[User]
Okay, I need a customizable vent design for my printer enclosure, and I'd like it to be parametric so I can easily adjust the dimensions. I saw this design on Thingiverse (http://www.thingiverse.com/thing:55205) and I really liked the basic concept, but it needs to be adjustable to my specific needs.

Here's what I'm looking for:

**Core Functionality:**

*   **Vent Hole:** I need a circular hole that's covered by a rotating vent door. The vent door should have multiple openings that align with the vent hole when rotated. I need to be able to adjust the diameter of this main hole.
*   **Rotating Door:** This door should rotate to either open or close the vent. The door should be slightly wider than the hole it covers so that it effectively blocks the hole when closed.
*   **Inner Connector:** I want an inner part that attaches to the inside of the enclosure and secures the vent in place. This should also hide the edges of the hole I cut in the enclosure.
*   **Screw Fixation:** The vent assembly should be fixed to the enclosure using screws. I need to specify the number of screws used, and their diameter.
*   **Filament Joint Option:** I'd like the option to connect the vent door and the main vent hole using a small diameter hole for a 3D printing filament joint if needed (though this isn't required if you don't have a simple method for adding a rotational pivot).

**Parameters (that I need to be able to control):**

*   **`part`**: Allows selection of what to render. Options should include "Vent hole", "vent door", "inside part", "Vent hole and door" and "all".
*   **`Hole_Diameter`**: The diameter of the main ventilation hole in mm.
*   **`Thickness`**: The combined thickness of the vent door and the holed part (the part with the main hole) in mm.
*   **`Number_of_Ventilation_hole`**: The number of openings/holes in the vent door.
*   **`Plus_Width_of_door`**: How much wider the vent door is than the hole it covers in mm (this should control the overlap).
*   **`Tolerance`**: The tolerance (clearance) between the door and the vent hole in mm, for smooth rotation.
*   **`Enclosure_Thickness`**: The thickness of the enclosure wall (used to determine the height of the inside part).
*   **`Joint_Diameter`**: The diameter of the optional hole used to connect the door and the main vent hole, using a 3D printing filament (in mm). A value of 0 disables this.
*  **`Number_of_fixation`**: Number of screws used to attach to the enclosure
*  **`Screw_diameter`**: Diameter of the screws to be used for fixation

**Additional Details:**

*   I need to be able to view each part separately, or all parts together, as in the original design.
*   I'd like to keep it relatively simple, using basic OpenSCAD modules (like `cylinder`, `cube`, `difference`, `union`, `rotate`, and `translate`).
*   I don't need any external libraries used unless you think they'll significantly simplify the design. I'm more interested in something I can easily understand and edit myself.

I think that covers everything! Let me know if you need any clarifications.

[Assistant]
Vent.scad:
```
// Ilmion
// 2013-05

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

/* [Parameters] */
// Which one would you like to see?
part = "all"; // [first:Vent hole,second:vent door,third:inside part, both:Vent hole and door, all:all]
// Diameter (in mm) of the hole to be ventillated (default : 54 mm = 2 1/8 inches)
Hole_Diameter = 54; // [2.0:170.0]
// Thickness (in mm) total of the vent door and holed part (default : 4 mm)
Thickness = 4; // [1.0:20.0]
// Number of hole in the vent (default : 4)
Number_of_Ventilation_hole = 4; // [2:6]
// How much wider (in mm) are the door compare to the hole they hide (default : 1.5 mm)
Plus_Width_of_door = 1.5; // [1.00:5.00]
// Tolerance (in mm) for better fitting of the door in the vent (default : 0.25)
Tolerance = 0.25; // [0.00:1.00]
// Thickness (in mm) of the wall to be ventillated. Set the height of the inside part.
Enclosure_Thickness = 4; // [1:20]
// Diameter (in mm) of the hole used for connecting the door with the holed part (default : 3 for 3mm filament)
Joint_Diameter = 3; // [0: 10]

/* [Screws] */

// Number of screw fixation (default : 3)
Number_of_fixation = 3; // [2:6]
// Diameter (in mm) of the screw to be use to fix the vent (default : 3mm)
Screw_diameter = 3;

/* [Hidden] */

gAngle = 360/(Number_of_Ventilation_hole*2);
gCenterDiam = max(0.20 * (Hole_Diameter/2), 9);
gScrewSectionLength = Screw_diameter*5;
gScrewSectionWidth = Screw_diameter*5;
$fs=1;

print_part();

module print_part() {
	if (part == "first") {
		VentHole();
	} else if (part == "second") {
		VentDoor();
	} else if (part == "both") {
		VentHole();
		translate([Hole_Diameter+16,0,0]) VentDoor();
	} else if (part == "third") {
		InsideConnector();
	} else if (part == "all") {
		VentHole();
		translate([Hole_Diameter+gScrewSectionLength+6,0,0]) VentDoor();
		translate([Hole_Diameter/3*2+gScrewSectionLength+6, Hole_Diameter+gScrewSectionLength+6,0]) InsideConnector();
	} else {
		VentHole();
		translate([Hole_Diameter+gScrewSectionLength+6,0,0]) VentDoor();
		translate([Hole_Diameter/3*2+gScrewSectionLength+6, Hole_Diameter+gScrewSectionLength+6,0]) InsideConnector();
	}
}

module ScrewSection()
{
	difference()
	{
		union()
		{
			cube([4,gScrewSectionWidth,Thickness]);
			translate([4,gScrewSectionWidth,0]) rotate([90,0,0]) linear_extrude(height = gScrewSectionWidth) polygon([[0,0], [0, Thickness], [gScrewSectionLength,0]]);
		}
		translate([4, 1.5, 1.5]) cube([gScrewSectionLength+10, gScrewSectionWidth-3, Thickness+5]);
		translate([gScrewSectionLength*0.5+2,gScrewSectionWidth/2,-1]) cylinder(h=10, r=Screw_diameter/2);
		translate([gScrewSectionLength,-1,-1]) cube([20,gScrewSectionWidth+2,20]);
	}
}

module FlatScrewSection()
{
	difference()
	{
		cube([gScrewSectionLength,gScrewSectionWidth,2]);
		translate([gScrewSectionLength*0.5+2, gScrewSectionWidth/2,-1]) cylinder(h=10, r=Screw_diameter/2);
	}
}

module Helice(pAngle, pDiam, pHeight, pWidth = 0.1)
{
	union()
	{
		for (i = [0:Number_of_Ventilation_hole-1])
		{
			hull()
			{
				rotate([0,0, (i * pAngle) + (i * (360 - (Number_of_Ventilation_hole*pAngle)) / Number_of_Ventilation_hole)])
				{
					translate([0, pWidth/-2,0]) cube([pDiam, pWidth, pHeight]);
					rotate([0,0, pAngle]) translate([0, pWidth/-2,0])cube([pDiam, pWidth, pHeight]);
				}
			}
		}
	}
}

module VentHole()
{
	union()
	{
	difference()
	{
		union()
		{
			difference()
			{
				Helice(gAngle, Hole_Diameter, Thickness/2);
				translate([0, 0, -1])
				{
					difference()
					{
						cylinder(h=Thickness+2, r=Hole_Diameter + 5);
						translate([0, 0, -1])
						{
							cylinder(h=Thickness+4, r=(Hole_Diameter / 2) + 5);
						}
					}
				}
			}
			cylinder(h=Thickness/2, r=gCenterDiam / 2);
			difference()
			{
				cylinder(h=Thickness, r=Hole_Diameter / 2 + 5);
				translate([0,0,-1]) cylinder(h=Thickness+2, r=Hole_Diameter / 2);
			}
			difference()
			{
				cylinder(h=Thickness/2, r=Hole_Diameter/2+1);
				translate([0,0,-1]) cylinder(h=Thickness/2+2, r=Hole_Diameter/2-1.5);
			}
		}
		if(Joint_Diameter > 0)
		{
			translate([0,0,-3]) cylinder(h=Thickness + 10, r=Joint_Diameter/2);
		}
	}
	for (j = [0:Number_of_fixation-1])
	{
		rotate([0,0,j*(360/Number_of_fixation)]) translate([Hole_Diameter/2+2, gScrewSectionWidth/-2,0]) ScrewSection();
	}
	}
}

module Pognee()
{
	rotate([90,0,0])
	difference()
	{
		cylinder(h=2, r=0.07*Hole_Diameter);
		translate([Hole_Diameter/2*-1,Hole_Diameter*-1,-1]) cube(Hole_Diameter,Hole_Diameter,4);
	}
}

module VentDoor()
{
	difference()
	{
		union()
		{
			difference()
			{
				Helice(gAngle, Hole_Diameter, Thickness/2, Plus_Width_of_door);

				translate([0,0,-1])
				{
					difference()
					{
						cylinder(h=Thickness/2+2, r=Hole_Diameter*2);
						translate([0,0,-1]) cylinder(h=Thickness/2+4, r=Hole_Diameter/2-Tolerance);
					}
				}
			}
			cylinder(h=Thickness/2, r=gCenterDiam/2);
			difference()
			{
			cylinder(h=Thickness/2, r=Hole_Diameter/2-Tolerance);
			translate([0,0,-1]) cylinder(Thickness/2+2, r=Hole_Diameter/2-2);
			}
			for (j = [0:Number_of_Ventilation_hole-1])
			{
				rotate([0,0,j*(360/Number_of_Ventilation_hole)]) translate([Hole_Diameter/2-0.07*Hole_Diameter-Tolerance-1,2,Thickness/2-0.1])
				{
					Pognee();
				}
			}
		}
		if(Joint_Diameter > 0)
		{
			translate([0,0,-3]) cylinder(h=Thickness + 10, r=Joint_Diameter/2);
		}
	}
}

module InsideConnector()
{
	difference()
	{
		union()
		{
			cylinder(h=Enclosure_Thickness+2, r=Hole_Diameter/2);
			cylinder(h=2, r=Hole_Diameter / 2 + 5);
		}
		translate([0,0,-1]) cylinder(h=Enclosure_Thickness+4, r=Hole_Diameter/2-2);
	}
	for (j = [0:Number_of_fixation-1])
	{
		rotate([0,0,j*(360/Number_of_fixation)]) translate([Hole_Diameter/2+2, gScrewSectionWidth/-2,0]) FlatScrewSection();
	}
}

```


[User]
Okay, I need some help designing a parametric badge in OpenSCAD. I'm aiming for something similar to the "DeltaBadge.scad" I found, but I'd like it to be more flexible and easier to customize.

Here's what I'm looking for:

**Overall Structure:**

*   The badge should be circular with multiple raised layers.
*   The base layer should be a flat circle providing a solid backing.
*   Subsequent layers should be concentric rings with variable thicknesses and distances from the center.
*   A text layer should be included, placed in a circle between the rings.
*   A 3D model should be projected onto a layer and scaled appropriately.

**Parametric Controls:**

*   **`overall_size`:**  Overall diameter of the badge (in cm).
*   **`base_height`:** Height of the base layer.
*   **`layer_raise`:** Vertical distance between the top of each subsequent layer.
*   **`ring_count`:** Number of concentric rings.
*   **`ring_thicknesses`:** List of thicknesses for each ring.
*   **`ring_start_radii`:** List of starting radii from the center for each ring.
*   **`text`:** The text to be displayed on the badge.
*   **`letter_scale`:** Scaling factor for the letters.
*   **`text_rotation_offset`:** The starting rotation angle of the text
*   **`letter_rotation_increment`:**  Amount to rotate each letter.
*  **`text_radius`:** The radius from center that the text should be placed.
*   **`projection_angle`:** 3D vector defining the projection angle of the model.
*    **`model_layers`**: List of model elements to include (e.g., "bottom", "effector", "pillars", "top" or "all").
*   **`model_height`**: Height of the 3D model.
*   **`model_radius`**: Radius of the 3D model base.
*   **`model_base_sides`**: Number of sides for the base and top (e.g., 3 for a triangle, a large number for circle.)
*   **`model_thickness`**: Thickness of the base/top layer of the 3D model.
*   **`model_beam_thickness`**: Thickness of the "pillar" structures of the model.
*   **`model_rod_thickness`**: Thickness of the "rod" structures of the model.
*   **`model_rod_angle`**: Angle of the rods on the 3D model.
*   **`model_arm_length`**: Length of the arms on the 3D model.
*   **`include_holes`**: Boolean value determining whether to cut out the inside of the top and bottom of the model.

**Specific Details:**

*   I'd like the text to be placed in a circle, with each letter rotated by an increment.
*   I want to be able to specify which parts of the 3D model (like a simplified delta robot model) are included.
*   The text should use the "spiffsans" font. I have the `spiffsans.scad` file so please use that as a module, not an included library.

**Libraries:**

*   I'm using the `spiffsans.scad` file for the font (mentioned above).

**Output:**

*   The OpenSCAD file should be fully parameterized, making it easy to adjust the size, dimensions, and text, and the model.

Basically, I want to create a flexible badge generator that looks like the `DeltaBadge.scad` but with more control and easier customization. I want to be able to control the number and thickness of rings, position the text, use a projection angle on the model, and control which parts of the model are displayed.

Could you help me generate the OpenSCAD code for this?

[Assistant]
DeltaBadge.scad:
```
// rrhb 5/14/2013 creative commons

text="Delta  Robot  Fan"; // border text
size=6;                   // overall size in cm
letter_scale=1.0;         // scale of the letters
project=[30,-50,10];      // projection angle deltabot model in badge
zraise=2;                 // amount to raise each layer
backh=3;                  // height of the back

offset=[0];

// these are not in the scaled units
ring_thickness=8; // how thick the is the ring
ring_start=140;  // distance from radius ring starts

// kossel 'model' parameters
// thx to my friend jrocholl for introducing delta printers to reprap
h=200;   // height
r=100;   // radius
base_sides=3;   // 3 for "kossel", a big number for a 'round' top and bottom
t=10;    // thickness of top and bottom
beam=10; // thickness of 'pillars'
rod=4;   // thickness of 'carbon rods'
ang=220; // angle of rods
arm=120; // arm length

include <spiffsans.scad>; // thx stuartpb spiffsans http://www.thingiverse.com/thing:13347

//deltabot();
scale(size*.025,size*.025,1) badge();

module badge() {
  linear_extrude(height=backh) back();
  linear_extrude(height=backh+zraise) rings();
  linear_extrude(height=backh+zraise*2) letters(text);
  linear_extrude(height=backh+zraise*2) projection(cut=false) rotate(project) deltabot(all=false,bottom=true);
  linear_extrude(height=backh+zraise*3) projection(cut=false) rotate(project) deltabot(all=false,effector=true);
  linear_extrude(height=backh+zraise*4) projection(cut=false) rotate(project) deltabot(all=false,pillars=true);
  linear_extrude(height=backh+zraise*5) projection(cut=false) rotate(project) deltabot(all=false,top=true);
}

// render badge back
module back() {
     circle(r=ring_start+letter_scale*50+ring_thickness);
}

// render rings
module rings() {
  difference() { // inner ring
     circle(r=ring_start+ring_thickness);
     circle(r=ring_start);
    }
  difference() {  // outer ring
     circle(r=ring_start+letter_scale*50+ring_thickness);
     circle(r=ring_start+letter_scale*50);
    }
}

// render letters
module letters(text,orientation=270) {
  for (i=[0:len(text)]) {
		rotate([0,0,orientation-i*15]) translate([0,145,0])
        scale([letter_scale*5,letter_scale*5,letter_scale*5]) spiffsans_puts(text[i],1,offset);
  }
}

// a tiny model of a deltabot.
// it's a bit hideus but serves the purpose
// the rendering flags are set to render the projection in layers
module deltabot(all=true,bottom=false,top=false,pillars=false,effector=false) {
  translate([0,0,-h/2]) {
    if (all || bottom) cylinder(r=100,h=t,$fn=base_sides);  // bottom
    // if (all || bottom) cylinder(r=50,h=t);  // "round" heating plate if you want it
    for (i=[0:120:240]) {
     translate([r*cos(i),r*sin(i),0]) translate([0,0,h/2]) {
       if (all || pillars) cube([beam,beam,h],true);
       if (all || effector) { translate([0,0,h/3])
         rotate([0,0,i]) rotate([0,ang,0]) {
           translate([0,beam/2,0]) cylinder(r=rod/2,h=arm);
           translate([0,-beam/2,0])cylinder(r=rod/2,h=arm);
         }
       }
     }
  }
  if (all || effector) translate([0,0,h/2+h/3-arm*cos(ang-180)]) rotate([0,0,30]) cylinder(r=30,h=5,$fn=6); // effector

  if (all || top) translate([0,0,h-t]) difference() {
        cylinder(r=100,h=t,$fn=base_sides);  // top
        cylinder(r=100-beam,h=t,$fn=base_sides);  // comment out if you want a solid top
     }

  }
}
```
spiffsans.scad:
```
// Spiff Sans
// Author: Stuart P. Bentley <stuart@testtrack4.com>

module spiffsans_puts(letters, count, offsets)
{
  for(i=[0:count-1])
  {
    translate([offsets[i],0,0])
    {
      spiffsans_lookup_draw(letters[i]);
    }
  }
}

module spiffsans_lookup_draw(char)
{
  if(char==" ") {} //silly lookup, space can't be printed
  else if(char =="!") spiffsans_exclaim();
  else if(char =="-") spiffsans_hyphen();
  else if(char ==".") spiffsans_period();
  else if(char =="0") spiffsans_digit_0();
  else if(char =="1") spiffsans_digit_1();
  else if(char =="2") spiffsans_digit_2();
  else if(char =="3") spiffsans_digit_3();
  else if(char =="4") spiffsans_digit_4();
  else if(char =="5") spiffsans_digit_5();
  else if(char =="6") spiffsans_digit_6();
  else if(char =="7") spiffsans_digit_7();
  else if(char =="8") spiffsans_digit_8();
  else if(char =="9") spiffsans_digit_9();
  else if(char ==":") spiffsans_colon();
  else if(char =="?") spiffsans_question();
  else if(char =="A" || char == "a") spiffsans_capital_a();
  else if(char =="B" || char == "b") spiffsans_capital_b();
  else if(char =="C" || char == "c") spiffsans_capital_c();
  else if(char =="D" || char == "d") spiffsans_capital_d();
  else if(char =="E" || char == "e") spiffsans_capital_e();
  else if(char =="F" || char == "f") spiffsans_capital_f();
  else if(char =="G" || char == "g") spiffsans_capital_g();
  else if(char =="H" || char == "h") spiffsans_capital_h();
  else if(char =="I" || char == "i") spiffsans_capital_i();
  else if(char =="J" || char == "j") spiffsans_capital_j();
  else if(char =="K" || char == "k") spiffsans_capital_k();
  else if(char =="L" || char == "l") spiffsans_capital_l();
  else if(char =="M" || char == "m") spiffsans_capital_m();
  else if(char =="N" || char == "n") spiffsans_capital_n();
  else if(char =="O" || char == "o") spiffsans_capital_o();
  else if(char =="P" || char == "p") spiffsans_capital_p();
  else if(char =="Q" || char == "q") spiffsans_capital_q();
  else if(char =="R" || char == "r") spiffsans_capital_r();
  else if(char =="S" || char == "s") spiffsans_capital_s();
  else if(char =="T" || char == "t") spiffsans_capital_t();
  else if(char =="U" || char == "u") spiffsans_capital_u();
  else if(char =="V" || char == "v") spiffsans_capital_v();
  else if(char =="W" || char == "w") spiffsans_capital_w();
  else if(char =="X" || char == "x") spiffsans_capital_x();
  else if(char =="Y" || char == "y") spiffsans_capital_y();
  else if(char =="Z" || char == "z") spiffsans_capital_z();
  else echo(str("Unknown character: ", char));
}

module spiffsans_exclaim()
{
  polygon(points=[[0,3],[0,10],[2,10],[2,3],[0,0],[0,2],[2,2],[2,0]],paths=[[0,1,2,3],[4,5,6,7]]);
}

module spiffsans_hyphen()
{
  polygon(points=[[0,4],[0,6],[4,6],[4,4]],paths=[[0,1,2,3]]);
}

module spiffsans_period()
{
  polygon(points=[[0,0],[0,2],[2,2],[2,0]],paths=[[0,1,2,3]]);
}

module spiffsans_digit_0()
{
  polygon(points=[[5,0],[1,0],[0,2],[0,8],[1,10],[5,10],[6,8],[6,2],[2,8],[4,8],[2,5],[2,2],[4,5],[4,2]],paths=[[0,1,2,3,4,5,6,7],[8,9,10],[11,12,13]]);
}

module spiffsans_digit_1()
{
  polygon(points=[[0,0],[0,2],[2,2],[2,7],[0,7],[2,10],[4,10],[4,2],[5,2],[5,0]],paths=[[0,1,2,3,4,5,6,7,8,9]]);
}

module spiffsans_digit_2()
{
  polygon(points=[[0,0],[0,2],[4,6],[4,8],[2,8],[2,6],[0,6],[0,8],[1,10],[5,10],[6,8],[6,5.5],[2.5,2],[6,2],[6,0]],paths=[[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14]]);
}

module spiffsans_digit_3()
{
  polygon(points=[[1,0],[0,2],[0,4],[2,4],[2,2],[4,2],[4,4],[3,4],[3,6],[4,6],[4,8],[2,8],[2,6],[0,6],[0,8],[1,10],[5,10],[6,8],[6,6],[5.5,5],[6,4],[6,2],[5,0]],paths=[[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22]]);
}

module spiffsans_digit_4()
{
  polygon(points=[[4,0],[4,4],[0,4],[0,10],[2,10],[2,6],[4,6],[4,10],[6,10],[6,0]],paths=[[0,1,2,3,4,5,6,7,8,9]]);
}

module spiffsans_digit_5()
{
  polygon(points=[[0,0],[0,2],[4,2],[4.5,3],[4,4],[0,4],[0,10],[6,10],[6,8],[2,8],[2,6],[5,6],[6,4],[6,2],[5,0]],paths=[[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14]]);
}

module spiffsans_digit_6()
{
  polygon(points=[[1,0],[0,2],[0,8],[1,10],[5,10],[5.5,8],[2,8],[2,6],[5,6],[6,4],[6,2],[5,0],[2,2],[2,4],[4,4],[4,2]],paths=[[0,1,2,3,4,5,6,7,8,9,10,11],[12,13,14,15]]);
}

module spiffsans_digit_7()
{
  polygon(points=[[1,0],[1,3],[3,8],[0,8],[0,10],[5,10],[5,8],[3,3],[3,0]],paths=[[0,1,2,3,4,5,6,7,8]]);
}

module spiffsans_digit_8()
{
  polygon(points=[[1,0],[0,2],[0,4],[0.5,5],[0,6],[0,8],[1,10],[5,10],[6,8],[6,6],[5.5,5],[6,4],[6,2],[5,0],[2,6],[2,8],[4,8],[4,6],[2,2],[2,4],[4,4],[4,2]],paths=[[0,1,2,3,4,5,6,7,8,9,10,11,12,13],[14,15,16,17],[18,19,20,21]]);
}

module spiffsans_digit_9()
{
  polygon(points=[[1,0],[0,2],[4,2],[4,4],[1,4],[0,6],[0,8],[1,10],[5,10],[6,8],[6,2],[5,0],[2,6],[2,8],[4,8],[4,6]],paths=[[0,1,2,3,4,5,6,7,8,9,10,11],[12,13,14,15]]);
}

module spiffsans_colon()
{
  polygon(points=[[0,6],[0,8],[2,8],[2,6],[0,2],[0,4],[2,4],[2,2]],paths=[[0,1,2,3],[4,5,6,7]]);
}

module spiffsans_question()
{
  polygon(points=[[2,3],[4,6],[4,8],[2,8],[2,6],[0,6],[0,8],[2,10],[4,10],[6,8],[6,6],[4,3],[2,0],[2,2],[4,2],[4,0]],paths=[[0,1,2,3,4,5,6,7,8,9,10,11],[12,13,14,15]]);
}

module spiffsans_capital_a()
{
  polygon(points=[[0,0],[0,8],[1,10],[5,10],[6,8],[6,0],[4,0],[4,4],[2,4],[2,0],[2,6],[2,8],[4,8],[4,6]],paths=[[0,1,2,3,4,5,6,7,8,9],[10,11,12,13]]);
}

module spiffsans_capital_b()
{
  polygon(points=[[0,0],[0,10],[5,10],[6,8],[6,6],[5.5,5],[6,4],[6,2],[5,0],[2,6],[2,8],[4,8],[4,6],[2,2],[2,4],[4,4],[4,2]],paths=[[0,1,2,3,4,5,6,7,8],[9,10,11,12],[13,14,15,16]]);
}

module spiffsans_capital_c()
{
  polygon(points=[[6,0],[1,0],[0,2],[0,8],[1,10],[6,10],[6,8],[2,8],[2,2],[6,2]],paths=[[0,1,2,3,4,5,6,7,8,9]]);
}

module spiffsans_capital_d()
{
  polygon(points=[[0,0],[0,10],[5,10],[6,8],[6,2],[5,0],[2,2],[2,8],[4,8],[4,2]],paths=[[0,1,2,3,4,5],[6,7,8,9]]);
}

module spiffsans_capital_e()
{
  polygon(points=[[0,0],[0,10],[5,10],[5,8],[2,8],[2,6],[4,6],[4,4],[2,4],[2,2],[5,2],[5,0]],paths=[[0,1,2,3,4,5,6,7,8,9,10,11]]);
}

module spiffsans_capital_f()
{
  polygon(points=[[0,0],[0,10],[5,10],[5,8],[2,8],[2,6],[4,6],[4,4],[2,4],[2,0]],paths=[[0,1,2,3,4,5,6,7,8,9]]);
}

module spiffsans_capital_g()
{
  polygon(points=[[6,0],[1,0],[0,2],[0,8],[1,10],[5.5,10],[6,8],[2,8],[2,2],[4,2],[4,6],[6,6]],paths=[[0,1,2,3,4,5,6,7,8,9,10,11]]);
}

module spiffsans_capital_h()
{
  polygon(points=[[0,0],[0,10],[2,10],[2,6],[4,6],[4,10],[6,10],[6,0],[4,0],[4,4],[2,4],[2,0]],paths=[[0,1,2,3,4,5,6,7,8,9,10,11]]);
}

module spiffsans_capital_i()
{
  polygon(points=[[0,0],[0,2],[1.5,2],[1.5,8],[0,8],[0,10],[5,10],[5,8],[3.5,8],[3.5,2],[5,2],[5,0]],paths=[[0,1,2,3,4,5,6,7,8,9,10,11]]);
}

module spiffsans_capital_j()
{
  polygon(points=[[0.5,0],[0,1],[0,4],[2,4],[2,2],[4,2],[4,8],[0,8],[0,10],[6,10],[6,1],[5.5,0]],paths=[[0,1,2,3,4,5,6,7,8,9,10,11]]);
}

module spiffsans_capital_k()
{
  polygon(points=[[0,0],[0,10],[2,10],[2,6],[4,6],[4,10],[6,10],[6,6],[5,5],[6,4],[6,0],[4,0],[4,4],[2,4],[2,0]],paths=[[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14]]);
}

module spiffsans_capital_l()
{
  polygon(points=[[0,0],[0,10],[2,10],[2,2],[5,2],[5,0]],paths=[[0,1,2,3,4,5]]);
}

module spiffsans_capital_m()
{
  polygon(points=[[0,0],[0,8],[1,10],[9,10],[10,8],[10,0],[8,0],[8,8],[6,8],[6,0],[4,0],[4,8],[2,8],[2,0]],paths=[[0,1,2,3,4,5,6,7,8,9,10,11,12,13]]);
}

module spiffsans_capital_n()
{
  polygon(points=[[0,0],[0,8],[1,10],[5,10],[6,8],[6,0],[4,0],[4,8],[2,8],[2,0]],paths=[[0,1,2,3,4,5,6,7,8,9]]);
}

module spiffsans_capital_o()
{
  polygon(points=[[5,0],[1,0],[0,2],[0,8],[1,10],[5,10],[6,8],[6,2],[2,2],[2,8],[4,8],[4,2]],paths=[[0,1,2,3,4,5,6,7],[8,9,10,11]]);
}

module spiffsans_capital_p()
{
  polygon(points=[[0,0],[0,10],[5,10],[6,8],[6,6],[5,4],[2,4],[2,0],[2,6],[2,8],[4,8],[4,6]],paths=[[0,1,2,3,4,5,6,7],[8,9,10,11]]);
}

module spiffsans_capital_q()
{
  polygon(points=[[1,0],[0,2],[0,8],[1,10],[5,10],[6,8],[6,0],[2,2],[2,8],[4,8],[4,2]],paths=[[0,1,2,3,4,5,6],[7,8,9,10]]);
}

module spiffsans_capital_r()
{
  polygon(points=[[0,0],[0,10],[5,10],[6,8],[6,6],[5.5,5],[6,4],[6,0],[4,0],[4,4],[2,4],[2,0],[2,6],[2,8],[4,8],[4,6]],paths=[[0,1,2,3,4,5,6,7,8,9,10,11],[12,13,14,15]]);
}

module spiffsans_capital_s()
{
  polygon(points=[[1,0],[0,2],[0,3],[2,3],[2,2],[4,2],[4,4],[1,4],[0,5],[0,8],[1,10],[5,10],[6,8],[6,7],[4,7],[4,8],[2,8],[2,6],[5,6],[6,5],[6,2],[5,0]],paths=[[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21]]);
}

module spiffsans_capital_t()
{
  polygon(points=[[2,0],[2,8],[0,8],[0,10],[6,10],[6,8],[4,8],[4,0]],paths=[[0,1,2,3,4,5,6,7]]);
}

module spiffsans_capital_u()
{
  polygon(points=[[1,0],[0,2],[0,10],[2,10],[2,2],[4,2],[4,10],[6,10],[6,2],[5,0]],paths=[[0,1,2,3,4,5,6,7,8,9]]);
}

module spiffsans_capital_v()
{
  polygon(points=[[2,0],[0,4],[0,10],[2,10],[2,4],[4,4],[4,10],[6,10],[6,4],[4,0]],paths=[[0,1,2,3,4,5,6,7,8,9]]);
}

module spiffsans_capital_w()
{
  polygon(points=[[9,0],[1,0],[0,2],[0,10],[2,10],[2,2],[4,2],[4,10],[6,10],[6,2],[8,2],[8,10],[10,10],[10,2]],paths=[[0,1,2,3,4,5,6,7,8,9,10,11,12,13]]);
}

module spiffsans_capital_x()
{
  polygon(points=[[0,0],[0,4],[1,5],[0,6],[0,10],[2,10],[2,6],[4,6],[4,10],[6,10],[6,6],[5,5],[6,4],[6,0],[4,0],[4,4],[2,4],[2,0]],paths=[[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17]]);
}

module spiffsans_capital_y()
{
  polygon(points=[[2,0],[2,4],[1,4],[0,6],[0,10],[2,10],[2,6],[4,6],[4,10],[6,10],[6,6],[5,4],[4,4],[4,0]],paths=[[0,1,2,3,4,5,6,7,8,9,10,11,12,13]]);
}

module spiffsans_capital_z()
{
  polygon(points=[[0,0],[0,2],[3,8],[0,8],[0,10],[5,10],[5,8],[2,2],[5,2],[5,0]],paths=[[0,1,2,3,4,5,6,7,8,9]]);
}

```


[User]
Okay, I need help designing a parametric 3D model for a kendo sword hilt. I've already made a quick one, but I want a more robust and customizable version.

Essentially, it’s a cylindrical hilt that fits over the tang of a kendo practice sword (the part that extends from the blade). It should have a hollow center to accommodate the tang. I want the hilt to be customizable with text engraved around it, and also be easily configurable for different sword dimensions.

Here are the core elements and parameters I need:

*   **Hilt Text:** This should be a text string that can be customized. The text should be engraved around the hilt, repeated four times, so it appears on all sides. The text should be readable when the hilt is used.
*   **Thickness:**  This is the thickness of the hilt wall, essentially the difference between the outer and inner radius. I need this to be adjustable.
*   **Outer Diameter:** This is the outer diameter of the hilt.  It needs to be a parameter.
*   **Inner Diameter:** This is the diameter of the hole in the center that fits over the sword tang. This should be a parameter as well.
*   **Hilt Length/Height:** This is the length of the cylindrical part of the hilt. I want to specify this as well, and it's important because that length forms the length of the cylinder.
*   **Rounded Edges:** The outer edges of the hilt should be rounded over. I envision this as a torus extrusion. This should be parametrically adjustable, and its extrusion should be centered on the edge of the cylinder.

Here’s what I want the OpenSCAD file to do:

1.  **Main Body:** Create the main cylindrical body of the hilt based on the `outer_diameter`, `inner_diameter`, and `Hilt Length`. The inner diameter should create a hole so the hilt can be placed over the sword tang.
2.  **Engraved Text:** Use a `writecylinder()` module, or equivalent from the `Write.scad` library, to engrave the specified `Hilt Text` four times around the circumference. The text should be placed slightly away from the inner diameter of the cylinder, so it's clear and readable. I want to make sure I can specify the face the text is written on as well (i.e. the "top" face).
3.  **Rounded Edges:** Create the rounded edges on either end of the hilt using a torus extrusion centered at the end of the cylinder.  It should be adjustable and not extend far beyond the cylinder edge.
4.  **Parametric Design:** All of the above parameters (text, thickness, outer diameter, inner diameter, length, and rounded edge radius) should be easily adjustable within the OpenSCAD file so I can adapt the design.
5.  **Units:** I'd prefer to work in millimeters.
6.  **File Structure:** I want the OpenSCAD file to be well structured and commented so that it is easy for me to understand the different sections and modify things further.

Could you generate an OpenSCAD file that implements all of this? I already have the `Write.scad` library available for text generation and I will include that in my directory.

[Assistant]
Kendo_sword_hilt.scad:
```

// Hilt Text
hilt_text = "THE DOJO";

// Hilt Thickness
thickness = 7.5;
// Hilt Outer Diameter
outer_diameter = 78;
// Hilt Inner Diameter
inner_diameter = 32;

use <write/Write.scad>

$fn=60;
union () {
difference () {
cylinder(r=outer_diameter/2-thickness/2,h=thickness);
translate([0,0,-0.25]) cylinder(r=inner_diameter/2,h=thickness+1);
writecylinder(hilt_text,[0,0,0],inner_diameter/2+0.20*outer_diameter,thickness,face="top");
rotate ([0,0,90]) writecylinder(hilt_text,[0,0,0],inner_diameter/2+0.20*outer_diameter,thickness,face="top");
rotate ([0,0,180]) writecylinder(hilt_text,[0,0,0],inner_diameter/2+0.20*outer_diameter,thickness,face="top");
rotate ([0,0,270]) writecylinder(hilt_text,[0,0,0],inner_diameter/2+0.20*outer_diameter,thickness,face="top");
}
translate([0,0,thickness/2]) rotate_extrude () translate([outer_diameter/2-thickness/2,0,0]) circle(r=thickness/2);
}

```


[User]
Okay, I need some help designing a better e-cig holster, and I want it to be parametric so I can easily adjust it for different e-cigs in the future. Right now, I have a simple design, but it could be improved.

Here's what I have in mind:

**Core Functionality:**

*   **Holster/Sheath:** The main part needs to securely hold my e-cig, which is longer than a standard e-go, specifically accommodating an e-go twist battery. It needs to cover the battery length and a bit of the vaporizer, leaving the top accessible.
*   **Belt Clip:** A clip should attach to the holster for easy belt carrying. It should be robust and not break easily.

**Current Design & Issues:**

I've already made a basic version using OpenSCAD (attached: `ecig_sheath.scad`) but I need to improve on it. The main things I'm concerned about are:

*   **E-cig Retention:** While the e-cig hasn't fallen out, I think the top of the holster needs a better way to hold the e-cig securely. I am considering adding something like Sugru at the opening of the holster to help improve retention. Maybe a design solution integrated into the model instead of a post process material would be preferable.
*   **Clip Strength:** The clip is quite simple; I wonder if there’s a way to strengthen it or make it more flexible using OpenSCAD.
*   **Assembly:** Currently, I'm using a simple "plate" arrangement where the clip and holster are printed together.  I'd like to explore the possibility of having them as separate components so that the clip could rotate or be re-oriented on the holster.
*   **Overall Parametric Design:** I want to make it easy to modify the internal dimensions (length and diameter), clip length, and other aspects of the design. Currently the design is slightly parametric, but I would like to improve that, adding more parameters to allow for broader adjustment and improve the overall ease of customization.

**Specific Parameters (that should be easy to modify):**

*   `inner_length`: Length of the holster's interior, designed to fit the length of the battery and some of the vape.
*   `inner_dia`: Inner diameter of the holster, based on the diameter of the battery plus a tolerance for fit.
*   `clip_length`: The length of the belt clip.
*   `clip_width`: The width of the belt clip.
*   `clip_thickness`: The thickness of the belt clip
*   `holster_wall_thickness`: The thickness of the walls of the holster
*   `clip_offset_x`: How far the clip should be positioned along the x-axis in relation to the holster
*   `clip_offset_y`: How far the clip should be positioned along the y-axis in relation to the holster
*   `clip_offset_z`: How far the clip should be positioned along the z-axis in relation to the holster
*   `clip_rotation_x`: How much the clip should be rotated about the x-axis
*   `clip_rotation_y`: How much the clip should be rotated about the y-axis
*   `clip_rotation_z`: How much the clip should be rotated about the z-axis
*   `top_lip_height`: The height of a retaining lip at the top of the holster to improve e-cig retention.
*   `top_lip_width`: The width of a retaining lip at the top of the holster to improve e-cig retention.
*  `top_lip_angle`: The angle of a retaining lip at the top of the holster to improve e-cig retention.

**OpenSCAD Needs:**

I would like the design to be clean and easy to understand. I'd prefer not to use any external libraries or modules if they can be avoided. I am familiar with basic OpenSCAD operations and functions such as `cube()`, `cylinder()`, `translate()`, `rotate()`, `difference()`, `union()`, and `hull()`.

**Desired Output:**

I'm looking for a robust and parametric OpenSCAD file that:

1.  Creates a hollow cylindrical holster with a customizable internal length and diameter.
2.  Implements a way to retain the e-cig more securely at the top of the holster (i.e. maybe a small lip).
3.  Creates a strong and adjustable belt clip.
4.  Offers the option to print the holster and clip as a single piece, or separately for more customization.
5. Is well commented, readable, and as simple as possible.
6. Contains all of the parameters that have been defined above.

Could you help me generate a better OpenSCAD file for this project?

[Assistant]
ecig_sheath.scad:
```
//Length of the clip
clip_length = 50;
//inner length of sheath, length of accu from knob downwards
inner_length = 90;
//inner Diameter, Diameter of accu + some tolerance
inner_dia = 15;
// which part should be rendered?
part = "plate"; //[assy:Assembly,sheath:Sheath only,clip:Clip only,plate:Both parts for printing]

module print_part()
{
if(part=="assy"){
assembly();
}else if(part=="sheath"){
sheath();
}else if(part=="clip"){
clip();
}else if(part=="plate"){
plate();
}
}
module sheath()
{
difference()
{
hull()
{
translate([0,0,-inner_length/2+37.5])
cylinder(r=inner_dia/2+1.5,h=inner_length+16,center=true);
translate([0,inner_dia/2-3,38])
cube([inner_dia+3,10,15],center=true);
}
translate([0,0,-inner_length/2+46.5])
cylinder(r=inner_dia/2,h=inner_length+31,center=true);

translate([4,inner_dia/2,38])
rotate([90,0,0])
cylinder(r=2,h=7,center=true,$fn=16);

translate([4,inner_dia/2-1,38])
rotate([90,0,0])
cylinder(r=3.5,h=4,center=true,$fn=6);

translate([-4,inner_dia/2,38])
rotate([90,0,0])
cylinder(r=2,h=7,center=true,$fn=16);

translate([-4,inner_dia/2-1,38])
rotate([90,0,0])
cylinder(r=3.5,h=4,center=true,$fn=6);

translate([0,0,51])
rotate([37,0,0])
cube([inner_dia*2,inner_dia*3,22],center=true);
}
}

module clip()
{
difference()
{
union()
{
cube([18,15,4],center=false);
translate([0,0,-3])
cube([18,clip_length,3],center=false);
translate([0,clip_length-2,0])
rotate([0,90,0])
cylinder(r=2,h=18,$fn=16);
}
translate([5,7.5,0])
cylinder(r=2,h=15,center=true,$fn=16);
translate([13,7.5,0])
cylinder(r=2,h=15,center=true,$fn=16);

translate([5,7.5,-2.5])
cylinder(r=3,h=2,center=true,$fn=16);
translate([13,7.5,-2.5])
cylinder(r=3,h=2,center=true,$fn=16);
}
}
module plate()
{
sheath();
translate([20,-10,-inner_length+32.5])
clip();
}
module assembly()
{
sheath();
translate([9,17,45.5])
rotate([90,180,0])
clip();
}

print_part();

```


[User]
Okay, I've been playing around with OpenSCAD and I'm trying to make a customizable sword hilt. I based my work off of a thingiverse project by UechiMike (thing:88772), and I've got a decent start, but I want to make it even more configurable and I'm having trouble getting it all set up.

Here's what I'm going for:

**Core Shape:**
*   The hilt is cylindrical.
*   It should be hollow inside, forming a ring.
*   It needs to have a thickness that's adjustable.
*   It needs adjustable outer and inner diameters.
*   It needs a rounded edge on the top and bottom.

**Text Engraving:**
*   I want to engrave text on the top surface of the hilt.
*   I need three lines of text, each configurable.
*   The text should be centered on the top face of the cylinder.
*   The first two lines of text should be roughly centered on the radius of the cylinder, with a specified vertical spacing offset, and should be normally readable.
*   The third line of text should be on the same top face, but be *mirrored* or flipped so it is readable from the inside of the hilt.
*   The spacing between letters in the third line should be adjustable
*   I need to be able to adjust the height of the text.

**Specific Parameters I want to be configurable:**
*   `hilt_textL1`: Text for the first line.
*   `hilt_textL2`: Text for the second line.
*   `hilt_textL3`: Text for the third (mirrored) line.
*   `thickness`: The thickness of the hilt ring.
*   `outer_diameter`: The outer diameter of the hilt.
*   `inner_diameter`: The inner diameter of the hilt.
*   `text_height`: The height of the text.
*   `text_v_spacing1_2`: Vertical space between lines 1 and 2.
*  `text_v_spacing3`: vertical position of text line 3.
*   `letter_spacing`: spacing between characters in text line 3.

I've been using the `Write.scad` library for the text, and I've included an example of my current work below (though I've edited it a bit to clean it up for you).

```openscad
// Hilt Text line1
hilt_textL1 = "Rutgers Kendo Club";
// Hilt Text line2
hilt_textL2 = "Rank";

// Hilt Text line3 at bottom
hilt_textL3 = "KendoKa Name";

// Hilt Thickness
thickness = 7.5;
// Hilt Outer Diameter
outer_diameter = 78;
// Hilt Inner Diameter
inner_diameter = 32;

//use <Write.scad>
use <write/Write.scad>

union () {
difference () {
cylinder(r=outer_diameter/2-thickness/2,h=thickness);
translate([0,0,-0.25]) cylinder(r=inner_diameter/2,h=thickness+1);
writecylinder(hilt_textL1,[0,0,0],(inner_diameter/4+outer_diameter/4)+6,thickness,face="top");

 writecylinder(hilt_textL2,[0,0,0],(inner_diameter/4+outer_diameter/4)-1,thickness,face="top");

writecylinder(hilt_textL3,[0,0,0],(inner_diameter/4+outer_diameter/4)+3,thickness,face="top",ccw=true,h=6,,space=1);

}
translate([0,0,thickness/2]) rotate_extrude () translate([outer_diameter/2-thickness/2,0,0]) circle(r=thickness/2);
}
```

Could you generate a parametric OpenSCAD file that allows me to control all these parameters? I'd really appreciate it!

[Assistant]
Customizer_sword_hilt.scad:
```

// Hilt Text line1
hilt_textL1 = "Rutgers Kendo Club";
// Hilt Text line2
hilt_textL2 = "Rank";

// Hilt Text line3 at bottom
hilt_textL3 = "KendoKa Name";

// Hilt Thickness
thickness = 7.5;
// Hilt Outer Diameter
outer_diameter = 78;
// Hilt Inner Diameter
inner_diameter = 32;

//use <Write.scad>
use <write/Write.scad>

union () {
difference () {
cylinder(r=outer_diameter/2-thickness/2,h=thickness);
translate([0,0,-0.25]) cylinder(r=inner_diameter/2,h=thickness+1);
writecylinder(hilt_textL1,[0,0,0],(inner_diameter/4+outer_diameter/4)+6,thickness,face="top");

 writecylinder(hilt_textL2,[0,0,0],(inner_diameter/4+outer_diameter/4)-1,thickness,face="top");

writecylinder(hilt_textL3,[0,0,0],(inner_diameter/4+outer_diameter/4)+3,thickness,face="top",ccw=true,h=6,,space=1);

}
translate([0,0,thickness/2]) rotate_extrude () translate([outer_diameter/2-thickness/2,0,0]) circle(r=thickness/2);
}

```


[User]
Okay, I'd like to design a custom handle, kind of like the one described in that thingiverse post, but I want it to be more flexible and easier to customize.

Basically, I need a cylindrical handle with text embedded into its surface. The handle will have a base that attaches to something, kind of like a tap. Here are the specifics of what I want to be able to control:

**Handle Body:**

*   **Text:** I need to be able to specify the text that's embedded in the handle.
*   **Text Depth:** I need to be able to control how deep the text is carved into the handle.
*   **Handle Height:** The overall height of the main part of the handle (where the text is).
*   **Handle Diameter:** The diameter of the main part of the handle.
*   **Smoothing:** I want the handle to have a rounded, smooth shape, not just a straight cylinder. I'd prefer if the smoothing was done using `hull` or `minkowski` instead of `linear_extrude` on smaller diameter, if possible.
*   **Base Diameter:** The diameter of the cylindrical base that attaches to the object (like a tap).
*   **Base Inner Diameter:** The diameter of the hole in the base for the tap.
*   **Base Height:** The height of the base cylinder.
*   **Base Transition:** There should be a smooth transition where the main handle connects to the base, maybe with a curved or chamfered edge.

**Text Placement:**

*   **Text Rotation:** I need to be able to rotate the text around the circumference of the handle. It should default to horizontal.
*   **Text Center:** I need to control whether the text is centered on the handle's height or if I can shift it up or down.

**Overall Requirements:**

*   **Parametric Design:** Everything must be parametric, so I can easily change dimensions and the design updates automatically.
*   **Printable:** The design should be printable, meaning it should use smooth transitions instead of abrupt edges.
*   **OpenSCAD:**  The design needs to be in OpenSCAD.
*   **Write Library:** I want to use the `write` library (or similar) for creating the text.

The example I showed used the `write/Write.scad` library. I'd like to use that exact library or something as close to that one as possible.

Can you generate an OpenSCAD file that meets these requirements? I'm hoping for something that's very easy to use and customize by just changing some variable values at the top of the file.

[Assistant]
handle.scad:
```
use <write/Write.scad>
///////////////////
// Will Wheaton said 'Make it so' and the internet obliged.
///////////////////////

///////////////////////
// Configuration
///////////////////////

// The words you want embeded into the handle
words = "Orange Julius"; // "Wil O Licious"
// The how deep the words should go
word_height = 10;

// How tall the grip should be where the words are placed
handle_height = 150;
// How wide the grip should be.
handle_diameter = 25;

// The diameter of the tap part you're attaching to.
handle_id = 10;
// How tall do you want the attachment to be.
bottom_pillar_height = 30;

//////////////////////////
//Variables
//////////////////////////

// How fine do you want the circles/smoothing to be. (larger takes longer to render.
fn = 100;
inner_od = handle_id + 10;

main();
////////////////////////////////////////////////////////

module main()
{
	difference()
	{
	color("grey")
	handle();
	color("black")
	writing();
	}

}

module handle()
{
	union()
	{
	hull()
	{
	translate([0,0,handle_height + bottom_pillar_height])
	sphere(r=20, $fn=fn);

	translate([0,0.5,0])
	writing();
	translate([0,0,bottom_pillar_height])
	linear_extrude(height=20)
	{
	circle(handle_diameter, $fn=fn);
	}
	}

	hull()
	{
	translate([0,0,bottom_pillar_height])
	linear_extrude(height=0.1)
	{
	circle(handle_diameter, $fn=fn);
	}
	translate([0,0,bottom_pillar_height/2])
	linear_extrude(height=0.1)
	{
	circle(inner_od, $fn=fn);
	}
	}

	linear_extrude(height=bottom_pillar_height)
	{
	difference()
	{
		circle(inner_od, $fn=fn);
		circle(handle_id, $fn=fn);
	}
	}
	}
}

module writing()
{

	total_height = bottom_pillar_height + handle_height;
	translate([0,0.5,0])
	writecylinder(words,[0,0,total_height/2 + bottom_pillar_height], handle_diameter, bottom_pillar_height, h=10, t=word_height, rotate=90,center=true);
	//writecylinder(default,[0,0,bottom_pillar_height/2], inner_od, bottom_pillar_height,rotate=45,center=true);

}

module testing()
{
translate([0,0,0])
%cylinder(r=20,h=40,center=true);
color([1,0,0])
writecylinder("rotate=90",[0,0,0],20,40,center=true,down=0,rotate=90);
writecylinder("rotate = 30,east = 90",[0,0,0],20,40,center=true,down=0,rotate=30,east=90);
writecylinder("ccw = true",[0,0,0],20,40,center=true,down=0,face="top",ccw=true);
writecylinder("middle = 8",[0,0,0],20,40,h=3,center=true,down=0,face="top",middle=8);
writecylinder("face = top",[0,0,0],20,40,center=true,down=0,face="top");
writecylinder("east=90",[0,0,0],20,40,h=3,center=true,down=0,face="top",east=90);
writecylinder("west=90",[0,0,0],20,40,h=3,center=true,down=0,face="top",ccw=true,west=90);
writecylinder("face = bottom",[0,0,0],20,40,center=true,down=0,face="bottom");

}
```


[User]
Okay, I need a custom dial indicator mount designed for my 3D printer. I'm using a MakerBot Stepstruder MK7, and I want to be able to attach a dial indicator to it for bed leveling and other precise measurements.

Here are the specific dimensions and requirements I have in mind:

*   **Dial Indicator Sensor Arm Diameter:** The part of the dial indicator that touches the surface is 6.5 mm in diameter.
*   **Dial Indicator Mounting Shaft Diameter:** The shaft that inserts into the mount is 9.9 mm in diameter.
*   **Mounting Shaft Length:** The length of the dial indicator's mounting shaft that needs to be accommodated by the mount is 18 mm.
*   **Clamping Bolt Diameter:** I'm planning to use a bolt with a diameter of 3.65 mm for the clamp.
*   **Mounting Block Width:** The main block that attaches to the Stepstruder should be 25 mm wide.
*   **Clamp Offset:** I want the clamp to be offset by 3 mm from the center of the mounting block.

The mount needs to:
    * Have two holes to line up with the NEMA 17 motor mount on the stepstruder, which I've already figured out are 31.01 mm apart.
    * Have clearance holes for 3.6mm M3 bolts to attach to the Stepstruder.

I'd like the design to be parametric, so I can easily adjust these dimensions if needed in the future. I've looked at a previous version which used a `3d_triangle.scad` library file, so please make sure to include that. It seemed useful for creating some of the clamp features.

Could you generate the OpenSCAD code for this mount? I would like to use the `3d_triangle.scad` library from MCAD. Please provide the OpenSCAD code with all the necessary parameters as customizable variables at the beginning.

[Assistant]
dial_indicator_mount_v3.scad:
```
//design and code by emanresu (http://www.thingiverse.com/Emanresu)
//dial indicator mount for a makerbot step-struder mk7

use <./MCAD/3d_triangle.scad>

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

//CUSTOMIZER VARIABLES

//diameter of the sensor arm of the dial indicator (mm)
indicator_sensor_diameter=6.5;
//diameter of the mounting shaft of the dial indicator (mm)
indicator_mount_diameter = 9.9;
//length of the mounting shaft of the dial indicator (mm)
mount_depth = 18;
//diameter of clamping bolt (mm)
bolt_diameter=3.65;
//width of mounting block (mm)
block_width = 25;
//offset of clamp along the center of the mounting block (mm)
offset = 3;

/* [Hidden] */

//sets openSCAD resolution
$fa=1;
$fs=0.5;

//Clamp parameters
thick = 1.6;//thickness of clamp, bottom of clamp
gap = 1;//gap between tightening tabs on clamp

indicator_sensor_radius=indicator_sensor_diameter/2; //radius of the dial indicator's sensor shaft
indicator_mount_radius = indicator_mount_diameter/2;//radius of dial indicator's mounting shaft

//mounting block dimentions
//y dimention controled by block_with above
bm_x = 40; //width of stepstruder bar mount
bm_z = 9; //thickness of stepstruder bar mount

//mounting block holes (to line up with the stepstruder bar mount)
bm_hole_offset = 31.01/2; //how far the holes are from the center of the mounting block NEMA 17
bm_hole_diameter = 3.6;  //M3 bolt clearance hole diameter
bm_hole_radius = bm_hole_diameter/2;  //M3 bolt clearance hole radius

bolt_radius=bolt_diameter/2;//radius of tightening bolt

  /////////////
 // Modules //
/////////////

module DI_clamp() {
	//generates the dial indicator clamp, puts everything together
	union() {
		translate([0, offset, thick]) {
			clamp_cyl();
		}
		translate([0, 0, bm_z/2]) {
			difference() {
				mounting_block();
				translate([0, offset, thick]) {
					cylinder(r=indicator_mount_radius, h=bm_z, center=true);
				}
				translate([0, offset, 0]) {
					cylinder(r=indicator_sensor_radius, h=bm_z+1, center=true);
				}
			}
		}
	}
}

module mounting_block() {
	// generates the mounting block with holes to mount to a mk7 stepstruder
	difference() {
		cube(size=[bm_x, block_width, bm_z], center=true);
		translate([bm_hole_offset, 0, 0]) {
			rotate([90, 0, 0]) {
				cylinder(r=bm_hole_radius, h=block_width+1, center=true);
			}
		}
		translate([-bm_hole_offset, 0, 0]) {
			rotate([90, 0, 0]) {
				cylinder(r=bm_hole_radius, h=block_width+1, center=true);
			}
		}
	}
}

module clamp_cyl() {
	//makes a cylindric clamp with screw tabs to tighten it
	//radius determines the internal radius
	//depth determines the height
	//thick determines how thick it is, difference between external and internal radius
	//gap determines how large the gap in the clamp is
	union() {
		difference() {
			cylinder(r=indicator_mount_radius+thick, h=mount_depth, center=false);
			translate([0, 0, -0.5]) {
				cylinder(r=indicator_mount_radius, h=mount_depth+1, center=false);
			}
			translate([-gap/2, 0, -0.5]) {
				cube(size=[gap, indicator_mount_radius+thick, mount_depth+1], center=false);
			}
		}
		translate([gap/2, indicator_mount_radius+thick/2, mount_depth-(2*bolt_radius+2*thick)]) {
			screw_tab();
		}

		translate([-gap/2-thick, indicator_mount_radius+thick/2, mount_depth-(2*bolt_radius+2*thick)]) {
			screw_tab();
		}
	}
}

module screw_tab() {
	//makes the screw tabs on the clamp
	//square tabs with triangular bottoms
	//rad determines the radius of the screw holes
	//thick determines how thick the tabs are
	difference() {
		union() {
			cube(size=[thick, 2*bolt_radius+2*thick, 2*bolt_radius+2*thick], center=false);
			rotate([0, 90, 0]) {
				3dtri_draw([0,0,0],[0,2*bolt_radius+2*thick,0],[2*bolt_radius+2*thick,0,0],thick);
			}
		}
		translate([-0.5, (2*bolt_radius+2*thick)/2, (2*bolt_radius+2*thick)/2]) {
			rotate([0, 90, 0]) {
				cylinder(r=bolt_radius, h=thick+1, center=false);
			}
		}
	}
}

  //////////////////
 // Control Code //
//////////////////

DI_clamp();

```


[User]
Okay, I'd like to create a customizable maze generator in OpenSCAD. I've already got some basic code that does this, but it's quite rigid and I'd like something more flexible and parametric.

Here’s how my current code works (I'll attach it below, though it's not really meant to be an elegant solution): It uses a string to define the maze, where each two-digit number represents the walls of a tile (1=left, 2=top, 4=right, 8=bottom). "br" is used to mark the end of a row. So, "03,06,br,09,12,br" makes a simple 2x2 maze. The code then parses this string and creates the maze tiles and walls.

Here's what I'd like the new, parametric version to do:

1.  **Maze Dimensions:** I want to specify the maze dimensions (width and height) using variables, rather than calculating them from the input string like the current solution does. I’d like to be able to specify these in number of tiles.
2. **Tile Specification:** Instead of using a string to directly encode the walls, I'd like to provide an array (or similar data structure) that represents the wall configuration for each tile. It would be nice if this data structure could be easily generated from a string like I'm using now, but be flexible enough that I could more easily specify the maze programmatically.
3.  **Wall Thickness and Height:** These should be variables.
4.  **Tile Width:** This should also be a variable, allowing easy scaling of the entire maze.
5.  **Base Plate Height:** I'd like a variable to set the height of a base plate upon which the maze walls are placed.
6. **Wall Types:** It would be good to have the ability to specify different types of walls beyond just "present" or "absent". Ideally, I could define something that would be a thicker wall, or maybe even a wall that is decorative, that could be used in place of the simple wall. It would be good if I could reference it by an integer in the same array as the simple walls (so that I could say, "use a thick wall" in the same way I'm saying "include a simple wall").
7. **Output:** It would be good if the solution would provide the ability to generate the whole maze, and to also just generate a single specified tile.
8. **Modularity:** I'd like it to be modular and easy to extend. I also want it to be clean and use standard OpenSCAD conventions.

I’m envisioning something that's more akin to a library or module that I can easily integrate into other designs, rather than a single, fixed script.

I'm not tied to the exact method I used for wall specification in the attached code (though I would want a path to import this specification style without major changes). I would prefer an approach that allows me to generate maze configurations algorithmically in the future without having to create a special string first. Also I would like to avoid an approach that would require me to write functions for every combination.

I also would like to use existing libraries as much as possible, especially if this could make the code more modular or simple. I don’t currently use any OpenSCAD libraries, so would be open to any recommendations you might have.

Here is the code I'm using now:

```
tile_width = 5;
wall = 1;
wall_height = 5;
plate_height = 2;

mazestring="03,06,02,06,00,02,02,02,02,06,br,05,02,12,04,04,06,02,10,10,12,br,01,09,04,08,08,12,08,08,08,04,br,01,12,04,00,04,00,04,00,08,12,br,01,03,12,12,04,04,08,08,01,04,br,01,09,08,04,04,08,08,08,12,04,br,09,00,12,08,04,08,00,12,00,04,br,01,08,01,08,12,00,00,01,12,12,br,01,08,08,09,00,12,00,09,08,04,br,09,08,08,08,08,09,08,01,08,12,br";

width=search("b",mazestring,1)[0]/3;
height=len(search("b",mazestring,99999)[0]);

maze(mazestring,width,height,tile_width,wall,wall_height,plate_height);

module maze(ms,w,h,t,wall,wallh,plateh){

	cube([h*t,w*t,plateh],false);
	union()
	for (j=[0:h-1]){
		for (i=[0:w-1]){
			translate([j*t,i*t,0]){
				translate([0,0,plateh]){
					wallcalc(str(ms[i*3+j*(w+1)*3], ms[i*3+j*(w+1)*3+1]), t, wall, wallh);
				}
			}
		}
	}
}

module wallcalc(i, t, wt,wh){
echo(i);
		if(i == "15"){
			wall(1,1,1,1, i, t, wt,wh);
		}else if(i == "14"){
			wall(0,1,1,1, i, t, wt,wh);
		}else if(i == "13"){
			wall(1,0,1,1, i, t, wt,wh);
		}else if(i == "12"){
			wall(0,0,1,1, i, t, wt,wh);
		}else if(i == "11"){
			wall(1,1,0,1, i, t, wt,wh);
		}else if(i == "10"){
			wall(0,1,0,1, i, t, wt,wh);
		}else if(i == "09"){
			wall(1,0,0,1, i, t, wt,wh);
		}else if(i == "08"){
			wall(0,0,0,1, i, t, wt,wh);
		}else if(i == "07"){
			wall(1,1,1,0, i, t, wt,wh);
		}else if(i == "06"){
			wall(0,1,1,0, i, t, wt,wh);
		}else if(i == "05"){
			wall(1,0,1,0, i, t, wt,wh);
		}else if(i == "04"){
			wall(0,0,1,0, i, t, wt,wh);
		}else if(i == "03"){
			wall(1,1,0,0, i, t, wt,wh);
		}else if(i == "02"){
			wall(0,1,0,0, i, t, wt,wh);
		}else if(i == "01"){
			wall(1,0,0,0, i, t, wt,wh);
		}else{
			//nothing
		}
}

module wall(a,b,c,d, i, t, wt,wh){
		if(a == 1)
			translate([0,-0.001,0])
				cube([t,wt,wh],false);
		if(b == 1)
			translate([-0.001,0,0])
				cube([wt,t,wh],false);
		if(c == 1)
			translate([0,(t-wt)+0.001,0])
				cube([t,wt,wh],false);
		if(d == 1)
			translate([(t-wt)+0.001,0,0])
				cube([wt,t,wh],false);
}
```

[Assistant]
maze2.scad:
```
tile_width = 5;
wall = 1;
wall_height = 5;
plate_height = 2;

mazestring="03,06,02,06,00,02,02,02,02,06,br,05,02,12,04,04,06,02,10,10,12,br,01,09,04,08,08,12,08,08,08,04,br,01,12,04,00,04,00,04,00,08,12,br,01,03,12,12,04,04,08,08,01,04,br,01,09,08,04,04,08,08,08,12,04,br,09,00,12,08,04,08,00,12,00,04,br,01,08,01,08,12,00,00,01,12,12,br,01,08,08,09,00,12,00,09,08,04,br,09,08,08,08,08,09,08,01,08,12,br";

width=search("b",mazestring,1)[0]/3;
height=len(search("b",mazestring,99999)[0]);

maze(mazestring,width,height,tile_width,wall,wall_height,plate_height);

module maze(ms,w,h,t,wall,wallh,plateh){

	cube([h*t,w*t,plateh],false);
	union()
	for (j=[0:h-1]){
		for (i=[0:w-1]){
			translate([j*t,i*t,0]){
				translate([0,0,plateh]){
					wallcalc(str(ms[i*3+j*(w+1)*3], ms[i*3+j*(w+1)*3+1]), t, wall, wallh);
				}
			}
		}
	}
}

module wallcalc(i, t, wt,wh){
echo(i);
		if(i == "15"){
			wall(1,1,1,1, i, t, wt,wh);
		}else if(i == "14"){
			wall(0,1,1,1, i, t, wt,wh);
		}else if(i == "13"){
			wall(1,0,1,1, i, t, wt,wh);
		}else if(i == "12"){
			wall(0,0,1,1, i, t, wt,wh);
		}else if(i == "11"){
			wall(1,1,0,1, i, t, wt,wh);
		}else if(i == "10"){
			wall(0,1,0,1, i, t, wt,wh);
		}else if(i == "09"){
			wall(1,0,0,1, i, t, wt,wh);
		}else if(i == "08"){
			wall(0,0,0,1, i, t, wt,wh);
		}else if(i == "07"){
			wall(1,1,1,0, i, t, wt,wh);
		}else if(i == "06"){
			wall(0,1,1,0, i, t, wt,wh);
		}else if(i == "05"){
			wall(1,0,1,0, i, t, wt,wh);
		}else if(i == "04"){
			wall(0,0,1,0, i, t, wt,wh);
		}else if(i == "03"){
			wall(1,1,0,0, i, t, wt,wh);
		}else if(i == "02"){
			wall(0,1,0,0, i, t, wt,wh);
		}else if(i == "01"){
			wall(1,0,0,0, i, t, wt,wh);
		}else{
			//nothing
		}
}

module wall(a,b,c,d, i, t, wt,wh){
		if(a == 1)
			translate([0,-0.001,0])
				cube([t,wt,wh],false);
		if(b == 1)
			translate([-0.001,0,0])
				cube([wt,t,wh],false);
		if(c == 1)
			translate([0,(t-wt)+0.001,0])
				cube([t,wt,wh],false);
		if(d == 1)
			translate([(t-wt)+0.001,0,0])
				cube([wt,t,wh],false);
}
```


[User]
Okay, I've been working on this filament odometer design, and I've got a basic OpenSCAD file that kinda works, but it's messy and hard to tweak. I'd really like a parametric version that's more robust and easier to customize.

Here’s what I’m looking for:

**Overall Goal:** A parametric filament odometer that displays a number (like a car odometer) based on the rotation of a feed wheel driven by the filament. The design should be 3D printable and use gears to transfer the rotation to the number wheels.

**Key Components & Parameters:**

*   **Numbered Wheels:**
    *   `WheelDia`: Diameter of the numbered wheels.
    *   `Over1`: Overlap of the wheel parts.
    *   `Format`: Number of faces/sides on the numbered wheel (should be 10 for digits 0-9, but I’d like to keep the option open). This will define how many numbers are on the wheel.
    *   `WheelWidth`: Width of the main part of the numbered wheel (calculated from `WheelDia` and `Format`).
    *   Text is displayed on the wheels using the included `writecube()` function from `write/Write.scad`, and should be on the "face" of the wheel.
*   **Shaft:**
    *   `Shaft`: Diameter of the shafts.
*   **Digit System:**
    *   `Digits`: Total number of digits in the odometer.
    *   `Seperation`: Spacing between adjacent numbered wheels.
    *   `Spacing`: Overall spacing between digits, including gaps, wheel width, etc., which will calculate the positions of the wheels.
*   **Gears:**
    *   `SideWidth`: Width of the side gears.
    *   `DriveWidth`: Width of the drive gears.
    *   Gears should be simple, non-involute gears with a number of teeth appropriate for the wheel they are driving or being driven by.
*   **Body/Base:**
    *   `Clearance1`: Clearance between the body and moving parts of a wheel/gear.
    *   `Clearance2`: Additional clearance on the body sides (for easy printing).
    *   `BodyLength`: Overall length of the body, automatically calculated.
    *   `BodyWidth`: Overall width of the body, automatically calculated.
*  **Filament Drive System**
    *   `Units`: Measurement units for the odometer (cm/in, specified by units per rotation of the drive wheel).
    *   `TeethFeed`: Number of teeth on the feed wheel (calculated).
    *   `FeedDia`: Diameter of the feed wheel (calculated).
    *   `Filament`: Diameter of filament being tracked.
    *   `Tension`: Tension of filament drive system.
    *   `FilamentSpacing`: Space between rollers that are grabbing the filament
    * `ShaftSpacing`: Distance from the number wheel to the filament drive system.

*   **Resolution Variables:**
    *   `res1`, `res2`, `res3`: Resolution variables used for the different cylindrical primitives.

**Specific Requirements:**

1.  **Parametric Design:** Everything should be driven by variables, so I can easily change the wheel size, number of digits, etc.
2.  **Modular Design:** I'd like the wheel, gear, and base components to be separate modules for easier modification and understanding.
3.  **Clearance:** Proper clearances need to be built in for 3D printing. The variable `Clearance1` defines the gap between the number wheels and the body, as well as between the gears and other components.
4.  **Gear System:**
    *   Each number wheel should be driven by a gear that's located to the side of the wheel.
    * The gear should be on the same axis of rotation as the digit wheel.
    *   The filament drive system should have a drive wheel, which meshes with a gear on each digit wheel.
    * Each digit wheel should drive the next, with each digit advanced by 1/10 of a rotation of the previous digit.
5.  **Assembly View:** It would be great to have a separate module that shows the entire assembly, to see how it all fits together.
6.  **Parts Layout View:** I also need a separate module that lays all the parts flat, ready for printing. This includes the body and all number wheels, gears, etc.
7.  **Use Existing Library:** The text should be printed on each number wheel using the included `writecube()` from the `write/Write.scad` library.
8.  **Avoid External Dependencies:** Apart from that library, please do not use any other external dependencies or libraries (like BOSL, MCAD, etc). Just use standard OpenSCAD primitives.
9.  **Calculated Variables:** There are a few variables that are calculated, such as `WheelWidth` and `BodyLength`. Please maintain these automatic calculations.
10.  **Comments:** Include comments in the code to explain what each part does, especially when it comes to the calculations.

**Existing Code Notes:**
 I have a working file but its messy so use this only for reference of how the parts are all put together and calculate their positions.

Could you help me generate a parametric OpenSCAD file that meets these requirements? Let me know if you need more information.

[Assistant]
Odometer.scad:
```
include <write/Write.scad>
//Select what to print
PrintMode=0; //[1:Display Assembled,0:Single Print Bed]
//Select Wheel Diameter
WheelDia=35;
//Select Wheel Overlap
Over1=1.5;
//Shaft Diameter
Shaft=2.1;
//Number of faces on Wheel
Format=10;
//Default cyliner resolutions
res1=25;
res2=50;
res3=100;
//Pi constant
Pi=3.141592653589793238462643382795;
//Calculate Wheel Width
WheelWidth=(Pi*WheelDia)/Format;
//Total Number of Digits
Digits=3;
//Digit Seperation
Seperation=5;
//Clearance on moving part
Clearance1=1.5;
//Digit Spacing
Spacing=Clearance1*4+WheelWidth+Over1*4+Seperation;
//Units of measure
Units=10; // [10:cm,25.4:in]
//Width of Side Gears
SideWidth=Over1*2;
//Width of Drive Gears
DriveWidth=Spacing-(WheelWidth+Over1*2)-Clearance1;
//Spacing between gears and wheels
ShaftSpacing=WheelDia-(WheelDia/10);
//Excess clearance on body sides
Clearance2=4;
//Length of Body
BodyLength=(Clearance1*4+WheelWidth+Over1*4+Seperation)*Digits+Spacing;
//number of teeth on Feed Wheel
TeethFeed=round(((Pi*WheelDia)/Units)-.5);
//Feed Wheel Dia
FeedDia=(Units*TeethFeed)/Pi;
//Thickness of filament of rope
Filament=1.75;
//tension on filament (How close rollers are together)
Tension=0.25;
//Calculation of filament spacing
FilamentSpacing=Filament-Tension;
//Width of Body
BodyWidth=WheelDia+ShaftSpacing+Clearance2*2;
//Width of drive wheel system

module NumberedWheels(){
	difference(){
		union(){
			cylinder(r=WheelDia/2,h=Over1,$fn=res3);
			translate([0,0,WheelWidth+Over1]) cylinder(r=WheelDia/2,h=Over1,$fn=res3);
			translate([0,0,Over1]) cylinder(r=WheelDia/2,h=WheelWidth,$fn=Format);
		}
		translate([0,0,WheelWidth/2]) cube([WheelDia/3,WheelDia/3,WheelWidth*2],center=true);
		rotate([0,0,72])if (Format==10){
			rotate([0,0,0]) rotate([0,90,0]) translate([-WheelWidth/2-Over1,-WheelDia/2+.5,0]) writecube("0",h=WheelWidth/2);
			rotate([0,0,36*1]) rotate([0,90,0]) translate([-WheelWidth/2-Over1,-WheelDia/2+.5,0]) writecube("1",[0,0,0],[0,0,0],h=WheelWidth/2);
			rotate([0,0,36*2]) rotate([0,90,0]) translate([-WheelWidth/2-Over1,-WheelDia/2+.5,0]) writecube("2",[0,0,0],[0,0,0],h=WheelWidth/2);
			rotate([0,0,36*3]) rotate([0,90,0]) translate([-WheelWidth/2-Over1,-WheelDia/2+.5,0]) writecube("3",[0,0,0],[0,0,0],h=WheelWidth/2);
			rotate([0,0,36*4]) rotate([0,90,0]) translate([-WheelWidth/2-Over1,-WheelDia/2+.5,0]) writecube("4",[0,0,0],[0,0,0],h=WheelWidth/2);
			rotate([0,0,36*5]) rotate([0,90,0]) translate([-WheelWidth/2-Over1,-WheelDia/2+.5,0]) writecube("5",[0,0,0],[0,0,0],h=WheelWidth/2);
			rotate([0,0,36*6]) rotate([0,90,0]) translate([-WheelWidth/2-Over1,-WheelDia/2+.5,0]) writecube("6",[0,0,0],[0,0,0],h=WheelWidth/2);
			rotate([0,0,36*7]) rotate([0,90,0]) translate([-WheelWidth/2-Over1,-WheelDia/2+.5,0]) writecube("7",[0,0,0],[0,0,0],h=WheelWidth/2);
			rotate([0,0,36*8]) rotate([0,90,0]) translate([-WheelWidth/2-Over1,-WheelDia/2+.5,0]) writecube("8",[0,0,0],[0,0,0],h=WheelWidth/2);
			rotate([0,0,36*9]) rotate([0,90,0]) translate([-WheelWidth/2-Over1,-WheelDia/2+.5,0]) writecube("9",[0,0,0],[0,0,0],h=WheelWidth/2);
		}
	}
}
module SideGear(n){
	difference(){
		union(){
			rotate([0,0,108]) for (i=[1:n]){
				rotate([0,0,(360/n)*(i)]) translate([WheelDia/2-WheelDia/6,0,0]) intersection(){
					//cylinder(r=WheelWidth/2,h=2,$fn=res2);
					rotate([0,0,15]) cube([WheelDia/3,WheelDia/6,SideWidth],center=true);
					rotate([0,0,-15]) cube([WheelDia/3,WheelDia/6,SideWidth],center=true);
				}
			}
			translate([0,0,-Over1]) cylinder(r=WheelDia/3,h=SideWidth,$fn=res1);
			translate([0,0,-Over1*2])cube([WheelDia/3-.1,WheelDia/3-.1,Over1*3],center=true);
		}
		cylinder(r=Shaft,h=WheelWidth*2,center=true,$fn=res2);
	}

}
module DriveWheel(w){
	translate([0,0,w/2]) difference(){
		union(){
			for (i=[1:10]){
				rotate([0,0,36*i]) translate([WheelDia/2-WheelDia/6,0,0]) intersection(){
					rotate([0,0,15]) cube([WheelDia/3,WheelDia/6,w],center=true);
					rotate([0,0,-15]) cube([WheelDia/3,WheelDia/6,w],center=true);
				}
			}
			translate([0,0,-w/2]) cylinder(r=WheelDia/3,h=w,$fn=res1);
		}
		cylinder(r=Shaft,h=w*2,center=true,$fn=res2);
	}
}
module Odometer_Base(){
	difference(){
		translate([-WheelDia/2-Clearance2,-WheelDia/2-Clearance2,-Spacing-DriveWidth-Clearance1]) cube([WheelDia/2+Clearance2+Shaft*2,BodyWidth,BodyLength+DriveWidth]);
		for (i=[1:Digits]){
			translate([0,0,(Spacing)*(i-1)-Over1*2-Clearance1]) cylinder(r=(WheelDia/2)+Clearance1,h=WheelWidth+Over1*6+Clearance1*2,$fn=res2);
			translate([0,-(WheelDia/2)-Clearance1,(Spacing)*(i-1)-Over1*2-Clearance1]) cube([((WheelDia/2)+Clearance1)*2,((WheelDia/2)+Clearance1)*2,WheelWidth+Over1*6+Clearance1*2]);
			translate([0,ShaftSpacing,(-Spacing+WheelWidth+Over1*2-Clearance1/2)+(Spacing)*(i-1)]) cylinder(r=(WheelDia/2)+Clearance1,h=DriveWidth+Clearance1*2,$fn=res2);
			translate([0,ShaftSpacing-(WheelDia/2)-Clearance1,(-Spacing+WheelWidth+Over1*2-Clearance1/2)+(Spacing)*(i-1)]) cube([((WheelDia/2)+Clearance1)*2,((WheelDia/2)+Clearance1)*2,Spacing-(WheelWidth+Over1*2)+Clearance1]);
			translate([WheelDia/4+Shaft,0,Spacing*(i-1)-Over1*2-Clearance1*3]) cube([WheelDia/2,15,Clearance1], center=true);
		}
		rotate([0,180,0]) translate([0,0,DriveWidth-Clearance1]) cylinder (r=(WheelDia/2)+Clearance1,h=WheelWidth+DriveWidth+Clearance1*3,$fn=res3);
		rotate([0,0,0]) translate([0,ShaftSpacing,-Over1-WheelWidth-DriveWidth-5-Clearance1]) cylinder (r=ShaftSpacing-FeedDia/2-FilamentSpacing+Clearance1,h=DriveWidth+Clearance1,$fn=res3);
		rotate([0,90,0]) translate([25,DriveWidth+FilamentSpacing+(Filament*1.5),0]) cylinder(r=Filament+Clearance1,h=100,center=true,$fn=res3);
		translate([0,0,BodyWidth/2]) cylinder(r=Shaft,h=BodyWidth*3,$fn=res3,center=true);
		translate([0,ShaftSpacing,BodyWidth/2]) cylinder(r=Shaft,h=BodyWidth*3,$fn=res3,center=true);
	}
}
module FeedDriveWheel(){
	difference(){
		cylinder(r=FeedDia/2,h=WheelWidth+DriveWidth,$fn=res3);
		translate([0,0,WheelWidth]) cube([WheelDia/3,WheelDia/3,WheelWidth],center=true);
		cylinder(r=Shaft,h=WheelWidth*2,center=true,$fn=res2);
	}
}
module DriveWheelIdle(){
	difference(){
		cylinder(r=ShaftSpacing-FeedDia/2-FilamentSpacing,h=WheelWidth,$fn=res3);
		cylinder(r=Shaft,h=WheelWidth*3,center=true,$fn=res2);
	}
}
module Full_Assembly(){
	module Assembled_Numbered_Wheels(){
		NumberedWheels();
		color("Blue") rotate([180,0,0]) translate([0,0,Over1+.1]) SideGear(Format);
		color("Blue") rotate([0,0,0]) translate([0,0,Over1*3+WheelWidth+.1]) SideGear(1);
		color("green") rotate([0,0,-90]) translate([-ShaftSpacing,0,-Spacing+WheelWidth+Over1*2+Clearance1/2]) DriveWheel(DriveWidth);
	}
	for (i=[1:Digits]){
		translate([0,0,(Spacing)*(i-1)]) Assembled_Numbered_Wheels();
	}
	/*For display show only first set of gears (to speed up processing)
	translate([0,0,0]) Assembled_Numbered_Wheels();
	*/
	translate([0,0,-(WheelWidth+DriveWidth)-DriveWidth-Over1]) FeedDriveWheel();
	translate([0,0,-DriveWidth+.1]) SideGear(TeethFeed);
	translate([0,ShaftSpacing,-Over1-WheelWidth-DriveWidth-5]) DriveWheelIdle();
	Odometer_Base();
}
module Parts_Layout(){
	rotate([0,-90,0]) translate([WheelDia/2+Clearance2,0,0]) Odometer_Base();
	for (i=[1:Digits]){
		translate([-(WheelDia+10)*(i-2),BodyWidth,0]) NumberedWheels();
		translate([-(WheelDia+10)*(i-2),BodyWidth+WheelDia+10,0])DriveWheel(DriveWidth);
		translate([-(WheelDia+10)*(i-2),BodyWidth+WheelDia*2+20,0])SideGear(Format);
		translate([-(WheelDia+10)*(i-2),BodyWidth+WheelDia*3+20,0])SideGear(1);
	}
	translate([BodyLength,0,0])SideGear(Format);
	translate([BodyLength+WheelDia+10,0,0])DriveWheelIdle();
	translate([BodyLength+WheelDia+10,WheelDia+10,0])FeedDriveWheel();
}
if (PrintMode==1){
	rotate([0,-90,0]) Full_Assembly();
} else {
	Parts_Layout();
}
```


[User]
Okay, so I'm working on this refreshable Braille display project, and I've got a pretty good handle on the basic mechanics, but I need some help turning it into a fully parametric design in OpenSCAD. The current version I have is functional, but it's not as flexible as it needs to be. I need to be able to easily adjust things like the cell spacing, dot size, chassis dimensions, and gearing.

Here’s the gist of the current design: It’s based on sliding bars that have bumps to form the Braille dots. These bars are moved by small motors and worm gears. There are also springs to return the pins when they're not engaged. The design uses several libraries, including polyScrewThread_r1.scad.

Here's what I'm looking for in the parametric OpenSCAD design:

**Core Requirements:**

*   **Braille Cell:** It should define the cell dimensions, including dot-to-dot horizontal and vertical spacing (`d2dH`, `d2dV`), cell-to-cell horizontal spacing (`c2c`), line-to-line spacing (`l2l`), dot diameter (`dotDia`), and dot height (`dotH`). All of these should be easily adjustable parameters.
*   **Device Parameters:**
    *   Number of cells (`numCells`)
    *   Edge width (`edgeWidth`) around the cells
    *   Overall scale factor (`scale`)
    *   Smoothness (`smooth`) for cylinders and spheres
*   **Springs:**
    *   Outer spring diameter (`sprngDia`)
    *   Spring length (`sprngL`)
    *   Wire channel diameter (`wireChanDia`)
    *   Spring preload length (`sprngPreL`)
    *   Spring retainer length (`sprngRetL`)
    *   Spring retainer width (`sprngRetW`)
*  **Sliding Bar:**
     * Sliding bar height (`barH`)
     * Sliding bar width (`barW`)
     * Sliding bar extra length on each end (`barXL`)
     * Sliding bar support rail radius (`barRailRad`)
     * Linear gear tooth angle (`gearAng`)
     * Linear gear tooth spacing (`gearStep`)
     * Gear undercut ratio (`gearUCR`)
     * Bar tolerance width (`barTolW`)
     * Bar tolerance height (`barTolH`)
     * Actuation bump height (`bumpH`)
     * Actuation bump angle (`bumpAng`)
*   **Chassis:**
    *   Chassis length (`chasL`)
    *   Chassis wall thickness (`chasWT`)
    *   Circuit board thickness (`brdT`)
    *   Circuit board length (`brdL`)
    *   Pin hole depth (`pinHolD`)
    *   Pin hole tolerance (`pinHolTol`)
*   **Motor and Worm Gear:**
    *   Motor radius (`motR`)
    *   Motor length (`motL`)
    *   Motor shaft diameter (`motShftDia`)
    *   Motor mount thickness (`motMntT`)
    *   Motor mount length (`motMntL`)
    *   Motor mount tolerance (`motMntTol`)
    *   Motor shaft diameter (`shaftD`)
    *   Gear length (`gearL`)
    *   Gear width (`gearW`)

**Modules Needed:**
I need modules for the following parts:

*   **`pins(n)`:** Creates an array of pins.
*   **`pin()`:** Generates a single pin.
*   **`test_chassis()`:** Makes a chassis for testing pin fits.
*   **`chassis()`:**  Generates the main chassis with pin holes, bar slots, and motor mounts.
*   **`pin_holes()`:** Creates the pin holes for subtraction from the chassis.
*   **`pin_hole(x,y)`:** Creates a single pin hole.
*   **`base()`:** Generates a base by cutting off the motor mount section from the chassis.
*   **`motor_mount()`:** Creates a motor mount.
*   **`bar(tolW, tolH)`:**  Creates a sliding bar with support rail, with adjustable tolerances.
*   **`bar_fit()`:** Generates a test cube for testing bar fit.
*   **`notched_bar()`:**  Generates the sliding bar with pin notches and a gear on the other side.
*   **`gear(step, angle, length, width)`:**  Generates a linear gear.
*   **`ramp(x,y,z)`:**  Generates a ramp shape for gear teeth and bump slopes
*    **`notches()`:** Generates pin notches on bar, with sloped surfaces
*   **`worm_gear()`:** Generates the worm gear.

**Important Considerations:**

*   The design needs to be robust enough to be 3D printed, meaning some tolerances are needed.
*   It would be great to be able to easily adjust the number of cells (`numCells`).
*   The `scale` parameter should ideally apply to the entire cell. This is not currently working, but needs to be fixed.
*   The pin holes for the pins need to be created with the proper tolerances so they can slide easily but with minimal slop.
* The gear on the bar should have an undercut ratio (`gearUCR`) to prevent binding.
*The bump shapes to lift pins should have an adjustable slope angle (`bumpAng`).

**What I’m looking for:**

I need a complete parametric OpenSCAD file with all the above parameters and modules that I can use to generate the 3D models. I am primarily focused on parametric design, rather than focusing on specific design elements, except where noted. This means that the different dimensions of the modules I mentioned (for the pin, base, bar, chassis, etc.) should all be based off of the variables that are explicitly mentioned above. I need the design to be flexible and easy to adjust for future prototyping and experimentation. I don't need the exact motor model included, just a mounting space defined.

Can you help me generate this parametric OpenSCAD file?

[Assistant]
Parametric_Braille_Printed_Cell.scad:
```
//-----------------------------------------------------
//				Libraries
//-----------------------------------------------------
include <polyScrewThread_r1.scad>

//-----------------------------------------------------
//				Braille Cell Dimensions
//-----------------------------------------------------
d2dH=2.5;				//dot to dot horizontal spacing
d2dV=2.5;				//dot to dot vertical spacing
c2c=7.5;				//cell to cell horizontal spacing
l2l=10;				//line to line spacing
dotDia=1.5;			//dot diameter
dotH=0.7;				//dot height

//-----------------------------------------------------
//					Device parameters
//-----------------------------------------------------
						//general
numCells=1;				//Number of cells
edgeWidth=3;				//Width of edge around cells
scale=1;					//Scaling factor for the Braille cell
smooth=25;				//Smoothness of cylinders and spheres

						//Springs
sprngDia=2;				//Retraction spring outer diameter
sprngL=4.5;					//Retraction spring length
wireChanDia=0.5;			//Position feedback wire channel diameter
sprngPreL=.75;				//Spring Pre Load
sprngRetL=3;				//Spring retainer length
sprngRetW=0.15;			//Spring retainer width

						//Bar
barH=7.5;					//Sliding bar height
barW=1.8;					//Sliding bar width
barXL=15;					//Sliding bar extra length on each end
barRailRad=1;				//Sliding bar support rail radius
gearAng=30;				//Linear gear tooth angle
gearStep=2;				//Linear gear tooth spacing
gearUCR=0.75;				//Gear undercut ratio to reduce cleanup of teeth due to fat 1st layer
barTolW=0.3;				//Tolerance between bar and inner wall
barTolH=0.5;				//Tolerance between gear on bottom of bar and chassis
bumpH=0.6;				//Actuation bump heights
bumpAng=45;				//bump slope

						//Chassis
chasL=50;					//Chassis length
chasWT=barW+barTolW+4;	//Chassis wall thickness
brdT=0.6;				//Circuit board thickness
brdL=80;					//Circuit board length
pinHolD=6;				//Pin hole depth
pinHolTol=0.2;			//Pin hole tolerance

						//Motor and Worm Gear
motR=2;					//Motor radius
motL=10;					//Motor length
motShftDia=1;				//Motor Shaft Diameter
motMntT=2;				//Motor mount thickness
motMntL=4;				//Motor mount length
motMntTol=0.25;			//Motor mount tolerance
shaftD=1;					//Motor shaft diameter
gearL=5;					//Gear length along shaft
gearW=7.5;				//Gear width at outermost part of thread

//-----------------------------------------------
//			Computed Variables and Constants
//-----------------------------------------------
PI=3.141592;

pinL=sprngDia/2+sprngRetW+sprngRetL+sprngL-sprngPreL+pinHolD;
brdH=barH+barW;				//Circuit board height (calculate and make board to this spec)

//-----------------------------------------------
//					Part Generators
//-----------------------------------------------

//pins(6);
				//makes an array of n pins laying flat on their sides

//bar_fit();
				//subtract a bar with barTol from a test cube for a test hole

//notched_bar();
				//creates a bar with pin notches one side and gear on other

//base();
				//creates a base for printing

motor_mount();
				//creates a motor mount for printing

//worm_gear();
				//creates a worm gear for the motor to move the bar

//test_chassis();
				//makes a test chassis to check pin fit.
				//Height should correspond to pins poking out at final height
				//when held flat on a table.

//chassis();
				//creates a chassis with pin holes, bar slots and motor mounts

//-----------------------------------------------
//					sandbox
//-----------------------------------------------

//-----------------------------------------------
//					modules
//-----------------------------------------------

module pins(n){
//accepts input for number of pins
//outputs an array of pins side by side lying on their sides

	for(i=[0:2.5*1.3:(n-1)*2.5*1.3]){
		translate([i,0,0])
			rotate([-90,90,0])
				pin();
	}
}

module pin(){
	difference(){
		union(){
			sphere(sprngDia/2+sprngRetW,$fn=25);
			cylinder(h=sprngRetL,r=sprngDia/2+sprngRetW,$fn=smooth);
			translate([0,0,sprngRetL])
				cylinder(h=sprngL-sprngPreL+pinHolD-dotDia*scale/2+dotH,r=dotDia*scale/2,$fn=smooth);
			translate([0,0,sprngRetL+sprngL-sprngPreL+pinHolD-dotDia*scale/2+dotH])
				sphere(dotDia*scale/2,$fn=smooth);
		}
		translate([dotDia*scale/2,-50,-10])
			cube(100);
		translate([-100-dotDia*scale/2,-50,-10])
			cube(100);
	}
}

module test_chassis(){
//test chassis with pin holes
//calls pin_holes

	x=numCells*c2c+2*edgeWidth;
	y=l2l+2*edgeWidth;
	z=pinL-dotH;
	difference(){
		cube([x,y,z]);
		pin_holes();
	}
}

module chassis(){
//chassis with bar hole, motor mount, pin and worm gear access holes
//calls bar(barTolW,barTolH) pin_holes() and motor_mount()

	x=numCells*c2c+2*edgeWidth;
	y=l2l+2*edgeWidth;
	z=pinL-dotH+barH+barTolH+chasWT;

	difference(){
		cube([x,y,z]);
		pin_holes();
		for(i=[0:numCells-1]){
			translate([edgeWidth+i*c2c+c2c/2+brdT/2,-0.1,pinL-dotH]){
				bar(barTolW,barTolH);
//motor hole back
				translate([barW/2+barTolW,edgeWidth+l2l,barH+gearW/2])
					rotate([-90,0,0])
						cylinder(h=motL, r=motR, $fn=smooth);
//worm gear hole back
				translate([barW/2+barTolW,edgeWidth+l2l+0.001,barH+gearW/2])
					rotate([90,0,0])
						cylinder(h=gearL, r=gearW/2, $fn=smooth);

			}
			translate([edgeWidth+i*c2c+c2c/2-brdT/2,-0.1,pinL-dotH]){
				scale([-1,1,1])
					bar(barTolW,barTolH);
//Circuit board Slot
				translate([-0.001,0,-barW/2])
					cube([brdT+0.002,brdL,brdH+barTolH]);
//motor hole front
				translate([-barW/2-barTolW,edgeWidth,barH+gearW/2])
					rotate([90,0,0])
						cylinder(r=motR, h=motL, $fn=smooth);
//worm gear hole front
				translate([-barW/2-barTolW,edgeWidth-0.001,barH+gearW/2])
					rotate([-90,0,0])
						cylinder(r=gearW/2, h=gearL, $fn=smooth);
			}
			translate([edgeWidth+c2c/2+i*c2c,edgeWidth+l2l/2,z-chasWT/2-0.001])
				cylinder(r=(d2dH+sprngDia+sprngRetW*2)/2,h=chasWT+0.003,center=true,$fn=smooth);
			translate([edgeWidth+c2c/2+i*c2c,edgeWidth+l2l/2,z])
				cube([barW+2*barTolW+gearW+brdT,l2l+0.002,2*chasWT+0.001],center=true);
		}
	}
}

module pin_holes(){
//creates a set of pins in braille array for subtraction from chassis
//holes generated for upside down chassis
	difference(){
		for(i=[0:numCells-1]){
			translate([edgeWidth+c2c/2+i*c2c,edgeWidth+l2l/2,pinHolD+sprngPreL+(pinL-pinHolD-sprngPreL)/2])
				cube([d2dH+dotDia,2*d2dV,pinL-pinHolD-sprngPreL],center=true);
			for(j=[0:2])
				for(k=[0:1])
					pin_hole(edgeWidth+scale*(i*c2c+(c2c-d2dH)/2+k*d2dH),edgeWidth+scale*(j*d2dV+(l2l-2*d2dV)/2));
		}
		for(i=[0:numCells-1]){
			translate([edgeWidth+c2c/2+i*c2c,edgeWidth+l2l/2,pinHolD+(pinL-pinHolD)/2])
				cube([0.42,3*d2dV+edgeWidth,pinL-pinHolD+0.5],center=true);
		}
	}
}

module pin_hole(x,y){
	translate([x,y,-0.1])
		union(){
			cylinder(h=pinHolD+sprngPreL+0.2,r=scale*dotDia/2+pinHolTol,$fn=smooth);
			translate([0,0,pinHolD+sprngPreL+0.1])
				cylinder(h=pinL-pinHolD-sprngPreL,r=sprngDia/2+sprngRetW+pinHolTol,$fn=smooth);
		}
}

module base(){
//calls chassis and cuts off the motor mount section on top for printing
	x=numCells*c2c+2*edgeWidth;
	y=l2l+2*edgeWidth;
	z=pinL-dotH+barH+barTolH;

rotate([90,0,0])
	difference(){
		chassis();
		translate([0,0,z-0.001])
			cube([x,y,chasWT+0.002]);

	}

}

module motor_mount(){
//calls chassis and cuts off the base section and repositions the motor mount for easy printing

	x=numCells*c2c+2*edgeWidth;
	y=l2l+2*edgeWidth;
	z=pinL-dotH+barH+barTolH;

translate([0,y,chasWT])
	rotate([180,0,0])
		translate([0,0,-z])
			difference(){
				chassis();
				cube([x,y,z]);
			}
}

module bar(tolW,tolH){
//creates a bar with a support rail on one side
//tol provides a definable tolerance for subtraction to make the holes larger
	union(){
		cube([barW+tolW,2*barXL+10*d2dV*scale,barH+tolH]);
		translate([barW+tolW,0,(barH+tolH)*1/3])
			rotate([-90,0,0])
				difference(){
					cylinder(h=2*barXL+10*d2dV,r=barRailRad,$fn=smooth);
					translate([0.8*barRailRad,-barRailRad,-0.1])
						cube([barRailRad,2*barRailRad,2*barXL+10*d2dV+0.2]);
				}
	}
}

module bar_fit(){
//calls bar(barTolW,barTolH) to subtract it from a small cube to test fit with set tolerance

	difference(){
		cube([3*(barW+barRailRad),10,1.65*barH]);
		translate([(barW+barRailRad),-1,barH/4]){
			bar(barTolW,barTolH);
			translate([(barW+barTolW)/2,-1,barH+barTolH])
				rotate([-90,0,0])
					cylinder(h=l2l+2*edgeWidth+2,r=(barW+barTolW)/2,$fn=smooth);
		}
	}
}

module notched_bar(){
//calls bar(0) to make a control rod and then cuts out notches where the pins should drop
//calls ramp() to make sloped surfaces
//calls gear(step,angle,length,width) to cut teeth into the top

	difference(){
		rotate([0,-90,0])
			difference(){
				bar(0,0);
				translate([-0.00000001,0,barH+.0001])
					gear(gearStep, gearAng, 2*barXL+10*d2dV*scale, barW+.00001);
				notches();
			}
		translate([-barH,-1,0])
			cube([gearUCR*gearStep/2/tan(gearAng),100,0.3]);
		translate([-bumpH-0.1,-1,0])
			cube([bumpH+0.2,100,0.3]);
	}
}

module gear(step,angle,length,width){
//makes a linear gear along the y axis to be cut from the bar
//calls ramp(x,y,z)

	h=step/2/tan(angle);
	for(i=[-1:step:length]){
		translate([0,step/2+i,0])
		union(){
			ramp(width,step/2,-h);
			ramp(width,-step/2,-h);
		}
	}
}

module ramp(x,y,z){
//makes a ramp with:
	//upper corner on positive z axis at z
	//upper edge along x axis at height z for distance x
	//taper in positive y direction ending at y

	scale([x,y,z])
		rotate([90,0,90])
			linear_extrude(height=1)
				polygon(points=[[0,0],[0,1],[1,0]]);
}

module notches(){
//creates a series of notches to be cut from the bottom of the bar, with angle indicating slope
//calls ramp(x,y,z)

	bumpRmpL=bumpH/tan(bumpAng);
	union(){
		cube([barW,barXL,bumpH]);
		translate([0,barXL,0])
			cube([barW,2*d2dV*scale-1/2*bumpRmpL,bumpH]);
		translate([-0.1,barXL+2*d2dV*scale-1/2*bumpRmpL,-0.0000000001])
			ramp(barW+0.2,bumpRmpL,bumpH);
		translate([-0.1,barXL+5*d2dV*scale+1/2*bumpRmpL,-0.0000000001])
			ramp(barW+0.2,-bumpRmpL,bumpH);
		translate([0,barXL+5*d2dV*scale+1/2*bumpRmpL,0])
			cube([barW,d2dV*scale-bumpRmpL+0.0001,bumpH]);
		translate([-0.1,barXL+6*d2dV*scale-1/2*bumpRmpL,-0.0000000001])
			ramp(barW+0.2,bumpRmpL,bumpH);
		translate([-0.1,barXL+7*d2dV*scale+1/2*bumpRmpL,-0.0000000001])
			ramp(barW+0.2,-bumpRmpL,bumpH);
		translate([0,barXL+7*d2dV*scale+1/2*bumpRmpL,0])
			cube([barW,3*d2dV*scale,bumpH]);
		translate([0,barXL+10*d2dV*scale,0])
			cube([barW,barXL,bumpH]);
	}
}

module worm_gear(){
//calls screw_thread to make a worm gear
/* screw_thread(15,   // Outer diameter of the thread
 *               4,   // Step, traveling length per turn, also, tooth height, whatever...
 *              55,   // Degrees for the shape of the tooth
 *                       (XY plane = 0, Z = 90, btw, 0 and 90 will/should not work...)
 *             100,   // Length (Z) of the tread
 *            PI/2,   // Resolution, one face each "PI/2" mm of the perimeter,
 *               0);  // Countersink style:
 *                         -2 - Not even flat ends
 *                         -1 - Bottom (countersink'd and top flat)
 *                          0 - None (top and bottom flat)
 *                          1 - Top (bottom flat)
 *                          2 - Both (countersink'd)
 */
	difference(){
		screw_thread(gearW,gearStep,gearAng,gearL,PI/5,2);
		cylinder(h=gearL+0.01,r=motShftDia/2, $fn=100);
	}
}
```


[User]
Okay, I need help creating a more robust, parametric socket wrench design. I've got a basic scad file here that I was using, but it's pretty rough and I'd like to improve it with better features.

Here's what I'm looking for:

**Overall Functionality:**

*   The wrench should have a different sized drive socket on each end.
*   The drive sockets should be customizable, allowing for common drive sizes like 1/4", 3/8", 1/2", 3/4", and 1". I'd like to specify the drive sizes in millimeters, like in my existing code, but it should use dropdown menus for common imperial sizes. I still want to be able to enter custom sizes in mm too.
*   I want a tolerance parameter for the drive sockets.  The actual internal size of the drive should be slightly smaller than the nominal drive size.
*   The overall wrench shape should be a rectangular beam with rounded ends.

**Specific Design Requests:**

1.  **Drive Sockets:**
    *   The drive sockets should be created using a hexagon shape (for a hex socket). I'd like to be able to specify the depth of the socket.
    *   I want the option to use a 'chamfer' on the edges of the drive socket, just like in your example of the hex socket.
    *   I would like the option to specify the internal socket type.  That is, a hex, a square, or maybe some other shape.  I'd like to be able to specify the number of faces and the internal circumscribed radius.

2.  **Wrench Body:**
    *   The main body should have a rectangular cross section with rounded ends, as in my existing code.
    *   I'd like to be able to easily adjust the width, height (thickness) and overall length of the wrench.
    *   The rounded ends should blend smoothly with the rectangular center section.
    *   I'd like to be able to add a fillet to the edges of the rectangular center section.
    *   I would like to be able to adjust the 'margin' length of the rounded ends.

3.  **Parametric Control:**
    *   Everything should be fully parametric, allowing easy customization of all dimensions and features.
    *   Units should be in millimeters.
    *   I would like to use the MCAD library if it has useful modules to reduce the length of the script. I don't have any experience using any other libraries.

**Output:**

*   I need the final design in a single, parametric OpenSCAD file.

Can you help me create this? I'm looking for a well-structured, easy-to-customize design using dropdown menus and parameters to control all aspects of the tool.

Here is my original, basic script:

```scad
//Socket wrench (customizable)

/* [Drives] */

// size of drive 1
drive1 = 6.35; // [6.35:1/4", 9.525:3/8", 12.7:1/2", 19.05:3/4", 25.4:1"]
// size of drive 2
drive2 = 12.7; // [6.35:1/4", 9.525:3/8", 12.7:1/2", 19.05:3/4", 25.4:1"]
// drive size tolerance (mm)
tolerance = 0.2;

tolDrive1 = drive1 - tolerance;
tolDrive2 = drive2 - tolerance;

/* [Tool] */

// width of tool (mm)
D = 15;
// MARGIN
M = D/2;
// height (thickness) of tool (mm)
H = 10;
// total length of tool (mm)
Ltot = 150;

// Length from Center of One Side to Center of Other Side
L = Ltot-2*(D/2+M);
union()
{
	//Jamesdavid's parametric wrench
	difference() {
		union() {
			translate([0,L/2,H/2]) {
				cylinder(r = (D/2+M), h = H,center = true);
			}
			translate([0,-L/2,H/2]) {
				cylinder(r = (D/2+M), h = H,center = true);
			}
			translate([-1*D/2,-L/2,0]) {
				cube([D,L,H], center=false);
			}
		}
	}

	//socket drives
	translate([0, L/2, H+(tolDrive1/2)])
	cube(size = tolDrive1, center = true);

	translate([0, -L/2, H+(tolDrive2/2)])
	cube(size = tolDrive2, center = true);
}
```

[Assistant]
wrench.scad:
```
//Socket wrench (customizable)

/* [Drives] */

// size of drive 1
drive1 = 6.35; // [6.35:1/4", 9.525:3/8", 12.7:1/2", 19.05:3/4", 25.4:1"]
// size of drive 2
drive2 = 12.7; // [6.35:1/4", 9.525:3/8", 12.7:1/2", 19.05:3/4", 25.4:1"]
// drive size tolerance (mm)
tolerance = 0.2;

tolDrive1 = drive1 - tolerance;
tolDrive2 = drive2 - tolerance;

/* [Tool] */

// width of tool (mm)
D = 15;
// MARGIN
M = D/2;
// height (thickness) of tool (mm)
H = 10;
// total length of tool (mm)
Ltot = 150;

// Length from Center of One Side to Center of Other Side
L = Ltot-2*(D/2+M);
union()
{
	//Jamesdavid's parametric wrench
	difference() {
		union() {
			translate([0,L/2,H/2]) {
				cylinder(r = (D/2+M), h = H,center = true);
			}
			translate([0,-L/2,H/2]) {
				cylinder(r = (D/2+M), h = H,center = true);
			}
			translate([-1*D/2,-L/2,0]) {
				cube([D,L,H], center=false);
			}
		}
	}

	//socket drives
	translate([0, L/2, H+(tolDrive1/2)])
	cube(size = tolDrive1, center = true);

	translate([0, -L/2, H+(tolDrive2/2)])
	cube(size = tolDrive2, center = true);
}
```


[User]
Okay, I'd like to design a parametric wobble toy, similar to the "Minimalist Wobbler" example I've seen, but with a few modifications and more flexibility.

Here's the basic idea: It's a ring with a larger outer diameter and a smaller inner diameter, like a donut. However, it has two key features:

1.  **Offset Cutouts:** Instead of just a simple ring, I want two small, circular cutouts on opposite sides of the ring, near the outer edge. These cutouts are not just holes all the way through; they are shallow circular pockets, like a countersink that doesn't go all the way through. The design in the given example accomplishes this using cylinders and boolean subtraction.
2.  **Slot:** There should also be a slot cut into the ring that's perpendicular to the flat face of the ring and goes through the thickness. This slot should start somewhere between the inner and outer radius, and have a small rectangular profile. The design in the given example accomplishes this using a difference of a cylinder and a cube.

I'd like to be able to control the following parameters:

*   **`outer_diameter`**: The overall diameter of the ring.
*   **`inner_diameter`**: The diameter of the central hole.
*   **`thickness`**: The thickness of the ring.
*   **`cutout_diameter`**: The diameter of the circular cutouts.
*   **`cutout_depth`**: The depth of the circular cutouts (how shallow they are).
*   **`cutout_offset`**: The distance between the center of the circular cutout and the outer edge of the ring.
*  **`slot_width`**: The width of the rectangular slot.
*  **`slot_location`**: The starting point of the slot on the radius.
*  **`corner_radius`**: A fillet on the internal and external top and bottom ring edges
*  **`slot_corner_radius`**: A fillet on all the edges of the slot.

I would like the code to use the `BOSL2` library for any features that would be well-supported there, such as `fillet_2d` which may allow for easier implementation of the desired fillets.

Can you generate an OpenSCAD file that implements this design?

[Assistant]
MRingRoller.scad:
```
// Minimalist Wobbler
// Version 1.0
// Luigi Cisana, 17 May, 2013

outer_diameter=36;

hole_diameter=26;

thickness=3; // [1:5]

/* [Hidden] */
$fn=96;
facet=0.5;

height=thickness;
radius=outer_diameter/2;
iradius=hole_diameter/2;

sradius=radius-iradius+1;
slot=sradius;

x1=2;
y1=sqrt(pow(5,2)-x1);

difference() {
	union() {
		difference() {
			cylinder(h=height,r=radius);
			translate ([-x1,-y1,0]) difference() {
				cylinder(h=height,r=radius+10);
				cylinder(h=height/2,r1=radius-height/2+5,r2=radius+5);
				translate([0,0,height/2]) cylinder(h=height/2,r1=radius+5,r2=radius-height/2+5);
			}
			translate ([-x1,y1,0]) difference() {
				cylinder(h=height,r=radius+10);
				cylinder(h=height/2,r1=radius-height/2+5,r2=radius+5);
				translate([0,0,height/2]) cylinder(h=height/2,r1=radius+5,r2=radius-height/2+5);
			}
			cylinder(h=facet,r1=iradius+facet,r2=iradius);
			translate ([0,0,facet]) cylinder(h=height-2*facet,r1=iradius,r2=iradius);
			translate ([0,0,height-facet]) cylinder(h=facet,r1=iradius,r2=iradius+facet);
		}
		translate([radius-slot,0,0]) cylinder(h=facet,r1=sradius-facet,r2=sradius);
		translate([radius-slot,0,facet]) cylinder(h=height-2*facet,r=sradius);
		translate([radius-slot,0,height-facet]) cylinder(h=facet,r1=sradius,r2=sradius-facet);
	}  //union
	translate([radius-slot+facet,-height/2,0]) cube(size=[slot,height,height],center=false);
}

```


[User]
Okay, I'd like to request a parametric OpenSCAD file for generating a paraboloid. I've found an existing design that's almost what I need, but I'd like a version that's even more customizable.

Essentially, I want to be able to control these parameters:

*   **`y`**: The height of the paraboloid along the y-axis. I'd like to be able to set this to any value between 0 and 100, potentially higher if possible in the future, but starting with that range.
*   **`f`**: The focus distance of the paraboloid. This is related to the curvature, and I need to adjust it. I'd like to set values between 0 and 100 as a starting range.
*   **`fc`**:  This controls where the paraboloid is centered. If it's 1, the base of the paraboloid is at the focal point (x=0, y=f). If it's 0, the base is at (x=0, y=0). It should be a simple switch, either 0 or 1.
*   **`rfa`**: The radius of the focal area. I need to be able to define a radius around the focal point.  I need to specify this with values from 0 to 100, and a radius of 0 means a point focus.
*   **`detail`**:  This is for the smoothness of the curved shape and corresponds to the `$fn` parameter of the `rotate_extrude` function. I think the current range of 44 to 240 should be good for my purposes. I'm happy with that range for now.

The design is made by using a rotate-extrude command on a 2D shape cut out from a cone. So it's a little complicated on how the profile is generated. I'd like to keep the paraboloid's basic design the same: it should be created by rotating a parabolic curve, cut out using a rotated cone, rather than using a purely mathematical paraboloid function, because I want to control detail at the "cut". The profile should also have a flat area at the focal point of a defined radius (or a point if rfa is 0).

So, to recap, I'm looking for a parametric OpenSCAD module called `paraboloid` that takes `y`, `f`, `fc`, `rfa`, and `detail` as input parameters and generates the described paraboloid. I don't need any other helper modules or libraries. Just the single module is enough.

[Assistant]
customizer_a4_4d_26_e9_98_Paraboloid.scad:
```
//////////////////////////////////////////////////////////////////////////////////////////////
// Paraboloid module for OpenScad
//
// Copyright (C) 2013  Lochner, Juergen
// http://www.thingiverse.com/Ablapo/designs
//
// This program is free software. It is
// licensed under the Attribution - Creative Commons license.
// http://creativecommons.org/licenses/by/3.0/
//////////////////////////////////////////////////////////////////////////////////////////////
//Edited by Takuya Yamaguchi for making customaizable.
//////////////////////////////////////////////////////////////////////////////////////////////

//height of paraboloid
y=50 ; //[0:100]

//focus distance
f=10;	//[0:100]

//center paraboloid position
fc=1;	// [1,0]

//radius of the focus area :
rfa=0 ;//[0:100]

// detail = $fn of cone
detail=120; //[44:240]

module paraboloid (y, f, rfa, fc, detail){
	// y = height of paraboloid
	// f = focus distance
	// fc : 1 = center paraboloid in focus point(x=0, y=f); 0 = center paraboloid on top (x=0, y=0)
	// rfa = radius of the focus area : 0 = point focus
	// detail = $fn of cone

	hi = (y+2*f)/sqrt(2);								// height and radius of the cone -> alpha = 45° -> sin(45°)=1/sqrt(2)
	x =2*f*sqrt(y/f);									// x  = half size of parabola

   translate([0,0,-f*fc])								// center on focus
	rotate_extrude(convexity = 10,$fn=detail )		// extrude paraboild
	translate([rfa,0,0])								// translate for fokus area
	difference(){
		union(){											// adding square for focal area
			projection(cut = true)																			// reduce from 3D cone to 2D parabola
				translate([0,0,f*2]) rotate([45,0,0])													// rotate cone 45° and translate for cutting
				translate([0,0,-hi/2])cylinder(h= hi, r1=hi, r2=0, center=true, $fn=detail);   	// center cone on tip
			translate([-(rfa+x ),0]) square ([rfa+x , y ]);											// focal area square
		}
		translate([-(2*rfa+x ), -1/2]) square ([rfa+x ,y +1] ); 					// cut of half at rotation center
	}
}

paraboloid (y, f, rfa, fc, detail);

```