[User]
I'm looking to design a nozzle for a radial blower, specifically for cooling the extruder tube on my 3D printer (a K8200). I've seen some designs that use a sort of 'blownoz' shape, and I'd like to create a parametric version that I can adjust for different fan sizes and tube diameters.

Essentially, it should have a hollow, curved shape that directs airflow. It'll connect to the radial blower on one end, and then it should have a sort of clamp area that fits around the extruder tube.

I'd like the following parameters:

*   `fan_width`: Width of the fan connection (where the fan sits)
*   `fan_length`: Length of the fan connection.
*   `fan_height`: Height of the fan connection.
*   `tube_diameter`: Diameter of the extruder tube.
*   `tube_offset`: Distance from the center of the tube to the edge of the fan area.
*   `nozzle_curve_offset`: How far the nozzle area is offset from the fan connection in length
*   `nozzle_curve_width`: Width of the nozzle area, relative to the fan width
*   `nozzle_curve_height`: Height of the nozzle area
*   `wall_thickness`: Overall wall thickness of the design.

The overall shape will be a kind of hull between two rectangular prisms. The first will be at the `fan_height`, the second will be offset by `nozzle_curve_offset` with the dimensions `nozzle_curve_width` and `nozzle_curve_height` as defined above. A second hull, smaller by `wall_thickness`, will be subtracted from the first one to create a hollow object.

There should be a clamping area to secure the nozzle onto the tube. This area should be attached to the main nozzle body, and use a rectangular prism that includes the `tube_diameter` plus a bit more (adjustable, perhaps using another parameter if this is too hard to use from the main paramaters), along the main nozzle body, and a small rectangular protrusion that will allow the user to secure the nozzle using cable ties or screws. I think the clamping section should have three extruded rectangular sections, spaced along its length. The first one should be thin, the second should be slightly larger to provide clamping surface, and the third should be wider, forming the tie-down point. Also, a hole will be needed to be cut out from the clamping area to accommodate the extruder tube.

Finally, I would like a cylinder intersection to be added to the fan area to allow for the fan's airflow to easily enter the nozzle.

I'm hoping you can generate a parametric OpenSCAD file that I can use to generate this design. I don't need any external libraries.

[Assistant]
blownoz.scad:
```

l = 40;
b = 16;
w = 40;
t = 1.0;
o = 0.65;

	hull()
	{
		translate( [ 0, 0, 5 ] )
		cube( [ b+t*2, w+t*2, 10 ], center = true );
		translate( [ 0, w*o/4, l-5 ] )
		cube( [ b+t*2, w*o+t*2, 10 ], center = true );
	}

```
blownozX2.scad:
```

h = 45;
w = 16;
l = 40;
t = 1.0;
o = 0.65;

c = 0.3;
b = 27.5+c*2;
s = 5;

difference()
{
	hull()
	{
		translate( [ 0, 0, 5 ] )
		cube( [ w+t*2, l+t*2, 10 ], center = true );
		translate( [ 0, (l*o+t*2)/4, h-5 ] )
		cube( [ w+t*2, l*o+t*2, 10 ], center = true );
	}
	hull()
	{
		translate( [ 0, 0, 4.9 ] )
		cube( [ w+t*0, l+t*0, 10.2 ], center = true );
		translate( [ 0, (l*o+t*2)/4, h-5 ] )
		cube( [ w+t*0, l*o+t*0, 10.1 ], center = true );
	}
}

difference()
{
	translate( [ 0, l/2+b/2+s, t+t ] )
	{
		translate( [ 0, 0, +1.5 ] )
			cube( [ w+t*2, 4.5, 5 ], center = true );

		translate( [ 0,0, 0.75 ] )
			cube( [ w+t*2, 12-c, 1+2.5 ], center = true );

		translate( [ 0,0, 0.15 ] )
			cube( [ w+t*2, 16-c, 1+1.25 ], center = true );

		translate( [ 0,-s/2-1, -t ] )
			cube( [ w+t*2, b+s-2-t/2, t*2 ], center = true );

	}
	translate( [ 0, l/2+b/2+s, 0 ] )
		cylinder( r = 2.65, h = 100, center = true, $fn = 12 );
}

	translate( [ 0, t+l/2, t*2 ] )
		intersection()
		{
		rotate( [ 0, 90, 0 ] )
			cylinder( r = t*2, h = w+t*2, center = true, $fn = 4 );
		translate( [ 0, 5, 0 ] )
			cube( [ 100, 10+t/2, 100 ], center = true );
		}
```


[User]
I'm looking to create a 3D printable siege tower for a board game, specifically as a replacement piece for the House Arryn in a Game of Thrones-themed game. I've got some ideas for the design and parameters, and I'd like your help generating the OpenSCAD files.

The tower should have a main, central body, with a supporting base, and be able to be scaled up and down. I envision the design as having a central rectangular prism, surrounded by a supporting outer structure, supported by a wheeled base. The design will also include some cosmetic "wood" divisions for visual appeal. I'd like the option to specify the number of levels of "wood" divisions as well as the number of wheels along the base.

Here are the parameters I'd like to be able to adjust:

*   `height`: The overall height of the tower.
*   `base_of_center_section`: The width and depth of the main, central section. It will be a square prism.
*  `base_of_support_section`: The width and depth of the support section surrounding the center. This will be a square prism with a side equal to `base_of_support_section`.
*   `size_of_wood_shapes`: The thickness of the wood-like elements used for the sides and internal divisions.
*   `radius_of_wheels`: The radius of the wheels.
*   `number_of_levels`: The number of horizontal wood divisions within the tower's height.
*   `number_of_wheels`: The number of wheels supporting the tower.

The main body of the tower should be a rectangular prism, and I'd like the support structure to create a solid, closed surround. I'd like a "gate" on one of the sides, as a simple notch cut into the tower. Wheels should be simple cylinders, and the "wood" divisions should be simple rectangular prisms. Finally, I’d like the “wood” division to extend slightly past the corners, so that each division is actually a single, closed, shape. I would also like the tower to stand upright (with the Z axis representing the height of the tower.)

Could you generate the necessary OpenSCAD file or files for this design? I'm not looking to use any specific libraries, but if a standard or widely used library seems best for this application, then feel free to include that in your response.

[Assistant]
siege_tower.scad:
```
height = 25;

base_of_center_section = 10;

base_of_support_section = 5;

size_of_wood_shapes = 1;

radius_of_wheels = 2;

number_of_levels = 3;

number_of_wheels = 3;

tower(
	height,
	base_of_center_section,
	base_of_support_section,
	size_of_wood_shapes,
	radius_of_wheels,
	number_of_levels,
	number_of_wheels
);

/**
h  = height of the tower
b  = base of the center section
b2 = base of the support zone
s  = size of the wood in the sides
r  = radius of the wheels
hn = number of levels of the tower
wn = number of wheels
*/
module tower(h,b,b2,s,r,hn,wn)
	translate([-(b+b2)/2,r,-b/2]) {
	//Main body of the tower
	hull(){
		translate([b,0,0]) cube([b2,0.001,b]);
		translate([b-s,0,0]) cube([s,h,b]);
		//gate
		translate([-s,h,2*s]) cube([2*s,s,b-4*s]);
	}
	translate([0,0,s])  cube([b,h,b-2*s]);
	cube([s,h,b]);
	//wheels
	for(i = [0:wn-1]){
		translate([r + i*(b+b2-2*r)/(wn-1),0,0])
			cylinder(b,r,r);
	}
	//wood divisions
	cube([b,s,b]);
	for(i = [1:hn]) translate([0,i*h/wn]) {
		cube([b,s,b]);
		hull(){
			cube([s,s,b]);
			translate([b-s,-h/wn,0]) cube([s,s,b]);
		}
	}

}

```


[User]
I need an OpenSCAD design for a scope camera adapter. Basically, it's a tube that fits over a scope's eyepiece on one end and holds a webcam on the other. I've got some parameters I need to be able to adjust:

*   **eyepieceLength**: The length of the scope's eyepiece.
*   **eyepieceRadius**: The radius of the scope's eyepiece.
*   **eyeRelief**: The distance from the scope's eyepiece to where the camera needs to be.
*   **cameraRadius**: The radius of the camera's housing.
*   **cameraLength**: The length of the camera's mating portion (the part that goes into the adapter).
*   **cameraMicRadius**: An optional parameter for the radius of a microphone on the camera, if there is one.
*   **thickness**: The thickness of the adapter wall.

I've got a basic idea of how it should work: It's a cylinder on the scope end, transitioning to a cylinder for the camera. There needs to be a hole through the center for the camera lens to see the scope. Also, there might be a small cutout for the camera's microphone if it has one. I need to be able to adjust for various scope and camera dimensions, like for a Bushnell scope vs. a Schmidt & Bender vs. an ACOG, and for a Microsoft LifeCam or StudioCam.

I'm not sure if this is the best way to construct the object, so if you have better ideas feel free to let me know. I don't have any experience with OpenSCAD libraries, so I don't think I will need any to get started. Could you generate the files for me?

[Assistant]
ScopeCameraAdapter.scad:
```
// generated by Brief2Scad

$fn=100 * 1;

// Length of scope eyepiece (17mm for Bushnell, 22mm for Schmidt & Bender 5-25/3-27, 17mm for ACOG).
eyepieceLength = 17;

// Radius of scope eyepiece (25.5mm for Bushnell, 24.3mm for Schmidt & Bender 5-25/3-27, 16.2mm for ACOG).
eyepieceRadius = 25.5;

// Eye relief (0 for Bushnell, 65mm for Schmidt & Bender 5-25/3-27, 20mm for ACOG).
eyeRelief = 0;

// Camera radius (13.8mm for LifeCam, 14.83mm for StudioCam).
cameraRadius = 13.8;

// Camera mating portion length (18mm for LifeCam/StudioCam).
cameraLength = 18;

// Microphone radius (optional [0] - e.g. 5mm for LifeCam).
cameraMicRadius = 5;

thickness = 2 * 1;
height = eyeRelief + cameraLength; //cameraRadius * 2 + thickness;

rotate([180,0,0]) {
	difference() {
		union() {
			cylinder(eyepieceLength, eyepieceRadius + thickness, eyepieceRadius + thickness, center = true);
			translate([0, 0, -height / 2 - eyepieceLength / 2 + 0.01]) {
				cylinder(height, cameraRadius + thickness, eyepieceRadius + thickness, center = true);
			}
		}
		union ()
		{
			cylinder(eyepieceLength + 0.1, eyepieceRadius, eyepieceRadius, center = true);
			translate([0, 0, -eyepieceLength / 2 - (eyeRelief + thickness * 2) / 2]) cylinder(eyeRelief + thickness * 2, cameraRadius, eyepieceRadius, center = true);
			cylinder(1000, cameraRadius, cameraRadius, center = true);
			translate([0, cameraRadius - 2.8, 0]) cylinder(1000, cameraMicRadius, cameraMicRadius, center = true);
		}
	}
}

```


[User]
Okay, I'd like a parametric OpenSCAD design for a Bahtinov mask, but with some specific features for my telescope and printer. I need to be able to split the mask into four parts for printing on a smaller bed, plus have some customizable borders for strength and handling.

Here's what I need to control:

**Global Settings:**

*   **`part`:** A string to select which part to print (top left, top right, bottom left, bottom right, or all). Default is "all".

**Primary Dimensions:**

*   **`focus`:** The focal length of my telescope, measured in millimeters. This will affect the slot spacing.  I need it to range from 10 to 5000, with a default of 1000.
*   **`aperture`:** The diameter of my telescope's light path in mm. I'd like a range of 50 to 400, and the default should be 203.
*   **`outer_Diameter`:** The overall diameter of the mask, in mm. Range: 51 to 500. Default: 235
*   **`mask_Height`:** The thickness of the mask itself, range: 1-10mm, Default: 2.
*   **`center_Hole_Diameter`:**  The diameter of the hole in the center for the secondary mirror holder (if any). Should have a range of 0 to 90, default is 70.  If 0, there's no secondary.
*   **`outer_Height`:** The height/thickness of the outer border.  This can range from 0 to 50 mm, and defaults to 10.
*   **`inner_Height`:** The height of an inner border around the center hole - useful as a handle.  Can also be negative to put it on the back side but not recommended because of printing issues. range: -50 to +50, default: 0.
*   **`split_Distance`:** The distance between the four split parts, or -1 if it's a single piece. Range: -1 to 20. Default: -1.

**Advanced Settings:**

*   **`bahtinov_factor`:** A factor used in calculating the slot size. It should range from 50 to 200, and default to 150. If slots are too narrow for printing, this factor might need to be tweaked.
*   **`slot_Size`:** Manually specify the width of the slots. If set to 0, it should be calculated automatically using the focus and bahtinov factor. range: 0 to 10. Default: 0.
*   **`central_bars_width`:** Specify the width of the central bars (again, 0 to auto-calculate, and 0 to 20 if manual setting). Default: 0.
*   **`slots_Orientation`:** The angle of the slots in degrees. Default: 30, range: 20 to 45.
*   **`split_layer_width`:**  The layer size when calculating the separation of the splitted mask parts. Default 0.3

**Design Requirements:**

*   The slot sizes should be calculated automatically using `focus` and `bahtinov_factor` unless `slot_Size` is specified.
*   If the `central_bars_width` is set to zero the value should be equal to the `slot_size`.
*   The split parts should have structural bars connecting them, and connectors that allow the parts to fit together and lock.
*   There should be optional interlocking cylinders for the outer and inner borders.
*   The design should automatically adjust for a central obstruction diameter.
*   The code should be well-commented and easy to modify if needed.

I'm not sure if I'm making the request in the right way but I tried my best to be clear, and hopefully, this gives you what you need to make me a functional design! Let me know if I missed anything or you need clarification.

[Assistant]
Customizable_Splitable_Bahtinov_Mask.scad:
```
/*
 * A Bahtinov mask generator.
 * Units in mm, default values are for
 * a Celestron NexStar GPS 8.
 *
 * Copyright 2014, Ella Astashonok
 * License: CC-BY-SA
 *
 * Original design by Brent Burton
 * ver. 2.1.0
 */

/* [Global] */

//Slect part to print
part = "all"; //[tl:Top Left, tr:Top Right, bl:Bottom Left, br:Bottom Right, all: All parts]

/* [Primary] */

// The telescope focus lenght
focus = 1000; // [10:5000]

// The telescope light's path diameter.
aperture = 203; // [50:400]

// This is the diameter of the mask.
outer_Diameter = 235; // [51:500]

// Height of mask
mask_Height = 2; // [1:10]

// Diameter of secondary mirror holder. If no secondary, set to 0.
center_Hole_Diameter = 70; // [0:90]

// Height of outer border
outer_Height = 10; // [0:50]

//Inner border around center hole. Can be used as handle. 0 for no border. Negative values generate border on oposite side. Not recomended - hard to print.
inner_Height = 0; // [-50:+50]

// Split 4 parts distance (-1 for one pice mask)
split_Distance = -1; //[-1:20]

/* [Advanced] */

// Bahtinov factor used for calculate slot size. (should be from 150 to 200. You shouldn't need to tweak this unless your slots are too narrow for printing, in which case, divide the factor by 3)
bahtinov_factor = 150; // [50:200]

// Width of the gaps and the bars (0-for auto calculate).
slot_Size = 0; // [0:10]

// Width of central bars (0 foor same as bars and gaps)
central_bars_width = 0; //[0:20]

// Angle of slots
slots_Orientation = 30; // [20:45]

// Layer size used to calculate separation distance when making splitted mask
split_layer_width = 0.3;

outerDiameter = outer_Diameter;
maskHeight=mask_Height;
outerHeight=outer_Height;
handle = inner_Height;
bahtinov = bahtinov_factor;
slotSize = slot_Size;
slotsOrientation = slots_Orientation;
central_bars = central_bars_width;
split_layer = split_layer_width;

layer = split_Distance >= 0 || part != "all" ? split_layer : 0;
gap = slotSize > layer*2 ? slotSize : getGap(focus, bahtinov) < layer*2 ? getGap(focus, bahtinov / 3)  : getGap(focus, bahtinov);
cBars1 = central_bars > 0 ? (central_bars > gap ? central_bars : gap) : gap;
cBars = cBars1 > layer*5 || split_Distance < 0 ? cBars1 : layer*5;
centerHoleDiameter = center_Hole_Diameter > 0 && center_Hole_Diameter < cBars ? cBars : center_Hole_Diameter;
splitDistance = split_Distance > 0 && split_Distance < cBars ? cBars : split_Distance;
split = part != "all" && splitDistance < cBars*2 ? cBars*2 : (splitDistance < 0 ? 0 : splitDistance);
//split = splitDistance < 0 ? 0 : splitDistance;
handleHeight = abs(handle);
echo("Gap size: ", gap);

print_main(part);

function getGap(focus, bahtinov) = round(focus/bahtinov*100+0.5)/200;

/* create a series of bars covering roughly one half of the
 * scope aperture. Located in the +X side.
 */
module bars(gap, width, num=5, split) {
    num = round(num);
    for (i=[-num:0]) {
        translate([width/2+split,i*2*gap-split+gap]) square([width,gap], center=true);
    }
    for (i=[0:num]) {
        translate([width/2+split,i*2*gap+split+gap]) square([width,gap], center=true);
    }
}

module bahtinovBars(gap,width, split) {
    numBars = round(aperture/2 / gap / 2 + 0.5);
    // +X +Y bars
	 translate([split, split, 0])
	 intersection() {
		rotate([0,0,slotsOrientation]) bars(gap, width, numBars, 0);
		square([outerDiameter/2, outerDiameter/2], center=false);
	 }
	 // +X -Y bars
	 translate([split, -split, 0])
	 intersection() {
		rotate([0,0,-slotsOrientation]) bars(gap, width, numBars, 0);
		translate([0,-outerDiameter/2]) square([outerDiameter/2, outerDiameter/2], center=false);
	 }
	 // -X bars
	 rotate([0,0,180]) bars(gap, width, numBars, split);
}

$fn=72;
module bahtinov2D() {
    width = aperture/2+1;
    difference() {                          // overall plate minus center hole
        union() {
				difference(){							  // trims the mask to aperture size

					for( pos = [0:3]){
							rotate([0, 0, pos*90])
								translate([split, split])
									circle(r=aperture/2+1);
					}
	            bahtinovBars(gap,width, split);
				}

				for( pos = [0:90:359]){
					rotate([0, 0, pos])
						translate([split, split])
							intersection(){
								difference() {                  // makes the outer margin
	            				circle(r=outerDiameter/2);
	            				circle(r=aperture/2);
	            			}
								translate([0,layer/2,0]) square([outerDiameter/2, outerDiameter/2]);
							}
				}

            // Add center hole margin if needed:

            if (centerHoleDiameter > 0) {
					for(i = [0:90:359])
						rotate([0,0,i])
							translate([split, split])
                			intersection(){
									circle(r=(centerHoleDiameter+gap)/2);
									square([centerHoleDiameter/2+gap, centerHoleDiameter/2+gap]);
								}
            }

        	}//union

         // Add center hole if needed:
			if (centerHoleDiameter > 0) {
				for(i = [0:90:359])
					rotate([0,0,i]){
	               intersection(){
							translate([split, split])
								circle(r=centerHoleDiameter/2);
							square([centerHoleDiameter/2+split,centerHoleDiameter/2+split]);
						}
					}
			}

		}//difference

}

module fakeMask(){
	for(i=[0:90:359]){
		rotate([0,0,i])
			intersection(){
				translate([split,split,0])
					difference(){
						cylinder(r=outerDiameter/2, h=maskHeight);
						translate([0,0,-1])cylinder(r=centerHoleDiameter/2, h=maskHeight+2);
					}
				cube([outerDiameter/2+split,outerDiameter/2+split,maskHeight]);
			}
	}
}

module triangleX(x, y, z){
		translate([0, y/2,0])
       rotate([90,0,0])
			linear_extrude(height=y) polygon(points=[[0, 0],[x, 0],[0, z]], path=[[0,1,2]]);
}

module connector(width, height, depth, layer){
	w1 = width*3/2-layer*2;
	w2 = width/2-layer*2;
	h = height;
	translate([0,0,-depth/2])
		linear_extrude(height=depth)
			polygon(points=[[-w1/2, h/2], [w1/2, h/2], [w2/2, -h/2], [-w2/2, -h/2]], path=[0,1,2,3]);
}

module horisontalSplit(length,height,depth,connector_width,split){
		// Add split structural bars
		bar_hgt = height / 6;
		connector_hgt = height*2/3;
		union(){
			//%cube([cBars,layer,3],true);
			difference(){
				union(){
					translate([split+length/2,(split-bar_hgt/2+height/2), 0]) //bar1
						cube([length, bar_hgt, depth], true);
					translate([split+length/2, -(split-bar_hgt/2+height/2), 0]) //bar2
						cube([length, bar_hgt, depth], true);
				}
				if(centerHoleDiameter<=0)
					translate([split,0,-1]) //bar2
						cube([height*2/3, split*2+height, depth+2], true);
				else
					union(){
						translate([split-centerHoleDiameter/2+gap/2,split,-depth/2-1]) //bar2
							cylinder(r=centerHoleDiameter/2, h=depth+2);
						translate([split-centerHoleDiameter/2+gap/2,-split,-depth/2-1]) //bar2
							cylinder(r=centerHoleDiameter/2, h=depth+2);
					}
			}
			intersection(){
				for(i=[connector_width*3/2-bar_hgt*3:connector_width*2:length+connector_width]){
					translate([i+split,-(split-connector_hgt/2+height/2-bar_hgt+layer),0])
						connector(connector_width-layer/2, connector_hgt, depth, layer);
					//if(i+connector_width*2 <= length+connector_width*2/3)
					translate([i+split+connector_width,split-connector_hgt/2+height/2-bar_hgt+layer,0])
					rotate([0,0,180])
						connector(connector_width-layer/2, connector_hgt, depth, layer);
				}
				translate([split+length/2/*+height/2-bar_hgt-layer*/, 0, 0])
					cube([length, split*2+height, depth], true);

			}
		}

}

module cylinderLocks(dOut,dIn,w,lock_h,layer,split){
	//Making outer border lock
	assign(wall = (dOut-dIn)/2)
 		for(i=[0:90:359]){ //outer lock
	 		rotate([0,0,i])
	   	translate([split,split,0]){
				intersection(){ //OuterLock
					difference(){
						cylinder (r=dOut/2, h=lock_h); //Outer wall
						cylinder (r=dOut/2-(wall/2)+layer/2, h=lock_h); //Inner wall
	    			}
					translate([0,-w/3+layer,0])
						cube([dOut/2,w*2/3-layer,lock_h]);
				}
				rotate([0,0,90])
				intersection(){ //InterLock
					difference(){
						cylinder (r=dOut/2-(wall/2)-layer/2, h=lock_h); //Outer wall
						cylinder (r=dIn/2, h=lock_h); //Inner wall
	    			}
					translate([0,-w/3,0])
						cube([dOut/2,w*2/3-layer,lock_h]);
			}
		}
 }
}

module print_main(part="all"){
	echo ("Printing part:", part);

	translate([part!="all"?(outerDiameter/4+split/2):0,part!="all"?(outerDiameter/4+split/2):0,0])
	rotate([0,0,part=="tl"?90:part=="tr"?180:part=="br"?-90:0])
	intersection(){
		union() {
		difference(){
		union() {

		    linear_extrude(height=maskHeight) bahtinov2D();
			 //fakeMask();

			 //Outer Border
		    if(outerHeight > 0){
			 	for(i=[0:90:359]){
					rotate([0,0,i])
					  translate([split,split,maskHeight]){
							difference(){
								intersection(){
						    		union(){
										difference(){
											cylinder (r=outerDiameter/2, h=outerHeight-maskHeight); //Outer wall
											translate([0,0,-1])
												cylinder (r=outerDiameter/2-(maskHeight), h=outerHeight-maskHeight+2); //Inner wall
						    			}
									}
									cube([outerDiameter/2,outerDiameter/2,outerHeight-maskHeight]);
								}
							}
					  }
				}
			 }

			 //Inner border / handle
			 assign(ht=handle<0?handleHeight:handleHeight-maskHeight)
		    if(handleHeight > 0){
				if (centerHoleDiameter > 0){
					translate([0,0,handle<0?handle-maskHeight:0])
					union(){
						for(i=[0:90:395]){
							rotate([0,0,i])
							  translate([split,split,maskHeight]){
									difference(){
										intersection(){
							    			difference(){
												cylinder (r=(centerHoleDiameter+gap)/2, h=ht); //Outer wall
												translate([0,0,-1])
													cylinder (r=(centerHoleDiameter)/2, h=ht+2); //Inner wall
							    			}
											//translate([0,0,0])
											cube([centerHoleDiameter/2+gap/2,centerHoleDiameter/2+gap,ht]);
										}
									}
							  }
						}
					}//union
				}//holeDiameter > 0
			 }//Handle

		}//union
			//Split parts
			assign(maxpl= max(outerHeight,maskHeight,handle>0?handle:0))
			assign(maxh = max(maskHeight, handleHeight, outerHeight, maxpl-handle))
			{
				echo("maxh:",maxh," maxpl:",maxpl," handle:",handle);
				translate([0,0,(handle<0?(maxpl+handle)/2:maxpl/2)]){//(maxh/2)*sign(handle)+(handle<0?maskHeight:0)]){
					cube([outerDiameter+split*2,cBars*2/3+split*2,maxh+2],true);
					cube([cBars*2/3+split*2,outerDiameter+split*2,maxh+2],true);
				}
			}
		}//difference
			 //Make connectors
			 assign(
				con_delta = (centerHoleDiameter > 0 ? (centerHoleDiameter)/2-(cBars/4-cBars/12) : 0),
				con_length=outerDiameter/2-(centerHoleDiameter > 0 ? (centerHoleDiameter)/2 : 0)
			 )
			 for(i=[0:90:359]){
				rotate([0,0,i])
					intersection(){
						difference(){
							translate([con_delta,0,maskHeight/2]){
								if(splitDistance>=0 || part != "all")
									horisontalSplit(con_length, cBars, maskHeight, cBars, split);
								else
									translate([con_length/2,0,0])
										cube([con_length, cBars,maskHeight],true);

							}
							intersection(){
								union(){
									translate([split,split,-1])
										cylinder(r=(centerHoleDiameter+gap)/2+layer, h=maskHeight+2);
									translate([split,-split,-1])
										cylinder(r=(centerHoleDiameter+gap)/2+layer, h=maskHeight+2);
								}
								translate([split+outerDiameter/4,0,maskHeight/2])
									cube([outerDiameter/2,cBars*2/3+split*2,maskHeight+2],true);
							}
						}
						union(){
							translate([split,split,-1])
								cylinder(r=outerDiameter/2-maskHeight-layer, h=maskHeight+2);
							translate([split,-split,-1])
								cylinder(r=outerDiameter/2-maskHeight-layer, h=maskHeight+2);
						}
					}
			 }

			 //Making outer border lock
			 cylinderLocks(outerDiameter,outerDiameter-maskHeight*2,cBars,outerHeight > 0 ? outerHeight : maskHeight,layer,split);

			 //Making inner border lock
			 if(centerHoleDiameter > 0)
				assign(ht=handle<0?handleHeight:handleHeight-maskHeight)
				translate([0,0,handle<0?handle:0])
					assign(h=handle != 0 ? (maskHeight+(handle>0?handleHeight-maskHeight:handleHeight)) : maskHeight)
			 		cylinderLocks(centerHoleDiameter+gap,centerHoleDiameter,cBars,h,layer,split);

		}//union
		if (part != "all"){
			if (part == "tl"){
				translate([-(outerDiameter/2+1+split),0,handle < 0 ? handle : 0])
					cube([outerDiameter/2+1+split,outerDiameter/2+1+split,maskHeight+max(handleHeight, outerHeight, outerHeight-handle)]);
			}
			if (part == "tr"){
				translate([0,0,handle < 0 ? handle : 0])
					cube([outerDiameter/2+1+split,outerDiameter/2+1+split,maskHeight+max(handleHeight, outerHeight, outerHeight-handle)]);
			}
			if (part == "bl"){
				translate([-(outerDiameter/2+1+split),-(outerDiameter/2+1+split),handle < 0 ? handle : 0])
					cube([outerDiameter/2+1+split,outerDiameter/2+1+split,maskHeight+max(handleHeight, outerHeight, outerHeight-handle)]);
			}
			if (part == "br"){
				translate([0,-(outerDiameter/2+1+split),handle < 0 ? handle : 0])
					cube([outerDiameter/2+1+split,outerDiameter/2+1+split,maskHeight+max(handleHeight, outerHeight, outerHeight-handle)]);
			}

		}
	}//intersection

}//main_print

```


[User]
I'm trying to design a threaded screw, but I'm running into a problem with OpenSCAD's limitations regarding dynamic array manipulation when using the `polygon()` command. I've included an example file that shows the issue. Basically, the resolution of the screw profile is fixed to 16 points because the point arrays in `polygon()` are static. I want to be able to control the resolution of the screw profile with a variable.

Here are the parameters I need to control:

*   `r0`: the base radius of the screw
*   `dr`: the depth of the screw thread profile
*   `l`: the length of the screw
*   `k`: the thread lead
*   `n`: the number of starts
*   `resolution`: the number of points used to define the profile of the screw thread.

The screw profile should follow a sinusoidal function, basically a rounded v-shape, and I want to be able to vary the resolution. The example code I provided implements the profile using functions `rr`, `profile1`, and `c`.

Could you generate a parametric OpenSCAD file that allows me to adjust the resolution of the thread profile using the `resolution` variable? It's important that the final screw geometry is a solid and that the resolution variable directly controls the number of points used in the polygon for the thread profile, not the `$fn` variable in the `linear_extrude()` function. I would also like for there to be minimal visible polygon lines/artifacts, if possible (i.e. I'm mostly looking for a smooth cylinder with a thread profile). I don't need any specific libraries.

[Assistant]
OpenSCAD-static-resolution-issue.scad:
```

/*
author: Lukas Süss aka mechadense
date: 2014
licence: public domain

Description:
This demo code illustrates
how the lack of any dynammic array manipulation in OpenSCAD
effectively inhibits parametric resolution
in geometries using the polygon(...) command.
*/

// test part geometry
r0 = 3.5;
dr = 1.25; // profile depth
l  = 10;
k  = 3; // thread lead
n  = 2; // multi start
turns = l/(k*n);

roughscrew();

module roughscrew()
{
  linear_extrude(height=l,center=false,convexity=6,twist=360*turns,$fn=16)
  polygon(points=pointarray16(r0,dr,n), paths=[path16]);
}

function rr(r0,dr,n,phi) = r0 + dr*(profile1(phi*n)-1);
function profile1(x) = (1 - cos(x))/2;
function c(i) = (i/16.0)*360; // index to angle conversion

// section with necessarily hardcoded 16 vertex resolution
path16 = [0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15];
function pointarray16(r0,dr,n) = [[rr(r0,dr,n,c(0))*cos(c(0)),rr(r0,dr,n,c(0))*sin(c(0))],[rr(r0,dr,n,c(1))*cos(c(1)),rr(r0,dr,n,c(1))*sin(c(1))],[rr(r0,dr,n,c(2))*cos(c(2)),rr(r0,dr,n,c(2))*sin(c(2))],[rr(r0,dr,n,c(3))*cos(c(3)),rr(r0,dr,n,c(3))*sin(c(3))],[rr(r0,dr,n,c(4))*cos(c(4)),rr(r0,dr,n,c(4))*sin(c(4))],[rr(r0,dr,n,c(5))*cos(c(5)),rr(r0,dr,n,c(5))*sin(c(5))],[rr(r0,dr,n,c(6))*cos(c(6)),rr(r0,dr,n,c(6))*sin(c(6))],[rr(r0,dr,n,c(7))*cos(c(7)),rr(r0,dr,n,c(7))*sin(c(7))],[rr(r0,dr,n,c(8))*cos(c(8)),rr(r0,dr,n,c(8))*sin(c(8))],[rr(r0,dr,n,c(9))*cos(c(9)),rr(r0,dr,n,c(9))*sin(c(9))],[rr(r0,dr,n,c(10))*cos(c(10)),rr(r0,dr,n,c(10))*sin(c(10))],[rr(r0,dr,n,c(11))*cos(c(11)),rr(r0,dr,n,c(11))*sin(c(11))],[rr(r0,dr,n,c(12))*cos(c(12)),rr(r0,dr,n,c(12))*sin(c(12))],[rr(r0,dr,n,c(13))*cos(c(13)),rr(r0,dr,n,c(13))*sin(c(13))],[rr(r0,dr,n,c(14))*cos(c(14)),rr(r0,dr,n,c(14))*sin(c(14))],[rr(r0,dr,n,c(15))*cos(c(15)),rr(r0,dr,n,c(15))*sin(c(15))]];

```


[User]
I'm looking to create a parametric fastener design in OpenSCAD, similar in function to a Chicago screw but for 3D printing. I've attached the .scad file I've been working with for reference, but I'd like a clean, more robust version. Here are the key features:

*   **Two Main Parts:** The fastener will consist of two main components: a "core" piece and an "outer" piece (I've been calling it "outter" in my code, but lets call it outer from now on) that fits around the core. The core will have a solid central section and a head. The outer will also have a head and a sleeve that slides over the core's solid section. They will be designed to print in halves. The idea is you can press the halves of the core together, then slide both halves of the outer piece over the sleeve. Then a small amount of glue will hold it together at the interface between the core head and the outer sleeve.

*   **Parametric Design:** I need to be able to easily control the following dimensions:
    *   `HeadHeight`: Height of the head on both pieces.
    *   `HeadDiameter`: Diameter of the head on both pieces.
    *   `SleeveLength`: Length of the sleeve (the cylindrical part) on both pieces.
    *   `SleeveOutterDiameter`: Outer diameter of the sleeve on the outer piece. This will be the diameter of the hole that goes through the work.
    *   `Play`: The clearance between the core and the outer sleeve. I will also need the core inner diameter to be calculated based on the outer sleeve diameter and this clearance, so I dont have to recalculate this value.

*   **Printing:** I envision printing each piece in two halves, which should give better print quality and allow me to assemble them. The inner and outer pieces will come together without using glue, besides at the join between the core head and the outer sleeve.

*   **No Libraries:** I would prefer to stick to vanilla OpenSCAD for now. No need to use any additional libraries at this time.

*   **Orientation:** Both the core and outer parts should be aligned to the x-y plane when created, with the sleeve running along the z-axis.

Could you generate the necessary OpenSCAD code to implement this fastener? I would like it split into two files: one for the core and one for the outer piece. Thank you!

[Assistant]
Fastener.scad:
```
$fn=20;
HeadHeight=1; // [1,1.5,2,2.5,3]
HeadDiameter=10; //[7:15]
SleeveLength=10; //[1:100]
SleeveOutterDiameter=5.08;//[5.00,5.08,6,7,8,9,10]
Play=0.1;// [0.0,0.1,0.2,0.3,0.4,0.5]

HeadRadius=HeadDiameter/2;
SleeveOutterRadius=SleeveOutterDiameter/2;
SleeveInnerRadius=(SleeveOutterRadius/2)-Play;

O1=HeadDiameter/2;
O2=HeadDiameter+10;
O3=(HeadDiameter*2)+15;
O4=(HeadDiameter*3)+20;

translate([O1,0,0]) core();
translate([O2,0,0]) core();
translate([O3,0,0]) outter();
translate([O4,0,0]) outter();

module core() {
	difference() {
		union() {
			rotate([-90,0,0]) cylinder(r=SleeveInnerRadius,h=SleeveLength+(HeadHeight*2));
			rotate([-90,0,0]) cylinder(r=HeadRadius,h=HeadHeight);
		}
		translate([-HeadRadius,0,-HeadRadius]) cube([HeadDiameter+1,SleeveLength+(HeadHeight*2)+1,HeadRadius]);
	}
}

module outter() {
	difference() {
		union() {
			rotate([-90,0,0]) cylinder(r=SleeveOutterRadius,h=SleeveLength+HeadHeight);
			rotate([-90,0,0]) cylinder(r=HeadRadius,h=HeadHeight);
		}
		rotate([-90,0,0]) cylinder(r=SleeveInnerRadius+Play,h=SleeveLength+HeadHeight);
		translate([-HeadRadius,0,-HeadRadius]) cube([HeadDiameter+1,SleeveLength+HeadHeight+1,HeadRadius]);
	}
}

```


[User]
Hi! I'm looking to create a custom enclosure for a Raspberry Pi that will sit beneath a receipt printer. I'm hoping to design it in OpenSCAD so it's fully parametric.

Specifically, I need a box with two main parts: a base and a top/cover. The base will have a cutout to hold the Raspberry Pi, and the top will fit over the base to enclose it all. I need to be able to adjust the overall size to match different receipt printers.

Here are the key things I need to be customizable:

*   **Printer Dimensions:** I need to be able to specify the width and length of the printer so the base fits snugly underneath it.
*   **Cable Gap:** There needs to be a gap on the back edge of the box to allow for printer and Raspberry Pi cables. I need to be able to set the width of this gap.
*   **LED Option:** I'd like an optional mounting hole for a 5mm LED, and to be able to set whether to include this or not.
*   **Pi Standoffs:** Some Pi boards have standoffs, some don't. I need an option to include standoffs for the Pi or not. I need to be able to enable/disable these with a parameter.
*   **Box Height:** The height of the whole box needs to be adjustable.
*   **Wall Thickness:** I need to set the thickness of the box walls.
*   **Clearance Gap:** There should be a small clearance gap between the inner and outer walls, ideally adjustable.

For the Raspberry Pi itself, I'd like to account for it being around 56mm wide, 85mm long, and 20mm high, plus 2mm for the board. I also need the standoffs to lift the board about 5mm off the base of the box. I'm using a standard 2.9mm screw, but the mounting radius should be a bit bigger (around 4.5mm or 5mm), so I need a way to control that.

To be clear, I need two separate modules/functions: one to make the base, and one to make the top/cover. I'd also like to be able to optionally render just one of the parts (base or top), or render both together.

I'm thinking I'd like to make this as flexible as possible. I'm not particularly concerned about complex features like integrated supports. I’m just looking for a solid, simple box for this purpose. I'm also using OpenSCAD, but I'm not planning to use any extra libraries. I think the built in functions will suffice for this project. Can you generate the necessary code for me?

[Assistant]
PiPrinterCase.scad:
```
// Rasperry Pi Free Range / Epson TM-T88 printer stand
//
// Box for holding Raspberry Pi under an Epson TM-T88 receipt printer or similar
// Customizable.
//
// (c) 2014, Laird Popkin laird@popk.in
//

/* [Hidden] */

piWidth = 56;
piLen = 85;
piHeight = 20;
piStandHeight = 5;
piThick = 2;

screwD = 2.9;
screwR = screwD/2;
standR = screwR+2;

sy1 = 25.5;
sx1 = 18;
sy2 = piLen-5;
sx2 = piWidth-12.5;

/* [Parameters] */

// Part to render
part = 2; //[0:Assemble, 1:Base, 2:Top]
// Width in mm
printerWidth = 140;
// Length in mm
printerLen = 155;
// Cable Gap in mm
cableGap = 10;
// Want an LED hole?
haveLED = 1; //[0:No LED, 1:LED]
// LED diameter
ledD = 5;
ledR = ledD/2;
// Does the Pi have standoff holes? Older ones don't.
piStandoffs = 0; //[1:Standoffs, 0:No standoffs]

// compute pi offsets from edge (box width - pi width, etc.)

piWOffset = (printerWidth - piWidth)/2;
piLOffset = (printerLen - piLen)/2;

// Height of stand in mm
height = 40;
// Thickness of walls in mm
thick = 1;
// Gap between inner and outer wall, should be fairly loose
gap = 0.4;

clipHeight = piStandHeight+thick+piThick;

module base() {
	difference() {
		cube([printerWidth+2*thick,printerLen+2*thick,height+thick]);
		translate([thick,thick,thick]) cube([printerWidth, printerLen, height+thick]);
		translate([printerWidth/2+thick, printerLen, height-cableGap/2])
			cube([printerWidth/2, 10, height], center=true);
		translate([-thick-gap,-thick-gap,gap]) led();
		rotate([45,0,0]) translate([-1,-thick/2,-thick/2]) cube([printerWidth+2*thick+2*gap+2,thick,thick]);
		translate([0,printerLen+2*thick,0]) rotate([45,0,0]) translate([-1,-thick/2,-thick/2]) cube([printerWidth+2*thick+2*gap+2,thick,thick]);
		rotate([0,45,0]) translate([-thick/2,-1,-thick/2]) cube([thick,printerLen+2*thick+2*gap+2,thick]);
		translate([printerWidth+2*thick,0,0]) rotate([0,45,0]) translate([-thick/2,-1,-thick/2]) cube([thick,printerLen+2*thick+2*gap+2,thick]);
		}
	translate([piWOffset,piLOffset,thick]) {
		cube([piWidth,piLen,thick]);
		difference() {
			union() {
				translate([-thick,-thick,0]) cube([10,10,clipHeight]);
				translate([-thick,piLen-10+thick,0]) cube([10,10,clipHeight]);
				translate([piWidth+thick-2,-thick,0]) cube([4,10,clipHeight]);
				translate([piWidth+thick-2,piLen-10+thick,0]) cube([4,10,clipHeight]);
				}
			translate([0,0,piStandHeight]) cube([piWidth,piLen,piThick]);
			translate([thick,thick,0]) cube([piWidth-2*thick,piLen-2*thick,10]);
			}
		translate([sx1,sy1,0]) standoff();
		translate([sx2,sy2,0]) standoff();
		}
	difference() {
		translate([-thick-gap,-thick-gap,gap]) ledTube();
		translate([-thick-gap,-thick-gap,gap]) led();
		}
	}

// goes below pi to hold it up
module standoff() {
	if (piStandoffs) {
		cylinder(r=screwR,h=piStandHeight+5);
		cylinder(r=standR,h=piStandHeight);
		}
	}

// goes on top of pi to hold it down (onto standoffs)
module standon() {
	if (piStandoffs) {
		difference() {
			translate([0,0,piStandHeight+piThick]) cylinder(r=standR,h=height-piStandHeight+2*gap-piThick);
			cylinder(r=screwR+gap,h=height);
			}
		}
	}

module led() {
	if (haveLED) {
		translate([printerWidth-height/2,0,height/2+thick])
			rotate([90,0,0]) cylinder(r=ledR+gap, h=20, center=true);
		}
	}

module ledTube() {
	if (haveLED) {
		translate([printerWidth-height/2,8+thick+gap,height/2+thick]) {
			rotate([90,0,0]) cylinder(r=ledR+gap+thick, h=8, center=false);
			translate([-thick/2,-8,-height/2-thick]) cube([thick,8,height/2]);
			}
		}
	}

module cover() {
	translate([-thick-gap,-thick-gap,gap]) difference() {
		cube([printerWidth+4*thick+2*gap,printerLen+4*thick+2*gap,height+2*thick]);
		translate([thick,thick,-1]) cube([printerWidth+2*thick+2*gap, printerLen+2*thick+2*gap, height+thick+1]);
		translate([printerWidth/2+thick, printerLen, cableGap/2])
			cube([printerWidth/2, 10, height], center=true);
		led();
		translate([0,0,height+2*thick]) {
			rotate([45,0,0]) translate([-1,-thick/2,-thick/2]) cube([printerWidth+4*thick+4*gap+2,thick,thick]);
			translate([0,printerLen+4*thick+2*gap,0]) rotate([45,0,0]) translate([-1,-thick/2,-thick/2]) cube([printerWidth+4*thick+4*gap+2,thick,thick]);
			rotate([0,45,0]) translate([-thick/2,-1,-thick/2]) cube([thick,printerLen+4*thick+4*gap+2,thick]);
			translate([printerWidth+4*thick+2*gap,0,0]) rotate([0,45,0]) translate([-thick/2,-1,-thick/2]) cube([thick,printerLen+4*thick+4*gap+2,thick]);
			}
		}
	translate([piWOffset,piLOffset,thick]) {
		//cube([piWidth,piLen,thick]);
		translate([sx1,sy1,0]) standon();
		translate([sx2,sy2,0]) standon();
		}
	}

if ((part==0) || (part==1)) base();
if ((part==0) || (part==2)) cover();

```


[User]
Hi, I'm looking for help creating an OpenSCAD design for a parametric battery clip that uses M3 countersunk screws. I've seen a few designs online but they are often not very flexible. I want to be able to easily adjust it for different battery sizes and configurations.

Here's what I'm envisioning:

*   **Parametric Battery Size:** The design should be adjustable for different cylindrical battery sizes. I need to be able to specify the `CellRadius` and `CellLength` as parameters. I'll probably be using AA, AAA, and 18650 batteries primarily, but the design should be flexible enough to handle any cylindrical size.
*   **Variable Cell Count:** I want to be able to specify how many cells to hold, using a `CellCount` parameter. The cells should be placed side-by-side, and I'd like the design to handle single-cell and multiple-cell configurations.
*   **Integrated Wire Channels:** I need to incorporate channels along the side of the holder to route wires away from the cells. The size of these channels should be adjustable with a `WireRadius` parameter, and whether or not to include them at all should be controlled via a `doWireChannels` boolean parameter. This will allow me to keep the wiring tidy. I think something based on the wire gauge would make sense here. Let's assume it's for 22 AWG stranded wire initially, but I want to be able to change it.
*   **M3 Countersunk Screw Mounts:** The design should use M3 countersunk screws for mounting. I'd need corresponding holes, with recesses for the screw heads. The screws will go directly into the base of the holder and I would like a corresponding nut cutout directly on the other side, or optionally, on the same side.
*   **Terminal Design:** There should be terminals on either end of the cell(s) to make electrical contact. I'm thinking something that cradles the edge of the cells and has some room to solder a wire.
*   **Cell Grips:** There should be some kind of grip feature on the side of the cells to hold them securely in place. I was thinking something like a curved lip.
*   **Parametric mounting and gripping parameters:** The mount needs a `MountThickness` and `MountWidth`, the terminals need a `TerminalRadius`, the grips need a `GripWidth`, `GripThick`, and `GripFactor`.
*   **General parameters:**
    *   `tolerance`: The tolerance to use when cutting out the screw holes.

I'm assuming that standard M3 screws are 3mm in diameter. I'd like to use the following modules from the [BOSL2](https://github.com/revarbat/BOSL2) library if possible:

*   `MetricCountersunkScrew`
*   `MetricNut`

The user doesn't need to create any additional libraries beyond this. Could you help me create the OpenSCAD files needed for this project? It'd be great to see the entire code base all at once when it's ready, including the root file. I'm not looking for you to walk me through each step here, I'd rather just have the final code for me to use.

[Assistant]
ParametricBatteryClipUsingM3CountersunkScrews.scad:
```

// AA=7, AAA=5, 18650=9.25
CellRadius=9.25;
// AA=51, AAA=46, 18650=69
CellLength=69;
// How many?
CellCount=1;
//For 22 AWG stranded wire: adjust as needed
WireRadius=1.1;
//Add wire channels to the side for wiring management
doWireChannels=1; //[1:Yes,0:No]

/* [Hidden] */
MountThickness=3;
MountWidth=max(CellRadius/3*2,8);
TerminalRadius=4.5;
GripWidth=5;
GripThick=1.5;
GripFactor=0.6;
$fn=30;

module MetricCountersunkScrew(diameter=3, post_length=3,tapped=true,flush=true, tolerance=0.1){
	translate( flush ? [0,0,-diameter/2] : [0,0,0] )
		translate([0,0,0]) cylinder(r1=diameter/2,r2=diameter,h=diameter/2);
		if (tapped) {
 			translate([0,0,-post_length]) cylinder(r=diameter/2+tolerance,h=post_length);
		} else {
 			translate([0,0,-post_length]) cylinder(r=diameter/2+0.2+tolerance,h=post_length);
		}
}

module M3_Nut(head_height=2, tolerance=0.1, bevel=false){
 MetricNut(3.4, head_height, tolerance, bevel);
}

module MetricNut(n_rad=3.4, head_height=2.4, tolerance=0.1, bevel=false){
 // Simple cutout for an M3 nut:
 //3.4mm base radius with an additional 0.1mm tolerance, for a total of 3.5mm
 // produces a good sized hole.  3.3mm+0.1mm makes for a "tight" fit.
 echo("Tolerance",tolerance);
 echo("Total Radius", n_rad+tolerance);
 union(){
  cylinder(r=n_rad+tolerance, h=head_height, $fn=6);
  if ( bevel ) {
   // add a 45 degree bevel to the bottom of the nut
   translate([0,0,-n_rad+1.5-tolerance]) cylinder(r2=n_rad+tolerance, r1=1.5, h=n_rad-1.5+tolerance, $fn=6);
  }
 }
}

module terminalEnd(){
 difference(){
  translate([MountThickness+1,0,CellRadius+MountThickness])
  rotate([0,-90,0])
  difference(){
   union(){
    cylinder(r=TerminalRadius,h=MountThickness);
    translate([0,0,MountThickness]) cylinder(r1=TerminalRadius,r2=TerminalRadius-1,h=1);
    translate([-CellRadius,-MountWidth/2,0])cube([CellRadius,MountWidth,MountThickness]);
    translate([-CellRadius,0,0]) rotate([0,-45,180]) translate([0,-MountWidth/2,0]) cube([10,MountWidth,MountThickness]);
   }
   translate([0,0,MountThickness+1.2]) MetricCountersunkScrew(diameter=3,post_length=10);
   M3_Nut();
  }
  translate([-25,-MountWidth,-50]) cube([50,MountWidth*2,50]);
  //Wire channel:
  translate([2.5,1.5,-1]) cylinder(r=WireRadius,h=MountThickness+CellRadius+1);
 }
}

module cellGrip(){
 //top Grip Curve
 translate([0,0,CellRadius+MountThickness])
 difference(){
  union() {
   rotate([0,90,0]) cylinder(r=CellRadius+GripThick,h=GripWidth,center=true);
   rotate([0,90,0]) cylinder(r=CellRadius+GripThick*1.5,h=GripWidth/2,center=true);
  }
  rotate([0,90,0]) cylinder(r=CellRadius,h=GripWidth+1,center=true);
  translate([-GripWidth,-1.5*CellRadius,GripFactor*CellRadius]) cube([GripWidth*2,3*CellRadius,3*CellRadius]);
 translate([-GripWidth,-1.5*CellRadius,-3*CellRadius]) cube([GripWidth*2,3*CellRadius,3*CellRadius]);
 }
 //Bottom grip curve
 translate([0,0,GripFactor*CellRadius+MountThickness/2])
 rotate([0,180,0])
 difference(){
  union() {
   rotate([0,90,0]) cylinder(r=CellRadius+GripThick,h=GripWidth,center=true);
   rotate([0,90,0]) cylinder(r=CellRadius+GripThick*1.5,h=GripWidth/2,center=true);
  }
  rotate([0,90,0]) cylinder(r=CellRadius,h=GripWidth+1,center=true);
  translate([-GripWidth,-1.5*CellRadius,GripFactor*CellRadius]) cube([GripWidth*2,3*CellRadius,3*CellRadius]);
 translate([-GripWidth,-1.5*CellRadius,-3*CellRadius]) cube([GripWidth*2,3*CellRadius,3*CellRadius]);
 }
 //middle bit of the grip:
 translate([-GripWidth/2,-CellRadius-GripThick,CellRadius*GripFactor+MountThickness/2]) cube([GripWidth,GripThick,CellRadius-(CellRadius*GripFactor-MountThickness)-MountThickness/2]);
 translate([-GripWidth/4,-CellRadius-GripThick*1.5,CellRadius*GripFactor+MountThickness/2]) cube([GripWidth/2,GripThick*1.5,CellRadius-(CellRadius*GripFactor-MountThickness)-MountThickness/2]);
 rotate([0,0,180]){
  translate([-GripWidth/2,-CellRadius-GripThick,CellRadius*GripFactor+MountThickness/2]) cube([GripWidth,GripThick,CellRadius-(CellRadius*GripFactor-MountThickness)-MountThickness/2]);
  translate([-GripWidth/4,-CellRadius-GripThick*1.5,CellRadius*GripFactor+MountThickness/2]) cube([GripWidth/2,GripThick*1.5,CellRadius-(CellRadius*GripFactor-MountThickness)-MountThickness/2]);
 }
 rotate([0,0,45/2]) cylinder(r=max(CellRadius+1,MountWidth/2+WireRadius*2+1),h=MountThickness, $fn=8);

}

//testing:

 //CellModel:
 //  translate([0,0,CellRadius+MountThickness]) color("blue") rotate([0,90,0]) cylinder(r=CellRadius,h=CellLength,center=true);

module cellHolder(){
 difference(){
  union(){
   translate([CellLength/2,0,0]) terminalEnd();
   rotate([0,0,180]) translate([CellLength/2,0,0]) terminalEnd();
   difference(){
    union(){
     translate([-CellLength/2,-MountWidth/2,0]) cube([CellLength,MountWidth,MountThickness]);
     translate([GripWidth*0.6,0,0]){
      translate([CellLength/4,0,0]) cellGrip();
      rotate([0,0,180]) translate([CellLength/4,0,0]) cellGrip();
     }
     //additional support, frankly, for appearance sake.
     translate([-GripWidth*0.6,0,0]){
      translate([CellLength/4,0,0]) rotate([0,0,45/2]) cylinder(r=max(CellRadius+1,MountWidth/2+WireRadius*2+1),h=MountThickness, $fn=8);
      rotate([0,0,180]) translate([CellLength/4,0,0]) rotate([0,0,45/2]) cylinder(r=max(CellRadius+1,MountWidth/2+WireRadius*2+1),h=MountThickness, $fn=8);
     }
    }
    translate([CellLength/4,0,MountThickness]) MetricCountersunkScrew(diameter=3,post_length=10);
    rotate([0,0,180]) translate([CellLength/4,0,MountThickness]) MetricCountersunkScrew(diameter=3,post_length=10);
   }
  }
  if ( doWireChannels ){
   color("red") translate([-CellLength*0.75,MountWidth/2+WireRadius,MountThickness/2]) rotate([0,90,0]) cylinder(r=WireRadius,h=CellLength*1.5);
   color("red") translate([-CellLength*0.75,-MountWidth/2-WireRadius,MountThickness/2]) rotate([0,90,0]) cylinder(r=WireRadius,h=CellLength*1.5);
  }
 }
}

cellHolder();
if (CellCount > 1) {
  // if the separation between cells gets too small, the side channels in between get blocked... working on that
  echo("Distance between:",CellRadius+GripThick - max(CellRadius+1,MountWidth/2+WireRadius*2+1));
 for (i=[1:CellCount-1]){
  translate([0,i*(CellRadius*2+2*GripThick),0]) rotate([0,0,180*i]) cellHolder();
  translate([CellLength/4,CellRadius+GripThick+(i-1)*(CellRadius*2+2*GripThick),MountThickness/2]) cube([CellRadius*1.5,GripThick*3,MountThickness], center=true);
  translate([-CellLength/4,CellRadius+GripThick+(i-1)*(CellRadius*2+2*GripThick),MountThickness/2]) cube([CellRadius*1.5,GripThick*3,MountThickness], center=true);
 }
}

```


[User]
Hey, I'm looking to create a customizable insert for sockets or wrenches, basically a non-marring adapter. I need it to be parametric so I can easily adjust the sizes to fit different tools.

The design should have a hexagonal socket on one side, which will fit the nut, and a hexagonal section on the outside which will fit the socket. Both the inside and outside hexagon sizes should be adjustable based on the size of the tool, and I need to also be able to adjust the height of the insert. It also needs to have a bit of tolerance to allow for 3D printing, so the inside and outside dimensions need to be slightly larger than the actual tool dimensions.

Specifically, I want to be able to define:

*   `inside16`: The size of the nut in 16ths of an inch (e.g., 8 for an 8/16 or 1/2 inch nut).
*   `outside16`: The size of the socket in 16ths of an inch.
*   `shrinkinside`: Percentage adjustment for the inside dimension to account for printing tolerances.
*   `shrinkoutside`: Percentage adjustment for the outside dimension to account for printing tolerances.
*   `heightmultiplier`: A multiplier for the height of the insert based on the inside diameter.

I'd like the insert to have a cylindrical base that extends out past the hex for grip, and on the inside of the nut socket a slight chamfer or bevel is desired for easy insertion.

Could you generate a set of OpenSCAD files to accomplish this? I think it'll be a single file, but I'm open to suggestions. I don't need any external libraries for this.

[Assistant]
insert.scad:
```
//size of nut to fit in 16ths
inside16=8;
//size of socket to fit in 16ths
outside16=10;
//%shrink to allow for on inside(nut)
shrinkinside=2;
//%shrink to allow for on outside(socket)
shrinkoutside=1.75;
heightmultiplier=1;

inside=inside16/16*25.4*(1+shrinkinside/100);
outside=outside16/16*25.4*(1+shrinkoutside/100);
th=inside*heightmultiplier;

	difference(){
		union(){
			translate([0,0,th/2])hexagon(outside,th);
			cylinder(h=2,r=(outside+4)/2);
			}
		translate([0,0,th/2-1])hexagon(inside,th+2);
		cylinder(h=1,r2=inside/2,r1=inside/2+1);
		}

module hexagon(size, height) {
  boxWidth = size/1.75;
  for (r = [-60, 0, 60]) rotate([0,0,r]) cube([boxWidth, size, height], true);
}

```


[User]
I'm looking for a parametric OpenSCAD design for a battery holder, specifically for coin cell batteries. I've been messing around with some designs but I think I could use a more polished and flexible version.

Here's what I'm thinking. It needs to be able to handle different sizes of coin cells, specifically CR1225 and CR2032 (I'll probably want to add more later), so I need to be able to set the diameter and height of the battery as parameters. I also need to be able to set the wall thickness of the holder, as well as a tolerance parameter to control how snug the fit is. I want the design to have a kind of "extended" opening so the battery sits recessed and isn't totally exposed. Let's call this parameter "extra\_length".

Also, I need to be able to specify the wire hole diameter, and I'd like to be able to stack multiple batteries if I need to, so a "number\_of\_cells" parameter would be great. I'd also like a small push-out hole on one side so I can easily get the battery out when needed.

Finally, it should auto-orient to place flat on the print bed, and ideally not need any support material. I would prefer it to use cylinders and cubes for the main shapes - no crazy curves or anything. I don't have any libraries in mind so please feel free to recommend one if needed, or just go with the built-in primitives if that is better.

[Assistant]
CoinCellHolderV2.scad:
```
/*Battery dimensions in mm
CR1225 cell holder:
 diameter=12mm
 height=2.5mm
 tolerance=0.5mm
 wall thickness=2mm

CR2032 cell holder:
 diameter=20mm
 height=3.2mm
 tolerance=0.5mm
 wall thickness=2mm
*/

battery_diameter	=20.0;	// Diameter of battery
battery_height		=3.2;	// Thickness of battery
tolerance			=0.5;	// Make things a little looser
wall_thickness		=1.5;	// Wall thickness
wire_diameter		=1.5;	// Thickness of wire openings
extra_length		=2.0;	// Extends the open outwards to "hide" the battery a little bit
number_of_cells	=1;		// How many cells will be stacked

rotate([0,90,0])
{
	// Move to propper hieght and orientation
	translate([-battery_diameter/2-extra_length,0,-(battery_height*number_of_cells)-(wall_thickness/4)])
	{
		difference()
		{
			union()
			{
				difference()
				{
					// Main block
					cylinder(r=(battery_diameter/2)+tolerance+wall_thickness, h=battery_height*number_of_cells+(tolerance)+(2*wall_thickness),$fn=64);
					// Battery shape
					translate([0,0,wall_thickness])
						cylinder(r=(battery_diameter/2)+(tolerance/2), h=battery_height*number_of_cells+tolerance,$fn=64);
					// Square opening
					translate([0,-((battery_diameter/2)+2+tolerance),0])
						cube([battery_diameter+10,battery_diameter*number_of_cells+5,battery_height*number_of_cells+5]);
				}
				difference()
				{
					// Square extension
					translate([0,-((battery_diameter/2)+wall_thickness+tolerance),0])
						cube([battery_diameter/2+extra_length,battery_diameter+(2*wall_thickness)+(2*tolerance),battery_height*number_of_cells+(2*wall_thickness)+tolerance]);
					// Square hole in end
					translate([0,-((battery_diameter/2))-(tolerance/2),wall_thickness])
						cube([battery_diameter+tolerance,battery_diameter+tolerance,battery_height*number_of_cells+tolerance]);
				}
			}
			// Wire holes
			translate([0,0,-1])
				cylinder(r=wire_diameter/2, h=battery_height*number_of_cells+tolerance+10,$fn=16);
			// Battery "push out" hole
			translate([-battery_diameter/2-wall_thickness-1,0,wall_thickness+(battery_height*number_of_cells/2)+tolerance/2])
				rotate([0,90,0])
					cylinder(r=battery_height/3,h=wall_thickness+1,$fn=16);
		}
	}
}

```


[User]
Hi, I'm looking to create a parametric arm for a RAM mount system, you know, the kind with the rubberized balls. I want to be able to adjust the length and the size of the bolt used, and also choose whether to have one or two bolts holding it together.

Specifically, I need an OpenSCAD file (or files) that lets me do the following:

*   **Set the arm's length:** I want to be able to specify the distance between the centers of the two ball joints in millimeters.
*   **Choose a nut trap:** I'd like an option to include a hexagonal nut trap for easier assembly.
*   **Select the number of bolt holes:** I need to be able to choose between using one bolt in the middle or two bolts, one near each end.
*  **Pick a bolt size**: I would like to be able to use M4, M5, M6, M8, 8, 10 or 1/4 inch bolts.
*   **Ball Size:** The design should work with the standard 1" diameter RAM mount ball joints. I don't need to make the ball, just accommodate them.
*  **Arm Width:** The design should have a width of approximately 20mm.
*   **Opening Slot:** I need an opening on each end, just a slot for the ball to slide in, roughly 12mm wide.
*   **Shell Thickness:** the 'shell' surrounding the ball should have a thickness of approximately the ball_radius + 5.3 mm.
*   **Orientation:** The design should be oriented so that it is facing down by default - the bolt holes should be on top when printed.

I'm not really familiar with the specific library for the hexagon function, I believe it comes from Catarina Mota. I'd need to make sure the design uses this.

It would be really great if the design could be fully parametric based on those considerations! I'm aiming to make a replacement for something like a RAP-B-166-2U arm.

[Assistant]
RAM_Arm_v5.scad:
```
//Length of the arm, ball center to ball center, in milimeters.
length = 100;
//Do you want a nut trap?
nut_trap = "yes";//[no,yes]
//Do you want to use two bolts or just one? (for longer arms, two bolts work better.)
bolt_holes = "two";//[one,two]
//What size of bolt do you want?
bolt_type = "1/4";//[M4,M5,M6,M8,8,10,1/4]

// The hexagon subroutine is from Catarina Mota's GPL OprnSCAD Shapes Library
// Full version available at http://svn.clifford.at/openscad/trunk/libraries/shapes.scad

module hexagon(size, height) {
  boxWidth = size/1.75; // 1.75 is ~ sqrt(3)
  for (r = [-60, 0, 60]) rotate([0,0,r]) cube([boxWidth, size, height], true);
}

module makeBoltHole() {
	if ("M4" == bolt_type )
	{
		cylinder(r= 2.05 , h=shell_thickness);
	}
	if ("M5" == bolt_type )
	{
                cylinder(r= 2.55 , h=shell_thickness);
        }
	if ("M6" == bolt_type )
	{
                cylinder(r= 3.05 , h=shell_thickness);
        }
	if ("M8" == bolt_type )
	{
                cylinder(r= 4.05 , h=shell_thickness);
        }
	if ("8" == bolt_type )
	{
                cylinder(r= 2.15 , h=shell_thickness);
        }
	if ("10" == bolt_type )
	{
                cylinder(r= 2.45 , h=shell_thickness);
        }
	if ("1/4" == bolt_type )
	{
                cylinder(r= 3.25 , h=shell_thickness);
        }

	if("yes" == nut_trap)
	{
		if ("M4" == bolt_type )
		{
			translate([0,0,28]) hexagon( 7.1 , 30 );
		}
		if ("M5" == bolt_type )
		{
			translate([0,0,28]) hexagon( 8.1 , 30 );
		}
		if ("M6" == bolt_type )
		{
			translate([0,0,28]) hexagon( 10.1 , 30 );
		}
		if ("M8" == bolt_type )
		{
			translate([0,0,28]) hexagon( 13.1 , 30 );
		}
		if ("8" == bolt_type )
		{
			translate([0,0,28]) hexagon( 8.8 , 30 );
		}
		if ("10" == bolt_type )
		{
			translate([0,0,28]) hexagon( 9.6 , 30 );
		}
		if ("1/4" == bolt_type )
		{
			translate([0,0,28]) hexagon( 11.2 , 30 );
		}
	}
}

ball_radius = 12.7; // The ball you're attaching to.
arm_width = 20;
shell_thickness = ball_radius+5.3;
opening_slot = 12;

translate([0,0,17])
rotate(a=[180,0,0])
{
	difference()
	{
		union()
		{
			//Outer shells at ends
			translate([-1*(length/2),0,0]) sphere(shell_thickness, center=true);
			translate([(length/2),0,0]) sphere(shell_thickness, center=true);
			//Connecting arm
			translate([0,0,(shell_thickness)/2]) rotate([45,0,0]) cube([length,arm_width,arm_width], center=true);
		}
		union()
		{
			//Interior hollows
			translate([-1*(length/2),0,0]) sphere(ball_radius, center=true);
			translate([(length/2),0,0]) sphere(ball_radius, center=true);
			//Shave off the top
			translate([0,0,27])  cube([length*2,100,20], center=true);
			//Shave off the bottom
			translate([0,0,-8])  cube([length*2,100,20], center=true);
			//Screw hole
			if ("one" == bolt_holes )
			{
				makeBoltHole();
			}
			else
			{
				translate([(length/2) - shell_thickness,0,0]) makeBoltHole();
				translate([(length/-2) + shell_thickness,0,0]) makeBoltHole();
			}
			//Exterior lip parts
			union()
			{
				translate([-1*((length/2) + 15),0,0]) cube([20,40,opening_slot], center=true);
				translate([-1*((length/2) +  5),shell_thickness*1.5,0]) rotate([90,0,0]) cylinder(r=opening_slot/2, h=shell_thickness*3);
			}
			union()
			{
				translate([1*((length/2) + 15),0,0]) cube([20,40,opening_slot], center=true);
				translate([1*((length/2) +  5),shell_thickness*1.5,0]) rotate([90,0,0]) cylinder(r=opening_slot/2, h=shell_thickness*3);
			}
		}
	}
}

```


[User]
Hey, I'm looking to design a custom MTG deck box using OpenSCAD. I've got some pretty specific requirements, and I'd really appreciate your help generating the code.

Essentially, I want a rectangular box with a separate lid, sized to hold a variable number of standard Magic: The Gathering cards, either with or without card sleeves. I'd like to make the design parametric based on these factors:

1.  **Card Count:** I need a variable that lets me specify the number of cards the box should hold. This should be a parameter that adjusts the length of the box.

2.  **Sleeve Type:** I need a parameter to switch between "with Pro-Sleeves" and "without Pro-Sleeves". This will affect the internal dimensions of the box, specifically the width, to make sure the cards fit comfortably with or without sleeves. I'm thinking around 69 units for sleeved and 65 for unsleeved cards.

3.  **Customizable Image:** This is where things get interesting. I would like the front of the deck box to have an embedded image or pattern based on a series of coordinates generated from the "Stencil-o-Matic" tool found at chaaawa.com/stencil_factory/. I'll input these points as an array of [x,y] coordinates. These points should be used to create a 2D polygon that is then extruded to create the raised stencil. The points are scaled to a desired width, but I should be able to customize the size, rotation, and position of this design on the box front. I'll need the following variables to control the stencil:
    *   `image_size`: This will control the overall size scaling of the input coordinates.
    *   `Move_Image_Left_Right`: A variable to move the image left or right on the box face.
    *   `Move_Image_Up_Down`: A variable to move the image up or down on the box face.
    *   `image_rotation`:  A variable to rotate the image.
    *   `input`: This will contain the coordinates (an array of arrays) defining the stencil.

4. **Text Labels**:  I'd like to be able to add two lines of text to the front of the box, one above and one below the custom image. I'll need a variety of customization options here:
    *  `top_text_label`: the text for the top label.
    *  `top_text_size`: a size for the text.
    *  `top_text_rotation`: a rotation for the text.
    *   `top_text_font`: a font for the text.
     *  `bottom_text_label`: the text for the bottom label.
    *  `bottom_text_size`: a size for the text.
    *  `bottom_text_rotation`: a rotation for the text.
    *   `bottom_text_font`: a font for the text.
    *  `Move_Top_Text_Up_Down`: a variable to move the top text up and down on the box face
    *  `Move_Bottom_Text_Up_Down`: a variable to move the bottom text up and down on the box face

5.  **Box Construction:** The box should have a slightly recessed interior, a lid that fits snugly on top, and should have a small lip for the lid to grab. I should be able to specify the lid lip size with `lid_lip_size`.

For the libraries, I think you'll need to include:
*   `write/Write.scad` for the text writing.
*   `MCAD/triangles.scad` for some more complex shape generation
*   `utils/build_plate.scad`  maybe for orienting the part for 3D printing

I've provided the example code so that you can see how I intend for it to fit together and what I'm expecting as a result. I'm looking forward to seeing what you come up with!

[Assistant]
MTGDeckBox.scad:
```

/////////////////////////
//  Customizer Stuff  //
///////////////////////

// How many cards would you like to carry?
card_count = 40; //[30:40 Cards,40:60 Cards,50:80 Cards, 60:100 Cards]

card_type = 69; //[69:With Pro-Sleeves,65:Without Pro-Sleeves]

// Paste your Sencil-o-Matic code here or leave blank
input ="default_TNH";

image_size = 50; // [1:50]

Move_Image_Left_Right = 33; // [-50:50]

Move_Image_Up_Down = 45; // [10:50]

image_rotation = 0; // [0:359]

/////////////////////////
// Beat it Customizer //
///////////////////////

/* [Hidden] */

use <write/Write.scad>
use <MCAD/triangles.scad>
use <utils/build_plate.scad>

stencil_thickness =1.5 ;
offX = 3;
offY = 0;
margin = 10;
dispo_width = image_size;

points_array = (input=="default_TNH"? [[205,208],[[200.77,43.44],[199.19,44.3],[196.01,46.99],[191.68,50.99],[193.55,53.05],[194.78,55.02],[194.39,56.75],[193.34,58.01],[192.26,58.75],[191.3,58.4],[190.52,57.06],[189.37,55.5],[187.18,54.98],[184.97,54.76],[183.43,54.23],[182.43,53.13],[181.54,51.5],[180.72,49.5],[179.96,52],[179.39,54.88],[179.1,58.31],[179.3,60.89],[179.98,61.51],[181.26,61.4],[182.98,61.99],[184.42,63.43],[185,65.4],[184.53,67.2],[182.45,67.24],[180.21,67.31],[178.6,68.53],[176.8,69.81],[173.61,69.71],[169.92,69.11],[173.04,73.06],[175.78,75.84],[177.98,77],[179.42,76.56],[180.36,75.5],[181.23,74.44],[182.5,74],[183.76,74.42],[184.61,75.42],[184.5,77.17],[183.48,79.39],[182.43,81.56],[182.26,83.22],[181.67,84.61],[179.61,86.16],[176.5,87.82],[179.13,88.49],[181.82,88.86],[184.59,88.83],[186.91,88.01],[188,86],[189.01,84.07],[190.79,83.18],[192.57,83.43],[193,85.47],[193.48,88.04],[194.64,90.58],[195.74,93.09],[195.12,95.65],[193.95,98.21],[197.96,95.03],[200.97,92.5],[202.58,90.86],[202.51,89.6],[201.46,87.96],[200.3,86.11],[201.01,84.49],[202.35,83.45],[203.97,84.47],[205.96,85.55],[208.38,86],[210.8,86.66],[212.4,89.1],[213.57,91.25],[214.35,90.52],[214.81,88.07],[215,84.53],[214.57,80.85],[212.5,79.59],[210.58,78.56],[210,76.57],[210.41,74.77],[212.06,74.73],[214,74.59],[215.68,73.04],[217.6,71.37],[220.69,71.47],[224.13,72.12],[223.15,70.31],[221.83,68.37],[220.04,66.25],[218.13,64.66],[216.5,64],[215.16,64.62],[213.94,66.12],[212.8,68.23],[211.17,66.6],[210.09,64.9],[210.77,63],[211.64,60.92],[212,58.69],[212.77,56.54],[215.25,54.8],[218.5,53.23],[214.76,52.51],[211.38,52.18],[208.51,52.41],[206.51,53.53],[206,56.09],[205.63,58.44],[204.25,58.81],[202.87,57.78],[202.17,55.49],[201.38,52.78],[199.93,50.45],[198.03,48.4],[199.62,46.14],[200.61,44.41],[200.77,43.44]],[[197.72,59.03],[194.15,59.37],[191.5,60.16],[189.58,61.56],[187.77,63.38],[186.48,66.25],[186.02,70.53],[186.44,74.78],[187.56,77.78],[189.51,79.8],[192.01,81.51],[194.84,82.56],[197.58,83],[200.43,82.41],[203.53,80.98],[206.31,78.54],[208.44,75.49],[209.52,72],[209.44,68.51],[208.05,65.14],[205.36,62.01],[201.77,59.63],[197.72,59.03]],[[197.67,60.04],[194.61,60.51],[191.7,61.6],[189.45,63.4],[187.95,65.62],[187.28,68.39],[187,71.51],[187.61,74.68],[189.25,77.51],[191.96,79.6],[195.59,80.67],[199.42,80.68],[202.75,79.63],[205.33,77.53],[207,74.51],[207.62,71.16],[207.51,68.02],[206.16,65.18],[203.85,62.53],[200.8,60.68],[197.67,60.04]],[[117,105],[113.52,105.52],[111.04,107.19],[109.6,108.9],[109,109.94],[107.72,110.34],[104.65,110.5],[101.07,110.92],[98.57,111.94],[97.32,113.93],[97.18,117.14],[97.05,120.36],[95.35,121.89],[93.52,123.86],[93.17,129.69],[93.57,135.29],[94.75,138.25],[96.91,139.53],[100.1,140],[102.95,139.71],[104.5,139],[105.64,138.29],[107.5,138],[109.31,138.22],[110.32,138.75],[110.84,140.23],[111.46,142.75],[111.69,145.34],[110.83,146.42],[109.08,146.89],[106.75,147.44],[104.81,148.13],[104,148.95],[104.66,149.8],[106.25,150.55],[108.34,151.48],[110.21,152.74],[111.9,153.62],[113.54,153.62],[115.24,153.49],[117.07,154.04],[118.53,154.57],[119,154.05],[119.51,153.37],[120.75,153.17],[123.45,153.2],[127.5,153.08],[130.66,152.76],[131.25,152.34],[130.37,151.73],[130,150.99],[130.66,150.27],[132.25,149.75],[133.62,149.31],[131.5,148.64],[128.65,147.92],[126,147.19],[123.96,145.9],[123.24,142.98],[123.34,140.08],[123.95,138.01],[126.45,136.86],[133.04,136.63],[141.16,136.75],[142.22,134.41],[142.77,132.23],[142,130.5],[141.2,128.76],[142.02,126.45],[143.35,123.98],[140.82,121.24],[138.86,118.79],[137.68,116.75],[136.96,115.51],[136.1,115],[135.23,114.41],[134.5,112.99],[133.16,111.11],[130.84,109.42],[128.25,108.49],[126.26,108.45],[124.61,108.31],[122.81,107.03],[120.42,105.5],[117,105]],[[288.07,115.2],[287.5,108.61],[283.14,113.56],[278.81,118.81],[274.53,124.5],[271.2,129.74],[269.14,133.9],[268.34,137.59],[268,141.68],[268.43,145.81],[269.46,149.57],[271.43,152.57],[274.43,154.54],[278.35,155.57],[282.85,156],[287.4,155.55],[291.45,154.45],[294.75,152.31],[297.02,148.68],[298.35,144.41],[297.89,139.98],[295.98,134.8],[292.77,128.64],[289.34,121.84],[288.07,115.2]],[[123.96,123.47],[123.28,123.66],[123,124.94],[123.12,126.4],[123.39,127],[123.84,126.57],[124.35,125.53],[124.47,124.32],[123.96,123.47]],[[128.44,130.12],[127.26,130.33],[125.75,130.69],[124.51,131.28],[124,132.07],[124.22,132.72],[124.75,132.97],[125.85,132.51],[127.44,131.47],[128.54,130.47],[128.44,130.12]],[[109.79,131],[109.33,131.29],[109.5,131.99],[110.58,133.04],[112.31,134.14],[114.5,135.29],[112.6,133.15],[110.98,131.63],[109.79,131]],[[292.94,135],[292.09,135.92],[291.1,138.15],[290.5,140.89],[291.12,142.65],[292.3,143.6],[293.56,144],[294.66,143.45],[295.46,142.11],[295.54,140.02],[294.87,137.61],[293.81,135.77],[292.94,135]],[[244.5,198.09],[240.72,198.72],[235.86,200.13],[230.21,202.1],[231.3,204.98],[232.67,207.31],[234.44,208.87],[236.5,209.86],[234.45,209.93],[232.65,209.63],[231.2,208.8],[230.35,207.42],[230,205.8],[229.76,204.53],[229.19,204],[227.86,204.81],[225.8,206.75],[223.51,209.63],[221.61,212.7],[220.47,216.58],[220,221.45],[220.43,226.24],[222,229],[223.95,230.41],[225.85,231],[228.12,231.48],[230.98,232.64],[234.26,234.28],[233.67,240.65],[233.42,245.59],[233.64,248.51],[234.6,249.56],[236.11,250],[237.64,249.24],[238.1,246.25],[238.2,242.5],[239.25,245.75],[240.5,248.17],[242.14,249],[243.56,248.41],[244,246.5],[244.29,244.73],[245,244],[245.71,244.44],[246,245.5],[246.41,246.56],[247.39,247],[248.55,246.56],[249.36,245.5],[250.07,244.44],[250.97,244],[251.7,244.85],[252,246.89],[252.44,249.15],[253.58,250.39],[254.82,250.82],[255.58,251],[255.88,248.51],[256,242.51],[256,234.03],[261.95,232.27],[266.76,230.39],[268.95,228.21],[269.69,225.79],[269.99,223.2],[269.66,220.12],[268.88,216.5],[267.21,212.56],[264.76,208.7],[261.73,205.65],[258.62,205.49],[255.5,206.08],[257.82,204.72],[259.45,203.39],[258.71,202.17],[256.26,200.9],[252.39,199.51],[248.06,198.48],[244.5,198.09]],[[145.57,200.1],[142.67,200.39],[140,200.96],[138.4,201.69],[139,202.32],[141.09,202.99],[144,203.77],[146.41,204.65],[147.28,205.56],[146.38,206.32],[144.51,206.82],[142.88,207.32],[142.54,208.07],[144.93,208.73],[149.87,209],[155.35,209.37],[158.56,210.42],[159.71,211.64],[159.75,212.58],[158.47,212.76],[156.44,212.16],[153.88,210.99],[155.44,213.22],[156.54,215.34],[157,217.32],[157.59,218.79],[159,219.71],[160.53,220.79],[161,223.12],[160.68,225.15],[159.91,226],[158.98,225.42],[158.29,224.01],[157.67,222.77],[156.89,222.57],[156.26,222.49],[156,221.52],[155.6,220.46],[153.99,221],[150.6,221.92],[145.24,222.63],[139.22,223.49],[134.2,224.75],[130.73,226.46],[128.45,228.38],[127.43,230.98],[127,234.32],[127.49,238.08],[128.65,241.68],[130.95,244.86],[134.13,247.58],[138.65,249.54],[145.43,250],[151.39,249.73],[155.2,249.08],[157.41,248.23],[159.5,247.48],[160.1,246.61],[156.5,245.21],[151.5,243.64],[158.45,242.8],[164.03,241.77],[167.67,240.48],[169.59,238.82],[171.05,236.91],[171.73,235.34],[171.8,234.47],[170.39,234.48],[167.5,235],[164.57,235.49],[163.07,235.4],[163.57,234.34],[165.45,232.46],[167.67,230.72],[169,230],[169.82,229.25],[170.84,227.45],[171.66,224.94],[172,222.49],[171.52,219.37],[170.38,215.28],[168.63,211.17],[166.72,208],[165.24,206.4],[165.41,207.5],[166.07,209.79],[166.62,212.5],[167.11,215.5],[165.5,212],[163.58,208.71],[161.24,205.73],[157.9,203.33],[153.61,201.48],[149.2,200.46],[145.57,200.1]],[[136.71,204.06],[134.56,204.35],[132.5,204.95],[130.52,206.52],[128.56,209.11],[126.63,212.44],[129.45,210.22],[131.67,208.65],[133.04,208],[133.46,208.66],[133.4,210.25],[133.27,211.48],[133.56,211.28],[134.98,210.23],[137.57,209.42],[139.99,208.83],[141,208.32],[140.7,207.43],[139.96,205.93],[138.58,204.59],[136.71,204.06]],[[143.01,210.56],[140.52,209.71],[143.07,213.01],[145.5,215.58],[147.78,217.11],[149.8,217.34],[151.52,216.34],[152.54,214.74],[152.78,213.13],[151.7,211.88],[148.98,211.46],[145.79,211.18],[143.01,210.56]],[[232.26,217],[229.12,217.63],[226.45,219.65],[224.72,221.88],[224,223.52],[224.41,224.74],[225.41,225.93],[228.18,226.7],[233.16,226.8],[239.5,226.5],[239.81,223.84],[239.47,221.33],[237.87,219.09],[235.32,217.57],[232.26,217]],[[259.14,217],[255.74,217.54],[253.2,219.29],[251.6,221.63],[250.78,224.04],[250.5,226.5],[255.43,226.81],[259.6,226.86],[262.68,226.54],[264.47,225.51],[265,223.42],[264.7,221.05],[263.96,218.93],[262.29,217.45],[259.14,217]],[[155.81,225.05],[154.5,226.3],[151.77,229.24],[149.27,232.29],[148.48,233.81],[149.17,233.97],[150.21,233.75],[151.8,232.18],[153.81,229.13],[155.36,226.23],[155.81,225.05]],[[243.07,228.08],[242.22,228.1],[241.47,231.38],[241.08,234.8],[241.13,236.4],[242.35,236.8],[244.75,237.33],[248,237.95],[247.93,234.23],[247.63,231.01],[247,228.5],[246.3,227.63],[246.07,230.19],[245.73,232.98],[245,234.5],[244.28,234.14],[243.98,232.31],[243.71,229.91],[243.07,228.08]]]: input);

input_width = points_array[0][0];
input_height= points_array[0][1];
sTrace = dispo_width/input_width;
stencil_height = input_height*sTrace + 2*margin;

/////////////////////////
//   Moduletown USA   //
///////////////////////

module box_lid() {
	difference(){
		cube([card_type + 4,4 + card_count,18]);
		translate([1,1,10]) cube([card_type + 2,2 + card_count,18]);
		translate([2,2,2]) cube([card_type,card_count,18]);
	}
}

module box() {
	translate([4 + card_type,25 + card_count*3,0]) {

	rotate([0,0,180]){
	union(){
		translate([0,-10 + card_count,0]){
			difference() {
				translate([0,20,0]) cube([card_type + 4,4 + card_count,87]);
				scale(1.001) translate([card_type + 3.99,19.975,97]) rotate([0,180,0]) box_lid();
				translate([2,22,2]) cube([card_type,card_count,87]); // Inside
				translate([card_type/2-5,25,1]) #write("TNH",h=5,t=.5,font="write/orbitron.dxf");
			}
		}
	translate([card_type/2 + 2,9.8 + card_count,Move_Top_Text_Up_Down]) rotate([90,top_text_rotation,0]) write(top_text_label,h=top_text_size,t=1.5, font=top_text_font, center=true);
	translate([card_type/2 + 2,9.8 + card_count,Move_Bottom_Text_Up_Down]) rotate([90,bottom_text_rotation,0]) write(bottom_text_label,h=bottom_text_size,t=1.5, font=bottom_text_font, center=true);
	translate([Move_Image_Left_Right,9.8 + card_count+2,Move_Image_Up_Down]) rotate([90,image_rotation,0]) pattern();
	}
}
}
}

module pattern(){
	union(){
		translate([0, 0, stencil_thickness/2])
		translate([offX, offY, -stencil_thickness/2])
		scale([sTrace, -sTrace, 1])
		translate([-200, -150, 0]) {
			union() {
				for (i = [1:len(points_array) -1] ) {
					linear_extrude(height=stencil_thickness*2) {polygon(points_array[i]);}
				}
			}
		}
	}
}

//////////////////////////
// Put it all together //
////////////////////////

rotate([0,0,180]){ // Orient to fit build platform
		translate([-card_type/2,-card_count-7,0]){ // Attempt to center at origin
			box();
			scale([1.01,1.01,1.01]) box_lid();
	}
}

```


[User]
I'm trying to create a parametric design for seven-segment displays that can be easily adapted for different sizes and applications. I'd like to have both a 3D version for printing and a 2D version for laser cutting or plotting.

Here's what I'm thinking:

**Core Requirements for both 2D and 3D versions:**

*   **Parametric Grid:** I need a variable for the grid spacing (let's call it `grid`). This will determine the overall size of the segments and the spacing between them.
*   **Parametric Unit Height/Thickness:** I need a variable `unit_height` that defines the thickness of the 3D version and the z-depth of the 2D version.
*   **Parametric Hole Size:** I need a variable `hole_size` to define the diameter of the holes used to "cut out" the segments.
*   **Number of Units:** A variable `number_of_units` to define how many of these seven-segment digits are displayed in a row.
*   **Seven-Segment Layout:** Each display unit consists of seven segments.  Each segment should have 3 cutouts evenly spaced, to get the correct shape.

**Specific 3D Requirements:**

*   The base of the 3D model should be a rectangular prism.
*   The holes for the segments should be created using cylinders.

**Specific 2D Requirements:**

*   The base of the 2D model should be a rectangle.
*   The holes for the segments should be created using circles.
*   I need the output to be 2 dimensional

I'd like the code to be in separate SCAD files - one for the 3D model, and one for the 2D model. This will make it easier to manage.

Can you generate the OpenSCAD files for these designs?

[Assistant]
sevensegment_push_through.scad:
```
grid=2.54;
unit_height=2.54;
hole_size=5;

number_of_units=1;

//  - segment
module horizontal_segment()
 {
union()
{
translate([2*grid,0,-1])
cylinder(h=unit_height+2,r=hole_size/2,$fn=16);
translate([5*grid,0,-1])
cylinder(h=unit_height+2,r=hole_size/2,$fn=16);
translate([8*grid,0,-1])
cylinder(h=unit_height+2,r=hole_size/2,$fn=16);
}
}

// | Segment
module vertical_segment()
{
union()
{
translate([0,2*grid,-1])
cylinder(h=unit_height+2,r=hole_size/2,$fn=16);
translate([0,5*grid,-1])
cylinder(h=unit_height+2,r=hole_size/2,$fn=16);
translate([0,8*grid,-1])
cylinder(h=unit_height+2,r=hole_size/2,$fn=16);
}
}

module display_unit()
{
difference()
{
translate([-2*grid,-2*grid,0])
cube ([14*grid,24*grid,unit_height]);

translate([0,0,0])
horizontal_segment();
translate([0,10*grid,0])
horizontal_segment();
translate([0,20*grid,0])
horizontal_segment();

translate([0,0,0])
vertical_segment();
translate([0,10*grid,0])
vertical_segment();
translate([10*grid,0,0])
vertical_segment();
translate([10*grid,10*grid,0])
vertical_segment();
}
}

for (i=[1:14:number_of_units*14])
{
translate([i*grid,0,0])
display_unit();
}

```
sevensegment_2d.scad:
```
grid=1.27;
unit_height=3;
hole_size=3.1;

number_of_units=1;

//  - segment
module horizontal_segment()
 {
union()
{
translate([2*grid,0])
circle(h=unit_height+2,r=hole_size/2,$fn=16);
translate([5*grid,0])
circle(h=unit_height+2,r=hole_size/2,$fn=16);
translate([8*grid,0])
circle(h=unit_height+2,r=hole_size/2,$fn=16);
}
}

// | Segment
module vertical_segment()
{
union()
{
translate([0,2*grid])
circle(h=unit_height+2,r=hole_size/2,$fn=16);
translate([0,5*grid])
circle(h=unit_height+2,r=hole_size/2,$fn=16);
translate([0,8*grid])
circle(h=unit_height+2,r=hole_size/2,$fn=16);
}
}

module display_unit()
{
difference()
{
translate([-2*grid,-2*grid,0])
square ([14*grid,24*grid]);

translate([0,0,0])
horizontal_segment();
translate([0,10*grid,0])
horizontal_segment();
translate([0,20*grid,0])
horizontal_segment();

translate([0,0,0])
vertical_segment();
translate([0,10*grid,0])
vertical_segment();
translate([10*grid,0,0])
vertical_segment();
translate([10*grid,10*grid,0])
vertical_segment();
}
}

for (i=[1:14:number_of_units*14])
{
translate([i*grid,0,0])
display_unit();
}

```


[User]
Hey, I'm looking to design a rod end bearing for 3D printing and could use some help with the OpenSCAD code. I want it to be fully parametric so I can adjust it for different projects.

Basically, the bearing consists of a spherical ball that fits inside a housing, and then a rod extends out from the side.

Here are the key parameters I need to be able to control:

*   **`d1`**: Diameter of the hole through the ball for the rod.
*   **`d2`**: Diameter of the rod itself (the part that goes into the hole).
*   **`d3`**: Diameter of the ball.
*   **`ew`**: Width of the outer edge of the housing around the ball.
*  **`l1`**: Overall length of the rod part extending from the housing.
*  **`l2`**: Depth of the rod hole, which will be shorter than `l1`.
*   **`w1`**: Width of the rod end section.
*  **`T`**: Thickness of the housing.
*   **`tol`**: Tolerance value for the ball housing fit, to make the ball move freely (but not too loosely) - it should be a positive value.

The bearing should be designed so that:
1. The ball is a sphere.
2.  The housing should have a spherical cutout for the ball and a cylindrical cutout for the ball's center.
3. The rod end should be a rectangular extension on the side of the housing and should include a cylindrical rod hole.

I'd also like to make sure that we use a reasonable number of segments for the curves, so that it looks nice. Would also be great if it's easy to adjust the tolerance, so I can print different versions.

Can you generate the necessary OpenSCAD code for me? I'd rather not use any external libraries if possible.

[Assistant]
rod_end_bearing.scad:
```
//Rod end bearing
//Author: Nikolaj Goodger
//Date: 11/03/2014

//Parameters
//Ball hole diameter
d1=5;
//Rod hole diameter
d2=5;
//Ball diameter
d3=15;
//Outer edge width
ew=3;
//End length
l1=25;
//Rod hole depth
l2=10;
//End width
w1=10;
//Thickness
T=10;
//Tolerance
tol=0.3;

//Model
difference(){
	sphere(r=d3/2, $fn=60);
	cylinder(r=d1/2,h=d3+1,$fn=40,center=true);
	rotate([180,0,0])
		translate([0,0,T/2])
			cylinder(r=(2*ew+d3)/2,h=d3/2,$fn=40,center=false);
	translate([0,0,T/2])
		cylinder(r=(2*ew+d3)/2,h=d3/2,$fn=40,center=false);
}
difference(){

	cylinder(r=(2*ew+d3)/2,h=T,$fn=40,center=true);
	sphere(r=d3/2+tol, $fn=60);
}
rotate([0,90,0])
{
	difference(){
			translate([0,0,-l1/2])
				cube(size=[T,w1,l1],center=true);
		sphere(r=d3/2+tol+1, $fn=60);
		translate([0,0,-l1])
		cylinder(r=d2/2,h=l2,$fn=40,center=false);

	}
}

```


[User]
I'd like to request an OpenSCAD design for a tetrahemihexahedron. I've seen a few different approaches online, and I'd like something that can be customized.

The key thing is that the real tetrahemihexahedron has faces that intersect, so any printable version is necessarily an approximation.  I'd like the design to use the approach of adding small fillets along the intersection lines to make it manifold. The existing design I saw used four tetrahedra as the base, so something like that would be good.

Here are some specific requirements:

*   **Parametric Size:** I need to be able to specify the overall size of the polyhedron, say by defining the length of an edge.
*   **Orientation:** It would be nice to have a parameter to switch the printing orientation. One option should orient it so it sits on one of the triangular faces, and the other option should make it sit on a "hollow" face (an interior facing triangle).
*   **Fillet Size:** The fillet size should be adjustable too, so I can control how closely the approximation matches the ideal shape. It should be possible to set this to zero if desired to see what that looks like.
*   **Library:** Please don't use any external libraries for this design.
*   **Modularity:** Please make sure to define at least these modules: `onetetra()`, `octahedron()`, `fillet()`, and `tetrahemihexahedron()` for clarity and ease of modification, as seen in the example I found.

I'm looking for a solution that will allow me to customize the size, the printing orientation, and fillet size. Thanks!

[Assistant]
tetrahemihexahedron.scad:
```
// Approximation of a tetrahemihexahedron
//
// Bill Owens   March 12, 2014
//
// This is only an approximation of the polyhedron since the true shape
// isn't manifold and can't be rendered correctly.
// The right-triangle faces are actually quarters of square faces that
// intersect with each other, so in order to make the model manifold I
// built it out of four tetrahedra and added small fillets along each
// intersection line.

// for Thingiverse Customizer

/* Global */

// Length of one edge of the object (mm)
size = 50;

// Printing orientation
orientation = "hollow"; // [solid:On a solid triangle,hollow:On a hollow triangle]

module onetetra() {
polyhedron(
	points = [
		[0.5,0.5,0],			// 0
		[-0.5,0.5,0],		// 1
		[0,0,1/sqrt(2)],		// 2 (top vertex)
		[0,0,0],				// 3 (center)
    ],
    triangles = [
		[0,2,1],
		[0,1,3],
		[0,3,2],
		[1,2,3],
	]);
}

module octahedron() {
polyhedron(
	points = [
		[0.5,0.5,0],			// 0
		[-0.5,0.5,0],		// 1
		[0,0,1/sqrt(2)],		// 2 (top vertex)
		[-0.5,-0.5,0],		// 3
		[0.5,-0.5,0],			// 4
		[0,0,-1/sqrt(2)]		// 5 (bottom vertex)
    ],
    triangles = [
		[0,2,1],
		[1,2,3],
		[3,2,4],
		[4,2,0],
		[0,1,5],
		[1,3,5],
		[3,4,5],
		[4,0,5]
	]);
}

module fillet() {
intersection() {
	cube([0.01,0.01,sqrt(2)], center=true);
	octahedron();
}
}

module tetrahemihexahedron() {
union() {
	onetetra();
	rotate(180,[0,0,1]) onetetra();
	rotate(180,[1,1,0]) onetetra();
	rotate(180,[-1,1,0]) onetetra();
	fillet();
	rotate(90,[-1,1,0]) fillet();
	rotate(90,[1,1,0]) fillet();
}
}

// Decide whether the model should sit on a solid or hollow side
if (orientation == "solid") {
	scale(size) rotate(90-atan(1/sqrt(2)),[0,1,0]) tetrahemihexahedron();
} else {
	scale(size) rotate(90-atan(1/sqrt(2)),[1,0,0]) tetrahemihexahedron();
}

```


[User]
Hey, I'm looking to create a customizable vase design in OpenSCAD, and I have a pretty specific idea in mind. I want to be able to morph one regular polygon into another, basically creating a faceted vase using their convex hull.

Specifically, I need to be able to control a few things:

*   The number of sides for the bottom polygon.
*   The radius of the bottom polygon (from the center to a corner).
*   The number of sides for the top polygon.
*   The radius of the top polygon (again, from center to corner).
*   The overall height of the vase.
*   A twist angle in degrees that rotates the top polygon relative to the bottom.

Ideally, the vase should be a solid object suitable for printing without infill or top layers. And I'd like the design to automatically trim off any vertical extension of the larger polygon, so it looks clean at both ends.

Also, could you make sure to use the `regular_shapes.scad` library from MCAD? I've used it before and I'm pretty familiar with it.

Let me know if you need any more information.

[Assistant]
polygon-morph-vase.scad:
```
// Customizable Polygon Morph Vase

use <MCAD/regular_shapes.scad>;

// Number of sides of bottom polygon
bottom_sides = 4;

// Circumradius of bottom polygon (mm from center to corner)
bottom_radius = 25;

// Number of sides of top polygon
top_sides = 8;

// Circumradius of top polygon (mm from center to corner)
top_radius = 40;

// Height of vase in millimeters
vase_height=60;

// Clockwise rotation of top relative to bottom in degrees
vase_twist=0;

// Keep the bottom at z 0 if the bottom is trimmed
translate([0, 0, bottom_radius > top_radius ? -1 : 0])

// Trim vertical extension from end with larger radius
difference() {

	// The convex hull of the top and bottom shape forms the body of the vase.
	hull() {

		// Bottom
		linear_extrude(height=1)
		reg_polygon(
			sides=bottom_sides,
			radius=bottom_radius);

		// Top
		translate([0, 0, vase_height])
		rotate([0, 0, -vase_twist])
		linear_extrude(height=1)
		reg_polygon(
			sides=top_sides,
			radius=top_radius);
	}

	if (bottom_radius > top_radius) {
		linear_extrude(height = 1) circle(r = bottom_radius + 1);
	} else {
		translate([0, 0, vase_height]) linear_extrude(height=2) circle(r = top_radius + 1);
	}
}
```


[User]
I'd like a customizable OpenSCAD design for a vase. I want it to be based on extruding a regular polygon, but with the option to scale and rotate the top of the extrusion. It needs to be a solid model, designed for printing without infill or top layers.

Specifically, the user should be able to control:

*   The number of sides of the base polygon.
*   The total height of the vase.
*   The radius of the polygon at the bottom (circumradius).
*   The radius of the polygon at the top (circumradius).
*   The rotation of the top polygon in degrees relative to the bottom.
*   The number of slices to use during the extrusion; a higher number means a smoother surface.

The design should utilize the `regular_shapes.scad` library from the MCAD library.

I've included some information in a comment that I'd like you to keep in mind: It should be a solid model for printing without infill or top layers. I think that's everything. Thanks!

[Assistant]
twisted-polygon-vase.scad:
```
// Customizable Twisted Polygon Vase

use <MCAD/regular_shapes.scad>;

/* [Vase Design] */

// Vases is an extruded regular polygon
number_of_sides = 5;

// Height of vase (mm)
vase_height = 80;

// Bottom circumradius (mm from center to corner)
bottom_radius = 25;

// Top circumradius (mm from center to corner)
top_radius = 40;

// Clockwise twist of top surface relative to bottom (degrees).
top_rotation = 72;

// Low values yield a faceted appearance. High values yield a smooth appearance. No effect if 0 rotation.
slice_layers = 4;

/* [Hidden] */

top_scale = top_radius / bottom_radius;

linear_extrude(
		height = vase_height,
		twist  = top_rotation,
		slices = slice_layers,
		scale  = top_scale)

reg_polygon(
		sides  = number_of_sides,
		radius = bottom_radius);

```