[User]
Hey, I'm looking to get a parametric tripod screwdriver designed, something that's 3D printable. I want it to be a fairly robust design that can be used in a few different ways.

The basic design should have a blade at one end for the tripod screw, a hexagonal shaft in the middle for using with a wrench, and a handle at the other end with a hole for an Allen key to be inserted.

Specifically, I need the following parameters to be adjustable:
*   `blade_width`: Width of the screwdriver blade.
*   `blade_thickness`: Thickness of the screwdriver blade.
*   `blade_length`: Length of the straight portion of the blade.
*   `blade_taper`: Length of the 45 degree tapered portion of the blade.
*   `printer_oversizing`: Compensation value for printer's over-sizing (set to 0 if no compensation).
*   `hexagonal_shaft_length`: Length of the hexagonal shaft portion.
*   `hexagonal_shaft_wrench_width`: Width of the wrench that will fit on the hexagonal shaft.
*   `allen_key_width`: Width of the Allen key that will fit into the handle.
*   `handle_length`: Length of the handle.
*   `handle_diameter`: Diameter of the main handle.
*   `handle_polygon_faces`: Number of faces of the polygon that makes up the handle (e.g. 6 for hexagonal, 8 for octagonal).
*   `transition_length`: Length of the smooth transitions between the blade/hexagonal shaft/handle.

Also, to help with meshing, I would like an `epsilon` value that can be used to ensure faces align well, even if it is a very small value, and you should set a `tol` (tolerance) equal to `printer_oversizing`.

So, to be clear, the design should:
1. Have a blade at one end that has a straight section, then a 45-degree taper to the final width, the width and length should be parametric, as should be the length of the taper.
2. The blade should transition smoothly into a hexagonal shaft. This shaft should have a length and a hex width.
3. The hexagonal shaft should smoothly transition into the main handle. The handle should be a parametric polygon with diameter and length and a number of faces.
4. The end of the handle should have a hole for an allen key that is parametrically sized
5. The entire design should be fully parametric based on the inputs I have provided, and you should use variables so that it can be modified easily.

I'm looking for an OpenSCAD file or files that accomplishes this. I'd prefer that the main design is in a single file. I don't need to worry about any external libraries in this case, just a standalone file. I would also prefer that you keep the file as simple as possible without using external modules.

[Assistant]
Parametric_Tripod_Screw_Driver.scad:
```
// Width of Screwdriver Blade
blade_width = 10;

// Thickness of Screwdriver Blade
blade_thickness = 2.2;

// Length of Screwdriver Blade
blade_length = 2;

// Length of Screwdriver Edge 45 Degrees Taper
blade_taper = 0.4;

// Use this to correct for your printer's oversizing. Set to 0 to get STL file exactly as designed.
printer_oversizing = 0.5;

// Length of Hexagonal Shaft near Blade
hexagonal_shaft_length = 30;

// Wrench Size in mm that fits on Hexagonal Shaft
hexagonal_shaft_wrench_width = 10;

// Size of Allen Key that can be inserted into Handle End
allen_key_width = 6;

// Length of Main Handle
handle_length = 25;

// Diameter of Main Handle
handle_diameter = 25;

// Number of Faces of Main Handle
handle_polygon_faces = 6;

// Length of Transitions between Blade/Hexagonal Shaft/Main Handle
transition_length = 5;

// Constant used for consistent meshing, should not normally be changed.
epsilon = 0.01;

tol = printer_oversizing;

th_blade = blade_thickness  - tol;
l_blade = blade_length - blade_taper;
taper = blade_taper;

l_hexshaft = hexagonal_shaft_length;
w_hexkey = hexagonal_shaft_wrench_width;
l_handle = handle_length;
l_transition = transition_length;
w_key = allen_key_width;

d_handle = handle_diameter;
faces_handle = handle_polygon_faces;

difference ()
{
    union ()
    {
        // Hex Shaft
        translate ([0, 0, -l_hexshaft - l_transition])
                cylinder (h = l_hexshaft, d = w_hexkey/cos (30) - tol, $fn = 6);

        // Hex Shaft/Handle Transition
        hull ()
        {
            translate ([0, 0, -l_hexshaft - l_transition])
                cylinder (h = epsilon, d = w_hexkey/cos (30) - tol, $fn = 6);

            translate ([0, 0, -l_hexshaft - 2 * l_transition])
                rotate ([0, 0, 180/faces_handle])
                    cylinder (h = epsilon, d = d_handle, $fn = faces_handle);
        }

        //Handle
        translate ([0, 0, -l_hexshaft - l_handle - 2 * l_transition])
            rotate ([0, 0, 180/faces_handle])
                cylinder (h = l_handle, d = d_handle, $fn = faces_handle);

        // Handle Chamfer
        translate ([0, 0, -l_hexshaft - l_handle - 2* l_transition - 1])
            rotate ([0, 0, 180/faces_handle])
                cylinder (h = 1, d1 = d_handle - 1, d2 = d_handle, $fn = faces_handle);
    }

    translate ([0, 0, -l_hexshaft - l_handle - 2 * l_transition - 1 - epsilon])
        cylinder (h = l_handle, d = w_key/cos (30) + tol, $fn = 6);
}

// Blade Chamfer
hull ()
{
    translate ([0, 0, -l_transition])
        cylinder (h = epsilon, d = w_hexkey/cos (30) - tol, $fn = 6);

    translate ([0, 0, 0])
        cube ([blade_width, th_blade, epsilon], center = true);
}

// Blade
hull ()
{
    translate ([0, 0, 0])
        cube ([blade_width, th_blade, epsilon], center = true);

    translate ([0, 0, l_blade])
        cube ([blade_width, th_blade, epsilon], center = true);

    translate ([0, 0, l_blade + taper])
        cube ([blade_width, th_blade - taper, epsilon], center = true);
}
```


[User]
I'd like to create a custom round belt pulley generator, similar to the one described in the text. I want the user to be able to specify all the important dimensions as parameters, but I’m also hoping for a slightly different approach to some features.

Here’s the general functionality I’m looking for:

**Core Parameters:**

*   **Belt Diameter:** The diameter of the round belt that the pulley will use.
*   **Number of Belts:** The number of belt grooves the pulley should have.
*   **Pulley Diameter (Inner):** The diameter of the pulley measured at the *inside* of the belt grooves.
*   **Pulley Height:** The overall thickness of the main pulley body.
*   **Flange Height:**  Instead of predefined "Low," "Medium," and "High" options, I’d like this to be a numeric value that represents the height of the flange above the pulley surface.
*   **Axel Diameter:** The diameter of the central hole for the axle.
*   **Hub Height:** The height of a hub that extends from the pulley, 0 for no hub.
*   **Hub Diameter:** The outer diameter of the hub.
*   **Number of Attachment Screws:**  An option to choose how many mounting screw holes to include, with options being 0, 1, 2, 3, or 4.
*    **Screw Hole Diameter:** The diameter of the holes for the mounting screws.
*   **Nut Shape:**  A choice between "No nut trap," "Square," or "Hex" for the mounting screw nut traps.
*   **Nut Width:** The width across the flats of the nut to be trapped.
*   **Nut Thickness:** The thickness of the nut to be trapped.
*    **Nut Spacing:** The distance from the outer edge of the axel hole to the inside face of the nut trap.

**Design Details:**

*   The pulley should be a cylindrical shape.
*   Belt grooves should be created via a rotational extrusion, with the user-specified number of grooves. The spacing should be evenly distributed across the pulley height (like in the example).
*   The flange should extend from the pulley sides as specified, not an absolute function of the belt size.
*    The hub should be a cylinder, placed flush with the main pulley cylinder, on one side.
*   The axel hole should go all the way through the pulley and hub.
*   If a nut trap is requested, it should be generated at each screw location, with the shape and dimensions provided.
*   Mounting screw holes should be evenly spaced around the hub, with an appropriate number of holes, if any, as dictated by user input.

**General Requirements:**

*   The design should be parametric using user-defined variables for all the dimensions.
*   I don't need any special libraries or anything like that, but if it would help, I'm okay with using the basic OpenSCAD primitives and the rotate_extrude modifier.
*   I want the design to be clear, and easy to understand the code.

Can you generate the necessary OpenSCAD file(s) to achieve this?

[Assistant]
Round-Belt_Pulley_Creator_2-1.scad:
```
/* [Parameters] */
// .     All Dimensions are in MM
Belt_Diameter = 2.1   ;
//.
Number_Of_Belts = 1 ;
// .     Pulley Diameter (at inside of belt)
Pulley_Diameter = 20.1;
// .     (Thickness of Pulley)
Pulley_Height = 12.1;
// .   Flange Height above Pulley Height
Flange_Height = "Medium"; // [Low, Medium, High]
// .
Axel_Diameter=3.1;
//.     Use Hub Height = 0 for no hub.
Hub_Height=12.1;
// .
Hub_Diameter=15.1;

// .
Number_of_Attachment_Screws = "One";  // [None, One, Two, Three, Four]
// .    Size of Attachment Screw Hole(s)
Screw_Hole_Diameter=3.1;
// .    Do you want a nut trap?
Nut_Shape = "Hex"; //[No nut trap, Square, Hex]
// .     Width of nut (across the flats -- wrench size)
Nut_Width =5.5;
// .
Nut_Thickness=2.25;
// .     Distance from outside of axel hole to inside face of nut
Nut_Spacing=2.1;

/* [Hidden] */
$fn=100;
Pulley_Radius = Pulley_Diameter/2;
 Spacing = Pulley_Height/(Number_Of_Belts + 1);
       echo ("Spacing -- ", Spacing);

/*  Pulley Construction Modules */

    function Pulley_Outside_Diameter() =
        (
        Flange_Height == "Low" ?
        Pulley_Diameter + (Belt_Diameter)
        :
        Flange_Height == "High" ?
        Pulley_Diameter + (3 * Belt_Diameter)
        :
        Pulley_Diameter + (2 * Belt_Diameter)
        );

    module  PulleyCreator() {
            cylinder(d=Pulley_Outside_Diameter(), h=Pulley_Height,  center=false);
        }

    module EachBeltGroove()
        {
        translate([((Pulley_Diameter/2)+(Belt_Diameter/2)), 0, 0
            ])
       color("red") circle(d=Belt_Diameter, $fn=100) ;
     translate([(
            (Pulley_Diameter/2)+(Belt_Diameter/2)), 0, 0])
       color("blue")
            polygon(points=[[0,-Belt_Diameter/2], [2*Belt_Diameter,-2*Belt_Diameter], [2*Belt_Diameter,2*Belt_Diameter], [0,Belt_Diameter/2]]);
       }

  module BeltGroovesKnockout()
        {
            for (Count=[1:1:Number_Of_Belts])
                translate ([0,Count * Spacing,0])
                    EachBeltGroove();
        }

 module BeltGrooves()
        {
            color("lightgreen")
            rotate_extrude(convexity = 10, $fn = 100)
            BeltGroovesKnockout();
        }

// Hub Creation Module
    module HubCreator()
    {
    translate([0, 0, Pulley_Height- 0.01]) cylinder(r = Hub_Diameter/2, h = Hub_Height, center = false);
    }

// Axel Hole Creation Module
    module AxelHole()
    translate ([0,0, -0.1 * (Pulley_Height + Hub_Height)])
    cylinder(r=Axel_Diameter/2,h = 1.2 * (Pulley_Height + Hub_Height))
    ;

// Nut Trap Creation Modules

     module NutTrapBody()
       translate([0, -Nut_Width/2,0])
       color("Green") {
        cube([Pulley_Diameter, Nut_Width, Nut_Thickness]);
       }

    module NutTrapTip()

      if (Nut_Shape == "Square")
        {
            {
            translate([-Nut_Width/2, -Nut_Width/2,0])
            cube([Nut_Width/2,Nut_Width, Nut_Thickness]);}
            }
      else
          {
              cylinder(d=(2*Nut_Width/sqrt(3)), h=1.1*Nut_Thickness, center=false, $fn=6);
              }

    module NutTrapSlug()
       if (Nut_Shape != "No nut trap")
         {
         rotate([0,270 ,180])
             translate([ScrewHoleElevation(), 0, (Axel_Diameter/2) +Nut_Spacing])
          union()
            {
             NutTrapBody();
             NutTrapTip();
            }
        }
 // Screw Hole Creation Module
    module ScrewHole()
        rotate([0,90,0])
        translate ([-ScrewHoleElevation(), 0, 0])
        cylinder( d=Screw_Hole_Diameter,
            h = 1.1* (Pulley_Diameter + Hub_Diameter)/2);

    function ScrewHoleElevation()=
        (
        Hub_Height > 0 ?
        Pulley_Height + Hub_Height/2
       :
        Pulley_Height/2
        );

// Position the designated number of Screw Holes and Nut Traps

        module ScrewAndNutTrapKnockout()
        {if (Number_of_Attachment_Screws == "One")
            {NutTrapSlug();
            ScrewHole();}
        if (Number_of_Attachment_Screws == "Two")
            {NutTrapSlug();
            ScrewHole();
              rotate([0,0,90])
                {NutTrapSlug();
                ScrewHole();
                }
            }
            if (Number_of_Attachment_Screws == "Three")
            {NutTrapSlug();
            ScrewHole();
              rotate([0,0,120])
                {NutTrapSlug();
                ScrewHole();
                }
                rotate([0,0,240])
                {NutTrapSlug();
                ScrewHole();
                }
            }
            if (Number_of_Attachment_Screws == "Four")
                {NutTrapSlug();
                ScrewHole();
                  rotate([0,0,90])
                    {NutTrapSlug();
                    ScrewHole();}
                    rotate([0,0,180])
                    {NutTrapSlug();
                    ScrewHole();}
                   rotate([0,0,270])
                    {NutTrapSlug();
                    ScrewHole(); }
            }
            else
            ;
        }

// Assemble the components

difference()
   {
       union()
     {PulleyCreator();
         HubCreator();
         }

        BeltGrooves();
        ScrewAndNutTrapKnockout();
        AxelHole();

    }

```


[User]
I need a parametric OpenSCAD design for creating flat belt pulleys. I'd like to be able to control a variety of features, so it needs to be flexible.

Specifically, I need to be able to specify:

*   **Belt Slot Dimensions:** I need to define the width and depth of the belt slot that the belt will sit in.
*   **Number of Belts:**  The pulley should be able to accommodate multiple parallel belts, so I need to be able to set how many belt grooves there are.
*   **Pulley Diameter:** I need to be able to specify the diameter of the pulley, measured at the *inside* of the belt slot.
*   **Pulley Height:** This would be the overall thickness of the main pulley body.
*   **Axle Diameter:**  I need to set the diameter of the hole that goes through the center for the axle.
*   **Hub:**  The pulley can optionally have a hub. I need to be able to set the height and diameter of that hub.  A hub height of zero should indicate that no hub is needed.
*   **Attachment Screws:**  I need to be able to specify how many attachment screws there are – none, one, two, three, or four.
*   **Screw Hole Diameter:**  I need to control the size of the screw holes.
*   **Nut Traps:**  The design should optionally include nut traps for the mounting screws.  I need to be able to choose between no nut trap, square nut traps, or hex nut traps.
*   **Nut Dimensions:**  For the nut traps, I need to specify the width of the nut (across flats) and the thickness of the nut.
*   **Nut Spacing:**  I need to be able to specify how far the nut trap is positioned from the outside of the axle hole.

I'd also like to use the `$fn` variable to control the overall smoothness of curves. I don't have any specific library needs, but please make sure the code is well organized and easy to follow and modify. I expect to get one or more .scad files in the end to achieve this.

[Assistant]
Flat_Belt_Pulley_Creator_1-1.scad:
```
/* [Parameters] */
// .     All Dimensions are in MM
Belt_Slot_Width = 2.1   ;
//.
Belt_Slot_Depth = 1.1 ;
// .
Number_Of_Belts = 1 ;
// .     Pulley Diameter (at inside of belt)
Pulley_Diameter = 20.1;
// .     (Thickness of Pulley)
Pulley_Height = 12.1;
// .
Axel_Diameter=3.1;
//.     Use Hub Height = 0 for no hub.
Hub_Height=12.1;
// .
Hub_Diameter=15.1;

// .
Number_of_Attachment_Screws = "One";  // [None, One, Two, Three, Four]
// .    Size of Attachment Screw Hole(s)
Screw_Hole_Diameter=3.1;
// .    Do you want a nut trap?
Nut_Shape = "Hex"; //[No nut trap, Square, Hex]
// .     Width of nut (across the flats -- wrench size)
Nut_Width =5.5;
// .
Nut_Thickness=2.25;
// .     Distance from outside of axel hole to inside face of nut
Nut_Spacing=2.1;

/* [Hidden] */
$fn=100;
Pulley_Radius = Pulley_Diameter/2;
 Spacing = Pulley_Height/(Number_Of_Belts + 1);
       echo ("Spacing -- ", Spacing);

/*  Pulley Construction Modules */

    function Pulley_Outside_Diameter() =
        Pulley_Diameter + (2 * Belt_Slot_Depth);

    module  PulleyCreator() {
            cylinder(d=Pulley_Outside_Diameter(), h=Pulley_Height,  center=false);
        }

    module EachBeltGroove()
        {
        translate([(
            (Pulley_Diameter/2)), 0, 0])
        color("blue")
polygon(points=[[0,Belt_Slot_Width/2], [Belt_Slot_Depth +0.1, Belt_Slot_Width/2], [Belt_Slot_Depth +0.1, -Belt_Slot_Width/2], [0, -Belt_Slot_Width/2], [0,Belt_Slot_Width/2]]);
 /*           polygon(points=[[0,-Belt_Slot_Width/2], [2*Belt_Slot_Width,-2*Belt_Slot_Width], [2*Belt_Slot_Width,2*Belt_Slot_Width], [0,Belt_Slot_Width/2]]);
            */
       }

  module BeltGroovesKnockout()
        {
            for (Count=[1:1:Number_Of_Belts])
                translate ([0,Count * Spacing,0])
                    EachBeltGroove();
        }

 module BeltGrooves()
        {
           color("lightgreen")
            rotate_extrude(convexity = 10, $fn = 100)
            BeltGroovesKnockout();
        }

// Hub Creation Module
    module HubCreator()
    {
    translate([0, 0, Pulley_Height- 0.01]) cylinder(r = Hub_Diameter/2, h = Hub_Height, center = false);
    }

// Axel Hole Creation Module
    module AxelHole()
    translate ([0,0, -0.1 * (Pulley_Height + Hub_Height)])
    cylinder(r=Axel_Diameter/2,h = 1.2 * (Pulley_Height + Hub_Height))
    ;

// Nut Trap Creation Modules

     module NutTrapBody()
       translate([0, -Nut_Width/2,0])
       color("Green") {
        cube([Pulley_Diameter, Nut_Width, Nut_Thickness]);
       }

    module NutTrapTip()

      if (Nut_Shape == "Square")
        {
            {
            translate([-Nut_Width/2, -Nut_Width/2,0])
            cube([Nut_Width/2,Nut_Width,Nut_Thickness]);}
            }
       else
          {
              cylinder(d=(2*Nut_Width/sqrt(3)), h=1.1*Nut_Thickness, center=false, $fn=6);
              }

    module NutTrapSlug()
       if (Nut_Shape != "No nut trap")
         {
         rotate([0,270 ,180])
             translate([ScrewHoleElevation(), 0, (Axel_Diameter/2) +Nut_Spacing])
          union()
            {
             NutTrapBody();
             NutTrapTip();
            }
        }
 // Screw Hole Creation Module
    module ScrewHole()
        rotate([0,90,0])
        translate ([-ScrewHoleElevation(), 0, 0])
        cylinder( d=Screw_Hole_Diameter,
            h = 1.1* (Pulley_Diameter + Hub_Diameter)/2);

    function ScrewHoleElevation()=
        (
        Hub_Height > 0 ?
        Pulley_Height + Hub_Height/2
       :
        Pulley_Height/2
        );

// Position the designated number of Screw Holes and Nut Traps

        module ScrewAndNutTrapKnockout()
        {if (Number_of_Attachment_Screws == "One")
            {NutTrapSlug();
            ScrewHole();}
        if (Number_of_Attachment_Screws == "Two")
            {NutTrapSlug();
            ScrewHole();
              rotate([0,0,90])
                {NutTrapSlug();
                ScrewHole();
                }
            }
            if (Number_of_Attachment_Screws == "Three")
            {NutTrapSlug();
            ScrewHole();
              rotate([0,0,120])
                {NutTrapSlug();
                ScrewHole();
                }
                rotate([0,0,240])
                {NutTrapSlug();
                ScrewHole();
                }
            }
            if (Number_of_Attachment_Screws == "Four")
                {NutTrapSlug();
                ScrewHole();
                  rotate([0,0,90])
                    {NutTrapSlug();
                    ScrewHole();}
                    rotate([0,0,180])
                    {NutTrapSlug();
                    ScrewHole();}
                   rotate([0,0,270])
                    {NutTrapSlug();
                    ScrewHole(); }
            }
            else
            ;
        }

// Assemble the components

difference()
   {
       union()
     {PulleyCreator();
            HubCreator();}

        BeltGrooves();
        ScrewAndNutTrapKnockout();
        AxelHole();

    }

```


[User]
I need an OpenSCAD design for a customizable leg extension. Basically, it's a block that fits around a leg to add some height. I've already got some specific dimensions in mind, but the design needs to be parametric so I can adjust it later for different legs if needed.

The main block should have a rectangular hole in the middle where the leg sits. The dimensions of this hole need to be adjustable, with separate values for the leg's width and length. The block itself should have a certain thickness (the frame), and the height of the frame holding the leg needs to be adjustable as well, separate from the total height that the extension adds. The overall height is the frame height plus the extra height that the extension adds to the leg, and the total width and length will also be based on these input parameters.

For stability, I'd like a brim at the bottom of the block that is a little wider than the block itself. This brim should also be customizable in terms of its width.

I have a simple SCAD file that I made with just the basics if it helps illustrate what I'm talking about, but I'd love to see a more robust and parametric version of it.
```
// defined with millimeters

// Measure your legs and put in its size (width and length)
// Frame is the upper part that holds the leg inside. You can choose thickness and height of the frame
// Brim is the slightly wider part at the bottom (not the same brim that you define in your slicer)
// Total height of the item will be add_height + frame_height
// Total width of the item will be
//  at the top:    leg_width + frame_thickness * 2
//  at the bottom: leg_width + frame_thickness * 2 + brim_width * 2
// Total length of the item will be
//   leg_length + frame_thickness * 2

// Narrow part of the leg
leg_width = 20.4;  // [3:0.1:200]
// Wide part of the leg
leg_length = 32.2; // [3:0.1:200]
// How much height to add
add_height = 22;   // [2:1:150]

frame_thickness = 2; // [1:1:20]
frame_height = 10;   // [3:1:50]

// Brim at the bottom for better stability
brim_width = 2; // [0:1:5]

module brim (bw, bl) {
    rotate([90,30,0]) cylinder(r=bw*1.15,h=bl, $fn=3);
}

module legy(lw, ll, ah, ft, fh, bw) {
    union () {
        difference () {
            cube([lw + ft*2, ll + ft*2, ah+fh],center=true);
            translate ([0,0,ah/2]) cube([lw, ll, fh], center=true);
        }
        translate ([-1 * (lw/2 + ft),ll/2 + ft,((ah+fh)/-2)+bw*0.575]) brim(bw,ll + ft * 2);
        translate ([(lw/2 + ft),ll/2 + ft,((ah+fh)/-2)+bw*0.575]) brim(bw,ll + ft * 2);
    }
}

legy(leg_width, leg_length, add_height, frame_thickness, frame_height, brim_width);

```
I’d also appreciate it if the code is well commented, so I can understand what each part of it does. Thanks!

[Assistant]
Customizable_legs_extension.scad:
```
// defined with millimeters

// Measure your legs and put in its size (width and length)
// Frame is the upper part that holds the leg inside. You can choose thickness and height of the frame
// Brim is the slightly wider part at the bottom (not the same brim that you define in your slicer)
// Total height of the item will be add_height + frame_height
// Total width of the item will be
//  at the top:    leg_width + frame_thickness * 2
//  at the bottom: leg_width + frame_thickness * 2 + brim_width * 2
// Total length of the item will be
//   leg_length + frame_thickness * 2

// Narrow part of the leg
leg_width = 20.4;  // [3:0.1:200]
// Wide part of the leg
leg_length = 32.2; // [3:0.1:200]
// How much height to add
add_height = 22;   // [2:1:150]

frame_thickness = 2; // [1:1:20]
frame_height = 10;   // [3:1:50]

// Brim at the bottom for better stability
brim_width = 2; // [0:1:5]

module brim (bw, bl) {
    rotate([90,30,0]) cylinder(r=bw*1.15,h=bl, $fn=3);
}

module legy(lw, ll, ah, ft, fh, bw) {
    union () {
        difference () {
            cube([lw + ft*2, ll + ft*2, ah+fh],center=true);
            translate ([0,0,ah/2]) cube([lw, ll, fh], center=true);
        }
        translate ([-1 * (lw/2 + ft),ll/2 + ft,((ah+fh)/-2)+bw*0.575]) brim(bw,ll + ft * 2);
        translate ([(lw/2 + ft),ll/2 + ft,((ah+fh)/-2)+bw*0.575]) brim(bw,ll + ft * 2);
    }
}

legy(leg_width, leg_length, add_height, frame_thickness, frame_height, brim_width);

```


[User]
I'd like a custom keychain design, shaped like a house, that I can personalize with text and a couple of different shape variants. I'm envisioning something that I can easily print in two colors, using a different color for the text and rim.

Here are the specifics:

**Shape:**
*   The basic shape is a house with a slightly rounded outline.
*   There will be two different main body shapes, selectable as a variant. Variant 0 has a simple polygon for the inner part of the house, while Variant 1 adds a small angled extension to the top.

**Dimensions:**
*   I need to control the overall height and width using `scale_height` and `scale_width` parameters, with a default of about 25mm x 22mm (approx 1.0 for both scaling parameters).
*   The thickness of the keychain should be adjustable using a `thickness` parameter, default around 2.5mm.
*   A raised rim should go around the edge. The rim should have adjustable height and width parameters (`rim_height`, default 0.5 and `rim_width` default 1.2), and should be created as a separate extrusion that overlaps the main body.
*   The house shape should have rounded corners, adjustable using a `rounding` parameter, default 0.9.

**Hole:**
*   A circular hole should be included at a fixed location for the keyring attachment, with adjustable diameter (`hole_diam`, default 4.4mm).
*   The hole should have a raised rim, adjustable with the `hole_rim` parameter, default 1.6mm, and be a separate, circular extrusion around the inner hole.
*   The position of the hole should be controlled by `hole_x` (default 24mm) and `hole_y` (default 29mm) parameters.

**Text:**
*   I'd like to be able to add up to 3 lines of text, each on its own line, using the parameters `text_1`, `text_2`, and `text_3`.
*   The text size should be adjustable with a parameter (`text_size`, default 6).
*   The text position should be adjustable using `text_x` and `text_y` parameters (default 0 and 9.6 respectively).
*   I should be able to set the font for the text (default is "Arial:style=Bold").

**Other:**
*   I need to be able to control the `fn` for smooth curves. The default should be 70.

I think I've covered everything! I want this to be fully parametric, and I'd prefer it all be in one SCAD file, please. I don't need any external libraries for this design.

[Assistant]
Keytag.scad:
```
$fn = 70;

variant = 0;        //[0;1] model variant
scale_height = 1.7;   //default dimensions: [1.0] approx 25mmx22mm
scale_width = 1.8;
thickness = 2.5;
rim_height = 0.5;
rim_width = 1.2;
rounding = 0.9;

hole_diam = 4.4;
hole_rim = 1.6;
hole_x = 24;
hole_y = 29;

text_1 = "TEXT";
text_2 = "Text";
text_3 = "";
text_size = 6;
text_x = 0;
text_y = 9.6;
font = "Arial:style=Bold";

difference(){
    linear_extrude(thickness){
        offset(rim_width){
            house();
        }
    }
    translate([0, 0, thickness-rim_height])
    linear_extrude(thickness){
        house();
    }

    inner_hole();
}
hole();
text_();

module text_(){
    translate([text_x, text_y, 0.1])
    linear_extrude(thickness-0.1){
        text(text_1, text_size, font);
        translate([0, -text_size-text_size/5, 0])
        text(text_2, text_size, font);
        translate([0, (-text_size-text_size/5)*2, 0])
        text(text_3, text_size, font);
        }
}

module inner_hole(){
    translate([hole_x, hole_y, -0.1])
    cylinder(thickness+0.2, hole_diam/2, hole_diam/2);
}

module hole(){
    difference(){
        translate([hole_x, hole_y, 0])
        cylinder(thickness, hole_diam/2+hole_rim, hole_diam/2+hole_rim);
        inner_hole();
    }
}

module house(){
    scale([scale_width, scale_height]){
        offset(1*rounding)
        polygon([[0,1],[0,12],[6.5,18.5],[15,12],[15,1]]);
        translate([0.5, -0.8, 0])
        offset(0.9*rounding)
        if(variant == 1)
            polygon([[-2.5,10.7],[-3,11],[6,20],[17.5,11],[17.0,10.7],[6,19.3]]);
        else
            polygon([[-2.5,10.7],[-3,11],[6,20],[17.5,11],[17.0,10.7]]);
    }
}

```


[User]
Okay, so I'm looking to create a customizable drill bit organizer, and I'd like your help with the OpenSCAD code. I've already started something, but it's not as parametric as I'd like.

Basically, I need a tray with multiple bays to hold drill bits. Here are the parameters I want to be able to adjust:

*   **`bay_height`**: The length of the longest drill bit the tray will accommodate.
*   **`bay_width`**: The width of each bay, which dictates how wide each bit can be.
*   **`bay_depth`**: The depth of each bay, important for thicker drill bits.
*   **`number_bays`**: The number of bays in the tray.
*   **`wall_thickness`**: The thickness of all the walls and the base of the tray.
*   **`label_height`**: The height of a label slot, or 0 for no label slot at all.
*   **`label_depth`**: The depth of the label slot.

The design should consist of a base with the specified `wall_thickness`, and then the specified number of bays cut out. There should also be a finger slot for easier retrieval of the bits. If `label_height` is greater than 0, then there should be a label slot cut in the front of the design at the base.

I need the whole thing to be easily customized using these parameters in OpenSCAD. I'd like you to generate the OpenSCAD code for this, if you can. I'm not using any external libraries right now, but I don't have anything against them if it makes the code simpler.

[Assistant]
Tap_holder_V3.scad:
```
// length of the longest bit
bay_height = 107;

// width of bits side by side
bay_width = 14;

// diameter of thickest bit
bay_depth = 8;

// number of bays
number_bays = 5;

// thickness of all the walls including the base
wall_thickness = 2;

// label height (0 for no label space)
label_height = 0;

// do some preliminary calulations
total_width = wall_thickness+number_bays*(bay_width+wall_thickness);
total_height = (label_height==0) ? bay_height+2*wall_thickness : label_height+bay_height+3*wall_thickness;
total_depth = bay_depth+wall_thickness;

label_depth = 1;
difference(){
    // make a base
    cube([total_width,total_height,total_depth]);

    // cut out the bays
    y1_move = (label_height==0) ? wall_thickness : 2*wall_thickness+label_height;
    for(i=[0:1:number_bays-1]){
        translate([wall_thickness+i*(bay_width+wall_thickness), y1_move, wall_thickness])cube([bay_width,bay_height, bay_depth]);
    }

    // make a finger slot
    y2_move = (label_height == 0) ? total_height/2 : label_height+2*wall_thickness+bay_height/2;

    translate([0,y2_move,12.5+wall_thickness])rotate([0,90,0])cylinder(d=25,h=total_width);

    //make a label slot
    if(label_height!=0)
    translate([wall_thickness, wall_thickness,total_depth-label_depth])cube([total_width-2*wall_thickness,label_height,label_depth]);

}
```


[User]
I need a parametric clip design in OpenSCAD. It should be a rectangular clip with rounded corners, and have two holes for mounting. The clip needs to be defined by the following parameters:

*   `length_1`: The internal length of the long side of the clip.
*   `length_2`: The internal length of the short side of the clip.
*   `Thickness`: The thickness of the clip material.
*   `height`: The height of the clip.
*   `hole_dia`: The diameter of the mounting holes.

The clip should essentially be a U-shape with a rectangle bridging the open end, all with rounded corners. Specifically, the two "arms" of the U should extend along the `length_1` dimension, and the connecting "base" of the U will be along the `length_2` dimension. There should be a connecting rectangle across the open side of the U, so that it creates a roughly-rectangular shape with an opening. The entire shape should have rounded corners. The mounting holes should be placed along the `length_1` dimension, centered on the `length_2` dimension, and on the vertical center of the clip (`height/2`). Each mounting hole should be a cylinder with a countersunk region on its outer face.

I'd like the design to be fully parametric using these dimensions, and to be easily modifiable. Please generate a single .scad file with all of the needed code.

[Assistant]
Parametric_clip_retangular.scad:
```

length_1=52.2;
length_2=10.2;
Thickness=6;
height=12;
hole_dia=4;

module round2d(OR=3,IR=1){
    offset(OR)offset(-IR-OR)offset(IR)children();
}

$fn=100;
module clip(){
linear_extrude(height=height){
    fillet=Thickness/2.85;
round2d(OR=fillet,IR=fillet){
translate([-length_1/2-Thickness,0,0]) square([length_1+Thickness+Thickness,Thickness],false);
translate([length_1/2,-length_2,0]) square([Thickness,length_2],false);
translate([-length_1/2-Thickness,-length_2,0]) square([Thickness,length_2],false);
translate([-length_1/2-Thickness,-length_2-Thickness,0]) square([Thickness*1.5,Thickness],false);
translate([+length_1/2-Thickness/2,-length_2-Thickness,0]) square([Thickness*1.5,Thickness],false);
}
}
}

difference(){
clip();
rotate([90,0,0]) translate([length_1/4,height/2,-Thickness*2-Thickness/2]) cylinder(  Thickness*4, d1=hole_dia,  d2=hole_dia  );
    rotate([90,0,0]) translate([-length_1/4,height/2,-Thickness*2-Thickness/2]) cylinder(  Thickness*4, d1=hole_dia,  d2=hole_dia  );

rotate([90,0,0]) translate([length_1/4,height/2,-hole_dia/2.39]) cylinder(  hole_dia/2.38, d1=hole_dia,  d2=hole_dia*2  );

rotate([90,0,0]) translate([-length_1/4,height/2,-hole_dia/2.39]) cylinder(  hole_dia/2.38, d1=hole_dia,  d2=hole_dia*2  );

}
```


[User]
I'm looking to create a small, parametric shelf with integrated mounting brackets, and I need some help designing the OpenSCAD files for it. The overall design should be fairly simple, but I need to be able to customize the dimensions and some corner details.

Here's what I have in mind:

**Shelf Dimensions:**

*   I'd like to be able to set the shelf's overall height, but also have a separate front height (maybe for a slight lip).
*   The width and depth should be parametric too, of course.

**Bracket Details:**

*   I need mounting brackets on each side of the shelf. They should be offset from the edge.
*   The brackets need to have their own height, width, and length, so they can be adjusted to fit the mounting surface and be sturdy enough.
*   I'd like two holes in each bracket: one smaller hole closer to the back for mounting, and a larger hole further out, maybe a pilot hole for the screw?
*   I need to control the position of those holes relative to the bracket.

**Corner Details & Inset:**

*   I want rounded corners. It would be nice to individually control if the front corners are rounded or not.
*   I also want a small inset on the bottom of the shelf to look a little more polished; I need to control the inset's width and padding. This is going to be inset from the width (right and left). I think I need a few inset sections, maybe four total, two in the front and two in the rear of the shelf.

**Other Requirements:**

*   I would like to be able to control the `$fn` to adjust the print resolution for curved features.
*   I'd prefer it if everything prints without supports, if possible.
*   I need to use two M4 screws (or 6-32 screws) for mounting; keep that in mind for the hole sizes in the brackets.

I’m not sure exactly how to approach the inset or rounded corners for the shelf, so I hope you can help me with the more complex bits. I expect to be able to change the parameters easily. I think the base would just be a hull of several cubes and cylinders to get rounded corners. I hope that makes sense!

I'm hoping you can generate all the necessary `.scad` files, including any modules and parameters needed to make all of these things work. I don’t need any libraries, I think that can be implemented without.

[Assistant]
shelf-with-brakets.scad:
```
/*
 * Parametric Shelf with Brackets and Round Corners
 * Copyright (C) 2018
 * License: CC-BY-SA
 */

/* shelf dimensions */
$height = 17;
$front_height = 14;
$width = 140;
$depth = 90;

/* braket dimensions */
$bracket_offset = 10;
$bracket_height = 40;
$bracket_width = 15;
$bracket_length = 50;
$bracket_hole_height = 15;

/* inset and corners */
$corner_radius = 10;
$round_left_corner = 0;
$round_right_corner = 1;
$inset_width = 10;
$inset_padding = 6;

$fn = 60;

module bracket() {
    difference() {
        cube([$bracket_length, $bracket_width, $bracket_height]);

        translate([$bracket_length+5, $bracket_width + 0.1, $bracket_height+10])
        rotate([90, 0, 0])
        cylinder(h=$bracket_width+1, r=$bracket_height+10);

        translate([-0.1, $bracket_width / 2, $bracket_hole_height])
        rotate([0, 90, 0])
        cylinder(r=2.4, h=30);

        translate([15, $bracket_width / 2, $bracket_hole_height])
        rotate([0, 90, 0])
        cylinder(r=4.25, h=30);
    }
}

module shelf() {
    difference() {
        hull() {
            cube([$corner_radius, $width, $height]);

            translate([$depth-$corner_radius, $corner_radius * $round_left_corner, 0])
            if ($round_left_corner) {
                cylinder(h=$front_height, r=$corner_radius);
            } else {
                cube([10, $corner_radius, $height]);
            }

            translate([$depth-$corner_radius, $width-$corner_radius, 0])
            if ($round_right_corner) {
                cylinder(h=$front_height, r=$corner_radius);
            } else {
                cube([$corner_radius, $corner_radius, $height]);
            }
        }

        translate([0, 0, -0.1])
        hull() {
            translate([0, $inset_padding+$corner_radius, 0])
                cylinder(h=$inset_width, r1=$corner_radius, r2=$corner_radius/2);

            translate([0, $width-$inset_padding-$corner_radius, 0])
                cylinder(h=$inset_width, r1=$corner_radius, r2=$corner_radius/2);

            translate([77 - $corner_radius, $inset_padding+$corner_radius, 0])
                cylinder(h=$inset_width, r1=$corner_radius, r2=$corner_radius/2);

            translate([77 - $corner_radius, $width-$inset_padding-$corner_radius, 0])
                cylinder(h=$inset_width, r1=$corner_radius, r2=$corner_radius/2);
        }
    }

    translate([0, $bracket_offset, $front_height])
        bracket();

    translate([0, $width-$bracket_offset-$bracket_width, $front_height])
        bracket();
}

rotate([0, -90, 0])
shelf();

```


[User]
I'm looking to create a hexagonal grid pattern in OpenSCAD, but I want to be able to control quite a few things about it.

I need a main module, probably called something like `hex_lattice`, that will generate the whole pattern. I need it to be parametric, so I can adjust the following:

*   `radius`: This will be the circumscribed radius of the smaller, inner hexagons.
*   `latticeWidth`: This controls how many rows of hexagons I have.
*   `latticeLength`: This determines the number of hexagons in each row.
*   `spacing`:  This sets the distance between the inner hexagons and creates the "lines" of the pattern.  Think of it as a "line thickness" surrounding each hexagon.
*   `height`: The extrusion height for the whole pattern.

The pattern itself should be made of two sets of hexagons. The first set, the outer shapes, should be generated so that they have a circumradius of `radius + spacing * 2` and the second set, the inner shapes, should be generated with a circumradius of `radius`. The inner ones should be subtracted from the outer ones, so the `spacing` value actually creates gaps between them. All of the hexagons in a row should be aligned along the x axis. However, the rows should alternate so that they are offset from each other in the x direction by half of the distance between two adjacent hexagons. The spacing between any two rows of hexagons should be controlled by the `radius` and `spacing`. The hexagons should be rotated by 30 degrees in Z.

Could you generate an OpenSCAD file, or set of files that accomplish this? I don't need any libraries or anything fancy.

[Assistant]
Hex.scad:
```
radius = 12;
latticeWidth = 4;
latticeLength = 3;
spacing = 10;
height = 1;

difference() {
    linear_extrude(height) {
        for(j = [0:latticeWidth-1]) {
            translate([(((sqrt(3)*radius)+spacing)/2)*(j%2),sqrt(pow((((((sqrt(3)))*radius)+spacing)),2)-(pow(((((sqrt(3)*radius)+spacing))/2),2)))*j,0]) {
                for(i = [0:latticeLength-1]) {
                    translate([((sqrt(3)*radius*i)+spacing*i),0,0]) {
                        rotate([0,0,30]) {
                            circle(((sqrt(3)*radius)+(spacing*2))/sqrt(3), $fn = 6);
                        }
                    }
                }
            }
        }
    }
    linear_extrude(height) {
        for(j = [0:latticeWidth-1]) {
            translate([((sqrt(3)*radius)+spacing)/2*(j%2),sqrt((pow(((sqrt(3)*radius)+spacing),2))-(pow((((sqrt(3)*radius)+spacing))/2,2)))*j,0]) {
                for(i = [0:latticeLength-1]) {
                    translate([(sqrt(3)*radius*i)+spacing*i,0,0]) {
                        rotate([0,0,30]) {
                            circle(radius, $fn = 6);
                        }
                    }
                }
            }
        }
    }
}
```


[User]
I'm looking to create a parametric Borromean Weave structure in OpenSCAD. I want to be able to control the following aspects: the angle of the mesh lines relative to vertical, the thickness (radius) of each line segment, the length of those line segments, and the number of repeating Borromean rings along both the x and y axes.

Specifically, the weave is made up of three interlocking sets of rings. Each individual "ring" in a set is actually three line segments connected to each other with sphere joints, where each line segment is a cylinder and the joins are spheres at the ends of the cylinders. The rings themselves form a mesh. The entire structure of three sets of rings is constructed so each set of rings is translated by some X value. The individual sets of rings form rows and columns along the x and y axis where every other row is offset in the x direction.

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

*   `angle`: This will control the tilt of the line segments relative to a vertical plane. It should be an angle in degrees between 1 and 89.
*   `radius`: This controls the thickness (radius) of the cylinder segments and the size of the connecting spheres.
*   `length`: This controls the length of each of the cylinder segments.
*   `rows`: This integer determines the number of rings in the y-axis.
*   `columns`: This integer determines the number of rings in the x-axis.

I need this to be generated as a single SCAD file. Thanks!

[Assistant]
Mesh.scad:
```
$fn = 10;

/* [Parameters] */
//The angle of the lines of the mesh from the vertical
angle = 50; // [1:89]
//Thickness of line segments
radius = 3;
//Length of line segments
length = 30;
//Number of Borromean rings along the y-axis
rows = 3;
//Number of Borromean rings along the x-axis
columns = 4;

triple(length, radius, angle, rows, columns);

module triple(length, radius, angle, rows, columns) {
    for(i = [0:2]) {
        translate([(((length*sin(90-angle)))*i),0,0]) {
            xLayout(length, radius, angle, rows, columns);
        }
    }
}

module xLayout(length, radius, angle, rows, columns) {
    for(i = [0:columns-1]) {
        translate([(((cos(60)*length*sin(90-angle))+(length*sin(90-angle)))*i),(sin(60)*length*sin(90-angle))*(i%2),0]) {
            yLayout(length, radius, angle, rows);
        }
    }
}

module yLayout(length, radius, angle, rows) {
    for(i = [0:rows-1]) {
        translate([0,((sin(60)*length*sin(90-angle))*i)*2,0]) {
            tri(length, radius, angle);
        }
    }
}

module tri(length, radius, angle) {
    for(i = [0:2]) {
        rotate([0,angle,i*120]) {
            tube(length, radius);
        }
    }
}

module tube(length, radius) {
    sphere(radius);
    rotate([0,90,0]) {
        cylinder(length, radius, radius);
    }
    translate([length,0,0]) {
        sphere(radius);
    }
}

/*
CORE FORMULAS:

X DISTANCE:
((cos(60)*length*sin(90-angle))+(length*sin(90-angle)))

Y DISTANCE:
(sin(60)*length*sin(90-angle))

*/
```


[User]
I'm looking to design a customizable polygonal planter and saucer using OpenSCAD. I'd like a design that allows me to specify several parameters to control the size and shape of both the planter and a matching saucer.

Here's what I need:

**Planter:**

*   **Overall Dimensions:**
    *   Planter width (in mm) - adjustable
    *   Planter height (in mm) - adjustable
*   **Shape:**
    *   Number of sides (for the polygonal top) - adjustable
    *   A cylindrical base, transitioning to the polygonal top.
    *   Taper width percentage: defines the width of the transitional section as a percentage of the total width - adjustable
    *   Taper height percentage: defines the height of the transitional section as a percentage of the total height - adjustable
    *   Bottom diameter percentage: the ratio of the cylindrical base's diameter to the total planter width - adjustable
    *   Corner radius for the polygonal shape - adjustable
*   **Wall Thickness:**
    *   Wall thickness (in mm) - adjustable
*   **Drainage:**
    *   Option to include a drain hole or not
    *   Drain hole diameter (in mm) - adjustable
*   I'd like a rounded transition between the cylindrical bottom and the start of the taper.

**Saucer:**

*   The saucer should have a cylindrical base that fits the planter base, but slightly larger to accommodate it, and should generally follow the taper of the planter above the base, again with an allowance.
    *  Include 'bumps' on the inside to support the planter.
*   The height of the saucer shouldn't exceed the height of the tapered portion of the planter.

**General:**

*   I'd like the option to render just the planter, just the saucer, or both at the same time (positioned side-by-side).
*   I prefer to keep the complexity low with Minkowski operations for the rounding. I'm not concerned about specific performance.
*  Please use the standard OpenSCAD libraries rather than BOSL or other libraries.

I think that's everything! Let me know if you have any questions.

[Assistant]
poly.scad:
```
// polygonal planter
// 2018-07-24 Lucina
// preview[view:south east, tilt:top diagonal]
/* [dimensions] */
// planter width (mm)
planterWidth = 100;  //[30:5:300]
// planter height (mm)
planterHeight = 62;  //[30:5:300]
// wall thickness (mm)
wall = 1.2; // [.6:.1:10]
/* [shape] */
// number of sides
numberOfSides = 6;   //[4:1:16]
// ratio of the width of the part between the cylindrical bottom and the polygonal top to the total width
taperWidthPercent = 85;  //[20:5:100]
// ratio of the height of the part between the cylindrical bottom and the polygonal top to the total height
taperHeightPercent = 45;   //[20:5:50]
// ratio of the cylindrical bottom diameter to the total width
bottomDiamPercent = 70;   //[20:5:100]
// planter corner radius (mm)
cornerRad = 1;   //[1:1:20]
/* [thing selection] */
// which model to render: planter or saucer
selection = "planter";   // [planter, saucer, both]
// cut out drain hole
drainHole = "yes";   // [yes, no]
// drain hole (mm)
hole = 8;   //[2:1:15]

/* [hidden] */
$fn = 60;
x = 0; y = 1; z = 2;
allow = 4;
taperWidth = (taperWidthPercent/100)*planterWidth;
taperHeight = (taperHeightPercent / 100)*planterHeight;
bottomDiam = (bottomDiamPercent/100)*planterWidth;
bottomHeight = 1.25*wall;
bottomRad = bottomHeight/2 - .2;
step = 360 / numberOfSides;
last = 360-step;
maxSaucerHeight = min(15, taperHeight);

module rshape(xx, yy, zz, rr) {
   hull() {
      for ( angle = [0:step:last] ) {
         rotate([0, 0, angle])
            translate([xx/2-rr, 0, 0])
               cylinder(h=zz, r=rr);
      }
   }
}

module fcube(xx, yy, zz, rr) {
   translate([-xx/2, -yy/2, rr])
      minkowski() {
         cube([xx-2*rr, yy-2*rr, zz-2*rr]);
         sphere(r=rr);
      }
}
module fcylinder(z, x, rad) {
   translate([0, 0, rad])
      minkowski() {
         cylinder(h=z-2*rad, d=x-2*rad);
            sphere(rad);
      }
}
module planter() {
   difference() {
      union() {
         fcylinder(bottomHeight, bottomDiam, bottomRad);
         hull() {
            translate([0, 0, bottomHeight-bottomRad])
               cylinder(h=bottomRad, d=bottomDiam);
            translate([0, 0, taperHeight - .001])
               rshape(taperWidth, taperWidth, .001, cornerRad);
         }
         hull() {
            translate([0, 0, taperHeight - .001])
               rshape(taperWidth, taperWidth, .001, cornerRad);
            translate([0, 0, planterHeight - .001])
               rshape(planterWidth, planterWidth, .001, cornerRad);
         }
      }
      union() {
         hull() {
            translate([0, 0, bottomHeight])
               cylinder(h=bottomRad, d=bottomDiam-2*wall);
            translate([0, 0, taperHeight - .001])
               rshape(taperWidth-2*wall, taperWidth-2*wall, .001, cornerRad);
         }
         hull() {
            translate([0, 0, taperHeight - .001])
               rshape(taperWidth-2*wall, taperWidth-2*wall, .001, cornerRad);
            translate([0, 0, planterHeight - .001])
               rshape(planterWidth-2*wall, planterWidth-2*wall, .001, cornerRad);
         }
         if ( drainHole == "yes" ) {
            translate([0, 0, -bottomHeight])
               cylinder(h=2*bottomHeight, d=hole);
         }
      }
   }
}
module saucer() {
   fcylinder(bottomHeight, bottomDiam+allow, bottomRad);
   // bumps
   intersection() {
      for ( n = [0:6] ) {
         rotate([0, 0, n*360/6])
            translate([.25*planterWidth, 0, 0])
               sphere(r=wall+2);
      }
      cylinder(h=wall+2, d= planterWidth);
   }
   difference() {
      union() {
         hull() {
            translate([0, 0, bottomHeight-bottomRad])
               cylinder(h=bottomRad, d=bottomDiam+allow);
            translate([0, 0, taperHeight+bottomHeight - .001])
               rshape(taperWidth+2*allow, taperWidth+2*allow, .001, cornerRad);
         }
      }
      union() {
         hull() {
            translate([0, 0, bottomHeight-2*bottomRad])
               cylinder(h=bottomRad, d=bottomDiam+allow-2*wall);
            translate([0, 0, taperHeight+bottomHeight - .001])
               rshape(taperWidth+2*allow-2*wall, taperWidth+2*allow-2*wall, .001, cornerRad);
         }
      }
   }
}
if ( selection == "saucer" ) {
   intersection() {
      saucer();
      cylinder(h=maxSaucerHeight, d=planterWidth+2);
   }
}
if ( selection == "planter" ) {
   planter();
}
if ( selection == "both" ) {
   translate([-planterWidth/2-3, 0, 0])
      intersection() {
         saucer();
         cylinder(h=maxSaucerHeight, d=planterWidth+2);
      }
   translate([planterWidth/2+3, 0, 0])
      planter();
}
```


[User]
Hey, I'm looking to create a parametric "mouse ear" design in OpenSCAD. These are small circular tabs often added to the corners of 3D printed parts to help prevent warping or lifting during printing, especially when printing with materials that tend to shrink.

I'd like the design to be configurable in a few ways:

First, I need to control the height (thickness) of the ear. I want to be able to adjust this as needed for different materials.

Second, I need to control the radius of the ear. This also needs to be variable to suit different part sizes.

Third, I want to be able to choose what portion of a circle the ear uses. I need to support four shapes: a quarter circle, a half circle, three-quarters of a circle, and a full circle.

So essentially, the basic shape will be a disk with controllable thickness and radius, and the user can choose to use a full circle, a quarter, a half, or three-quarters of it. Please use default values that work reasonably well, and include comments for each variable and module to explain how they are used and what they do.

I don't need any specific OpenSCAD libraries for this simple design, just the standard functions should do.

[Assistant]
mouse_ears.scad:
```
// height
h   = 0.4;
// radius
r   = 20;
// style
obj = 2; // [ 0: qtr, 1: half, 2: 3 qtr, 4: whole ]

/* [Hidden] */

$fa = 1;
$fs = 0.5;

module choose() {
  if (obj == 0) {
    qtr();
  } else if (obj == 1) {
    half();
  } else if (obj == 2) {
    3qtr();
  } else {
    circle(r);
  }
}

module 3qtr () {
  difference() {
      circle(r);
      translate([0.5,0.5]) square(r);
  }
}

module half() {
  intersection() {
    circle(r);
    translate([0,-r]) square(2*r);
  }
}

module qtr() {
  intersection() {
    circle(r);
    square(r);
  }
}

linear_extrude(h) choose(obj);

```


[User]
Okay, I need an OpenSCAD design for a laser-cut box with finger joints. It should have several display modes: assembled, unfolded, optimized, and projection.

The 'assembled' mode will show the box in its assembled form. 'Unfolded' will lay out all the parts flat. 'Optimized' will also lay them flat, but arranged to minimize material usage. And 'projection' will be similar to 'optimized' but with a projection for easier DXF export.

Here are the parameters:

*   **Outer dimensions:** I need to be able to set the width, length, and height of the box as parameters.
*   **Material thickness:** This will be a global parameter for the thickness of the material.
*   **Number of teeth:** I need to be able to specify the number of finger joints along the width (teethW), length (teethL), and height (teethH).
*   **Tolerance:** A global parameter to control the tightness of the fit of the finger joints; positive values narrow the teeth and negative values widen them.
*   **Slit for handling:** An optional slit for carrying the box. If enabled, I should be able to set:
    *   The rounding radius for the slit's ends (slitR).
    *   The length of the slit (slitL).
    *   The thickness of the material left in the slit area (slitThickness).
*   **Chamfered corners:**  A parameter for the radius of chamfered top corners (chamferR), which can be disabled by setting it to 0.

The design needs to be fully parametric, so all dimensions should be based on those global variables. I'm aiming for something that's laser-cuttable from plywood, but being able to 3D print a small version would be a plus too.

I don't have any existing OpenSCAD files that I want to use, so you can build everything from scratch. Also, I don't need to use any external libraries. Could you provide me with all the necessary .scad files? I'll need to be able to adjust the tolerance, as I've found that 0.3 is too loose.

[Assistant]
box.scad:
```
// options: assembled, unfolded, optimized, projection
mode = "unfolded"; 	// parts are layed flat
//mode = "assembled"; 	// box representation
//mode = "optimized"; 	// parts are layed flat and positioned to minimize waste material
//mode = "projection"; 	// projection of optimized mode, for exporting dxf

$fn = 40;

// thickness of the material
thickness = 4;

// outter dimensions of the box
width = 280;
length = 230;
height = 115;

// number of teeth along width
teethW = 9;
// number of teeth along length
teethL = 7;
// number of teeth along height
teethH = 5;

// add or remove slit for handling
slitPresent = true;
// slit rounding radius
slitR = 15;
// slit length
slitL = 100;
// handle thickness
slitThickness = 20;

// top corners chamfer radius, 0 to disable
chamferR = 8;

// positive value narrows the teeth, negative - widens them
tolerance = 0.3;

if(mode=="projection")
	projection()
	box();
else
	box();

module box()
{
	angle = mode=="assembled"?90:0;

	if(mode!="optimized" && mode!="projection")
	{
		bottom();
		right(angle);
		left(angle);
		rear(angle);
		front(angle);
	}
	else
	{
		translate([height, 0, 0])
		{
			bottom();
			right(angle);
			left(angle);
		}

		translate([width/2 + width + 1, -height/2 - 1, 0])
		rotate([0, 0, 180])
		translate([-width/2, -height/2 - length, 0])
		rear(angle);

		translate([0, -1, 0])
		front(angle);
	}
}

module bottom()
{
	wall(width, length, thickness, [teethW, teethL, teethW, teethL], [0, 0, 0, 0]);
}

module right(angle)
{
	translate([width, 0, 0])
	rotate([0, -1*angle, 0])
	difference()
	{
		wall(height, length, thickness, [teethH, teethL, teethH, 0], [0, 1, 0, 0], [0, 0, chamferR, chamferR]);
		if(slitPresent)
			hull()
			{
				for(i = [-1:2:1])
				translate([height - slitThickness - slitR, length/2 + slitL/2*i, -1])
				cylinder(r = slitR, h = thickness + 2);
			}
	}
}

module left(angle)
{
	rotate([0, angle, 0])
	translate([-height, 0, 0])
	difference()
	{
		wall(height, length, thickness, [teethH, 0, teethH, teethL], [0, 1, 0, 1], [chamferR, chamferR, 0, 0]);
		if(slitPresent)
			hull()
			{
				for(i = [-1:2:1])
				translate([slitThickness + slitR, length/2 + slitL/2*i, -1])
				cylinder(r = slitR, h = thickness + 2);
			}
	}
}

module front(angle)
{
	rotate([-1*angle, 0, 0])
	translate([0, -height, 0])
	wall(width, height, thickness, [0, teethH, teethW, teethH], [0, 1, 1, 1], [chamferR, 0, 0, chamferR]);
}

module rear(angle)
{
	translate([0, length, 0])
	rotate([angle, 0, 0])
	wall(width, height, thickness, [teethW, teethH, 0, teethH], [1, 1, 0, 1], [0, chamferR, chamferR, 0]);
}

// teethConf - 4 values showing number of teeth, 0 - teeth are not cut
// teethOddity - 4 values, 0 for even teeth, 1 - for odd
module wall(x, y, thickness, teethConf, teethOddity, chamferConfig)
{
	difference()
	{
		union()
		{
			difference()
			{
				cube([x, y, thickness]);

				if(chamferConfig[0] > 0)
					translate([-1, -1, -1])
					cube([chamferConfig[0]+1, chamferConfig[0]+1, thickness+2]);
				if(chamferConfig[1] > 0)
					translate([-1, y - chamferConfig[1] + 1, -1])
					cube([chamferConfig[1]+1, chamferConfig[1]+1, thickness+2]);
				if(chamferConfig[2] > 0)
					translate([x - chamferConfig[2] +1, y - chamferConfig[2] + 1, -1])
					cube([chamferConfig[2]+1, chamferConfig[2]+1, thickness+2]);
				if(chamferConfig[3] > 0)
					translate([x - chamferConfig[3] +1, -1, -1])
					cube([chamferConfig[3]+1, chamferConfig[3]+1, thickness+2]);
			}

			if(chamferConfig[0] > 0)
				translate([chamferConfig[0], chamferConfig[0], 0])
				cylinder(r = chamferConfig[0], h = thickness);
			if(chamferConfig[1] > 0)
				translate([chamferConfig[1], y - chamferConfig[1], 0])
				cylinder(r = chamferConfig[1], h = thickness);
			if(chamferConfig[2] > 0)
				translate([x - chamferConfig[2], y - chamferConfig[2], 0])
				cylinder(r = chamferConfig[2], h = thickness);
			if(chamferConfig[3] > 0)
				translate([x - chamferConfig[3], chamferConfig[3], 0])
				cylinder(r = chamferConfig[3], h = thickness);
		}

		if(teethConf[0] > 0)
			cutter(x, teethConf[0], thickness, teethOddity[0]==0);

		if(teethConf[1] > 0)
			translate([0, y, 0])
			rotate([0, 0, -90])
			cutter(y, teethConf[1], thickness, teethOddity[1]==0);

		if(teethConf[2] > 0)
			translate([x, y, 0])
			rotate([0, 0, -180])
			cutter(x, teethConf[2], thickness, teethOddity[2]==0);

		if(teethConf[3] > 0)
			translate([x, 0, 0])
			rotate([0, 0, -270])
			cutter(y, teethConf[3], thickness, teethOddity[3]==0);
	}
}

// tool for cutting teeth
module cutter(length, count, thickness, odd = true)
{
	for(i = [0:count-1])
	{
		if(odd && i%2 == 0)
			translate([i*length/count - tolerance, -1, -1])
			cube([length/count + tolerance*2, thickness+1, thickness+2]);
		if(!odd && i%2 != 0)
			translate([i*length/count - tolerance, -1, -1])
			cube([length/count + tolerance*2, thickness+1, thickness+2]);
	}
}

```


[User]
Hey, I'm looking to generate some customizable battery tube holders using OpenSCAD, and I need it to be pretty flexible. I want to be able to specify different battery sizes, how many holders are next to each other, and some details about the cap and tube connections. I've got some specific requirements and some ideas based on an existing script I saw that I'd like to use as a starting point for a new design.

Here's what I'm thinking:

**Core Functionality:**

*   **Battery Types:** I want to be able to choose from a range of standard battery types: 18650, A, AA, AAA, AAAA, B, C, D, F, and N. Also, I'd need an option for a "custom" type where I can specify the inner radius and height of the tube.
*   **Number of Holders:** The design should allow for specifying how many battery tubes are placed next to each other.
*   **Export Options:** I need the flexibility to export just the tubes, just the caps, or both.

**Tube Design:**

*   **Wall Thickness:** I should be able to set a consistent wall thickness for all tubes.
*   **Fillets:** I'd like a configurable fillet radius where the tube connects to its base.
*   **Holding Groove:** I'd want a circular groove around the top edge of each tube to help the caps stay in place. I'd need to control:
    *   The radius of this groove.
    *   The height of the center of the groove from the top of the tube.
    *   The depth of the groove.

**Cap Design:**

*   **Overlap:** The cap should overlap the top of the tube. I'd need a way to control how much overlap there is.
*   **Tolerance:**  I need a small tolerance between the tube and cap so they fit together without being too tight, and I want to be able to control this tolerance.
*   **Chamfer:** I would want a small chamfer on the cap opening to make it easier to insert the tube. This also needs to be configurable.
*   **Fillets:** Similar to the tubes, I need to be able to control fillet radius where the cap transitions into its shell.

**Parametric Behavior**

*   All the parameters I mentioned should be configurable using variables at the top of the scad script.
*   Everything needs to be calculated based on these parameters, so that changing one variable automatically updates the whole design.
*   The positions of the tubes should be generated based on the radius and spacing of the tubes so that there is the correct spacing between tubes even when the size is changed.

I think this would be a great project. It should cover all the options in the existing design, but with the proper parameterization I'm looking for. I'd prefer if the design is modular and I'm not reliant on any additional libraries, thanks!

[Assistant]
Battery_Tubes.scad:
```
/* [Base Options] */

$fn = 64;

// Type
type = "18650"; // [custom, 18650, A, AA, AAA, AAAA, B, C, D, F, N]

// Number of tubes
numHolders = 2;

// Do export caps
exportCaps = 1; // [0, 1]

// Do export tubes
exportTubes = 1; // [0, 1]

/* [Custom Size Options] */

// Inner height of tube (Only used with Custom Type)
tubeHoleHeight = 66;

// Inner radius of tube (Only used with Custom Type)
tubeHoleRadius = 10;

/* [Overall] */

// Thickness of all tubes
wallThickness = 1.6;

// Cap and Tube Fillets
capTubeFillets = 2;

/* [Cap Options] */

// Height of cap overlap with tube
capOverlap = 4;

// Tolerance of cap and tube
capTolerance = 0.3;

// Chamfer on the cap opening
capChamfer = 0.4;

/* [Holding Groove] */

// Radius of groove to hold on cap
grooveRadius = 2;

// Height of groove center from top of tube
grooveOffset = 2;

// Depth of groove on the tube
grooveInset = 0.25;

/////// Do not edit below

holeRadius = type == "18650" ? 10 :
             type == "A" ? 9 :
             type == "AA" ? 8 :
             type == "AAA" ? 6 :
             type == "AAAA" ? 5 :
             type == "B" ? 11 :
             type == "C" ? 14 :
             type == "D" ? 18 :
             type == "F" ? 17 :
             type == "N" ? 7 :
             tubeHoleRadius;

 holeHeight = type == "18650" ? 66 :
              type == "A" ? 51 :
              type == "AA" ? 51 :
              type == "AAA" ? 45 :
              type == "AAAA" ? 43 :
              type == "B" ? 61 :
              type == "C" ? 51 :
              type == "D" ? 62 :
              type == "F" ? 92 :
              type == "N" ? 31 :
              tubeHoleHeight;

if (exportTubes == 1) tubes();
if (exportCaps == 1) caps();

function getOffset(n) = holeRadius * n * 2 + wallThickness * n;

module tubes() {
    difference() {
        // Create all the tubes next to each other
        union() {
            for(n = [0:numHolders - 1]) {
                translate([getOffset(n), 0, 0])
                tubeShell();
            }
        }

        // Remove the holes from the center of the tubes
        for(n = [0:numHolders - 1]) {
            translate([getOffset(n), 0, 0])
            tubeInner();
        }
    }
}

module caps() {
    // Move to in front of tubes
    translate([0, -(wallThickness * 2 + holeRadius * 2 + capTolerance + 10), wallThickness + capOverlap])
    // Flip over for optimal 3d printing
    mirror([0, 0, 1])
    difference() {
        // Create all caps
        union() {
            for(n = [0:numHolders - 1]) {
                translate([getOffset(n), 0, wallThickness + capOverlap])
                mirror([0, 0, 1])
                circleFillet(capTubeFillets, holeRadius + wallThickness * 2 + capTolerance)
                linear_extrude(wallThickness + capOverlap)
                circle(holeRadius + wallThickness * 2 + capTolerance);
            }
        }

        // Remove insides of caps
        for(n = [0:numHolders - 1]) {
            translate([getOffset(n), 0, 0])
            capInner();
        }
    }
}

module capInner() {
    // hole for inside of cap
    translate([0, 0, -1])
    linear_extrude(capOverlap + 1)
    circle(holeRadius + wallThickness + capTolerance);

    // groove with tolerance
    translate([0, 0, capOverlap - grooveOffset - capTolerance])
    grooveExpanded();

    // chamfer
    translate([0, 0, capChamfer - 0.0001])
    rotate_extrude(angle = 360)
    translate([holeRadius + wallThickness + capTolerance, 0, 0])
    rotate([0, 0, 270])
    polygon([
            [0, 0],
            [capChamfer, capChamfer],
            [capChamfer, 0],
            [0, 0]
        ]);
}

module tubeShell() {
    circleFillet(capTubeFillets, holeRadius + wallThickness)
    linear_extrude(holeHeight + wallThickness)
    circle(holeRadius + wallThickness);

    translate([0, 0, holeHeight + wallThickness - grooveOffset])
    groove();
}

module tubeInner() {
    translate([0, 0, wallThickness])
    linear_extrude(holeHeight + 1)
    circle(holeRadius);
}

module groove() {
    difference() {
        rotate_extrude(angle = 360)
        translate([holeRadius + wallThickness + grooveInset - grooveRadius, 0])
        circle(r = grooveRadius);

        translate([0, 0, -grooveRadius])
        linear_extrude(grooveRadius * 2)
        circle(holeRadius + wallThickness - 0.0001);
    }
}

module grooveExpanded() {
    difference() {
        rotate_extrude(angle = 360)
        translate([holeRadius + capTolerance + wallThickness + grooveInset - grooveRadius, 0])
        circle(r = grooveRadius);

        translate([0, 0, -grooveRadius])
        linear_extrude(grooveRadius * 2)
        circle(holeRadius + wallThickness + capTolerance);
    }
}

module circleFillet(filletRadius, circleRadius) {
    difference() {
        children(0);
        circleFilletOutside(filletRadius, circleRadius);
    }
}

module circleFilletOutside(filletRadius, circleRadius) {
    difference() {
        translate([0, 0, -1])
        rotate_extrude(angle = 360)
        translate([circleRadius - filletRadius, 0, 0])
        square(filletRadius + 1);

        translate([0, 0, filletRadius])
        rotate_extrude(angle = 360)
        translate([circleRadius - filletRadius, 0])
        circle(r = filletRadius);
    }
}
```


[User]
Hey, I'm looking to create a spent primer spacer for my Lee Precision Breech Lock Reloader Press, and I'd like to use OpenSCAD to make it parametric. I have a basic idea based on some existing designs but would like to create it from scratch using code.

Here's what I'm aiming for:

The spacer will have a main body that's roughly rectangular with a channel going through its width for the spent primers to pass through. I also want to include two "clips" that allow the spacer to attach to the press frame on either side and, that's really it. I was hoping to do that with a couple of "C" shaped clips.

Here are the specific dimensions and features I need to make parametric:

*   **Main Body:**
    *   `wall_length`:  The overall length of the main body. Let's start with a default of 38mm.
    *   `wall_width`: The depth of the main body, initially 6.5mm.
    *   `wall_thickness`: The thickness of the main body, defaults to 3.0mm.
    *  `x_offset`: A horizontal offset for the clips from the center of the main body, with a default of 0.975mm.
    *  `y_offset`: A vertical offset for the clips from the center of the main body, with a default of 12mm.

*   **Channel:**
    *   The channel through the main body needs to accommodate spent primers; I think I'd like to represent this by cutting a large diameter hole through the main body to remove material. It needs to be large enough to not interfere with the primers. I suppose this could also be represented by a combination of two cylinders (one top and bottom to leave the desired channel). The diameter needs to be parametric as well.

*   **Clips:**
    *   The clips will be "C" shaped, designed to hook onto the frame of the press. I was thinking they would be a couple of cylinders combined using the hull() function to make a "c" shape.
    *  These will have a `groove_radius` and `groove_width` to control the dimensions of the clip.  I'm thinking a default of 1.5 mm radius, and 11mm width for that clip part.

Also, I'd like to make the number of facets used to create the rounded edges parametric as well and control that with the `$fn` variable; a default value of 100 should be good.

I'm not using any external libraries and would like to have the entire design in one OpenSCAD file. I'm thinking this should be fairly simple to implement, but it needs to be parametric so I can adjust it easily.

Can you help me with the OpenSCAD code for this?

[Assistant]
primer_spacer.scad:
```
// This is a spent primer spacer for the Lee Precision Breech Lock Reloader Press Updated.
// My design is a remix of fralic76's design found here:
// https://www.thingiverse.com/thing:2336753/
//
// I improved upon the design by adding clips to attach
// the spacer to the press frame.
//
// Warning -- some sanding and fitting may be required.
//
// This is licensed under the creative commons+attribution license
//
// To fulfill the attribution requirement, please link to:
// https://www.thingiverse.com/thing:3022868

/* [Main] */

// Define number of facets (larger numbers provide better smoothing)
$fn=100;

// in mm
wall_length=38.0;

// in mm
wall_width=6.5;

// in mm
wall_thickness=3.0;

// in mm
x_offset=0.975;

// in mm
y_offset=12.0;

module groove_thing(groove_radius,groove_width)
{
    hull()
    {
        translate([1,groove_width,-(wall_width-wall_thickness)+1.3]) rotate([0,90,0]) cylinder(r=groove_radius,h=wall_length+2,center=true);
        translate([1,-groove_width,-(wall_width-wall_thickness)+1.3]) rotate([0,90,0]) cylinder(r=groove_radius,h=wall_length+2,center=true);
    }
}

module slot(slot_radius,slot_height)
{
    hull()
    {
        translate([10.1,0,0]) rotate([0,0,0]) cylinder(r=slot_radius,h=slot_height,center=true);
        translate([-7.1,0,0]) rotate([0,0,0]) cylinder(r=5,h=2*wall_thickness,center=true);
    }
}

difference()
{
    translate([0,0,3.0]) rotate([0,0,0]) cube([wall_length+2,2*y_offset+2*wall_thickness,2.6*wall_thickness],center=true);
    slot(5,2*wall_thickness);
    translate([0,0,13.85]) rotate([0,90,0]) cylinder(r=12.25,h=45.0,center=true);
    translate([0,0,-12.85]) rotate([0,90,0]) cylinder(r=12.25,h=45.0,center=true);
    translate([-21.0,0,-1.6]) rotate([0,45,0]) cube([wall_thickness+2,3*y_offset,wall_thickness+2],center=true);
}

difference()
{
    union()
    {
        %translate([0,5,-1.2]) import("./LEE_PRESS_SPACER_05.stl");

        translate([-wall_length/2+x_offset,(y_offset),-wall_width]) cube([wall_length,3,wall_width],center=false);
        translate([-wall_length/2+x_offset,-(y_offset+wall_thickness),-wall_width]) cube([wall_length,3,wall_width],center=false);

        translate([x_offset,y_offset,-(wall_width-wall_thickness/2)]) rotate([90,0,90]) cylinder(r=wall_thickness/2,h=wall_length,center=true);
        translate([x_offset,-y_offset,-(wall_width-wall_thickness/2)]) rotate([90,0,90]) cylinder(r=wall_thickness/2,h=wall_length,center=true);
    }
    #groove_thing(1.5,11.0);
}
```


[User]
Hey, I'm looking to get an OpenSCAD file (or a few files if needed) for a T-slot nut, similar to the one I've seen on Thingiverse, but I want to make it fully parametric so I can easily adjust it for different screw and T-slot sizes.

Specifically, I need it to have these features:

*   **T-Slot Profile:** The nut should have the typical "T" shape with an upper guide section, a middle clamping section, and a lower profile that slots into the T-slot itself. I want to be able to easily adjust the width and height of these sections.
*   **Screw Hole:** The nut needs a central hole for a screw, and the diameter should be adjustable based on the screw size (like M3, M4, M5, M6, etc.).
*   **Nut Recess:** There should also be a hexagonal recess on the underside for a standard hex nut. This recess should also be parametric, so it matches the chosen screw size. The depth of this recess needs to be parametric as well.
*   **Overall Length:** I need to be able to control the overall length of the nut.
*   **Customizable Section Heights** I'd like to be able to set the height of the top guide, the clamping section, and the lower profile independently.

I want to be able to define all of these dimensions through parameters in the OpenSCAD file, rather than having to manually change the code each time. It would be great if it used a module for the overall nut body as well as a separate module for the screw hole and nut recess, so it's easy to combine them.  I also think it would be useful to have a dedicated variable for the chamfer depth and angle to be applied to any edges. It might also be useful to have variables for each of the hexagonal nut dimensions.

For the T-slot section I don't want to explicitly describe the bottom profile with separate cubes, like the example above; I want a single hull to combine the bottom two parts to ensure that they are properly connected.

I haven't used any specific libraries in mind but if you have any recommendations, that would be great.  I'm hoping for something relatively straightforward and easy to use for someone without a ton of OpenSCAD experience, but I am comfortable making basic modifications to the code.

Thanks for your help!

[Assistant]
T-Nutenstein_hoch_Mx.scad:
```
/*CNC3018 Nutenschuh
20180727 P. de Graaff
*/
//M5 - 5, M6 - 6
Mx=5;
difference(){
    corpus();                                                                   //Nutenschuh
    if (Mx==5){
        translate([0,0,-20])cylinder(d=4.9,h=50,$fn=50);                        //Bohrung fuer M5-Schraube
        translate([0,0,-5.3])rotate([0,0,30])cylinder(d=9.2,h=3.4,$fn=6);       //Sechskant Loch fuer M5-Mutter

    }
    else{
        translate([0,0,-20])cylinder(d=5.6,h=50,$fn=50);                       //Bohrung fuer M&-Schraube
        translate([0,0,-5.6])rotate([0,0,30])cylinder(d=11.8,h=5,$fn=6);       //Sechskant Loch fuer M6-Mutter
    }

}
//T-Nutenschuh 16.6mm lang, ohne Bohrung
module corpus(){
    //obere Fuehrung
    translate([0,0,(4-1.7)/2])cube([8,16.6,4],center=true);
    //Klemmflaeche
    translate([0,0,-1.7])cube([16,16.6,2],center=true);
    //Profil unten
    translate([0,0,-2.7])hull(){
        cube([16,16.6,0.01],center=true);
        translate([0,0,-2.5])cube([11,16.6,0.01],center=true);
    }
}
```


[User]
I need an OpenSCAD design for a drill guide with an integrated dust collector. I'd like it to be parametric so I can easily adjust it for different drill sizes and mounting situations.

The basic design should include:

1.  **A guide tube:** This is the main cylindrical part that the drill bit passes through. It needs to have a specified diameter (for the drill bit plus some tolerance) and height.
2.  **A base plate:** A flat plate that the guide tube is attached to. The base plate should have adjustable width and thickness, and should probably be centered on the guide tube. I want to be able to add a few nubs, like small cubes, on the bottom of the baseplate to help it stay put, too.
3.  **A dust collector:** This should be a box-like structure attached to the side of the base plate to collect dust created by drilling. The dust collector needs adjustable width, depth, and height, and wall thickness. I'll want a connecting channel between the drill guide and the dust collector, and probably a little bean-like support structure on the collector.

The whole thing should be designed to be printed in one piece.

Key parameters I need to control:

*   `drill_diameter` (mm): Diameter of the drill bit (with tolerance).
*   `guide_height` (mm): Height of the guide tube.
*   `guide_diameter` (mm): Diameter of the guide tube's outer wall.
*   `plate_thick` (mm): Thickness of the base plate.
*   `plate_width` (mm): Width of the base plate.
*  `collector_width` (mm): Width of the dust collector box.
*  `collector_depth` (mm): Depth of the dust collector box.
*  `collector_height` (mm): Height of the dust collector box.
*  `collector_thick` (mm): Thickness of the walls of the dust collector.

For the nubs on the base plate, they should be a simple cube, and I'd like three, centered on the base plate's center and sides.

The file should define a module for the base plate, a module for the nubs, and a module for the dust collector. It also needs to define the main assembly, a difference between all the pieces, and the drill hole.

It's important that the design makes it easy to insert the drill bit. I think that a small chamfer or edge on the top of the guide tube would help. I think that could be done with a sphere subtract. And there needs to be a channel to allow the dust to go from the drilling area into the collector.

I don't have any preference for which libraries are used but I'd expect some use of core functions like `cube`, `cylinder`, `difference`, `translate`, and `rotate`.

[Assistant]
drillguide.scad:
```
// Drillguide and sawduct collector for drilling on wall
// By Leo Liang, 2018-7-28
//
// Remix on https://www.thingiverse.com/thing:3013962, by Coat, 08-jul-2018
// Licensed under the Creative Commons - Attribution license.

//Primary parameters
//diameter drill (mm), add a little tolerance
drill_diameter = 8.2;
//height of the  guidetube (mm)
guide_height = 35;
//width of the guidetube (mm)
guide_diameter = 16;
//thickness of the baseplate (mm)
plate_thick = 3;
//width of the baseplate (mm)
plate_width = 80;
// width of the sawdust collector (mm)
collector_width = 80;
//depth of the sawdust collector (mm)
collector_depth = 30;
//height of the sawdust collector (mm)
collector_height = 35;
// thickness of the wall of the collector (mm)
collector_thick = 1;

module plate(w,t)
{
  translate([0,0,0.5 * plate_thick]) difference()
  {
    cube([w, w, t], center=true);
    cube([w/1.25, guidlinew, guide_height],center = true);
    cube([guidlinew, w/1.25, guide_height],center = true);

    translate([0.5*plate_width,0,-plate_thick/2])
      nodge();
    translate([0,0.5*plate_width,-plate_thick/2])
      nodge();
    translate([-0.5*plate_width,0,-plate_thick/2])
      nodge();
  }
}

module nodge()
{
  translate([0,0,plate_thick/2]) rotate([0,0,45])
    cube([3,3,plate_thick+0.01], center=true);
}

module collector() {
  offset = min(collector_height, (plate_width-guide_diameter)/2);
  depth = collector_depth + offset;
  difference() {
    translate([0, offset/2, collector_height/2]) cube([collector_width, depth, collector_height], center=true);
    translate([0, offset/2+collector_thick, collector_height/2])
      cube([collector_width-collector_thick*2, depth, collector_height-collector_thick*2], center=true);
  	multmatrix(m=[[1, 0, 0, -collector_width/2-1],
  								[0, 1, -offset/collector_height, collector_depth/2+offset],
	  							[0, 0, 1, 0],
		  						[0, 0, 0, 1]])

      cube([collector_width+2, offset+1, collector_height+1]);
  }
  translate([0,offset/2-depth/2, 0]) nodge();
  // add a bean to strengthen thin wall
  translate([0, collector_depth/2, collector_height-1.5]) cube([collector_width, 2, 3], center=true);
}

//****************************************
//Main
//secondary parameters
$fn = 32;
guidlinew = min(2,drill_diameter/2);
dtop = (guide_diameter + drill_diameter)/2;
channel_height = min(guide_height/2, 10+plate_thick);

//The thing
difference()
{
  union()
  {
    color("red") cylinder(d = guide_diameter, h = guide_height);
    plate(plate_width,plate_thick);
    translate([0, -collector_depth/2-plate_width/2, 0]) collector();
  }

  //drillhole
  cylinder(d = drill_diameter , h = guide_height*3, center = true);

  //edge in top drillguide to make it easier to insert drill
  translate([0,0,guide_height + dtop/5])
    sphere(d= dtop);

  //sawdust-channel
  translate([-drill_diameter/4,-1-guide_diameter/2,-0.1])
    cube([drill_diameter/2, guide_diameter/2, channel_height]);
}

```


[User]
I'd like to design a pencil extender with a built-in dice, and I'm looking for a parametric OpenSCAD design that can handle both hexagonal and round pencils.

Here's what I'm thinking:

*   **Shape:** The extender should be able to accommodate either a hexagonal or round pencil. This should be a user-selectable parameter.
*   **Extender Part:** There should be a main extender part that grips the pencil. This should also be optional - the user should be able to turn it on/off.
*   **Dice:** I want to add a dice feature to the extender. This should also be optional. When the dice feature is enabled, it will be represented by an array of holes on the extender. The dice layout should be a standard dice layout (1-6).
*   **Filler:** I also want to create an optional filler piece that can fit inside the extender part. This could be used if the user wants a two-tone print or just needs a cap.
*   **Cap Feature:** The filler piece, if enabled, should also have an optional cap feature. The cap feature would be a small hole in the center of the filler to help protect the pencil tip if the user wants.
*   **Dimensions:**
    *   There should be a parameter to define the inner diameter of the pencil hole.
    *   There should be a parameter to define the total height of the extender.
    *   There should be a parameter to define the depth of the pencil hole in the filler, if the filler and cap are enabled.
    *   There should be a parameter to define the shell thickness. This will be the material surrounding the inner hole and should ideally be a multiple of the user's nozzle diameter (so they can change it).
*   **General:** The design should be parametric, so it can easily be modified without having to do a bunch of math, or having to manually type each shape individually.

Essentially, I want a very customizable pencil extender that can double as a dice, and a filler/cap. I do not want to have to define individual vertices or angles in the code.

Please provide me with all of the SCAD files required to do this, no external libraries needed. I would like it to be easy to modify and easy to understand.

[Assistant]
dice_pencil_extender_cap.scad:
```
// dice pencil extender cap
// version 0.0.1
// by pixelhaufen
// is licensed under CC BY-SA 3.0 -> https://creativecommons.org/licenses/by-sa/3.0/

//------------------------------------------------------------------
// User Inputs

/*[dice and extender]*/

// shape of the pencil
shape = "hexagon"; // [hexagon,round]

// generate the extender part
extender = "yes"; // [yes,no]
// requires extender
dice = "yes"; // [yes,no]
// pencil diameter
inner_diameter = 7; // [3:0.1:10]
// height of the extender
height = 70; // [22:1:80]
// use a multiple of your nozzle
shell = 1.2; // [0.1:0.05:5]

/*[filler]*/
// generate a filler
filler = "yes"; // [yes,no]
// protect the point requires filler
cap = "yes"; // [yes,no]
// depth of the hole for the pencil
depth = 22; // [0:1:79]

/*[Hidden]*/
$fn = 150; // can't be modified on thingiverse
incircle = inner_diameter/2;
spacing = 0.2;

//------------------------------------------------------------------
// Main

if(filler=="yes")
{
    if(cap=="yes")
    {
        difference()
        {
            if(shape=="round")
            {
                cylinder(r1=incircle, r2=incircle, h=height-depth-1, center=false);
            }
            if(shape=="hexagon")
            {
                hexagon(incircle,height-depth-1);
            }

            translate([0,0,height-depth-8])
            {
                cylinder(r1=0.5, r2=1.5, h=8, center=false);
            }
        }
    }
    else
    {
        hexagon(incircle,height-depth-1);
    }

    if(extender=="yes")
    {
        translate([0,(incircle*2+shell+spacing+2),0])
        {
            extender();
        }
    }
}
else
{
    if(extender=="yes")
    {
        extender();
    }
}

//------------------------------------------------------------------
// Modules

module extender()
{
    difference()
    {
        hexagon(incircle+shell+spacing,height);

        union()
        {
            translate([0,0,1])
            {
                if(shape=="round")
                {
                    cylinder(r1=incircle+spacing, r2=incircle+spacing, h=height, center=false);
                }
                if(shape=="hexagon")
                {
                    hexagon(incircle+spacing,height);
                }
            }

            if(dice=="yes")
            {
                //     6,1,4,5,2,3,  h
                holes([1,1,1,1,1,1], 1);
                holes([1,0,1,1,0,0], 4);
                holes([1,0,0,1,0,0], 7);

                holes([1,0,0,0,0,0], 13);
                holes([1,0,1,1,0,1], 16);
                holes([1,0,1,1,1,1], 19);
            }
        }
    }
}

module holes(hx, height)
{
    for(x = [0:len(hx)])
    {
        pos = 360/len(hx) * x;

        if(hx[x]==1)
        {
            rotate([0, 0, pos])
            {
                translate([-1,0,height])
                {
                    cube([2, incircle+shell+spacing, 2], center=false);
                }
            }
        }
    }
}

module hexagon(incircle, height)
{
    r=incircle/(sqrt(3)/2);
    linear_extrude(height = height, center = false, convexity = 10, twist = 0)
    {
        angles=[ for (i = [0:6-1]) i*(360/6) ];
        coords=[ for (th=angles) [r*cos(th), r*sin(th)] ];
        polygon(coords);
    }
 }

```


[User]
Hey, I'm looking to create a 3D model of a Scutoid, and I'd like it to be customizable through parameters. I saw this design on Thingiverse, and I'm hoping you can help me recreate it, but with my own design parameters. I'd like two Scutoids that are designed to pack together.

The core idea is that a Scutoid has a hexagonal face on one end and a pentagonal face on the other, with an extra vertex in the middle causing the sides to curve. I want to be able to adjust the radius of the base, the overall height, the amount the shape twists, and how much the two ends are pushed apart. The Scutoids should be able to be flared, and I want to be able to specify how high the extra vertex should be, as a fraction of the total height. I also want to be able to control the resolution of the model with a "steps" parameter.

Specifically, I need these parameters:
*   `radius`: Radius of the base of the Scutoid (both pentagon and hexagon).
*   `height`: Overall height of the Scutoid.
*   `angle`: Amount to twist the Scutoid.
*   `push`: Translation of the base away from the top.
*   `steps`: Resolution of the model.
*  `flare`: How much to scale the top versus the bottom.
*  `vertical`: Height of the extra vertex as a fraction of total height (between 0 and 1).

I'd like the model to create two Scutoids that can pack together and be colored differently, I think this would make it easier to visualise what's happening, and I would want a test render that shows the two halves in a combined orientation. I'm new to OpenSCAD so a single file is probably the easiest route.

For the geometry, I think that the hexagon and pentagon faces should be regular, but the model needs to be flexible enough to change those if I ever want to in the future. The sides need to be curved and smooth. I think the model should use the polyloft module for the curved sides, as in the reference implementation, rather than straight edges. I'd also like to include a go() function to calculate the position of a point as a fraction between two given points. I think it would make sense for the code to define some initial points, based on the inputs, and then work from that.

I don't need any fancy libraries for this, just the basic functionality of OpenSCAD. I'm looking for a file named `scutoid_packable.scad`. Could you please help me with this? Thanks!

[Assistant]
scutoid_packable.scad:
```
// mathgrrl scutoid made by polyhedral loft

/////////////////////////////////////////////////////////////////////////////
// PARAMETERS

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

steps = 1*100;

// Radius of Scutoid base (in mm)
radius = 20;
r = radius;
s = sin(36)/sin(30);    // scale factor for equal hex and pent side lengths
p = r*cos(36);          // distance from center to midside of pentagon
x = s*r*cos(30);        // distance from center to midside of hexagon

// Height of Scutoid (in mm)
height = 60;
h = height;

// Angle (twists the entire form)
angle = -15;

// Push (translates the base away from the top)
push = -5;
translation = 1*[push,0,0];

// Steps (higher for finer resolution, lower for fewer polygons)
steps = 1*100;

// Flare (the two pieces will be different unless this is 1)
flare = 1;

// Height of the extra vertex (as a fraction of total height, between 0 and 1; the two pieces will be different unless this is .5)
vertical = .5;
v = vertical;

/////////////////////////////////////////////////////////////////////////////
// PERIMETER DEFINITIONS

// top left hexagon
H = [for(i=[0:5])
        [[flare,0,0],[0,flare,0],[0,0,1]]
        * [s*r*cos(i*360/6+30)-x,s*r*sin(i*360/6+30),h] ];

// bottom left pentagon
P = [ for(i=[0:4])
        [[cos(angle/2),-sin(angle/2),0],[sin(angle/2),cos(angle/2),0],[0,0,1]]*translation
            + [[cos(angle),-sin(angle),0],[sin(angle),cos(angle),0],[0,0,1]]
              * [r*cos(i*360/5+36)-p,r*sin(i*360/5+36),0] ];

// top right pentagon
Q = [ for(i=[0:4])
         [[flare,0,0],[0,flare,0],[0,0,1]]
         * [r*cos(i*360/5+144)+p,r*sin(i*360/5+144),h] ];

// bottom right hexagon
K = [for(i=[0:5])
        [[cos(angle/2),-sin(angle/2),0],[sin(angle/2),cos(angle/2),0],[0,0,1]]*translation
            + [[cos(angle),-sin(angle),0],[sin(angle),cos(angle),0],[0,0,1]]
                * [s*r*cos(i*360/6+150)+x,s*r*sin(i*360/6+150),0] ];

// extra vertex determined by double scutoid
V = go( go(K[2],H[4],v), go(P[4],Q[1],v), .5);

// left middle layer (5 sides)
ML = 1*[ go(P[0],H[0],v), go(P[1],H[1],v), go(P[2],H[2],v), go(P[3],H[3],v), V ];
// left middle layer with repeated vertex (6 sides)
MLstar = 1*[ go(P[0],H[0],v), go(P[1],H[1],v), go(P[2],H[2],v), go(P[3],H[3],v), V, V+[0,0,.001] ];

// right middle layer (5 sides)
MR = 1*[ go(K[0],Q[0],v), V, go(K[3],Q[2],v), go(K[4],Q[3],v), go(K[5],Q[4],v) ];
// right middle layer with repeated vertex (6 sides)
MRstar = 1*[ go(K[0],Q[0],v), V, V+[0,0,.001], go(K[3],Q[2],v), go(K[4],Q[3],v), go(K[5],Q[4],v) ];

/////////////////////////////////////////////////////////////////////////////
// DOUBLE PERIMETER DEFINITIONS

// upper perimeter
DA = 1*[ Q[0], H[1], H[2], H[3], H[4], H[5], Q[2], Q[3], Q[4] ];

// lower perimeter (same number of points!)
DB = 1*[ P[0], P[1], P[2], P[3], P[4], K[2], K[3], K[4], K[5] ];

// middle layer
DM = [ go(P[0],Q[0],v), go(P[1],H[1],v), go(P[2],H[2],v), go(P[3],H[3],v), V, V+[0,0,.001],
      go(K[3],Q[2],v), go(K[4],Q[3],v), go(K[5],Q[4],v) ];

/////////////////////////////////////////////////////////////////////////////
// RENDERS

scutoid();
translate([10,0,0]) scutoidmatch();

/////////////////////////////////////////////////////////////////////////////
// SCUTOIDS

// single scutoid
module scutoid(){
    color("green") polyloft(P,ML);
    color("green") polyloft(MLstar,H);
}

// single matching scutoid
module scutoidmatch(){
    color("orange") polyloft(K,MRstar);
    color("orange") polyloft(MR,Q);
}

// double scutoid
module doublescutoid(){
    polyloft(DB,DM);
    polyloft(DM,DA);
}

//test to see if left and right are the same
module scutoidtest(){
    color("yellow"){
        polyloft(P,ML);
        polyloft(MLstar,H);
    }
    color("blue")
    translate([0,0,h]+[[cos(angle/2),-sin(angle/2),0],[sin(angle/2),cos(angle/2),0],[0,0,1]]*translation)
    rotate(180,[1,0,0])
    rotate(180-angle,[0,0,1]){
        polyloft(K,MRstar);
        polyloft(MR,Q);
    }
}

/////////////////////////////////////////////////////////////////////////////
// POLYLOFT

module polyloft(A,B){

    /// DEFINE POINTS //////////////////////////////////////////////

    // points at kth level
    function points(k) = [ for(i=[0:len(A)-1]) go(A[i],B[i],k/steps) ];

    // recursively list all points up to level n
    function allpoints(n) = (n==0 ? points(0) : concat(allpoints(n-1),points(n)));

    // all points
    // listed ccz starting with bottom slice and going up
    allpoints = allpoints(steps+1);

    /// DEFINE FACES ///////////////////////////////////////////////

    // quads at kth level
    function quads(k) = [
        for(i=[0:len(A)-1])
            [ i+(k-1)*len(A),(i+1)%len(A)+(k-1)*len(A),
              (i+1)%len(A)+len(A)+(k-1)*len(A),
              i+len(A)+(k-1)*len(A) ]
    ];

    // recursively list all quads up to level n
    function allquads(n) = (n==0 ? [] : concat(allquads(n-1),quads(n)));

    // all quads
    // listed ccz starting with bottom slice and going up
    allquads = allquads(steps);

    // top and bottom faces
    top = [ for(i=[0:len(B)-1]) i+len(A)+(len(A))*(steps-1) ];
    bottom = [ for(i=[0:len(A)-1]) (len(A)-1)-i ];

    // all faces
    allfaces = concat([bottom],allquads,[top]);

    /// DEFINE POLYHEDRON //////////////////////////////////////////

    polyhedron(
        points = allpoints,
        faces = allfaces
    );

}

/////////////////////////////////////////////////////////////////////////////
// INTERPOLATION

// point that is t in [0,1] of the way between points A and B
function go(A,B,t) =
    (1-t)*A+t*B;
```