
        else if (rtype == 2) {
            // flat roof
            if(gen_structure)
                roof_flat (w, 1.3*floor_height, sides);
        }
        else if (rtype == 3) {
            // flat and point
            if(gen_structure) {
                roof_flat (w, 1.1*floor_height, sides);
                translate([0,0,0.5*floor_height-overlap])
                    turret_body ( 0.7*w, floor_height, sides );
            }
            if (gen_roofs)
                translate([0,0,0.5*floor_height + floor_height-2*overlap])
                roof_pointed ( 0.7*w, 0.8*h, sides );
        }
        else if (rtype == 4) {
            // Dome
            if(gen_structure) {
                roof_flat (w, 1.1*floor_height, sides);
                translate([0,0,0.5*floor_height-overlap])
                    turret_body ( 0.7*w, floor_height, sides );
            }
            if (gen_roofs)
                translate([0,0,0.5*floor_height + floor_height-2*overlap])
                roof_dome ( 0.7*w, 0.8*h, sides );
        }

    }
}

/**************************************************************
   Generate FLAT ROOF with decorations
***************************************************************/
module roof_flat ( w, h, sides ) {

    roof_bottom_part_height = roof_flat_extend_ratio*floor_height;
    roof_top_part_height = h-roof_bottom_part_height;

    roof_top_width = w+roof_flat_extend_ratio*floor_height;
    roof_overhang = (roof_top_width - w);

    roof_scale = roof_top_width / w;

    shortest_radius = w * cos( 180 / sides ) / 2;
        // ^-- for polygons with low number of sides, gives the constrained radius

    circular_n = (sides <= 12)?sides:12;

    correct = correction_angle(sides);

    color("LightGrey")
    union() {
        translate([0,0,roof_bottom_part_height-overlap])
        difference()
        {
            // top part

            linear_extrude(roof_top_part_height)
            circle(d=roof_top_width,$fn=sides);

            // emboss center
            translate([0,0,0.3*roof_top_part_height])
            linear_extrude(roof_top_part_height)
            circle(d=w,$fn=sides);

            // cut archers slots
            //if (gen_roof_decorations)
            translate([0,0,0.6*roof_top_part_height])
            pattern_around_polygon (roof_top_width, roof_top_part_height, sides,
                               element_max_width=floor_height,
                               element_height=roof_top_part_height,
                               shape_type=1, shape_width_factor=0.4,
                               shape_height_factor=1.3, extrude_length=5,
                               distribution_ratio=1 );

        }

        // base part with corbels
        difference() {
            linear_extrude(roof_bottom_part_height, scale=roof_scale)
             circle(d=w*1.0,$fn=sides);

            if (gen_corbel_decoration)
            translate([0,0,-0.1*roof_bottom_part_height])
            pattern_around_polygon (roof_top_width, roof_bottom_part_height, sides,
                               element_max_width=0.7*floor_height, element_height=roof_bottom_part_height,
                               shape_type=2, shape_width_factor=0.6,
                                shape_height_factor=1, extrude_length=roof_overhang,
                                distribution_ratio=1 );

        }
    }
}

/**************************************************************
   Generate POINTED ROOF with decorations
***************************************************************/
module roof_pointed ( w, h, sides ) {

    roof_inverted_cone_height = h*pointed_roof_cone_base_ratio;
    roof_cone_height = h - roof_inverted_cone_height;

    roof_cone_base_width = w + 2*roof_inverted_cone_height;

    roof_tip_scale = (gen_flag_poles)?0.1:0.05;

    roof_cone_delta = roof_cone_base_width - roof_cone_base_width*roof_tip_scale;

    shortest_radius = w * cos( 180 / sides ) / 2;
        // ^-- for polygons with low number of sides, gives the constrained radius

    union() {
        // roof cone
        color("OrangeRed")
        translate([0,0,roof_inverted_cone_height-overlap])
          linear_extrude(roof_cone_height, scale=roof_tip_scale)
          circle(d = roof_cone_base_width, $fn=sides);

        // up-side-down cone below roof cone
        color("OrangeRed")
        linear_extrude(roof_inverted_cone_height, scale=roof_cone_base_width/w)
          circle(d = w, $fn=sides);

        // generate decos
       color("OrangeRed")
        if (gen_roof_decorations) {

            translate([0,0,roof_inverted_cone_height]) {

                // small roofs around base of roof
                cube_height = 0.1*roof_cone_height;
                cube_position_ratio = 0.05;
                translate([0,0,overlap])
                intersection() {
                    pattern_around_polygon ( roof_cone_base_width,
                                    cube_height, sides,
                                   element_max_width=floor_height,
                                   element_height=cube_height,
                                   shape_type=2,
                                   shape_width_factor=0.5,
                                   shape_height_factor=1,
                                   extrude_length=0.2*roof_cone_base_width,
                                   distribution_ratio=1 );

                    translate([0,0,-overlap])
                    linear_extrude(cube_height*2)
                    circle(d=roof_cone_base_width-overlap, $fn=sides);
                }

                // round horz rails along roof
                rail_spacing = 2*roof_deco_spacing_height;
                how_many_rows =  floor( roof_cone_height / rail_spacing);
                if (how_many_rows>1) {
                    rail_spacing2 = roof_cone_height / how_many_rows;
                    rail_height = 0.1*rail_spacing2;

                    color("Maroon")
                    for (i = [1:how_many_rows-1]) {
                        translate([0,0,i*rail_spacing2])
                            linear_extrude(rail_height)
                            circle(d = roof_cone_base_width-i*(roof_cone_delta/how_many_rows), $fn=sides);
                    }
                }

                // flag poles
                if (gen_flag_poles) {
                    translate([0,0,0.7*roof_cone_height]) {
                        color("DarkGoldenrod")
                        linear_extrude(0.3*roof_cone_height + 1.5*floor_height, scale=0.5)
                        circle(d=0.8, $fn=20);

                        /*
                        // actual flags are not printable without cursed supports...
                        color("White")
                        translate([0,-0.05,5])
                        cube([4,0.1,0.7]);
                        */
                    }
                }

            }
        }
    }

}

/**************************************************************
   Generate DOME ROOF with decorations
***************************************************************/
module roof_dome ( w, h, sides ) {

    shortest_radius = w * cos( 180 / sides ) / 2;
        // ^-- for polygons with low number of sides, gives the constrained radius
    dome_diameter = shortest_radius*2;

    union() {
        // roof cone
        color("OrangeRed")
        intersection() {
            sphere(d = dome_diameter, $fn = 60);

            translate([0,0, (dome_diameter/2)-overlap])
            cube(dome_diameter, center=true);
        }

        if (gen_roof_decorations)
        color("DarkGoldenrod")
        translate([0,0,0.01*dome_diameter])
        intersection() {
            sphere(d = dome_diameter-overlap, $fn = 60);

            for (i=[0:1:360/8])
            rotate([0,0,i*360/8])
            translate([0,0, (dome_diameter/2)-overlap])
            cube([dome_diameter, 0.05*dome_diameter,dome_diameter], center=true);
        }
    }

}

/**************************************************************
   Generate turret BODY with decorations
***************************************************************/
module turret_body ( w, h, sides ) {

    difference () {
        color("LightGrey")
        linear_extrude(h, convexity = 2) circle (d=w, $fn=sides);

        // _____Generate windows______
        color([0.3,0.3,0.3])
        if (gen_windows)
            pattern_around_polygon (w, h, sides, window_width_base, floor_height,
                                2, 0.5, 0.7, 1.5, window_coverage );

        // _____Generate brick pattern______
        color("DarkGray")
        if (gen_bricks) {

            how_many_rows =  floor( (h-brick_space) / (brick_height+brick_space));
            brick_height2 = (h-((how_many_rows-1)*brick_space)) / how_many_rows;

            how_many_cols = floor(w*3.1416/brick_horz);
            bricks_angle = 360/how_many_cols;

            // create the horizontal slots between the rows of bricks
            for (i = [1: 1:how_many_rows-1] ) {
                translate([0,0,i*(brick_height2+brick_space)-brick_space]) {
                        linear_extrude(brick_space,false) {
                        difference () {
                            circle(d = w*1.5, $fn=sides);
                            circle(d = w-brick_space_depth, $fn=sides);
                        }
                    }
                }

            }

            // create the vertical slots between the columns of bricks + random rotation
            difference () {
                union()
                for(vi = [0:how_many_rows-1]) {
                    rand_rotate = rands(0,1,1)[0];
                    translate([0,0,brick_height2/2+vi*(brick_height2+brick_space)])
                    for (i = [0: 1:(how_many_cols/2)-1] ) {
                        rotate([0,0,(i+rand_rotate)*bricks_angle])
                        color ("DimGray")
                        cube([brick_space, 1.1*w, brick_height2+0.2], center=true);
                    }
                }

                translate([0,0,-0.5])
                linear_extrude(h+1) circle (d=w-brick_space_depth*2, $fn=sides);
            }
        }

    }

}

/**************************************************************
   Generate turret BASE with decorations
***************************************************************/
module turret_base ( w, h, sides ) {

    circular_n = (sides <= 6)?sides:6;
    shortest_radius = w * cos( 180 / sides ) / 2;

    correct = (sides==4)?45:(sides==5)?18:(sides==8)?22.5:(sides==12)?15:0;

    color("Gainsboro")
    rotate([0,0,(sides==4)?-45:0]) // fix square alignment
    union () {
        // inverted cone
        translate([0,-w/2,0])
        rotate([180,0,0])
        linear_extrude(height = h, scale=0.1, convexity = 3)
        translate([0, -w/2, 0])
        rotate([0,0,(sides==4)?45:0]) // fix square alignment
         difference() {

             circle(d = w, $fn=sides);

             if (gen_corbel_decoration) {
                rotate([0,0,correct])
                for (i = [0:circular_n-1]){
                    d_ = 0.5*3.1416*w/circular_n;
                    rotate([0,0, i*(360/circular_n) ])
                    translate([0,1.1*shortest_radius,0])
                    circle(d=d_, $fn=sides*4);
                }
            }
         }

        if (gen_corbel_decoration) {
            translate([0,-w/4,0])
            rotate([180,0,0])
             linear_extrude(height = h/2, scale=0.1, convexity = 3)
             translate([0, -w/4, 0])
             rotate([0,0,(sides==4)?45:0])
             circle(d = w, $fn=sides);
         }

   }
}

/**************************************************************
   Generate rectangle with pointed 45deg tip (for windows and other decorations)
***************************************************************/
module special_rectangle (w, h) {
    // if h is too small its ignored

    offs = sqrt(2*pow(w/2,2));

    hull() {
        translate([0,offs/2,0])
        rotate([0,0,45])
        square(w/2,center=true);

        difference() {
            translate([0,offs,0])
            circle(d=w, $fn=20);

            // substract for half circle
            translate([0,offs+w/2,0])
            square([w*1.1,w],center=true);
        }

        if (h > offs)
        translate([0,offs+(h-offs)/2,0])
        square([w,h-offs],center=true);
    }
}

/**************************************************************
   Generate an island for anointed knights such as yourself
***************************************************************/
module generate_island ( w, h, iseed ) {
    color("Brown")
    scale([w/10,w/10,h/2])
    difference() {

        linear_extrude(2,scale=0.5)
        circle(d=10,$fn=10);

        n = floor( rands(0,6,1,iseed)[0]);

        for(i=[0:1:n])
        rotate([0,0,i*(360/n)])
        rotate([11,rands(-4,4,1,iseed+i)[0],0])
        translate([0,0,7])
        cube([10,10,10],center=true);

        for(i=[0:1:n])
        rotate([0,0,i*(360/n)])
        rotate([35, rands(-4,4,1,iseed+i*10)[0] ,0])
        translate([0,0,7.8])
        cube([10,10,10],center=true);

        for(i=[0:1:n])
        rotate([0,0,(i + rands(-0.5,0.5,1,iseed+i*100)[0] )*(360/n) ])
        translate([10.5,0,-1])
        rotate([0,0,30])
        linear_extrude(5)
        circle(d=14,$fn=5);
    }
}

/**************************************************************
   module for distributing elements along floors, sides and per each facet
***************************************************************/
module pattern_around_polygon (w, h, sides, element_max_width, element_height,
                                shape_type, shape_width_factor, shape_height_factor, extrude_length,
                                distribution_ratio) {
    // shape_type 1 = rectangle
    // shape_type 2 = rectangle with sharp tip

    vertical_n = floor(h/element_height); // how many rows of elements

    // treat circular as (diameter/element_width) sided
    circular_n = (sides > 12)? floor(w*3.1415/(element_max_width)): sides;

    ww = w*sin(180/circular_n); // facet width calculated per circular_n
    element_width = (ww<element_max_width)?ww:element_max_width; // limit window width

    // for circular only one element per facet
    elements_per_facet = (sides <= 12) ?
                floor (  w*sin(180/sides) / element_width ) : 1;

    inradius = w * cos( 180 / sides ); // inradius of the polygon shape

    delta_per_facet = 0.5*(elements_per_facet-1) * element_width;

    rotate([0,0,correction_angle(sides)])
    for (a=[1:1:vertical_n]) // per each floor
    for (b=[0:1:circular_n]) {   // per each side
        for (c=[0:1:elements_per_facet-1]) // per each facet with multiple windows
        if (rands(0,1,1)[0] <= distribution_ratio)
        rotate([0,0,b*360/circular_n])
        translate([-delta_per_facet + c*element_width,0,0])
        translate([0,inradius/2,(a-0.5)*(h/vertical_n)]) {
            union() {
                rotate([90,0,0]) {
                    // **** Generate elements
                    w_width = element_width*shape_width_factor;
                    w_height = element_height*shape_height_factor;

                    if (shape_type == 1) {
                        // simple rectangle
                        rotate([0,0,180])
                        linear_extrude(extrude_length,center=true)
                        square([w_width,w_height],center=true);
                    }
                    else if (shape_type == 2) {
                        // standard window shape
                        f = 1.2; // scale to make tip less than 45deg
                        translate([0,(w_height/2)/f,0]) rotate([0,0,180])
                        linear_extrude(extrude_length,center=true)
                        scale([1,f,1])
                        special_rectangle(w_width,w_height/f);
                    }
                    // ****
                }
            }
        }
    }

}

// And they lived happily ever after...

```


[User]
I need to create a modified broom handle screw end cap, similar to the one described at the provided link, but with a few key changes and parametric options. Basically, I'm making a threaded cap to fit over the end of cut-down wooden broomsticks, and the thread orientation needs to be adjustable. I’m finding that the customizer on Thingiverse isn't playing nicely with the text function, so I'm hoping to get a working version with all of these parameters.

Here’s what I need in the parametric design:

*   **Overall Structure:** It should be a cap that includes a threaded section for screwing onto the broomstick and a thicker, block-like section that will sit on the end of the broom handle.
*   **Broom Handle Parameters:**
    *   `PostOD`: The outer diameter of the broomstick (e.g., 24mm).
    *   `PostLength`: The length of the broomstick that will be inserted into the cap (e.g., 25mm).
*   **Thread Parameters:**
    *   `PitchDia`: The small diameter of the threads (e.g., 15.5mm).
    *   `ScrewLength`: The length of the threaded section (e.g., 20mm).
    *   `ThreadFormOD`: The outer diameter of the thread form (e.g., 2.5mm).
    *   `ThreadPitch`: The pitch of the thread (e.g., 5mm).
    *   `ThreadRotation`: The rotational angle of the thread relative to the side of the block (e.g., 0 degrees, but needs to be adjustable to angle the thread).
*   **Cap Parameters:**
    *   `WThick`: The wall thickness for all parts of the cap (e.g., 2.5mm).
*   **Identification Marking:**
    *   `ThreadID`: A text string to be printed on the top of the cap to identify the thread rotation (e.g. "1", "A", "Left", etc).

The design should include:
* A cylindrical hole that matches the broomstick `PostOD` and `PostLength` (with an additional `WThick` added in for clearance).
* A screw thread that matches the defined thread parameters, cut into the post.
* A block section at the top for the "cap" section.
* Chamfers on the bottom block to make it aesthetically pleasing and to make it easier to insert on to the stick.
* An ID marking on top that extrudes the text string `ThreadID`.

I want the OpenSCAD code to be well-commented for easy modification. The `Cyl_Thread` module will be reused. No libraries are needed for this simple part, just the standard OpenSCAD primitives.

[Assistant]
BroomStick90.scad:
```
// Broom Handle Screw End Cap
// Modification of Broom Handle Screw End Plug by Ed Nisley KE4ZNU March 2013
//PI
PI = 3.14159265358979;
//Print Wall Thickness
WThick=2.5;
//Broom Handle Diameter
PostOD = 24;
//Length of Hole for Broom Handle
PostLength = 25.0;
//Thread small diameter
PitchDia = 15.5;
//Length of Screw
ScrewLength = 20.0;
//Thread Outer Diameter
ThreadFormOD = 2.5;
//Thread Pitch
ThreadPitch = 5.0;
//Rotation of thread relateve to leg (if mop head has to be in a particulate rotation)
ThreadRotation=0;
//Top ID marking (to identify thread rotations if printing multiple options at once)
ThreadID="1";
$fn=8*4;

module Cyl_Thread(pitch,length,pitchdia,cyl_radius,resolution=32) {

Cyl_Adjust = 1.25;                      // force overlap

    Turns = length/pitch;
    Slices = Turns*resolution;
    RotIncr = 1/resolution;
    PitchRad = pitchdia/2;
    ZIncr = length/Slices;
    helixangle = atan(pitch/(PI*pitchdia));
    cyl_len = Cyl_Adjust*(PI*pitchdia)/resolution;

    union() {
        for (i = [0:Slices-1]) {
            translate([PitchRad*cos(360*i/resolution),PitchRad*sin(360*i/resolution),i*ZIncr])
                rotate([90+helixangle,0,360*i/resolution])
                    cylinder(r=cyl_radius,h=cyl_len,center=true,$fn=12);
        }
    }
}

difference(){
    union() {
		//Thread post
        translate([0,0,-PostOD-WThick*2])cylinder(r=PitchDia/2,h=ScrewLength+PostOD+WThick*2);
		//Thread on post
        rotate([0,0,ThreadRotation])translate([0,0,0])
                Cyl_Thread(ThreadPitch,(ScrewLength - ThreadFormOD/2),PitchDia,ThreadFormOD/2);
		//Block and round sections of broom stick head
        translate([-PostOD/2-WThick,0,-PostOD-WThick*2])cube([PostOD+WThick*2,PostLength+WThick,PostOD/2+WThick]);
        translate([0,0,-PostOD/2-WThick])rotate([-90,0,0])cylinder(d=PostOD+WThick*2,h=PostLength+WThick);
    }
    union(){
		//Broom Stick Cut Out
        translate([0,WThick,-PostOD/2-WThick])rotate([-90,0,0])cylinder(d=PostOD,h=PostLength+WThick);
		//Chanfers for Bottom Block
        translate([PostOD/2+WThick,PostLength/2,-PostOD-WThick*2])
            rotate([0,45,0])
                cube([WThick*2,PostLength+WThick*4,WThick*2],center=true);
        translate([-PostOD/2-WThick,PostLength/2,-PostOD-WThick*2])
            rotate([0,45,0])
                cube([WThick*2,PostLength+WThick*4,WThick*2],center=true);
        translate([-PostOD/2-WThick,0,-PostLength/2])
            rotate([0,0,45])
                cube([WThick*2,WThick*2,PostLength*2],center=true);
        translate([PostOD/2+WThick,0,-PostLength/2])
            rotate([0,0,45])
                cube([WThick*2,WThick*2,PostLength*2],center=true);
		translate([-PitchDia,0,-PostOD-WThick*2])rotate([120,0,0])cube([PitchDia*2,PitchDia*2,PitchDia*2]);
		//Marking for top of screw
        translate([0,0,ScrewLength])
			linear_extrude(height=2,center=true){
				text(text=ThreadID,valign="center",halign="center",font="Arial Black",size=6.5);
			}
    }
}
```


[User]
Hi, I'm looking to create a customizable sign with a backplate and raised text, similar to what I saw on Thingiverse. The idea is that the user should be able to change the sign dimensions, the text itself, and some aspects of the font. I'd like it to work with multiple lines of text, too.

Specifically, I need a rectangular backplate with user-defined length, width, and height. The text should be raised off the surface of this backplate. The user should be able to set the text content (including newlines indicated by "\n"), the text height, the font size, and the spacing between lines of text. I want the user to be able to control the color of the text and the backplate independently, but you can default to gray for the backplate and white for the text. The font should be bolded and default to "Open Sans" but it is not necessary to make this configurable as a parameter. The text should be centered on the backplate.

I'd like the OpenSCAD code to be parametric, so all these things can be changed easily through the customizer. Also, the code must use the `split` function as described in this post: http://www.thingiverse.com/thing:1237203. I am requesting the function to be included in the code. I don't need to use a library for this.

[Assistant]
Sign_with_backplate.scad:
```
// *************************
// Customizable Sign Creator
// By BaranCODE
// *************************

// in mm
plate_length = 150;
// in mm
plate_width = 65;
// in mm
plate_height = 10;
// in mm
text_height = 5;
// use \n to add a new line
text_content = "Hello,\nWorld!";
font_size = 20;
// in mm (if you have multiple lines)
line_separation = 30;

color("gray") cube([plate_length, plate_width, plate_height], true);

contents = split(text_content, "\n");
color("white")
translate([0, (len(contents)-1)*line_separation/2, 0])
for (i = [0 : len(contents)-1]){
    translate([0, -i*line_separation, plate_height/2])
    linear_extrude(height = text_height, center = false)
    text(contents[i], font_size,
        "Open Sans:style=Bold",
        halign="center", valign="center");
}

// From OpenSCAD Library by roipoussiere
// http://www.thingiverse.com/thing:1237203
function split(str, sep=" ", i=0, word="", v=[]) =
	i == len(str) ? concat(v, word) :
	str[i] == sep ? split(str, sep, i+1, "", concat(v, word)) :
	split(str, sep, i+1, str(word, str[i]), v);
```


[User]
Hey, I'm looking to design a parametric Yo-kai medal, specifically one that's compatible with the DX Yo-kai Watch Type Zero. I've got some existing code that outlines a pretty good starting point, but I need it to be fully customizable, allowing users to change the character and code.

The medal is basically a cylinder with a few different heights: a base height, a track height, and a total height. It has some protruding code bars and some text that I'm using to denote the character. I'd like to be able to change the text and the code bars, as well as the diameter.

Here's a more detailed breakdown of the components and how I'd like them to be parametric:

*   **Base:** The main cylindrical shape of the medal. Its diameter and the three height levels need to be configurable.
*   **Code Bars:** These are a series of raised rectangles on the face of the medal that represent a code. The number of code bars will vary based on the code. I need to be able to specify each row of code via a string of "1"s and "0"s (like I have in the attached example).
*   **Character Text:** The current design has "YOU" and "MONEY" text extruded from the side of the medal, but I would like to be able to input a string for these, and it would be great if the text scaled to fit the side of the medal.
*   **Side Details:** The side of the medal has four small, rounded cubes for visual detail and a cutaway section to keep it from being a full cylinder. I want all of this to remain the same relative to the medal dimensions.

I'd like the design to be generated using OpenSCAD.  I do not have any additional libraries for this project, so please don't use any.

Could you create the necessary parametric OpenSCAD files for me?

[Assistant]
classical-yo-kai-medal.scad:
```

// The 1st row of code
code1 = "1111";
// The 2nd row of code
code2 = "1010";
// The 3rd row of code
code3 = "0001";
// The 4th row of code
code4 = "0101";

module text_money(h) {
    scale([22/300.0,22/300.0,1]) {
        union() {
            linear_extrude(height=h) {
                polygon(
                    points = [
                        [0.000000,57.326160],
                        [24.748740,81.822360],
                        [50.760170,57.831230],
                        [45.709400,53.033010],
                        [24.748740,71.973370],
                        [3.535530,51.517780]
                    ],
                    paths = [
                        [ 0, 1, 2, 3, 4, 5 ]
                    ]
                );
           }
            linear_extrude(height=h) {
                polygon(
                    points = [
                        [10.859140,62.629460],
                        [40.406100,63.134530],
                        [40.658640,57.326160],
                        [10.859140,57.073620]
                    ],
                    paths = [
                        [ 0, 1, 2, 3 ]
                    ]
                );
           }
            linear_extrude(height=h) {
                polygon(
                    points = [
                        [20.203050,62.882000],
                        [30.557120,63.387070],
                        [30.557120,38.638330],
                        [42.931480,38.638330],
                        [42.173870,30.052040],
                        [30.304580,30.304580],
                        [31.062190,8.333760],
                        [20.203050,8.333760],
                        [19.445440,30.809650],
                        [8.586300,30.557110],
                        [8.586300,39.901020],
                        [19.697980,39.901020]
                    ],
                    paths = [
                        [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 ]
                    ]
                );
           }
            linear_extrude(height=h) {
                polygon(
                    points = [
                        [2.272840,27.274120],
                        [10.354060,27.274120],
                        [9.848990,11.364220],
                        [39.648490,11.616750],
                        [39.901030,25.758890],
                        [48.487320,26.011430],
                        [48.992400,0.000000],
                        [3.030460,0.252540]
                    ],
                    paths = [
                        [ 0, 1, 2, 3, 4, 5, 6, 7 ]
                    ]
                );
           }
            linear_extrude(height=h) {
                polygon(
                    points = [
                        [65.912450,85.357890],
                        [71.468290,71.215750],
                        [90.408650,71.468290],
                        [91.418810,64.144690],
                        [73.741140,63.892150],
                        [76.771590,53.285550],
                        [91.166270,53.790620],
                        [91.671340,47.224630],
                        [77.276670,47.224630],
                        [80.812200,36.618030],
                        [90.408650,37.123110],
                        [91.166270,29.041890],
                        [82.579970,29.294430],
                        [87.883270,8.081220],
                        [100.005100,8.081220],
                        [99.752560,0.505080],
                        [83.337590,0.252540],
                        [76.771590,17.172590],
                        [63.387070,0.757610],
                        [58.083770,7.071070],
                        [75.003830,25.253810],
                        [74.751290,29.546960],
                        [50.507630,29.041890],
                        [49.750010,35.860410],
                        [71.215760,36.112950],
                        [69.447990,46.719550],
                        [51.265240,46.214480],
                        [51.265240,52.527930],
                        [66.922610,52.780470],
                        [63.134540,65.407380],
                        [50.507630,64.902300],
                        [50.255090,72.478440],
                        [61.366770,71.720830],
                        [58.083770,84.852810]
                    ],
                    paths = [
                        [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33 ]
                    ]
                );
           }
            linear_extrude(height=h) {
                polygon(
                    points = [
                        [75.508900,86.620580],
                        [96.722110,86.115500],
                        [96.469570,78.034280],
                        [76.013980,77.781750]
                    ],
                    paths = [
                        [ 0, 1, 2, 3 ]
                    ]
                );
           }
        }
    }
}

module text_you(h) {
    scale([22/300.0,22/300.0,1]) {
        union() {
            linear_extrude(height=h) {
                polygon(
                    points = [
                        [0.000000,77.024130],
                        [80.054588,77.024130],
                        [81.064738,88.640880],
                        [92.934038,88.640880],
                        [92.934038,64.649760],
                        [0.000000,65.407370]
                    ],
                    paths = [
                        [ 0, 1, 2, 3, 4, 5 ]
                    ]
                );
           }
            linear_extrude(height=h) {
                polygon(
                    points = [
                        [35.102798,72.225900],
                        [36.618028,8.838830],
                        [48.487318,8.838830],
                        [47.224628,72.225900]
                    ],
                    paths = [
                        [ 0, 1, 2, 3 ]
                    ]
                );
           }
            linear_extrude(height=h) {
                polygon(
                    points = [
                        [62.376918,71.720830],
                        [63.134538,10.606600],
                        [74.246208,10.354060],
                        [74.246208,71.973370]
                    ],
                    paths = [
                        [ 0, 1, 2, 3 ]
                    ]
                );
           }
            linear_extrude(height=h) {
                polygon(
                    points = [
                        [12.121828,88.135810],
                        [13.384518,22.980970],
                        [41.416258,22.980970],
                        [41.416258,34.850260],
                        [22.980968,35.355340],
                        [22.475898,87.883270]
                    ],
                    paths = [
                        [ 0, 1, 2, 3, 4, 5 ]
                    ]
                );
           }
            linear_extrude(height=h) {
                polygon(
                    points = [
                        [43.689098,36.618030],
                        [52.780468,47.477170],
                        [92.681498,47.477170],
                        [92.934038,37.375640],
                        [65.154838,37.123100],
                        [54.800778,26.516500],
                        [44.446708,26.516500]
                    ],
                    paths = [
                        [ 0, 1, 2, 3, 4, 5, 6 ]
                    ]
                );
           }
            linear_extrude(height=h) {
                polygon(
                    points = [
                        [2.272843,15.152290],
                        [74.498748,14.899750],
                        [75.508898,1.010150],
                        [3.030458,1.262690]
                    ],
                    paths = [
                        [ 0, 1, 2, 3 ]
                    ]
                );
           }
            linear_extrude(height=h) {
                polygon(
                    points = [
                        [70.205598,29.294420],
                        [89.145958,29.294420],
                        [94.954338,25.001270],
                        [95.711948,15.404820],
                        [107.328708,9.596450],
                        [108.338858,0.000000],
                        [90.156118,0.252540],
                        [84.347738,7.576140],
                        [82.327428,20.455590],
                        [69.953068,20.708120]
                    ],
                    paths = [
                        [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 ]
                    ]
                );
           }
        }
    }
}

baseHeight = 2.0;
trackHeight = 2.5;
totalHeight = 4.0;

module track() {

    difference() {

        cylinder(d=43, h=trackHeight, $fn=100);
        translate([-15.7/2,-43/2+3,baseHeight]) {
            cube([15.7, 43 , 5]);
        }
    }
}

module side() {
    union() {
        difference() {

            cylinder(d=43, h=totalHeight, $fn=100);
            translate([-19/2,-43/2,-1]) {
                cube([19, 43 , totalHeight+6]);
            }
            translate([0,0,-1]) {
                difference() {
                    cylinder(d=39, h=totalHeight+2, $fn=100);
                    translate([-22/2,-43/2,-2]) {
                        cube([22, 43 , totalHeight+3]);
                    }
                }
            }
            translate([-9,-19,0]) {
                rotate([0,0,45]) {
                    cube([3,3,totalHeight*3], center=true);
                }
            }
            translate([9,-19,0]) {
                rotate([0,0,45]) {
                    cube([3,3,totalHeight*3], center=true);
                }
            }
            translate([-9,19,0]) {
                rotate([0,0,45]) {
                    cube([3,3,totalHeight*3], center=true);
                }
            }
            translate([9,19,0]) {
                rotate([0,0,45]) {
                    cube([3,3,totalHeight*3], center=true);
                }
            }
        }
        translate([-10+(-19)/2,4,0]) {
            cube([10,1.5,totalHeight]);
        }
        translate([-10+(-19)/2,-4-1,0]) {
            cube([10,1.5,totalHeight]);
        }
        translate([19/2,4,0]) {
            cube([10,1.5,totalHeight]);
        }
        translate([19/2,-4-1,0]) {
            cube([10,1.5,totalHeight]);
        }
        translate([-18.5,-3,trackHeight-0.01]) {
            text_you(0.5+0.01);
        }
        translate([11,-3,trackHeight-0.01]) {
            text_money(0.5+0.01);
        }

    }
}

module codebar1() {
    translate([0,-1,0]) {
        union() {
            cube([3.8,2,totalHeight-1]);
            translate([0,1,totalHeight-1]) {
                rotate([0,90,0]) {
                    cylinder(r=1, h=3.8, $fn=50);
                }
            }
        }
    }
}

module codebar(code) {
    union() {
        for(i=[0:3]) {
            if (code[i]=="1") {
                translate([-15.7/2+3.8*i+i*(15.7-3.8*4)/3.0,0,0]) {
                    codebar1();
                }
                if (i<3 && code[i+1]=="1") {
                    translate([-15.7/2+3.8*i+3.8/2+i*(15.7-3.8*4)/3.0,0,0]) {
                        codebar1();
                    }
                }
            }
        }
    }
}

module codebars(code1, code2, code3, code4) {
    codebar(code4);
    translate([0,6,0]) {
        codebar(code3);
    }
    translate([0,6*2,0]) {
        codebar(code2);
    }
    translate([0,6*3,0]) {
        codebar(code1);
    }
}

difference() {
    union() {
        track();
        side();
        codebars(str(code1),str(code2),str(code3),str(code4));
    }
    translate([0,0,-1.0]) {
        difference() {
            cylinder(d=38, h=0.5+1.0, $fn=100);
            translate([-5,21.5/2,-2]) {
                cube([10,43/2,2+2]);
            }
            translate([-5,(-43/2)-21.5/2,-2]) {
                cube([10,43/2,2+2]);
            }
        }
    }
    translate([-6.8/2,43/2-2.5-6.8,-1.0]) {
        cube([6.8,6.8,0.5+1.0]);
    }
    translate([-6.8/2,-43/2+2.5,-1.0]) {
        cube([6.8,6.8,0.5+1.0]);
    }
}

```


[User]
I'm looking to design a fully parametric golf ball in OpenSCAD, but I want to approach the dimple placement more scientifically than my current attempt. I want to be able to control parameters like the overall ball diameter, dimple diameter, the depth of the dimples as a percentage of the dimple diameter, and the number of dimples as a target value. I'd like the dimples to be distributed as evenly as possible across the sphere. The code I'm using now places them in bands, which isn't ideal. Also, I don't like the simple spherical dimple shape; could the dimples have a more rounded edge when they meet the surface of the ball (a toroidal or partial spherical shape perhaps)?

I'd also like to control how much of the ball surface the dimples cover as a percentage. Assume that dimples can overlap, but try to ensure that the average coverage is fairly close to my target percentage. This should also be configurable.

I want the code to be efficient. My existing code uses a lot of nested for loops, which I'm sure is not optimal. Is there a better way to do this kind of placement and subtraction?

I'd like to keep it all as a single `.scad` file if possible, and I'm not relying on any libraries. It needs to be pure CAD without any imported STL files.

[Assistant]
Parametric_Golf_ballv1.scad:
```
// Parametric Golf Ball V1
// http://www.thingiverse.com/thing:1618447
// Hacked by
// by infinigrove Squirrel Master 2016 (http://www.thingiverse.com/infinigrove)
//
Golf_Ball_Diameter = 42.7;

Dimple_Diameter = 3.5;

Golf_Ball_Detail = 20; //[10:180]

/* [Hidden] */

golfball_radius = Golf_Ball_Diameter/2;

dimple_radius = Dimple_Diameter/2;

difference() {
    //main sphere for golf ball
  sphere(r=golfball_radius, $fn=Golf_Ball_Detail);
    //top and bottom dimple
   translate([0,0,golfball_radius]) sphere(r=dimple_radius, $fn=Golf_Ball_Detail);
    translate([0,0,-golfball_radius]) sphere(r=dimple_radius, $fn=Golf_Ball_Detail);

    //top and bottom row of dimples
    for (t =[15,165]){
        for (s =[0:45:360]){
        dimple_xcord = golfball_radius * cos(s) * sin(t);

        dimple_ycord = golfball_radius * sin(s) * sin(t);

        dimple_zcord = golfball_radius * cos(t);

    translate([dimple_xcord,dimple_ycord,dimple_zcord]) sphere(r=dimple_radius, $fn=Golf_Ball_Detail);
        }
    }

    //next row of dimples
    for (t =[30,150]){
        for (s =[0:30:360]){
        dimple_xcord = golfball_radius * cos(s) * sin(t);

        dimple_ycord = golfball_radius * sin(s) * sin(t);

        dimple_zcord = golfball_radius * cos(t);

    translate([dimple_xcord,dimple_ycord,dimple_zcord]) sphere(r=dimple_radius, $fn=Golf_Ball_Detail);
        }
    }

    //next row of dimples
    for (t =[45,135]){
        for (s =[0:20:360]){
        dimple_xcord = golfball_radius * cos(s) * sin(t);

        dimple_ycord = golfball_radius * sin(s) * sin(t);

        dimple_zcord = golfball_radius * cos(t);

    translate([dimple_xcord,dimple_ycord,dimple_zcord]) sphere(r=dimple_radius, $fn=Golf_Ball_Detail);
        }
    }

    //next row of dimples
    for (t =[60,120]){
        for (s =[0:18:360]){
        dimple_xcord = golfball_radius * cos(s) * sin(t);

        dimple_ycord = golfball_radius * sin(s) * sin(t);

        dimple_zcord = golfball_radius * cos(t);

    translate([dimple_xcord,dimple_ycord,dimple_zcord]) sphere(r=dimple_radius, $fn=Golf_Ball_Detail);
        }
    }

    //next row of dimples
    for (t =[75,105]){
        for (s =[0:14:360]){
        dimple_xcord = golfball_radius * cos(s) * sin(t);

        dimple_ycord = golfball_radius * sin(s) * sin(t);

        dimple_zcord = golfball_radius * cos(t);

    translate([dimple_xcord,dimple_ycord,dimple_zcord]) sphere(r=dimple_radius, $fn=Golf_Ball_Detail);
        }
    }

    //middle row of dimples
    for (t =[90]){
        for (s =[0:12:360]){
        dimple_xcord = golfball_radius * cos(s) * sin(t);

        dimple_ycord = golfball_radius * sin(s) * sin(t);

        dimple_zcord = golfball_radius * cos(t);

    translate([dimple_xcord,dimple_ycord,dimple_zcord]) sphere(r=dimple_radius, $fn=Golf_Ball_Detail);
        }
    }

}

```


[User]
Hey, I'm looking to create a customizable ninja star generator in OpenSCAD. I'd like to be able to adjust a few key features.

First, I want to control the shape of the blades. I need an option for triangular blades, and another for an asymmetric triangle where one side is straight down. It'd be cool if the sharp end of the blade could be adjusted based on a ratio of the total radius. So if the ratio is 0.7, 70% of the distance from the center to the edge would be the "blade" and the rest would be a sort of mounting piece.

Next, I need to be able to change how many blades the star has, as well as the total diameter of the ninja star. And, of course, it needs to be able to handle a change in the overall thickness of the star.

For cutouts, I'd like there to be a sort of rounded cutout between each of the main blades. The roundness can be controlled by how many sides the circle used to create the cutout has and the distance from the center it is placed. There also needs to be a center cutout that I can specify the diameter of by ratio with the base of the blades, and the number of sides the polygon that defines the circle should have.

I think that's all the parameters, can you generate that for me? I don't have any existing code for the project, so it will need to all be written from scratch. I do not want to use any libraries.

[Assistant]
NinjaStar_V2.scad:
```
/* [Ninja Star Generator Settings] */
// shape of blades
pointShape = "triangle"; // [triangle,asymTriangle]
// number of blades
numPoints = 4;
// diameter of ninja star
starDiameter = 40;
// how much of the star is the sharp end
bladearmRatio = 0.7; // [0:0.1:1]
// thickness of ninja star
thickness = 1.5;

// sides of in between blade cutout shapes
polygonCutoutSides = 35; // [3,4,5,6,8,50]
// length of cutout shape
cutoutSideLength = 5;

// amount of center that is a hole, set to 0 for no center cutout
centercutoutDiameterRatio = 0.6; // [0:0.1:1]
// centercutout number of sides cutout
centerPolygonSidesCount = 3;

// Calculations //
starRadius = starDiameter/2;
// finding the blade length
bladeLength = starRadius*bladearmRatio;
// finding the complementary center length end
centerRadius = starRadius*(1 - bladearmRatio);
// totals points for calculating star cutouts
numPointsTotal = numPoints*2;
// finding the size of the center cutout
centercutoutRadius = centerRadius*centercutoutDiameterRatio;

module star2() {
	linear_extrude(thickness)
	difference() {
		union() {
			for (i = [0:numPoints]) {
				if (pointShape == "triangle") {
				// actual points
					rotate([0,0,i*360/numPoints]) {
						hull() {
							translate([0,centerRadius])
							polygon(points=[[-centerRadius,0]
								,[centerRadius,0]
								,[0,bladeLength]]);
							circle(centerRadius,true,$fn = 30);
						}
					}
				} else if (pointShape == "asymTriangle") {
					rotate([0,0,i*360/numPoints]) {
						hull() {
							translate([0,centerRadius])
							polygon(points=[[-centerRadius,0]
								,[0,0]
								,[0,bladeLength]]);
							difference() {
								circle(centerRadius,true,$fn = 30);
								translate([centerRadius,0]) {
									square(centerRadius*2,true);
								}
							}
						}
					}
				}
			}
		}

		union() {
			// in between points cutout
			for (i = [0:numPointsTotal]) {
				if (i % 2 == 1) {
					rotate([0,0,i*360/numPointsTotal]) {
						translate([0,centerRadius + cutoutSideLength*bladearmRatio])
						// rotate([0,0,0])
						circle(r = cutoutSideLength, center = true, $fn = polygonCutoutSides);
					}
				}
			}
			circle(r = centercutoutRadius, center = true, $fn = centerPolygonSidesCount);
		}
	}
}

star2();

```


[User]
Hey, I'm looking to create a set of customizable pipes for 3D printing, and I'd like to use OpenSCAD for this. I need a parametric design that lets me adjust things like the pipe length, diameter, wall thickness, and the length of the push-fit connectors at each end.

Specifically, I need to be able to generate a few different types of pipes: straight pipes, 90-degree angled pipes, and converter pipes that can connect different pipe diameters. I also want to work on half pipes and valves in the future.

For the straight pipes, I need to be able to specify the total length, the diameter of the pipe, the wall thickness, and the length of the push-fit connectors on each end (top and bottom).

The angled pipes should be a 90-degree elbow, and I'd want to be able to specify the same parameters as with the straight pipes.

The converter pipes should let me specify an upper and lower diameter, as well as the overall length. There should also be push-fit connectors as with the other pipe types.

I also want to be able to adjust some "advanced" settings, like the tolerance for the push fit connections (the gap between the inner pipe and the outer socket), and the wall thickness of the push fit portions. I also want to define a tiny overlap for the inner pipe to ensure a snug fit with the connectors.

Could you generate the OpenSCAD code for this? I'm not too concerned about libraries, just make it work with standard OpenSCAD functions. Thanks in advance!

[Assistant]
PerfectPipes1.3.scad:
```

pipeType = "straightPipe"; //[angledPipe:Right Angle Pipe, straightPipe:Straight Pipe, pipeConverter:Pipe Converter, pipeValve:Pipe Valve, halfPipe:Half Pipe]

/* [ Global ] */

//pipeProfile = "Round" //[]

totalPipeLength = 100;
pipeDiameter = 20;
pipeWallThickness = 8;

topPushFitLength = totalPipeLength*0.2;
bottomPushFitLength = totalPipeLength*0.2;

/* [ Angled Pipe ] */

angleDegrees = 90;

/* [ Converter Pipe ] */

upperDiameter = 50;
lowerDiameter = 20;

/* [ Advanced ] */

fitGapTolerance = 0.4;

topFitWallThickness = 4;
bottomFitWallThickness = 4;

overlap = 0.1;

//Responsible for generating the correct pipe based upon user selection
module thePlumber(){

//    lowerPushFit(pipeDiameter);

    if(pipeType == "straightPipe"){
        straightPipe();
    }
    if(pipeType == "angledPipe"){
        angledPipe();
    }
    if(pipeType == "pipeConverter"){
        pipeSizeConverter();
    }
    if(pipeType == "pipeValve"){
        pipeValve();
    }
    if(pipeType == "halfPipe"){
        halfPipe();
    }
}

module hollowCylinder(h, r1, r2, wallThickness, center){
        //Tests if center has been declaired, if it has not then default is false
        if(center == undef){
            center = false;
        }

        difference(){
            cylinder(h, r1, r2, center);
            translate([0,0,-0.1]){
                cylinder(h+2, r1-wallThickness, r2-wallThickness, center);
            }
        }
    }

module twoDHollowCircle(r1, r2, wallThickness){
    difference(){
        circle(r1, r2);
        circle(r1-wallThickness, r2-wallThickness);
    }
}

module lowerPushFit(diameter){

    if(diameter == undef){diameter = pipeDiameter;}

    hollowCylinder(
    bottomPushFitLength,
    diameter,
    diameter,
    pipeWallThickness-bottomFitWallThickness-fitGapTolerance/2,
    false);
}

module upperPushFit(diameter){

    if(diameter == undef){diameter = pipeDiameter;}

    hollowCylinder(topPushFitLength,
    diameter-bottomFitWallThickness-fitGapTolerance/2,
    diameter-bottomFitWallThickness-fitGapTolerance/2,
    pipeWallThickness-bottomFitWallThickness-fitGapTolerance/2,
    false
    );
}

module straightPipe(){

    inPipeLength = totalPipeLength-topPushFitLength-bottomPushFitLength;

    translate([0,0,inPipeLength/2]){
        upperPushFit(pipeDiameter);}

    hollowCylinder(inPipeLength,
    pipeDiameter, pipeDiameter, pipeWallThickness, true);

    translate([0, 0, -1*(inPipeLength/2)-bottomPushFitLength]){
        rotate([180,0,0]);
        lowerPushFit(pipeDiameter);}
}

module angledPipe(){
//    hollowCylinder(totalPipeLength*0.2, pipeDiameter, pipeDiameter, pipeWallThickness, false);
        rotate_extrude(angle=90, convexity=10)
        translate([20,0,0])
        twoDHollowCircle(pipeDiameter, pipeDiameter, pipeWallThickness);

}

module pipeSizeConverter(){
    hollowCylinder(totalPipeLength*0.6, lowerDiameter, upperDiameter, pipeWallThickness);

    translate([0,0,-bottomPushFitLength]){lowerPushFit(lowerDiameter);}
    translate([0,0,totalPipeLength*0.6]){upperPushFit(upperDiameter);}

}

module pipeValve(){

}

module halfPipe(){

}

thePlumber();
```


[User]
I need a set of OpenSCAD files to create a parametric shaving cream can bottom. Basically, it's a little cup that snaps onto the bottom of a standard shaving cream can to keep it from rusting on the shower ledge.

Here's the breakdown of what I need:

The main part will be a cylinder that forms the bottom lip, which the can will sit inside. I need to be able to adjust the diameter and height of this lip. Let's call this `bottomLipDiameter` and `bottomLipHeight`.

Inside of that lip, there needs to be another cylinder that will actually hold the can. This cylinder's diameter will be slightly smaller than the can's, so that it'll be a snug fit. I also want to be able to set the height. I want to call these parameters `canDiameter` and `canHeight`.

There's also going to need to be a tiny indent between the can-holding cylinder and the bottom lip cylinder. This will allow the printed part to grip the can tightly. The indent should be offset from the can cylinder's radius by a small amount, and I should be able to adjust this offset amount. This should also impact the height, so the indent does not extend beyond the can's height. Let's call the indent offset `indentOffset`.

So, I want to be able to set:
`bottomLipDiameter`
`bottomLipHeight`
`canDiameter`
`canHeight`
`indentOffset`

I need everything to be very round so the can will fit snugly, so use a high `$fn` value. The example file used `$fn = 720;`.

I want the final design to be constructed by subtracting the can cylinder and the indent cylinder from the bottom lip cylinder.

Could you please generate these files? I don't need any libraries for this design.

[Assistant]
shaving_cream_can_bottom.scad:
```
//
//  shaving_cream_can_bottom.scad
//
//  evilteach
//
//  06/10/2016
//
//
//         |                       |
//         |                       |           <- can diameter
//         |                       |
//         \                       /
//         /                       \           <- indentDiameter
//        |                         |
//        |                         |
//        |                         |
//        |-------------------------|          <- bottomLipDiameter
//
//
//  ABS print, speed 60/60, 1 shell, 5% fill, no raft or support structure
//  Just before it is finished printing, spray bottom sides of the
//  can with car undercoating.  Place it into the finished print while
//  it is still on the print bed.  As the print cools, it will grip
//  the can tightly.  The undercoating will keep water from getting between the
//  can and the printed bottom.
//

// very, very round so the can will fit snuggly
$fn = 720;

// This is the lip at the bottom of the can
bottomLipDiameter = 70.00;
bottomLipRadius   = bottomLipDiameter / 2;
bottomLipHeight   =  5.00;

// This is the the can itself
canDiameter = 65.85;
canRadius   = canDiameter / 2;
canHeight   =  3.00;

// This is the indent between the can and the bottom
indentOffset  = 0.3;

indentRadius = canRadius + indentOffset;
indentHeight = canHeight - indentOffset;

difference()
{
    color("yellow")
        cylinder(r = bottomLipRadius, h = bottomLipHeight);

    translate([0, 0, bottomLipHeight - canHeight])
        color("cyan")
            cylinder(r = canRadius, h = canHeight);

    translate([0, 0, bottomLipHeight - canHeight])
        color("red")
            cylinder(r = indentRadius, h = indentHeight);
}
```


[User]
I'd like to create a parametric hook design in OpenSCAD. I have a basic idea in mind, and I'd like the code to be well-structured and easy to modify.

Here's what I'm envisioning: The hook will have a flat back plate that attaches to a wall or other surface, and a curved hook that extends out. The back plate will be rectangular with rounded edges on the top and bottom, and it will have screw holes for mounting. The hook itself should be a partial cylinder, with a thickness parameter.

Here's a breakdown of the key parameters I need:

*   **`width`**: The width of the back plate.
*   **`height`**: The overall height of the back plate.
*   **`thickness`**: The thickness of the back plate. This thickness is consistent for the rounding.
*   **`firstScrewFromTop`**: The distance from the top of the back plate to the center of the first screw hole.
*   **`distanceBetweenScrews`**: The distance between the centers of the two screw holes.
*   **`hookDiameter`**: The diameter of the cylindrical portion of the hook. This will also determine the how much the hook will extend out from the back plate. The hook is not a full cylinder, it should only cover half of the cylinder's width on the x-axis.
*   **`screwDiameter`**: The diameter of the screw hole.
*   **`headDiameter`**: The diameter of the countersink for the screw head.
*   **`headDepth`**: The depth of the countersink.

The hook should be attached to the top part of the backplate using two circular "rounding" connections.

I'd like the design to be modular, with separate modules for the rounded cube, the hollow cylinder, the screw hole, the hook, the screw, and the overall hook assembly. Please make sure to use the `$fn` variable to control the smoothness of the curves. Please also ensure the object lies flat on the xy-plane.

Could you generate the necessary OpenSCAD code for this? I don't want to use any external libraries, just the basic functions of OpenSCAD.

[Assistant]
hook.scad:
```
width=20;
height=50;
thickness=3;
firstScrewFromTop=7;
distanceBetweenScrews=18;
hookDiameter=20;
$fn=100;

module round_cube(dimensions, radius) {
    translate([radius, radius, 0]) {
        minkowski() {
            cube([dimensions[0] - radius*2, dimensions[1] - radius*2, dimensions[2]-1]);
            cylinder(r=radius,h=1);
        }
    }
}

module hollow_cylinder(height, externalDiameter, internalDiameter) {
    difference() {
        cylinder(height, r=externalDiameter/2);
        translate([0, 0, -1]) cylinder(height + 2, r=internalDiameter/2);
    }
}

module screw_hole(screwDiameter, headDiameter, depth, headDepth) {
    translate([0, 0, -depth]) cylinder(h=4 * depth, r=screwDiameter / 2);
    translate([0, 0, depth - headDepth]) cylinder(h=4 * depth, r=headDiameter / 2);
}

module hook() {
    intersection() {
        hollow_cylinder(height=width, externalDiameter=hookDiameter, internalDiameter=hookDiameter - 2 * thickness);
        translate([0, -hookDiameter/2, 0]) cube([hookDiameter/2, hookDiameter, width]);
    }
}

module screw() {
    screw_hole(screwDiameter=4, headDiameter=7, depth=thickness, headDepth=1);
}

module rounding() {
    intersection() {
        round_cube([thickness*2 + 1, width, thickness], thickness);
        cube([thickness, width, thickness]);
    }
}

rotate([90, 0, 0]) difference() {
    union() {
        translate([0, 0, 0])
            rounding();
        translate([thickness, 0, 0])
            cube([height-thickness-hookDiameter/2, width, thickness], 3);
        translate([height - hookDiameter / 2, 0, hookDiameter / 2]) rotate([-90, 0, 0])
            hook();
        translate([height-thickness-hookDiameter/2, 0, hookDiameter-thickness])
            rounding();
    }

    translate([firstScrewFromTop, width/2, 0]) screw();
    translate([firstScrewFromTop + distanceBetweenScrews, width/2, 0]) screw();
}

```


[User]
I'm looking to create a customizable golf tee in OpenSCAD. I've seen some pretty neat designs but I want to be able to adjust a few specific things.

First, the tee should have a fairly standard shape, with a pointed bottom (the spike), a cylindrical shaft, and a wider head on top. I'd like to be able to control the diameter and height of each of these sections independently. The head should have an option to be either round or square.

Second, I want to add a text label somewhere on the shaft, and control the text itself, the text size, its thickness, and whether it's oriented vertically or horizontally. I also need an offset parameter to move the text up or down the shaft, relative to a defined center position.

Third, I need to add a "nub" on the shaft, and make it optional. This nub should also be adjustable in terms of its thickness, and have an option to position it at the middle, top, or bottom of the shaft. I think a simple donut shape for the nub would work well.

Finally, I would like a spherical cutout on the top of the tee head, like for a golf ball to rest in, and that cutout should have a diameter control.

I'd like this to be a single .scad file. Could you generate the parametric code for me? I'm not sure how to calculate the total height, so I think it'd be best if you did that for me. I'm not using any external libraries.

[Assistant]
Tee.scad:
```
// preview[view:south west, tilt:top diagonal]

/* [General] */
add_text = "Yes"; // [Yes,No]
text = "DAD";
// Add mid-shaft "nub"
add_nub = "Yes"; // [Yes,No]
head_type="Round"; // [Square,Round]

/* [Fine tuning] */
text_size=4; // [0:.1:10]
text_thickness=2; // [0:.1:10]
text_direction="Vertical"; // [Vertical,Horizontal]
text_offset=0; // [-50:1:50]
head_diameter=10; // [4:1:20]
head_height=14; // [4:.5:20]
shaft_height=70; // [30:1:140]
shaft_diameter=5; // [1:.1:20]
spike_height=6.5; // [0:.5:20]
nub_position="Middle"; // [Middle,Top,Bottom]
nub_thickness=3; // [0:1:20]
// Ball Imprint Diameter (Real Golf Ball = 42.7mm)
ball_diameter = 24; // [10:1:80]

/* [Hidden] */
$fn=50;
total_height=shaft_height+spike_height+head_height;

translate([total_height,0,0]) rotate([90,0,270]) {

total_height=shaft_height+spike_height+head_height;

if(add_text=="Yes")
{
  translate([text_direction=="Horizontal"?0:text_size/2,0,spike_height+shaft_height-2+text_offset])
    rotate([270,90+(text_direction=="Horizontal"?90:0),0]) linear_extrude(height=text_thickness+2) text(text,size=text_size,font="Helvetica:style=Bold",spacing=1,halign=text_direction=="Horizontal"?"center":"left");
}
translate([0,0,spike_height]) cylinder(d=shaft_diameter,h=shaft_height);
translate([0,0,.8])
cylinder(d1=1.4,d2=shaft_diameter,h=spike_height-.8);
translate([0,0,.8]) sphere(d=1.4);
translate([0,0,spike_height+shaft_height]) cylinder(d1=shaft_diameter,d2=head_diameter,h=head_height-4);
difference() {
  union(){
translate([0,0,shaft_height+spike_height+head_height-4]) cylinder(d=head_diameter,h=4);
    if(head_type=="Square")
    {
      translate([0,0,shaft_height+spike_height+head_height-2]) cube([head_diameter,head_diameter,4],center=true);
    }
  }
translate([0,0,total_height+(ball_diameter/2)-4]) rotate([0,90,0]) sphere(d=ball_diameter,$fn=100);
}
if(add_nub=="Yes"&&nub_thickness>0)
{
  nubd=(nub_thickness>=5)?(nub_thickness/2)+1:2.5;
  translate([0,0,spike_height+(nub_position=="Top"?shaft_height:(nub_position=="Bottom"?0:shaft_height/2))]) donut(thickness=nub_thickness,d=nubd);
}
}

module box(w,h,r=2)
{
  minkowski(){
  translate([r,r,r])
    cube(w-r*2,h-r*2);
  sphere(r=r);
  }
}

module donut(d=4,thickness=1) {
rotate_extrude(angle=360) {
  translate([d,0,0]) {
    translate([-1*(d/2),0,0])
    square([d,thickness],center=true);
    circle(d=thickness);
  }
}
}

```