[User]
I'm looking for an OpenSCAD design for a customizable knob that fits over a standard hex nut or bolt head. I have a file that I've used before, but I'd like a fresh design that is easily adjustable. Here's what I'm hoping to achieve:

The core of the design is a cylindrical knob. This cylinder needs a hexagonal recess to fit over the nut. I want to be able to control the width (corner to corner) and the thickness of the nut/bolt head that the recess will be sized for.

Around the outside of the knob, I want knurling to provide a good grip. I need to be able to specify the overall diameter and length of the knob, the number of knurls around the circumference, and the depth and width of each knurl. I would also like to be able to control the angle of the knurling.

So, I need to be able to set at least these parameters:
*   `nutWidth`: The width of the nut/bolt head (corner to corner).
*   `nutThickness`: The thickness of the nut/bolt head.
*   `boltKnobDiameter`: The diameter of the knob itself.
*   `boltKnobLength`: The length of the knob.
*   `boltKnobKnurlNum`: The number of knurls.
*   `boltKnobKnurlDepth`: The depth of each knurl.
*   `boltKnobKnurlWidth`: The width of each knurl.
*  `boltKnobKnurlAngle`: The angle of the knurl.

I'd like the design to check that `boltKnobDiameter` is actually larger than `nutWidth`, and if it's not, just output an error message to the console rather than producing a nonsensical shape.

I would like to be sure to include the BOSL library for this design. Could you write the OpenSCAD files (or file) for me?

[Assistant]
boltKnob.scad:
```
/***********************************************************************
Name ......... : boltKnob.scad
Description....: Parametric Hex Bolt/ Hex Nut knob
Author ....... : Garrett Melenka
Version ...... : V1.0 2016/05/09
Licence ...... : GPL
***********************************************************************/

//Width of nut- measure corner to corner distance on nut
nutWidth = 14.75;
//Nut thickness- measure thickness of nut
nutThickness = 7.0;

//Diameter of Bolt Knob
boltKnobDiameter = 20;
//Height of Bolt Knob;
boltKnobLength = 20;
//Number of knurls around Knob Diameter
boltKnobKnurlNum = 15;
//Depth of knurls
boltKnobKnurlDepth = 1;
//Width of knurls
boltKnobKnurlWidth = 1;
//Angle of knurling
boltKnobKnurlAngle = 100;

//********************************************************************************
//Knob that allows for the bolt to be adjusted
//********************************************************************************
module boltKnob()
{

    if(boltKnobDiameter> nutWidth)
    {

    difference(){
    cylinder(r=boltKnobDiameter*0.5, h=boltKnobLength, center = true);
    translate([0,0,-(boltKnobLength*0.5)+nutThickness*0.5]){
    cylinder(r= nutWidth*0.5, h = nutThickness, center = true, $fn=6);
    }

    //translate([boltKnobDiameter*0.5, 0,0])

    for (i = [1:1:boltKnobKnurlNum])

    rotate([0,0,360*i/boltKnobKnurlNum]){
    {

        linear_extrude(height = boltKnobLength, center = true, twist = boltKnobKnurlAngle){
            translate([boltKnobDiameter*0.5, 0,0]){
        square(size = [boltKnobKnurlDepth,boltKnobKnurlWidth], center = true);
            }
        }

        linear_extrude(height = boltKnobLength, center = true, twist = -boltKnobKnurlAngle){
            translate([boltKnobDiameter*0.5, 0,0]){
        square(size = [boltKnobKnurlDepth,boltKnobKnurlWidth], center = true);
            }
        }
    //cube(size = [2,2, boltKnobLength], center = true);
    }
    }
}
}
    else
    {
        echo("Knob diameter is less than nut width");
    }
}

boltKnob();
```


[User]
Okay, I've got this idea for upcycling all these ice cream cups we're accumulating. Basically, I want to turn them into stackable mini-greenhouses for starting seeds, and I need some OpenSCAD files to make the connectors.

My ice cream cups have a bottom diameter of 84mm, a top diameter of 110mm, and are 58mm tall. I envision two types of connectors: a "stack ring" that sits on top of a cup and allows another cup to stack securely on it, and a "binding ring" that fits around the top of the cup, presumably to add some structure and to let the stack rings connect.

I'd like the design to be parametric, so I can easily adjust things like the cup dimensions, the connector thickness, and the extra room for the cups to fit. I’m looking to make the connectors print in a reasonable amount of time, so I'll want to keep the quality relatively low during design, but I need a variable to increase the quality on final render and print.

Here are some specifics I need included:

*   **Stack Ring:** This ring will sit on top of an ice cream cup. It should have a tapered inner profile that matches the cup's shape, with a slight extra bit of clearance. It also needs a matching tapered outer profile on the bottom so it can stack on top of another stack ring. It should include a cylinder cut out of the center so that a second cup is seated properly. The height of this ring will probably be around 4mm.
*   **Binding Ring:** This ring will fit around the top of an ice cream cup. It should have a slightly tight fit but also should have a section with a little room so the ring does not crack while being placed. I’d like to include some internal support to make it rigid and a tight fit so the ring stays in place. I expect this ring to be about 5mm tall with some variance on the internal design. The internal cutouts should have different diameters, giving it a "stepped" profile. I'll also need a "clean cut" cylinder to make sure it slices cleanly through the top of the ice cream cup to get the proper fit.
*   **Parametric Design:** I need variables for all the cup dimensions (bottom diameter, top diameter, height), the extra room for fitting, skin thickness, stack ring height, the quality of the object, and sitting disc width.
*   **User Selection:** It would be great if there was a variable to choose what to render so I can individually view the stack ring, the binding ring, or both at the same time.

I think that covers it all. I'm not sure if you need any libraries for this project, but if you do, I don't have any specific libraries in mind, so just pick what you think works best.

[Assistant]
Ice_Cream_Cup_Upcycling_-_window_satackable_greenhouse_-_customizer.scad:
```
// Which part would you like to see?
part = "both"; // [first:Stack Ring Only,second:Bind Ring Only,both:Stack and Bind Rings]

// Cup bottom diameter
cupbd   =  84;

// Cup top diameter
cuptd   =  110;

// Cup height
cuph    =  58;

/* [Hidden] */

extra = 1; //Extra room
skin = 1.5; //Skin width

stackh = 4; // Stack ring heigh

q = cupbd; // Quality Object (stay low till final rendering)

cupbr = (cupbd)/2; // radius bottom
cuptr = (cuptd)/2; // radius top

alpha = atan(cuph/(cuptr-cupbr));
cuptr2 = cupbr + (stackh/tan(alpha));

disc = 2; //sitting disc width

print_part();

module print_part() {
	if (part == "first") {stack_ring();
	} else if ( part == "second") {bind_ring();
	} else if ( part == "both") {both();
	} else {
                both();
	}
}

module stack_ring() {

difference () {
union () {
difference (){//top
cylinder(h = stackh, r1 = cupbr+skin, r2 = cuptr2+skin, center = false , $fn=q); // Ice Cup + skin width
translate([0,0,0.5]) cylinder(h = stackh, r1 = cupbr+extra/2, r2 = cuptr2+extra/2, center = false , $fn=q); // Real Ice Cup
}

rotate([180,0,0]) difference (){//bottom
cylinder(h = stackh, r1 = cupbr+skin, r2 = cuptr2+skin, center = false , $fn=q); // Ice Cup + skin width
translate([0,0,0.5]) cylinder(h = stackh, r1 = cupbr+extra/2, r2 = cuptr2+extra/2, center = false , $fn=q); // Real Ice Cup
}
}
translate([0,0,-(cuph*2)/2]) cylinder(h = cuph*2, r1 = cupbr-disc, r2 = cupbr-disc, center = false , $fn=q); // cylinder hole
}
}

module bind_ring() {

difference (){
cylinder(h = 5, r1 = cuptr+skin, r2 = cuptr+skin, center = false , $fn=q);                              //          55,5+1,5=57
translate([0,0,3.5]) cylinder(h = 2, r1 = cuptr+extra/2, r2 = cuptr+extra/2, center = false , $fn=q);   // exact+   55,5+0,5=56
translate([0,0,2.5]) cylinder(h = 1.5, r1 = cuptr-2, r2 = cuptr-2, center = false , $fn=q);             // support  55,5-2=53,5
translate([0,0,1.5]) cylinder(h = 1, r1 = cuptr+extra/2, r2 = cuptr+extra/2, center = false , $fn=q);   // exact+   55,5+0,5=56
translate([0,0,-0.5]) cylinder(h = 2.5, r1 = cuptr-0.25, r2 = cuptr-0.25, center = false , $fn=q);      // tight    55,5-0,25=55,25
translate([0,0,-5]) cylinder(h = 10, r1 = cuptr-2, r2 = cuptr-2, center = false , $fn=q);               // clean cut
}
}

module both() {
	translate([-cuptd/2, 0, 0]) bind_ring();
    translate([cuptd/2, 0, 0]) stack_ring();

}

```
Ice_Cream_Cup_Upcycling_-_window_satackable_greenhouse_-_customizer_V002.scad:
```
// Which part would you like to see?
part = "both"; // [first:Stack Ring Only,second:Binding Ring Only,both:Stack and Binding Rings]

// Cup bottom diameter
cupbd   =  84;

// Cup top diameter
cuptd   =  110;

// Cup height
cuph    =  58;

/* [Hidden] */
extra = 1; //Extra room
skin = 2; //Skin width
stackh = 4; // Stack ring heigh
q = cupbd; // Quality Object (stay low till final rendering)
cupbr = (cupbd)/2; // radius bottom
cuptr = (cuptd)/2; // radius top
alpha = atan(cuph/(cuptr-cupbr));
cuptr2 = cupbr + (stackh/tan(alpha));
disc = 2; //sitting disc width
cupw = 0.75;//cup width

print_part();

module print_part() {
	if (part == "first") {stack_ring();
	} else if ( part == "second") {bind_ring();
	} else if ( part == "both") {both();
	} else { both();}
}

module stack_ring() {
    difference () {
                    translate([0,0,stackh]) union () {
                               difference (){  //top
                                cylinder(h = stackh, r1 = cupbr+(skin-0.5), r2 = cuptr2+(skin-0.5), center = false , $fn=q); // Ice Cup + skin width
                                translate([0,0,0.5]) cylinder(h = stackh, r1 = cupbr+(extra/2), r2 = cuptr2+(extra/2), center = false , $fn=q); // Real Ice Cup
                                }

                               rotate([180,0,0]) difference (){    //bottom
                                cylinder(h = stackh, r1 = cupbr+(skin-0.5), r2 = cuptr2+(skin-0.5), center = false , $fn=q); // Ice Cup + skin width
                                translate([0,0,0.5]) cylinder(h = stackh, r1 = cupbr+(extra/2), r2 = cuptr2+(extra/2), center = false , $fn=q); // Real Ice Cup
                                }
                    }
                    translate([0,0,-(cuph*2)/2]) cylinder(h = cuph*2, r1 = cupbr-disc, r2 = cupbr-disc, center = false , $fn=q); // cylinder hole
    }
}

module bind_ring() {
    difference (){
        cylinder(h = 5, r1 = cuptr+skin, r2 = cuptr+skin, center = false , $fn=q);                                  //
        translate([0,0,3]) cylinder(h = 2, r1 = cuptr+0.5, r2 = cuptr+0.5, center = false , $fn=q);                 // roomy     +1 mm
        translate([0,0,2]) cylinder(h = 2, r1 = cuptr-2, r2 = cuptr-2, center = false , $fn=q);                     // support   -2 mm
        translate([0,0,1]) cylinder(h = 1, r1 = cuptr+0.5, r2 = cuptr+0.5, center = false , $fn=q);                 // roomy     +1 mm
        translate([0,0,0]) cylinder(h = 1, r1 = cuptr-0, r2 = cuptr-1, center = false , $fn=q);                   // tight     -1 mm
        translate([0,0,-10]) cylinder(h = 10, r1 = cuptr-2, r2 = cuptr-2, center = false , $fn=q);                  // clean cut -10 to 10 - 4mm band
    }
}

module both() {
	translate([-cuptd/2, 0, 0]) bind_ring();
    translate([cuptd/2, 0, 0]) stack_ring();

}

```


[User]
Okay, I'm looking to design a set of parametric drawers and a frame to hold them, and I'd like to use OpenSCAD to do it. I want the design to be flexible, allowing me to easily change the dimensions and layout of the drawers, and I'd like to add some aesthetic touches like bevelled edges to the drawers and handles.

Here's a breakdown of what I need:

**Overall Structure**

The design should consist of two main components: the drawers themselves, and a frame that holds them.  I need the ability to toggle whether I'm looking at just the drawers, just the frame or both parts together. The drawers should slide into the frame.

**Basic Dimensions**

All dimensions will be in millimeters:

*   **Unit Width:** This is the base width for a single "unit" wide drawer.
*   **Unit Height:**  This is the base height for a single "unit" high drawer.
*   **Unit Depth:** This will be the depth of all the drawers.
*   **Handle Thickness:** The thickness of the handles.
*   **Handle Depth:** How far the handles extend out from the front of the drawers.
*   **Wall:** The thickness of the material used for drawer walls and the spacing between drawers.
*   **Bevel:** The length of the beveled edges on drawer corners.
*   **Print Space:** A minimum amount of space to leave between printed objects on the print bed when rendering.
*   **Sliding Tolerance:** A tolerance to account for sliding parts when printing the drawers within the frame

**Drawer Layout**

The drawer layout should be defined by three arrays:

*   **Widths:** This array is a list of lists, where each inner list represents a row of drawers and the numbers in those lists are the drawer widths expressed as multiples of "Unit Width". For example `[[1, 1], [2]]` represents a layout with two single-width drawers on the first row, and one double-width drawer on the second.

*   **Heights:** Similar to 'Widths' but represents the heights of the drawers, expressed as multiples of "Unit Height". So `[[1, 1], [1]]` would indicate that there is one drawer one unit tall in each row.

*   **Dividers:** An array of arrays where the numbers represent how many dividers to put in each drawer. Using the same layout as above `[[1, 1], [1]]` says that all three drawers will have one internal divider, where as `[[1, 0], [0]]` says the first two drawers in the first row have one divider and the second drawer has zero dividers and the final row's drawer has no dividers.

*   **Handles:** An array of arrays where the number corresponds to the number of handles to add to each drawer in each row.  Using the same layout, `[[1, 1], [2]]` says that each of the drawers in the first row will have one handle, and the single drawer in the second row will have two.

**Drawer Features**

*   Drawers should be based on a standard bevelled box shape, but with a slightly thinner inner box that has a small tolerance for fitting in the frame
*   Internal dividers should also have the bevelled shape, but be as thin as possible so they don't prevent the drawer from sliding into the frame.
*   The handles should be a stylized handle shape.

**Frame**

*   The frame should be a simple bevelled box that holds all the drawers.
*   The cutouts within the frame should be sized to fit all of the previously drawn drawers.

**Functionality**

*   The design should be fully parametric, allowing me to change any of the above dimensions and the layout to create different drawer configurations.
*   I would like to be able to control the tolerance for the sliding fit between the drawers and the frame.
*   I need the ability to look at just the drawers, just the frame, or both parts together for debugging and preview purposes.

**Libraries**

I don't need any external libraries at this time.

**Example Configurations**

Here are some examples of layouts to test with:

*   **Simple Example:** `widths = [[1, 1], [2]]`, `heights = [[1, 1], [1]]`, `dividers = [[1, 1], [1]]`, `handles = [[1, 1], [2]]`
*   **Complex Example:** `widths = [[1, 1, 1, 1], [2, 2], [4]]`, `heights = [[2, 2, 2, 2], [3, 3], [4]]`, `dividers = [[1, 0, 0, 1], [2, 2], [1]]`, `handles = [[1, 1, 1, 1], [2, 2], [2]]`
*  **Super Simple Example:** `widths = [[3]]`, `heights = [[4]]`, `dividers = [[1]]`, `handles = [[2]]`

Let me know if you have any questions. Thanks!

[Assistant]
Parts_Drawers_1.0.3.scad:
```
// preview[view:north west, tilt:top diagonal]

/* [Basics] */
// Units in mm that make up the width of the drawers
unit_width = 25; // [10:100]
// Units in mm that make up the height of the drawers
unit_height = 20; // [10:100]
// Depth front-to-back of all drawers in mm
unit_depth = 50; // [20:200]
// Thickness of handle in mm
handle_thickness=5; // [3:30]
// Depth of handle in mm
handle_depth=10; // [10:50]
// Thickness of the walls in mm (drawer walls and gap between drawers)
wall = 2; // [1:10]
// Size of bevel in mmon corners
bevel = 5; // [0:20]
// Space in mm between components on the bed
print_space = 2;

/* [Drawers] */

// ## Complex example ##
// Unit width of each drawer
widths = [[1, 1, 1, 1], [2, 2], [4]];
// Unit height of each drawer
heights = [[2, 2, 2, 2], [3, 3], [4]];
// Number of dividers in each drawer
dividers = [[1, 0, 0, 1], [2, 3], [1]];
// Number of handles on the front of each drawer
handles = [[1, 1, 1, 1], [2, 2], [2]];

module simple_example() {
    // ## Simple example ##
    // Unit width of each drawer
    widths = [[1, 1], [2]];
    // Unit height of each drawer
    heights = [[1, 1], [1]];
    // Number of dividers in each drawer
    dividers = [[1, 1], [1]];
    // Number of handles on the front of each drawer
    handles = [[1, 1], [2]];
}

module super_simple_example() {
    // ## Super Simple Single Drawer example ##
    // Width in width units of each drawer
    widths = [[3]];
    // Height in height units of each drawer
    heights = [[4]];
    // Number of dividers in each drawer
    dividers = [[1]];
    // Number of handles on the front of each drawer
    handles = [[2]];
}

/* [Global] */
// What part(s) do you want to look at?
part = "both"; // [drawers:Drawers Only,frame:Frame Only,both:Drawers and Frame]

// Include the drawers
drawers = part == "drawers" || part == "both";
// Include the frame
frame = part == "frame" || part == "both";

module go() {
    // Tolerance space between sliding parts
    sliding_tol = 0.3;
    // Separator used to avoid congruent vertices/lines/planes
    sep = 0.001;
    hb = bevel / 2;

    // Flatten a vector of vectors
    function flatten(a) = [for (a = l) for (b = a) b];
    // Sum first n terms, defaults to all terms
    function sum(a, n=-1, i=0, t=0) = i < len(a) && i != n ? sum(a, n, i + 1, t + a[i]) : t;

    module bevel(depth) {
        // Build a subtractive bevel with x-section bevel squared and supplied depth
        rotate(45) translate([-hb, -hb, -1]) cube([bevel, bevel, depth + 2]);
    }

    module bevel_box(width, height, depth, bevel, bevel_top=true) {
        // Build a box with a bevelled edge
        difference() {
            // Box
            cube([width, height, depth]);
            union() {
                // Bevels
                translate([0, 0, -1]) {
                    bevel(depth + 2);
                };
                translate([width, 0, -1]) {
                    bevel(depth + 2);
                };
                if (bevel_top) {
                    translate([0, height, -1]) {
                        bevel(depth + 2);
                    };
                    translate([width, height, -1]) {
                        bevel(depth + 2);
                    };
                }
            };
        }
    }

    module bevel_divider(drawer_id, divider_id, width, height, depth, bevel) {
        // build a bevel divider for given drawer
        // Depth is the mid point of the divider in the drawer
        // echo("Divider", drawer_id=drawer_id, divider_id=divider_id, width=width, height=height, depth=depth, bevel=bevel);
        translate([0, 0, depth])
        intersection() {
            difference() {
                bevel_box(width, height, unit_depth, bevel, true);
                // Keep from face of drawer
                translate([-sep, -sep, wall + sep])
                    cube([width + 2 * sep, height + 2 * sep, unit_depth]);
            }
            // Remove clashing vertices, edges and planes
            translate([sep, sep, -1])
                cube([width - 2 * sep, height - 2 * sep, 2]);
        }
    }

    module handle(drawer_id, handle_id, height, width, depth, thickness=handle_thickness) {
        // Build a handle with given width height and depth
        // Thickness is the handle size in mm
        // echo("Handle", drawer_id=drawer_id, handle_id=handle_id, height=height, width=width, depth=depth);

        module handle_shell(h, w, d, b) {
            // Build extruded trapezoid for handle
            difference() {
                cube([w, h, d]);
                translate([-sep, -sep, -d])
                    rotate([45, 0, 0])
                        cube([w + 2 * sep, b + 2 * sep, b]);
                translate([-sep, h - sep, -d])
                    rotate([45, 0, 0])
                        cube([w + 2 * sep, b + 2 * sep, b]);

            }
        }

        // Calculate the bevel edge length
        function bev(d, h) = pow(2 * pow(min(d, h/2), 2), 0.5);

        // Calculate handle cutout dimensions
        d2 = depth - thickness;
        h2 = height - 2 * thickness;
        // Calculate bevel size for exterior and interior
        b1 = bev(depth, height);
        b2 = bev(d2, h2);

        difference(){
            // Exterior of handle
            handle_shell(height, width, depth, b1);
            // Inner cut out of handle
            translate([-sep, thickness, thickness + sep])
                handle_shell(h2, width + 2 * sep, d2, b2);
        }
    }

    module lay() {
        // debug method
        if (true) {
            translate([0, unit_depth, 0])
                rotate([90, 0, 0])
                    children();
        } else {
            children();
        }
    }

    module drawer(id=1, width=1, height=1, handles=1, dividers=1, bevel=bevel, extra=0) {
        // Build a drawer with:
        //  width: mutiple of standard width
        //  height: mutiple of standard height
        //  handles: Given number of handles
        //  dividers: Number of drawer dividers
        //  bevel: Size of corner bevel
        //  extra: Extra value added to all dimensions for tolerances

        w = width * unit_width + (width - 1) * wall + extra;
        h = height * unit_height + extra;
        d = unit_depth + extra;
        // echo("Drawer", id=id, w=w, h=h, d=d);
        // echo(bevel=bevel, extra=extra);
        // echo(handles=handles, dividers=dividers);
        lay()
        union() {
            // Add drawer
            if (true) {
                difference() {
                    // Outer box
                    bevel_box(w, h, d, bevel);
                    // Inner space
                    translate([wall, wall, wall]) {
                        bevel_box(
                                w - 2 * wall,
                                h + 2 * wall,
                                d - 2 * wall,
                                bevel,
                                false);
                    };
                    hxb = pow(2 * pow(hb, 2), 0.5);
                    translate([-1, h - hxb, wall + sep]) {
                        cube([w + 2, hb + 2, d - 2 * wall - 2 * sep]);
                    }
                }
            }
            // Add dividers
            if (dividers > 0) {
                // echo(dividers=dividers);
                div_offset = d / (dividers + 1);
                for (divider = [0 + 1:dividers]) {
                    // echo(divider=divider);
                    bevel_divider(id, divider, w, h, div_offset * divider - wall / 2, bevel);
                }
            }
            // Add handles
            if (handles > 0) {
                // echo(handles=handles);
                handle_height = h / 1.5;
                handle_offset = w / (handles + 1);

                for (handle = [0 + 1:handles]) {
                    // echo(handle=handle);
                    offset_x = handle_offset * handle - handle_thickness / 2;
                    offset_y = (h - handle_height) / 2;
                    translate([offset_x, offset_y, -handle_depth + sep]) {
                        handle(id, handle, handle_height, handle_thickness, handle_depth);
                    }
                }
            }
        }
    }

    module build_drawers(widths, heights, dividers, handles) {
        // echo("===DRAWERS===");
        // Build each of the drawers
        for (row_id=[0:len(widths) - 1]) {
            row_widths = widths[row_id];
            row_heights = heights[row_id];
            row_dividers = dividers[row_id];
            row_handles = handles[row_id];

            max_row_width = max(row_widths);
            translate([0, row_id * (unit_depth + handle_depth + print_space), 0]) {
                for (drawer_id=[0:len(row_widths) - 1]) {
                    drawer_widths = row_widths[drawer_id];
                    drawer_heights = row_heights[drawer_id];
                    drawer_divides = row_dividers[drawer_id];
                    drawer_handles = row_handles[drawer_id];

                    // echo(row_id=row_id, drawer_id=drawer_id);
                    // echo(widths=drawer_widths, dividers=drawer_divides, handles=drawer_handles);
                    x_offset = drawer_id * max_row_width * unit_width + drawer_id * (wall + print_space);
                    translate([x_offset, 0, 0]) {
                        drawer(
                            [row_id, drawer_id],
                            width=drawer_widths,
                            height=drawer_heights,
                            handles=drawer_handles,
                            dividers=drawer_divides,
                            extra=-sliding_tol);
                    }
                }
            }
        }
    }

    module build_frame(widths, heights) {
        // echo("===FRAME===");
        // Max drawer height on a row
        function row_height(n) = max(heights[n]);

        full_drawer_width = max([for (r = widths) sum(r)]);
        full_drawer_height = sum([for (r = heights) max(r)]);

        // echo(full_drawer_width=full_drawer_width, full_drawer_height=full_drawer_height);
        rows = len(widths);

        frame_width = full_drawer_width * unit_width + (full_drawer_width + 1) * wall;
        frame_height = full_drawer_height * unit_height + (rows + 1) * wall;
        frame_depth = unit_depth + wall;
        // echo(frame_width=frame_width);
        // echo(frame_height=frame_height);
        // echo(frame_depth=frame_depth);

        // Allow for the previously printed drawers
        offset_y = drawers ? rows * (unit_depth + handle_depth + print_space) : 0;
        translate([0, offset_y, 0]) {
            difference() {
                // Frame outline
                bevel_box(frame_width, frame_height, frame_depth);
                // All drawers
                union() {
                    for (row_id=[0:len(widths) - 1]) {
                        row_widths = widths[row_id];
                        row_heights = heights[row_id];
                        total_drawer_heights = row_id == 0 ? 0 : sum([for (x=[0:row_id - 1]) row_height(x) * unit_height]);
                        // echo(total_drawer_heights=total_drawer_heights);
                        row_offset = (row_id + 1) * wall + total_drawer_heights;
                        // echo(row_id=row_id, row_offset=row_offset);
                        translate([0, row_offset, wall]) {
                            for (drawer_id=[0:len(row_widths) - 1]) {
                                drawer_widths = row_widths[drawer_id];
                                drawer_heights = row_heights[drawer_id];

                                previous_drawers = sum(row_widths, drawer_id);
                                col_offset = wall + previous_drawers*(unit_width + wall);
                                translate([col_offset, 0, 0]) {
                                    //echo(drawer_id=drawer_id, col_offset=col_offset);
                                    //echo(previous_drawers=previous_drawers);
                                    dw = drawer_widths * unit_width + (drawer_widths - 1) * wall;
                                    dh = drawer_heights * unit_height;
                                    bevel_box(dw, dh, unit_depth + 10);
                                }
                            }
                        }
                    }
                }
            }
        }
    }

    // Build and layout the drawers
    if (drawers)
        build_drawers(widths, heights, dividers, handles);

    // Build and layout the frame
    if (frame)
        build_frame(widths, heights);
}

go();

```


[User]
I'm looking to create a parametric block for mounting rods, similar to the one I've been using, but I'd like it to be more flexible and configurable. I’ve been using this basic SCAD code, which I can include if needed, but I'd really like to have something more robust and customizable. The idea is to have a central hole for the rod and screw holes to secure the rod and also to mount the block to a surface. I plan on 3D printing this so a fairly simple design is best, but it needs to be configurable via parameters.

Here are the features I need:

*   **Rod Hole:** A central hole that allows a rod to pass through, with a configurable diameter.
*   **Screw Holes for Rod:** Screw holes that intersect the rod hole to secure the rod in place. These should be configurable by screw diameter and their linear distance (center to center) apart, as well as their number (for this design, I'd like an option to have 2 or 4).
*   **Mounting Holes:** Screw holes that allow the block to be mounted to a surface, arranged in a square pattern. These holes should also be configurable for diameter and linear spacing (center to center).
*   **Block Dimensions:** The block itself should be a cube/rectangular prism, configurable by width, depth, and height.
*   **Parametric Design:** All of these dimensions (hole diameters, screw distances, block dimensions, number of rod screw holes) should be parameters that can be easily modified.

I'd like the design to be relatively simple to 3D print and not too complicated.

I would prefer the design to be written in OpenSCAD. I am aware of the existence of several OpenSCAD libraries (MCAD, BOSL, BOSL2, dotSCAD, NopSCADlib, BOLTS). I'm not specifically requesting any one but, if they make the design cleaner, then I'm open to their use. Could you please generate a parametric OpenSCAD file or files to achieve this?

[Assistant]
rod_block.scad:
```
// diameter of the rod
rod_dia     = 10;

// diameter of the screw holes
screw_dia   = 3;

// linear distance between the vertical screw holes
screw_dist  = 14;

// width (x and y) of the block
cube_width  = 20;

// height of the block
cube_height = 20;

difference()
{
  translate([-cube_width/2,-cube_width/2,0]) cube(size=[cube_width,cube_width,cube_height]);
  union()
  {
    translate([0,0,cube_height/2]) cylinder(h=cube_height+2,r1=rod_dia/2,r2=rod_dia/2,center=true, $fn=60);
// vert screw holes
    translate([screw_dist/2,screw_dist/2,cube_height/2]) cylinder(h=cube_height+2,r1=screw_dia/2,r2=screw_dia/2,center=true, $fn=60);
    translate([-screw_dist/2,screw_dist/2,cube_height/2]) cylinder(h=cube_height+2,r1=screw_dia/2,r2=screw_dia/2,center=true, $fn=60);
    translate([screw_dist/2,-screw_dist/2,cube_height/2]) cylinder(h=cube_height+2,r1=screw_dia/2,r2=screw_dia/2,center=true, $fn=60);
    translate([-screw_dist/2,-screw_dist/2,cube_height/2]) cylinder(h=cube_height+2,r1=screw_dia/2,r2=screw_dia/2,center=true, $fn=60);
// hor screw hole
    translate([0,0,cube_height/2]) rotate([90,0,0]) cylinder(h=cube_width+2,r1=screw_dia/2,r2=screw_dia/2,center=true, $fn=60);
  }
}
```


[User]
I need to design a block that can connect two cylindrical rods at a 90-degree angle. I'm planning to use this with 10mm diameter aluminum rods and M3 screws. Basically, the design needs to accommodate two rods, one vertical and one horizontal, and have screw holes to secure them. I have a basic idea of the shape and want to make it fully parametric for different rod diameters, screw sizes, and block dimensions.

Here's what I'm thinking:

1.  **Rod Holes:** There should be two cylindrical holes, each with a diameter equal to the rod diameter. One hole goes through the block vertically and the other goes horizontally.

2.  **Screw Holes:** There will be screw holes perpendicular to each rod hole for securing the rods. These should be smaller than the screw size to allow for self-tapping. I'm using metric M3 screws, so I'll need the diameter of these screw holes as a parameter as well. There should be a screw hole that is perpendicular to each rod hole.

3.  **Block Dimensions:** The overall block size should be configurable, with a "wall thickness" parameter determining the space between the rod holes and the block's outer edges. The distance between the two rod holes (center to center) will be a parameter, too.

4.  **Parameters:** I'd like to be able to easily adjust these parameters:
    *   `rod_dia`: Diameter of the rods (e.g., 10mm).
    *   `screw_dia`: Diameter of the screw holes (e.g., 3mm).
    *   `rod_dist`: Distance between the center of the two rod holes (e.g., 13mm).
    *   `cube_wall`: Thickness of the wall around the rod holes (e.g., 3mm).

5.  **OpenSCAD:** I'd prefer an OpenSCAD implementation that's as clean and readable as possible, and I don't need any extra libraries for this design. Could you generate the code for me? I'm hoping that the whole thing can be accomplished in a single .scad file.

[Assistant]
rod_double_block.scad:
```
// diameter of the rod
rod_dia     = 10;

// diameter of the screw holes
screw_dia   = 3;

// distance between the two rods
rod_dist    = 3;

// thickness of the wall
cube_wall   = 3;

difference()
{
  translate([-(2*rod_dia+2*cube_wall+rod_dist)/2,-(rod_dia+2*cube_wall)/2,0]) cube(size=[2*rod_dia+2*cube_wall+rod_dist,rod_dia+2*cube_wall,rod_dia+2*cube_wall]);
  union()
  {
// vert rod
    translate([-(rod_dia+rod_dist)/2,0,(rod_dia+2*cube_wall)/2]) cylinder(h=rod_dia+2*cube_wall+2,r1=rod_dia/2,r2=rod_dia/2,center=true, $fn=60);
// hor screw
    translate([-(rod_dia+rod_dist)/2,0,(rod_dia+2*cube_wall)/2]) rotate([90,0,0]) cylinder(h=rod_dia+2*cube_wall+2,r1=screw_dia/2,r2=screw_dia/2,center=true, $fn=60);
// vert rod
    translate([+(rod_dia+rod_dist)/2,0,(rod_dia+2*cube_wall)/2]) cylinder(h=rod_dia+2*cube_wall+2,r1=screw_dia/2,r2=screw_dia/2,center=true, $fn=60);
// hor rod
    translate([+(rod_dia+rod_dist)/2,0,(rod_dia+2*cube_wall)/2]) rotate([90,0,0]) cylinder(h=rod_dia+2*cube_wall+2,r1=rod_dia/2,r2=rod_dia/2,center=true, $fn=60);
// long screw hole
    translate([0,0,(rod_dia+2*cube_wall)/2]) rotate([0,90,0]) cylinder(h=2*rod_dia+2*cube_wall+rod_dist+2,r1=screw_dia/2,r2=screw_dia/2,center=true, $fn=60);
  }
}
```


[User]
I'm looking for an OpenSCAD design for a block that can be used to connect two cylindrical rods, either parallel or at a 90-degree angle. The block should have holes that fit standard M3 screws, so I can fix the rods in place. I want to be able to adjust the diameter of the rods, the distance between them when placed parallel, and the wall thickness of the block itself, so that it's suitable for different rods. I've been using this type of block to mount webcams on aluminum rod scaffolds, and I'd like to generalize the design.

I’d like the design to be parametric, so I can easily change these dimensions and generate a new model, and I'm hoping you can provide me with the necessary OpenSCAD code. Specifically, I need these parameters to be adjustable:

*   **rod\_dia**: The diameter of the rods being connected.
*   **screw\_dia**: The diameter of the screw holes. I'm using 3mm for M3 screws.
*   **rod\_dist**: The distance between the centers of the rods when used in a parallel configuration.
*   **cube\_wall**: The thickness of the material surrounding the rod holes.

Can you provide the OpenSCAD code for this? It'd be great if the design was centered on the origin. I am hoping this design will have one file for the main block, and ideally would like to rely on the BOSL library, if possible.

[Assistant]
rod_cross_block.scad:
```
// diameter of the rod
rod_dia     = 10;

// diameter of the screw holes
screw_dia   = 3;

// distance between the two rods
rod_dist    = 3;

// thickness of the wall
cube_wall   = 3;

difference()
{
  translate([-(2*rod_dia+2*cube_wall+rod_dist)/2,-(rod_dia+2*cube_wall)/2,0]) cube(size=[2*rod_dia+2*cube_wall+rod_dist,rod_dia+2*cube_wall,rod_dia+2*cube_wall]);
  union()
  {
// vert rod
    translate([-(rod_dia+rod_dist)/2,0,(rod_dia+2*cube_wall)/2]) cylinder(h=rod_dia+2*cube_wall+2,r1=rod_dia/2,r2=rod_dia/2,center=true, $fn=60);
// hor rod
    translate([-(rod_dia+rod_dist)/2,0,(rod_dia+2*cube_wall)/2]) rotate([90,0,0]) cylinder(h=rod_dia+2*cube_wall+2,r1=rod_dia/2,r2=rod_dia/2,center=true, $fn=60);
// vert rod
    translate([+(rod_dia+rod_dist)/2,0,(rod_dia+2*cube_wall)/2]) cylinder(h=rod_dia+2*cube_wall+2,r1=rod_dia/2,r2=rod_dia/2,center=true, $fn=60);
// hor rod
    translate([+(rod_dia+rod_dist)/2,0,(rod_dia+2*cube_wall)/2]) rotate([90,0,0]) cylinder(h=rod_dia+2*cube_wall+2,r1=rod_dia/2,r2=rod_dia/2,center=true, $fn=60);
// long screw hole
    translate([0,0,(rod_dia+2*cube_wall)/2]) rotate([0,90,0]) cylinder(h=2*rod_dia+2*cube_wall+rod_dist+2,r1=screw_dia/2,r2=screw_dia/2,center=true, $fn=60);
  }
}
```


[User]
Hey, I'm looking to design a customizable, Swiss Army-style key chain in OpenSCAD. I want to be able to control quite a few parameters and I'd like to have a few specific features. I've got a basic idea but need help with the code, it's a bit complex.

Essentially, the design will consist of three main parts: an upper piece, a lower piece, and a small USB drive drawer. These pieces will be joined by screws, and the overall design should have a "Swiss Army Knife" aesthetic.

Here's a breakdown of the features and parameters I need:

**Global Parameters:**

*   `parts`: A string variable to select which part(s) to render (e.g., "lower", "upper", "usb-drawer", or "all").
*   `keyring`: A string variable to include a keyring attachment on the upper part. Options should be "Yes", "No", and "I'm Chuck Norris" (for fun, but essentially does the same thing as "Yes").
*   `length`: The overall length of the main parts (distance between screws), should be adjustable with a reasonable range, say from 30 to 150.
*   `width`: The width of all the parts, adjustable from 10 to 50.
*   `thickness`: The thickness of the main parts, adjustable from 1 to 5 in 0.1 increments.

**Bevel Parameters:**

*   `bevel_height`: The height of the bevel on the main parts (where edges are rounded off), adjustable from 0 to 5 in 0.1 increments.
*   `bevel_offset`: The offset of the bevel on the main parts, adjustable from 0 to 5 in 0.1 increments.
*   `finger_bevel_height`: The bevel height for the finger holes in the upper part, same range as `bevel_height`.
*   `finger_bevel_offset`: The bevel offset for the finger holes, same range as `bevel_offset`.
*   `middle_hole_bevel`: A boolean variable to determine if the middle finger hole in the upper part has a bevel. Options are `true` or `false`.

**Honeycomb Pattern Parameters:**

*   `honeycomb_pattern_offset`: Distance between screws and the start of the honeycomb pattern on the lower part, adjustable from 3 to 75.
*   `hex_segments`:  The number of vertical hex segments in the pattern, should be adjustable from 2 to 25 in increments of 1.
*   `hex_pattern_thickness`: The thickness of the hex pillars in the honeycomb pattern, should be adjustable from 0.4 to 3 in 0.1 increments.
*   `hex_pattern_width`: The width of the honeycomb pattern, adjustable from 3 to 45 in 0.1 increments.

**USB Drawer Parameters:**

*  `usb_text_style`: Controls how the "USB" text is rendered on the drawer, should have `in` and `out` options (for engraved or raised text).
*  `font_usb`: The font used for the "USB" text, should support all of Google's fonts.

**Hidden Parameters:**

*  `e`: A small value to prevent flickering, default to 0.001.

**Detailed Requirements for each part:**

*   **Upper and Lower Parts:**
    *   Both parts should have a hexagonal outline with beveled edges.
    *   They should have holes for the joining screws, the upper part will need holes suitable for M3 nuts, and the lower part should have recesses for the screw heads.
    *   The upper part should also include finger holes with customizable bevels and an optional key ring loop.
    *  The lower part has a honeycomb pattern with variable offset, thickness, and vertical segments.
*   **USB Drawer:**
    *   It should be a simple hexagonal shape and have text on the sides denoting "USB" - the text style and font are parameterizable. It slides into the space between the upper and lower pieces.

**Libraries**

I would need to use the `honeycomb.scad` library for the honeycomb pattern generation, and I would also need the `cyl_head_bolt.scad` library from `nutsnbolts` for generating the nut and bolt features.

Can you help me generate these files from scratch? Thanks!

[Assistant]
SparkySwissArmyKeychain.scad:
```
$fn = 20;
include<honeycomb.scad>
include<nutsnbolts/cyl_head_bolt.scad>

/* [Global] */
//Part(s):
parts = "all"; //[lower,upper,usb-drawer,all]
//Do you wan't a Keyring?
keyring = "Yes"; //[Yes,No,I'm Chuck Norris]
//Distance between the screws
length = 85;  //[30:150]
//With of all parts
width = 30;   //[10:50]
//Thickness of the main parts
thickness = 3.5;  //[1:0.1:5]

/* [Bevel] */
//Bevel height of the main part
bevel_height = 1.2; //[0:0.1:5]
//Bevel offset of the main part
bevel_offset = 1.2; //[0:0.1:5]
//Bevel height of finger holes
finger_bevel_height = 1.2; //[0:0.1:5]
//Bevel offset of finger holes
finger_bevel_offset = 1.2; //[0:0.1:5]
//should the middle hole have a bevel?
middle_hole_bevel = true; //[Yes:true,No:false]

/* [Honeycomb Pattern] */
//distance between screws and the begin of the pattern (on each side)
honeycomb_pattern_offset = 8; //[3:75]
//vertical hex-segments
hex_segments = 6; //[2:1:25]
//thickness of the hex-pillars
hex_pattern_thickness = 1; //[0.4:0.1:3]
//width of the hex-pattern (experimental)
hex_pattern_width = 18.9; //[3:0.1:45]

/* [Text] */
//style of the text on the usb-drawer
usb_text_style = "in"; //[in,out]
//font of the text on the usb-drawer, all of Google's fonts are supported in Customizer
font_usb = "";

/* [Hidden] */
//epsilon (prevents flickering), don't change unless you know what you're doing
e = 0.001;
/*//text on the lower part
your_text = "free as in freedom (CC-BY-SA)";
//font of the text on the lower part
font = "Ubuntu Mono";*/

module FlashDriveDrawer() {
    //a is the legth of one side of the hexagon of the main parts
    a = width*sin(30);
    dx = cos(30)*(a/2);
    dy = sin(30)*(a/2);

    difference()
    {
        cylinder(6.6, d=width, $fn=6);
        translate([0,0,-e])cylinder(thickness*2,d=4);
        union()
        {
          translate([-5.95,0,1])cube([11.9,20,4.6]);
        }
        if(usb_text_style == "indented" || usb_text_style == "in")
        {
          translate([width/2-dy,dx,3.3]) rotate([90,0,120])translate([0,0,-0.49])linear_extrude(height = .5)text("USB",4,halign="center", valign="center");
          translate([-width/2+dy,dx,3.3])rotate([90,0,-120])translate([0,0,-0.49])linear_extrude(height = 0.5)text("USB",4,halign="center", valign="center");
        }
    }
    if(usb_text_style == "outdented" || usb_text_style == "out")
    {
      translate([width/2-dy,dx,3.3]) rotate([90,0,120])translate([0,0,0])linear_extrude(height = .5)text("USB",4,halign="center", valign="center");
      translate([-width/2+dy,dx,3.3])rotate([90,0,-120])translate([0,0,0])linear_extrude(height = 0.5)text("USB",4,halign="center", valign="center");
    }

}

module MainPart(part)
{
  difference() {
      union()
      {
        //main part
        hull()
        {
          //big lower part of bevel
          translate([0,0,0])cylinder(thickness-bevel_height, d=width, $fn=6);
          translate([0,length,0])cylinder(thickness-bevel_height, d=width, $fn=6);
          //small upper part of bevel
          translate([0,0,thickness-bevel_height])cylinder(bevel_height, d=width-2*bevel_offset, $fn=6);
          translate([0,length,thickness-bevel_height])cylinder(bevel_height, d=width-2*bevel_offset, $fn=6);
        }
        //keyring
        if(part == "upper" && keyring=="Yes") translate([-17,-6,0])cylinder(3.5, d=17, $fn=6);
      }
      //screw holes
      translate([0,0,-e])cylinder(8, d=3);
      translate([0,length,-e])cylinder(8, d=3);

      //holes for the upper part like nut holes and finger holes
      if(part == "upper")
      {
        //nut holes
        hull()translate([0,length,thickness+.1])nut("M3");
        hull()translate([0,0,thickness+.1])nut("M3");

        //keyring hole
        translate([-17,-6,-e])cylinder(thickness*2, d=9, $fn=6);

        //finger holes
        translate([-14,length*(2/3),-e])cylinder(thickness*2, d=17, $fn=6);
        translate([14,length*(1/3),-e])cylinder(thickness*2, d=17, $fn=6);
        translate([0,length/2,-e])cylinder(thickness*2, d=14, $fn=6);
        //finger hole bevels
        finger_hole_bevel_height = thickness-finger_bevel_height;
        hull(){
          translate([-14,length*(2/3),finger_hole_bevel_height])cylinder(e, d=17, $fn=6);
          translate([-14,length*(2/3),thickness])cylinder(e, d=17+2*bevel_offset, $fn=6);
        }
        hull(){
          translate([14,length*(1/3),finger_hole_bevel_height])cylinder(e, d=17, $fn=6);
          translate([14,length*(1/3),thickness])cylinder(e, d=17+2*bevel_offset, $fn=6);
        }
        if(middle_hole_bevel == true)
        {
          hull(){
            translate([0,length/2,finger_hole_bevel_height])cylinder(e, d=14, $fn=6);
            translate([0,length/2,thickness])cylinder(e, d=14+2*bevel_offset, $fn=6);
          }
        }
      }
      //holes for the lower part like hex-pattern
      if(part == "lower")
      {
        hex_element_size =(length-2*honeycomb_pattern_offset-(hex_segments+1)*hex_pattern_thickness)/hex_segments;
        translate([-hex_pattern_width/2,honeycomb_pattern_offset,0])
          antiHoneycomb(hex_pattern_width, length-2*honeycomb_pattern_offset, 10, hex_element_size
          , hex_pattern_thickness);
        //translate([-10.5,length/2,0.49])rotate([0,180,90])linear_extrude(height = 0.5) text("Designed by Mattis Männel",4,"Ubuntu",halign="center");

        //translate([10.4,length/2,0.49])rotate([0,180,90])linear_extrude(height = 0.5) text(your_text,3.8,"Ubuntu Mono",halign="center", valign="top");
        //screw head spaces
        translate([0,0,thickness-2+e])cylinder(2, d1=3, d2=6);
        translate([0,length,thickness-2+e])cylinder(2, d1=3, d2=6);
      }
  }
}

if(parts == "usb-drawer" || parts == "usb_drawer")
{
  FlashDriveDrawer();
}

if(parts == "upper" || parts == "lower")
{
  MainPart(parts);
}

if(parts ==  "all")
{
  translate([-width/2-3,0,0])MainPart("upper");
  translate([width/2+3,0,0])MainPart("lower");
  translate([0,-width,0])FlashDriveDrawer();
}

```
AdapterRing.scad:
```
$fn=20;
height = 2.7;
inner_diameter = 3; //M3
outer_diameter = 5.8;   //the diameter of the hole in the key
difference(){
    cylinder(height, d=5.8);
    translate([0,0,-1])cylinder(height+2, d=3);
}
```


[User]
Okay, I'd like to create a flexible box generator in OpenSCAD, similar to the provided `BoxFactory.scad`, but with some enhancements and a more modular design. The main goal is to generate unfolded box templates that can be cut out and folded, with adjustable parameters for size, thickness, and various features. I need this to be a parametric design, so that I can easily create different boxes.

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

1.  **Core Box Dimensions:**
    *   `width`, `height`, and `depth` variables should control the overall size of the box.
    *   `thickness` should define the material thickness.

2.  **Pads and Folding:**
    *   `pad_size` to control the size of the glue pads or tabs.
    *   Optionally, `beam_width` for the support beams; I may want to use this for structural integrity.
     *   The pads should be attached to the correct edges.

3.  **Template Customization:**
    *   `empty` boolean parameter to switch between a filled template or a template with open areas in the middle to save filament/material
    *   `support` boolean parameter to turn on/off support beams when the template is `empty`.

4.  **Folding Notches:**
     *   `notch_radius` should define the size of the notches for marking fold lines, I plan to use this for easier marking of folding lines.

5.  **Modular Design:**
    *   I'd prefer that the unfolded box geometry be a separate module, distinct from the pad generation and other features. Something along the lines of modules named `UnfoldedBox`, `UnfoldedBoxPads`, and then a main module that combines these. This should be easier to reason about than the current implementation.

6.  **Library Usage:**
    *   I want this to be a clean implementation, and not rely on external libraries if it's not needed. I'd like to avoid using MCAD, BOSL, BOSL2, dotSCAD, NopSCADlib, or BOLTS if possible.

7.  **Output:**
    *   The final output should be a 2D shape of the unfolded box, ready for 3D printing or laser cutting. This will need to be extruded to the specified thickness.

I'm not looking for complex features like rounded corners or advanced shapes, and at this stage, just a simple rectangular box will do.

Could you generate the necessary OpenSCAD file(s) for this? I think it's useful to keep the modules in one file to avoid confusion.

[Assistant]
BoxFactory.scad:
```
width  = 30;

height = 30;

depth  = 30;

/* [Template settings] */

thickness     = 1;

// Size of pads, small values will you hard time folding them
pad_size      = 5;

// You better keep it empty to save filament
empty         = 1; //[1:yes, 0:no]

/* [Advanced] */

// Width of the beams, ignored if template is filled
beam_width    = 2.5;

// Radius of the notches to mark folding points, modify if your pen does not fit
notch_radius  = 1;

// Whether to enable support. Disabling support will save filament but your template will not be durable.
support       = 1; //[1:yes, 0:no]

/* [Hidden] */

module UnfoldedBox(width, height, depth, thickness) {
    cube([width, depth, thickness]);

    translate([width, 0])
        cube([height, depth, thickness]);

    translate([width+height, 0])
        cube([width, depth, thickness]);

    translate([width*2+height, 0])
        cube([height, depth, thickness]);

    translate([width+height, depth])
        cube([width, height, thickness]);

    translate([width+height, -height])
        cube([width, height, thickness]);
}

module UnfoldedBoxPads(width, height, depth, thickness, pad_size, beam_width=0) {
    translation = [0, width, width*2+height];
    widths      = [width, height, height];

    bwe=beam_width*sqrt(2)-beam_width;
    bw=beam_width;

    for(i = [0:2]) {
        t=translation[i];
        w=widths[i];
        linear_extrude(thickness)
        translate([t, depth])
            polygon([
                [bw             ,-bw         ],
                [bw             ,-bwe        ],
                [pad_size+bwe   , pad_size-bw],
                [w-pad_size-bwe , pad_size-bw],
                [w-bw           ,-bwe        ],
                [w-bw           ,-bw         ],
            ]);

        linear_extrude(thickness)
        translate([t, 0])
        mirror([0, 1])
            polygon([
                [bw             ,-bw         ],
                [bw             ,-bwe        ],
                [pad_size+bwe   , pad_size-bw],
                [w-pad_size-bwe , pad_size-bw],
                [w-bw           ,-bwe        ],
                [w-bw           ,-bw         ]
            ]);
    }

    linear_extrude(thickness)
    translate([width*2+height*2, 0])
        polygon([
            [-bw         , bw                ],
            [-bwe        , bw                ],
            [ pad_size-bw, pad_size+bwe      ],
            [ pad_size-bw, depth-pad_size-bwe],
            [-bwe        , depth-bw          ],
            [-bw         , depth-bw          ]
        ]);
}

difference() {
    union() {
        UnfoldedBox(width, height, depth, thickness);
        UnfoldedBoxPads(width, height, depth, thickness, pad_size);
    }

    if(empty) {
        if(support) {
            translate([beam_width, beam_width, -0.005])
                cube([width-beam_width*1.5, depth-beam_width*2, thickness+0.01]);

            translate([width+beam_width*.5, beam_width, -0.005])
                cube([height-beam_width, depth-beam_width*2, thickness+0.01]);

            translate([width+height+beam_width*.5, beam_width, -0.005])
                cube([width-beam_width, depth-beam_width*2, thickness+0.01]);

            translate([width*2+height+beam_width*.5, beam_width, -0.005])
                cube([height-beam_width, depth-beam_width*2, thickness+0.01]);

            translate([beam_width+width+height, beam_width-height, -0.005])
                cube([width-beam_width*2, height-beam_width*1.5, thickness+0.01]);

            translate([beam_width+width+height, beam_width*.5+depth, -0.005])
                cube([width-beam_width*2, height-beam_width*1.5, thickness+0.01]);

            translate([beam_width+width+height, beam_width*.5, -0.005])
                cube([width-beam_width*2, height-beam_width*1, thickness+0.01]);

        }
        else {
            translate([beam_width, beam_width, -0.005])
                cube([width*2+height*2-beam_width*2, depth-beam_width*2, thickness+0.01]);

            translate([beam_width+width+height, beam_width-height, -0.005])
                cube([width-beam_width*2, height*2-beam_width*2+depth, thickness+0.01]);
        }

        translate([0,0,-0.005])
        UnfoldedBoxPads(width, height, depth, thickness+0.01, pad_size, beam_width+0.01);
    }
    $fn=16;
    translate([0,0, -0.005])
    linear_extrude(thickness+0.01) {
        translate([0,0])
        circle(r = notch_radius);
        translate([width,0])
        circle(r = notch_radius);
        translate([width+height,0])
        circle(r = notch_radius);
        translate([width*2+height,0])
        circle(r = notch_radius);
        translate([width*2+height*2,0])
        circle(r = notch_radius);

        translate([0,depth]) {
            translate([0,0])
            circle(r = notch_radius);
            translate([width,0])
            circle(r = notch_radius);
            translate([width+height,0])
            circle(r = notch_radius);
            translate([width*2+height,0])
            circle(r = notch_radius);
            translate([width*2+height*2,0])
            circle(r = notch_radius);
        }

        circle(r = 1);
    }

}
```


[User]
I'd like to create a custom hex bit holder, and I'm looking for a parametric OpenSCAD design that can handle a few things. I've got a pretty clear idea of what I need, so hopefully this is straightforward.

Essentially, I want a container with multiple hexagonal holes for holding hex bits, each with a label near the hole. The labels themselves should be text, and I need to be able to control the content of those labels, and which holes have labels. I'll provide a list of labels organized by rows. Some positions in this list may be intentionally left blank, indicating that a particular hole shouldn't be labeled (and should just be a hole, like all the others). I would like to be able to have control of a symbol that is to be used for that, so that I can change what it is if I want to.

I need to be able to control the overall dimensions of the holder as well as the position of the holes and labels. Specifically:

*   **Hole Labels:** I need to input a 2D list (like a list of lists) where each sub-list represents a row of holes and the content of each text label. If I use a specific string, such as "XXX", then it should skip the label at that position.
*   **Hole Depth:** The depth of the holes (how far down a bit goes) should be customizable.
*   **Hole to Label Gap:** The space between the edge of the hole and the label should be customizable.
*   **Column and Row Gaps:** Minimum space between the columns of holes, and the minimum space between rows of holes, needs to be adjustable.
*   **Border:** Minimum width of the border around the outside of the holes, needs to be adjustable.
*   **Minimum Container Depth:** The minimum overall depth of the container should be able to be set by me.
*   **Skip Name:** The specific string or text used to signify that a label should be skipped should be customizable.
*   **Hole Diameter:** The diameter of the hexagonal holes, measured at the widest point, needs to be adjustable.
*   **Hole Sides:** The number of sides for the holes. I plan on using 6, but I'd like to have it configurable.
*   **Label Width & Depth:** The width and depth of the label, essentially the bounding box size.
*   **Label Font, Font Size:** The font and size for the text labels, also needs to be configurable.
*   **Chamfer Radius:** Finally, I'd like a radius to be applied to the container for aesthetics. I think a simple round chamfer is sufficient.

I'd prefer that all of these values be customizable with OpenSCAD customizer variables.

So, to recap: a parametric hex bit holder with custom labels, sizes, spacing, and chamfers, all driven by customizer variables. I do not need any external libraries to be used.

[Assistant]
hex_bit_holder.scad:
```
XXX = str("XXX");

// CUSTOMIZER VARIABLES
/* [Basic] */
// Labels for each of the holes (Use XXX to skip a hole)
hole_labels = [[XXX, 4.0, 5.0, 6.0, 8.0, 10], [4.5, 4.8, 5.0, 5.5, 6.0, 6.5], [1.5, 2.0, 2.5, 3.0, 3.5, 4.0]];
// Hole depth (in mm)
hole_depth = 10;
// Space between hole and label (in mm)
hole_to_label_gap = 2;
// Minimum gap between columns (in mm)
min_column_gap = 8;
// Minimum gap between rows (in mm)
min_row_gap = 5;
// Border width around the edge of the holes and labels (in mm)
min_border = 5;
// Minimum depth of the container
min_container_depth = 10;

/* [Advanced] */
// Name to label a hole so that it is skipped
skip_name = "XXX";
// Hole diameter at widest point
hole_diameter = 7.8;
// Hole Sides
hole_sides = 6;
// Label width
label_width = 10;
// Label depth
label_depth = 2;
// Label font
label_font = "Liberation Sans:style=Bold";
// Label size
label_font_size = 8;
// Radius of the container chamfer
chamfer_radius = 5;

// CUSTOMIZER VARIABLES END

module go() {
    // Localised tidy variables
    labels = hole_labels;
    h_depth = hole_depth;
    hl_gap = hole_to_label_gap;
    col_gap = min_column_gap;
    row_gap = min_row_gap;
    border = max(min_border, chamfer_radius);
    container_depth = min_container_depth;
    s_name = skip_name;
    h_diameter = hole_diameter;
    h_sides = hole_sides;
    l_height = label_font_size;
    l_width = label_width;
    l_depth = label_depth;
    font = label_font;
    font_size = label_font_size;
    font_fudge = 0;
    fillet_radius = min(min_border, chamfer_radius);

    // Quicky print debug values
    /*
    labels = [["?.?"]];
    h_depth = 5;
    container_depth = 10;
    border = 8;
    fillet_radius = 5;
    */

    // Constants
    X = 0;
    Y = 1;
    Z = 2;
    // Vertex colision avoidance values
    d = 0.1;
    dd = 2 * d;
    dddd = 4 * d;

    rows = len(labels);
    cols = max([for (r = [0:rows-1]) len(labels[r])]);
    h_radius = h_diameter / 2;

    // Size of one hole and label
    unit_size = [max(h_diameter, l_width), h_diameter + hl_gap + l_height];
    echo(unit_size=unit_size);

    // Size of overall container
    box_x = (border * 2) + (cols * unit_size[X]) + ((cols - 1) * col_gap);
    box_y = (border * 2) + (rows * unit_size[Y]) + ((rows - 1) * row_gap);
    box_z = max(container_depth, h_depth + 2);
    echo(box_x=box_x, box_y=box_y, box_z=box_z);

    module hole_and_label(x, y, label) {
        // Place a hole and label at the supplied offet
        h_centre_x = x + unit_size[X] / 2;
        h_centre_y = y - h_radius;
        // echo(h_c_x=h_centre_x, h_c_y=h_centre_y);
        translate([h_centre_x, h_centre_y, box_z - h_depth])
            if (h_sides)
                cylinder(r=h_radius, h=h_depth + 1, $fn=h_sides);
            else
                cylinder(r=h_radius, h=h_depth + 1);
        label_x = x + unit_size[X] / 2;
        label_y = y - h_diameter - l_height - hl_gap - font_fudge;
        translate([label_x, label_y, box_z - l_depth]) {
            *cube([l_width, l_height, l_depth + 1]);
            linear_extrude(height=l_height)
                text(label, font=font, size=font_size, halign="center");
        }

    }

    module holes_and_labels() {
        // Place all the holes and labels
        function x_offset(c) = border + c * (unit_size[X] + col_gap);
        function y_offset(r) = border + r * (unit_size[Y] + row_gap);

        for (row = [0:rows - 1]) {
            r_labels = labels[row];
            for (col = [0:cols - 1]) {
                label = r_labels[col];
                if (label == undef) {
                    echo("Skipping");
                } else {
                    yo = box_y - y_offset(row);
                    xo = x_offset(col);
                    // Check that this is not the skipping label
                    if (label != s_name) {
                        // echo(r=row, c=col, p=[xo, yo], label=label);
                        hole_and_label(xo, yo, str(label));
                    }
                }
            }
        }
    }

    module bevels() {
        // Build the edge bevels
        translate([-dd, -dd, -dd])
            difference() {
                // Oversized box
                cube([box_x + dddd, box_y + dddd, box_z + dddd]);
                // Subtract area to keep
                translate([dd, dd, dd])
                    hull() {
                        for (x = [fillet_radius, box_x - fillet_radius]) {
                            for (y = [fillet_radius, box_y - fillet_radius]) {
                                for (z = [0, box_z - fillet_radius]) {
                                    translate([x, y, z])
                                        sphere(r=fillet_radius+d);
                                }
                            }
                        }
                    }
                // Subtract center window inside borders
                translate([border, border, -1])
                    cube([box_x - 2 * border, box_y - 2 * border, box_z + 2]);
            }
    }

    // Build the final product
    difference() {
        // Outline
        cube([box_x, box_y, box_z]);
        // Subtract holes and labels
        holes_and_labels();
        // Subtract bevels
        bevels();
    }
}

go();
```


[User]
I'm looking to create a customizable box using OpenSCAD. I'd like to be able to easily modify the dimensions of the box using customizer variables. The box should be a simple cube. I need to control the X, Y, and Z dimensions independently, and also want to use the build_plate library, specifically, to set the build plate size on which my cube is displayed (but it doesn't have to affect the final output).

I need the following customizer variables:
*   `x_measurement`: a numerical input with options 5, 10, 20, and 25. This controls the X dimension of the box.
*   `y_measurement`: a numerical input with preset sizes; 5:small, 10:medium, 20:large, 25:extra large. This will set the Y dimension of the box.
*   `z_measurement`: a numerical input with a minimum value of 5 and a maximum of 25 to set the Z dimension of the box.
*   `text_box`: a numerical input, this is not really going to be used.
*   `another_text_box`: another numerical input that will not be used either.
*   `number_drop_down_box`: a drop-down box with numbered options from 0 to 10 (inclusive).
*   `text_drop_down_box`: a drop-down box with the text options "yes", "no", and "maybe".
*   `labeled_drop_down_box`: a drop-down box with the text options "small", "medium", "large", and "supersized", but using numerical values of 1, 5, 10, and 50, respectively.
*  `numerical_slider`: a slider with a minimum value of 0 and maximum of 10.
* `build_plate_selector`: a drop-down to select from the following build plates, "Replicator 2", "Replicator", "Thingomatic", and "Manual" - use the appropriate numerical values associated with each.
* `build_plate_manual_x`: when "Manual" is selected for `build_plate_selector`, this numerical input allows the user to specify the X dimension of the build plate. Default of 200, minimum 100, maximum 400.
* `build_plate_manual_y`: when "Manual" is selected for `build_plate_selector`, this numerical input allows the user to specify the Y dimension of the build plate. Default of 200, minimum 100, maximum 400.

The cube should be centered on the build plate, with it's base sitting at z=0.

Please generate the OpenSCAD code to achieve this. Make sure to use the `build_plate.scad` library.

[Assistant]
customizer_template.scad:
```
//	Thingiverse Customizer Template v1.2 by MakerBlock
//	http://www.thingiverse.com/thing:44090
//	v1.2 now includes the Build Plate library as well
//	v1.3 now has the cube sitting on the build platform - check out the source to see how!

//	Uncomment the library/libraries of your choice to include them
//	include <MCAD/filename.scad>
//	include <pins/pins.scad>
//	include <write/Write.scad>
	include <utils/build_plate.scad>

//CUSTOMIZER VARIABLES

//	This section is displays the box options
//	Measurement of box on the X axis
x_measurement = 20;	//	[5,10,20,25]

//	Measurement of box on the Y axis
y_measurement = 20;	//	[5:small, 10:medium, 20:large, 25:extra large]

//	Measurement of box on the Z axis
z_measurement = 20;	//	[5:25]

//	This section demonstrates how we can create various options

text_box = 10;

//	This is the explanation text
another_text_box = 10;

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

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

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

//	This creates a slider with a minimum and maximum
numerical_slider = 1;	//	[0:10]

//	This option will not appear
hidden_option = 100*1;

//	This option will also not appear
//	another_hidden_option = 101;

//	This section is creates the build plates for scale
//	for display only, doesn't contribute to final object
build_plate_selector = 3; //[0:Replicator 2,1: Replicator,2:Thingomatic,3:Manual]

//	when Build Plate Selector is set to "manual" this controls the build plate x dimension
build_plate_manual_x = 200; //[100:400]

//	when Build Plate Selector is set to "manual" this controls the build plate y dimension
build_plate_manual_y = 200; //[100:400]

//CUSTOMIZER VARIABLES END

//	This is just a Build Plate for scale
build_plate(build_plate_selector,build_plate_manual_x,build_plate_manual_y);

//	This is the cube we've customized!
translate([0,0,z_measurement/2]) cube([x_measurement, y_measurement, z_measurement], center=true);
```


[User]
I'd like to create a customizable soccer ball puzzle, similar to the one in the linked Thingiverse design. I want to be able to choose between a pentagon or hexagon as the main piece that contains a symbol and is cut into the soccer ball, specify the radius of the ball, the shell thickness of the pieces, the gap spacing between pieces, and the symbol displayed on the main piece. The symbol needs to be centered on the piece.

Specifically, I'd like the OpenSCAD design to:

1.  Use a parametric approach for all dimensions.
2. Allow the user to select either a "pentagon" or "hexagon" type of piece.
3.  Include a `radius` parameter for the overall size of the sphere.
4.  Include a `shell_thickness` parameter to control how thick the puzzle pieces are.
5.  Include a `spacing` parameter to control the gap between puzzle pieces.
6.  Include a `text` parameter that allows any text to be displayed (including symbols).
7.  Include a `font` parameter for the text displayed.
8.  Make sure the text is centered and is appropriately sized for the piece.
9.  Include a concave cut out into the overall soccer ball.

I expect the output to include at least one scad file, but it might be more if that makes the design easier to follow. I'd like the basic structure of the soccer ball to be generated via the same generalized pentagon and hexagon approach shown in the example.

[Assistant]
character_puzzle_soccer.scad:
```
radius = 30;
text = "♪";
font = "Courier New";
piece = "pentagon"; // [pentagon, hexagon]
spacing = 0.3;
shell_thickness = 3;

// create a generalized pentagon by length.
// Parameters:
//     length : the side length
//     spacing : the gap between a pentagon or a hexagon
module generalized_pentagon(length, spacing = 0.5) {
    r = 0.5 * length / sin(36);
	s = (r - spacing / 2) / r;

    color("black")
	    rotate(18)
		     linear_extrude(length, scale = 1.42215)
		        scale([s, s, s])
			        children();
}

// create a generalized hexagon by length.
// Parameters:
//     length : the side length
//     spacing : the gap between a pentagon or a hexagon
module generalized_hexagon(length, spacing = 0.5) {
    r = 0.5 * length / sin(30);
	s = (r - spacing / 2) / r;

    color("white")
	     linear_extrude(length - length * 0.02125, scale = 1.42215)
		    scale([s, s, s])
		        children();
}

// a placeholder pentagon, one generalized pentagon and two generalized hexagons.
// Parameters:
//     length : the side length
//     spacing : the gap between the pentagon and hexagon
module generalized_pentagon_based_sub_comp(length, spacing = 0.5) {
	pentagon_circle_r = 0.5 * length / sin(36);

	a = 37.325;

	offset_y = 0.5 * length * tan(54) + pentagon_circle_r * cos(a);
	offset_z = 0.5 * length * tan(60) * sin(a);

	translate([0, -offset_y, -offset_z])
	    rotate([a, 0, 0])
		    generalized_hexagon_based_sub_comp(length, spacing) {
			    children(0);
				children(1);
			}
}

// two generalized hexagons and one generalized pentagon.
// Parameters:
//     length : the side length
//     spacing : the gap between the pentagon and hexagon
module generalized_hexagon_based_sub_comp(length, spacing = 0.5) {
    children(1);

	length_center_to_side = 0.5 * length * tan(54);

    a = -37.325;

	offset_y = 0.5 * length * (tan(54) * cos(a) + tan(60));
	offset_z = length_center_to_side * sin(a);

	rotate(120) translate([0, offset_y, offset_z])
	    rotate([a, 0, 0])
	        generalized_pentagon_hexagon(length, spacing) {
			    children(0);
			    children(1);
			}

}

// a generalized pentagon and a generalized hexagon.
// Parameters:
//     length : the side length
//     spacing : the gap between the pentagon and hexagon
module generalized_pentagon_hexagon(length, spacing = 0.5) {
	pentagon_circle_r = 0.5 * length / sin(36);

	children(0);

	a = 37.325;

	offset_y = 0.5 * length * tan(54) + pentagon_circle_r * cos(a);
	offset_z = 0.5 * length * tan(60) * sin(a);

	rotate(144) translate([0, -offset_y, -offset_z])
	    rotate([a, 0, 0])
		    children(1);
}

// a half of generalized soccer polyhedron.
// Parameters:
//     line_length : the side length of pentagons and hexagons
//     spacing : the gap between the pentagon and hexagon
module generalized_half_soccer_polyhedron(line_length, spacing = 0.5) {
	pentagon_circle_r = 0.5 * line_length / sin(36);
	offset_y = pentagon_circle_r * cos(36);

	children(0);

	for(i = [0:4]) {
		rotate(72 * i)
		    generalized_pentagon_based_sub_comp(line_length, spacing) {
			    children(0);
				children(1);
			}
	}
}

// a generalized soccer polyhedron.
// Parameters:
//     line_length : the side length of pentagons and hexagons
//     spacing : the gap between the pentagon and hexagon
//     center : center it or not
module generalized_soccer_polyhedron(height, spacing = 0.5, center = true) {
    line_length = height / 6.65;

	offset_for_center = center ? height / 2: 0;

	translate([0, 0, -offset_for_center]) union() {
		translate([0, 0, -line_length + line_length * 6.64875])
		    generalized_half_soccer_polyhedron(line_length, spacing) {
			    generalized_pentagon(line_length, spacing) children(0);
			    generalized_hexagon(line_length, spacing) children(1);
			}

		rotate(36) mirror([0, 0, 1]) translate([0, 0, -line_length])
		    generalized_half_soccer_polyhedron(line_length, spacing) {
			    generalized_pentagon(line_length, spacing) children(0);
			    generalized_hexagon(line_length, spacing) children(1);
			}
	}
}

// create a pentagon according the height of the soccer polyhedron
module pentagon_for_soccer_polyhedron(height) {
    line_length = height / 6.65;
    circle(0.5 * line_length / sin(36), $fn = 5);
}

// create a hexagon according the height of the soccer polyhedron
module hexagon_for_soccer_polyhedron(height) {
    line_length = height / 6.65;
    r = 0.5 * line_length / sin(30);

    circle(r, $fn = 6);
}

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

// create a pentagon according the height of a soccer puzzle
module pentagon_for_soccer_puzzle(height, spacing) {
    line_length = height / 6.65;
	r = 0.5 * line_length / sin(36);
	s = (r - spacing * 4) / r;

	difference() {
		circle(r, $fn = 5);

		for(i = [1:2:9]) {
		    rotate(36 * i)
			    translate([r / 1.4, 0, 0])
		            circle(r / 4.5, $fn = 48);
		}
	}

	for(i = [1:2:9]) {
	    rotate(36 * i)
		    translate([r / 1.4, 0, 0])
			    scale([s, s, s])
				    circle(r / 4.5, $fn = 48);
	}
}

// create a hexagon according the height of a soccer puzzle
module hexagon_for_soccer_puzzle(height, spacing) {
    line_length = height / 6.65;
    r = 0.5 * line_length / sin(30);
	s = (r - spacing * 4) / r;

	difference() {
		circle(r, $fn = 6);

		for(i = [0:2]) {
			rotate(90 + i * 120)
				translate([r / 1.325, 0, 0])
					circle(r / 4.5, $fn = 48);
		}
	}

	for(i = [0:2]) {
		rotate(90 + i * 120)
			translate([r / 1.325, 0, 0])
				scale([s, s, 1])
				    circle(r / 4.5, $fn = 48);
	}
}

// create a soccer puzzle
module soccer_puzzle(radius, concave, shell_thickness, spacing) {

	height = (radius + 2) * 2;

	difference() {
		intersection() {
		    if(concave == "pentagon") {
				generalized_soccer_polyhedron(height, spacing) {
					pentagon_for_soccer_puzzle(height, spacing);
					hexagon_for_soccer_polyhedron(height);
				}
			} else if(concave == "hexagon") {
				generalized_soccer_polyhedron(height, spacing) {
				    pentagon_for_soccer_polyhedron(height);
				    hexagon_for_soccer_puzzle(height, spacing);
			    }
			}

			sphere(radius, $fn = 48);
		}

		sphere(radius - shell_thickness, $fn = 48);
	}
}

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

// a generalized pentagon and a generalized hexagon for a puzzle.
// Parameters:
//     length : the side length
//     spacing : the gap between the pentagon and hexagon
module generalized_pentagon_based_sub_for_puzzle(length, spacing = 0.5) {
	pentagon_circle_r = 0.5 * length / sin(36);

	generalized_pentagon(length, spacing) children(0);

	a = 37.325;

	offset_y = 0.5 * length * tan(54) + pentagon_circle_r * cos(a);
	offset_z = 0.5 * length * tan(60) * sin(a);

	for(i = [0:4]) {
		rotate(72 * i) translate([0, -offset_y, -offset_z])
			rotate([a, 0, 0])
				generalized_hexagon(length, spacing) children(1);
	}
}

module pentagon_puzzle(radius, shell_thickness, spacing) {
    height = (radius + 2) * 2;
    line_length = height / 6.65;

	difference() {
		intersection() {
			translate([0, 0, line_length * 5.64875  -height / 2])
				generalized_pentagon_based_sub_for_puzzle(line_length, spacing) {
    pentagon_for_soccer_polyhedron(height);
	hexagon_for_single_soccer_puzzle_circles_only(height, spacing);
}

			sphere(radius, $fn = 48);
		}
		sphere(radius - shell_thickness, $fn = 48);
	}
}

// create a hexagon according the height of the soccer polyhedron
module hexagon_for_single_soccer_puzzle(height, spacing) {
    line_length = height / 6.65;
    r = 0.5 * line_length / sin(30);

	difference() {
		circle(r, $fn = 6);

		for(i = [0:2]) {
			rotate(90 + i * 120)
				translate([r / 1.325, 0, 0])
					circle(r / 4.5, $fn = 48);
		}
	}
}

// create circles around a hexagon according the height of the soccer polyhedron
module hexagon_for_single_soccer_puzzle_circles_only(height, spacing) {
    line_length = height / 6.65;
    r = 0.5 * line_length / sin(30);
	s = (r - spacing * 4) / r;

	rotate(90)
		translate([r / 1.325, 0, 0])
			scale([s, s, 1])
				circle(r / 4.5, $fn = 48);
}

module hexagon_puzzle(radius, shell_thickness, spacing) {
    height = (radius + 2) * 2;
    line_length = height / 6.65;

	//rotate([37.325, 0, 0])
	difference() {
		intersection() {
			translate([0, 0, line_length * 5.5836  -height / 2])
				generalized_hexagon(height / 6.65, spacing)
				    hexagon_for_single_soccer_puzzle(height, spacing);

			sphere(radius, $fn = 48);
		}
		sphere(radius - shell_thickness, $fn = 48);
	}
}

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

// create a pentagon according the height of the soccer polyhedron
module pentagon_for_soccer_puzzle_with_text(height, text, font) {
	difference() {
		pentagon_for_soccer_polyhedron(height);
		rotate(-18) text(text, font = font, valign = "center", halign = "center", size = height / 7);
	}
}

module pentagon_puzzle_with_text(radius, text, font, shell_thickness, spacing) {
    height = (radius + 2) * 2;
    line_length = height / 6.65;

	difference() {
		intersection() {
			translate([0, 0, line_length * 5.64875  -height / 2])
				generalized_pentagon_based_sub_for_puzzle(line_length, spacing) {
    pentagon_for_soccer_puzzle_with_text(height, text, font);
	hexagon_for_single_soccer_puzzle_circles_only(height, spacing);
}

			sphere(radius, $fn = 48);
		}
		sphere(radius - shell_thickness, $fn = 48);
	}

	pentagon_puzzle(radius - 1, shell_thickness - 1, spacing);
}

// create a hexagon according the height of the soccer polyhedron
module hexagon_for_single_soccer_puzzle_with_text(height, text, font, spacing) {
	difference() {
		hexagon_for_single_soccer_puzzle(height, spacing);
		translate([0, -height / 45, 0]) rotate(180) text(text, font = font, valign = "center", halign = "center", size = height / 7);
	}
}

module hexagon_puzzle_with_text(radius, text, font, shell_thickness, spacing) {
    height = (radius + 2) * 2;
    line_length = height / 6.65;

	difference() {
		intersection() {
			translate([0, 0, line_length * 5.5836  -height / 2])
				generalized_hexagon(height / 6.65, spacing)
				    hexagon_for_single_soccer_puzzle_with_text(height, text, font, spacing);

			sphere(radius, $fn = 48);
		}
		sphere(radius - shell_thickness, $fn = 48);
	}
	hexagon_puzzle(radius - 1, shell_thickness - 1, spacing);
}

if(piece == "pentagon") {
    pentagon_puzzle_with_text(radius, text, font, shell_thickness, spacing);
} else if(piece == "hexagon") {
    hexagon_puzzle_with_text(radius, text, font, shell_thickness, spacing);
}

```


[User]
Okay, I'm looking to create a universal quadpod mount for a telescopic fiberglass pole, specifically the DX Wire 12.5m pole which has a 42mm diameter. I want a parametric design in OpenSCAD so I can easily tweak it for different pole sizes and materials. The current version uses a 25mm wide base arm and a 20mm thick base, with a 15mm wall thickness around the pole holder, and M6 screws. I’m using 15x2mm or 20x2mm aluminum strips for the arms, depending on the size of the pole I'm mounting.

I’m envisioning a design with the following parts:

1.  **A Central Base:** This will be the core piece holding the pole. It should have a 42mm diameter hole for the pole and a wall around it. It will need four arms extending outward, and a way to attach the mid-arm pieces. I want the central piece to be sturdy, with the main body made from a cylinder with supporting cube arms. I'd like to be able to adjust the wall thickness around the pole hole, the width and thickness of the base arms. And it should use through holes for screws to hold the arm pieces in place. The main central base should have screw holes so I can attach the arms to the central base. I need to be able to specify the spacing of the holes and their diameter.

2.  **Mid-Arm Pieces:** These are simple connecting blocks that will bolt to both the central base and the end-arm pieces. They need a screw hole on either end and should be easily adjustable in terms of length and width/height, with a uniform cross-section.

3.  **End-Arm Pieces:** These pieces will connect to the mid-arms, and have a through-hole for mounting to other objects. I want the mounting hole on the end to be perpendicular to the plane of the arm itself.

4.  **A Parametric Knob:** Finally, I’ll need a parametric knob to tighten the screw. I've seen code for this before, and the basic design would be a star knob with a stem and space for a nut. I’d like to adjust the number of points on the star, the diameter, height and stem height of the knob and have nut capture features at the top and/or the base. I want to be able to specify the shaft diameter, and have a small easing percentage for fitment. It uses basic shapes and a rotate_extrude.

I need a separate scad file for each component: central base, middle arm, end arm and the knob. All of the files should be parametric. Let me know if you need any other information. I am not including any additional scad files or relying on external libraries. I'm looking for the parametric design for all the parts described, starting with the basics using the parameters I described and then moving on to more complicated parts.

[Assistant]
universal_quad_pod.scad:
```
// Universal quadpod
// central part
// OK1CDJ 2015

$fn=50;
base_width = 25; // lenght of each base arm
base_thickness = 20; // thickness of the base
holder_wall = 15; // wall thickness arroud mast
hole_dia = 42; // size of the hole for the center mast
screw_dia=6;   // hole for screw
arm_width=20; // with of arm
spacer=3;     // space in arm

module holder()
{
	difference(){
		union(){
			translate([hole_dia/2+holder_wall-2,-arm_width/2,0])
			cube([base_width,arm_width,base_thickness],center=false);
		   rotate([0,0,180])translate([hole_dia/2+holder_wall-2,-arm_width/2,0])
			cube([base_width,arm_width,base_thickness],center=false);
			rotate([0,0,90])translate([hole_dia/2+holder_wall-2,-arm_width/2,0])
			cube([base_width,arm_width,base_thickness],center=false);
			rotate([0,0,270])translate([hole_dia/2+holder_wall-2,-arm_width/2,0])
			cube([base_width,arm_width,base_thickness],center=false);

       	cylinder(h = base_thickness , d =hole_dia+holder_wall*2, center = false);

	}

		cylinder(h = base_thickness+50, d= hole_dia, center=true);
		translate([0,0,base_thickness/2])rotate([90,0,0])

		translate([-(hole_dia/2+holder_wall+base_width/2),0,0])cylinder(h=100,d=5,center=true);
        translate([0,0,base_thickness/2])rotate([90,0,0])
        translate([(hole_dia/2+holder_wall+base_width/2),0,0])cylinder(h=100,d=5,center=true);

		translate([0,(hole_dia/2+holder_wall+base_width/2),base_thickness/2])rotate([90,0,90])
		cylinder(h=100,d=5,center=true);
		translate([0,-(hole_dia/2+holder_wall+base_width/2),base_thickness/2])rotate([90,0,90])
		cylinder(h=100,d=5,center=true);
		rotate([0,0,90]) translate([hole_dia/2-2,-1,-2])
			cube([hole_dia/2+holder_wall+base_width,spacer,base_thickness+4],center=false);
	}
}

union()
{
holder();
}
```
quadpod_middle_arm.scad:
```
// Universal quadpod by OK1CDJ
// midle part of arm
cube_width=20;
cube_lenght=30;
cube_height=20;
screw_dia=6;
difference(){
    cube([cube_width,cube_lenght,cube_height], center=true);
    cylinder(h = 20 , d = screw_dia, center=true);

}
```
quadpod_and_arm.scad:
```
// Universal Quadpod end part of the arm
cube_width=20;
cube_lenght=35;
cube_height=20;
screw_dia=6;
hole_dia=10;
difference(){
    cube([cube_width,cube_lenght,cube_height], center=true);
    translate([0,-cube_lenght/2+7,0])cylinder(h = cube_height+2 , d = screw_dia, center=true);
    rotate([0,90,0])translate([0,hole_dia/2,0])cylinder(h = cube_width+2 , d = hole_dia, center=true);
}
```
parametricknob.scad:
```
// by Hank Cowdog
// 2 Feb 2015
//
// based on FastRyan's
// Tension knob
// Thingiverse Thing http://www.thingiverse.com/thing:27502/
// which was downloaded on 2 Feb 2015
//
// GNU General Public License, version 2
// http://www.gnu.org/licenses/gpl-2.0.html
//
//This program is free software; you can redistribute it and/or
//modify it under the terms of the GNU General Public License
//as published by the Free Software Foundation; either version 2
//of the License, or (at your option) any later version.
//
//This program is distributed in the hope that it will be useful,
//but WITHOUT ANY WARRANTY; without even the implied warranty of
//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//GNU General Public License for more details.
//
//
//
//
//
//
// Finger points are the points on a star knob.
// Finger holes are the notches between each point.
// Larger values make for deeper holes.
// Too many/too deep and you may reduce knob size too much.
// If $TaperFingerPoints is true, the edges will be eased a little, making
// for a nicer knob to hold/use.
//

//Number of points on the knob
FingerPoints		= 5;   			//[3,4,5,6,7,8,9,10]

TaperFingerPoints	= true;			// true

//Diameter of the knob, in mm
KnobDiameter		= 22;			//[40:150]

//Thickness of knob, including the stem, in mm:
KnobTotalHeight 	= 8;			//[10:thin,20:normal,30:thick, 40:very thick]

//Ratio of stem to total height smaller makes for less of a stem under the knob:
StemHeightPercent =30.0/100.0;			// [0.3:0.8]

FingerHoleDiameter	=KnobDiameter/2.;

// The shaft is for a thru-hole.  Easing the shaft by a small percentage makes for
// easier insertion and makes allowance for ooze on 3D filament printers

//Diameter of the shaft thru-bolt, in mm
ShaftDiameter = 6;                   	//

ShaftEasingPercentage = 5/100.0;  // 10% is plenty

//
// Include Nut Captures at base of stem and/or on top of part
// If using a hex-head bolt for knob, include Top Nut Capture only.
// including both top and bottom captures allows creation of a knob
// with nuts top and bottom for strength/stability when using all-thread rod
//

//Include a nut capture at the base (always has one on the top):
BaseNutCapture = 0;				// [1:Yes , 0:No]

TopNutCapture = 1;				//[1:Yes , 0:No]

NutFlatWidth = 1.75 * ShaftDiameter;
NutHeight =     0.87 * ShaftDiameter;
SineOfSixtyDegrees = 0.86602540378/1.0;

NutPointWidth = NutFlatWidth /SineOfSixtyDegrees;

StemDiameter= KnobDiameter/2.0;
StemHeight = KnobTotalHeight  * StemHeightPercent;

EasedShaftDiameter = ShaftDiameter * (1.0+ShaftEasingPercentage);

difference() {

// The whole knob
	cylinder(h=KnobTotalHeight, r=KnobDiameter/2, $fn=50);

// each finger point
	for ( i = [0 : FingerPoints-1] )
	{
    		rotate( i * 360 / FingerPoints, [0, 0, 1])
    		translate([0, (KnobDiameter *.6), -1])
		union() {

// remove the vertical part of the finger hole
    			cylinder(h=KnobTotalHeight+2, r=FingerHoleDiameter/2, $fn=60);

// taper the sides of the finger points
			if(TaperFingerPoints) {
				rotate_extrude(convexity = 10, $fn = 60)
					translate([FingerHoleDiameter/2.0, 0, 0])
					polygon( points=[[2,-3],[-1,6],[-1,-3]] );

			}
		}
	}

// Drill the shaft and nut captures
	translate([0, 0, KnobTotalHeight+1]) scale([1, 1, -1])
	union() {
//The thru-shaft
		cylinder(h=KnobTotalHeight+2, r=EasedShaftDiameter/2., $fn=50);

// Drill the nut capture
		if (1 == BaseNutCapture) {
			cylinder(h=NutHeight + 1, r=NutPointWidth/2.0, $fn=6);
		}
	}

// Drill the 2nd nut capture
	if (1 == TopNutCapture) {
		translate([0, 0, -1])
			cylinder(h=NutHeight + 1, r=NutPointWidth/2.0, $fn=6);
	}

// Torus removal to transition knob into stem
	translate([0, 0, KnobTotalHeight])
	rotate_extrude(convexity = 10, $fn = 50)
		translate([StemDiameter, 0, 0])
		circle(r = StemHeight, $fn = 50);

// taper the ends of the points
	if(TaperFingerPoints) {
		rotate_extrude(convexity = 10, $fn = 50)
		translate([KnobDiameter/2, 0, 0])
		polygon( points=[[-2,-3],[1,6],[1,-3]] );
	}
}

```


[User]
Hey, I'm looking to get an OpenSCAD design for a customizable, stackable box system. I have a few specific features in mind, and I'd like to be able to control them with parameters.

First, the basic box should have adjustable length, width, and height. I'd also like to be able to add a label on the front of the box. The label should be customizable in terms of the text itself, the font size, how far it sticks out from the box face, and its position left/right and up/down on the front.

Next, I want internal dividers. I should be able to control whether or not dividers are added running along the length or width of the box, and independently specify how many dividers to include in each direction and the divider's thickness.

I'd also really like an option for a locking system so the boxes can be connected when stacked. I need to be able to turn this on or off, and I want the locking system to be compatible with a lid, which I also need to be optional. It should also include rings on the side of the box for the locking mechanism. If the box is the bottom box of a stack, I don't need the bottom. I should be able to specify that.

Essentially, I need to control whether each of these features is present. So the main parameters should include:
*   `box_length`
*   `box_width`
*   `box_height`
*   `box_label`
*   `font_size`
*   `box_label_width`
*   `box_label_movement_left_right`
*   `box_label_movement_up_down`
*   `box_separators_over_length` (yes/no)
*   `box_separator_number_length`
*   `box_separators_over_width` (yes/no)
*   `box_separator_number_width`
*   `separator_thickness`
*   `lock_system` (yes/no)
*   `lid` (yes/no)
*   `box` (yes/no)
*   `down_box` (yes/no) - specifies if it's the bottom box of the stack
*   `rings` (yes/no)
I think this is all the parameters I need for the design.

Could you generate an OpenSCAD file, or files if necessary, that implement this design? It would be great if the code is well-commented so I can follow how it works. I don't need to include any external libraries, just the core OpenSCAD functionality.

[Assistant]
stackable_box_final.scad:
```
//the length of the box
box_length = 150;
//the width of the box
box_width  = 100;
//the height of the box
box_height  = 40;
//Box label
box_label = "your text" ;
//Font size
font_size = 12;
//Define how far the lable will come out of the box
box_label_width = 5;//[2:12]
//Moves label to the right or left
box_label_movement_left_right = 3;//[0:100]
//Moves label up or down
box_label_movement_up_down = 5;//[0:100]
//Do you want box separators over the length (yes/no)?
box_separators_over_length = "yes";//[yes,no]
//How many do you want?
box_separator_number_length = 2;
//Do you want box searators over the width (yes/no)?
box_separators_over_width = "yes";//[yes,no]
//How many do you want?
box_separator_number_width = 3;
//How thick do you want the separators?
separator_thickness = 2;
//Do you want a locking system (yes/no)?
lock_system = "yes";//[yes,no]
//Do you want a lid (yes/no)?
lid = "yes";//[yes,no]
//Do you want the box (yes/no)?
box = "yes";//[yes,no]
//Is this the most bottom box? Removes the floor for stacking
down_box = "no";//[yes,no]
//Do you want to print the rings (yes/no)?
rings = "yes";//[yes,no]

//the box
module box(width, length, height, label,down){
    translate([0,0,-(height/2)+1.5])
    cube([width+1.1, length+1.1,3], center = true);
if (down == "no"){
    translate([0,0,-(height/2)])
    cube([width-6, length-6,5], center = true);}
    translate([-width/2,-length/2,0])
    minkowski(){
        translate([(width/2), (length/2) , 0])
        cylinder(h= height/2, r= width/50, center=true, $fn=100);
    render() difference(){
    cube([width, length, height/2],center = true);
    translate([0,0,0])
    cube([width-2, length-2, height/2],center = true);}}
//the text on the box
    rotate([90,0,0])
    translate([-width/box_label_movement_left_right,box_label_movement_up_down,(length/2)])
    linear_extrude(height = label, $fn=100){
        text(box_label, font_size);}}
//print the box
if (box == "yes"){
box(box_width,box_length,box_height, box_label_width,down_box);}
//the separators
if (box_separators_over_length == "yes"){
    for (i = [-box_length/2:box_length/box_separator_number_length:box_length/2])
    {translate([0,i,0])
        cube([box_width,separator_thickness, box_height -8],center = true);}}

if (box_separators_over_width == "yes"){
    for (i = [-box_width/2:box_width/box_separator_number_width:box_width/2])
    {translate([i,0,0])
        cube([separator_thickness,box_length, box_height -8],center = true);}}
//the lock system
if (box == "yes"){
if (lock_system == "yes"){
translate([-box_width/2 - 3,0,(box_height/2)-2.5])
rotate([0,90,0])
cylinder(h= 7, r= 2.5, center=true, $fn=100);
translate([box_width/2 + 3,0,(box_height/2)-2.5])
rotate([0,90,0])
cylinder(h= 7, r= 2.5, center=true, $fn=100);
if (down_box == "no"){
translate([-box_width/2 - 3,0,-(box_height/2)+2.5])
rotate([0,90,0])
cylinder(h= 7, r= 2.5, center=true, $fn=100);
translate([box_width/2 + 3,0,-(box_height/2)+2.5])
rotate([0,90,0])
cylinder(h= 7, r= 2.5, center=true, $fn=100);}
//the locking rings
if (rings == "yes"){
translate ([box_width + 5,0,-box_height/2])
render() difference(){
hull($fn=100){
    {translate([-4,0,0])
    cylinder (h = 4, r= 3.5, center = true);
    translate([4.5,0,0])
    cylinder (h = 4, r=3.5, center = true);
    cube([10.5, 8, 4],center = true);}}
hull($fn=100){
    {translate([-4,0,0])
    cylinder (h = 6, r= 2.8, center = true);
    translate([4.5,0,0])
    cylinder (h = 4, r = 2.8, center = true);
    cube([5.5, 6, 4],center = true);}}}}

if (rings == "yes"){
translate ([-box_width + -5,0,-box_height/2])
render() difference(){
hull($fn=100){
    {translate([-4,0,0])
    cylinder (h = 4, r= 3.5, center = true);
    translate([4.5,0,0])
    cylinder (h = 4, r=3.5, center = true);
    cube([10.5, 8, 4],center = true);}}
hull($fn=100){
    {translate([-4,0,0])
    cylinder (h = 6, r= 2.8, center = true);
    translate([4.5,0,0])
    cylinder (h = 4, r = 2.8, center = true);
    cube([5.5, 6, 4],center = true);}}}}}}

//the lid
if (lid == "yes"){
translate ([0,-box_length -10,-box_height/2])
{{translate([0,0,-(height/2)])
    cube([box_width-6, box_length-6,5], center = true);
translate([0,0,4.5])
cube([box_width +2, box_length+2,5], center = true);}
if (lock_system == "yes"){
{translate([-box_width/2 - 3,0,4.5])
rotate([0,90,0])
cylinder(h= 7, r= 2.5, center=true, $fn=100);
translate([box_width/2 + 3,0,4.5])
rotate([0,90,0])
cylinder(h= 7, r= 2.5, center=true, $fn=100);
}  }}}

```