[User]
Hi, I'd like to create a customizable stencil generator in OpenSCAD. I've seen some good ones online, but I'm looking for something specific, and I think it would be useful to have something very flexible I can use for different projects.

Here's what I need:

1.  **Text Input:** I need to be able to specify the text that will be stenciled. This could be letters, numbers, or even special characters if that's possible.

2.  **Font Selection:** The ability to choose from a wide variety of fonts would be great, ideally including stencil-friendly fonts, although if the design is parametric I might be able to import fonts myself. It should support common fonts like "Arial" or "Times New Roman". If possible, the font style (bold, italic, regular) should be selectable as well.

3.  **Font Size:** I need to specify the height of the text in millimeters (mm). This is critical since for some applications I need to have letters that are at least a certain size for legal reasons, like boat registrations.

4.  **Letter Spacing:** I want to control the space between letters.

5.  **Border Customization:** I need to be able to add borders around the text. I should be able to specify the border thickness at the top, bottom, left and right independently.

6.  **Stencil Depth:** I need to set the thickness of the stencil itself.

7.  **Resolution:** A detail setting that will control the smoothness of the curves, a lower resolution for faster rendering or higher resolution for smoother curves.

Essentially, I'm looking for a single OpenSCAD file that takes all of these parameters and generates a stencil. It should create the plate with the correct borders, and then cut out the text using the specified font, size, and spacing. I don't need anything special regarding attachment points - just a simple rectangle with the text cut out of it.

Could you help me design this? I want a purely parametric design that's easy to edit, with comments as much as possible, and don't need to see any examples of the text, font, etc. - I only need the bare-bones structure with all the proper parameters.

[Assistant]
custom_stencilsv1.1.scad:
```
// Customizable Stencils v 1.1
// http://www.thingiverse.com/thing:1488794
// Hacked by
// by infinigrove Squirrel Master 2016 (http://www.thingiverse.com/infinigrove)
//
// v1.0 Initial release
// v1.1 Fix issue with customizer and numbers
//      Moved Stencil friendly fonts to the top for customizer

Stencil_Text = "MC";

Stencil_Font="Stardos Stencil"; //[Allerta Stencil,Black Ops One,Sirin Stencil,Stardos Stencil,Wallpoet,Abril Fatface,Aclonica,Acme,Advent Pro,Akronim,Aladin,Alegreya,Alegreya Sans,Alegreya SC,Alex Brush,Alfa Slab One,Alice,Amaranth,Architects Daughter,Archivo Black,Archivo Narrow,Arimo,Arvo,Asap,Astloch,Asul,Averia Libre,Averia Serif Libre,Bangers,Basic,Belgrano,Berkshire Swash,Bigshot One,Bilbo Swash Caps,Bonbon,Bowlby One SC,Brawler,Bubblegum Sans,Butterfly Kids,Cabin Condensed,Caesar Dressing,Cagliostro,Calligraffitti,Capriola,Carter One,Changa One,Chango,Chelsea Market,Cherry Cream Soda,Chewy,Chicle,Chivo,Clicker Script,Coming Soon,Concert One,Condiment,Cookie,Courgette,Covered By Your Grace,Crimson Text,Dancing Script,DejaVu Sans,DejaVu Serif,Dhurjati,Doppio One,Dosis,Droid Sans,Eagle Lake,Electrolize,Emilys Candy,Encode Sans,Encode Sans Compressed,Euphoria Script,Exo,Exo 2,Faster One,Federo,Finger Paint,Fjord One,Fontdiner Swanky,Freckle Face,Fruktur,Gabriela,Geo,Germania One,Give You Glory,Gloria Hallelujah,Goudy Bookletter 1911,Graduate,Grand Hotel,Great Vibes,Griffy,Hanalei Fill,Happy Monkey,Henny Penny,Hind,IM Fell English SC,Indie Flower,Irish Grover,Italianno,Jacques Francois Shadow,Jolly Lodger,Josefin Slab,Joti One,Judson,Just Another Hand,Kalam,Kameron,Karma,Kavoon,Knewave,Kranky,Kristi,Laila,Lakki Reddy,Lancelot,Lato,Leckerli One,Ledger,Lekton,Lemon One,Liberation Sans,Libre Caslon Text,Life Savers,Lilita One,Lily Script One,Limelight,Lobster,Lobster Two,Londrina Outline,Londrina Shadow,Londrina Solid,Lora,Love Ya Like A Sister,Loved by the King,Lovers Quarrel,Luckiest Guy,Lusitana,Macondo,Macondo Swash Caps,Mako,Marck Script,Margarine,Marko One,Maven Pro,McLaren,MedievalSharp,Merienda One,Merriweather,Mervale Script,Metal Mania,Metrophobic,Milonga,Miltonian Tattoo,Miss Fajardose,Molle,Montez,Montserrat,Mr De Haviland,Mystery Quest,Neucha,New Rocker,Niconne,Nosifer,Nothing You Could Do,Noto Sans Oriya,Noto Serif,Nova Square,Nunito,Old Standard TT,Oleo Script,Oleo Script Swash Caps,Orbitron,Oregano,Orienta,Original Surfer,Oswald,Over the Rainbow,Overlock,Oxygen,Pacifico,Paprika,Parisienne,Patrick Hand SC,Paytone One,Peralta,Permanent Marker,Piedra,Pirata One,Play,Playball,Poetsen One,Poppins,Press Start 2P,Princess Sofia,PT Mono,Qwigley,Racing Sans One,Raleway,Rancho,Ranga,Ribeye,Roboto,Roboto Condensed,Roboto Slab,Rochester,Rock Salt,Rubik One,Sail,Salsa,Sansita One,Sarina,Satisfy,Schoolbell,Seaweed Script,Sevillana,Shadows Into Light,Shadows Into Light Two,Share,Six Caps,Skranji,Source Sans Pro,Spicy Rice,Stoke,Syncopate,Teko,Terminal Dosis,The Girl Next Door,Tillana,Timmana,Titillium Web,Ubuntu,Ultra,Underdog,UnifrakturCook,UnifrakturMaguntia,Vampiro One,Vidaloka,Viga,Voces,Volkhov,Vollkorn,Voltaire,Waiting for the Sunrise,Wellfleet,Wendy One,Yellowtail,Yesteryear,Zeyada]

Font_Style="Bold"; //[Regular, Bold, Italic]

//Height of characters [mm]
Font_Size=80;  //[5:200]

Letter_Spacing = 1; //[-1:0.5:5]

Boarder_Top=10;  //[0:90]

Boarder_Bottom=10;  //[0:90]

Boarder_Left=10;  //[0:90]

Boarder_Right=15;  //[-150:150]

Stencil_Depth=.6;  //[.2:0.2:3]

Stencil_Detail=100;  //[5:200]

/* [Hidden] */

letterspacingtext = 1.0+Letter_Spacing/10;

StencilWidth=((Font_Size)*(len(str(Stencil_Text)))+Boarder_Left+Boarder_Right);

StencilHeight=Font_Size+Letter_Spacing+Boarder_Top+Boarder_Bottom;

fontstylestencil = str(Stencil_Font,":",Font_Style);

difference (){
    // create stencil plate
    color("yellow")cube([StencilWidth,StencilHeight,Stencil_Depth]);

    // Remove Characters
    translate([Letter_Spacing+Boarder_Left,Font_Size+Letter_Spacing+Boarder_Bottom,-.5]){
    color("red")linear_extrude(Stencil_Depth+1,$fn=Stencil_Detail) text(str(Stencil_Text), Font_Size, font = fontstylestencil, valign = "top", halign = "left", spacing = letterspacingtext);
}
}
```


[User]
I need an OpenSCAD design for a customizable tube. I want to be able to specify the height of the tube, the overall diameter, and the thickness of the tube wall. The attached SCAD file shows the basic idea; could you create a parametric version of this, please? The parameters should be:

*   `tub_mida`: The height of the tube
*   `tub_diametre`: The outer diameter of the tube
*   `tub_gruix`: The thickness of the tube wall

I'd also like to be able to control the number of sides of the tube, so let's call that `tub_sides`, with a default of 0 for a cylinder. If the user wants a tube with a specific number of sides instead of a smooth cylinder, they can set `tub_sides` to a value larger than 3.

Could you also incorporate a `center_tube` parameter, defaulted to `true`, that if set to `false`, will render the tube from the origin, not centered?

[Assistant]
custom_tub.scad:
```
//Altura del tub
tub_mida = 100; // [1:500]

//Diametre del tub
tub_diametre = 50; // [1:100]

//Gruix de la pared del tub
tub_gruix = 5; // [1:100]

difference()
{
cylinder(r=tub_diametre/2,h=tub_mida);
cylinder(r=(tub_diametre/2)-tub_gruix,h=tub_mida);
}

```


[User]
Hey, I need to design a protective corner piece for a table, and I'd like to be able to customize it based on the table's dimensions and the desired size/shape of the protector. I'd like the design to be parametric so I can easily change things like the table thickness, edge length of the protector, its thickness, quality, and also have a choice between two different design styles.

Essentially, the protector goes on a 90 degree corner. I need it to attach both above and below the table top.

I've got an example of what the parameters can be, and what the output file name might look like: "Protective_corner_table[18,35,4,55,2]" but I don't actually have any code yet. So please don't try and edit an existing SCAD file.

The parameters I need are:

*   `Table_thickness`: The thickness of the table top it will be protecting.
*   `Part_edge_length`: The length of the part along the edge of the table (how far it sticks out).
*   `Part_thickness`: How thick the protector itself will be.
*   `Quality`: For the roundness of the corners, and anything rounded. Lower numbers mean blockier, higher numbers mean smoother.
*   `Design_1_or_2`: This allows me to pick between two design styles, where `1` is more "fitted" to the corner, and `2` is more rounded.

Ideally, the output would be a single SCAD file, and it doesn't need any libraries.

I want to be able to print four of these and place them on each corner of a rectangular table.

[Assistant]
Protective_corner_table_V2.scad:
```
// PROTECTIVE CORNER FOR TABLE
//////////////////////////////
//This part is meant to be placed on the corner of a table in order to avoid people from bumping into it and getting hurt
//Designed by David LE GALL on 13/04/2016 and published under the CC-BY-NC liscence
//////////////////////////////

///////////////////
//USER PARAMETERS//
///////////////////
Table_thickness=15;//Thickness of the table to protect
Part_edge_length=45;//Length of the part along the edge of the table
Part_thickness=4;//Thicknes of the part
Quality=25;//Quality of the model
Design_1_or_2=2;//First design "sticks" a little more to the shape of the table wereas second design is more rounded

//////////////////////////////////////////////
rotate([0,-90,0])rotate([0,0,45])difference(){
if ( Design_1_or_2 == 1)
{
    hull(){
        translate([Part_edge_length/2,Part_edge_length/2,Table_thickness/2])sphere(Part_thickness,$fn=Quality);
        translate([Part_edge_length/2,Part_edge_length/2,-Table_thickness/2])sphere(Part_thickness,$fn=Quality);
        translate([Part_edge_length/2,-Part_edge_length/2,Table_thickness/2])sphere(Part_thickness,$fn=Quality);
        translate([Part_edge_length/2,-Part_edge_length/2,-Table_thickness/2])sphere(Part_thickness,$fn=Quality);
        translate([-Part_edge_length/2,-Part_edge_length/2,Table_thickness/2])sphere(Part_thickness,$fn=Quality);
        translate([-Part_edge_length/2,-Part_edge_length/2,-Table_thickness/2])sphere(Part_thickness,$fn=Quality);
    }
}
if ( Design_1_or_2 == 2)
      hull(){
        translate([Part_edge_length/2,Part_edge_length/2,0])sphere(Part_thickness+Table_thickness/2,$fn=Quality);
        translate([Part_edge_length/2,-Part_edge_length/2,0])sphere(Part_thickness+Table_thickness/2,$fn=Quality);
        translate([-Part_edge_length/2,-Part_edge_length/2,0])sphere(Part_thickness+Table_thickness/2,$fn=Quality);
    }

union(){
cube([Part_edge_length,Part_edge_length,Table_thickness],true);
rotate([0,0,45])translate([0,2*(Part_edge_length+Part_thickness),0])cube([4*(Part_edge_length+Part_thickness),4*(Part_edge_length+Part_thickness),4*(Part_edge_length+Part_thickness)],true);
}
}

```


[User]
I'd like to design a sunglasses holder that mounts into the radio slot of a car. I have a basic idea, but need a fully parametric design in OpenSCAD.

Essentially, the holder will consist of a ring that cradles the glasses, a flat plate that attaches to the radio mount, and two sticks that connect the ring to the plate. I need to be able to customize all of these dimensions.

For the ring:
*   It should be a "D" shape, a half-cylinder with a rectangular portion, essentially.
*   I need to control the width of the ring (`rw`), the height of the ring (`rh`), and the thickness of the ring material (`t`). The width should be adjustable for different glasses sizes and I imagine there needs to be a minimum width for structural integrity.
*   The ring should be rotated 90 degrees on the X axis.

For the plate:
*   This is a simple rectangular plate that sits behind the ring and is the part that interfaces with the radio mount. I'd like to be able to adjust the plate's width (`rw + 2*t`) and depth (`hsr*2`), and the height (`hsd`).
*  The plate should be offset so that its left edge aligns with the left edge of the ring.

For the connecting sticks:
*   There should be two cylindrical sticks.
*   I need to control the distance between the sticks (`hsd`), the stick length (`hsl`), and the stick radius (`hsr`).
*   The sticks should be rotated to be vertical and also 90 degrees on the Z axis. They should extend a little past the front of the ring so that the ring is securely attached.

Finally, I need the object to be mirrored on the X axis so I can use it on either side of the radio. The number of segments in the arcs should be adjustable for print resolution.

So the configurable parameters I'll need are: `hsd`, `hsl`, `hsr`, `rw`, `rh`, `t`, and `$fn`.

Could you generate the necessary OpenSCAD code for this? I don't need to use any external libraries.

[Assistant]
glassesholder2.scad:
```
/*[holder plate]*/
//stick distance mm
hsd=34.6;
//stick length mm
hsl=25;
//stick radius mm
hsr=1.8;

/*[holder ring]*/
//width mm (min 10)
rw=16;
//heigth mm
rh=12;
//thickness mm
t=2;
//elements of the arc
$fn=40;

rotate([90,0,0]) {
    //holder ring
    translate([-rw/2-t,rw/2,hsd/2]) {
        difference() {
            //outside
            union() {
                translate([0,-rw/4,0])
                cube([rw+2*t,(rw+2*t)/2,rh],center=true);
                cylinder(rh,rw/2+t,rw/2+t,center=true);
            }
            //cutout
            union() {
                translate([0,-rw/2,0])
                cube([rw,rw,rh*2],center=true);
                cylinder(rh*2,rw/2,rw/2,center=true);
            }
        }
    }

    //holder plate
    translate([-(rw+2*t),-hsr*2,0]) {
        cube([rw+2*t,hsr*2,hsd]);
    }
    //holder sticks
    translate([0,-hsr,0]) {
        rotate([270,0,90]) {
            cylinder(hsl+rw+t,hsr,hsr);
            translate([0,-hsd,0]) {
                cylinder(hsl+rw+t,hsr,hsr);
            }
        }
    }

}
```


[User]
I'm trying to design a vacuum nozzle attachment for my shop vac, and I'm not having much luck with the thing I found online. It's supposed to fit snugly onto the end of the vacuum hose, then narrow down to a flat nozzle for getting into tight spaces. The one I found is a bit clunky.

I need something parametric in OpenSCAD, so I can easily adjust the dimensions to fit my specific vacuum hose and nozzle needs. Here's what I'm envisioning:

1.  **Hose Connector:** This part should be a cylinder that fits over the end of the vacuum hose. I need to be able to set the inner diameter, outer diameter, and length of this cylinder. It should have a slight friction fit, so I'll need to play with the dimensions a bit. I would prefer to set a hose diameter, a wall thickness, and a length rather than explicit inner and outer diameters.
2.  **Transition Section:** The cylinder should then transition smoothly into a flat, rectangular nozzle. This transition should use a hull to make the change in shape and ideally be able to control the length of this transition.
3.  **Flat Nozzle:** The flat nozzle should be a rectangular solid with adjustable width, height, and length.
4.  **Parameters:** I need all the key dimensions to be easily adjustable parameters at the top of the file. This should include the hose diameter, wall thickness of the connector, the length of the connector, the length of the transition, the width of the flat nozzle, the height of the flat nozzle, and the length of the flat nozzle. I think I'd also like to specify the resolution, $fn, for circular features.
5.  **Single File:** Ideally all of this should be in a single .scad file for simplicity.
6. **No libraries:** I don't need any special OpenSCAD libraries for this design, just basic OpenSCAD primitives.

Can you help me with this?

[Assistant]
vacuumNozzle.scad:
```
innerRadius = 25;
wallThickness = 2;
nozzleWidth = 40;
nozzleHeight = 7;

difference()
{
union()
{
    translate([0,0,0])cylinder(25, innerRadius+wallThickness, innerRadius+wallThickness, false, $fn = 100);

        hull()
        {
        translate([0,0,20])cylinder(25, innerRadius+wallThickness, innerRadius+wallThickness, false, $fn = 100);
        translate([0,0,90])cube([nozzleWidth+2*wallThickness, nozzleHeight+2*wallThickness, 40], true);

        }
}
union()
    {
    translate([0,0,-1])cylinder(26, innerRadius, innerRadius, false, $fn = 100);

        hull()
        {
        translate([0,0,19])cylinder(26, innerRadius, innerRadius, false, $fn = 100);
        translate([0,0,90])cube([nozzleWidth, nozzleHeight, 41], true);

        }
    }
}
```


[User]
I'm looking to create a customizable pocket hole jig for woodworking, similar to the one described in the provided text. I need it to be fully parametric, allowing for adjustments to the hole angle, hole diameter, hole depth, number of holes, hole spacing, and edge thickness. I'd also like to make sure it's robust enough to withstand repeated use.

Here are the specific parameters I want to control:

*   **`holeAngle`:** The angle of the pocket holes (in degrees).
*   **`holeSize`:** The diameter of the pocket holes (in millimeters).
*   **`holeDepth`:** The depth of the pocket holes (in millimeters).
*   **`numberOfHoles`:** The number of pocket holes in the jig.
*   **`holeSpacing`:** The center-to-center spacing between pocket holes (in millimeters).
*   **`edgeSpacing`:** The thickness of the material surrounding each pocket hole as a percentage of the hole size.

The jig should consist of two main parts: a guide with angled holes and a base that supports the guide. I would like the design to include a way to create the pocket hole shape, that is a cylindrical hole that extends through the base piece as well as a countersink-like feature for the screw head, on the opposite side.

Can you generate the OpenSCAD code to create this parametric pocket hole jig? I would really appreciate it if you could also use some kind of method to make it easy to grip or clamp while in use, as this current model looks like it could slide around without some kind of gripping force. I don't have any strong preference for the exact gripping method. Thank you! I don't need any external libraries in the design.

[Assistant]
Open_Jig_.scad:
```
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
|* Parameterized Pocket Hole Jig                                               *|
|* Created By:  Corey Abate (@SpoonlessCorey)                                  *|
|* Last updated: 13APR2016                                                     *|
|*                                                                             *|
|* This work is licensed under:                                                *|
|* Creative Commons Attribution-ShareAlike 4.0 International License           *|
|*                                                                             *|
|* To view a copy of this license, visit                                       *|
|* http://creativecommons.org/licenses/by-sa/4.0/.                             *|
|*                                                                             *|
\* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

//Tweakables
//================================================

//Hole angle in degrees
holeAngle     = 22;

//Hole diameter in mm
holeSize      = 10;

//Hole depth in mm
holeDepth     = 30;

//Number of holes
numberOfHoles = 2;

//Center-to-center hole spacing
holeSpacing   = 20;   //mm (center to center)

//thickness around holes as a percent of holeSize
edgeSpacing   = 25;

//Some math and stuff
//================================================
edge         = edgeSpacing/100;
width        = (numberOfHoles - 1)*holeSpacing + holeSize + 2*edge*holeSize;
offsetWidth  = -edge*holeSize - holeSize/2;
guideHeight  = (1+2*edge)*holeSize;
baseHeight   = holeDepth*sin(holeAngle)-guideHeight*cos(holeAngle)/2;
baseLength   = guideHeight*sin(holeAngle) + holeDepth*cos(holeAngle)-((guideHeight/2)*sin(holeAngle));
baseOffsetV  = -guideHeight*cos(holeAngle)/2;
gripLength   = guideHeight/sin(holeAngle);
gripHeight   = guideHeight*cos(holeAngle);

//Creating the parts
//================================================
rotate([0,0,180])
difference(){

    //Block Geometry
    union(){

        //Guide Geometry
        rotate([90-holeAngle,0,90])
            translate([offsetWidth, offsetWidth, 0])
                cube([width,guideHeight,holeDepth]);

        //Base Geometry
        rotate([270,0,0])
            translate([0,0,offsetWidth])
                linear_extrude(height = width)
                    polygon( points=[[0,-gripHeight/2],
                                    [baseLength,-baseHeight],
                                    [baseLength,-baseOffsetV],
                                    [-gripLength,-baseOffsetV],
                                    [-gripLength,-gripHeight/2]] );

    }

    //Hole Geometry
    for( i = [0: numberOfHoles-1]){

        rotate([90-holeAngle ,0,90])
            translate([i*holeSpacing,0,0])
                cylinder(r=holeSize/2,h=holeDepth+2 ,$fn=16);

        rotate([270-holeAngle ,0,90])
            translate([i*holeSpacing,0,-1])
                cylinder(r=holeSize/2,h=1000 ,$fn=16);

        translate([-holeSize/2,i*holeSpacing,holeSize*3/4])
            rotate([90,0,0])
                cylinder(r=holeSize*3/4,h=holeSize*0.9 ,$fn=16, center = true);

    }

}

```


[User]
I'm trying to design a motor mount for my quadcopter, specifically for 2204 motors onto half-inch wooden booms. I've got some basic design requirements and I'd like you to generate the OpenSCAD files for me.

Here's what I'm after:

**Core Functionality:**

*   It needs to mount a standard 2204 brushless motor. This includes mounting holes for the motor screws, a clearance hole for the motor shaft, and a way to clamp onto a half-inch (12.7mm) diameter wooden boom.
*   The mount should have a shell for some extra protection.
*   I want to be able to adjust things like the motor bolt spacing, boom diameter, shell size, and overall plate size. Everything needs to be parametric.
*   I would like to have clearance for screws of a specified size.

**Specific Parameters (that need to be configurable):**

*   **Motor Bolt Spacing:**  X distance between motor mounting bolts, and Y distance between them.
*   **Screw Size:**  Diameter of the screws for mounting the motor.
*   **Motor Plate:** Thickness of the motor mounting plate and the overall diameter of the plate.
*   **Boom/Arm Diameter:** The outer diameter of the wooden boom this is intended to mount on.
*   **Shell:**  The outer diameter of the protective shell.
*  **Bolt Shaft Length** The length of the bolts used to mount the motors.

**Design Notes:**

*   The mounting hole pattern should be rotated 45 degrees relative to the boom so that the bolts go through the boom.
*   I'm using 3mm screws for the motor. I had some trouble with the current design because the holes are a bit small for my printer, so keep that in mind with tolerances. It'd be nice if the screw holes could be slightly larger to accommodate a more typical 3mm bolt.
*   The bolts will pass through the wooden boom when using the default motor spacing.
*   I'd like to use the hull function to make a nice smooth shape, but want a clipping shape to remove material from the shell to allow for the arm to connect to it.
*   I would like to use the BOSL2 library if that is okay.

I think that's it for now. Let me know if you need more information. Thanks!

[Assistant]
jth_motor_mount.scad:
```
/* [Motor Bolts] */
Motor_Bolt_X_spacing = 16; // Motor Bolts X distance
Motor_Bolt_Y_spacing = 19; // Motor Bolts Y distance
Screw_Size = 3; // Screw Size

/* [Motor Plate] */
Plate_Thickness = 5;
Plate_Diameter = 32;

/* [Arm Size] */
arm_outside_diameter = 13;

/* [Shell Size] */
Shell_OD = 20;

/* [Hidden] */
$fs = 0.2;
Plate_Radius = Plate_Diameter/2;

difference() {
    hull() {
        difference() {
            // Shell
            translate([3,0,11]) cube([26,Shell_OD,Shell_OD],true);
            // Shell clipping shape
            difference() {
                translate([5,0,11]) cube([32,Shell_OD+1,Shell_OD+1],true);
                translate([5,0,11]) rotate([0,90,0]) cylinder(32,9.7,12,true);
                translate([5,0,0]) cube([40,Shell_OD+1,Shell_OD+1],true);
            }
        }
        // Motor Plate
        cylinder(Plate_Thickness,Plate_Radius,Plate_Radius,true);
        // End Ball
        translate([-Shell_OD/2,0,Shell_OD/2]) sphere(Shell_OD/2);
    }
    // Remove arm material
    translate ([20,0,10]) cube([60,arm_outside_diameter,arm_outside_diameter],true);
    // Remove motor post material
    translate([0,0,30]) motor_posts(25);
    // Remove motor screw material
    motor_screws(50);
    // Remove motor shaft clerance
    translate([0,0,0]) cylinder(8,3,3,true);
}

module motor_posts(sl=10) {
    rotate([0,0,45]) {
    translate([Motor_Bolt_X_spacing/2,0,0]) cylinder(sl,Screw_Size,Screw_Size,true);
    translate([-Motor_Bolt_X_spacing/2,0,0]) cylinder(sl,Screw_Size,Screw_Size,true);
    translate([0,Motor_Bolt_Y_spacing/2,0]) cylinder(sl,Screw_Size,Screw_Size,true);
    translate([0,-Motor_Bolt_Y_spacing/2,0]) cylinder(sl,Screw_Size,Screw_Size,true);
    }
}

module motor_screws(sl=10) {
    rotate([0,0,45]) {
    translate([Motor_Bolt_X_spacing/2,0,0]) cylinder(sl,Screw_Size/2,Screw_Size/2,true);
    translate([-Motor_Bolt_X_spacing/2,0,0]) cylinder(sl,Screw_Size/2,Screw_Size/2,true);
    translate([0,Motor_Bolt_Y_spacing/2,0]) cylinder(sl,Screw_Size/2,Screw_Size/2,true);
    translate([0/2,-Motor_Bolt_Y_spacing/2,0]) cylinder(sl,Screw_Size/2,Screw_Size/2,true);
    }
}
```


[User]
I'm looking to design a parametric box corner that allows for easy assembly and disassembly of boxes made from sheet materials like plexiglass, wood, or metal. I've seen an example of something close, but I want to make sure it's easily customizable for different bolt sizes and material thicknesses.

Ideally, the design would have the following features:

*   **Corner Cube:** The core of the design is a cube. The size of this cube should be a primary parameter (`cube_size`).
*   **Nut Sinks:** Each corner of the cube will have a nut recessed into it, allowing bolts to secure the box sides.
    *   The design needs to support hexagonal nuts of varying sizes, with parameters for `nut_size` (the width of the hexagon), `nut_diameter` (the inner diameter of the nut, to be the bolt diameter), and `nut_height`.
    *   I'd like to control whether the nut sink is on all sides of the corner or only on the three that will be facing outwards, using a parameter called `nut_sinks_on_all_sides` (0 or 1).
*   **Bolt Holes:** Obviously, there should be a clearance hole through the center of each nut sink for the bolt to pass through.
*   **Clearance:**  I need a small tolerance to the nut dimensions and bolt diameter for a comfortable fit. I want a parameter `epsilon` to adjust this tolerance.
*   **Parameterization:** Everything should be driven by parameters, allowing me to easily adjust the design for different bolt sizes and materials, and also easily configure the overall size of the corner piece.
*   **Library Use:** It's fine to use helper modules and functions for things like generating hexagons. I don't have a particular library in mind, just as long as it's a reasonably standard one for OpenSCAD.

I imagine I will create three corner pieces, then use a box material that is cut out so that a bolt going through one corner screws into a nut embedded in another corner.

Could you generate the necessary OpenSCAD file(s) to accomplish this? I think I'll only need one file in this case.

[Assistant]
box_corner.scad:
```
/* Copyright (C) Peter Ivanov <ivanovp@gmail.com>, 2016 */
/* License: Creative Commons - Attribution - Non-commercial (CC BY-NC) */

cube_size = 13; // [10:50]
// M3 = 5.5 mm, M4 = 7 mm, M5 = 8 mm, M6 = 10 mm
nut_size = 5.5; // [5:0.1:20]
// M3 = 3 mm, M6 = 6 mm, and so on...
nut_diameter = 3; // [3:0.1:20]
// M3 = 2.6 mm, M4 = 3.44 mm, M5 = 4.24 mm, M6 = 5.24 mm
nut_height = 2.6; // [2:0.1:15]
// Only three nuts should be installed anyway
nut_sinks_on_all_sides = 0; // [0:No, 1:Yes]
// Allowance, it will be added to nut size, diameter and height
epsilon = 0.1; // [0.0:0.05:0.5]
//epsilon = 0.1; // tul keves
//epsilon = 0.5; // tul sok

/* [Hidden] */
fn = 30;

difference()
{
    cube(cube_size, cube_size, cube_size);
    translate([cube_size / 3, 0, cube_size / 3])
    {
        rotate([-90, 0, 0])
        {
            translate([0, 0, cube_size]) hexagon(nut_size + epsilon, (nut_height * 2 + epsilon) * nut_sinks_on_all_sides, 0);
            cylinder(d = nut_diameter + epsilon, h = cube_size + epsilon, $fn=fn);
            hexagon(nut_size + epsilon, nut_height * 2 + epsilon, 90);
        }
    }
    translate([0, cube_size / 3, cube_size * 2 / 3])
    {
        rotate([0, 90, 0])
        {
            translate([0, 0, cube_size]) hexagon(nut_size + epsilon, (nut_height * 2 + epsilon) * nut_sinks_on_all_sides, 0);
            cylinder(d = nut_diameter + epsilon, h = cube_size + epsilon, $fn=fn);

            hexagon(nut_size + epsilon, nut_height * 2 + epsilon, 0);
        }
    }
    translate([cube_size * 2 / 3 , cube_size * 2 / 3, 0])
    {
        rotate([0, 0, 90])
        {
            translate([0, 0, cube_size]) hexagon(nut_size + epsilon, nut_height * 2 + epsilon, 0);
            cylinder(d = nut_diameter + epsilon, h = cube_size + epsilon, $fn=fn);
            hexagon(nut_size + epsilon, (nut_height * 2 + epsilon) * nut_sinks_on_all_sides, 0);
        }
    }
}

module hexagon(width, height, baseAngle)
{
  bwidth = width / 1.75;
  for (angle = [baseAngle, baseAngle + 60, baseAngle + 120])
  {
      rotate([0, 0, angle]) cube([bwidth, width, height], true);
  }
}

```


[User]
I'm looking to create a customizable rotational switch, similar to the one in the provided Thingiverse link (http://www.thingiverse.com/thing:1357028), but without the wall that blocks marbles. Essentially, it's a spoked wheel with a central hub and axle hole, and I need to be able to array multiple copies of it.

Here's what I'm after:

*   **Wheel Geometry:** It should consist of an outer ring (which is not modeled currently but implied by the existing code), a central hub, and spokes connecting the two.
*   **Parameters:** I need to be able to control the following aspects:
    *   `outer_diameter`: The diameter of the wheel itself (currently, the outer ring isn't explicitly modeled, so this needs to be considered).
    *   `wall_thickness`: The thickness of the implied outer ring.
    *   `thickness`: The overall thickness of the wheel.
    *   `spokes`: The number of spokes in the wheel.
    *   `spoke_thickness`: The thickness of each spoke.
    *   `spoke_width`: The width of each spoke.
    *   `hub_thickness`: The thickness of the central hub.
    *   `axle`: The diameter of the axle hole in the hub.
*   **Array:** The design should allow for easy creation of arrays of wheels, controllable with parameters:
    *   `number_x`: Number of wheels to array along the x-axis.
    *   `number_y`: Number of wheels to array along the y-axis.
*   **OpenSCAD:** The design should be parametric in OpenSCAD.
*   **Libraries:** I'd prefer to not rely on external libraries if possible, so just the standard OpenSCAD language would be ideal.

Could you generate the OpenSCAD file(s) to accomplish this? Please make sure all parameters are easily adjustable at the top of the file.

[Assistant]
Bensfinalwheelspinningthing1.scad:
```
outer_diameter=50;
wall_thickness=2;
thickness=5;
spokes=3;
spoke_thickness=16;
spoke_width=3;
hub_thickness=16;
axle=7;

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

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

$fn=200;

module wheel()
{

difference()
{

union()
{

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

//########################################################
// Hub
//########################################################

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

//########################################################
// Spokes
//########################################################
//cylinder(r=0.30*outer_diameter, h=2 );

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

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

}

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

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

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

{

//cylinder(r=0.30*outer_diameter, h=2 );

}
```


[User]
Hey, I'm looking to create a program for making customizable beads using OpenSCAD. I have some basic ideas of what I want, but I'm hoping you can help me make it a bit more robust and parametric.

First off, I need to be able to control the size of the bead. This should include the overall diameter, the height of the bead, and the diameter of the hole that runs through it. I’d also like to be able to choose which axis the hole is on (x, y, or z) or none at all.

I want to have several different shape options for the bead. I’m thinking circle, a 5-point star, a 6-point star, triangle, square, pentagon, hexagon, octagon, a heart, and an android shape. The shapes should all be inscribed in a circle where the diameter can be controlled by the user. And the code should take user specified resolution so a user could set $fn if they wanted. I also would like an option to enable or disable a rounded center for the bead, effectively creating a semi-spherical bead instead of a flat one.

I need the ability to switch between different unit systems. I’d like to be able to input sizes in millimeters, centimeters, meters, inches, or feet, and then output the design in millimeters, centimeters, meters, inches, or feet. This will probably require a user-set unit conversion factor.

Also, for now, let’s ignore color options. I’m not concerned about that for this project.

I want the code to be well-structured and easy to modify if I want to add new shapes or features later. I’m hoping for a parametric OpenSCAD design.

[Assistant]
beads.scad:
```

/* [Size of bead] */
//other shapes will be inscribed in a circle with that diameter
diameter_of_bead = .5;
height_of_bead = .1875;
/*[the hole in the bead]*/
diameter_of_hole = .0625;
axis_hole_is_on = 2;//[1:"z",2:"x",3:"y",4:"no hole"]
/*[advanced features]*/
//only mess with if you dare ^_^
ignore_error_messages = 2;//[1:true,0:false]

bead_shape = 9; //[0: circle, 1: 5 point star, 2: 6 point star, 3: triangle, 4: square, 5: pentagon, 6: hexagon, 8: octogon, 9: heart, 10: android, 11: (also not ready yet) apple]
resoultion = 40;//[5:100]
rounded_center =1;//[1:true,0:false]
//won't be implemented (yet...)
number_of_Colors = 1;

/* [Unit adjustment] */
//Basically are you using american units or real units
units_entered = 25.4;//[1:mm, 10:cm, 1000:meter, 25.4:inch, 304.8:foot]

//default is mm for most printers
desired_units_for_output = 1;//[1:mm, .1:cm, 0.001:meter, 0.0393701:inch, 0.00328084:foot]
//CUSTOMIZER VARIABLES END

unit_conversion_factor = units_entered*desired_units_for_output;

module base_shape (type_of_shape = 0){
	linear_extrude(height_of_bead*unit_conversion_factor){
		if(type_of_shape == 0){
			//circle
			circle(diameter_of_bead*unit_conversion_factor/2,$fn=resoultion);
		}
		else if(type_of_shape ==1){
			//5 point star
			rotate([0,0,-90]){
				polygon([[0,.5],[.476,.155],[.294,-.405],[-.294,-.405],[-.476,.155]]*diameter_of_bead*unit_conversion_factor,[[0,2,4,1,3]]);
				polygon([[.113,.156],[.182,-.059],[0,-.192],[-.182,-.059],[-.113,.156]]*diameter_of_bead*unit_conversion_factor,[[0,1,2,3,4]]);
			}
		}
		else if(type_of_shape ==2){
			//6 point star
			circle(diameter_of_bead*unit_conversion_factor/2,$fn=3);
			rotate([0,0,180]){
				circle(diameter_of_bead*unit_conversion_factor/2,$fn=3);
			}
		}
		else if(type_of_shape ==3){
			//triangle
			circle(diameter_of_bead*unit_conversion_factor/2,$fn=3);
		}
		else if(type_of_shape ==4){
			//square
			circle(diameter_of_bead*unit_conversion_factor/2,$fn=4);
		}
		else if(type_of_shape ==5){
			//pentagon
			circle(diameter_of_bead*unit_conversion_factor/2,$fn=5);
		}
		else if(type_of_shape ==6){
			//hexagon
			circle(diameter_of_bead*unit_conversion_factor/2,$fn=6);
		}
		else if(type_of_shape ==8){
			//octogon
				circle(diameter_of_bead*unit_conversion_factor/2,$fn=8);
		}
		/*else if(true){
			text("invalid shape of bead");
		}*/
		else if(type_of_shape == 9){
			rotate([0,0,90]){
				scale([diameter_of_bead*unit_conversion_factor,diameter_of_bead*unit_conversion_factor,0]){
					polygon([[.433,.25],[0,-.5],[-.433,.25],[-.393,.302],[-.342,.342],[-.281,.366],[-.217,.375],[-.152,.366],[-.092,.342],[-.04,.302],[0,.25],[.04,.302],[.092,.342],[.152,.366],[.217,.375],[.281,.366],[.342,.342],[.393,.302]]);
				}
			}
		}
		else if(type_of_shape ==10){
			//android
			scale([diameter_of_bead*unit_conversion_factor,diameter_of_bead*unit_conversion_factor,0]){
				translate([.25,0,0]){
					//head
					circle(.25,$fn = resoultion);
				}
				//body
				square(.5,center=true);
				translate([0,.25+.0312,0]){
					//left arm
					polygon(points=[[-.125,-.03125],[-.125,.03125],[.125,.03125],[.125,-.03125]]);
					translate([.125,0,0]){
						circle(.03125,$fn = resoultion);
					}
					translate([-.125,0,0]){
						circle(.03125,$fn = resoultion);
					}
				}
				translate([0,-.25-.0312,0]){
					//right arm
					polygon(points=[[-.125,-.03125],[-.125,.03125],[.125,.03125],[.125,-.03125]]);
					translate([.125,0,0]){
						circle(.03125,$fn = resoultion);
					}
					translate([-.125,0,0]){
						circle(.03125,$fn = resoultion);
					}
				}
				translate([-.25,.125,0]){
					//left leg
					polygon(points=[[-.125,-.0625],[-.125,.0625],[.125,.0625],[.125,-.0625]]);
					translate([-.125,0,0]){
						circle(.0625,$fn = resoultion);
					}
				}
				translate([-.25,-.125,0]){
					//right leg
					polygon(points=[[-.125,-.0625],[-.125,.0625],[.125,.0625],[.125,-.0625]]);
					translate([-.125,0,0]){
						circle(.0625,$fn = resoultion);
					}
				}
			}

		}
		else if(type_of_shape ==11){

		}

	}
}
module holes_to_be_cut(){
	translate([0,0,-.1*unit_conversion_factor]){
		linear_extrude((height_of_bead+diameter_of_bead+1)*unit_conversion_factor,center=true)
				circle([diameter_of_hole*unit_conversion_factor,diameter_of_hole*unit_conversion_factor],$fn=resoultion/2);
	}
}

module round_bead(){
	translate([0,0,height_of_bead*unit_conversion_factor/2]){
		resize(newsize=[diameter_of_bead*unit_conversion_factor,diameter_of_bead*unit_conversion_factor,height_of_bead*unit_conversion_factor],center=true){
				sphere(diameter_of_bead*unit_conversion_factor,$fn=resoultion);
		}
	}
}
//user error message, aka warning you broke it

intersection(){
	difference(){
		base_shape(type_of_shape =bead_shape);
		if(axis_hole_is_on == 1){
			rotate([0,0,0]){
				holes_to_be_cut();
			}
		}
		else if(axis_hole_is_on == 2){
			translate([0,0,height_of_bead*unit_conversion_factor/2]){
				rotate([0,90,0]){
					holes_to_be_cut();
				}
			}
		}
		else if(axis_hole_is_on==3){
			translate([0,0,height_of_bead*unit_conversion_factor/2]){
				rotate([90,0,0]){
					holes_to_be_cut();
				}
			}
		}
	}

	if(rounded_center==1){
		round_bead();
	}
}

```


[User]
Okay, I'm looking to create a parametric mount for a camera, similar to a VESA mount, but with a ball-and-socket joint for more flexibility. I also want it to have an adjustable height slider. I'm hoping you can generate the OpenSCAD files for me.

Here’s the general idea:

**VESA Mount Base:**
*   It needs to attach to a monitor using the standard 100mm VESA hole pattern. I'll need the standard 4.5mm screw holes, and probably countersunk to be flush.
*   The main part of the mount should have a thickness that I can define as a variable, let's call it `thickness`. The default value should be 5mm, but I need to be able to easily change this later.
*   It needs to have a vertical section extending upwards, with a length of `mountHeight` which defaults to 150mm. I'd like to be able to adjust this easily in the customizer, too.
*   The vertical section should include a vertical slider for the camera mount.

**Adjustable Slider:**
*   The slider should have a slot, not just a hole for the camera mount. The slot should be `sliderLength` long, with a default of 50mm. The width of the slot should be slightly larger than a camera mounting bolt, so around 6.6mm.
*   The slider should be able to move freely up and down the vertical section of the VESA mount.

**Ball and Socket Mount:**
*   I need a ball-and-socket joint that connects to the slider. The diameter of the ball should be a variable called `ballSize`, defaulting to 20mm, with a small amount of slop for smooth movement, probably around `ballSlop` = 0.2mm.
*   The socket should include a threaded hole for a 1/4-20 bolt, with the appropriate nut hole on the opposite side.
*   The socket should have a notch to allow me to tighten it with a wrench or pliers.
*   The socket should also have a separate mounting hole for the screw, with the correct hole for an M4 bolt, let's call it `mountHole` with a default of 3.5mm. It will also need a nut pocket for the corresponding M4 nut. Let's call this `mountNut` with a default of 6.5mm.
*   The socket should also have a small ring gap. `ringGap` should be 3mm.
*   The connection between the socket and the slider should have some kind of "neck" that's also part of the slider itself.

**Camera Mount:**
*   The camera mount itself should consist of the ball, and a flat top and a threaded hole for mounting the camera. The hole should be for 1/4-20 bolt and a corresponding nut pocket.

**Parameters:**

*   `vesaSize`: Separation in mm of VESA holes. Default: 100
*   `mountHeight`: How far the mount extends above the screws. Default: 150
*  `mountHole`: Size for the screw on the socket, default 3.5
*   `mountNut`: Size for the nut on the socket, default 6.5
*   `sliderLength`: Length of slot for adjustable height of camera mount, default: 50
*   `thickness`: How thick the general mount should be, default: 5
*   `ballSize`: Diameter of Ball, default 20
*   `ballSlop`: Oversize for socket, default 0.2
*  `part` to choose to print only "vesaMount", "socketSlider" or "cameraMount". Otherwise all parts.

I'd like to be able to generate each part independently, or all parts together for reference. So please organize the code so the user can easily do this. I'd prefer if the files also use the MCAD library for the counter-sunk holes and other shapes. I think the `shapes.scad` part of that library should be sufficient.

[Assistant]
VesaMount_r02.scad:
```
part = "allParts"; // [vesaMount: monitor attachment, socketSlider: sliding socket attachment, cameraMount: camera mounting ball, allParts: everything]

// separation in mm of vesa holes
vesaSize = 100;

// how far the mount extends above the screws
mountHeight = 150;

// size for the screw on the socket
mountHole = 3.5;

// size for the nut on the socket
mountNut = 6.5;

// length of slot for adjustable height of camera mount
sliderLength = 50;

// how thick the general mount should be
thickness = 5;

// Diameter of Ball
ballSize = 20;

// Oversize for Socket
ballSlop = .2;

/* [Hidden] */
$fn=40;
include<MCAD/shapes.scad>
vesaHole = 4.5; // holes for the vesa screws
sliderWidth = vesaHole + 2*thickness;
cameraHole = 6.6; // diameter of hole for camera and slider
cameraNut = 11.3; // size of nut for 1/4-20
ringGap = 3;

if (part == "vesaMount")
{
    translate ([0,0,thickness]) rotate ([0,180,0]) // flip it so countersink is on top
    vesaMount();
}
else if (part == "socketSlider")
{
    socketSlider();
}
else if (part == "cameraMount")
{
    cameraMount();
}
else
{
    translate ([0,0,thickness]) rotate ([0,180,0]) // flip it so countersink is on top
    vesaMount();

    translate ([-2*sliderWidth,5*thickness,0]) socketSlider();
    translate ([2*sliderWidth,5*thickness,0]) cameraMount();
}

module vesaMount()
{
    translate ([0,0,thickness/2])
    difference()
    {
        union()
        {
            // horizontal cross-piece
            hull()
            {
                translate ([-vesaSize/2,0,0]) cylinder(d=vesaHole+thickness, h=thickness, center=true);
                translate ([vesaSize/2,0,0]) cylinder(d=vesaHole+thickness, h=thickness, center=true);
                translate ([0, thickness*2, 0]) cube([sliderWidth,.1,thickness], center=true);
            }

            // vertical slider piece
            hull()
            {
                translate ([0, thickness*2, 0]) cube([sliderWidth,.1,thickness], center=true);
                translate ([0, mountHeight, 0]) cylinder(d=sliderWidth,h=thickness, center=true);
            }
        }
        // vesa holes
        translate ([-vesaSize/2,0,-thickness/2]) counterSunk(vesaHole); // cylinder(d=vesaHole, h=thickness+.1, center=true);
        translate ([vesaSize/2,0,-thickness/2]) counterSunk(vesaHole); // cylinder(d=vesaHole, h=thickness+.1, center=true);

        // slider hole
        hull()
        {
            translate ([0,mountHeight,0]) cylinder(d=cameraHole, h=thickness+.1, center=true);
            translate ([0,mountHeight - sliderLength,0]) cylinder(d=cameraHole, h=thickness+.1,center=true);
        }
    }
}

module socketSlider()
{
    difference()
    {
        union()
        {
            translate([0,-thickness/2, sliderWidth*.75]) cube([sliderWidth + thickness + 1, thickness, sliderWidth*1.5], center=true);

            // slider tabs
            translate([-(sliderWidth/2+thickness/4+.5),0,sliderWidth*.75]) cube([thickness/2, thickness*2, sliderWidth*1.5], center=true);
            translate([(sliderWidth/2+thickness/4+.5),0,sliderWidth*.75]) cube([thickness/2, thickness*2, sliderWidth*1.5], center=true);

            // socket mount
            translate([0,-(thickness+ballSize/2),sliderWidth * 2])
            union()
            {
                rotate([25,0,0])
                difference()
                {
                    // ring for mount
                    hull()
                    {
                        sphere(d=ballSize+thickness+ballSlop);
                        //cylinder(d=ballSize+thickness+ballSlop, h=2*thickness, center=true);
                        translate([(ballSize/2 + ballSlop + mountHole), 0, 0]) rotate([90,0,0]) cylinder(d=mountHole+thickness, h=ringGap + 2*thickness, center=true);
                    }
                    // remove top
                    translate([0,0,(ballSize/2+thickness*.75)]) cube([100,100,ballSize], center=true);

                    // notch for tightening
                    translate([ballSize,0,0]) cube([2*ballSize, ringGap, ballSize], center=true);
                    // holes for mounting
                    translate([(ballSize/2 + ballSlop + mountHole), 0, 0]) rotate([90,0,0]) cylinder(d=mountHole, h=100, center=true);
                    // nut hole
                    translate([(ballSize/2 + ballSlop + mountHole), ringGap/2+thickness, 0]) rotate([90,90,0]) nutHole(mountHole,mountNut);
                    // surface for screw
                    translate([(ballSize/2 + ballSlop + mountHole), -(ringGap/2+thickness*1.5), 0]) rotate([90,0,0]) cylinder(d=mountHole+thickness,h=thickness,center=true);
                    // slight bevel of upper lip
                    translate([0,0,ballSize*.55]) sphere(d=ballSize+thickness+ballSlop);
                }
            }

            // socket neck
            hull()
            {
                translate([0,-thickness/2, sliderWidth*.75]) cube([sliderWidth + thickness + 1, thickness, sliderWidth*1.5], center=true);
                translate([0,-(thickness+ballSize/2),sliderWidth*2 - ballSize*.25]) sphere(d=ballSize*.6,$fn=10);
            }
        }
        // remove ball for socket
        translate([0,-(thickness+ballSize/2),sliderWidth * 2]) sphere(d=ballSize + ballSlop, $fn=30);

        // nut hole for mounting
        translate ([0,-thickness,cameraNut/2+thickness]) rotate([-90,90,0]) nutHole(cameraHole,cameraNut);
        // make the hole go all the way through
        translate ([0,-thickness,cameraNut/2+thickness]) rotate([-90,90,0]) cylinder(d=cameraHole,h=thickness);
    }

}

module cameraMount()
{
    difference()
    {
        union()
        {
            // ball
            translate([0,0,ballSize*.35]) sphere (d=ballSize, $fn=40);
            cylinder (d=cameraHole+thickness,h=ballSize*.85);
        }
        // remove nut hole
        translate([0,0,ballSize*.35]) nutHole(cameraHole,cameraNut);
        // make a flat bottom
        translate([0,0,-ballSize/2]) cube([ballSize,ballSize,ballSize], center=true);
    }
}

module nutHole(holeSize = mountHole,nutSize = mountNut)
{
    translate([0,0,-10])
	hexagon(nutSize,22);
	translate([0,0,1.3]) // deliberately creating solid material for printing
	cylinder(d=holeSize, h=100);
}

module counterSunk(holeSize = mountHole)
{
    hull()
    {
        translate([0,0,-1]) cylinder(d=holeSize*2,h=2,center=true);
        translate([0,0,holeSize/2]) cylinder(d=holeSize,h=.1,center=true);
    }
    cylinder(d=holeSize,h=10);
}
```


[User]
Hey, I'm looking to design a Raspberry Pi case top with a mount for a 40mm fan, and some extra mounting holes. I want it to be parametric, so I can easily adjust dimensions later.

Specifically, I need a design that starts with a base plate shaped like the Raspberry Pi 2 top from the `rpi2-top_30mm-fan_netfabb.stl` file. I need a way to import this STL as part of my design using OpenSCAD.

Then, on top of that base, I want a cylindrical fan mounting area. This cylinder should be centered on top of the imported plate, have a diameter of 40mm, and be 2mm tall. I would like this to be parametric so I can adjust the height and diameter.

Next, there should be four mounting holes for the 40mm fan, arranged in a square pattern with a radius of 16mm from the center of the fan mount. These holes should be 2.7mm in diameter and also be parametric. I would like these mounting holes to extend through the base plate for mounting purposes with a total length of 10mm.

I would also like a circular cutout in the middle of those four mounting holes. This cylinder should have a diameter of 30mm, a height of 6mm. The cutout will extend past the base plate and also be parametric.

Finally, I need three more mounting holes, in a line, 30mm from the center of the fan mount. One centered on the Y-axis and two on either side. These should also be 2.7mm in diameter with a height of 6mm so that accessories can be mounted. These holes, their diameter and position relative to the fan cylinder should also be parametric.

Could you generate an OpenSCAD design for this? I think we might need to use the `import()` function and I would like to use `difference()` , `union()` and `translate()` functions, and `cylinder()` primitives.

[Assistant]
rpi-top_40mm-fan_mauro.scad:
```
difference() {
	union() {
		translate([-37,-34,0]) import("rpi2-top_30mm-fan_netfabb.stl");
		translate([0,0,1]) cylinder(r=20,h=2,$fn=96,center=true);

	}
	union() {
		translate([0,-2.5,0]) union() {
			translate([16,16,0]) cylinder(r=1.35,h=10,$fn=96,center=true);
			translate([-16,16,0]) cylinder(r=1.35,h=10,$fn=96,center=true);
			translate([16,-16,0]) cylinder(r=1.35,h=10,$fn=96,center=true);
			translate([-16,-16,0]) cylinder(r=1.35,h=10,$fn=96,center=true);

			translate([0,0,0]) cylinder(r=15,h=6,$fn=96,center=true);

		}

		translate([0,30,0]) cylinder(r=1.35,h=6,$fn=96,center=true);
		translate([15,30,0]) cylinder(r=1.35,h=6,$fn=96,center=true);
		translate([-15,30,0]) cylinder(r=1.35,h=6,$fn=96,center=true);
	}
}
```


[User]
I'm looking to create a parametric fin alignment jig for model rockets, similar to what's described in the existing SCAD code I've seen. I want a jig that will help me accurately glue fins onto a rocket body tube. Here's a breakdown of what I need, with a focus on keeping things adjustable:

1.  **Tube Diameter:** The inner diameter of the jig needs to be adjustable to fit the outer diameter of the rocket body tube. I need a `tube_diameter` variable for this, which will be in millimeters.

2.  **Flange:** The jig should have a flange at the bottom. The thickness of this flange should also be adjustable using a `flange_thickness` variable (in mm).

3.  **Fin Width:** I need to be able to define the thickness of the fins I'm using with a `fin_width` variable (in mm). This will determine the width of the slots in the jig.

4.  **Number of Fins:** The jig should be able to handle different numbers of fins, which should be controlled by a `fin_number` variable.

5.  **Jig Height:** The overall height of the jig should be adjustable with a `jig_height` variable (in mm). This allows for use with longer fins.

6.  **Fin Span:** I need to define how far out the fins extend from the body tube with the `jig_fin_width` variable (in mm).

7.  **Wall Thickness:** The thickness of the material around the tube and fin slots needs to be adjustable through a `wall_thickness` variable (in mm).

8. **Glue Clearance:** There should be a small gap between the jig and the tube so that the glue doesn’t bond to the jig, which I'd like controlled with a `glue_clearance` variable (in mm).

The jig should consist of a cylinder to hold the tube with cutouts for the fins, as well as a bottom flange to help keep everything perpendicular and square. For each fin slot, there should be a corresponding inner cylinder, offset from the center, to create the glue gap. The fin cutouts should extend up to the top of the jig. Also, make the outer part of the fin holders slightly longer to help hold the fins in place.

I think I need a single SCAD file for this, and I don't think I'll need any libraries. Please make sure all variables are clearly commented in the code.

[Assistant]
Parametric_Fin_Jig.scad:
```
//            *********************************************
//            *  Fin Alignment Tools for Model Rockets    *
//            *  Blair Thompson (aka Justblair)           *
//            *  www.justblair.co.uk                      *
//            *  modified by Doug Cullen aka dcullen      *
//            *  15 Apr 2016                              *
//            *********************************************

// Parametric
tube_diameter  = 24.8  ;// mm measured tube outer diameter
flange_thickness = 2   ;// mm thickness of lower flange around tube
fin_width      =  2.64 ;// mm measured fin width
fin_number     =  4    ;// Number of fins
jig_height     = 30    ;// mm height of jig
jig_fin_width  = 38    ;// mm Fin span
wall_thickness =  4    ;// mm desired wall thickness
glue_clearance =  4    ;// mm inner gap to prevent glue sticking to jig
$fn            =150    ; // Changes the smoothness of the curves

difference(){
  // Create the solid shapes
       union(){
         cylinder (r = (tube_diameter/2) + 10, h = flange_thickness);
         cylinder (r = (tube_diameter/2) + wall_thickness, h =jig_height);
            for (i = [0:fin_number - 1]){
// Fin holders
     rotate( i * 360 / fin_number, [0, 0, 1])
     translate (-[(fin_width + wall_thickness * 2) / 2, 0, 0])
     cube([fin_width + wall_thickness * 2, jig_fin_width + tube_diameter/2,jig_height]);

// End Ties
     rotate( i * 360 / fin_number, [0, 0, 1])
     translate ([-(fin_width + wall_thickness * 2) / 2, 0, 0])
     cube([fin_width + wall_thickness * 2, jig_fin_width + tube_diameter/2 + wall_thickness, 4]);

// Inner gap
    rotate( i * 360 / fin_number, [0, 0, 1])
    translate ([0, tube_diameter/2, 0])
    cylinder (r = glue_clearance + wall_thickness, h =jig_height);
              }
     }

// Create the cutout shapes

// Rocket tube body
      translate ([0,0,-0.5])
      cylinder (r=tube_diameter/2, h = jig_height + 1);
           for (i = [0:fin_number - 1]){

// Fin cutouts
     rotate( i * 360 / fin_number, [0, 0, 1])
     translate ([-fin_width/2, 0, -0.5])
     cube([fin_width, jig_fin_width + tube_diameter/2, jig_height + 1]);

// Inner gap
     rotate( i * 360 / fin_number, [0, 0, 1])
     translate ([0, tube_diameter/2, -0.5])
     cylinder (r = glue_clearance, h = jig_height + 1);
           }
   }

```


[User]
I'm looking for an OpenSCAD design for a customizable linear bearing. I need to be able to adjust the internal and external diameters, the overall length, and the depth, width, and offset of the retaining rings. I also need to be able to control the number of internal grooves, as well as their depth and width.

Ideally, the design should be fully parametric so I can easily tweak these values. I'm thinking it would be helpful to have separate modules for the main bearing shape, the retainer ring grooves, and the internal grooves. I want the main bearing to have a hull to create a chamfer at each end. I want the internal grooves to be cut along the length of the cylinder, not around it. I also want the internal grooves to start at the internal diameter of the bearing, and to have a rectangular cross section. I'd like it if the retaining ring grooves were cut into the external surface of the bearing, not as a separate module being added to the overall shape.

I'd like to keep it relatively simple, I'm not really looking for a highly optimized or complex design, just something functional that I can easily customize.

I'm not sure about any external libraries needed here other than the standard OpenSCAD functions, so I'll leave that up to you.

[Assistant]
Linear_Bearing_customizer.scad:
```
// Open SCAD model of any linear bearing

/* [General Dimensions] */

internal_diameter =  8.0;  // Internal diameter
external_diameter = 15.0;  // External diameter
length     = 24.0;  // Length

/* [Retainer Rings] */

retainer_rings_depth   = 0.7;  // Retainer ring depth
retainer_rings_width     =  1.1;  // Retainer ring width
retainer_rings_offset     = 17.5;  // Retainer ring offset

/* [Inner Grooves] */

groove_depth = 1.6;  // Groove depth
groove_width = 1.2;    // Groove width
groove_count = 12;    // Groove count

/* [Hidden] */

$fn = 64;

module groove(d1, d2, w) {
	difference() {
		cylinder(r=d1/2+1, h=w, center=true);
		cylinder(r=d2/2  , h=w, center=true);
	}
}

module lb(internal_diameter=8, external_diameter=15, retainer_rings_depth=0.7, length=24, retainer_ringroove_widthidth=1.1, retainer_rings_offset=17.5) {
    chamf = retainer_rings_depth;
    RR_d = external_diameter - retainer_rings_depth;
	difference() {
		hull() {
			cylinder(r=external_diameter/2, h=length-chamf, center=true);
			cylinder(r=RR_d/2, h=length     , center=true);
		}
		cylinder(r=internal_diameter/2, h=length+2    , center=true);
        cylinder(r = internal_diameter/ 2, h=length+20, $fn=256, center=true);
		translate([0, 0, retainer_rings_offset/2-retainer_rings_width/2]) groove(external_diameter, RR_d, retainer_rings_width);
		translate([0, 0,-retainer_rings_offset/2+retainer_rings_width/2]) groove(external_diameter, RR_d, retainer_rings_width);

        for (i = [0:groove_count]) assign( grooveAngle=(i+1)*360/groove_count) {
            rotate(90-grooveAngle) translate([0,-(groove_width/2),-((length+retainer_rings_width)/2)])
            cube(size=[(internal_diameter/2)+groove_depth, groove_width, length+retainer_rings_width], center=false);
        }

	}

}

translate([0,0,length/2]) lb(internal_diameter, external_diameter, retainer_rings_depth, length, retainer_ringroove_widthidth, retainer_rings_offset);

```


[User]
Hi! I need some help designing a parametric box for my IPEVO Ziggi-HD Plus USB camera. I've got some measurements and parameters here, and I'd really like to make this easily adjustable for future changes or if I get a similar camera.

The current design is a two-part box, with a bottom and a lid. The lid is attached to the bottom with hinges on both sides. I need the ability to turn the printing of the top and bottom on or off, as well as an option to print the top in place or off to the side, and a display option.

Here are the key dimensions:

*   **Camera Dimensions (Internal):**
    *   `bCam_front` = 40mm
    *   `bCam_back` = 17mm
    *   `bCam_socket` = 81mm
    *   `lCam_front` = 30mm
    *   `lCam_back` = 30mm
    *   `lCam_socket` = 175mm

*   **Box Parameters:**
    *   `wall` thickness = 6mm
    *   `floor` thickness = 3mm
    *   `topHeight` = 30mm
    *   `botHeight` = 20mm

*   **Grip Modifiers:**
    *   `grLenTune` (grip length multiplier) - default 1.0
    *   `grHeiTune` (grip height multiplier) - default 1.0

*   **Magnet Parameters:**
    *   `maLength` = 5.5mm
    *   `maWidth` = 5.5mm
    *   `maHeight` = 5.5mm
    *   `maSpacer` = 1mm

*   **Hinge Parameters:**
    *   `hiHeight` (hinge pin z position) - default 0mm (relative to bottom)
    *   `hiLength` (hinge length) - calculated as `length/12` where length is based on camera dimensions.
    *   `hiOffs` (hinge position) - calculated as `length/4`
    *   `hiDia` (hinge pin cutout diameter) = 3.5mm
    *   `hiDiaDepth` (hinge pin depth) = `hiOffs + hiLength`
	*   `hiHingSpac` - calculated as `hiLength/20`

*   **Other:**
    *   `CHAMFEREDGES` (on/off) = default off (0)
    *   `CHAMFERLEN` = 3mm

Here's what I need it to do:

1.  **Parametric Design:** All dimensions should be variables at the start of the file.
2.  **Box Construction:** Create the two parts of the box: a bottom and a lid that fits snugly. Use a Minkowski sum for the outer shape, and a linear extrude for the inner space. The shape of the base for the extrude is derived from a polygon specified by the camera dimensions.
3.  **Hinges:** Create two hinges (left and right) that connect the top and bottom. The hinges should have a cutout for a hinge pin.
4.  **Grip:** Include a recessed grip on both the top and bottom of the box (use a scaled sphere).
5.  **Magnet Cutouts:** Include cutouts for small magnets on both sides of the lid and the bottom to keep the box closed.
6.  **Chamfered Edges (optional):** A variable to turn on chamfered edges on both the top and bottom if needed.
7.  **Printing Options:**
    *   `PRINTBOT`: Turn on/off the printing of the bottom part.
    *   `PRINTTOP`: Turn on/off the printing of the top part.
    *   `PRINTPOS`: Print the top in place on the bottom or off to the side.
    *   `SHOWOFFPOS`: Option for a nice looking display position of the lid (only when `PRINTPOS` is off).
8.  **Libraries:** Please don't use any external libraries. Just plain OpenSCAD code will be great!

The tricky thing is that I've noticed the lid is currently too high compared to the bottom, and it ends up scratching the camera a bit. So, we might need to adjust the `topHeight` and `botHeight` ratio or something similar, but I’d like to see what we get first.

Could you generate an OpenSCAD file (or files) based on these parameters? Thanks!

[Assistant]
Cambox_20160415.scad:
```
// Camera-Box: "IPEVO Ziggi-HD Plus USB"
// Author: Chr. Schmitz
// Version: 0.1.2
// Date: 15.04.2016
// License: http://creativecommons.org/licenses/by/3.0/

//================================================================================
// TODO:
//  - THE LID IS TOO HIGH (EVEN HIGHER THAN THE BOTTOM).
// 	HENCE IT SCRATCHES SLIGHTLY THE CAMERA. CHANGE THE LID-BOTTOM-RATIO.
//================================================================================

// Version History:
//  - V0.2.2: changed comments
//  - V0.2.1: Adapted PENCIL BOX to a print bed of 200x200mm by cutting the edges
// based on:
// PARAMETRIC PENCIL BOX, V1.2
// FMMT666(ASkr) 04/2013, 05/2013
// http://creativecommons.org/licenses/by/3.0/

// - changes V1.2:
//  - added missing grip-size modifiers
//
// - changes V1.1:
//  - added variable hinge length:
//    "hiHeight" now specifies the height of the hinge pin, relative to the bottom.

// HINTS:
// - Always start with hiHeight set to 0.
//   If this parameter is larger than "botHeight", things might look strange ;)

// ===============================================================================
// choose parts to print
PRINTBOT =       1;                // 0/1 turn bottom part off/on
PRINTTOP =       1;                // 0/1 turn top part (lid) off/on
PRINTPOS =       0;                // 0/1 move lid in printing position
SHOWOFFPOS =     1;                // 0/1 nice looking off/on; ONLY IF PRINTPOS=0

// ===============================================================================
// box parameters
bCam_front = 		40;
bCam_back = 		17;
bCam_socket = 		81;
lCam_front = 		30;//79;
lCam_back = 		30;
lCam_socket = 	  175;//126;
wall =           6.0;              // thickness of the walls
floor =          3.0;              // thickness of the floor and "roof"

topHeight =     30.0;              // height of the lid
botHeight =     20.0;              // height of bottom box part

// ===============================================================================
length = 2*wall+lCam_front+lCam_socket+lCam_back;	// length of the box
width = 2*wall+bCam_socket;           				   // width of the box
// ===============================================================================
// grip modifiers
grLenTune =      1.0;              // grip-length-multiplier (default: 1.0)
grHeiTune =      1.0;              // grip-height-multiplier (default: 1.0)

// ===============================================================================
// magnet parameters
maLength =       5.5;              // length of the magnet cutout (x axis)
maWidth =        5.5;              // depth of the magnet cutout (y axis)
maHeight =       5.5;              // height of the magnet cuout (z axis)
maSpacer =       1.0;              // thickness of material around magnet

// ===============================================================================
// hinge parameters (usually no change required)
hiHeight =       0.0;              // z pos of hinge (0.0 = lowest possible)
hiLength =      length/12;         // length of the hinge
hiOffs =        length/4;          // position of the hinge
hiDia =          3.5;              // diameter of the hinge pin cutout
hiDiaDepth =    hiOffs+hiLength;   // drill depth of the hinge pin
hiHingSpac =    hiLength/20;       // additional space to make it move freely

// ===============================================================================
// additional parameters
CHAMFEREDGES =   0;                // 0/1 chamfer edges off/on
CHAMFERLEN =     3.0;              // chamfer length

// ===============================================================================
// ===============================================================================
// ===============================================================================
// NO CHANGES BELOW HERE
CYLPREC = 100;

// ===============================================================================
// === BOX BOTTOM

if( PRINTBOT )
  BoxBottom();

// ===============================================================================
// === BOX TOP
if( PRINTTOP )
{
  if( PRINTPOS )
  {
    translate( [0, width, botHeight + topHeight ] )
    rotate( [180, 0, 0] )
    BoxTop();
  }
  else
    if( SHOWOFFPOS )
    {
      translate( [ 0, width+floor-wall, +floor+wall/2 + hiHeight ] )
        rotate( [-45,0,0] )
          translate( [ 0, -width-floor+wall, -floor-wall/2-hiHeight ] )
            BoxTop();
    }
	else
      BoxTop();
}

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

// ===============================================================================
// === IDIOT BOX (if none of the box parts was selected)
if( !PRINTTOP && !PRINTBOT )
  cube([10,10,10]);

// ===============================================================================
// === BOX BOTTOM
module BoxBottom()
{
  difference()
  {
    // === THE BOX
	 translate([wall,wall,0])
	   minkowski()
      {
	     linear_extrude(height=botHeight-1)
			 polygon([[lCam_front,0],[lCam_front+lCam_socket,0],
			 [lCam_front+lCam_socket+lCam_back,(bCam_socket-bCam_back)/2],
			 [lCam_front+lCam_socket+lCam_back,(bCam_socket-bCam_back)/2+bCam_back],
			 [lCam_front+lCam_socket,bCam_socket],[lCam_front,bCam_socket],
			 [0,((bCam_socket-bCam_front)/2+bCam_front)],[0,(bCam_socket-bCam_front)/2]]);
		  cylinder(r=wall,h=1);
	   }
  	 translate([wall,wall,floor])
	   linear_extrude(height=botHeight-floor+1)
		  polygon([[lCam_front,0],[lCam_front+lCam_socket,0],
		  [lCam_front+lCam_socket+lCam_back,(bCam_socket-bCam_back)/2],
		  [lCam_front+lCam_socket+lCam_back,(bCam_socket-bCam_back)/2+bCam_back],
		  [lCam_front+lCam_socket,bCam_socket],[lCam_front,bCam_socket],
		  [0,((bCam_socket-bCam_front)/2+bCam_front)],[0,(bCam_socket-bCam_front)/2]]);

    // === LEFT HINGE CUTOUT
    translate( [ hiOffs - hiLength/2, width - 1.5*wall, floor + hiHeight ] )
      cube( [ hiLength, 2*wall, botHeight - floor/2 ] );

    // === RIGHT HINGE CUTOUT
    translate( [ length - hiOffs - hiLength/2, width - 1.5*wall, floor+hiHeight ] )
      cube( [ hiLength, 2*wall, botHeight - floor/2 ] );

    // === LEFT HINGE PIN CUTOUT
    translate( [ -1, width - wall/2, floor+wall/2+hiHeight ] )
    rotate( [ 0, 90 ,0 ] )
      cylinder( r=hiDia/2, h=hiDiaDepth+1, $fn=CYLPREC );

    // === RIGHT HINGE PIN CUTOUT
    translate( [ length - hiDiaDepth + 1, width - wall/2, floor+wall/2+hiHeight ] )
    rotate( [ 0, 90 ,0 ] )
      cylinder( r=hiDia/2, h=hiDiaDepth+1, $fn=CYLPREC );

    // === RECESSED GRIP CUTOUT
    RecessedGrip();

    // === LEFT MAGNET CUTOUT
    translate([hiOffs-maLength/2, wall - maWidth, botHeight - maHeight - maSpacer])
      cube( [ maLength, maWidth+1, maHeight ] );

    // === RIGHT MAGNET CUTOUT
    translate([length-hiOffs-maLength/2,wall-maWidth, botHeight-maHeight-maSpacer])
      cube( [ maLength, maWidth+1, maHeight ] );

    // === CHAMFERED EDGES
    if( CHAMFEREDGES )
      ChamferedEdges();

  } // END difference
}

// ===============================================================================
// === BOX TOP
module BoxTop()
{
  union()
  {
    difference()
    {
      // === THE BOX
     	translate([wall,wall,botHeight])
		  minkowski()
  		  {
		    linear_extrude(height=topHeight-1)
			   polygon([[lCam_front,0],[lCam_front+lCam_socket,0],
				[lCam_front+lCam_socket+lCam_back,(bCam_socket-bCam_back)/2],
				[lCam_front+lCam_socket+lCam_back,(bCam_socket-bCam_back)/2+bCam_back],
				[lCam_front+lCam_socket,bCam_socket],[lCam_front,bCam_socket],
				[0,((bCam_socket-bCam_front)/2+bCam_front)],[0,(bCam_socket-bCam_front)/2]]);
			 cylinder(r=wall,h=1);
		  }
	   translate([wall,wall,botHeight-1])
		  linear_extrude(height=topHeight-floor+1)
			 polygon([[lCam_front,0],[lCam_front+lCam_socket,0],
			 [lCam_front+lCam_socket+lCam_back,(bCam_socket-bCam_back)/2],
			 [lCam_front+lCam_socket+lCam_back,(bCam_socket-bCam_back)/2+bCam_back],
			 [lCam_front+lCam_socket,bCam_socket],[lCam_front,bCam_socket],
			 [0,((bCam_socket-bCam_front)/2+bCam_front)],[0,(bCam_socket-bCam_front)/2]]);

      // === RECESSED GRIP CUTOUT
      RecessedGrip();

      // === LEFT MAGNET CUTOUT
      translate([hiOffs-maLength/2, wall - maWidth, botHeight+maSpacer])
        cube( [ maLength, maWidth+1, maHeight ] );

      // === RIGHT MAGNET CUTOUT
      translate([length-hiOffs-maLength/2,wall-maWidth,botHeight+maSpacer])
        cube( [ maLength, maWidth+1, maHeight ] );

      // === CHAMFERED EDGES
      translate([0,0,botHeight+topHeight])
        mirror([0,0,1])
          ChamferedEdges();
    }

    // === LEFT HINGE
    LeftHinge();

    // === RIGHT HINGE
    translate( [ length - 2*hiOffs, 0, 0 ] )
      LeftHinge();
  } // END union
}

// ===============================================================================
// === HINGE
module LeftHinge()
{
  difference()
  {
    union()
    {
      translate([hiOffs-hiLength/2+hiHingSpac,width-wall,floor+0.5*wall+hiHeight])
        cube([hiLength-2*hiHingSpac, wall, botHeight-floor-0.5*wall-hiHeight ] );
      translate([hiOffs-hiLength/2+hiHingSpac,width-wall/2,floor+0.5*wall+hiHeight])
        rotate( [0,90,0] )
          cylinder( r = wall/2, h = hiLength - 2*hiHingSpac, $fn=CYLPREC );
    }

    // === LEFT HINGE PIN CUTOUT
    translate( [ -1, width - wall/2, floor+wall/2+hiHeight ] )
    rotate( [ 0, 90 ,0 ] )
      cylinder( r=hiDia/2, h=hiDiaDepth+1, $fn=CYLPREC );

  } // END difference
} // END LeftHinge

// ===============================================================================
// === RECESSED GRIP CUTOUT
module RecessedGrip()
{
  // === RECESSED GRIP
  translate( [ length/2, -wall/3, botHeight ] )
    scale( [ grLenTune*2*topHeight, wall , grHeiTune*topHeight/1.5] )
      sphere( r = 1, $fn=CYLPREC );

}

// ===============================================================================
// === CHAMFERED EDGES
module ChamferedEdges()
{
  // === FRONT CUT
  translate([0,0,CHAMFERLEN])
  rotate([-45,0,0])
    translate([-1,-length/2,-2*CHAMFERLEN])
      cube([length+2,length,2*CHAMFERLEN]);

  // === REAR CUT
  translate([0,width,CHAMFERLEN])
  rotate([45,0,0])
    translate([-1,-length/2,-2*CHAMFERLEN])
      cube([length+2,length,2*CHAMFERLEN]);

  // === LEFT CUT
  translate( [ 0, 0, CHAMFERLEN ] )
    rotate( [0,45,0] )
    translate( [ -width / 2, -1, -2 * CHAMFERLEN ] )
      cube([width,2+width,2*CHAMFERLEN]);

  // ===RIGHT CUT
  translate( [ length, 0, CHAMFERLEN ] )
  rotate( [0,-45,0] )
  translate( [ -width / 2, -1, -2 * CHAMFERLEN ] )
    cube([width,2+width,2*CHAMFERLEN]);

}

```


[User]
Hey, I'm looking to create a customizable ball joint system in OpenSCAD, similar to what's described in that Thingiverse link for the Loc-Line. I need to be able to adjust pretty much every aspect of it, so I'm hoping you can help me generate some parametric SCAD files.

Basically, I need three main parts: a "male" ball end, a "female" socket, and a "segment" that combines the ball and socket to make articulated arms. I want to be able to control the size of the ball, the radius of the base cylinder on the male end, the height of that base, and whether that base is extruded or differentiated in the socket design.

For the socket, I need to control the joint spacing, the thickness of the "arms" that grab the ball, how many arms there are, their length relative to the overall size of the socket, the width of each of the arms. I'd also like to be able to adjust the lock ratio (how much of the sphere is removed for the lock) and have a helper angle feature on the socket cut out - with an adjustable height. It would be great if I could also add a hole through the center of the parts for wiring or something - with an adjustable radius. It would be very important that I can decide if the base should be extruded as a separate part, or if it should be differentiated from the socket itself.

The "segment" part should effectively be one "female" socket and one "male" ball end connected together. I want to use all the parameters of the "female" socket within the segment as well as the parameters of the "male" ball.

Finally, it would be cool if I could have a demo module that links together multiple segments in a row. Each segment should be a different color. It should rotate. I'd also like to be able to set the initial number of segments, as well as their size.

I don't want to assume you'll be using any external libraries. Everything should be written from the ground up with functions, modules and user-set parameters. So no MCAD, BOSL, etc. I do need to be able to control the `$fa` and `$fs` variables.

I think that covers it all. Let me know if you have any questions. Thanks!

[Assistant]
ballJoint.scad:
```
// Ball joint in SCAD by Erik de Bruijn
// Based on a design by Makerblock ( http://makerblock.com/2010/03/blender-help/ )
// Improved by Alejandro Medrano

//Part selection
part = "Demo"; //[Demo, Male, Female, Segment]
// for Demo fun
Demo_size=7;
// size of the ball joint
size=10;
 // some space between them?
joint_spacing =0.1;
// thickness of the arms
joint_thickness = 2;
// how many arms do you want?
joint_arms = 3;
// how much is removed from the arms Larger values will remove more
arm_width = 5;
// relative length of arms (0 = no arms, 1 = full length arms)
joint_arms_lenght_ratio= 0.66;
// base radius
baser=5;
// base height, only applies for Male part
baseh=1;
//indicate if base should be extruded, or differenciated in joint.
base_invert= false;
// ratio of cut out joint, in order for it to work < 0.5
lock_ratio= 0.3;
// adding a helper angle in joint, 0 to disable
lock_help_h= 3;
// radius for hollowed part, 0 to disable
hole_r = 4;

/* [Hidden] */
//render settings
$fs=0.8; // def 1, 0.2 is high res
$fa=4;//def 12, 3 is very nice

if (part == "Demo"){
    demo(true,Demo_size);
}
if (part == "Male"){
    hollow() ball();
}
if (part == "Female"){
    hollow() joint();
}
if (part == "Segment"){
    hollow() segment();
}

module demo(init=true, nSegments=7)
{
    //colours = ["black","white"];
    colours = ["Red","Orange","Yellow","Green","Blue","Indigo","Violet"];
    if (init){
    color(colours[nSegments%len(colours)])
        hollow() ball();
        rotate([sin($t*720)*28,cos($t*360*4)*28,cos($t*360*2)*20])
            demo(false,nSegments-1);
    }
    else if (nSegments == 0){

    color(colours[nSegments%len(colours)])
        hollow() joint();
    }
    else {
        outerSphr= size+joint_spacing+joint_thickness;
        interh = sphereHeigth(size,baser);
    color(colours[nSegments%len(colours)])
        hollow()
            segment();
        translate([0,0,outerSphr+size-interh-sphereHeigth(outerSphr,baser)])
        rotate([sin($t*720)*28,cos($t*360*4)*28,cos($t*360*2)*20])
            demo(init,nSegments-1);
    }
}

module ball(size=size, baser=baser, baseh=baseh)
{
	sphere(r=size);
	translate([0,0,-size])
        cylinder(r2=sphereIntersection(size,baseh),r1=baser,h=baseh);
	translate([0,0,-size-baseh]) cylinder(r=baser,h=baseh);
}

function sphereIntersection(r,h) = sqrt(2*h*r-h*h);
function sphereHeigth(r1,r2) = r1- sqrt(r1*r1-r2*r2);

module joint(
    size=size, // inner ball radius
    baser=baser, // base radius
    base_invert= base_invert, //indicate if base should be extruded, or differenciated.
    lock_ratio= lock_ratio, // locking ratio, to work < 0.5
    lock_help_h= lock_help_h, // the height of the helper angle, 0 to disable
    joint_spacing = joint_spacing, // some space between them?
    joint_thickness = joint_thickness, // thickness of the arms
    joint_arms = joint_arms, // how many arms do you want?
    joint_arms_lenght_ratio=joint_arms_lenght_ratio, // relative length of arms
    arm_width = arm_width // inter-arm  space
)
{
    outerSphr= size+joint_spacing+joint_thickness;
    cutH=outerSphr*2*lock_ratio;
difference()
{
	sphere(r=outerSphr);
	sphere(r=size+joint_spacing);
	//bottom cut
    translate([0,0,-outerSphr])
        cylinder(r=sphereIntersection(outerSphr, cutH), h=cutH);
    // lock helper
    translate([0,0,-outerSphr + cutH])
        cylinder(
            r1=sphereIntersection(outerSphr, cutH),
            r2=sphereIntersection(size+joint_spacing,cutH-joint_spacing-joint_thickness+lock_help_h), h=lock_help_h);

    //arms
    for(a=[0:360/joint_arms:360])
	{
		rotate([0,0,a]) translate([-arm_width/2,0, -outerSphr - (outerSphr*2-cutH)*(1-joint_arms_lenght_ratio)])
			cube([arm_width,outerSphr,outerSphr*2]);
	}
    if (base_invert){
        //Base
        baseh = sphereHeigth(outerSphr,baser);
            translate([0,0,outerSphr-baseh]) cylinder(r=baser,h=baseh);

    }
}
    if(!base_invert){
        //Base
        baseh = sphereHeigth(outerSphr,baser);
        difference(){
            translate([0,0,outerSphr-baseh]) cylinder(r=baser,h=baseh);
            sphere(r=size+joint_spacing);
        }
    }
}

module segment(
    size=size, // inner ball radius
    baser=baser, // base radius
    lock_ratio= lock_ratio, // locking ratio, to work < 0.5
    lock_help_h= lock_help_h, // the height of the helper angle, 0 to disable
    joint_spacing = joint_spacing, // some space between them?
    joint_thickness = joint_thickness, // thickness of the arms
    joint_arms = joint_arms, // how many arms do you want?
    joint_arms_lenght_ratio=joint_arms_lenght_ratio, // relative length of arms
    arm_width = arm_width // inter-arm  space
)
{
    outerSphr= size+joint_spacing+joint_thickness;
    baseh = sphereHeigth(size,baser);
    union(){
        joint(size,baser,true,lock_ratio, lock_help_h,joint_spacing,joint_thickness, joint_arms, joint_arms_lenght_ratio,arm_width);
        translate([0,0,outerSphr+size-baseh-sphereHeigth(outerSphr,baser)])
            difference(){
                sphere(r=size);
                translate([0,0,-size]) cylinder(r=baser,h=baseh);
            }
        }
}

module hollow(hole_r=hole_r){
    difference(){
        children(0);
        cylinder(r=hole_r,h=1e3,center=true);
    }
}
```


[User]
Okay, I'd like to create a set of parametric rail buttons for model rockets, designed to slide into the slots of aluminum extrusions. I'm currently using 1010 and 1515 profiles, but it would be great to have a manual option for custom extrusions too.

The existing design I have uses a cylindrical button with a top and bottom disk and a middle slot. Inside there's a screw hole and a countersink bevel on the top. I've provided the basic dimensions in the included file, `rail_buttons_rev1.scad`.  Could you make a new version of that, in a parametric OpenSCAD file (or files), that allows me to define the following parameters:

*   **Extrusion Type:** "1010", "1515", or "manual".
*   **Manual Dimensions:**
    *   `man_button_outer_dia`: Outer diameter of the top and bottom disks.
    *   `man_button_inner_dia`: Inner diameter of the middle slot.
    *  `man_thickness`: Thickness of the top and bottom disks.
    *  `man_button_middle`: Height of the middle slot.
    *   `man_screw_size`: Diameter of the screw hole.
*   **General Parameters:**
    *   `tolerance`: A general tolerance value to add or subtract to dimensions. (This should affect all dimensions, such as the outer diameter.)
    *   `screw_clearance`: Additional clearance diameter added to the screw hole, for ease of fit. (This should only affect the screw hole diameter.)
    * `$fn`:  The number of facets for circles.

Also, I'd really appreciate if you could use the BOSL2 library for handling some of the more complex features, if that seems appropriate. I'd like to keep the design as modular as possible, so if it makes sense to break it down into multiple `.scad` files (for example, one for the basic button shape and another for the screw hole and bevel) that would be great!  I'm thinking it would be good to have a function for each of the extrusion types that returns the core `difference` to actually build the part. I think that will help keep things organized.

[Assistant]
rail_buttons_rev1.scad:
```
/******************************************************************************/
/**********                     INFO                                 **********/
/******************************************************************************/
/*
Rail Button 1.0 April 2016
by David Buhler

Rail buttons or guides for model and high power rockets launching from 1010 or
1515 size slot aluminum extrusions. ( https://www.8020.net/ ). These are not as
strong as the delrin or nylon versions but hey you can easily make this yourself.
The 1515 guides are set to use 8-32 screws but could be opened up a bit for
10-32 screws with a 3/16" drill bit.

Use support so the upper disk of the button is supported and straight. This is
the portion that is inserted inside the rail and most critical for fit.
Alternatively you could print these upside down and have the inside rail portion
cleanly built. Your choice. I used three walls (1.2mm) .

Attribution-NonCommercial 3.0 (CC BY-NC 3.0)
http://creativecommons.org/licenses/by-nc/3.0/

*/

/******************************************************************************/
/**********                     Settings                             **********/
/******************************************************************************/
//adjust the follow to meet your needs,  all measurements in mm.

/* [Select Button] */
button_to_make="1515";//[1010,1515,manual]

/* [Manual Button Diameters] */
man_button_outer_dia=11.1;//
man_button_inner_dia=5.8;//
man_thickness=1.9;//
man_button_middle=3.8;//
man_screw_size=3.05;//

/******************************************************************************/
/**********                   Variable Calcs                         **********/
/****                     no need to adjust these                      ********/
/******************************************************************************/
/* [HIDDEN] */
//1010 button,
button_outer_dia=11.1;
button_inner_dia=5.8;
thickness=1.9;
button_middle=3.8;
screw_size=3.05;

//1515 button
button_outer_dia_1515=16;
button_inner_dia_1515=7.6;
thickness_1515=3;
button_middle_1515=6;
screw_size_1515=5;

/******************************************************************************/
/**********                  Make It Happen Stuff                    **********/
/******************************************************************************/
if (button_to_make=="1010"){
    difference(){
        union(){
            cylinder(r=button_outer_dia/2,h=thickness,$fn=40);//bottom disk
            translate([0,0,thickness])
                cylinder (r=button_inner_dia/2,h=button_middle,$fn=40);//middle slot
            translate([0,0,button_middle+thickness])
                cylinder (r=button_outer_dia/2,h=thickness,$fn=40);//top disk
        }
        translate([0,0,-1])
            cylinder (r=screw_size/2,h=50,$fn=40);//screw hole
        translate([0,0,button_middle+thickness])
            cylinder (r1=screw_size/2,r2=screw_size+3,h=button_middle+1,$fn=40);//screw head bevel
    }
}
else if(button_to_make=="1515"){
    difference(){
        union(){
            cylinder(r=button_outer_dia_1515/2,h=thickness_1515,$fn=40);//bottom disk
            translate([0,0,thickness_1515])
                cylinder (r=button_inner_dia_1515/2,h=button_middle_1515,$fn=40);//middle slot
            translate([0,0,button_middle_1515+thickness_1515])
                cylinder (r=button_outer_dia_1515/2,h=thickness_1515,$fn=40);//top disk
        }
        translate([0,0,-1])
            cylinder (r=screw_size_1515/2,h=50,$fn=40);//screw hole
        translate([0,0,button_middle_1515+thickness_1515])
            cylinder (r1=screw_size_1515/2,r2=screw_size_1515+3,h=button_middle_1515+1,$fn=40);//screw head bevel
    }
}
else if(button_to_make=="manual"){
    difference(){
        union(){
            cylinder(r=man_button_outer_dia/2,h=man_thickness,$fn=40);//bottom disk
            translate([0,0,man_thickness])
                cylinder (r=man_button_inner_dia/2,h=man_button_middle,$fn=40);//middle slot
            translate([0,0,man_button_middle+man_thickness])
                cylinder (r=man_button_outer_dia/2,h=man_thickness,$fn=40);//top disk
        }
        translate([0,0,-1])
            cylinder (r=man_screw_size/2,h=50,$fn=40);//screw hole
        translate([0,0,man_button_middle+man_thickness])
            cylinder (r1=man_screw_size/2,r2=man_screw_size+3,h=man_button_middle+1,$fn=40);//screw head bevel
    }
}
/******************************************************************************/
/**********                         Modules                          **********/
/******************************************************************************/

```


[User]
Hey! I'm working on a project for a STEM class where we're building a little fort model, and I could really use some help generating the OpenSCAD code.

Here's what I'm imagining: I want a basic fort structure with walls, a door, and some towers. I'd like the design to be parametric so I can easily tweak the dimensions and shapes later.

Specifically, the base of the fort should have walls that form a rectangle - let's say 50 units by 50 units for now, but I'd like to be able to change that later. There should be a door in one of the walls, and I was thinking a simple rectangle cutout for the door with a cylindrical arch on top for a bit of detail.

I also want four towers. One will be a cylinder with a conical top - a circular tower. One will be a triangle shaped tower (cylinder with triangular cross-section) also with a conical top.  One will be pentagonal also with a conical top. The last tower will be square with a pyramid shaped top. I'd like all of the towers to have separate height parameters and their base diameters to be 10 units diameter, with the conical/pyramid tops going 15 units above the towers and tapering to a point.

Could you help me generate the OpenSCAD files for this? I'd really appreciate it. Oh, and I don't have any libraries or extra things I'd expect you to use except maybe the basic OpenSCAD built-in functions.

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

circularTowerHeight=30;
squareTowerHeight=30;//[20:50]
triangleTowerHeight=30;//[20:50]
pentagonTowerHeight=30;//[20:50]

/* [Hidden] */

//wall
cube([2,50,20]);

translate([50,5,0])
	cube([2,47,20]);

translate([5,50,0])
	cube([47,2,20]);

//door
difference()
{
cube([50,2,20]);
	translate([20,0,0])
		cube([10,2,10]);

	translate([25,2.5,10])
		rotate([90,0,0])
			cylinder(r1=5,r2=5,h=4,$fn=0);
}

//circle tower
translate([50,2.5,0])
{
	cylinder(r1=5,r2=5,h=circularTowerHeight,$fn=0);
	translate([0,0,circularTowerHeight])
		cylinder(r1=5,r2=0,h=15,$fn=0);
}

// triangleTower
translate([2.5,50,0])
{
	rotate([0,0,10])
	cylinder(r1=5,r2=5,h=triangleTowerHeight,$fn=3);

	rotate([0,0,10])
	translate([0,0,triangleTowerHeight])
	cylinder(r1=5,r2=0,h=15,$fn=3);
}

//pentagontower
translate([50,50,0])
{
	cylinder(r1=5,r2=5,h=pentagonTowerHeight,$fn=5);
	translate([0,0,pentagonTowerHeight])
		cylinder(r1=5,r2=0,h=15,$fn=5);
}

//square tower
{
cube([10,10,squareTowerHeight]);

translate([5,5,squareTowerHeight])
	rotate([0,0,45])
		cylinder(r1=7,r2=0,h=15,$fn=4);
}
```


[User]
I need a parametric OpenSCAD design for a hose adapter, specifically for connecting different sized hoses to 3D-printed water pump parts. I've got some key dimensions that need to be customizable, and the overall design has a few distinct parts that should be easily adjustable.

First, there's the main block that attaches to the pump. This should be a rectangular prism, and I'd like to be able to set the `width`, `length`, and `height`. It also needs a sort of hopper-shaped cutout on one side that tapers down to an inner diameter, which should also be adjustable. I need `hoppper_width` and `hopper_height` to control the size of this hopper, and `inner_diameter` to control the diameter at its narrowest point. There also needs to be a cutout going through the whole base for the hose to pass through, also using the `inner_diameter`.

Next, there's the actual hose mount, which is basically a cylinder with a few features. This will be separate, so it can be adjusted separately, and then positioned in relation to the base part. The main part of the hose mount is a cylinder with a customizable `hose_adapter_length`, `inner_diameter`, and `outer_diameter`. It has a bevel at the end, controlled by `end_bevel_differnce` and `end_bevel_length`. The hose mount also has two rings on the outside of it: one at a specified position with a set height and one above it with a slight bevel. The position of the main ring should be controlled by `postion_of_the_ring`, the height should be controlled by `ring_height`, the diameter should be controlled by `ring_diameter`, and the bevel should be controlled by `ring_bevel_difference` and `ring_bevel_height`.

Finally, there needs to be a small "guide" or extension at the top of the base that the hose mount slides into, which has two cylinders, one to set the inner diameter and one to set the outer diameter. The `hose_mount_guide_factor`, `hose_mount_guide_length`, `hose_mount_wall_thickness_top`, and `hose_mount_wall_thickness_bottom` should control its exact dimensions.

I'd also like to be able to color each of the main components for better visualization while editing, maybe with the color names I gave in the previous file: Cyan for the base, MidnightBlue for the hose mount guide, SkyBlue for the hopper, Indigo for the main cylinder of the hose mount, Purple for the bevel, and Lime for the rings. And then DarkSlateGray for the parts that are being cut out using difference.

Let me know if you need any more information. Thanks!

[Assistant]
PumpHoseAdapter.scad:
```
$fn=50;

/*PumpHoseAdapter by Mattis Männel
This is a hose adapter for pmumps. It was designed for http://www.thingiverse.com/thing:4881 but should be configureable for any size. Unfortunatly you'll have to merge the adapter to the pump manually in 3D-Design software which is able to load STL-file (i can personally recommend Blender for this purposes).
*/

/* [Hose Adapter (Idigo, (and Purple, just for length)] */
hose_adapter_length = 7;
inner_diameter = 3.5;
outer_diameter = 5;

/* [Size] */
width=9;    //9
length=11;   //5
height=5;  //11
hoppper_width=7.8;
hopper_height=10;

/* [Ring of the hose mount (Lime)] */
postion_of_the_ring = 3;
ring_diameter = 6;
ring_height = 1;
ring_bevel_difference = 0.5;
ring_bevel_height = 0.25;

/* [Hose adapters' end bevel (Light Purple)] */
end_bevel_differnce = 0.5;
end_bevel_length = 1;

/* [Hose mount guide (Deep Purple)] */
hose_mount_guide_factor = 1;
hose_mount_guide_length = 1;
hose_mount_wall_thickness_top = 0;
hose_mount_wall_thickness_bottom = 1;

module hoseAdapter()
{
    difference()
    {
        /// Don't forget it's rotated by 90° in x-direction later
        union()
        {
            color("Cyan")translate([0,height/2,0])cube([width,height,length],center=true);
            //hose mount guide
            color("MidnightBlue")translate([0,height,0])rotate([270,0,0])difference()
            {
                cylinder(hose_mount_guide_length,d1=outer_diameter * hose_mount_guide_factor + hose_mount_wall_thickness_bottom, d2=outer_diameter * hose_mount_guide_factor +hose_mount_wall_thickness_top);
                cylinder(hose_mount_guide_length,d=outer_diameter * hose_mount_guide_factor);
            }
        }

        //hopper
        color("SkyBlue")hull()
        {
            //circle(d=10);
            translate([0,height,0])rotate([90,0,0])cylinder(0.01,d=inner_diameter);
            cube([hoppper_width,.1,hopper_height],center=true);
        }
        //cut through the hose mount guide
        color("DarkSlateGray")translate([0,5,0])rotate([-90,0,0])translate([0,0,-1 ])cylinder(length+1,d=inner_diameter);
    }

}

module hoseMount()
{
    difference()
    {
        union()
        {
            color("Indigo")cylinder(hose_adapter_length-end_bevel_length,d=outer_diameter);
            color("Purple")translate([0,0,hose_adapter_length-end_bevel_length])cylinder(end_bevel_length,d1=outer_diameter,d2=outer_diameter-end_bevel_differnce);
            color("Lime")translate([0,0,postion_of_the_ring ])cylinder(ring_height,d=ring_diameter);
            color("Lime")translate([0,0,postion_of_the_ring + ring_height])cylinder(ring_bevel_height,d1=ring_diameter,d2=ring_diameter - ring_bevel_difference);
            color("Lime")translate([0,0,postion_of_the_ring - ring_bevel_height])cylinder(ring_bevel_height,d2=ring_diameter,d1=ring_diameter - ring_bevel_difference);
        }
        color("DarkSlateGray")translate([0,0,-0.4 ])cylinder(hose_adapter_length+1,d=inner_diameter);
    }
}

translate([0,0,height])hoseMount();
rotate([90,0,0])hoseAdapter();

```