[User]
I'm looking to create a custom socket organizer for my allen wrench sockets, and I'd like it to be parametric so I can adjust it easily. I have 6 sockets, and they are 3/8" drive. I'd like to have them in a rectangular array, arranged in 2 rows and 3 columns. The receptacles should have a little bit of clearance, maybe 0.3mm or so, to allow the sockets to fit well without being too tight. I need a base to hold everything together too. I'd like to be able to label each socket, and I'd like the labels to be numbers from 10 down to 4, following the standard clockwise order (so the top left socket is "10", then the top middle is "8", then the top right is "7", then the next row is "6", "5", "4"). And it would be nice to have a label below the sockets that says "Sockets". I'd also like to be able to change the spacing between each socket, and to adjust the drive size parameter. I want the base to have rounded corners, and maybe a setting to remove the label at the bottom.

For the sake of clarity, the 'drive size' is the square bit on the tool (e.g. a 3/8" drive socket has a 3/8" square on the driving side of the socket), not the size of the hole where the allen wrench head goes. The sockets have a square-ish base with slightly rounded corners, and that is what I need the receptacles to match.

Can you create an OpenSCAD file that does all of this? I'm not too familiar with OpenSCAD so it would be best if the file is easy to understand.

I think I'd like to make sure that the text is centered both vertically and horizontally in each socket location, and also on the tab below, if that's not already the default. Please use the "Arial Black" font.

I'm looking to have this use the standard OpenSCAD libraries that come with the software. I do not need any external libraries.

[Assistant]
socket_organizer_parametric.scad:
```
/* [Hidden] */
$fa = 2;
$fs = 1;

/* [Parameters] */
//Drive size
drive_size = 3; // [2:1/4,3:3/8,4:1/2]

//The center to center spacing of recepticles
spacing = 20;
//how many rows of sockets?
rows = 2;
//how many columns of sockets?
cols = 3;
//adjust this up if the sockets fit too tight
clearance = 0.3;
//list the socket labels.  Note: right now the customizer only accepts numbers.  sorry :(
txt = ["10","8","7","6","5","4"];

//Add a tab with text label below sockets (empty for no tab).
label_text = "Sockets";

//END PARAMETERS//
/* [Hidden] */

nib_size = drive_size/8*25.4-clearance;
nib_height = 1.2*nib_size;

basethickness = 3;
letter_depth = 1.4;

label_size = 2*4*drive_size/3;

difference() {
  if (label_text != ""){
    translate([0,-label_size,0])
    rRect([spacing*(rows),spacing*(cols)+label_size,basethickness],3);
  } else {
    rRect([spacing*(rows),spacing*(cols),basethickness],3);
  }
  translate([spacing*(rows)/2,-4*drive_size/3,basethickness-letter_depth/2])
  linear_extrude(letter_depth+0.1)
  text(label_text,size=4*drive_size/3,font= "Arial:style=Black",valign="center",
            halign="center");
}

for (r = [0.5:1:rows]) {
  for (c = [0.5:1:cols]) {
    difference() {
      translate([r*spacing,c*spacing,basethickness+nib_height/2])
        rRect([nib_size,nib_size,nib_height],drive_size,center = true);
      translate([r*spacing,c*spacing,basethickness+nib_height-letter_depth])
        linear_extrude(letter_depth+0.1)
          text( str(txt[round((cols-1-(c-0.5))*rows+ (r-0.5))]),size=4*drive_size/3,font= "Arial:style=Black",valign="center",
            halign="center");
    }
  }
}

// rectangle with radiused cornerrs
// size - [x,y,z]
// r - radius
// center=false - center the object ar origin? (similar to cube)
module rRect(size, r, center = false)
{

  x = size[0];
  y = size[1];
  z = size[2];
  t = center?[-x/2,-y/2,-z/2]:[0,0,0];

  translate(t)
  linear_extrude(height=z)
        hull() {
            translate([r, r, 0])
                circle(r=r);
            translate([x-r, (r), 0])
                circle(r=r);
            translate([ r, y-r, 0])
                circle(r=r);
            translate([x-r, y-r, 0])
                circle(r=r);
        };
}

/*
linear_extrude(height=20)
text(str(7));
*/
```


[User]
I'm trying to design a sprinkler for my garden, and I'd like it to be parametric so I can adjust it to fit different needs. I've got a basic idea of what I want, and I'm hoping you can generate the OpenSCAD code for me.

Here's the gist of it: The sprinkler will have a central hub, from which connectors extend out to the sides. These connectors have a barbed end for attaching to a hose. Then, coming off of the main hub, there are a number of nozzles that spray out water.

Here are the parameters I'd like to control:

*   `hub_diameter`: The diameter of the main central hub.
*   `connector_diameter`: The diameter of the cylindrical part of the connector.
*   `barb_diameter`: The diameter of the barbed end of the connector.
*   `connector_length`: The length of the cylindrical part of the connector.
*   `barb_length`: The length of the barbed end of the connector.
*   `nozzle_inner_diameter`: The inner diameter of the nozzle opening.
*   `nozzle_length`: The length of the nozzle.
*   `num_nozzles`: The number of nozzles on the sprinkler.
*   `nozzle_spread`: The total angle that the nozzles are spread across. For example, 90 would mean all of the nozzles are within a 90-degree arc.
*   `wall_thickness`: The thickness of the walls of the sprinkler parts.
*   `is_end_stop`: A boolean that determines if there is one or two connectors, i.e. is this sprinkler at the end of the line (true) or in the middle (false)

The basic design should be like the code I have provided, but it would be great if the code you create used a more modern OpenSCAD approach. For example, it would be cool if you used BOSL2 instead of the basic cylinders and cubes. Also, please include comments in the code to explain what each section does. Finally, I'd like to be able to render it out in a reasonably high resolution (so include `$fa` and `$fn` settings), so it can look nice in a render. I think that's about it! Let me know if you have questions or need clarification.

[Assistant]
sprinkler.scad:
```
/*[Sprinkler]*/
hub_diameter            = 25;	//[10:1:50]
connector_diameter      = 6;  	//[4:1:13]
barb_diameter           = 8.5;  //[5:0.5:15]
connector_length        = 12;   //[10:1:25]
barb_length             = 6;	//[5:1:10]
nozzle_inner_diameter   = 1;	//[1:0.1:3]
nozzle_length           = 3;	//[0:0.5:10]
num_nozzles             = 3;	//[1:1:5]
nozzle_spread           = 75;	//[45:5:90]
wall_thickness          = 0.7;	//[0.5:0.1:2]
is_end_stop             = false;//[true,false]

$fa = 10;
$fn = 360 / $fa;

rotate([90, 0, 0]) difference()
{
  body();
  cutout();
  *translate([-50, -100, -50]) cube(100);
}

module body()
{
  union()
  {
    translate([0, (connector_diameter - barb_diameter) /2, (connector_diameter - barb_diameter) / 2])
    {
      intersection()
      {
        cylinder(h = barb_diameter, d = hub_diameter);
        translate([-hub_diameter / 2, 0, 0]) cube([hub_diameter, hub_diameter /2, barb_diameter]);
      }

      base();
    }

    connector();

		if(!is_end_stop)
		{
	        mirror([-1, 0, 0]) connector();
		}

    addNozzles();
  }

  module base()
  {
    difference()
    {
      translate([-hub_diameter / 2, -2, -hub_diameter /2])
        cube([hub_diameter,2,hub_diameter + barb_diameter]);
      translate([2-hub_diameter / 2, -2.5, 2 -hub_diameter /2])
        cube([hub_diameter-4,3,-2 +hub_diameter/2 ]);

      translate([2-hub_diameter / 2, -2.5, +barb_diameter])
        cube([hub_diameter-4,3,-2 +hub_diameter/2 ]);

      w = barb_diameter-4;
      *if (w > 0)
        translate([2-hub_diameter / 2, -2.5, 2])
          cube([hub_diameter-4,2.5, w]);
    }
  }

  module connector()
  {
    rotate([0, 90, 0]) translate([-connector_diameter / 2, connector_diameter / 2, 0]) union()
    {
        cylinder(h = connector_length + hub_diameter / 2, d = connector_diameter);
        translate([0, 0, connector_length + hub_diameter / 2 - barb_length]) cylinder(h = barb_length, d1 = barb_diameter, d2 = connector_diameter);
    }
  }

  module nozzle()
  {
    rotate([-90, 0, 0]) translate([0, -connector_diameter / 2, 0]) union()
    {
      cylinder(h = hub_diameter / 2, d = nozzle_inner_diameter + wall_thickness * 4);
      translate([0, 0, hub_diameter / 2])
        cylinder(h = nozzle_length, d1 = nozzle_inner_diameter + wall_thickness * 4, d2 = nozzle_inner_diameter + wall_thickness * 2);
    }
  }

  module addNozzles()
  {
    a_step = nozzle_spread / (num_nozzles - 1);
    offset = -a_step * (num_nozzles - 1) / 2;

    difference()
    {
      union()
      {
        for(idx = [0 : num_nozzles - 1])
        {
          rotate([0, 0, idx * a_step + offset]) nozzle();
        }
      }
      translate([-hub_diameter / 2, -hub_diameter, 0]) cube(hub_diameter);
    }
  }
}

module cutout()
{
    inner_hub_diameter = hub_diameter - wall_thickness * 4;
    inner_connector_diameter = connector_diameter - wall_thickness * 2;

    translate([0, wall_thickness, wall_thickness]) union()
    {
      /*
      #translate([0, (connector_diameter - barb_diameter) /2, 0]) intersection()
      {
          cylinder(h = inner_connector_diameter, d = inner_hub_diameter);
          translate([-inner_hub_diameter / 2, 0, 0]) cube([inner_hub_diameter, inner_hub_diameter, inner_hub_diameter]);
      }
      */

      connector();

      if(!is_end_stop)
      {
            mirror([-1, 0, 0]) connector();
      }

      addNozzles();
    }

    module connector()
    {
      add = inner_hub_diameter / 4;
      rotate([0, 90, 0]) translate([-inner_connector_diameter / 2, inner_connector_diameter / 2, -add])
        cylinder(h = add + connector_length + hub_diameter / 2 + 1, d = inner_connector_diameter);
    }

    module addNozzles()
    {
      a_step = nozzle_spread / (num_nozzles - 1);
      offset = -a_step * (num_nozzles - 1) / 2;

      translate([0, -wall_thickness, 0])
      difference()
      {
        union()
        {
              for(idx = [0 : num_nozzles - 1])
              {
                  rotate([0, 0, idx * a_step + offset]) nozzle();
              }
        }
        translate([-hub_diameter / 2, -hub_diameter + wall_thickness, 0]) cube(hub_diameter);
      }
    }

    module nozzle()
    {
      rotate([-90, 0, 0]) translate([0, -inner_connector_diameter / 2, wall_thickness +0.75])
        cylinder(h = hub_diameter / 2 + nozzle_length + 1, d = nozzle_inner_diameter);
    }
}
```


[User]
I'd like to design a polygonal box with a lid in OpenSCAD. I've got some specific parameters in mind that I'd like to be able to tweak. The box should be parametric, letting me control the number of sides, the overall size, and the wall thicknesses.

Specifically, I want these parameters:

*   `box_sides`: An integer determining the number of sides the box has. Let's say this can range from 3 to 60.
*   `box_rad`: A float controlling the outer radius of the box. This should probably be adjustable between 10 and 75.
*   `base_height`: A float setting the height of the box base. I'd like to be able to set this between 5 and 150.
*   `lid_height`: A float for the height of the lid, also adjustable from 5 to 150.
*   `wall_thickness`: A float determining the thickness of the walls, the top, and the bottom of both the box and the lid; let's allow this to range from 1 to 25.
*   `rim_thickness`: A float setting the thickness of the rim (or lip) that aligns the lid with the box. This can go from 0 to 10.
*   `rim_height`: A float for the height of the rim, also ranging from 0 to 10.
*   `v_slop`: A float that allows for vertical tolerance between the lid and the box. This should be adjustable, possibly even into negative values, so I can tighten or loosen the fit. Let's set the range from -1 to 1.
*   `h_slop`: A float for the horizontal tolerance, with a range similar to `v_slop` (-1 to 1).

The design should be a difference of cylinders with appropriate translations to create the box and lid. The rim should extend from the top of the box base. The lid should have a recessed section that fits over the rim. I'd like both the box and lid to be rendered separately, so that I can easily view each piece.

[Assistant]
Polygonal_Box_with_Lid.scad:
```
// A polygonal box and lid.

// number of sides the box has
box_sides = 6; // [3:60]

// outer radius of the box
box_rad = 25; // [10:75]

// height of the base
base_height = 25; // [5:150]

// height of the lid
lid_height = 10; // [5:150]

// thickness of the walls, top, and bottom
wall_thickness = 5; // [1:25]

// thickness of the rim
rim_thickness = 2.5; // [0.0:0.5:10]

// height of the rim
rim_height = 2.5; // [0.0:0.5:10]

// vertical allowance for the rim
v_slop = 0; // [-1:0.1:1]

// horizontal allowance for the rim
h_slop = 0; // [-1:0.1:1]

translate([box_rad + 2, 0, 0]) difference() { // the box
    union() { // join the outer box form and the lip together so we can just subtract the center once
        cylinder(r = box_rad, h = base_height, $fn = box_sides); // outside of box
        cylinder(r = box_rad - wall_thickness + rim_thickness + h_slop, h = base_height + rim_height - v_slop, $fn = box_sides); // outside of lip
    }
    translate([0, 0, wall_thickness]) cylinder(r = box_rad - wall_thickness, h = base_height + rim_height, $fn = box_sides);
}

translate([-1 * box_rad - 2, 0, 0]) difference() { // the lid
    cylinder(r = box_rad, h = lid_height, $fn = box_sides); // outside of the lid
    // subtract the box void
    translate([0, 0, wall_thickness]) cylinder(r = box_rad - wall_thickness, h = lid_height, $fn = box_sides);
    // subtract where the rim goes
    translate([0, 0, lid_height - rim_height - v_slop]) cylinder(r = box_rad - wall_thickness + rim_thickness - h_slop, h = lid_height + v_slop, $fn = box_sides);
}
```


[User]
I need a parametric OpenSCAD design for an end cap that fits snugly inside rectangular tubing. I've got some specific requirements.

The cap should be a rounded rectangular box shape. I need to be able to specify the outer width, depth, and height of the cap. There also needs to be a plug that goes inside the tube.

The plug part should have its own height and should be inset from the outer edges of the cap. I need to be able to control the inset, which should be the same all the way around, effectively defining a wall thickness. I also need to set a tolerance for the plug, so that it can fit snugly into the tube. It should also have rounded edges.

Also, the plug should have a series of circular "rings" on it, sort of like a stack of washers, to help with gripping the inside of the pipe. I should be able to control the distance between these rings and the height of the rings, and they should have rounded edges as well.

Finally, I want to make sure that the plug is reinforced with internal "walls" or ribs. I'd like to be able to set a minimum size for the length and width of the plug sections that will have these internal ribs. It would be great if the walls are just thin cubes, and I can control their thickness as well as the spacing from the side walls of the plug.

I think that covers it. I'm assuming this will be a single .scad file and I'm not using any external libraries.

[Assistant]
endCap.scad:
```

width=40;

width=40;
depth=30;
height=3;

plugHeight=17;
plugWall=4;
plugRound=4;
tolerance=0.4;
wall=2;
round=3;
plugDistance=3;
plugDistanceHeight=1;

plugWallSpacer=1;
minWallBlock=15;

/* [Hidden] */

plugWidth=width-(2*(wall+tolerance));
plugDepth=depth-(2*(wall+tolerance));

plugWidthReal=width-(2*(wall));
plugDepthReal=depth-(2*(wall));

module cap(){
	translate([width/2,depth/2,height/2]){
		roundedBox([width,depth,height], round, true);
	}

	translate([(wall+tolerance),(wall+tolerance),height]){
		difference(){
			translate([plugWidth/2,plugDepth/2,plugHeight/2]){
				roundedBox([plugWidth,plugDepth,plugHeight], plugRound, true);

				for(move= [1:plugHeight/plugDistance]){
					translate([0,0,move*plugDistance-plugHeight/2]){
						roundedBox([plugWidthReal,plugDepthReal,plugDistanceHeight], plugRound, true);
					}
				}
			}

			translate([plugWall,plugWall,0])cube([plugWidth-(2*plugWall),plugDepth-2*plugWall,plugHeight], center=false);
			translate([plugWall,-tolerance-5,0])cube([plugWallSpacer,plugDepth+10,plugHeight], center=false);
			translate([plugWidth-plugWall-plugWallSpacer,-tolerance-5,0])cube([plugWallSpacer,plugDepth+10,plugHeight], center=false);

			if((plugWidthReal/2)>minWallBlock){
				translate([plugWidthReal/2-plugWallSpacer,-tolerance-5,0])cube([plugWallSpacer,plugDepthReal+10,plugHeight], center=false);
			}

			translate([-tolerance-5,plugWall,0])cube([plugWidth+10,plugWallSpacer,plugHeight], center=false);
			translate([-tolerance-5,plugDepth-plugWall-plugWallSpacer,0])cube([plugWidth+10,plugWallSpacer,plugHeight], center=false);

			if((plugDepthReal/2)>minWallBlock){
				translate([-tolerance-5,plugDepthReal/2-plugWallSpacer,0])cube([plugWidthReal+10,plugWallSpacer,plugHeight], center=false);
			}

		}

	}

}

/*
 * roundedBox([width, height, depth], float radius, bool sidesonly);
 * EXAMPLE USAGE:
 * roundedBox([20, 30, 40], 5, true);
 * */
module roundedBox(size, radius, sidesonly)
{
	rot = [ [0,0,0], [90,0,90], [90,90,0] ];
	if (sidesonly){
		cube(size - [2*radius,0,0], true);
		cube(size - [0,2*radius,0], true);
		for (x = [radius-size[0]/2, -radius+size[0]/2], y = [radius-size[1]/2, -radius+size[1]/2]){
			translate([x,y,0]){
				cylinder(r=radius, h=size[2], center=true);
			}
		}
	}
	else {
		cube([size[0], size[1]-radius*2, size[2]-radius*2], center=true);
		cube([size[0]-radius*2, size[1], size[2]-radius*2], center=true);
		cube([size[0]-radius*2, size[1]-radius*2, size[2]], center=true);
		for (axis = [0:2]) {
			for (x = [radius-size[axis]/2, -radius+size[axis]/2], y = [radius-size[(axis+1)%3]/2, -radius+size[(axis+1)%3]/2]){
				rotate(rot[axis]){
					translate([x,y,0]){
						cylinder(h=size[(axis+2)%3]-2*radius, r=radius, center=true);
					}
				}
			}
		}
		for (x = [radius-size[0]/2, -radius+size[0]/2], y = [radius-size[1]/2, -radius+size[1]/2], z = [radius-size[2]/2, -radius+size[2]/2]){
			translate([x,y,z]) sphere(radius);
		}
	}
}

cap();
```


[User]
Hey, I'm working on a 3D printer project and need a parametric model of a limit switch board, specifically the kind used in MakerBot printers and the Makerfront i3PRO. I've got a base design already, but I want to be able to easily adjust the dimensions.

Here's what I need:

*   **Overall Structure:** The design should consist of a circuit board with mounting holes, a connector, and the limit switch itself.
*   **Circuit Board:**
    *   It should be a rectangular board with adjustable width, height, and thickness.
    *   It needs to have four mounting holes, and the locations of these holes should be adjustable.
*  **Connector:**
    *   A rectangular connector that sits on top of the board.
    *   It should have adjustable width, depth, height, and wall thickness.
    *   The connector's position relative to the circuit board should be adjustable.
*   **Limit Switch:**
    *   The limit switch base is a rectangular block, with adjustable width, length and height.
    *   It has a leaf spring, which can be extruded based on a list of points. The thickness of this spring needs to be adjustable.
     *   The leaf spring should also have optional support stubs beneath to help it print (these can be toggled off).
    *   The position of the entire limit switch on the board should be adjustable.

I'd like all dimensions and the hole locations to be configurable via parameters at the top of the SCAD file. It'd also be useful if the option to include the leaf spring supports was a parameter as well. Could you generate a parametric OpenSCAD file or files for this design? I would prefer to *not* have to use any external libraries.

[Assistant]
i3pro_limit-switch-board.scad:
```
// Copyright 2015 Arthur Davis (thingiverse.com/artdavis)
// This file is licensed under a Creative Commons Attribution 4.0
// International License.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.

// Endstop limit switch board
//
// This is a model of the MakerBot endstop limit switch in my Makerfront i3PRO.
// This is a commonly used switch in other 3D printers. I wanted a CAD model of
// the switch for a project but the model also prints well enough for a
// tangible application. The model includes some tiny stubs beneath the leaf
// spring to help the material bridge which are easily snipped off after
// printing. To get a CAD model without the stubs, change the "support=true"
// parameter in the limswitch() call near the bottom of the file to
// "support=false".

// Units are in mm

// Optimize view for Makerbot Customizer:
// preview[view:"south west", tile:"top diagonal"]

/* [Global] */
// Whether or not to include printer support
support = "Yes"; // [Yes, No]
// 0.8 prints well (atcual thick ~0.25)
leaf_spring_thickness = 0.8; // [0.2:0.1:1.2]

/* [Hidden] */
// Special variables for arc generation:
$fa = 0.1; // minimum fragment angle
$fs = 0.2; // minimum fragment size

// Circuit board dimensions
board_width=16;
board_height=39.5;
board_th=1.5;

module circ_board() {
// Circuit board with holes
    hole_diam = 3.8;
    hole_coords = [
      [3, 3],
      [13, 3],
      [3, 18],
      [3, 37],
    ];
    difference() {
        // Circuit board
        cube(size = [board_width,
                     board_height,
                     board_th]);
        for (xy = hole_coords) {
            translate([xy[0], xy[1], 0])
                cylinder(h=4, d=hole_diam, center=true);
        }
    }
}

module connector(origin=[0, 0, 0]) {
    // Connector
    //
    // Parameters
    // ----------
    // origin : [x, y, z] coordinate of connector origin
    //          (default: [0, 0, 0]
    conn_width = 12.4;
    conn_depth = 6.9;
    conn_height = 5.9;
    conn_wall = 0.5;
    translate(origin) {
        difference() {
        // External shell of connector
        cube(size = [conn_width, conn_depth, conn_height]);
        // Internal shell of connector
        translate([conn_wall, -conn_wall, conn_wall])
        cube(size = [conn_width - conn_wall * 2,
                     conn_depth,
                     conn_height - conn_wall * 2]);
        }
    }
}

// Limit switch
module limswitch(origin=[0, 0, 0], support=true) {
    // Limit Switch
    //
    // Parameters
    // ----------
    // origin : [x, y, z] coordinate of limit switch origin
    //          (default: [0, 0, 0]
    // support : boolean for putting in support for the leaf spring
    //           when printing (default: true)
    sw_width = 6.6;
    sw_length = 12.7;
    sw_height = 7.4;
    leaf_th = leaf_spring_thickness;
    leaf_coords = [
      [0, 0.5],
      [-3.81 , 12.2],
      [-5.1, 13.7],
      [-2.8, 16.5],
      // Give the leaf spring thickness so it can be extruded
      [-2.8 + leaf_th, 16.5],
      [-5.1 + leaf_th, 13.7],
      [-3.81 + leaf_th , 12.2],
      [0 + leaf_th, 0.5],
    ];
    support_coords = [
      [-1.8, 6],
      [-3.81 , 12.2],
      [-5.1, 13.7],
      [-2.8, 16.5],
    ];
    translate(origin) {
        union() {
            cube(size = [sw_width, sw_length, sw_height]);
            linear_extrude(height = sw_height)
                polygon(leaf_coords);
            if(support) {
                for(i = [0 : 3]){
                    translate([support_coords[i][0] + leaf_th/2,
                               support_coords[i][1], -board_th]){
                    cylinder(h=board_th, d1=2*leaf_th, d2=leaf_th);
                    }
                }
            }
        }
    }
}

// Assemble the board
module assemble(support=true) {
    union() {
        circ_board();
        connector(origin=[2, 4, board_th]);
        limswitch(origin=[0, 21, board_th], support=support);
    }
}

if (support == "Yes")
    assemble(support=true);
else
    assemble(support=false);

```


[User]
Hey there! I'm looking to create a customizable plant sign for my garden, and I'd like to use OpenSCAD to make it parametric. I'd like the sign to have a rectangular face where I can put the plant name, and a stick to push into the soil.

Here's what I'm envisioning:

*   **Sign Face:** It should be a rectangular shape with a border around the edge. The dimensions of the rectangle (width and height) should be configurable, along with the thickness of the sign itself and the thickness of the border.
*   **Text:** I need to be able to specify the text to be displayed on the sign face and its size, so it fits nicely within the rectangle. The text should be centered both horizontally and vertically on the sign face.
*   **Stick:** There needs to be a stick attached to the bottom of the sign so that it can be stuck into the soil. I need to be able to configure the length of the stick and also the stick's width. It would be good to make sure the stick is centered along the width of the sign too.

I’d like to keep the design relatively simple, but I also want to have as many parameters as possible for easy customization. I'd prefer if the design uses a solid color for the sign and stick, and a separate contrasting color for the text. I don't have any preference for which specific colors are used; I will select them myself later when rendering.

Also, it would be super helpful if all the code were in a single .scad file (no need to use any libraries), and if it were also easily configurable using OpenSCAD's customizer.

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

[Assistant]
Configurable-PlantSign.scad:
```

//CUSTOMIZER VARIABLES

//Width of the sign
signWidth=50;

//Height of the sign
signHeight=30;

//Text to be displayed
textMsg = "Tomate";

//Size of the text; Adjust until it fits
textSize = 9;

//Length of the stick
stickLength = 90;

//Border thickness in mm ourund the sign
border = 1;

//Thickness of the sign
thickness = 2;

//CUSTOMIZER VARIABLES END

module renderSign(length,height,border,thickness) {
    color([0.5,0.5,0.5]){
    difference (){
        cube(size=[length+(2*border),height+(2*border),(thickness+0.5)],center=false);
        translate([border,border,thickness]) {
           cube(size = [length,height,thickness], center=false);
        }
    };
    };
}

module renderText(textMsg,textSize,signWidth,signHeight,border,thickness){
    color([1,1,1]){
    translate([(signWidth/2)+border,(signHeight/2)+border,thickness],center=false){
        linear_extrude(height = 1){
            text(text=textMsg,size=textSize,halign="center",valign="center");
        };
    }
};
}

module renderStick(stickLength,signWidth,signHeight,thickness){
    color([0.5,0.5,0.5]){
        translate([ ((signWidth+(2*border))/2)-((signWidth/10)/2), stickLength * -1,0]){
                cube(size=[signWidth/10,stickLength,thickness]);
        };
    };

}

union(){
    renderSign(signWidth,signHeight,border,thickness);
    renderText(textMsg,textSize,signWidth,signHeight,border,thickness);
    renderStick(stickLength,signWidth,signHeight,thickness);
}

```


[User]
Hey, I'm looking for some help designing a parametric plant sign in OpenSCAD. I've made a couple versions already, but I want a fresh start and a more robust design.

Essentially, I need a rounded rectangle base plate (like a pill shape) that has a stick extending downwards from the middle of the bottom. I need to be able to configure the following:

*   **`signWidth`**: The overall width of the main rectangular part of the sign.
*   **`signHeight`**: The height of the main rectangular part of the sign.
*   **`textMsg`**: The text that will be displayed on the sign.
*   **`textSize`**: The size of the displayed text.
*   **`stickLength`**: How long the stick will be.
*   **`stickWidth`**: The width of the stick.
*   **`border`**: The thickness of the border around the rectangular part of the sign.
*   **`thickness`**: The overall thickness of the sign, including the border.

The sign should be created using a rounded rectangle with cylinders on the sides.  The main rectangular part of the sign, excluding the border, will be a different shape than the rest of the sign, since the rounded edges and the border are added to the base rectangle. The text should be centered on the sign’s rectangle. The text should be slightly raised. The stick should be a rectangular prism that extends straight down from the center of the base. Also, a small rectangular prism needs to be added at the top of the stick to join with the base. The sign base and the stick will be the same color. The text should be a different color, contrasting with the base.

I'm not using any external libraries right now but am open to suggestions if there are good reasons to do so. I'd like the code to be well organized and commented. Ideally, the different parts like the sign, text, and stick would be modules.

Could you please generate the OpenSCAD file for this design? I'm excited to see what you come up with.

[Assistant]
Configurable-PlantSign_Round.scad:
```

//CUSTOMIZER VARIABLES

//Width of the sign
signWidth=60;

//Height of the sign
signHeight=30;

//Text to be displayed
textMsg = "Tomato";

//Size of the text; Adjust until it fits
textSize = 13;

//Length of the stick
stickLength = 90;

//Width of the stick
stickWidth = 5;

//Border thickness in mm ourund the sign
border = 1;

//Thickness of the sign
thickness = 2;

//CUSTOMIZER VARIABLES END

module renderSign(length,height,border,thickness) {
    color([0.5,0.5,0.5]){
        difference (){
            union(){
                cube(size=[length+(2*border),height+(2*border),(thickness+0.5)],center=false);
                translate([0,(height/2)+border,0]){
                    cylinder(h=(thickness+0.5),d=height+(2*border));
                };
                translate([length,(height/2)+border,0]){
                    cylinder(h=(thickness+0.5),d=height+(2*border));
                };
            }
            translate([border,border,thickness]) {
               cube(size = [length,height,thickness], center=false);
            };
            translate([0,(height/2)+border,thickness]){
                cylinder(h=thickness,d=height);
            };
            translate([length,(height/2)+border,thickness]){
                cylinder(h=thickness,d=height);
            };
        };
    };
}

module renderText(textMsg,textSize,signWidth,signHeight,border,thickness){
    color([1,1,1]){
    translate([(signWidth/2)+border,(signHeight/2)+border,thickness],center=false){
        linear_extrude(height = 1){
            text(text=textMsg,size=textSize,halign="center",valign="center");
        };
    }
};
}

module renderStick(stickLength,stickWidth,signWidth,signHeight,thickness,border){
        color([0.5,0.5,0.5]){
            translate([ ((signWidth/2)+border)-(stickWidth/2), stickLength * -1,0]){
                    cube(size=[stickWidth,stickLength,thickness]);
            };
            translate([ ((signWidth/2)+border)-(stickWidth),border * -2 ,0]){
                    cube(size=[stickWidth*2,border*2,thickness]);
            };
        };

}

union(){
    renderSign(signWidth/2,signHeight,border,thickness);
    renderText(textMsg,textSize,signWidth/2,signHeight,border,thickness);
    renderStick(stickLength,stickWidth,signWidth/2,signHeight,thickness,border);
}

```


[User]
I'd like to design a parametric plant sign in OpenSCAD, and I'm envisioning something similar to the example I saw on Thingiverse. Basically, it should have a rectangular sign portion with rounded edges, a text label on the face of the sign, and a stick coming down from the bottom for planting.

Here are the things I'd like to be able to customize:

*   **Sign Dimensions:** I need to control the width and height of the main rectangular sign part.
*   **Edge Rounding:** The radius of the rounded corners should be adjustable.
*   **Text:** The text to be displayed on the sign should be a configurable string.
*   **Text Size:** I'd like to control the font size of the text so I can make it fit the sign properly.
*   **Stick Length & Width:** The length and width of the stick that goes into the soil should be adjustable.
*   **Border Thickness:** I'd like to set the thickness of a border around the sign.
*   **Sign Thickness:** The overall thickness of the sign needs to be configurable too.

I don't need any crazy shapes, just a good solid rectangular sign with a stick, but with all those parameters available to me. Also I do not want to use any libraries, please keep all code within a single .scad file.

[Assistant]
Configurable-PlantSign_OldSign.scad:
```

//CUSTOMIZER VARIABLES

//Width of the sign
signWidth=60;

//Height of the sign
signHeight=30;

//Radius of rounded edges
radius = 10;

//Text to be displayed
textMsg = "Tomato";

//Size of the text; Adjust until it fits
textSize = 9;

//Length of the stick
stickLength = 90;

//Width of the stick
stickWidth = 5;

//Border thickness in mm ourund the sign
border = 1;

//Thickness of the sign
thickness = 2;

//CUSTOMIZER VARIABLES END

module renderSign(length,height,border,thickness,radius) {
    color([0.5,0.5,0.5]){
        difference(){
        union(){
            difference (){
                cube(size=[length+(2*border),height+(2*border),(thickness+0.5)],center=false);
                translate([border,border,thickness]) {
                   cube(size = [length,height,thickness], center=false);
                };
            };
            cylinder(h = (thickness+0.5), r=radius,center=false);
            translate([0,height+(2*border),0]){
                cylinder(h = (thickness+0.5), r=radius,center=false);
            };
            translate([length+(2*border),height+(2*border),0]){
                cylinder(h = (thickness+0.5), r=radius,center=false);
            };
            translate([length+(2*border),0,0]){
                cylinder(h = (thickness+0.5), r=radius,center=false);
            };
        };
            //lower left
            cylinder(h = (thickness+0.5), r=radius-border,center=false);
            translate([0,radius * -1,0]){
                cube([radius,radius,thickness+0.5]);
            };
            translate([radius * -1,0,0]){
                cube([radius,radius,thickness+0.5]);
            };
            translate([radius * -1, radius * -1,0]){
                cube([radius,radius,thickness+0.5]);
            };

            //upper left
            translate([0,height+(2*border)],0){
                cylinder(h = (thickness+0.5), r=radius-border,center=false);
            };
            translate([radius *-1,height+(2*border),0]){
              cube([radius,radius,thickness+0.5]);
            };
            translate([0,height+(2*border),0]){
              cube([radius,radius,thickness+0.5]);
            };
            translate([radius *-1,height+(2*border)-radius,0]){
              cube([radius,radius,thickness+0.5]);
            };

            //upper right
            translate([length+(2*border),height+(2*border)],0){
                cylinder(h = (thickness+0.5), r=radius-border,center=false);
            };
            translate([length+(2*border),height+(2*border),0]){
              cube([radius,radius,thickness+0.5]);
            };
            translate([length+(2*border)-radius,height+(2*border),0]){
              cube([radius,radius,thickness+0.5]);
            };
            translate([length+(2*border),height+(2*border)-radius,0]){
              cube([radius,radius,thickness+0.5]);
            };

            //lower right
            translate([length+(2*border),0,0]){
                cylinder(h = (thickness+0.5), r=radius-border,center=false);
            };
            translate([length+(2*border),0,0]){
              cube([radius,radius,thickness+0.5]);
            };
            translate([length+(2*border)-radius,radius * -1,0]){
              cube([radius,radius,thickness+0.5]);
            };
            translate([length+(2*border),radius *-1,0]){
              #cube([radius,radius,thickness+0.5]);
            };

    };

    };
}

module renderText(textMsg,textSize,signWidth,signHeight,border,thickness){
    color([1,1,1]){
    translate([(signWidth/2)+border,(signHeight/2)+border,thickness],center=false){
        linear_extrude(height = 1){
            text(text=textMsg,size=textSize,halign="center",valign="center");
        };
    }
};
}

module renderStick(stickLength,stickWidth,signWidth,signHeight,thickness,border){
        color([0.5,0.5,0.5]){
            translate([ ((signWidth/2)+border)-(stickWidth/2), stickLength * -1,0]){
                    cube(size=[stickWidth,stickLength,thickness]);
            };
            translate([ ((signWidth/2)+border)-(stickWidth),border * -2 ,0]){
                    cube(size=[stickWidth*2,border*2,thickness]);
            };
        };

}

union(){
    renderSign(signWidth,signHeight,border,thickness,radius);
    renderText(textMsg,textSize,signWidth,signHeight,border,thickness);
    renderStick(stickLength,stickWidth,signWidth,signHeight,thickness,border);
}

```


[User]
Hey, I'm looking to get a 3D model designed, specifically something that'll hold my headset behind my monitor. I have a basic idea of what I need, and I'd like it to be parametrically defined in OpenSCAD, please. I'm thinking of something that clamps onto the back of the monitor and has a kind of cylinder-like cradle for the headset.

Here are the dimensions I'm currently working with, but I'd like them to be adjustable:

*   **Monitor Depth (monD):** The thickness of my monitor at the point the clip attaches. Start with a value of 25mm.
*   **Monitor Frame Thickness (monF):** The width of the monitor frame. Let's start with 19mm for that one.
*   **Headset Depth (heaD):** The depth of the headset cradle, initially set to 10mm.
*   **Headset Diameter (heaDiameter):** The diameter of the circular part of the headset that will sit in the cradle. Set to 50mm.
*   **Headset Lip (heaL):** The height of the lip on the headset cradle to hold it in, start at 6mm.
*   **Total Clip Width (width):** The width of the clip itself, initially 25mm.
*   **Thickness (thick):** The general thickness of the plastic, maybe 1.4mm?

I'd like the design to be made up of two main parts: a clamping part that goes behind the monitor, and the headset cradle. The clamping part should have a cutout for the monitor's thickness and a lip that grips the monitor's frame. The headset cradle should be a cylinder with a lip, as described by the parameters. I think it should also use a difference to ensure the inner part of the cradle is properly formed.

I think it should be robust so I'd like the diameter of the headset to account for the thickness of the clip, maybe by taking the max of the width plus two thickness amounts, or the headset diameter.

Oh, and I'd like to keep the face count pretty high; let's use `$fn=100`.

I also want the design to be such that the cylinder for the headset is placed at the center of the clip width but is located a distance away determined by the pythagorean theorem based on the radius of the headset.

I don't have any specific libraries I want you to use, just the default OpenSCAD functions will do. Can you generate the OpenSCAD code for this? Thanks!

[Assistant]
HeadsetClip.scad:
```

//Monitor Depth
monD=25;

//Monitor frame
monF=19;

//Headset Depth
heaD=10;

//Headset Diameter
heaDiameter = 50;

//Headset lip;
heaL=6;

//Total width
width=25;

//thickness
thick=1.4;

//face number
$fn=100;

//security
heaDia= max(width+thick*2,heaDiameter);

function pyth(a,h) = sqrt(h*h - a*a);

difference() {
    cube([monD+thick*2,monF+thick,width]);
    translate([thick,-0.1,-0.1]) cube([monD,monF+0.1,width+0.2]);
   // translate([thick*2+monD,thick,0]) cube([heaD,monF,width]);
    translate([thick+monD,-pyth(width/2,(heaDia-thick*2)/2),width/2])rotate([0,90,0])
    cylinder(d=heaDia-thick*2,h=thick);
}
intersection(){
translate([thick*2+monD,-pyth(width/2,(heaDia-thick*2)/2),width/2])
rotate([0,90,0])
difference(){
    union(){
        cylinder(d=heaDia,h=heaD);
        translate([0,heaL,heaD])cylinder(d=heaDia,h=thick);
    }
    cylinder(d=heaDia-thick*2,h=heaD+thick);
}
cube([monD+thick*3+heaD,monF+thick,width]);
}
```


[User]
I want to create a parametric pen holder, something that I can customize to fit different pen sizes and numbers. I've been playing around with a design I found online, and I think it's a good starting point, but I'd like a clean implementation.

Here are the key features and parameters I'm looking for:

*   **Overall Shape:** The main body should be a cylinder, but with the option for a beveled top edge.
*   **Main Body Dimensions:**
    *   `Model_Radius`: The radius of the cylinder at its mid-height.
    *   `Internal_Radius`: The radius of a hollow cylinder inside the main body, to create a wall thickness. Setting this to 0 would make it a solid cylinder.
    *   `Height`: The overall height of the pen holder.
*   **Beveling:**
    *   `Bevel`: The amount of material to cut off the top edge. If 0, there's no bevel.
    *   `Bevel_Angle`: The angle of the bevel cut.
*   **Pen Holes:**
    *   `Hole_Number`: The number of pen/pencil holes around the circumference.
    *   `Hole_Radius`: The radius of each pen hole.
    *   `Hole_Angle`: The sideways tilt of the holes (think of it as the holes leaning left or right).
    *   `Hole_Pitch`: The inwards tilt of the holes (so the holes angle towards the center).
    *    `Hole_Distance`: Distance of the holes from the center of the model.
*   **Faceting:** I'd also like to be able to control how smooth the curves are. I'd like the ability to define how many facets make up each circle/cylinder.
*   **Testing:** I'd like a test mode that highlights the pen hole locations, to easily visualize them before exporting.
*   **Units:** I'm working in millimeters.

I'm hoping you can generate a clean OpenSCAD file that has these parameters and features. I'm not sure if this is better as a single SCAD file, or a few, so please use your discretion. I'm expecting that this will use standard OpenSCAD libraries so those do not need to be included.

[Assistant]
Pen_Holder.scad:
```
//CUSTOMIZER VARIABLES

//Facet number
Definition = 100;

//The radus of the model (at mid height; top and bottom radius is calculated based on Hole Pitch)
Model_Radius = 40;

//The radius of the center hole (at midpoint; set to 0 to disable; should be considerably smaller than the Model Radius)
Internal_Radius = 30;

//The height of the entire model
Height = 15;

//The amount of material cut off of the top edge of the model (should be greater than 0; 0 to disable)
Bevel = 5;

//The angle of the applied bevel
Bevel_Angle = 40; // [0:90]

//The number of pen/pencil holes
Hole_Number = 20;

//Radius of the pen/pencil holes
Hole_Radius = 4;

//The sideways tilt of the pen/pencil holes
Hole_Angle = 20; // [-90:90]

//The inwards tilt of the pen/pencil holes
Hole_Pitch = 15; // [-45:45]

//The distance of the holes from the center of the model (shold be slightly less than the Model Radius)
Hole_Distance = 37;

//Test function (should be set to export when model is saved)
Test = "export"; // [test,export]

module penholder(intrad,thickness,height,bevel,bevelangle,holenum,holerad,dist,angle,severity,test){

difference(){

cylinder(height,thickness+(tan(severity)*height/2),thickness-(tan(severity)*height/2),center = true);
cylinder(height+2,intrad+(tan(severity)*(height+2)/2),intrad-(tan(severity)*(height+2)/2),center = true);

for(n = [0:holenum-1]){

rotate([0,0,n*(360/holenum)])translate([dist,0,0])rotate([angle,-severity,0])cylinder(height*2,holerad,holerad,center = true);

};

translate([0,0,height/2-bevel+thickness/2])rotate_extrude($fn = 100)translate([thickness,0,0])rotate([0,0,-bevelangle-45])circle(thickness/2,$fn = 4);

};

if(test == "test"){

#for(n = [0:holenum-1]){

rotate([0,0,n*(360/holenum)])translate([dist,0,0])rotate([angle,-severity,0])translate([0,0,-height/2])cylinder(150,holerad-0.5,holerad-0.5);

};

};

};

penholder(Internal_Radius,Model_Radius,Height,Bevel,Bevel_Angle,Hole_Number,Hole_Radius,Hole_Distance,Hole_Angle,Hole_Pitch,Test,$fn = Definition);
```


[User]
Okay, I'm looking for a parametric OpenSCAD design for a die, but it's not a regular cube. I want it to have a sort of rounded, almost "pillowed" shape, and instead of indented dots for the numbers, I want little spheres protruding out.

Here are the parameters I'd like to control:

*   **`RESOLUTION`**:  This will control the smoothness of the curves; higher values equal a smoother shape, and lower values will make it more blocky. I'd like to be able to easily adjust this - maybe with options like 8, 16, 32, 64, 128, and 256.

*   **`SQUARE_LENGTH`**: This will be the basic size of the die; basically the length of the side of the cube if it wasn't curved, but without the wall thickness. I need to be able to set this in millimeters.

*   **`LAYER_THICKNESS`**:  This controls the thickness of the individual "layers" used to make the rounded shape. It should be a fairly small value in mm, like 0.1 to 0.5.

*   **`WALL_THICKNESS_IN_LAYER`**:  This will determine how many "layers" make up the wall thickness of the die. So the final wall thickness will be  `LAYER_THICKNESS` * `WALL_THICKNESS_IN_LAYER`.

*   **`SPHERE_DIA_IN_PERCENTAGE`**:  This is the diameter of the number spheres expressed as a percentage of the `SQUARE_LENGTH`. So, a setting of, say, 4.0 would mean the sphere diameter would be 4% of `SQUARE_LENGTH`.

The die should be hollow, with the wall thickness determined as described above.

For the number spheres, I want them to be positioned on the die faces like a standard six-sided die. For each sphere, there should be a small cylinder which connects the outer sphere to the main body.

The output of the OpenSCAD file should be the finished die.

I think that should be all of the parameters, but let me know if I need to explain anything more.

[Assistant]
dice_v2.scad:
```
RESOLUTION                          = 64 ;      // [ 8,16,32,64,128,256]
SQUARE_LENGTH                       = 20.00 ;   // [ 10:100]

LAYER_THICKNESS                     =  0.2 ;   // [ 0.1:0.5]
WALL_THICKNESS_IN_LAYER             =  6 ;      // [ 1:20]

SPHERE_DIA_IN_PERCENTAGE            =  4.0;       // [ 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7 ]

//-----------------------------------------------------
$fn                         = RESOLUTION;
KUGEL_RADIUS                = (SQUARE_LENGTH*SPHERE_DIA_IN_PERCENTAGE)/100;
wandstaerke_mm              = LAYER_THICKNESS * WALL_THICKNESS_IN_LAYER;
echo(wandstaerke_mm);
wuerfel_komplett            = SQUARE_LENGTH + wandstaerke_mm *2;
kugel_komplett_radius       = KUGEL_RADIUS + wandstaerke_mm;
//-----------------------------------------------------

wuerfel_komplett();

module wuerfel_komplett() {
        difference() {
        difference() {
            wuerfel_difference();
            numbers_negativ();
        }
    translate( [    0,
                    0,
                    0 ] )
    union() {
        union() {
            translate( [    0,
                            0,
                            (SQUARE_LENGTH /2)*-1 ] )
            cylinder(       r = KUGEL_RADIUS+wandstaerke_mm/2,
                            h = SQUARE_LENGTH );
            rotate( [      90,
                            0,
                            0 ] )
            translate( [    0,
                            0,
                            (SQUARE_LENGTH /2)*-1 ] )
            cylinder(       r = KUGEL_RADIUS+wandstaerke_mm/2,
                            h = SQUARE_LENGTH );
        }

    rotate( [      0,
                   90,
                    0 ] )
    translate( [    0,
                    0,
                    (SQUARE_LENGTH /2)*-1 ] )
    cylinder(    r = KUGEL_RADIUS+wandstaerke_mm/2,
             h = SQUARE_LENGTH  );
}
}

}

module numbers_negativ() {
    laenge = wuerfel_komplett/2;
    //%cube(laenge);
    x = laenge ;
    y = laenge ;
    z = laenge ;

    length = sqrt( pow(x, 2) + pow(y, 2) + pow(z, 2) );
    b = acos(z/length);
    c = (x==0) ? sign(y)*90 : ( (x>0) ? atan(y/x) : atan(y/x)+180 );

    sphere(kugel_komplett_radius+wandstaerke_mm*0.5);
    /*
    rotate([    0,
                b,
                c ] )
    cylinder(   h = length,
                r = 0.25);
    */
     for(i = [ [  laenge*0.35,  laenge*0.35,  laenge*0.35 ],
               [  laenge*0.65,  laenge*0.65,  laenge*0.65 ],
               [  (laenge*0.35)*-1,  (laenge*0.35),  (laenge*0.35) ],
               [  (laenge*0.65)*-1,  (laenge*0.65),  (laenge*0.65) ],
               [  (laenge*0.35)*-1,  (laenge*0.35),  (laenge*0.35)*-1 ]  ] ) {
    translate(i)
    sphere(     r = kugel_komplett_radius );
}

}

module wuerfel_difference() {
   difference() {
        cube(  [ wuerfel_komplett-0.2,
                 wuerfel_komplett-0.2,
                 wuerfel_komplett-0.2 ], center = true );
        mirrorSeite();
   }
}

module mirrorSeite() {

seite();
mirror( [ 0, 1, 0 ] ) seite();
mirror( [ 1, 1, 0 ] ) seite();
mirror( [ 1, 0, 0 ] ) mirror( [ 1, 1, 0 ] ) seite();
mirror( [ 1, 0, 1 ] ) mirror( [ 1, 0, 0 ] ) mirror( [ 1, 1, 0 ] ) seite();
mirror( [ 0, 0, 1 ] ) mirror( [ 1, 0, 1 ] ) mirror( [ 1, 0, 0 ] ) mirror( [ 1, 1, 0 ] ) seite();
}

module seite_hilfe() {
    for(i = [0:len(punkte)-1]) {
        translate(punkte[i])
        sphere(0.1);
        //translate(punkte[i])
        //text(str(i), size = 1);
    }
}

module seite() {

punkte  = [        [ -SQUARE_LENGTH/2, SQUARE_LENGTH/2, -SQUARE_LENGTH/2 ],
                   [  SQUARE_LENGTH/2, SQUARE_LENGTH/2, -SQUARE_LENGTH/2 ],
                   [ -SQUARE_LENGTH/2, SQUARE_LENGTH/2,  SQUARE_LENGTH/2],
                   [ SQUARE_LENGTH/2, SQUARE_LENGTH/2,  SQUARE_LENGTH/2],
                   [ 0, 0 ] ];

translate(    [   0,
                  wandstaerke_mm,
                  0 ] )

polyhedron(       points = punkte,
                  faces  = [ [ 0, 1, 2 ],
                             [ 1, 3, 2 ],
                             [ 2, 3, 4 ],
                             [ 3, 1, 4 ],
                             [ 0, 4, 1 ],
                             [ 2, 4, 0 ] ] ) ;
}
```


[User]
Hey, I'm trying to design some screen connectors for window screens, and I'd like to generate them using OpenSCAD. I need a script that can create different types of connectors: corners, splices, tees, and four-way crosses.

For the corner pieces, I need to be able to adjust the angle of the corner. All connectors need to have a few basic parameters such as the width of the connector, the depth from the edge to the corner (or end, for a splice), the thickness of the part, and an outer thickness (that can be equal to the thickness if needed). For corners, I'd like to be able to choose between a "mitre" style end and a "straight end" style. For the other connector types, it's probably best to stick with a straight end.

Can you generate an OpenSCAD file that will do that? I'd like to be able to control all the dimensions through variables and a few "shape" and "style" settings as well. I'm not expecting fancy code, just that the design should work functionally and can be printed reasonably well. I won't be using any special libraries, but let me know if you need to include any to make it easier.

[Assistant]
screencorners.scad:
```
// This thing allows you to create corners, tees, crosses,
// and splices for fixing up your window screens.
//
// This is licensed under the creative commons+attribution licence
// To fulfil the attribution requirement, please link to:
//		http://www.thingiverse.com/thing:897599

/* [Main] */

// what shape of screen connector
shape=0; // [0:corner,1:splice,2:tee,3:four way]

// the style of the screen connector
style=1; // [0:mitre,1:straight_end]

// how wide
width=13.18;

// measurement from the edge to the corner
depth_to_corner=25.47;

// how thick the part is
thickness=10.08;

// The angle of the joint (only works for corner)
angle=130;

/* [Advanced] */

// This makes it look nicer, but can make printablility more complex
outer_thickness=0;

/* [Hidden] */

module end(bevel,width,depth,thickness){
	translate([0,-width/2,0]) cube([depth-bevel,width,thickness]);
	translate([depth-bevel/2,0,thickness/2]) rotate([0,-90,0]) frustum(thickness,width,thickness-bevel*2,width-bevel*2,bevel);
}

module old_mitre_style(){
	outside_corner_r=width/6;
	inside_corner_r=width/18;
	bevel=thickness/3;
	translate([0,0,-thickness/2]) linear_extrude(thickness) {
		difference(){
			union(){
				translate([0,bevel-depth_to_corner,0]) square([width,depth_to_corner-bevel]);
				rotate([0,0,90]) square([width,depth_to_corner-bevel]);
				translate([width-outside_corner_r,width-outside_corner_r,0]) circle(r=outside_corner_r,$fn=20);
				square([width-outside_corner_r,width]);
				square([width,width-outside_corner_r]);
			}
			circle(r=inside_corner_r,$fn=20);
		}
	}
	translate([bevel/2-depth_to_corner,width/2,0]) rotate([0,90,0]) frustum(thickness,width,thickness-bevel*2,width-bevel*2,bevel);
	translate([width/2,bevel/2-depth_to_corner,0]) rotate([0,0,90]) rotate([0,90,0]) frustum(thickness,width,thickness-bevel*2,width-bevel*2,bevel);
}

module frustum(w,h,w2,h2,d){
	hull(){
		translate([-w/2,-h/2,d/2]) cube([w,h,0.01]);
		translate([-w2/2,-h2/2,-d/2]) cube([w2,h2,0.01]);
	}
}

module reliefs(angle,r=1,$fn=20){
	n=width/2+r/2;
	translate([ n, n,-1]) cylinder(r=r,h=thickness+2);
	translate([-n,-n,-1]) cylinder(r=r,h=thickness+2);
	translate([ n,-n,-1]) cylinder(r=r,h=thickness+2);
	rotate([0,0,angle]) {
		translate([ n, n,-1]) cylinder(r=r,h=thickness+2);
		//translate([-n,-n,-1]) cylinder(r=r,h=thickness+2);
		translate([ n,-n,-1]) cylinder(r=r,h=thickness+2);
	}
}

if (outer_thickness<=0){
	outer_thickness=thickness;
}

difference(){
	union(){
		if(shape==0){ //corner
			end(thickness/3,width,depth_to_corner+width,thickness,mitre=style==0);
			rotate([0,0,angle]) end(thickness/3,width,depth_to_corner+width,thickness);
			if(style==0||((angle%90)!=0)){
				cylinder(r=width/2,h=thickness,$fn=20);
			}else{
				translate([-width/2,-width/2,-outer_thickness]) cube([width,width,thickness+2*outer_thickness]);
			}
		}
		if(shape==1){ // straight (only miter style/no connector)
			end(thickness/3,width,depth_to_corner,thickness);
			rotate([0,0,180]) end(thickness/3,width,depth_to_corner,thickness);
		}
		if(shape==2){ // 3-way (always non-miter style)
			end(thickness/3,width,depth_to_corner+width,thickness);
			rotate([0,0,90]) end(thickness/3,width,depth_to_corner+width,thickness);
			rotate([0,0,180]) end(thickness/3,width,depth_to_corner+width,thickness);
			translate([-width/2,-width/2,-(outer_thickness-thickness)/2]) cube([width,width,outer_thickness]);
		}
		if(shape==3){ // 4-way (always non-miter style)
			end(thickness/3,width,depth_to_corner+width,thickness);
			rotate([0,0,90]) end(thickness/3,width,depth_to_corner+width,thickness);
			rotate([0,0,180]) end(thickness/3,width,depth_to_corner+width,thickness);
			rotate([0,0,-90]) end(thickness/3,width,depth_to_corner+width,thickness);
			translate([-width/2,-width/2,-(outer_thickness-thickness)/2]) cube([width,width,outer_thickness]);
		}
	}
	reliefs(angle);
}
```


[User]
I'd like to design a parametric umbrella stand that I can 3D print. I've got some initial thoughts in mind but I need something flexible, so PLA won't work. I need to be able to adjust all the key dimensions.

The stand should have a base that's essentially a square block. Then, a tube will extend upwards from the center of this base. The tube should have a lower section with a wider diameter, and then taper inwards to an upper section with a slightly smaller diameter - like a truncated cone. I'd like to put some slots in the tube to allow for a bit of flex to help grip the umbrella.

I need to be able to adjust the dimensions of all of these parts - the size of the base (both length/width and its thickness), the tube's inner diameter, how tall the tube is, the lower and upper outer diameters of the tube, and how tall the tapered section is. I'd also like some cutouts in the base that would let me screw it down to a deck or floor. I'll need to adjust the diameter of the screw holes and their offset from the center of the base, as well as the width and depth of the slots in the tube. I think it would be useful to have countersunk screw holes.

I am not sure exactly how to do this and would appreciate it if you could generate the OpenSCAD code. Ideally, this would be parametric, so I can easily tweak all of these measurements to get exactly what I need. I'm not using any libraries other than the standard OpenSCAD libraries.

I think that's everything - please let me know if anything is unclear.

[Assistant]
stand.scad:
```
// Base - Dimension (X & Y) in mm
base_dimension = 50;
// Base - Depth in mm
base_thickness = 10;
// Tube - Inner diameter in mm
tube_inner = 33;
// Tube - Height from base in mm
tube_height = 50;
// Tube - Lower outer diameter in mm
tube_lower = 42;
// Tube - Upper outer diameter in mm
tube_upper = 40;
// Tube - Bevel height in mm
tube_bevel_height = 35;
// Anchor hole - Diameter in mm
anchor_hole = 3.4;
// Countersunk head diameter in mm
screwhead_diameter = 7.8;
// Slot width in mm
slot_width = 2;
// Slot depth in mm
slot_depth = 15;
// Anchor location in mm from center
anchor_offset = (base_dimension - 10)/2;

module dd_umbrella_stand(dim,dep,inner,height,lower,upper,bevel)
	{

	difference()
		{
		union()
			{
                cube([dim,dim,dep],center=true); // base
                cylinder(d=lower,h=bevel,$fn=100); // holder
                cylinder(d=upper,h=height,$fn=100); // bevel top
                }
		union()
			{
                translate([0,0,-6]) cylinder(d=inner,h=height + dep,$fn=100); // pole hole
                translate([0,0,(slot_depth/2) + tube_height - slot_depth+0.1]) cube([tube_lower + 0.1,slot_width,slot_depth],center=true); // cut X axis
                rotate([0,0,90]) translate([0,0,(slot_depth/2) + tube_height - slot_depth+0.1]) cube([tube_lower + 0.1,slot_width,slot_depth],center=true); // cut Y axis
                translate([anchor_offset,anchor_offset,(base_thickness + 0.2)/2]) rotate([180,0,0]) screw(); // screw hole
                translate([-anchor_offset,anchor_offset,(base_thickness + 0.2)/2]) rotate([180,0,0]) screw(); // screw hole
                translate([anchor_offset,-anchor_offset,(base_thickness + 0.2)/2]) rotate([180,0,0]) screw(); // screw hole
                translate([-anchor_offset,-anchor_offset,(base_thickness + 0.2)/2]) rotate([180,0,0]) screw(); // screw hole
                }
		}

	}
    module screw()
    {
        difference()
        {
            union()
            {
                cylinder(d=anchor_hole, h=base_thickness + 0.2,$fn=100); // screw shaft
                cylinder(r1=screwhead_diameter/2, r2=anchor_hole/2,$fn=100); // screw head

            }
            union()
            {
            }
        }
    }
//   screw();
dd_umbrella_stand(base_dimension , base_thickness , tube_inner , tube_height , tube_lower , tube_upper , tube_bevel_height);
```


[User]
I'd like to design a set of gears and racks for 3D printing. I've seen a few different implementations, but I need something that's flexible and customizable. I'm envisioning a system where I can easily define the gear type (spur, helical, double helical, or rack), the number of teeth (or pitch radius if that's more convenient), the helix angle for helical gears, the thickness, the center hole type and diameter, and a tooth clearance percentage to avoid binding. For racks, I'll also need to specify the height.

I'd prefer to use the "module" for tooth sizing, as that is common in my field, rather than "mm_per_tooth", but I can also use pitch if that's easier to design with. I need to be able to specify a pressure angle, since 28 degrees is not universal.

The generated OpenSCAD files should provide modules for each gear and rack type, along with functions to calculate properties like pitch radius and outer radius. The hole should be a true hole; it shouldn't leave a single layer on the surface (or else it will fuse in the print). Make the center hole a separate module that can create round, D-shaped, or hexagonal holes for bolts, and make the default hole type a simple circle. The D-shaft hole should have a small flat, to better fit D-shafts. Also, allow for a backlash parameter if required.

I'd like the system to be based on parametric design principles, meaning I can easily adjust the parameters in the customizer. I'm not attached to any specific libraries, so use the ones you think are most appropriate for creating these kinds of gears. No need to generate example uses of the modules. Please also ensure that helical gears are designed to mesh correctly (opposite helix angles), and that the double helical gears create a single object, not two halves next to each other.

[Assistant]
gear_generator.scad:
```
//////////////////////////////////////////////////////////////////////////////////////////////
// Public Domain Parametric Involute Spur Gear (and involute helical gear and involute rack)
// version 1.2
// by Leemon Baird, 2011, Leemon@Leemon.com
// http://www.thingiverse.com/thing:5505
// updated, 2015, by CNT.
// http://www.thingiverse.com/thing:900277
//   CNT updates:
//      -adopted NateTG's fix for rack
//      -fixed bad input to example gear
//      -replaced references to 3.14159... with PI
//      -removed use of depricated assign() function.
//      -added hole types
//      -added thingiverse customizer options
//
//
// This file is public domain.  Use it for any purpose, including commercial
// applications.  Attribution would be nice, but is not required.  There is
// no warranty of any kind, including its correctness, usefulness, or safety.
//
// This is parameterized involute spur (or helical) gear.  It is much simpler and less powerful than
// others on Thingiverse.  But it is public domain.  I implemented it from scratch from the
// descriptions and equations on Wikipedia and the web, using Mathematica for calculations and testing,
// and I now release it into the public domain.
//
//    http://en.wikipedia.org/wiki/Involute_gear
//    http://en.wikipedia.org/wiki/Gear
//    http://en.wikipedia.org/wiki/List_of_gear_nomenclature
//    http://gtrebaol.free.fr/doc/catia/spur_gear.html
//    http://www.cs.cmu.edu/~rapidproto/mechanisms/chpt7.html
//
// The module gear() gives an involute spur gear, with reasonable defaults for all the parameters.
// Normally, you should just choose the first 4 parameters, and let the rest be default values.
// The module gear() gives a gear in the XY plane, centered on the origin, with one tooth centered on
// the positive Y axis.  The various functions below it take the same parameters, and return various
// measurements for the gear.  The most important is pitch_radius, which tells how far apart to space
// gears that are meshing, and adendum_radius, which gives the size of the region filled by the gear.
// A gear has a "pitch circle", which is an invisible circle that cuts through the middle of each
// tooth (though not the exact center). In order for two gears to mesh, their pitch circles should
// just touch.  So the distance between their centers should be pitch_radius() for one, plus pitch_radius()
// for the other, which gives the radii of their pitch circles.
//
// In order for two gears to mesh, they must have the same mm_per_tooth and pressure_angle parameters.
// mm_per_tooth gives the number of millimeters of arc around the pitch circle covered by one tooth and one
// space between teeth.  The pitch angle controls how flat or bulged the sides of the teeth are.  Common
// values include 14.5 degrees and 20 degrees, and occasionally 25.  Though I've seen 28 recommended for
// plastic gears. Larger numbers bulge out more, giving stronger teeth, so 28 degrees is the default here.
//
// The ratio of number_of_teeth for two meshing gears gives how many times one will make a full
// revolution when the the other makes one full revolution.  If the two numbers are coprime (i.e.
// are not both divisible by the same number greater than 1), then every tooth on one gear
// will meet every tooth on the other, for more even wear.  So coprime numbers of teeth are good.
//
// The module rack() gives a rack, which is a bar with teeth.  A rack can mesh with any
// gear that has the same mm_per_tooth and pressure_angle.
//
// Some terminology:
// The outline of a gear is a smooth circle (the "pitch circle") which has mountains and valleys
// added so it is toothed.  So there is an inner circle (the "root circle") that touches the
// base of all the teeth, an outer circle that touches the tips of all the teeth,
// and the invisible pitch circle in between them.  There is also a "base circle", which can be smaller than
// all three of the others, which controls the shape of the teeth.  The side of each tooth lies on the path
// that the end of a string would follow if it were wrapped tightly around the base circle, then slowly unwound.
// That shape is an "involute", which gives this type of gear its name.
//
//////////////////////////////////////////////////////////////////////////////////////////////
// preview[view:south, tilt:top]
/* [Hidden] */
$fn=50;

/* [Parameters] */
//choose gear type
gear_type = 1; //[1:Gear(or single-helical), 0:Rack, 2:Double-helical]
//choose number of teeth or pitch radius (num teeth = pitch)
num_teeth_or_pitch = 16;
//helix angle for helical gears.  set to 0 for normal gears.  Note that meshing gears need opposite angles.
helix_angle = 0; //[-45:45]
//Gear thickness
thickness    = 6;
//hole diameter (flat to flat for hexagonal hole)
hole         = 5.2;
hole_type = 1; //[0:round, 1:D shaft, 2: hex bolt head]

//percent of tooth cutoff to allow for clearance between tooth.  A high clearance may cause backlash while a low percentage may cause binding if the gears aren't printed perfectly.
clearance_percentage = 5;

//height of gear rack (for racks only)
height_of_rack       = 10;

/* [Hidden] */
mm_per_tooth = 2*PI; //all meshing gears need the same mm_per_tooth (and the same pressure_angle)

ha = 90-helix_angle;
twst = 360*(thickness/tan(ha))/(2*PI*pitch_radius(mm_per_tooth,num_teeth_or_pitch));

if (gear_type==1) {
  difference () {
    gear(mm_per_tooth,num_teeth_or_pitch,thickness,0,twst,clearance=mm_per_tooth*clearance_percentage/100);
    if (hole_type == 2) {
      hexagon (hole,2*thickness);
    }
    if(hole_type == 1) {
      Dshaft(hole,hole/10.0,thickness*2);
    }
    if(hole_type == 0) {
      cylinder(h= thickness*2,r=hole/2,center=true);
    }
  }
}else if (gear_type==2) {
  difference () {
    union() {
      translate([0,0,thickness/4])
        gear(mm_per_tooth,num_teeth_or_pitch,thickness/2,0,twst,clearance=mm_per_tooth*clearance_percentage/100);
      translate([0,0,-thickness/4]) mirror([0,0,1])
        gear(mm_per_tooth,num_teeth_or_pitch,thickness/2,0,twst,clearance=mm_per_tooth*clearance_percentage/100);
    }
    if (hole_type == 2) {
      hexagon (hole,2*thickness);
    }
    if(hole_type == 1) {
      Dshaft(hole,hole/10.0,thickness*2);
    }
    if(hole_type == 0) {
      cylinder(h= thickness*2,r=hole/2,center=true);
    }
  }
} else {
  translate([-mm_per_tooth*num_teeth_or_pitch/2,0,0])
    rack(mm_per_tooth,num_teeth_or_pitch,thickness,height_of_rack);
}

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

module Dshaft(diameter,flat,height) {
  difference(){
    cylinder(h= height,r=diameter/2,center=true);
    translate([0,diameter-flat,0]) cube([diameter,diameter,height*2],center=true);
  }
}

//An involute spur gear, with reasonable defaults for all the parameters.
//Normally, you should just choose the first 4 parameters, and let the rest be default values.
//Meshing gears must match in mm_per_tooth, pressure_angle, and twist,
//and be separated by the sum of their pitch radii, which can be found with pitch_radius().
module gear (
  mm_per_tooth    = 3,    //this is the "circular pitch", the circumference of the pitch circle divided by the number of teeth
  number_of_teeth = 11,   //total number of teeth around the entire perimeter
  thickness       = 6,    //thickness of gear in mm
  hole_diameter   = 3,    //diameter of the hole in the center, in mm
  twist           = 0,    //teeth rotate this many degrees from bottom of gear to top.  360 makes the gear a screw with each thread going around once
  teeth_to_hide   = 0,    //number of teeth to delete to make this only a fraction of a circle
  pressure_angle  = 28,   //Controls how straight or bulged the tooth sides are. In degrees.
  clearance       = 0.0,  //gap between top of a tooth on one gear and bottom of valley on a meshing gear (in millimeters)
  backlash        = 0.0   //gap between two meshing teeth, in the direction along the circumference of the pitch circle
) {
  p  = mm_per_tooth * number_of_teeth / PI / 2;  //radius of pitch circle
  c  = p + mm_per_tooth / PI - clearance;        //radius of outer circle
  b  = p*cos(pressure_angle);                    //radius of base circle
  r  = p-(c-p)-clearance;                        //radius of root circle
  t  = mm_per_tooth/2-backlash/2 ;               //tooth thickness at PItch circle
  k  = -iang(b, p) - t/2/p/PI*180; {             //angle to where involute meets base circle on each side of tooth
    difference() {
      union() {
      for (i = [0:number_of_teeth-teeth_to_hide-1] )
        rotate([0,0,i*360/number_of_teeth])
          linear_extrude(height = thickness, center = true, convexity = 30, twist = twist)
            polygon(
              points=[
                [0, -hole_diameter/10],
                polar(r, -181/number_of_teeth),
                polar(r, r<b ? k : -180/number_of_teeth),
                q7(0/5,r,b,c,k, 1),q7(1/5,r,b,c,k, 1),q7(2/5,r,b,c,k, 1),q7(3/5,r,b,c,k, 1),q7(4/5,r,b,c,k, 1),q7(5/5,r,b,c,k, 1),
                q7(5/5,r,b,c,k,-1),q7(4/5,r,b,c,k,-1),q7(3/5,r,b,c,k,-1),q7(2/5,r,b,c,k,-1),q7(1/5,r,b,c,k,-1),q7(0/5,r,b,c,k,-1),
                polar(r, r<b ? -k : 180/number_of_teeth),
                polar(r, 181/number_of_teeth)
              ],
              paths=[[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16]]
            );
      //shouldn't need this but otherwise openSCAD creates a broken solid.
      cylinder(h=thickness,r=b,center=true);
      }
      cylinder(h=2*thickness+1, r=hole_diameter/2, center=true, $fn=50);
    }
  }
};
//these 4 functions are used by gear
function polar(r,theta)   = r*[sin(theta), cos(theta)];                            //convert polar to cartesian coordinates
function iang(r1,r2)      = sqrt((r2/r1)*(r2/r1) - 1)/PI*180 - acos(r1/r2); //unwind a string this many degrees to go from radius r1 to radius r2
function q7(f,r,b,r2,t,s) = q6(b,s,t,(1-f)*max(b,r)+f*r2);                         //radius a fraction f up the curved side of the tooth
function q6(b,s,t,d)      = polar(d,s*(iang(b,d)+t));                              //point at radius d on the involute curve

//a rack, which is a straight line with teeth (the same as a segment from a giant gear with a huge number of teeth).
//The "pitch circle" is a line along the X axis.
module rack (
  mm_per_tooth    = 3,    //this is the "circular pitch", the circumference of the pitch circle divided by the number of teeth
  number_of_teeth = 11,   //total number of teeth along the rack
  thickness       = 6,    //thickness of rack in mm (affects each tooth)
  height          = 120,   //height of rack in mm, from tooth top to far side of rack.
  pressure_angle  = 28,   //Controls how straight or bulged the tooth sides are. In degrees.
  backlash        = 0.0   //gap between two meshing teeth, in the direction along the circumference of the pitch circle
) {
  a = mm_per_tooth / PI; //addendum
    //Note: applied NateTG's fix
  t = a/2*cos(pressure_angle);         //tooth side is tilted so top/bottom corners move this amount
    for (i = [0:number_of_teeth-1] )
        translate([i*mm_per_tooth,0,0])
            linear_extrude(height = thickness, center = true, convexity = 30)
                polygon(
                    points=[
                        [-mm_per_tooth * 3/4,                 a-height],
                        [-mm_per_tooth * 3/4 - backlash,     -a],
                        [-mm_per_tooth * 1/4 + backlash - t, -a],
                        [-mm_per_tooth * 1/4 + backlash + t,  a],
                        [ mm_per_tooth * 1/4 - backlash - t,  a],
                        [ mm_per_tooth * 1/4 - backlash + t, -a],
                        [ mm_per_tooth * 3/4 + backlash,     -a],
                        [ mm_per_tooth * 3/4,                 a-height],
                    ],
                    paths=[[0,1,2,3,4,5,6,7]]
                );
};

//These 5 functions let the user find the derived dimensions of the gear.
//A gear fits within a circle of radius outer_radius, and two gears should have
//their centers separated by the sum of their pictch_radius.
function circular_pitch  (mm_per_tooth=3) = mm_per_tooth;                     //tooth density expressed as "circular pitch" in millimeters
function diametral_pitch (mm_per_tooth=3) = PI / mm_per_tooth;         //tooth density expressed as "diametral pitch" in teeth per millimeter
function module_value    (mm_per_tooth=3) = mm_per_tooth / PI;                //tooth density expressed as "module" or "modulus" in millimeters
function pitch_radius    (mm_per_tooth=3,number_of_teeth=11) = mm_per_tooth * number_of_teeth / PI / 2;
function outer_radius    (mm_per_tooth=3,number_of_teeth=11,clearance=0.1)    //The gear fits entirely within a cylinder of this radius.
  = mm_per_tooth*(1+number_of_teeth/2)/PI  - clearance;

//////////////////////////////////////////////////////////////////////////////////////////////
//example gear train.
//Try it with OpenSCAD View/Animate command with 20 steps and 24 FPS.
//The gears will continue to be rotated to mesh correctly if you change the number of teeth.

```


[User]
Hey! I'm looking to create a customisable keyring based on a Reuleaux triangle, and I've seen an existing design but want to start from scratch so I can learn. I want it to be parametric and easily adjustable.

The basic idea is a Reuleaux triangle shape with a few holes for attaching keys. The keyring should have a main diameter that's adjustable (maybe between 32 and 50 mm), a thickness that I can also change (say, between 2 and 10mm), a large hole in the center and then three smaller holes on the corners.

For the holes, I'd like to be able to set the diameter of the central large hole, and also the diameter of the smaller corner holes, which I think should be between 4 and 6mm each.

I’d like the Reuleaux triangle to be generated by the intersection of three cylinders, which should be easily done in OpenSCAD. I'm not sure of the best way to handle generating a Reuleaux shape with more sides - is it possible to create a parametric function to handle it, or maybe just have the option to select different numbers?

So, to summarize:

*   **Base Shape:** Reuleaux triangle, generated by intersecting 3 cylinders
*   **Main Diameter:** Adjustable parameter, ideally between 32mm and 50mm.
*   **Thickness:** Adjustable parameter between 2mm and 10mm.
*   **Large Central Hole:** Adjustable diameter
*   **Small Corner Holes:** Three small holes, adjustable diameter per hole, ideally between 4 and 6 mm.
*   **Optional:** Option to create Reuleaux polygons with more sides.

I don't need any library dependencies - standard OpenSCAD functions are great. I think having separate .scad files for the main design and maybe a test file would be great, to keep things organised.

[Assistant]
reuleaux_keyring.scad:
```
$fa=1/1;
$fs=0.5/1;

main_diameter=32;	//[32:50]
keyring_thickness=5;	//[2:0.5:10]
large_hole_diameter=24;	//[0:24]
small_hole_diameter=4;	//[4:0.2:6]

		difference ()										// removing holes from triangle
		{
			intersection_for(a=[0:120:359])						// intersection of 3 cylinders creating reuleaux triangle
			{
				rotate([0,0,a])
					translate([main_diameter/2,0,0])
						cylinder(r=main_diameter,h=keyring_thickness);
			};
			union()										// large & small holes
			{
				translate ([0,0,-1])
					cylinder(r=large_hole_diameter/2,h=keyring_thickness+2) ;			// large hole
				for(b=[0:120:359])							// 3 small holes
				{
					rotate([0,0,b])
						translate([main_diameter/2,0,-1])
							cylinder(r=small_hole_diameter/2,h=30);
				};
			};
		};

// designed and uploaded to Thingiverse by brianbutterfield (Daniel Rutterford) June 2015
```


[User]
I'd like to create a coin holder for Israeli Shekel coins. It should be a series of tubes, each sized for a different denomination of coin, arranged in a row. I want to be able to adjust the height of the tubes and also the base.

Here are the specific coin diameters, plus a little tolerance for each, which should be added to their respective radius.

*   0.5 Shekel: 26.0mm (radius + tolerance)
*   5 Shekel: 24.0mm (radius + tolerance)
*   10 Shekel: 23.0mm (radius + tolerance)
*   0.10 Shekel: 22.0mm (radius + tolerance)
*   2 Shekel: 21.6mm (radius + tolerance)
*   1 Shekel: 18.0mm (radius + tolerance)

The tolerance should be a variable I can set. The tube walls should have a consistent thickness.  I'd like the tubes to have gaps cut into the sides, so that you can easily see what coins are inside, and to make it easier to reach in and grab them. The gaps will be cut out of the side. The size of these gaps (in degrees of a circle) should be adjustable.  I'd also like to make it so that these coin holders can be stacked on top of each other; to accomplish this, the tubes should be indented into the base.

The base should be a separate piece which goes underneath all the coin tubes, and I want to have control over the height of the base, and how much it indents when stacking. The base should form a sort of outline around the tubes themselves. The entire model should be parametric so I can easily adjust all the values.

I'm imagining a single OpenSCAD file to generate this.

[Assistant]
coin_holder.scad:
```
part = "il"; // ["us":United States (common),"us_all":United States (all),"eu",Euro, "il":Israel]

// Size of the gaps in coin tubes, in degrees.
gap = 30; // [0:180]

// Diameter of the coin tube wall.
d_wall = 2;

// The height of the base.
h_base = 4;
// Indent the base of the tubes so that trays are stackable
h_indent = 0;
// The height of the coin tube
h = 60; // [1:300]

// Tolerance added to the inner diameter of the coin tubes
tolerance = 0.5;

/* [Hidden] */

tol = tolerance;

r_us_coin = [(24.26 + tol) / 2,  // Quarter
             (21.21 + tol) / 2,  // Nickel
             (19.05 + tol) / 2,  // Penny
             (17.91 + tol) / 2]; // Dime

r_us_all_coin = [(30.61 + tol) / 2,  // Half dollar
                 (26.49 + tol) / 2,  // Dollar
                 r_us_coin[0],
                 r_us_coin[1],
                 r_us_coin[2],
                 r_us_coin[3]];

r_eu_coin = [(25.75 + tol) / 2,  // 2
             (24.25 + tol) / 2,  // .50
             (23.25 + tol) / 2,  // 1
             (22.25 + tol) / 2,  // .20
             (21.25 + tol) / 2,  // .05
             (19.75 + tol) / 2,  // .10
             (18.75 + tol) / 2,  // .02
             (16.25 + tol) / 2]; // .01

r_il_coin = [(26.0 + tol) / 2,  // 0.5
             (24.0 + tol) / 2,  // 5
             (23.0 + tol) / 2,  // 10
             (22.0 + tol) / 2,  // .10
             (21.6 + tol) / 2,  // 2
             (18.0 + tol) / 2]; // 1

r_coin = (part == "us"     ? r_us_coin :
          part == "us_all" ? r_us_all_coin :
          part == "il"	   ? r_il_coin
                           : r_eu_coin);

function uvec(theta) = [cos(theta), sin(theta)];

// Locals... locals would be so nice...
function tan_pt(c1, r1, c2, r2) =
    tan_pt_(c1, r1, c2, r2,
            h=norm(c2 - c1), dc=c2 - c1);

function tan_pt_(c1, r1, c2, r2, h, dc) =
    tan_pt__(c1, r1, c2, r2, h,
            theta_0=acos((r1 - r2) / h),
            theta_1=atan(dc[1] / dc[0]));

function tan_pt__(c1, r1, c2, r2, h, theta_0, theta_1) =
    c1 + r1 * uvec(theta_0 + theta_1);

function coin_offset(n) = r_coin[n] + (n == 0 ? 0
                                              : d_wall +
                                                r_coin[n - 1] +
                                                coin_offset(n - 1));

module thing() {
    o = [0, 0];
    fudge = 400;

    linear_extrude(height=h + 1)
        polygon([o,
                 o + fudge * uvec(0 - gap + $fudge_gap),
                 o + fudge * uvec(0 + gap - $fudge_gap)]);
}

$fudge_d = 0;
$fudge_gap = 0;

module coins(n) {
    translate([0, r_coin[n], 0]) {
        difference() {
            cylinder(r=r_coin[n] + d_wall, h=h, $fn=128);

            translate([0, 0, -0.1])
            cylinder(r=r_coin[n] - $fudge_d, h=h + 0.2, $fn=128);

            translate([0, 0, -0.1])
                union() {
                    thing();
                    mirror()
                        thing();
                }
        }

        if (n + 1 < len(r_coin)) {
            translate([0, r_coin[n] + d_wall, 0])
                coins(n + 1);
        }
    }
}

module coin_base(n) {
    translate([0, coin_offset(n), 0])
        cylinder(r=r_coin[n] + d_wall,
                 h=h_base, $fn=128);
}

ncoin = len(r_coin) - 1;

c1 = [0, coin_offset(0)];
c2 = [0, coin_offset(ncoin)];
v1 = tan_pt(c1=c1,
            c2=c2,
            r1=r_coin[0] + d_wall,
            r2=r_coin[ncoin] + d_wall);
v2 = tan_pt(c1=c2,
            c2=c1,
            r1=r_coin[ncoin] + d_wall,
            r2=r_coin[0] + d_wall);

difference() {
    union() {
        translate([0, 0, h_base])
            coins(0);

        coin_base(0);
        coin_base(len(r_coin) - 1);

        linear_extrude(height=h_base)
            polygon([v1, [-1 * v2[0], v2[1]],
                     v2, [-1 * v1[0], v1[1]]]);
    }

    if (h_indent) {
        assign($fudge_d=0.5, $fudge_gap=2) {
            translate([0, 0, -h + h_indent])
                coins(0);
        }
    }
}

// vim:se sts=4 sw=4 et:

```


[User]
I'd like to create a customized key fob, something that's twisty and can have text on it. I'm thinking something similar to what's described in the attached SCAD file, but I'd like to request a design from scratch that's parametric.

Here's what I'm picturing and some of the parameters I'd like to be able to control:

*   **Text:** I need to be able to specify multiple lines of text, and control how many lines are shown (from 0 to 4, like the example). I'd also like to control the text's angle and have options for different fonts, styles (Regular, Bold, Italic, Bold Italic), and sizes. Text should scale in both width and height. Also, the vertical position of the text in the z-direction needs to be adjustable so I can raise or lower it. I need a way to adjust the horizontal position of the text in relation to the center of the fob, too, and the length of the area surrounding the text.

*   **Shape:** The fob should have a twisted central section, the length of which should be adjustable. There should also be a parameter to control the amount of twist and the percentage of the overall fob length where the twist starts and stops. I need the ability to scale the center section as well as its height (or extrusion distance) separately from the text. The ring on each end needs to be adjustable in its width (along x axis). I’d also like an option to have the ring extend all the way around the center piece or stop at the edges.

*   **Advanced:** I want to be able to control the number of facets for the rounded shapes, as well as the slice angle of the rings. There needs to be an overall model scale parameter as well. I’m envisioning the overall model to use linear extrusions with twist and scale parameters.

* **Libraries:** I'm not really sure which libraries would be necessary. I think it'd be nice if the design used some library to give us the ability to add text, but that may not be necessary if OpenSCAD can handle it natively.

Can you generate the SCAD file or files for this? I'm not asking for any specific code or improvements to the provided code – I'm happy to let you come up with your own implementation. I don't need any libraries included.

[Assistant]
twisted_key_fob.scad:
```
//
// Twisted key fob
// version 1.3   6/29/2015
// by daozenciaoyen
//

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

/* [Main] */
text_line_1 = "twisted" ;
text_line_2 = "key fob" ;
text_line_3 = "custom" ;
text_line_4 = "print" ;
show_lines = 4 ; // [0:4]
initial_text_angle = 0 ; // [0:5:360]

/* [Font] */
font_family_choice = 3 ; // [1:Liberation Sans,2:Montserrat,3:Open Sans,4:Oswald]
font_family_choice = 3+0 ;

// Not all combinations exist
font_style = "Bold" ; // [Regular, Bold, Italic, Bold Italic]
adjust_length = 10 ; // [-30:5:100]
text_center_horizontal = .2 ; // [-1.3:0.1:1.3]

/* [Shape] */
center_slope_length_percent = 25 ; // [0:5:100]
center_scale = 0.7 ; // [0.3:.1:1.5]
center_twist = 180 ; // [-360:5:360]
text_surface_height = 0.5 ; // [0.3:0.1:1.6]
text_surface_twist = 0 ; // [-360:5:360]
ring_stretch = 1.2 ; // [0.8:0.2:1.4]
full_ring = "No" ; // [Yes,No]

/* [Advanced] */
facets = 24 ; // [8:36]
ring_slice = 17 ; // [-20:20]
text_size = 13 ; // [10:30]
text_scale_width = 1 ; // [0.5:0.1:3]
text_scale_height = 2.3 ; // [0.5:0.1:3.5]
text_inner_z_adjust = 0 ; // [-5:10]

/* [Hidden] */
font_family_text_array =
    ["Liberation Sans","Montserrat","Open Sans","Oswald"] ;
font_family_size_array = [0.8,1,0.9,0.7] ;
font_family = font_family_text_array[font_family_choice-1] ;
font_width_adjust = font_family_size_array[font_family_choice-1] ;
font = str(font_family,":style=",font_style) ;
ext_height = 40 ;
text_surface_scale = center_scale + text_surface_height ;
adjust = ext_height / 2 + text_inner_z_adjust ;
text_angle = 360 / show_lines ;
center_length1_p1 = center_slope_length_percent / 100 ;
char_width = text_size * text_scale_width * font_width_adjust ;
text1 = str("",text_line_1) ;
text2 = str("",text_line_2) ;
text3 = str("",text_line_3) ;
text4 = str("",text_line_4) ;
text_length = max(len(text1),len(text2),len(text3),len(text4)) ;
text_width = text_length * char_width ;
center_length = text_width + adjust_length ;
center_length1 = center_length * center_length1_p1 ;
center_length2 = center_length - center_length1 ;
text_adjust_sign = adjust_length < 0 ? -1 : 1 ;
text_right_adjust = (center_length - text_width) / 2 *
  text_center_horizontal * text_adjust_sign ;
twist1 = center_twist * center_length1_p1 ;
twist2 = center_twist * (1 - center_length1_p1) ;
outer_ring_slice = 18 ;
model_scale = 0.3 ;
angle1 = (show_lines < 3) ? 90 : 0 ; // not used
angle1 = initial_text_angle ;
ring_size = 8 * 3 * 2 * ring_stretch;
ff = 0.001 ;

module ring()
{
  scale([3,3,3])
      rotate_extrude(convexity = 10, $fn = facets)
      translate([6, 0, 0])
      scale([1,3,1])
      circle(r = 2, $fn = facets);
}

module ring_slice(ring_slice)
{
  projection(cut=true)
    translate([0,0,ring_slice])
    rotate([90,0,0])
    ring() ;
}

module center_section(length,scale,twist,ring_slice)
{
  rotate([0,90,0])
  linear_extrude(height=length, center=true,
    convexity=10, twist=twist, slices=facets, scale=[scale,scale])
    ring_slice(ring_slice) ;
}

module draw_text(x_rot,text)
{
  rotate([x_rot,0,0])
  translate([text_right_adjust,0,adjust])
  linear_extrude(height = ext_height, center = true,
    convexity = 10, scale=[text_scale_width,text_scale_height])
  text(text, font = font, size=text_size,
    valign="center", halign="center") ;
}

// the main union
scale([model_scale,model_scale,model_scale])
union()
{
  // ring
  if (full_ring=="Yes")
  {
    translate([-center_length/2-ring_slice*ring_stretch,0,0])
      scale([ring_stretch,1,1])
      ring() ;
  }
  else
  {
    translate([-center_length/2,0,0])
      scale([ring_stretch,1,1])
      rotate([-90,0,90])
        difference()
        {
          translate([0,0,ring_slice])
            rotate([90,0,0])
            ring() ;
          translate([0,0,-ring_size/2-ff])
            cube([ring_size,ring_size,ring_size],
            center=true) ;
        }
  }

  // center section 1
  rotate([90,0,0])
    translate([-center_length/2+center_length1/2,0,0])
    center_section(center_length1+ff*2,center_scale,twist1,ring_slice) ;

  // center section 2
  rotate([90-twist1,0,0])
    translate([center_length1/2,0,0])
    scale([1,center_scale,center_scale])
    center_section(center_length2,1,twist2,ring_slice) ;

  // end cap
  translate([center_length/2-ff,0,0])
  scale([ring_stretch,center_scale,center_scale])
  rotate([-90,twist1+twist2,90])
    difference()
    {
      translate([0,0,ring_slice])
        rotate([90,0,0]) ring() ;
      translate([0,0,ring_size/2])
        cube([ring_size,ring_size,ring_size],
        center=true) ;
    }

  intersection()
  {
    // text
    union()
    {
      if (show_lines > 0) {
        draw_text(angle1,text1) ;
      }
      if (show_lines > 1) {
        draw_text(angle1+text_angle,text2) ;
      }
      if (show_lines > 2) {
        draw_text(angle1+text_angle*2,text3) ;
      }
      if (show_lines > 3) {
        draw_text(angle1+text_angle*3,text4) ;
      }
    }
    // text surface
    if (show_lines > 0) {
      translate([text_right_adjust,0,0])
        scale([1,text_surface_scale,text_surface_scale])
        center_section(center_length,1,text_surface_twist,
            outer_ring_slice) ;
    }
  }
}
```


[User]
Hey, I'm working on a tiny mechanical keyboard project using an ATTiny85 and need some help with OpenSCAD. I've got a basic single-key design already, but it's a bit rigid and I'd like to make it more flexible and user-friendly. I want to be able to easily adjust the size, switch layout, and some of the hardware mountings.

So, could you generate a set of parametric OpenSCAD files for me? I'd like the main body to be a box, and I need to be able to adjust the:

*   **Overall dimensions:**  The width, depth, and height of the main box.
*   **Wall thickness:** The thickness of the longer and shorter walls of the box should be adjustable separately.
*   **Switch holes:** I want to be able to define the number of switch holes in a row. These holes should be spaced based on standard mechanical keyboard switch spacing. I would need to specify the center-to-center distance of the switches.
*   **USB port:** There should be a cutout for a micro USB port that I can control the size and offset of from the bottom.
*   **Top plate:** I need a separate adjustable top plate to hold in the switches. The thickness of this should be adjustable.
*   **Bottom lip:** The bottom of the design needs a lip that I can control the width, depth, and height of.
*   **Clearance:** I'd like to be able to specify some clearance value that adds a tiny bit of space around things (like the switch holes).

I was hoping to use the `BOSL2` library for all the parameterization if that's possible, I'm pretty used to the way it works. I'm trying to avoid a lot of manual calculations, so having the BOSL2 functionality will be super helpful.

It's really important for this to be fully parametric; I'm envisioning making a lot of different-sized boards with different switch layouts.

Let me know if you need more information!

[Assistant]
onekey.scad:
```
switch_width = 14.1; // .1 for clearance

// outer cube itself
// total height of cube. be sure to factor in some play for the wires!
height = 22.5;
// total depth, or y value, of the cube
depth = 26.5;
// total width, or x value, of the cube
width = 21;
// thickness of longer walls on the cube
long_wall_thickness = 3;
// thickness of shorter walls on the cube
short_wall_thickness = 2;

// micro usb hole
// usb hole width
usb_width = 7.5;
// usb hole depth
usb_depth = depth;
// usb hole height
usb_height = 2;
// height from the bottom that the middle of the usb hole should be at
usb_height_offset = 6;

//top
//thickness of top plate that holds in the switch
top_thickness = 2;

//bottom
//bottom lip width
bottom_padding_width = 3;
// bottom lip depth
bottom_padding_depth = 3;
// bottom lip height. works a bit wonky right now; best to leave it at 1
bottom_padding_height = 1;

//amount of iterations to do for the switch holes. even numbers please! 4 = 2 on each side of the original
switch_hole_iterations = 4;

rotate([180,0,0]){
    difference(){
        cube([width,depth,height], center=true); // outside cube
        cube([width-long_wall_thickness,depth-short_wall_thickness,height], center = true); // inside cube

        translate([0,-depth/2,-height/2 + usb_height_offset])
        cube([usb_width,usb_depth,usb_height], center = true); // micro usb hole
    }

    // top
    translate([0,0,(height + top_thickness)/2])
    difference(){
        cube([width,depth,top_thickness], center = true);
        for (x = [0:switch_hole_iterations]){
            translate([19 * (x-switch_hole_iterations/2), 0, 0])
            cube([switch_width,switch_width,top_thickness], center = true);// switch hole
        }
    }
}

translate([0,depth + 10,-height/2 + (top_thickness + bottom_padding_height)/2 - top_thickness])
difference(){
    cube([width + bottom_padding_width,depth + bottom_padding_depth,top_thickness + bottom_padding_height], center = true);
    translate([0,0,bottom_padding_height]) cube([width+.1,depth+.1,top_thickness], center = true);
}
```


[User]
Okay, I'd like to get some help designing a thing I use to keep my rucksack straps tidy. They're basically little forms that I wrap the straps around to stop them from flapping about. I've been using a fixed size one I made before, but I need to be able to customize it now for different rucksacks and strap widths.

Essentially, the design is a rectangular block with a cylinder at each corner. The cylinders are all the same diameter, and stick out from the top of the block. I'd like the block and the cylinders to be hollow, so that the strap fits inside the resulting form. I need to be able to specify the length, width, and height of the rectangular block, the diameter of the cylinders, and also the thickness of the material used to make the block and cylinders hollow. The design should center the whole thing at origin.

I need a parametric OpenSCAD file, or files if that makes more sense. I don't need any special libraries, it should be a pretty simple design. I think it's best if we start with just one file with everything in. I was hoping you could create a modular design I can reuse for later things?

I think that about covers it, but let me know if you need any more information.

[Assistant]
rucksack.scad:
```
// Variable description

length      = 50    ;
width       = 30    ;
height      = 2     ;
diameter    = 10    ;
thickness   = 5     ;

  difference(){
    union(){
        cube( size = [ length, width, height], center = true)   ;
        translate( [ length/2, width/2, 0] ){
            cylinder( h = height, d = diameter, center = true)  ;
        }
        translate( [ length/2, -width/2, 0] ){
            cylinder( h = height, d = diameter, center = true)  ;
        }
        translate( [ -length/2, -width/2, 0] ){
            cylinder( h = height, d = diameter, center = true)  ;
        }
        translate( [ -length/2, width/2, 0] ){
            cylinder( h = height, d = diameter, center = true)  ;
        }
    }

  cube( size = [ length-2*thickness, width-2*thickness, height+2], center = true) ;

}

```