[User]
Hey, I'm looking for an OpenSCAD design for a parametric fractal tree, something I can 3D print. I've found a 2D version online but need a 3D version. It uses linear extrude to get its height.

I want to be able to control a number of parameters, things like:

*   **Base size of the trunk:** This should be a real number and should influence how big the overall tree is.
*   **Recursion Depth:** This is how many levels of branching there are. This should be an integer.
*   **Seed:** An integer random seed to influence the structure of the tree.
*   **Thickness:** The height of the linear extrusion to make it 3D printable.
*   **Width ratios:**  I want to control the width of the bottom and top of each branch segment. These should be ratios relative to the size of the parent branch.
*   **Joint Size:** The size of the joint between each branch as a percentage of the branch size.
*   **Growth Ranges:** The amount that a child branch grows relative to its parent, with a minimum and a maximum percentage.
*   **Leaf Parameters:** I want to be able to control whether there are leaves, and if so how big they are relative to the branches.

The existing code I found generates the tree in 2D by using `trapezoid` modules for the branches. A trunk module is the starting point and decides if it will generate a 1, 2, or 3 branch tree, but then these are made using `branch_one`, `branch_two`, or `branch_three`. These branch modules then recurse back to trunk modules, adding a small circle at the joint of the branches. It uses rands to generate slightly varied sizes, rotations, and leaves, which I'd also like.

Could you generate a parametric OpenSCAD file based on this? I’m hoping to use it as a basis for some more complex designs later. I would like it to be all in a single file unless you think a library should be used. I don't need any library files created. Thanks.

[Assistant]
fractal_tree.scad:
```
/* [Tree] */

// Base size for trunk
size = 100; //[10:500]

// Depth of recursion (more depth, more complexity)
depth = 6; //[1:9]

// Psuedo-random seed to base tree structure on
seed = 42; //[0:100]

// Thickness for printable STL
thickness = 10; //[1:100]

// ratio of bottom of branch to previous branch
widthBottom = 0.25; //[0.1:0.05:1.2]

// ratio of top of branch to previous branch
widthTop = 0.18; //[0.1:0.05:1.2]

// size of joint between branches perportional to branch size
joint = 0.11; //[0:0.01:1]

// minimum amount to grow new brach as percentage of previous
minGrowth = 0.8; //[0.1:0.05:1.2]

// maximum amount to grow new branch as percantage of previous
maxGrowth = 1.2; //[0.01:0.05:1.2]

// size of leaf relative to branch size
leafScale = 0.5; //[0:0.1:1]

// add leaves?
leaf = false; //[true, false]

/* [Hidden] */

/*
2D fractal Tree

This creates a TWO DIMENSIONAL tree that can be used in creating laser-cut designs

It is possible to create a 3d extrusion of the tree using the following code:
  linear_extrude(height = 5) {
    trunk();
  }

Based on "Procedurally Generated Trees" by steveweber314 on instructables
http://www.instructables.com/id/Procedurally-Generated-Trees/

to use from with an OpenSCAD design:

  use </path/to/this/file/fractal_tree.scad>

call with:
trunk();

paramaters:
  size = [real]               Base size for the trunk
  depth = [integer 0:1]       Number of recursions (warning: /exponentially more
                              opperations per increase of depth
  seed = [real>0]             Random seed to base tree on
  widthBottom = [real 0:1]    Width of bottom of each segment as a proportion of size
  widthTop = [real 0:1]       Width of top of each segment a s aproportion of size
  joint = [real 0:1]          Size of joint as percentage of size
  minGrowth = [real 0.1:1.2]  Minimum amount to grow branch as percentage of previous
  maxGrowth = [real 0.1:1.2]  Maximum amount to grow branch as precentage of previous
  leafScale = [real 0.1:1]    Radius of leaf as a percentage of branch size
  leaf = [boolean true:false] True: include leaves, False: skip leaves

*/

linear_extrude(height = thickness) {
  trunk(size = size, depth =depth, seed = seed, widthBottom = widthBottom,
      widthTop = widthTop, joint = joint, minGrowth = minGrowth, maxGrowth = maxGrowth,
      leafScale = leafScale, leaf = leaf);
}

//examples

//trunk(size = 50, depth = 6, leafScale = .5, seed = 56, minGrowth = .89,
//      maxGrowth = 1, leaf = false);

//trunk(depth = 5, seed = 58);
//trunk(size = 100, seed = 47);

module trapezoid(h = 10, b1 = 10, b2 = 5) {
  points=[[-b1/2, 0], [b1/2, 0], [b2/2, h], [-b2/2, h]];
  polygon(points);
}

module trunk(size = 100, depth = 7, seed = 6,
            widthBottom = 0.25, widthTop = 0.18, joint = 0.11,
            minGrowth = 0.8, maxGrowth = 1.2,
            leafScale = 0.5, leaf = false) {

    entropy = rands(0.1, leafScale, seed+2)[0];
    branchType = rands(0, 100, 1, seed+3)[0];

    //skip branches smaller than 10% of size
    if (size > size*.1) {

      if (0 < branchType && branchType < 15) {
        branch_one(size = size*.9, depth = depth, seed = seed+2,
                  widthBottom = widthBottom, widthTop = widthTop,
                  joint = joint, minGrowth = minGrowth, maxGrowth = maxGrowth,
                  leafScale = leafScale, leaf = leaf);
      }      if (15 < branchType && branchType < 80) {
        branch_two(size = size*.9, depth = depth, seed = seed+2,
                  widthBottom = widthBottom, widthTop = widthTop,
                  joint = joint, minGrowth = minGrowth, maxGrowth = maxGrowth,
                  leafScale = leafScale, leaf = leaf);
      }      if (80 < branchType && branchType < 100) {
        branch_three(size = size*.9, depth = depth, seed = seed+2,
                  widthBottom = widthBottom, widthTop = widthTop,
                  joint = joint, minGrowth = minGrowth, maxGrowth = maxGrowth,
                  leafScale = leafScale, leaf = leaf);
      }

    } else {
       if (leaf) {
        //color("red")
          leaf(size*entropy, seed);
      }
    }
}

module leaf(size, seed) {
  ratio = rands(1, 2, 1, seed+2)[0];
  scale([ratio, 1, 1]) {
    circle(r = size, $fn = 36);
  }
}

module branch_one(size, depth, seed, widthBottom, widthTop, joint,
                  minGrowth, maxGrowth, leafScale,
                  leaf) {
  sizemod = rands(minGrowth, maxGrowth, 10, seed);
  entropy = rands(0.1, leafScale, seed+2)[0];
  rotations = rands(-10, 10, 10, seed);

  //color("orange")
    trapezoid(h = size*sizemod[0], b1 = size*widthBottom, b2 = size*widthTop);

  translate([0, size*sizemod[0], 0])
    if (depth > 0) {
      union() {
        circle(r = size*joint, $fn = 36);
        rotate([0, 0, 0+rotations[0]])
          trunk(size = size*.9*sizemod[1], depth = depth-1, seed = seed+2,
                widthBottom = widthBottom, widthTop = widthTop, joint = joint,
                minGrowth = minGrowth, maxGrowth = maxGrowth,
                leafScale = leafScale, leaf = leaf);
      }
    } else {
      if (leaf) {
        //color("red")
          leaf(size*entropy, seed);
      }
    }
}

module branch_two(size, depth, seed, widthBottom, widthTop, joint,
                  minGrowth, maxGrowth, leafScale,
                  leaf) {
  sizemod = rands(minGrowth, maxGrowth, 10, seed);
  entropy = rands(0.1, leafScale, seed+2)[0];
  rotations = rands(-10, 10, 10, seed);

  //color("yellow")
    trapezoid(h = size*sizemod[0], b1 = size*widthBottom, b2 = size*widthTop);

  translate([0, size*sizemod[0], 0])
    if (depth > 0) {
      union() {
        circle(r = size*joint);
        rotate([0, 0, 30+rotations[0]])
          trunk(size = size*.9*sizemod[1], depth = depth-1, seed = seed+2,
                widthBottom = widthBottom, widthTop = widthTop, joint = joint,
                minGrowth = minGrowth, maxGrowth = maxGrowth,
                leafScale = leafScale, leaf = leaf);
        rotate([0, 0, -30+rotations[1]])
          trunk(size = size*.9*sizemod[2], depth = depth-1, seed = seed+3,
                widthBottom = widthBottom, widthTop = widthTop, joint = joint,
                minGrowth = minGrowth, maxGrowth = maxGrowth,
                leafScale = leafScale, leaf = leaf);
      }
    } else {
      if (leaf) {
        //color("red")
          leaf(size*entropy, seed);
      }
    }
}

module branch_three(size, depth, seed, widthBottom, widthTop, joint,
                  minGrowth, maxGrowth, leafScale,
                  leaf) {
  sizemod = rands(minGrowth, maxGrowth, 10, seed);
  entropy = rands(0.1, leafScale, seed+2)[0];
  rotations = rands(-10, 10, 10, seed);

  //color("green")
    trapezoid(h = size*sizemod[0], b1 = size*widthBottom, b2 = size*widthTop);

  translate([0, size*sizemod[0], 0])
    if (depth > 0) {
      union() {
        circle(r = size*joint);
        rotate([0, 0, 50+rotations[0]])
          trunk(size = size*.9*sizemod[0], depth = depth-1, seed = seed+2,
                widthBottom = widthBottom, widthTop = widthTop, joint = joint,
                minGrowth = minGrowth, maxGrowth = maxGrowth,
                leafScale = leafScale, leaf = leaf);
        rotate([0, 0, 0+rotations[1]])
          trunk(size = size*.9*sizemod[1], depth = depth-1, seed = seed+2,
                widthBottom = widthBottom, widthTop = widthTop, joint = joint,
                minGrowth = minGrowth, maxGrowth = maxGrowth,
                leafScale = leafScale, leaf = leaf);
        rotate([0, 0, -50+rotations[2]])
          trunk(size = size*.9*sizemod[2], depth = depth-1, seed = seed+3,
                widthBottom = widthBottom, widthTop = widthTop, joint = joint,
                minGrowth = minGrowth, maxGrowth = maxGrowth, ,
                leafScale = leafScale, leaf = leaf);
      }
    } else {
      if (leaf) {
        //color("red")
          leaf(size*entropy, seed);
      }
    }
}

```


[User]
Hey, I'm looking for an OpenSCAD design for a customizable round box with a lattice structure. I've seen some examples but I need something specific and fully parametric.

Here's what I need:

**Basic Parameters:**

*   I want to be able to select whether I want to generate just the box, just the lid, or both.
*   The box should have a specified *inside* width and height.
*   The lid should have a specified *outside* height. The lid's width should be automatically calculated based on the box width and a 'box to lid gap' parameter.
*   The box and lid walls should have a specified thickness.
*   There should be a density parameter to control how dense the lattice is, ranging from 0 (no lattice) to 1 (solid wall).

**Advanced Parameters:**

*   There should be a frame width, creating a solid edge at the top and bottom of both the box and lid.
*   The lattice should have a minimum horizontal spacing between lines, and the actual number of swirl lines should automatically be calculated based on the box's inner circumference and the desired spacing.
*   I need a gap parameter that will create a space between the outside of the box and the inside of the lid.
*   It would be nice to have an option for a build plate preview from Makerbot (none, Replicator 2, Replicator, or Thingomatic).

**Other Requirements:**

*   The file should be well-commented, for easy modification.
*   I'd also like it to use a library like BOSL2 for any relevant utilities.

Basically, I want a fully parametric round lattice box and lid, and the generated design should handle the complicated math behind the lattice generation for me. I am OK with the lattice design being a form of rotated/twisted polygon like in the example I've found. It was using linear_extrude for the twisting.

Could you create that for me?

[Assistant]
Customizable_Round_Lattice_Box.scad:
```
// Customizable Round Lattice Box
// Author: Alexander Smith
// License: CC BY <https://creativecommons.org/licenses/by/4.0/>
//

// This OpenSCAD file is formatted for use by the Makerbot Customizer.

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

use <utils/build_plate.scad>;

/* [Basic] */
parts = "both";			// [box, lid, both]

box_inside_width = 50;	// [0:0.5:300]
box_inside_height = 70;	// [0:0.5:300]

// The width is determined by the box size and "Box To Lid Gap" (under Advanced settings).
lid_outside_height = 15;	// [0:0.5:300]

// Thickness of the walls of the box and lid.
wall_thickness = 2;			// [0.1:0.1:20]

// Density of the walls, from 0 (no lattice at all) to 1 (solid walls instead of a lattice).
density = 0.2;				// [0:0.1:1.0]

/* [Advanced] */

// Width of the solid frame on all edges of the box and lid.
frame_width = 4;			// [0:0.1:20]

// Minimum horizontal distance between parallel lines of the lattice. (Will be rounded to the nearest value that divides evenly into the inner circumference.)
lattice_spacing = 5.2;		// [1:0.1:30]

// The lid width and length will be expanded to leave this much gap on all sides between the inside of the lid and the outside of the box.
box_to_lid_gap = 1;			// [0:0.1:5]

build_plate_preview = -1; // [-1: None, 0:Makerbot Replicator 2, 1: Makerbot Replicator, 2:Makerbot Thingomatic]

// Quality settings
$fs = 0.5;
$fa = 1;
layer_height = 0.5;

module _box_half_walls(height, inner_diameter, num_swirls, density, wall_thickness, layer_height, clockwise) {
    tW = wall_thickness;
    Ri = inner_diameter/2;
    Ro = Ri + tW;

    alpha = 360 / num_swirls;
    //echo(str("alpha=", alpha));

    perimeter  = 2*PI*(Ri + 0.5*tW);
    //echo(str("perimeter=", perimeter));
    S = perimeter * alpha / 360;
    //echo(str("S=", S));

    // tL = width of lines.
    // ('density' is the desired material density. 'd' is the calculated line width, accounting for the fact that the lines overlap.)
    density_fixed = max(0, min(1, density));
    tL = S * (1 - sqrt(1 - density_fixed));
    //echo(str("Lattice line width = ", tL, " for S=", S, ", density ", density_fixed));

    beta = 360*tL/perimeter;
    //echo(str("beta=", beta));
    dx = Ri*cos(beta);
    dy = Ri*sin(beta);
    linear_extrude(height = height, twist = (clockwise ? 1 : -1) * 360 *height / perimeter, slices = height / layer_height)
        for (i = [0:(num_swirls-1)]) {
            rotate([0, 0, i*alpha])
                polygon([
                    [Ri * cos(beta), -Ri * sin(beta)],
                    [(Ri + tW) * cos(beta), -(Ri + tW) * sin(beta)],
                    [(Ri + tW) * cos(beta), (Ri + tW) * sin(beta)],
                    [Ri * cos(beta), Ri * sin(beta)]
            ]);
        }
}

module box_walls(height, inner_diameter, num_swirls = 12, density = 0.3, wall_thickness = 1, layer_height = 0.1) {
    _box_half_walls(height, inner_diameter, num_swirls, density, wall_thickness, layer_height, true);
    _box_half_walls(height, inner_diameter, num_swirls, density, wall_thickness, layer_height, false);
}

module box_frame(height, inner_diameter, frame_thickness = 5, wall_thickness = 1) {
    cylinder(h=wall_thickness, d=(inner_diameter + 2*wall_thickness));

    difference() {
        cylinder(h=frame_thickness, d=(inner_diameter + 2*wall_thickness));
        translate([0, 0, -0.5])
            cylinder(h=frame_thickness+1, d=inner_diameter);
    }

    translate([0, 0, height - frame_thickness]) difference() {
        cylinder(h=frame_thickness, d=(inner_diameter + 2*wall_thickness));
        translate([0, 0, -0.5])
            cylinder(h=frame_thickness+1, d=inner_diameter);
    }
}

module cylinder_lattice_box(height, inner_diameter, num_swirls = 12, density = 0.3, wall_thickness = 1, frame_thickness = 5, layer_height = 0.1) {

    echo(str("outside = ", inner_diameter + 2*wall_thickness, ", ", height));
    echo(str("inside = ", inner_diameter, ", ", height - wall_thickness));

    box_walls(
        height = height, inner_diameter = inner_diameter,
        num_swirls = num_swirls, density = density,
        wall_thickness = wall_thickness, layer_height = layer_height);
    box_frame(
        height = height, inner_diameter = inner_diameter,
        frame_thickness = frame_thickness, wall_thickness = wall_thickness);
}

build_plate(build_plate_preview);

num_swirls = floor(0.5 + PI*box_inside_width/lattice_spacing);
//echo(str("num_swirls=", num_swirls));

if ((parts == "both") || (parts == "box")) {
    echo("Box dimensions:");
    cylinder_lattice_box(
        height = box_inside_height + wall_thickness,
        inner_diameter = box_inside_width,
        num_swirls = num_swirls,
        density = density,
        wall_thickness = wall_thickness,
        frame_thickness = frame_width,
        layer_height = layer_height
    );
}
if ((parts == "both") || (parts == "lid")) {
    echo("Lid dimensions:");
	translate( (box_inside_width + 2*wall_thickness + box_to_lid_gap + 5) * (parts == "both" ? [1, 0, 0] : [0, 0, 0]) )
    cylinder_lattice_box(
        height = lid_outside_height,
        inner_diameter = box_inside_width + 2*wall_thickness + box_to_lid_gap,
        num_swirls = num_swirls,
        density = density,
        wall_thickness = wall_thickness,
        frame_thickness = frame_width,
        layer_height = layer_height
    );
}

```


[User]
Hey, I'm looking to get a custom parametric OpenSCAD file (or set of files, if that's better) made for a spool adapter. Basically, it's a tapered cone shape that will fit into the center of a spool and allow it to be mounted on a rod.

Here are the core features I need:

*   **Tapered Cone Shape:** The main body should be a cone shape, with a specified height, a maximum diameter at the base, and a minimum diameter at the top.
*   **Center Hole:** There needs to be a central hole going all the way through, sized to fit a mounting rod.
*   **Optional Cutouts:** I'd like to be able to specify the number of cutouts around the cone's main body. These cutouts should be long, thin slots that follow the taper of the cone. The sizes of these cutouts should be derived from the other parameters (not absolute values).
*   **Optional Bearings:** It would be awesome if it could support either zero, one, or two bearings. If bearings are enabled, they will be recessed into the base and/or the top of the cone with a specified outer diameter and depth. If there are 2, they will be on opposite sides.

Here's what I would expect to be able to customize:

*   `Height`: Height of the tapered cone section.
*   `maxDia`: Maximum diameter of the cone's base.
*   `minDia`: Minimum diameter of the cone's top.
*   `rodDia`: Diameter of the central mounting rod hole.
*   `nCutouts`: Number of cutouts (or slots) around the cone.
*   `nBearings`: Number of bearings (0, 1, or 2).
*   `BearingOD`: Outer diameter of the bearing.
*   `BearingDepth`: Depth of the bearing recess.
*   `fudge`: A small allowance for the under side holes, particularly the bearing recess and central mounting hole.

For the cutouts, I need their size to be dependent on the main cone parameters; I'm thinking the width of the slots should be related to `minDia` and `maxDia`, with the height following the cone's taper. The positioning should be even around the circumference.

Could you generate a file (or set of files) for me that provides these features, I'd also really like you to use the BOSL2 library for this!

Thanks in advance.

[Assistant]
YASpoolCone.scad:
```
$fn=120;
Height = 24; // Height of the tappered section (less than 1/2 your spool width
maxDia = 60;
minDia = 24;
rodDia = 8;  // Mounting rod dia
nCutouts=6;

nBearings = 0; //0,1,2
BearingOD = 22;
BearingDepth = 7;

//Avanced
fudge = 0.2; // Allowance for underside holes

// Hidden
// These value are calculated from the user input
stepAngle = 360/nCutouts;
innerCutDia = minDia/nCutouts;
outerCutDia = maxDia/nCutouts;

// Make the Cone
difference(){
  union(){
    cylinder(1,d=maxDia);
    translate([0,0,1]){ cylinder(Height,d1=maxDia,d2=minDia); }
  }
  // Centre rod
  cylinder(Height+1,d=rodDia+fudge);
  // Cutouts for the main cone (if any)
    if(nCutouts > 0){
      for(i=[0:stepAngle:360]){
        rotate(i){
          translate([minDia/2+innerCutDia/2,0,0]){
            hull() {
              translate([maxDia/2-minDia/2,0,0]) cylinder(Height+1,d=outerCutDia);
              cylinder(Height+1,d=innerCutDia);
            }
          }
        }
     }
  }
  // Cutouts for Bearing/s (if any)
  if(nBearings > 0){
    cylinder(BearingDepth,d=BearingOD+fudge);
    if(nBearings == 2) {
      translate([0,0,Height+1-BearingDepth]){ cylinder(BearingDepth,d=BearingOD+fudge); }
    }
  }
}
```


[User]
Hey, I'm looking for a parametric design for a ceiling hook, something I can easily customize. I need to be able to adjust the hook's diameter, its thickness, and the size of the screw holes. I’d also like to control the screw head dimensions.

Ideally, the design should have a mounting plate with two screw holes for attaching it to the ceiling. I want the hook to project out from the mounting plate at a 90-degree angle and have a rounded end, like in the example SCAD file I’m referencing. The mounting plate itself should have two circles that are cut away.

Also, it'd be great if there was a way to switch between a standard hook shape and a rounded, circular hook profile. It seems like that would be a fun option.

For the screw holes, it should be a countersunk design. I think I will be using standard wood screws, so that's what it will need to accept.

I’m not sure what libraries would be best for this, but I want it to be easily editable, so I think the design should use OpenSCAD. The example I sent is great, but I need something that is generated from scratch.

[Assistant]
ceiling_hook4.scad:
```
// Parametric ceiling hook
//
// Designed by Timothy_McPrint (https://www.thingiverse.com/Timothy_McPrint)
// Date: 2017-10-11
// This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License
// (https://creativecommons.org/licenses/by-nc-sa/4.0/)

// Diameter of the hook (the inner diameter will be caluclated 'diameter-thickness', and the outer one 'diameter+thickness'):
diameter = 140;
// The thickness of the hook and the thickness and deept of the mounting plate:
thickness = 15;

// Diameter of the screw hole:
screw_diameter = 5.4;
// Diameter of the screw head:
screw_head_diameter = 9.0;
// Height of the screw head (countersunk screw!):
screw_head_height = 2.5;

// Draw a round shaped hook? (This feature requires OpenSCAD with version 2016.XX or higher!)
rotated_hook = false;

$fn=150;

//The hook:
if ( rotated_hook == false )
{
	rotate( [0 , 0, 90 ] )
		difference()
		{
			cylinder( h=thickness, d=diameter+thickness, center=true );
			cylinder( h=thickness+0.1, d=diameter-thickness, center=true );
			translate( [ 0, 0,-thickness/2-0.1 ] )
				cube( [ diameter, diameter, thickness+0.2 ] );
		}
	//The round edge at the end of the hook:
	translate( [ 0, diameter/2, 0 ] )
		cylinder( h=thickness, d=thickness, center=true );
}
else
{
	//A variation of the hook with a circular shape:
	rotate( [ 0, 0, 180 ] )
		rotate_extrude( convexity=10, angle=270 )
			translate( [diameter/2, 0, 0] )
				circle( d=thickness );
}

//The mounting plate:
difference()
{
	translate( [ -diameter/2-thickness/2, 0, 0 ] )
		rotate( [ 0, 90, 0 ] )
			linear_extrude( height=thickness )
				hull()
				{

					translate( [ 0, diameter/2+14, 0 ] )
						circle( thickness/2 );
					translate( [ 0, -diameter/2-14, 0 ] )
							circle( thickness/2 );
				}
	//The two holes for the screws:
	screw( -diameter/2+thickness/2, diameter/2+12 );
	screw( -diameter/2+thickness/2, -diameter/2-12 );
}

module screw( posx, posy )
{
	translate( [ posx, posy, 0 ] )
		rotate( [ 0, 270, 0 ] )
		{
			cylinder( d1=screw_head_diameter, d2=screw_diameter, h=screw_head_height, center=true );
			cylinder( d=screw_diameter, h=thickness+0.1 );
		}
}

```


[User]
Hey, I'm looking to create some customizable vases using OpenSCAD, and I found this cool thing on Thingiverse called "Rippled Vase Factory" that I'd like to use as a starting point. It's got a lot of neat options already, but I want to be able to make some changes.

Basically, I want to generate vases that have a rippled tile pattern, and the following parameters should be customizable:

*   **Shape:** I need to be able to choose from a few base shapes: cylinder, a couple of different vase shapes ("vase1" and "vase2" in the original), a glass shape, a bowl shape, and a couple of cup shapes ("cup" and "cup2"), and a simple cone. Each shape should have its own unique profile that determines how the radius of the vase changes with height.
*   **Tile Offset:** I want to be able to choose how the tiles are arranged. The original has "no offset" (all tiles aligned vertically), an "offsetz" option (where every other row is offset), and a "diagonal" offset.
*   **Radius:** The overall radius of the vase should be adjustable.
*   **Ripples:** I want to control the number of ripples in each tile.
*   **Ripple Size:** The depth or thickness of the ripples should also be adjustable.
*   **Vertical Tiles:** The number of tile rows in the vertical direction should be a parameter.
*   **Horizontal Tiles:** The number of tiles going around the vase should also be configurable.

I want to ensure that I can generate both low-poly previews (for faster rendering while designing) and high-poly versions for printing, similar to the original design. I'll be printing in Spiral-Vase mode so it doesn't need to be solid. The original thingy uses `polyhedron`, so I suppose you should too.

Could you write an OpenSCAD file (or set of files, if it makes more sense) to handle this, with all of those parameters as customizable values? I don't need any external libraries.

[Assistant]
vase_customizer.scad:
```
/*
    Yet Another Vase Customizer

    Fernando Jerez 2017.

    License CC-Attribution

*/

// Use 'preview' for fast render
part = "preview"; // [preview:Low poly (fast render), print: High detail (slow render, for print)]

// Style / Shape
shape = "vase1"; // [cylinder: Cylinder, vase1:Vase, vase2:Vase 2, glass: Glass, bowl:Bowl, cup: Cup, cup2: Cup 2, cone: Cone ]

// Offset
offs="no"; // [no: All tiles aligned, offsetz: Alternate Rows, diagonal: Diagonal tiles]

// Radius
radius= 60; // [30:100]

// Number of ripples in every tile
ripples  = 5; // [1:15]

// Ripple Thickness
ripple_size = 1.5; // [1:0.5:4]

// Tiles in Vertical (rows)
znum = 3; // [1:10]

// Tiles in Horizontal (around the vase)
xnum = 5;  // [1:20]

/* [Hidden] */

altura = 180; // z-steps
step = (part=="preview")?4:1; // resolution in Z (1 is the best and slower)

sides = 360; // Don't touch!

puntos = [
    for(z = [0:step:altura])
        for(i = [0:sides-1])
            let(

                // shape
                zrad  = (shape=="cylinder") ? 1 :
                        (shape=="vase1")    ? 0.7+ 0.4*sin(z*1.9) :
                        (shape=="vase2")    ? 0.6+ 0.4*pow(sin(z+60),2) :
                        (shape=="glass")    ? 0.6+ 0.4*pow(sin(z*0.7-30),2) :
                        (shape=="cup")      ? 0.65+ 0.3 * cos(z*2+35) :
                        (shape=="cup2")     ? 0.6+ 0.35*cos(180 - z+50)*sin(180-z*2.5+45) :
                        (shape=="bowl")     ? 0.6+ 0.4 * sin(z*0.5) :
                        cos(z*0.5),

                // Alternate tiles offset
                offz = (offs=="offsetz") ? 90 * floor(z/ (180/znum)) : 0,

                // waves/ripples

                zrad2 =  (offs=="diagonal") ? ripple_size * cos( ripples * ( 180*sin((z-i)*znum) ) * sin((z+i)*xnum*0.5))
                                            : ripple_size * cos( ripples * (180*sin(z*znum))*sin(i*xnum*0.5 +offz) ) ,
                // vertex
                r     = zrad2 + zrad* radius,
                px    = r*cos(i),
                py    = r*sin(i)

            )

            [px,py,z]
];

caras = concat(
    [
    for(z = [0:(altura/step)-1])
        for(s = [0:sides-1])
            let(
                // clockwise from left-down corner
                f1 = s + sides*z,
                f2 = s + sides*(z+1),
                f3 = ((s+1) % sides) + sides*(z+1),
                f4 = ((s+1) % sides) + sides*z
            )

            [f1,f2,f3]

    ],
    [
    for(z = [0:(altura/step)-1])
        for(s = [0:sides-1])
            let(
                // clockwise from left-down corner
                f1 = s + sides*z,
                f2 = s + sides*(z+1),
                f3 = ((s+1) % sides) + sides*(z+1),
                f4 = ((s+1) % sides) + sides*z
            )

            [f3,f4,f1]

    ],
    [[ for(s = [sides-1:-1:0]) (altura/step)*(sides) + s]], //top
    [[ for(s = [0:sides-1]) s]] //bottom

 );
 scale([1,1,(shape=="bowl")?0.33:1])
 polyhedron (points=puntos,faces = caras);
//echo (caras);

```


[User]
Hi! I'm looking for some help creating an OpenSCAD design for spinning wheel bobbins. I've been making some in Tinkercad, but I'd really like a parametric OpenSCAD design that lets me tweak the dimensions easily. I'd prefer it if the bobbin was designed in modular pieces that fit together snugly, and are easy to print. I’ve included the basic functionality and structure I’d like, taken from some existing SCAD code I found, along with some notes about how I'd like it all to function.

Here’s a breakdown of what I need:

**Overall Design:**

*   The bobbin will be made up of several modular pieces: a core, two end pieces (front and back), and potentially multiple whorls on each end. This modular design should follow the pattern of the existing code.
*   I'd like a parameter to select which piece(s) to display, or “all” of them at once.

**Core Parameters:**

*   `mandrel_diameter`: The diameter of the mandrel the bobbin will be mounted on.
*   `core_visible_length`: The length of the bobbin core between the two end pieces.
*   `core_diameter`: The outer diameter of the bobbin core.
*   `core_recess_depth`: The depth the bobbin core inserts into the end pieces.
*   `core_wall_thickness`: Wall thickness of the core.
*   `core_allowance`: Allowance for the core hole.
* `mandrel_allowance`: Allowance for the mandrel hole.

**Front and Back End Parameters:**

*   `front_end_diameter`/ `back_end_diameter`: The inner diameters of the front and back end pieces, where the core is inserted.
*   `front_end_height`/ `back_end_height`: The thicknesses of the front and back end pieces.
*   `front_end_groove_height`/`back_end_groove_height`: Height (thickness) of the groove on the inside face of the front/back end (0 for none).
*   `front_end_groove_depth`/`back_end_groove_depth`: Depth of the groove from the outside diameter on the front/back end (0 for none).
*   `front_end_extruding_distance`/`back_end_extruding_distance`: The amount that the bushing protrudes from the end piece.

**Whorl Parameters (Front and Back, up to two on each end):**

*   `front_end_whorl1_height`/`back_end_whorl1_height`:  Height of the first whorl on the front/back end (0 if none).
*   `front_end_whorl1_diameter`/`back_end_whorl1_diameter`: Diameter of the first whorl on the front/back end.
*   `front_end_whorl1_groove_center`/`back_end_whorl1_groove_center`:  Distance from the inner face to the center of the groove on the first whorl on the front/back end.
*   `front_end_whorl1_groove_height`/`back_end_whorl1_groove_height`: Thickness of the groove on the first whorl on the front/back end.
*   `front_end_whorl1_groove_depth`/`back_end_whorl1_groove_depth`: Depth of the groove on the first whorl on the front/back end.

*   `front_end_whorl2_height`/`back_end_whorl2_height`:  Height of the second whorl on the front/back end (0 if none).
*   `front_end_whorl2_diameter`/`back_end_whorl2_diameter`: Diameter of the second whorl on the front/back end.
*   `front_end_whorl2_groove_center`/`back_end_whorl2_groove_center`:  Distance from the inner face to the center of the groove on the second whorl on the front/back end.
*   `front_end_whorl2_groove_height`/`back_end_whorl2_groove_height`: Thickness of the groove on the second whorl on the front/back end.
*   `front_end_whorl2_groove_depth`/`back_end_whorl2_groove_depth`: Depth of the groove on the second whorl on the front/back end.

**Advanced Parameters:**

*   `whorl_groove_recess_depth`: Distance one piece of a whorl fits into another.
*   `whorl_groove_allowance`: Allowance for the whorl groove recess.
*  `whorl_support_diameter`: Diameter of the support shaft for the whorls and any extrusion
* `whorl_support_allowance`: Allowance for the whorl support shaft bore.
*  `cylinder_tapering_factor`: Factor to use when tapering the cylinders.

**Modules:**
The existing code includes a few modules that I’d like to see re-created, specifically:

*   `whorl_inside()`: Generates the inside piece of a whorl with a groove.
*  `whorl_outside()`: Generates the outside piece of a whorl with a groove.
* `cylinder2()`: A module for generating slightly tapered cylinders.

**General Requirements:**

*   I'd like the design to be modular, so that the various pieces can be easily assembled in real life.
*   The pieces should fit together snugly, but with enough allowance to print well.
*   The design should use difference() statements to create holes and recesses, following the existing code's pattern.
*   The code should include a way to display individual parts as needed, or all parts at once.

I think that covers everything. Let me know if you have any questions, or if I can clarify anything. I'd really appreciate the help in getting this all set up!

[Assistant]
bobbin_v1d.scad:
```
/* [Parts] */

// Select part to display (all will be printed)
part = "all"; //[core: Core, fe1: Front End 1, fe2: Front End 2, fw1a: Front End Whorl1a, fw1b: Front End Whorl1b, fw2a: Front End Whorl2a, fw2b: Front End Whorl2b, be1: Back End 1, be2: Back End 2, bw1a: Back End Whorl1a, bw1b: Back End Whorl1b, bw2a: Back End Whorl2a, bw2b: Back End Whorl2b, all: All Parts]

/* [Core and Mandrel] */

// Mandrel diameter
mandrel_diameter = 8; // [4:0.1:30]

// Length of the bobbin core from the inside face of one end to the other
core_visible_length = 109.5;  // [50:0.1:220]

// Diameter of the bobbin core
core_diameter = 22;  // [8:0.1:50]

// Length the bobbin core is inserted into the facing ends
core_recess_depth = 3;  // [2:0.1:20]

/* [Front End Main] */

// Diameter of inside front end
front_end_diameter = 79; // [50:0.1:200]

// Thickness of the inside front end
front_end_height = 6;  // [4:0.1:30]

// Groove thickness on inside front end (0 for none)
front_end_groove_height = 0;  // [0:0.1:4]

// Groove depth on inside front end from the outside diameter (0 for none)
front_end_groove_depth = 0; // [0:0.1:30]

// Extruding Bushing Distance
front_end_extruding_distance = 3.4; // [0:0.1:50]

/* [Front End Whorl #1] */

// Is there a first whorl on the front end and if so, how thick is it?
front_end_whorl1_height = 11.5; // [0:0.1:50]

// Diameter of the first whorl on the front end
front_end_whorl1_diameter = 32.0; // [0:0.1:200]

// Distance of the center of the groove on the first whorl from its inside face
front_end_whorl1_groove_center = 8.5; // [0:0.1:50]

// Thickness of the groove on the first whorl
front_end_whorl1_groove_height = 1.5; // [0:0.1:4]

// Depth of the groove on the first whorl
front_end_whorl1_groove_depth = 2.3; // [0:0.1:30]

/* [Front End Whorl #2] */

// Is there a second whorl on the front end and if so, how thick is it?
front_end_whorl2_height = 0; // [0:0.1:50]

// Diameter of the second whorl on the front end
front_end_whorl2_diameter = 0; // [0:0.1:200]

// Distance of the center of the groove on the second whorl from its inside face
front_end_whorl2_groove_center = 0; // [0:0.1:50]

// Thickness of the groove on the second whorl
front_end_whorl2_groove_height = 0; // [0:0.1:4]

// Depth of the groove on the second whorl
front_end_whorl2_groove_depth = 0; // [0:0.1:30]

/* [Back End Main] */

// Diameter of inside back end
back_end_diameter = 79; // [50:0.1:200]

// Thickness of the inside back end
back_end_height = 6; // [4:0.1:30]

// Groove thickness on inside back end (0 for none)
back_end_groove_height = 0;  // [0:0.1:4]

// Groove depth on inside back end (0 for none)
back_end_groove_depth = 0; // [0:0.1:200]

// Extruding Bushing Distance
back_end_extruding_distance = 3.4; // [0:0.1:50]

/* [Back End Whorl #1] */

// Is there a first whorl on the back end and if so, how thick is it?
back_end_whorl1_height = 11.5; // [0:0.1:50]

// Diameter of the first whorl on the back end
back_end_whorl1_diameter = 57.2; // [0:0.1:200]

// Distance of the center of the groove on the first whorl from its inside face
back_end_whorl1_groove_center = 6.6; // [0:0.1:50]

// Thickness of the groove on the first whorl
back_end_whorl1_groove_height = 2; // [0:0.1:4]

// Depth of the groove on the first whorl
back_end_whorl1_groove_depth = 2.3; // [0:0.1:30]

/* [Back End Whorl #2] */

// Is there a second whorl on the back end and if so, how thick is it?
back_end_whorl2_height = 0; // [0:0.1:50]

// Diameter of the second whorl on the back end
back_end_whorl2_diameter = 0; // [0:0.1:200]

// Distance of the center of the groove on the second whorl from its inside face
back_end_whorl2_groove_center = 0; // [0:0.1:50]

// Thickness of the groove on the second whorl
back_end_whorl2_groove_height = 0; // [0:0.1:4]

// Depth of the groove on the second whorl
back_end_whorl2_groove_depth = 0; // [0:0.1:30]

/* [Advanced] */

// Bobbin core wall thickness
core_wall_thickness = 5; // [1:0.1:30]

// Bore hole for core is larger than core diameter by this amount
core_allowance = 0.3; // [0:0.1:3]

// Bore hole for mandrel is larger than mandrel diameter by this amount
mandrel_allowance = 0.3;  // [0:0.1:3]

// Distance one piece of a whorl fits into another
whorl_groove_recess_depth = 1.5; // [0:0.1:3]

// Bore hole for groove recess is larger than the groove diameter by this amount
whorl_groove_allowance = 0.4;  // [0:0.1:3]

// Diameter of the support shaft for the whorls and any extrusion
whorl_support_diameter = 16; // [10:0.1:30]

// The bore hole for support shafts are larger than the support diameter by this amount
whorl_support_allowance = 0.3; // [0:0.1:3]

// Cylinder tapering factor
cylinder_tapering_factor = 3; // [0:0.1:10]

module whorl_inside(wh, wd, gh, gc, gd)
{
    difference()
    {
        union()
        {
            cylinder2(h=gc-(gh/2), d=wd);
            translate([0,0,gc-(gh/2)])
                cylinder(h=gh+whorl_groove_recess_depth, d=wd-(2*gd));
         }
         cylinder(h=gc+(gh/2)+whorl_groove_recess_depth, d=whorl_support_diameter+whorl_support_allowance);
    }
}

module whorl_outside(wh, wd, gh, gc, gd)
{
    difference()
    {
        cylinder2(h=wh-(gc+(gh/2)), d=wd);
        cylinder(h=whorl_groove_recess_depth,d=wd-(2*gd)+whorl_groove_allowance);
        cylinder(h=wh-(gc-(gh/2)), d=whorl_support_diameter+whorl_support_allowance);
    }
}

module cylinder2(h,d)
{
    if (h>0)
    {
        translate([0,0,h/2])
        {
            difference()
            {
                resize(newsize=[d,d,d/(cylinder_tapering_factor/h*4)])
                    sphere(d=d);
                translate([0,0,h/2])
                    cylinder(h=d/(cylinder_tapering_factor/h*4),d=d);
                rotate(a=[0,180,0])
                    translate([0,0,h/2])
                        cylinder(h=d/(cylinder_tapering_factor/h*4),d=d);
            }
        }
    }
}

core_bore_diameter = core_diameter - (2*core_wall_thickness);
$fn = 128;

// fw2b, fw2a, fw1b, fw1a, fe2, fe1, core, be1, be2, bw1a, bw1b, bw2a, bw2b

fw2b_i = 0;
fw2a_i = 1;
fw1b_i = 2;
fw1a_i = 3;
fe2_i = 4;
fe1_i = 5;
core_i = 6;
be1_i = 7;
be2_i = 8;
bw1a_i = 9;
bw1b_i = 10;
bw2a_i = 11;
bw2b_i = 12;

part_height = [
    front_end_whorl2_height == 0 ? 0 : front_end_whorl2_height - (front_end_whorl2_groove_center+(front_end_whorl2_groove_height/2)),

    front_end_whorl2_height == 0 ? 0 : front_end_whorl2_groove_center+(front_end_whorl2_groove_height/2)+whorl_groove_recess_depth,

    front_end_whorl1_height == 0 ? 0 : front_end_whorl1_height - (front_end_whorl1_groove_center+(front_end_whorl1_groove_height/2)),

    front_end_whorl1_height == 0 ? 0 : front_end_whorl1_groove_center+(front_end_whorl1_groove_height/2)+whorl_groove_recess_depth,

    front_end_groove_height == 0 ? 0 : (front_end_height-front_end_groove_height)/2,

    front_end_groove_height == 0 ? front_end_height : (front_end_height+front_end_groove_height)/2,

    core_visible_length+(2*core_recess_depth),

    back_end_groove_height == 0 ? back_end_height : (back_end_height-back_end_groove_height)/2 + back_end_groove_height,

    back_end_groove_height == 0 ? 0 : (back_end_height-back_end_groove_height)/2,

    back_end_whorl1_height == 0 ? 0 : back_end_whorl1_groove_center+(back_end_whorl1_groove_height/2),

    back_end_whorl1_height == 0 ? 0 : back_end_whorl1_height - (back_end_whorl1_groove_center+(back_end_whorl1_groove_height/2)),

    back_end_whorl2_height == 0 ? 0 : back_end_whorl2_groove_center+(back_end_whorl2_groove_height/2),

    back_end_whorl2_height == 0 ? 0 : back_end_whorl2_height - (back_end_whorl2_groove_center+(back_end_whorl2_groove_height/2)),

];

part_offset = [
    front_end_whorl2_height == 0 ? 0 : part_height[0] - whorl_groove_recess_depth,

    front_end_whorl2_height == 0 ? 0 : part_height[1],

    front_end_whorl1_height == 0 ? 0 : part_height[2] - whorl_groove_recess_depth,

    front_end_whorl1_height == 0 ? 0 : part_height[3],

    front_end_groove_height == 0 ? 0 : part_height[4] - whorl_groove_recess_depth,

    part_height[5] - core_recess_depth,

    part_height[6] - core_recess_depth,

    part_height[7],

    back_end_groove_height == 0 ? 0 : part_height[8],

    back_end_whorl1_height == 0 ? 0 : part_height[9],

    back_end_whorl1_height == 0 ? 0 : part_height[10],

    back_end_whorl2_height == 0 ? 0 : part_height[11],

    back_end_whorl2_height == 0 ? 0 : part_height[12]
];

part_start_height = [
    part_height[fw2b_i],
    part_height[fw2a_i]+part_offset[fw2b_i],
    part_height[fw1b_i]+part_offset[fw2b_i]+part_offset[fw2a_i],
    part_height[fw1a_i]+part_offset[fw2b_i]+part_offset[fw2a_i]+part_offset[fw1b_i],
    part_height[fe2_i] +part_offset[fw2b_i]+part_offset[fw2a_i]+part_offset[fw1b_i]+part_offset[fw1a_i],
    part_height[fe1_i] +part_offset[fw2b_i]+part_offset[fw2a_i]+part_offset[fw1b_i]+part_offset[fw1a_i]+part_offset[fe2_i],

    part_offset[fw2b_i]+part_offset[fw2a_i]+part_offset[fw1b_i]+part_offset[fw1a_i]+part_offset[fe2_i]+part_offset[fe1_i],
    part_offset[fw2b_i]+part_offset[fw2a_i]+part_offset[fw1b_i]+part_offset[fw1a_i]+part_offset[fe2_i]+part_offset[fe1_i]+part_offset[core_i],
    part_offset[fw2b_i]+part_offset[fw2a_i]+part_offset[fw1b_i]+part_offset[fw1a_i]+part_offset[fe2_i]+part_offset[fe1_i]+part_offset[core_i]+part_offset[be1_i],
    part_offset[fw2b_i]+part_offset[fw2a_i]+part_offset[fw1b_i]+part_offset[fw1a_i]+part_offset[fe2_i]+part_offset[fe1_i]+part_offset[core_i]+part_offset[be1_i]+part_offset[be2_i],
    part_offset[fw2b_i]+part_offset[fw2a_i]+part_offset[fw1b_i]+part_offset[fw1a_i]+part_offset[fe2_i]+part_offset[fe1_i]+part_offset[core_i]+part_offset[be1_i]+part_offset[be2_i]+part_offset[bw1a_i],
    part_offset[fw2b_i]+part_offset[fw2a_i]+part_offset[fw1b_i]+part_offset[fw1a_i]+part_offset[fe2_i]+part_offset[fe1_i]+part_offset[core_i]+part_offset[be1_i]+part_offset[be2_i]+part_offset[bw1a_i]+part_offset[bw1b_i],
    part_offset[fw2b_i]+part_offset[fw2a_i]+part_offset[fw1b_i]+part_offset[fw1a_i]+part_offset[fe2_i]+part_offset[fe1_i]+part_offset[core_i]+part_offset[be1_i]+part_offset[be2_i]+part_offset[bw1a_i]+part_offset[bw1b_i]+part_offset[bw2a_i]
];

// core
if ((part == "core") || (part == "all"))
{
    translate([0, 0, part == "all" ? part_start_height[core_i] : 0])
    {
        difference()
        {
        cylinder(h=core_visible_length+(2*core_recess_depth), d=core_diameter);
        cylinder(h=core_visible_length+(2*core_recess_depth), d=core_bore_diameter);
        }
    }
}

// front end
if (front_end_groove_height == 0)
{ // no groove on front end main
    if ((part == "fe1") || (part == "all"))
    {
        translate([0,0,part == "all" ? part_start_height[fe1_i] : 0])
        rotate(a=[0,part == "all" ? 180 : 0,0])
        {
            difference()
            {
                union()
                {
                    cylinder2(h=front_end_height, d=front_end_diameter);
                    translate([0,0,front_end_height])
                        cylinder(h=front_end_whorl1_height+front_end_whorl2_height+front_end_extruding_distance,d=whorl_support_diameter);

                    difference()
                    {
                        cylinder(h=front_end_height+front_end_whorl1_height+front_end_whorl2_height+front_end_extruding_distance,d=whorl_support_diameter);
                        cylinder(h=front_end_height+front_end_whorl1_height+front_end_whorl2_height+front_end_extruding_distance,d=mandrel_diameter+mandrel_allowance);
                    }
                }
                cylinder(h=core_recess_depth, d=core_diameter+core_allowance);
                cylinder(h=front_end_height+front_end_whorl1_height+front_end_whorl2_height+front_end_extruding_distance, d=mandrel_diameter+
        mandrel_allowance);
            }
        }
    }

    if (part == "fe2")
    {
        linear_extrude(height=1)
            text("unused");
    }
}
else
{ // groove on front end main

    // inner piece
    if ((part == "fe1") || (part == "all"))
    {
        translate([0,0,part == "all" ? part_start_height[fe1_i] : 0])
        rotate(a=[0,part == "all" ? 180 : 0,0])
        {
            difference()
            {
                union()
                {
                    cylinder2(h=(front_end_height-front_end_groove_height)/2, d=     front_end_diameter);
                    cylinder(h=(front_end_height-front_end_groove_height)/2 + front_end_groove_height + whorl_groove_recess_depth, d=front_end_diameter-(front_end_groove_depth*2));
                    cylinder(h=front_end_height + front_end_whorl1_height+front_end_whorl2_height+front_end_extruding_distance,d=whorl_support_diameter);
                }
                cylinder(h=front_end_height + front_end_whorl1_height+front_end_whorl2_height+front_end_extruding_distance, d=mandrel_diameter+
        mandrel_allowance);
                cylinder(h=core_recess_depth, d=core_diameter+core_allowance);
            }
        }
    }

    // outer piece
    if ((part == "fe2") || (part == "all"))
    {
        translate([0,0,part == "all" ? part_start_height[fe2_i] : 0])
        rotate(a=[0,part == "all" ? 180 : 0,0])
        {
            difference()
            {
                cylinder2(h=(front_end_height-front_end_groove_height)/2, d=front_end_diameter);
                cylinder(h=whorl_groove_recess_depth,d=front_end_diameter-(front_end_groove_depth*2)+whorl_groove_allowance);
                cylinder(h=(front_end_height-front_end_groove_height)/2, d=whorl_support_diameter+whorl_support_allowance);
            }
        }
    }
}

if (front_end_whorl1_height != 0)
{
// front end whorl1a
    if ((part == "fw1a") || (part == "all"))
    {
        translate([0,0,part == "all" ? part_start_height[fw1a_i] : 0])
        rotate(a=[0,part == "all" ? 180 : 0,0])
            whorl_inside(front_end_whorl1_height, front_end_whorl1_diameter, front_end_whorl1_groove_height, front_end_whorl1_groove_center, front_end_whorl1_groove_depth);
    }

// front end whorl1b
    if ((part == "fw1b") || (part == "all"))
    {
        translate([0,0,part == "all" ? part_start_height[fw1b_i] : 0])
        rotate(a=[0,part == "all" ? 180 : 0,0])
            whorl_outside(front_end_whorl1_height, front_end_whorl1_diameter, front_end_whorl1_groove_height, front_end_whorl1_groove_center, front_end_whorl1_groove_depth);
    }
}
else if ((part == "fw1a") || (part == "fw1b"))
{
    linear_extrude(height=1)
        text("unused");
}

if (front_end_whorl2_height != 0)
{
// front end whorl2a
    if ((part == "fw2a") || (part == "all"))
    {
        translate([0,0,part == "all" ? part_start_height[fw2a_i] : 0])
        rotate(a=[0,part == "all" ? 180 : 0,0])
            whorl_inside(front_end_whorl2_height, front_end_whorl2_diameter, front_end_whorl2_groove_height, front_end_whorl2_groove_center, front_end_whorl2_groove_depth);
    }

// front end whorl2b
    if ((part == "fw2b") || (part == "all"))
    {
        translate([0,0,part == "all" ? part_start_height[fw2b_i] : 0])
        rotate(a=[0,part == "all" ? 180 : 0,0])
            whorl_outside(front_end_whorl2_height, front_end_whorl2_diameter, front_end_whorl2_groove_height, front_end_whorl2_groove_center, front_end_whorl2_groove_depth);
    }
}
else if ((part == "fw2a") || (part == "fw2b"))
{
    linear_extrude(height=1)
        text("unused");
}

// back end
if (back_end_groove_height == 0)
{ // no groove on back end main
    if ((part == "be1") || (part == "all"))
    {
        translate([0,0,part == "all" ? part_start_height[be1_i] : 0])
        {
            difference()
            {
                union()
                {
                    cylinder2(h=back_end_height, d=back_end_diameter);
                    cylinder(h=back_end_height+ back_end_whorl1_height+back_end_whorl2_height+back_end_extruding_distance,d=whorl_support_diameter);
                    difference()
                    {
                        cylinder(h=back_end_height+back_end_whorl1_height+back_end_whorl2_height+back_end_extruding_distance,d=whorl_support_diameter);
                        cylinder(h=back_end_height+back_end_whorl1_height+back_end_whorl2_height+back_end_extruding_distance,d=mandrel_diameter+mandrel_allowance);
                    }
                }
                cylinder(h=core_recess_depth, d=core_diameter+core_allowance);
                cylinder(h=back_end_height+back_end_whorl1_height+back_end_whorl2_height+back_end_extruding_distance, d=mandrel_diameter+
        mandrel_allowance);
            }
        }
    }
    if (part == "be2")
    {
        linear_extrude(height=1)
            text("unused");
    }
}
else
{ // groove on back end main

    // inner piece
    if ((part == "be1") || (part == "all"))
    {
        translate([0,0,part == "all" ? part_start_height[be1_i] : 0])
        {
            difference()
            {
                union()
                {
                    cylinder2(h=(back_end_height-back_end_groove_height)/2, d=back_end_diameter);
                    cylinder(h=(back_end_height-back_end_groove_height)/2 + back_end_groove_height + whorl_groove_recess_depth, d=back_end_diameter-(back_end_groove_depth*2));
                    cylinder(h=back_end_height + back_end_whorl1_height+back_end_whorl2_height+back_end_extruding_distance,d=whorl_support_diameter);
                }
                cylinder(h=back_end_height + back_end_whorl1_height+back_end_whorl2_height+back_end_extruding_distance, d=mandrel_diameter+mandrel_allowance);
                cylinder(h=core_recess_depth, d=core_diameter+core_allowance);

            }
        }
    }

    // outer piece
    if ((part == "be2") || (part == "all"))
    {
        translate([0,0,part == "all" ? part_start_height[be2_i] : 0])
        {
            difference()
            {
                cylinder2(h=(back_end_height-back_end_groove_height)/2, d=back_end_diameter);
                cylinder(h=whorl_groove_recess_depth,d=back_end_diameter-(back_end_groove_depth*2)+whorl_groove_allowance);
                cylinder(h=(back_end_height-back_end_groove_height)/2, d=whorl_support_diameter+whorl_support_allowance);
            }
        }
    }
}

if (back_end_whorl1_height != 0)
{
// back end whorl1a
    if ((part == "bw1a") || (part == "all"))
    {
        translate([0,0,part == "all" ? part_start_height[bw1a_i] : 0])
            whorl_inside(back_end_whorl1_height, back_end_whorl1_diameter, back_end_whorl1_groove_height, back_end_whorl1_groove_center, back_end_whorl1_groove_depth);
    }

// back end whorl1b
    if ((part == "bw1b") || (part == "all"))
    {
        translate([0,0,part == "all" ? part_start_height[bw1b_i] : 0])
            whorl_outside(back_end_whorl1_height, back_end_whorl1_diameter, back_end_whorl1_groove_height, back_end_whorl1_groove_center, back_end_whorl1_groove_depth);
    }

}
else if ((part == "bw1a") || (part == "bw1b"))
{
    linear_extrude(height=1)
        text("unused");
}

if (back_end_whorl2_height != 0)
{
    if ((part == "bw2a") || (part == "all"))
    {
// back end whorl2a
        translate([0,0,part == "all" ? part_start_height[bw2a_i] : 0])
            whorl_inside(back_end_whorl2_height, back_end_whorl2_diameter, back_end_whorl2_groove_height, back_end_whorl2_groove_center, back_end_whorl2_groove_depth);
    }

// back end whorl2b
    if ((part == "bw2b") || (part == "all"))
    {
        translate([0,0,part == "all" ? part_start_height[bw2b_i] : 0])
            whorl_outside(back_end_whorl2_height, back_end_whorl2_diameter, back_end_whorl2_groove_height, back_end_whorl2_groove_center, back_end_whorl2_groove_depth);
    }
}
else if ((part == "bw2a") || (part == "bw2b"))
{
    linear_extrude(height=1)
        text("unused");
}
```


[User]
Hey, I'm looking to design a custom drawer insert for my small parts cabinet, and I'd like to use OpenSCAD so I can easily adjust it later. I've seen some examples but I'd like to create one from scratch that can be customized.

Here are the key features I'm after:

*   **Parametric Design:** Everything should be driven by variables, so I can adjust the dimensions, number of dividers, and other features easily.
*   **Drawer Dimensions:** I need to be able to specify the inner width, length, and height of the drawer, including a "stepped" height where the lower part of the drawer is shorter than the top part.
*   **Horizontal and Vertical Dividers:**  The insert should have adjustable numbers of horizontal and vertical dividers. It should be able to do both "full height" dividers (reaching the top of the drawer) and "half height" dividers (reaching only the lower stepped part of the drawer).
*   **Wall Thickness:**  I need to be able to control the wall thickness of the dividers.
*    **Cutouts:**  I'd like to have the option for cutouts on the front and back of the insert. I should be able to specify their width, depth, and offset from the side of the insert.
*   **Clean Edges**: I want clean edges. Ideally, the final part won't have stray parts of the subtraction objects leftover.
*   **No Libraries**: I don't want to use any external libraries, please.

Could you help me create an OpenSCAD file for this? I am envisioning a single .scad file that defines the final design. Thanks!

[Assistant]
Small_Parts_Drawer_Insert_v3.scad:
```
/********************************************************************
*   Parametric Small Parts Drawer Divider                           *
*   (c) 2017 R. Jamieson                                            *
********************************************************************/
//Construct the dividers
HSections = 1;          //Number of horizontal sections
VSections = 4;          //Number of vertical sections
FullHeight = 1;         //Full height walls =1 otherwise half height
wallThickness = 0.8;   //Wall thickness

//Drawer inside dimensions
dMajorWidth=49;
dMinorWidth=45;
dMinorHeight=18;
dLength=130;
dHeight=29;
cutoutWidth=5;
cutoutDepth=2;
cutoutOffset=40;

module box() {
    difference() {
        union() {
            translate([-dMinorWidth/2,0,0]) cube([dMinorWidth,dLength,dMinorHeight]);
            translate([-dMajorWidth/2,0,dMinorHeight]) cube([dMajorWidth,dLength,dHeight-dMinorHeight]);
        }
        //Difference cutting objects below
        translate([-(dMinorWidth-2*wallThickness)/2,wallThickness,wallThickness]) cube([dMinorWidth-2*wallThickness,dLength-2*wallThickness,dMinorHeight]);
            translate([-(dMajorWidth-2*wallThickness)/2,wallThickness,dMinorHeight+wallThickness]) cube([dMajorWidth-2*wallThickness,dLength-2*wallThickness,dHeight-dMinorHeight]);
    }
}

module dividers() {
    union(){
        //Create Horizontal Sections
        if (HSections >1) {
            for (i=[1:HSections-1]) {
                if (FullHeight == 1)
                translate([((dMajorWidth/HSections)*i)-(wallThickness/2)-dMajorWidth/2,0,0]) cube([wallThickness, dLength,dHeight]);
                else
                    translate([((dMajorWidth/HSections)*i)-(wallThickness/2)-dMajorWidth/2,0,0]) cube([wallThickness, dLength,dMinorHeight]);
            }
        }

        //Create Vertical Sections
        for (i=[1:VSections-1]) {
            if (FullHeight == 1)
                translate([-dMajorWidth/2,(dLength/VSections)*i-(wallThickness/2),0]) cube([dMajorWidth,wallThickness,dHeight]);
           else
               translate([-dMajorWidth/2,(dLength/VSections)*i-(wallThickness/2),0]) cube([dMajorWidth,wallThickness,dMinorHeight]);
        }
    }
}

module assembly() {
    union(){
        dividers();

        difference(){
            union(){
                box();
                //Add cutout walls
                translate([dMinorWidth/2-cutoutDepth-wallThickness,cutoutOffset-wallThickness,0]) cube([cutoutDepth+wallThickness,cutoutWidth+2*wallThickness,dMinorHeight+wallThickness]);
                translate([dMinorWidth/2-cutoutDepth-wallThickness,dLength-cutoutOffset-wallThickness,0]) cube([cutoutDepth+wallThickness,cutoutWidth+2*wallThickness,dMinorHeight+wallThickness]);
                translate([-dMinorWidth/2+wallThickness,cutoutOffset-wallThickness,0]) cube([cutoutDepth+wallThickness,cutoutWidth+2*wallThickness,dMinorHeight+wallThickness]);
                translate([-dMinorWidth/2+wallThickness,dLength-cutoutOffset-wallThickness,0]) cube([cutoutDepth+wallThickness,cutoutWidth+2*wallThickness,dMinorHeight+wallThickness]);
                }
            //difference cutouts
            translate([dMinorWidth/2-cutoutDepth,cutoutOffset,-wallThickness]) cube([cutoutDepth+wallThickness,cutoutWidth,dMinorHeight+wallThickness]);
            translate([dMinorWidth/2-cutoutDepth,dLength-cutoutOffset,-wallThickness]) cube([cutoutDepth+wallThickness,cutoutWidth,dMinorHeight+wallThickness]);
            translate([-dMinorWidth/2,cutoutOffset,-wallThickness]) cube([cutoutDepth+wallThickness,cutoutWidth,dMinorHeight+wallThickness]);
            translate([-dMinorWidth/2,dLength-cutoutOffset,-wallThickness]) cube([cutoutDepth+wallThickness,cutoutWidth,dMinorHeight+wallThickness]);
            }
        }
}

//Cleanup
difference(){
    assembly();
    //Trim sides
    translate([dMinorWidth/2,0,-wallThickness]) cube([10,dLength,dMinorHeight+wallThickness]);
    translate([-dMinorWidth/2-10,0,-wallThickness]) cube([10,dLength,dMinorHeight+wallThickness]);
    //trim cutouts
    translate([dMinorWidth/2-cutoutDepth,cutoutOffset,-wallThickness]) cube([cutoutDepth+wallThickness,cutoutWidth,dMinorHeight+wallThickness]);
    translate([dMinorWidth/2-cutoutDepth,dLength-cutoutOffset,-wallThickness]) cube([cutoutDepth+wallThickness,cutoutWidth,dMinorHeight+wallThickness]);
    translate([-dMinorWidth/2,cutoutOffset,-wallThickness]) cube([cutoutDepth+wallThickness,cutoutWidth,dMinorHeight+wallThickness]);
    translate([-dMinorWidth/2,dLength-cutoutOffset,-wallThickness]) cube([cutoutDepth+wallThickness,cutoutWidth,dMinorHeight+wallThickness]);
}

```


[User]
Hi, I'm looking to generate some OpenSCAD files for 3D printable straw connectors. I've seen some designs out there, but I need something I can easily customize. I'm imagining connectors that fit snugly into standard drinking straws and can be combined in different configurations to create various structures.

Here's what I'm thinking for the design parameters:

*   **Straw Fit:** The connectors need to have a section that fits inside the straw. This needs to be adjustable for different straw diameters. I'd like to specify the radius of the tip (the end that goes into the straw), the middle section, and the base. Also, their lengths should be adjustable.
*   **Wall Thickness:** I need to be able to control the wall thickness of the connector.
*   **End Hole:** It'd be good to have a hole at the end of each connector segment. The size of this hole should be adjustable, and there should be an option to close it completely.
*   **Wire Hole:** For added strength on larger structures, I want the option to include a hole through the connector's base that can be used to thread a fishing line or wire.
*   **Flattened Sides:** To help with printing without supports, I want the option to flatten the sides of the connector. This will also help adhesion to the print bed.
*   **Build Plate Adhesion:** I also want to be able to optionally add a grid of thin strips under the connectors for better print bed adhesion. I need to control the width and height of those strips.
*   **Connector Angles:** I need support for standard right-angle connectors, and also for 60-degree angle connectors.
*   **Connector Types:** I'd like to create a variety of connectors, from simple straight pieces, to 2D and 3D corners, T-junctions and Cross-junctions. I'll need to be able to define which directions the straws can connect along (e.g. X, -X, Y, -Y, Z, -Z).
*   **Number of Faces:** I'd like to be able to control the `$fn` value to adjust the resolution of the curved surfaces.
*   **Grid Layout:** I would like to specify the number of columns and rows of connectors to create at once, with optional spacing between them.

I'd like all the parameters to be easily tweakable at the top of the file. I also need the code to be modular so that it can be extended with more options later. I'm not particular about which OpenSCAD libraries to use, but if you do, please specify them.

Could you generate the OpenSCAD files for this?

[Assistant]
Parametric_StrawConnector.v3.0.scad:
```
//  SET YOUR PARAMETERS(in mm)
//  the presets below are obtimized for the straws from IKEA (Sötvatten), to be printed on Ultimaker 2, in PLA ("normal" preset, without support structures or build plate adhesion).
radiusTip    =  3.85;   //
radiusMid    =  4.1;    // >= raduisTip, this should be slightly bigger than the straw inner radius
radiusBase   =  4.0;    //
lengthTip    =  5.0;    //
lengthMid    =  5.0;    //
lengthBase   = radiusBase; // best not to touch
wallThickness=  0.8;    //

//  tubeEndHoleRadius sets the size of the hole in the end of the tube. Choose 0 for completely closed, or "radiusTip-wallThickness" for completely open. Partially closing up the ends helps with keeping the round shape of the tube without having support structures.
tubeEndHoleRadius = 1.2; // in mm

//  holeTroughBack can be used to string a fishing-wire trough the connector if your construction needs extra tensile strength to stay together (e.g long horizontal spans).
holeTroughBack = true; // true|false

//  FlattenedSides make it easier and cleaner to print without support structures and create beter print bed adhesion. If true, the circomference of the tube will be slightly smaller, you might have to tweak the radii.
flattenSides = true;  // true|false

//  buildPlateAdhesionGrid creates a "1 layer" thick grid of strips underneath the connectors, connection them together and creating a larger surface area to stick to the buildPlate. If you enable this option, you should turn of adhesion in your slicing software.
buildPlateAdhesionGrid        = true; // true|false
buildPlateAdhesionStripWidth  = 1.5;  // in mm
buildPlateAdhesionStripHeight = 0.2;  // should be bigger than the layerheight set in your slicer software

//  Set number of faces of tubes and spheres. 26 seems to work best to let tubes connect to center spheres, but play with this if you want
$fn = 26;

//  EXAMPLE CONFIGURATIONS
//  X,Y,Z are positive axis directions
//  x,y,z are negative axis directions
//  Example Connector Definitions:
//  [X];           // test piece to try the fitting
//  [X,x];         // Straight ─
//  [X,Y];         // 2D Corner ┘
//  [X,x,Y];       // 2D T-Junction ┴
//  [X,x,Y,y];     // 2D Cross-Junction ┼
//  [X,Y,Z];       // 3D Corner ╜
//  [X,x,Y,Z];     // 3D T-Junction ╨
//  [X,x,Y,y,Z];   // 3D T-Cross-Junction ╫
//  [X,x,Y,y,Z,z]; // 3D Cross-Cross-Junction ╬
//  [X,Y,Q];       // 3D Corner with 60º angle
//  [X,x,Y,Q];     // 3D T-Junction with 60º angle

// DEFINE CUSTOM CONNECTOR
grid(
    connectorDefinition=[X,x,Y,Z],
    cols=2,
    rows=2
);

//  OR, SELECT COMMON PRESETS
//  (remove * to select):
*!grid([X,Y,Z],      1,1); //  1 3D Corners
*!grid([X,Y,Z],      4,2); //  8 3D Corners
*!grid([X,x,Y,Z],    4,4); // 16 3D T-junctions
*!grid([X,x,Y,y,Z],  4,2); //  8 3D T-Cross-junctions
*!grid([X,x,Y,y,Z,z],2,2); //  4 3D Cross-Cross junctions

/////////////////////////////////////////////////////
// Don't touch beyond this line
// Unless you want to create different orrientations
/////////////////////////////////////////////////////

// Define tube orientations
X = ["X",[ 90,  0, 90]];
x = ["x",[-90,  0, 90]];
Y = ["Y",[-90,  0,  0]];
y = ["y",[ 90,  0,  0]];
Z = ["Z",[  0,  0,  0]];
z = ["z",[  0,180,  0]];
Y60X = ["Y",[-90, 0, -30]]; // replaces Y with a 60 degree angle from X
Y60x = ["Y",[-90, 0, 30]]; // replaces Y with a 60 degree angle from x
Z60Y = ["Y",[-30, 0, 0]]; // replaces Y with a 60 degree angle from X

// MODULES

module grid(connectorDefinition, cols=1, rows=1, spacing=2){

    // shorthand
    conDef = connectorDefinition;

    unitWidth = unitSize("x",conDef)+unitSize("X",conDef);
    unitDepth = unitSize("y",conDef)+unitSize("Y",conDef);

    xOffset = unitWidth+spacing;
    yOffset = unitDepth+spacing;

    for(i=[0:cols-1]){
        for(j=[0:rows-1]){
            translate([i*xOffset,j*yOffset,0]){
                create(connectorDefinition);
            }
        }
    }
    if(buildPlateAdhesionGrid){
        buildPlateAdhesionGrid(connectorDefinition, cols, rows, spacing);
    }
}

module create(connectorDefinition){
    // move up to sit on the plain
    haszTube = hasTube("z", connectorDefinition);

    moveUp = (haszTube) ? lengthTip+lengthMid+lengthBase : tubeRadius();
    translate([0,0,moveUp]){
        Connector(connectorDefinition);
    }
}

module Connector(connectorDefinition){
    // Create the connector
    difference(){
        // we need to first create all solids and then all hollows, because the hollows will break through the center spheres of other tubes, making the whole thing truly hollow.
        //If we would create each tube separately and then join them, the center would be a solid sphere, leaving no channel through the whole object.

        // first construct and join all solid tubes
        union(){
            for(i=[0:len(connectorDefinition)-1]){
                TubeSolid(connectorDefinition[i][1]);
            }
        }
        // then construct and join all hollow tubes, to be substracted from the solid shape
        union(){
            for(i=[0:len(connectorDefinition)-1]){
                TubeHollow(connectorDefinition[i][1]);
            }
        }
    }
}

module TubeHollow(rotation){
    // make the hollow tube smaller than the solid, by 'wallThickness'
    innerRadius=min(radiusTip,radiusMid,radiusBase) - wallThickness;
    // rotate the tube in the requested orientation
    rotate(rotation){
        // add sphere at base end
        sphere(innerRadius);
        // move cylinder slightly down to extend beyond the top/bottom of the tube
        o=0.001;
        length=tubeLength()+o-wallThickness;
        translate([0,0,-o]){
            // create inner cylinder, slightly longer than the solid tube
           cylinder(h=length,r=innerRadius);
        }
        moveDown = (holeTroughBack)?radiusBase:0;
        translate([0,0,-moveDown]){
           cylinder(h=radiusBase+length+wallThickness+o,r=tubeEndHoleRadius);
        }
    }
}

module TubeSolid(rotation){
    // rotate the tube in the requested orientation
    rotate(rotation){
        // create tube
        tube(radiusTip,radiusMid,radiusBase,lengthTip,lengthMid,lengthBase,wallThickness);
    }
}

module tube(rTip, rMid, rBase, lTip, lMid, lBase, wall){
    // slice some flat sides off the cylinder, for easyer printing without support
    intersection(){
        tubeCylinder(rTip, rMid, rBase, lTip, lMid, lBase, wall);
        if(flattenSides){
            tubeCube(rTip, rMid, rBase, lTip, lMid, lBase, wall);
        }
    }
}

module tubeCube(rTip, rMid, rBase, lTip, lMid, lBase, wall){
    w=min(rTip, rMid, rBase)*2;
    h=lTip+lMid+lBase+rBase;
    translate([0,0,h/2-min(rTip, rMid, rBase)]){
        cube([w,w,h], center=true);
    }
}

module tubeCylinder(rTip, rMid, rBase, lTip, lMid, lBase, wall){
    champherSize = wall/2;
    // add sphere at base end
    sphere(radiusBase);
    // Base section of the tube
    cylinder(h=lBase, r2=rBase, r1=rBase);
    // Mid section of the tube
    translate([0,0,lBase]){
        cylinder(h=lMid, r2=rMid, r1=rBase);
    }
    // Tip section of the tube
    translate([0,0,lBase+lMid]){
        cylinder(h=lTip-champherSize, r1=rMid, r2=rTip, center=false);
    }
    // Champher of the tip
    translate([0,0,lengthBase+lengthMid+lengthTip-champherSize]){
        cylinder(h=champherSize, r1=rTip, r2=rTip-champherSize, center=false);
    }
}

module buildPlateAdhesionGrid(connectorDefinition, cols, rows, spacing){

    // shorthands
    width = buildPlateAdhesionStripWidth;
    height = buildPlateAdhesionStripHeight;
    conDef = connectorDefinition;

    hasxTube = hasTube("x", conDef);
    hasXTube = hasTube("X", conDef);
    hasyTube = hasTube("y", conDef);
    hasYTube = hasTube("Y", conDef);

    unitSizeX = unitSize("X", conDef);
    unitSizex = unitSize("x", conDef);
    unitSizeY = unitSize("Y", conDef);
    unitSizey = unitSize("y", conDef);

    unitWidth = unitSizex+unitSizeX;
    unitDepth = unitSizey+unitSizeY;

    // strip lengths
    lengthX = cols*(unitWidth+spacing)+spacing+2*width;
    lengthY = rows*(unitDepth+spacing)+spacing+2*width;

    // Draw x-direction strips
    for(j = [0:rows-1]){
        Strip("x", width, height, lengthX, spacing, hasxTube, offset=j*(unitDepth+spacing));
    }

    // Draw y-direction strips
    for(i = [0:cols-1]){
        Strip("y", width, height, lengthY, spacing, hasyTube, offset=i*(unitWidth+spacing));
    }

    // Draw bounding box - x-direction
    offsetX1 = (hasyTube)? -unitSizey-spacing-0.5*width : -tubeRadius()-spacing-0.5*width;
    Strip("x",width, height, lengthX, spacing, hasxTube, offsetX1);

    offsetX2 = (rows-1)*(unitDepth+spacing)+unitSizeY+spacing+0.5*width;
    Strip("x",width, height, lengthX, spacing, hasxTube, offsetX2);

    // Draw bounding box - y-direction
    offsetY1 = (hasxTube)? -unitSizex-spacing-0.5*width : -tubeRadius()-spacing-0.5*width;
    Strip("y",width, height, lengthY, spacing, hasyTube, offsetY1);

    offsetY2 = (cols-1)*(unitWidth+spacing)+unitSizeX+spacing+0.5*width;
    Strip("y",width, height, lengthY, spacing, hasyTube, offsetY2);

}

module Strip(xOryAxis, width, height, length, spacing, hasxOryTube, offset=0){

    recenterWidth = -0.5*width;

    recenterLength = (hasxOryTube)? -lengthTip-lengthMid-lengthBase-spacing-width : -tubeRadius()-spacing-width;

    translation = (xOryAxis=="x")? [recenterLength,recenterWidth+offset,0] : [recenterWidth+offset,recenterLength,0];

    dimension = (xOryAxis=="x")? [length,width,height] : [width,length,height];

    translate(translation){
        #cube(dimension);
    }
}

// FUNCTIONS

function hasTube(axis, conDef) =
    (len(search(axis, conDef))>0)?true:false;

function tubeRadius() = (flattenSides)? min(radiusTip,radiusMid,radiusBase) : max(radiusTip,radiusMid,radiusBase);

function tubeLength() = lengthTip+lengthMid+lengthBase;

function unitSize(axis,conDef) = (hasTube(axis, conDef))? tubeLength():tubeRadius();

```


[User]
I'm looking for an OpenSCAD design for a ball-and-socket type joint, primarily intended to guide a filament for a 3D printer, but it should be generally useful. I really like the style of the ball head in the `FilamentGuide_kossel.scad` example I found (see attached), but I'd like to make it more modular, more parametric, and include some mounting screw holes.

Specifically, I'd like to control these parameters:

*   **ball_radius**: The radius of the main ball.
*   **socket_radius**: The radius of the socket that the ball sits in (should be slightly larger than `ball_radius`).
*   **socket_depth**: How deep the socket is.
*  **neck_diameter**: The diameter of the neck that connects the ball to the base.
*   **neck_height**: The height/length of that neck.
*   **base_thickness**: How thick the mounting base is.
*   **screw_hole_diameter**: The diameter of the mounting screw holes.
*   **screw_hole_spacing**: The distance between the centers of screw holes (assuming they're on a circle)
*   **screw_hole_count**: The number of screw holes around the base.
*   **use_countersink**: Whether or not to create countersunk screw holes.
*   **countersink_angle**: The angle of the countersink cone.
*   **countersink_diameter**: The diameter of the countersink cone's top.
*   **orientation**:  A "vert" or "horiz" parameter, similar to the provided file, that controls the orientation of the mount.
*   **guide_tube_diameter**: The diameter of the guide tube that extends out the side.
*   **guide_tube_length**: The length of the guide tube.

The design should have a round base with the screw holes on a circular pattern. The ball should be connected to the base by the neck, and the ball itself should fit into a matching socket on a separate piece. I'd like the socket piece to also be customizable in terms of thickness. The design should support M3 screws, so the `screw_hole_diameter` should be appropriate for that. If `use_countersink` is true, then the screw holes should be countersunk.  The tube guide should extend outward from the base, its direction dependent on the `orientation` parameter.

I think that covers it. Could you generate the required OpenSCAD files? I'd also prefer a library file, so that I can add more customized variants later. Let me know if you need more information. I'm thinking this will likely require two files: one for the library itself, and another to demonstrate it.

[Assistant]
FilamentGuide_kossel.scad:
```

height_mm = 10; // [2:100]
orientation = "vert"; // [vert,horiz]

scale(.5) {
    $fn=96;
    difference() {
        difference(){
            union() {
                sphere(20);
                translate([17.8,-5,5])
                 rotate([0,90,0])
                 minkowski($fn=32)
                 {
                  cube([10,10,height_mm*2]);
                  cylinder(r=2,h=0.0001);
                 };

                translate([height_mm*2+17, orientation == "vert" ? -10 : -25, orientation == "vert" ? -25 : -10])
                 cube([4, orientation == "vert" ? 20 : 50, orientation == "vert" ? 50 : 20]);
            }
            sphere(16);
        }

        translate([-20,-20,10])
         cube([40,40,20]);
        translate([-20,-20,-30])
         cube([40,40,20]);

        translate([height_mm*2+15,orientation == "vert" ? 0 : -15, orientation == "vert" ? -15 : 0])
         rotate([0,90,0])
          cylinder(r=3,10);

        translate([height_mm*2+15,orientation == "vert" ? 0 : 15, orientation == "vert" ? 15 : 0])
         rotate([0,90,0])
          cylinder(r=3,10);
    };

    difference() {
        difference(){
            union() {
                sphere(15);
            }
            translate([0,0,-20])
             cylinder(r=4,40);

            translate([0,0,9])
             cylinder(r1=4,r2=5,2);

            translate([0,0,-11])
             cylinder(r1=5,r2=4,2);
        }

        translate([-20,-20,10])
         cube([40,40,20]);
        translate([-20,-20,-30])
         cube([40,40,20]);
    };
}
```


[User]
I'd like a parametric design for a push pin in OpenSCAD. I've got a couple of ideas in mind, and I'd like to be able to switch between them.

Specifically, I need a push pin with a cylindrical shaft, a base, and a top. The base should be a short cylinder with slightly tapered sides, and the top part should be a cone, a series of stacked cones, or a ball shape. There also needs to be a separate pin that inserts into the main body. The pin itself should have a short cylindrical base, a cylindrical rod, and a spherical retainer at the end.

The whole thing should be parametric so I can easily change the diameter of the pin, the overall height, the pin diameter, the base thickness, the number of cones if I choose that style of top, and the spacing of the parts. I think it'd be nice to have the top height be a function of the pin's diameter.

For ease of printing, I need a bit of extra space around the pin and a small chamfer on the top, so the pin is easily inserted without binding or any tight fitting.

Could you please make this using OpenSCAD with all the parameters adjustable in the customizer? I don't have a strong preference for libraries if they aren't necessary, but if you use one, let me know which one, and if it's not part of the default installation, I'll install it.

[Assistant]
PushPinV2.scad:
```
//-- Parametric push pin

// Parameters

// Diameter
diam = 10.0; // [5.0:20.0]
// Type
cones = 0; // [0:ball,1:cones]
// Cone count
cone_cnt = 6; // [1:10]

/* [Hidden] */
// diameter ratio
pin_diam = diam*0.32;
space = 0.5;
h = diam*3; // height ratio
e = 0.02;
pin_xy = diam + 10; // offset for pin print
$fn = 64;
base = diam * 0.25; // base thickness

// Modules
module cutout(){
    // corners
    translate([-diam/2,-diam/2,0]) cube([diam/2+pin_diam,diam/2+pin_diam,h*3], center=true);
    translate([diam/2,diam/2,0]) cube([diam/2+pin_diam,diam/2+pin_diam,h*3], center=true);
}

module push() {
 difference () {
   union() {
     // base
     difference() {
        cylinder(r1=diam*1.2, r2=diam*1.1, h=base);
        // space for pin
        translate([0,0,-e]) cylinder(r=pin_diam+space-0.1, h=h+e);
     }
     // shaft
     difference() {
        cylinder(r=diam/2, h=h, $fn=100);
        cylinder(r=pin_diam+space, h=h);
        cutout();
     }
     if(cones)
     {
         difference() {
          csp = (h-base-h/4)/cone_cnt; // cone spacing
          ch = h/4+base; // cone height
          for(i=[1:cone_cnt])
           translate([0,0,ch+csp*i])
              cylinder(h=ch, r1=diam*0.65, r2=0, center=true);
          cylinder(r=pin_diam+space, h=h);
          cutout();
         }
     }else{ // ball
         difference() {
          translate([0,0,h/2])
           sphere(d=diam+pin_diam, $fn=100);
          // space for pin
          cylinder(r=pin_diam+space, h=h);
          cutout();
         }
     }
     // hat
     difference() {
      translate([0, 0, h])
       cylinder(h = h/3, r1 = diam/2, r2 = 0);
      // sides
       cutout();
     }
   }
 }
}

module pin() {
 difference () {
  translate([pin_xy,pin_xy,0])
    union() {
     cylinder(r1=diam*0.7, r2=diam*0.6, h=base); // base
	 cylinder(r=pin_diam, h=h*0.9, $fn=100); //rod
	 translate([0,0,h*0.9])
      sphere(r=pin_diam+0.2, $fn=100); // retainer
    }
 }
}

push();
pin();

```
PushPin.scad:
```
//-- Parametric push pin

// Parameters

// Diameter
diam = 12.0; // [5.0:20.0]

/* [Hidden] */
// diameter ratio
pin_diam = diam*0.32;
space = 0.5;
h = diam*3; // height ratio
e = 0.02;
pin_xy = diam + 10; // offset for pin print
$fn = 64;

// Modules
module cutout(){
    // corners
    translate([-diam/2,-diam/2,0]) cube([diam/2+pin_diam,diam/2+pin_diam,h*3], center=true);
    translate([diam/2,diam/2,0]) cube([diam/2+pin_diam,diam/2+pin_diam,h*3], center=true);
}

module push() {
 difference () {
   union() {
     // base
     difference() {
        cylinder(r1=diam*1.2, r2=diam*1.1, h=diam*0.25);
        // space for pin
        translate([0,0,-e]) cylinder(r=pin_diam+space-0.1, h=h+e);
     }
     // shaft
     difference() {
        cylinder(r=diam/2, h=h, $fn=100);
        cylinder(r=pin_diam+space, h=h);
        cutout();
     }
     // ball
     difference() {
	  translate([0,0,h/2])
       sphere(d=diam+pin_diam, $fn=100);
      // space for pin
      cylinder(r=pin_diam+space, h=h);
      cutout();
     }
     // hat
     difference() {
      translate([0, 0, h])
       cylinder(h = h/3, r1 = diam/2, r2 = 0);
      // sides
       cutout();
     }
   }
 }
}

module pin() {
 difference () {
  translate([pin_xy,pin_xy,0])
    union() {
     cylinder(r1=diam*0.7, r2=diam*0.6, h=diam*0.24); // base
	 cylinder(r=pin_diam, h=h*0.9, $fn=100); //rod
	 translate([0,0,h*0.9])
      sphere(r=pin_diam+0.2, $fn=100); // retainer
    }
 }
}

push();
pin();

```


[User]
I'm looking to design a cover for my Python aquarium cleaning tool. It's a cylindrical tube, and I want a sort of grate on the end to prevent my fish from getting sucked in. I have a basic idea using OpenSCAD, but I would like a parametric design that is more flexible. I've included the SCAD file I've been playing around with, which I would like you to use as a basis, if that's okay:

```
python_od = 51.4;
grid_spacing = 5;
grid_w = 1.0;
python_ht = 15;
grid_ht = 0.8;
outer_wall_w = 1.5;
eps = 0.01;

$fn=100;

module mesh(x, y, spacing, ht, th){
  total_x = x*spacing;
  total_y = y*spacing;
  for (xdir = [-total_x/2:spacing:total_x/2]) {
     translate([-th/2+xdir,-total_y/2,0])
        cube([th,total_y,ht]);
  }
  for (ydir = [-total_y/2:spacing:total_y/2]) {
    translate([-total_x/2,-th/2+ydir,0])
        cube([total_x,th,ht]);
  }
}

num_mesh = round(python_od/grid_spacing+1);
echo(num_mesh);

module cover() {
  difference() {
    cylinder(h=python_ht, d=python_od+2*outer_wall_w);
    translate([0,0,-eps]) cylinder(h=python_ht+2*eps, d=python_od);
  }
  intersection(){
    cylinder(h=python_ht, d=python_od+2*outer_wall_w);
    mesh(num_mesh, num_mesh,grid_spacing,grid_ht,grid_w);
  }
}

cover();
```

Essentially, I want a cylindrical cover that fits snugly onto the end of the Python, with a grid across the opening. I'd like to be able to easily adjust the following parameters:

*   `python_od`: The outer diameter of the Python tube.
*   `outer_wall_w`: The thickness of the walls of the cover.
*   `python_ht`: The height of the cover.
*   `grid_spacing`: The spacing between the grid lines.
*  `grid_w`: The thickness of the grid lines.
*   `grid_ht`: The height of the grid lines.

It'd also be nice if the number of grid lines would be calculated automatically based on `python_od` and `grid_spacing` (like I did with `num_mesh` in the code above, that's something I'd like to keep). I'm okay with the grid being a simple square mesh, like in my example, but maybe you can include other options for the pattern later on if that's not too hard. I'm also fine with the grid and cylinder being intersecting volumes, like in the original design.

I'd also like a small tolerance to be built into the inner diameter of the cover, so it's not too tight. Maybe an epsilon value for that would be nice, but let's start with a single tolerance value for now to keep things simple.

I'd like for this design to be generated as a single SCAD file without any external dependencies. Thank you!

[Assistant]
pythoncover.scad:
```
python_od = 51.4;
grid_spacing = 5;
grid_w = 1.0;
python_ht = 15;
grid_ht = 0.8;
outer_wall_w = 1.5;
eps = 0.01;

$fn=100;

module mesh(x, y, spacing, ht, th){
  total_x = x*spacing;
  total_y = y*spacing;
  for (xdir = [-total_x/2:spacing:total_x/2]) {
     translate([-th/2+xdir,-total_y/2,0])
        cube([th,total_y,ht]);
  }
  for (ydir = [-total_y/2:spacing:total_y/2]) {
    translate([-total_x/2,-th/2+ydir,0])
        cube([total_x,th,ht]);
  }
}

num_mesh = round(python_od/grid_spacing+1);
echo(num_mesh);

module cover() {
  difference() {
    cylinder(h=python_ht, d=python_od+2*outer_wall_w);
    translate([0,0,-eps]) cylinder(h=python_ht+2*eps, d=python_od);
  }
  intersection(){
    cylinder(h=python_ht, d=python_od+2*outer_wall_w);
    mesh(num_mesh, num_mesh,grid_spacing,grid_ht,grid_w);
  }
}

cover();
```


[User]
Hey, I'm looking to get an OpenSCAD design for a replacement band keeper for my fitness watch, and I'm not sure where to start. I've tried to design one, but I don't think I did it very well and it doesn't feel very parametric.

Basically, I want a rounded rectangular prism with a hole through the middle, that the watch band will fit through. I'd like to control the width, length, and height of the main body, along with the band thickness, and the corner radius. I also need it to have a small tab that sticks out that the band can tuck under. I need to control the size of this tab and whether it is rendered. So, I was hoping to make the design parametric to account for different sized bands, and the ability to customize the tab.

To be more specific:

**Main Body:**
*   I need a rounded rectangular prism shape, with a hole running through the center.
*   I need parameters for the overall *width*, *length*, and *height* of the prism.
*   I need a parameter for the *bandThickness*, which will affect the size of the hole that the band passes through. The bandThickness should add to both the overall width and length dimensions of the outer prism, but only subtract from the dimensions of the inner, hollowed area.
*   I need a parameter to specify the *corner radius* of the rounded corners.
*   I would like the object to be centered at the origin.

**Tab:**
*   I need a tab that can be optionally rendered via a `tabRendered` variable.
*  If rendered, the tab should be attached to the side of the rectangular prism.
*   I need parameters for the *tabWidth*, *tabLength*, and *tabHeight*.
*   I need a parameter for the *tabRadius* to control the radius of the corners of the tab.
*   The tab should be rotated so that it protrudes from the side.

I would prefer that all of this be in a single .scad file with variables defined at the top that can be easily changed. I am comfortable with any of the standard libraries. Could you help me with this?

[Assistant]
Customizable_Watch_Keeper.scad:
```
width = 5.5;
length = 26.75;
height = 10;
bandThickness = 2;
radius = 3;

tabRendered = 1;
tabWidth = 2.25;
tabLength = 9.25;
tabHeight = 1.25;
tabRadius = 1;

difference(){
    roundedRect([width+bandThickness,length+bandThickness,height], center=true, radius);
    translate([0,0,-1]){roundedRect([width,length,height+5], center=true, radius);}
}
if(tabRendered){translate([(width/2)+(radius/2),0,height/2]){rotate([90,0,-90]){roundedRect([tabLength, tabHeight, tabWidth], center=true, tabRadius);}}}

// size - [x,y,z]
// radius - radius of corners
module roundedRect(size, radius)
{
	x = size[0];
	y = size[1];
	z = size[2];

	linear_extrude(height=z)
	hull()
	{
		// place 4 circles in the corners, with the given radius
		translate([(-x/2)+(radius/2), (-y/2)+(radius/2), 0])
		circle(r=radius);

		translate([(x/2)-(radius/2), (-y/2)+(radius/2), 0])
		circle(r=radius);

		translate([(-x/2)+(radius/2), (y/2)-(radius/2), 0])
		circle(r=radius);

		translate([(x/2)-(radius/2), (y/2)-(radius/2), 0])
		circle(r=radius);
	}
}
```


[User]
Hey, I'm looking to create a customizable bicycle license plate, kind of like those vintage souvenir ones you see. I want to be able to specify the name, state, and maybe a bottom text line. Also, it'd be great if I could adjust the spacing between letters and the size of the letters too. I'd like it to have mounting holes on the sides.

For the main shape, I'm picturing a rectangle with rounded corners. It should have two layers: a white base and a slightly smaller green layer on top. The text should be on the green layer.

I was thinking that the font should be "License Plate", which I found on fontspace.com (http://www.fontspace.com/dave-hansen/license-plate), but if that causes trouble, anything similar to that would work.

I'd like to be able to adjust the size of the plate, too. It would be cool if the overall size defaulted to around 145x88. Is it possible to design all this using OpenSCAD?

[Assistant]
BikePlates.scad:
```
// Customizable classic bike License plate generator
//
// Makes vintage style licence plates with your name on it for
// your bicycle. The style is like the ones you find in gift shops
// at various tourist traps. My sister was always sad that she
// could never find one with her name. This thing is for you
// Monica! If your name is too long try adjusting the letter
// spacing, then the letter size.
//
// Of course, you are not limited to your actual name and state,
// Have fun with that!
//
// The font I used is available here:
//      http://www.fontspace.com/dave-hansen/license-plate
// You might want to download the .scad file and run it locally
// if thingiverse doesn't have that one available

// Your Name
name = "Bobby";

// Your State
state = "FLORIDA";

// Optional Bottom Text
bottom = "SUNSHINE STATE";

// Letter Spacing
spacing = 1; // [.8:.1:1.3]

// Letter Size
lsize = .7; // [.5:.1:1.0]

/* [Hidden] */
font_ = "License Plate";
size = [5.8,3.5] * 25;
c_rad = 6;

BikePlate(name, state, bottom, spacing, lsize, font_);

module BikePlate(name, state, bottom, spacing, lsize, font_) {
    color("white")  {
        linear_extrude(height = 2)
            difference () {
                offset (r=c_rad) square (size - [2,2]*c_rad, center=true);
                translate(size*.5+[-20,-10]) mounting_hole(2,3);
                mirror() translate(size*.5+[-20,-10]) mounting_hole(2,3);
            }
    }

    color("ForestGreen") linear_extrude(height = 4) {
        difference ()   {
            offset (r=c_rad-2) square (size - [2,2]*c_rad, center=true);
            offset (r=c_rad-4) square (size - [2,2]*c_rad, center=true);
        }
        text(name, spacing = spacing, font = font_, size=.5*size[1]*lsize, valign="center", halign="center");
        translate ([0, size[1]/2 - 12]) text(state, font = font_, 10, valign="center", halign="center");
        translate ([0,-size[1]/2 + 12]) text(bottom, font = font_, 10, valign="center", halign="center");
    }
}

module mounting_hole (width, radius)
{
    hull () {
        translate([ width/2 + radius, 0]) circle(radius);
        translate([-width/2 - radius, 0]) circle(radius);
    }
}

```


[User]
I'm looking to create a cable comb for organizing wires, and I want it to be highly customizable. I'd like the design to be parametric so I can easily adjust it for different numbers and sizes of cables.

Here are the specific features I need:

*   **Cable Hole Diameter:**  The design needs a parameter to control the diameter of the hole that will hold each wire. I need to be able to specify this in millimeters. I also want a separate parameter for the gap that forms the opening into each hole.
*   **Number of Wires:** I need a parameter to specify the total number of wires the comb should hold.
*   **Single or Double Row:** The design should allow for either a single row of wire holes or two rows of wire holes. This should be a parameter that can be set by the user.
*   **Hole Spacing:** I need a parameter to control the spacing between the wire holes. This spacing should also be the thickness of the spine of the comb.
*   **Comb Height:**  There should be a parameter for the overall height of the comb.
*   **Tolerances:** I need to be able to adjust the gap in the hole opening, so it's easy to insert and remove cables.
*   **Even/Odd Double Rows:** When using a double row, the comb should handle both even and odd numbers of wires correctly.

For the OpenSCAD code, I don't need any specific libraries. I'm mostly concerned with getting the parameters correct. Could you please generate the .scad file that includes this functionality?

[Assistant]
cableComb.scad:
```
    /*customizeable cable comb*/
        /*by Marchogwyn*/

//Variables

//Diameter of the hole for the cable you want to hold. Add tolerancing if you want the clip to be snug or loose.
wire_size=3.5;

//Number of wires to hold.
wires=10;

//Single or double row of holes?
rows=1;//[1:single,0:double]

//tightness of the opening in the form of wire size - gap. Set to lower values to make the cables easier to get in and out of the clip
gap=1;

//spacing between the holes. Also the thickness of the spine of the clip
spacing=1;

//z-height of the clip
height=4;

/* [hidden] */
//resolution
$fs=0.5;

//Modules
module comb(slots=10){
    difference(){
        hull()
            for(i=[0:1])
                translate([i*(slots-1)*(wire_size+spacing),0,0])
                    circle(d=(wire_size+spacing*2));
        for(i=[0:slots-1]){
            translate([i*(wire_size+spacing),0,0]){
                circle(d=wire_size);

                translate([0,(wire_size/2+spacing)/2,0])
                    square([wire_size-gap,wire_size/2+spacing],center=true);

                translate([0,(wire_size+spacing*2)/2,0])
                rotate([0,0,45])
                    square(1.4142*(wire_size+spacing)/2,center=true);
            }
        }
    }
}

//Render

//single line of holes
if(rows){
    linear_extrude(height=height)comb(wires);
}

//double line of holes
else if((!rows)&&(wires%2==0)){//if there are an even number of holes
    linear_extrude(height=height){
        comb(wires/2);
        translate([0,-(wire_size+spacing),0])mirror([0,1,0])comb(wires/2);
    }
}
else{//if there are an odd number of holes
    linear_extrude(height=height){
        comb(ceil(wires/2));
        translate([(wire_size+spacing)/2,-(wire_size+spacing),0])
            mirror([0,1,0])comb(floor(wires/2));
    }
}
```


[User]
Hey, I'm looking for help designing a parametric filament funnel in OpenSCAD. I've been using one I designed myself, but it's not very flexible and I figured I could make it more easily customizable for others if I redid it with parameters.

Basically, it's a tube with a funnel on one end. The tube part slips over the end of a filament guide tube, and the funnel makes it easier to guide the filament into the tube opening.

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

*   `outer_diameter`: The outer diameter of the tube that the funnel sleeve slips over.
*   `inner_diameter`: The inner diameter of the filament hole within the tube.
*   `wall_thickness`: The thickness of the walls of the tube and the wall separating the sleeve and the funnel sections.
*   `funnel_angle`: The angle of the funnel slope. A 90-degree angle would mean it's flat, and a small angle will result in a tall, narrow funnel.
*   `sleeve_height`: The height of the sleeve portion that slips over the tube.

The design should be a single solid piece. I think using `rotate_extrude` from a 2D polygon would probably be the easiest way to generate it. I'd like the model to have the tube part with a cylindrical profile, connected to the funnel section. I'd also want the model to have the appropriate sized hole for filament to pass through, continuing through the sleeve and funnel. I think that's pretty much everything. Let me know if you have questions.

[Assistant]
filament_funnel.scad:
```
// preview[view:south, tilt:bottom diagonal]

// Number of sides for the curves
$fn=100;

// Diameter of the tube this will slip over.
outer_diameter = 6.3;

// Diameter of the filament hole in the tube.
inner_diameter = 2.5;

// Thickness of the walls around the tube and the wall between the funnel and the sleeve.
wall_thickness = 0.8 ;

// Angle of slope for the funnel, where 90 is horizontal. Determines how tall the funnel will be. Don't exceed your printer's maximum overhang.
funnel_angle = 30;

// Height of the sleeve that slips over the end of the tubr
sleeve_height = 8;

outer_radius = outer_diameter / 2;
inner_radius = inner_diameter / 2;

funnel_height = (outer_diameter - inner_diameter) / (2 * tan(funnel_angle));

module funnel(outer_diameter = outer_diameter) {
  outer_radius = outer_diameter/2;

  // Best way in the world to make anything with rotational
  // symmetry: sculpt it as a polygon, then rotate_extrude.
	rotate_extrude()
	polygon([
	  [outer_radius, 0],
	  [outer_radius + wall_thickness, 0],
	  [outer_radius + wall_thickness, funnel_height + wall_thickness + sleeve_height],
	  [outer_radius, funnel_height + wall_thickness + sleeve_height],
	  [outer_radius, funnel_height + wall_thickness],
	  [inner_radius, funnel_height + wall_thickness],
	  [inner_radius, funnel_height]
	]);
}

funnel();
```


[User]
I'm looking to create a tool to help remove a Raspberry Pi from enclosures, specifically the ones on Thingiverse like  https://www.thingiverse.com/thing:2583770 or https://www.thingiverse.com/thing:2598421. I saw someone made a simple design and I want to improve it with more parameters, like better grip.

Essentially, the tool should consist of a base and a thin rod extending from it, like a lever.  The existing design has a base made up of two cylinders stacked on top of each other, the bottom one flaring out. I'd like to keep that general shape but make the dimensions more easily adjustable. The rod will act as the lever and will be inserted into the case.

For the base, I'd like to control the following:

*   **base_bottom_radius_1:** Radius of the bottom cylinder of the base (the wider one).
*   **base_bottom_radius_2:** Radius of the top of the bottom cylinder of the base (where it meets the second cylinder).
*   **base_bottom_height:** Height of the bottom base cylinder.
*   **base_top_radius:** Radius of the top cylinder.
*   **base_top_height:** Height of the top cylinder.
*   **base_offset:** The amount to translate the entire base down (to be able to insert it under the board).

For the rod:

*   **rod_radius:** Radius of the rod.
*   **rod_height:** Height of the rod.

It would be helpful if the script generated the full file so I could just use it directly. No need for external libraries.

[Assistant]
bed_remover.scad:
```
/* Permet de contruire une tige permettant d'enlever le RPI ou autre
By jeff le 10/2017
*/

//Declaration des variables

//HEIGHT (mm).
_height = 20; //[1:200]

//Base
translate([0,0,-2]){

	cylinder(h=2,r1=10,,r2=7,center=false);

	translate([0,0,-1]){
		cylinder(h=1,r1=10,r2=10,center=false);
	}
}

//Tige
cylinder(h=_height,r=2,center=false);

```