[User]
I'd like to create a customizable, weather-resistant container with a screw-on lid, designed to minimize water getting in. It should have two sets of threads for a more secure closure, and I'd like to be able to adjust the internal dimensions, the wall thicknesses, and the overall height. I want to have the option for knurled texturing on the outside of the container and the lid for a better grip.

Here are the key parameters I'd like to control:

*   **Core Dimensions:**
    *   `core_height`: The height of the internal storage space.
    *   `core_diameter`: The diameter of the internal storage space.
*   **Thread:**
    *   `thread_height`: Height of each thread helix.
    *  `thread_width`: Width of the threads.
    *   `thread_angle`: Angle of the thread helix.
    *    `thread_reinforcement`: Optional additional reinforcement on threads.
*   **Walls and Tolerances:**
    *   `base_height`: The thickness of the bottom of the container.
    *  `horizontal_tolerance`: Allowance for spacing between the male and female threads.
   *   `itr`: Inner thread reinforcement.
*   **Lid:**
    *   `lid_height`: The height of the lid.
*   **Knurling:**
    *   `body_texture`: Option for the container body to be smooth cylinder or knurled.
    *   `lid_texture`: Option for the lid to be smooth cylinder or knurled.
   *   `knurl_depth`: Depth of the knurling.

I need the design to include a module for the container and another for the lid. I want to be able to call a combined module that puts them in the correct positions for printing as a single object as well.

I'd like the design to use the "Poor Man's OpenSCAD Screw Library" and the "Knurled Finish Library" by aubenc - I believe these are available on Thingiverse.

Lastly, I'd like to have a cross-section option to see the inside of the assembled container, but this should be a simple boolean toggle and not something that remains part of the final printed object.

Could you generate the OpenSCAD files for this?

[Assistant]
tripleWallContainer-customizer.scad:
```
/*
 * tripleWallContainer.scad    by meshconnoisseur
 *
 * Last update 2019-03-15 using OpenSCAD 2015.03-2
 *
 * Creates a screw-top container with two levels of threads.
 *
 * Uses Poor Man's OpenSCAD Screw Library and Knurled Finish Library by aubenc:
 * http://www.thingiverse.com/thing:8796
 * http://www.thingiverse.com/thing:31122
 *
 * CC Public Domain
 */

/* [Hidden] */
PI = 3.14159265;

// resolution settings, smaller is finer
$fa = 6;          // minimum angular circle detail (def. 6)
screw_res = PI/2; // smaller is finer but slower (def. PI/2)

/* [Sizing] */
// internal storage region height
core_height = 35; // [10:100]
// internal storage region diameter
core_diameter = 25; // [10:100]
screw_height = core_height; // height of screw. shouldn't be more than core_height.

// horizontal tolerance of diameter, mm (usually about double line width)
horizontal_tolerance = 0.80; // [0.18:0.02:1.62]

/* [Top and Bottom] */
// distance between core and outside
base_height = 2; // [0.8:0.1:5.0]
body_texture = "knurled";// [cylinder, knurled]

lid_height = 8; // [1:15]
lid_texture = "knurled"; // [cylinder, knurled]

knurl_depth = 1.5; // [0.5:0.1:3.0]

/* [Threads] */
thread_reinforcement = 0; // [0:0.1:5]
thread_width = 2.5+thread_reinforcement;
itr = 3*1;           // inner thread reinforcement thickness
// height of thread pattern
thread_height = 4; // [3:0.5:6]
// angle of thread pattern (higher is more vertical)
thread_angle = 55; // [35:5:75]

/* [Extra] */
cross_section = false; // [true, false]

if(cross_section){
    difference(){
        doubleWallBoth();
        translate([-100,0,-20])
        cube([200,200,200]);
    }
}
else{
    doubleWallBoth();
}

//      Convenience function for printing together

module doubleWallBoth(){
    displace = core_diameter/2+thread_width*2+horizontal_tolerance*1+knurl_depth+1+itr;
    translate([displace,0,base_height])
    doubleWallContainer();
    translate([-displace,0,core_height+lid_height])
    rotate([180,0,0])
    doubleWallLid();
}

//       Container itself

module doubleWallContainer(){
    difference(){
        union(){
            difference(){
                body();
                outerScrew();
            }
            innerScrew();
        }
        core();
    }
}

module core(){
    translate([0,0,core_height/2])
    cylinder(d=core_diameter, h=core_height, center=true);
}

module body(){
    if(body_texture=="cylinder"){
        union(){
            translate([0,0,core_height/2])
            cylinder(d=core_diameter+thread_width*4+horizontal_tolerance*2+itr,
                h=core_height, center=true);

            translate([0,0,-base_height/2])
            cylinder(d=core_diameter+thread_width*4+horizontal_tolerance*2+itr,
                h=base_height, center=true);
        }
    }
    if(body_texture=="knurled"){
        translate([0,0,-base_height])
        knurl(k_cyl_hg=core_height+base_height,
            k_cyl_od=core_diameter+thread_width*4+horizontal_tolerance*2+knurl_depth/2+itr,
            e_smooth=0.5,s_smooth=50,knurl_dp=knurl_depth);

    }

}

module innerScrew(){
    translate([0,0,core_height-screw_height])
    screw_thread(core_diameter+thread_width+itr,thread_height,thread_angle,screw_height,screw_res,0);
}

module outerScrew(){
    translate([0,0,core_height-screw_height])
    screw_thread(core_diameter+thread_width*3+horizontal_tolerance*2+itr,thread_height,thread_angle,screw_height,screw_res,0);

}

//        Lid for container

module doubleWallLid(){
    union(){
        lidTop();
        difference(){
            lidOuter();
            lidInner();
        }
    }
}

module lidTop(){
    if(lid_texture=="cylinder"){
        translate([0,0,core_height+lid_height/2])
        cylinder(d=core_diameter+thread_width*4+horizontal_tolerance*2+itr,
            h=lid_height, center=true);
    }
    if(lid_texture=="knurled"){
        translate([0,0,core_height])
        knurl(k_cyl_hg=lid_height,
            k_cyl_od=core_diameter+thread_width*4+horizontal_tolerance*2+knurl_depth/2+itr,
            e_smooth=0.5,s_smooth=50,knurl_dp=knurl_depth);
    }
}

module lidOuter(){
    translate([0,0,core_height-screw_height])
    screw_thread(core_diameter+thread_width*3+horizontal_tolerance+itr,thread_height,thread_angle,screw_height,screw_res,0);
}

module lidInner(){
    translate([0,0,core_height-screw_height])
    screw_thread(core_diameter+thread_width+horizontal_tolerance+itr,thread_height,thread_angle,screw_height,screw_res,0);
}

/*
 * knurledFinishLib_v2.scad
 *
 * Written by aubenc @ Thingiverse
 *
 * This script is licensed under the Public Domain license.
 *
 * http://www.thingiverse.com/thing:31122
 *
 * Derived from knurledFinishLib.scad (also Public Domain license) available at
 *
 * http://www.thingiverse.com/thing:9095
 *
 * Usage:
 *
 *	 Drop this script somewhere where OpenSCAD can find it (your current project's
 *	 working directory/folder or your OpenSCAD libraries directory/folder).
 *
 *	 Add the line:
 *
 *		use <knurledFinishLib_v2.scad>
 *
 *	 in your OpenSCAD script and call either...
 *
 *    knurled_cyl( Knurled cylinder height,
 *                 Knurled cylinder outer diameter,
 *                 Knurl polyhedron width,
 *                 Knurl polyhedron height,
 *                 Knurl polyhedron depth,
 *                 Cylinder ends smoothed height,
 *                 Knurled surface smoothing amount );
 *
 *  ...or...
 *
 *    knurl();
 *
 *	If you use knurled_cyl() module, you need to specify the values for all and
 *
 *  Call the module ' help(); ' for a little bit more of detail
 *  and/or take a look to the PDF available at http://www.thingiverse.com/thing:9095
 *  for a in depth descrition of the knurl properties.
 */

module knurl(	k_cyl_hg	= 12,
					k_cyl_od	= 25,
					knurl_wd =  3,
					knurl_hg =  4,
					knurl_dp =  1.5,
					e_smooth =  2,
					s_smooth =  0)
{
    knurled_cyl(k_cyl_hg, k_cyl_od,
                knurl_wd, knurl_hg, knurl_dp,
                e_smooth, s_smooth);
}

module knurled_cyl(chg, cod, cwd, csh, cdp, fsh, smt)
{
    cord=(cod+cdp+cdp*smt/100)/2;
    cird=cord-cdp;
    cfn=round(2*cird*PI/cwd);
    clf=360/cfn;
    crn=ceil(chg/csh);

    echo("knurled cylinder max diameter: ", 2*cord);
    echo("knurled cylinder min diameter: ", 2*cird);

	 if( fsh < 0 )
    {
        union()
        {
            shape(fsh, cird+cdp*smt/100, cord, cfn*4, chg);

            translate([0,0,-(crn*csh-chg)/2])
              knurled_finish(cord, cird, clf, csh, cfn, crn);
        }
    }
    else if ( fsh == 0 )
    {
        intersection()
        {
            cylinder(h=chg, r=cord-cdp*smt/100, $fn=2*cfn, center=false);

            translate([0,0,-(crn*csh-chg)/2])
              knurled_finish(cord, cird, clf, csh, cfn, crn);
        }
    }
    else
    {
        intersection()
        {
            shape(fsh, cird, cord-cdp*smt/100, cfn*4, chg);

            translate([0,0,-(crn*csh-chg)/2])
              knurled_finish(cord, cird, clf, csh, cfn, crn);
        }
    }
}

module shape(hsh, ird, ord, fn4, hg)
{
	x0= 0;	x1 = hsh > 0 ? ird : ord;		x2 = hsh > 0 ? ord : ird;
	y0=-0.1;	y1=0;	y2=abs(hsh);	y3=hg-abs(hsh);	y4=hg;	y5=hg+0.1;

	if ( hsh >= 0 )
	{
		rotate_extrude(convexity=10, $fn=fn4)
		polygon(points=[	[x0,y1],[x1,y1],[x2,y2],[x2,y3],[x1,y4],[x0,y4]	],
					paths=[	[0,1,2,3,4,5]	]);
	}
	else
	{
		rotate_extrude(convexity=10, $fn=fn4)
		polygon(points=[	[x0,y0],[x1,y0],[x1,y1],[x2,y2],
								[x2,y3],[x1,y4],[x1,y5],[x0,y5]	],
					paths=[	[0,1,2,3,4,5,6,7]	]);
	}
}

module knurled_finish(ord, ird, lf, sh, fn, rn)
{
    for(j=[0:rn-1])
    assign(h0=sh*j, h1=sh*(j+1/2), h2=sh*(j+1))
    {
        for(i=[0:fn-1])
        assign(lf0=lf*i, lf1=lf*(i+1/2), lf2=lf*(i+1))
        {
            polyhedron(
                points=[
                     [ 0,0,h0],
                     [ ord*cos(lf0), ord*sin(lf0), h0],
                     [ ird*cos(lf1), ird*sin(lf1), h0],
                     [ ord*cos(lf2), ord*sin(lf2), h0],

                     [ ird*cos(lf0), ird*sin(lf0), h1],
                     [ ord*cos(lf1), ord*sin(lf1), h1],
                     [ ird*cos(lf2), ird*sin(lf2), h1],

                     [ 0,0,h2],
                     [ ord*cos(lf0), ord*sin(lf0), h2],
                     [ ird*cos(lf1), ird*sin(lf1), h2],
                     [ ord*cos(lf2), ord*sin(lf2), h2]
                    ],
                triangles=[
                     [0,1,2],[2,3,0],
                     [1,0,4],[4,0,7],[7,8,4],
                     [8,7,9],[10,9,7],
                     [10,7,6],[6,7,0],[3,6,0],
                     [2,1,4],[3,2,6],[10,6,9],[8,9,4],
                     [4,5,2],[2,5,6],[6,5,9],[9,5,4]
                    ],
                convexity=5);
         }
    }
}

module knurl_help()
{
	echo();
	echo("    Knurled Surface Library  v2  ");
   echo("");
	echo("      Modules:    ");
	echo("");
	echo("        knurled_cyl(parameters... );    -    Requires a value for each an every expected parameter (see bellow)    ");
	echo("");
	echo("        knurl();    -    Call to the previous module with a set of default parameters,    ");
	echo("                                  values may be changed by adding 'parameter_name=value'        i.e.     knurl(s_smooth=40);    ");
	echo("");
	echo("      Parameters, all of them in mm but the last one.    ");
	echo("");
	echo("        k_cyl_hg       -   [ 12   ]  ,,  Height for the knurled cylinder    ");
	echo("        k_cyl_od      -   [ 25   ]  ,,  Cylinder's Outer Diameter before applying the knurled surfacefinishing.    ");
	echo("        knurl_wd     -   [   3   ]  ,,  Knurl's Width.    ");
	echo("        knurl_hg      -   [   4   ]  ,,  Knurl's Height.    ");
	echo("        knurl_dp     -   [  1.5 ]  ,,  Knurl's Depth.    ");
	echo("        e_smooth   -    [  2   ]  ,,  Bevel's Height at the bottom and the top of the cylinder    ");
	echo("        s_smooth   -    [  0   ]  ,,  Knurl's Surface Smoothing :  File donwn the top of the knurl this value, i.e. 40 will snooth it a 40%.    ");
	echo("");
}

/*
 *    polyScrewThread.scad    by aubenc @ Thingiverse
 *
 * This script contains the library modules that can be used to generate
 * threaded rods, screws and nuts.
 *
 * http://www.thingiverse.com/thing:8796
 *
 * CC Public Domain
 */

module screw_thread(od,st,lf0,lt,rs,cs)
{
    or=od/2;
    ir=or-st/2*cos(lf0)/sin(lf0);
    pf=2*PI*or;
    sn=floor(pf/rs);
    lfxy=360/sn;
    ttn=round(lt/st)+1;
    zt=st/sn;

    intersection()
    {
        if (cs >= -1)
        {
           # thread_shape(cs,lt,or,ir,sn,st);
        }

        full_thread(ttn,st,sn,zt,lfxy,or,ir);
    }
}

module hex_nut(df,hg,sth,clf,cod,crs)
{

    difference()
    {
        hex_head(hg,df);

        hex_countersink_ends(sth/2,cod,clf,crs,hg);

        screw_thread(cod,sth,clf,hg,crs,-2);
    }
}

module hex_screw(od,st,lf0,lt,rs,cs,df,hg,ntl,ntd)
{
    ntr=od/2-(st/2+0.1)*cos(lf0)/sin(lf0);

    union()
    {
        hex_head(hg,df);

        translate([0,0,hg])
        if ( ntl == 0 )
        {
            cylinder(h=0.01, r=ntr, center=true);
        }
        else
        {
            if ( ntd == -1 )
            {
                cylinder(h=ntl+0.01, r=ntr, $fn=floor(od*PI/rs), center=false);
            }
            else if ( ntd == 0 )
            {
                union()
                {
                    cylinder(h=ntl-st/2,
                             r=od/2, $fn=floor(od*PI/rs), center=false);

                    translate([0,0,ntl-st/2])
                    cylinder(h=st/2,
                             r1=od/2, r2=ntr,
                             $fn=floor(od*PI/rs), center=false);
                }
            }
            else
            {
                cylinder(h=ntl, r=ntd/2, $fn=ntd*PI/rs, center=false);
            }
        }

        translate([0,0,ntl+hg]) screw_thread(od,st,lf0,lt,rs,cs);
    }
}

module thread_shape(cs,lt,or,ir,sn,st)
{
    if ( cs == 0 )
    {
        cylinder(h=lt, r=or, $fn=sn, center=false);
    }
    else
    {
        union()
        {
            translate([0,0,st/2])
              cylinder(h=lt-st+0.005, r=or, $fn=sn, center=false);

            if ( cs == -1 || cs == 2 )
            {
                cylinder(h=st/2, r1=ir, r2=or, $fn=sn, center=false);
            }
            else
            {
                cylinder(h=st/2, r=or, $fn=sn, center=false);
            }

            translate([0,0,lt-st/2])
            if ( cs == 1 || cs == 2 )
            {
                  cylinder(h=st/2, r1=or, r2=ir, $fn=sn, center=false);
            }
            else
            {
                cylinder(h=st/2, r=or, $fn=sn, center=false);
            }
        }
    }
}

module full_thread(ttn,st,sn,zt,lfxy,or,ir)
{
    for(i=[0:ttn-1])
    {
        for(j=[0:sn-1])
        {
            polyhedron(
                  points=[
                          [0,                  0,                  i*st-st            ],
                          [ir*cos((j+1)*lfxy), ir*sin((j+1)*lfxy), i*st+(j+1)*zt-st   ],
                          [ir*cos(j*lfxy),     ir*sin(j*lfxy),     i*st+j*zt-st       ],
                          [or*cos((j+1)*lfxy), or*sin((j+1)*lfxy), i*st+(j+1)*zt-st/2 ],
                          [or*cos(j*lfxy),     or*sin(j*lfxy),     i*st+j*zt-st/2     ],
                          [0,                  0,                  i*st+st            ],
                          [ir*cos((j+1)*lfxy), ir*sin((j+1)*lfxy), i*st+(j+1)*zt      ],
                          [ir*cos(j*lfxy),     ir*sin(j*lfxy),     i*st+j*zt          ]
                         ],
               triangles=[
                          [0,1,2],
                          [5,6,3],[5,3,0],[0,3,1],
                          [3,4,1],[1,4,2],
                          [3,6,4],[4,6,7],
                          [0,2,4],[0,4,5],[5,4,7],
                          [5,7,6]
                         ],
               convexity=5);
        }
    }
}

module hex_head(hg,df)
{
    cylinder(h=hg, r=df/2/sin(60), $fn=6, center=false);
}

module hex_countersink_ends(chg,cod,clf,crs,hg)
{
    translate([0,0,-0.1])
    cylinder(h=chg+0.01,
             r1=cod/2,
             r2=cod/2-(chg+0.1)*cos(clf)/sin(clf),
             $fn=floor(cod*PI/crs), center=false);

    translate([0,0,hg-chg+0.1])
    cylinder(h=chg+0.01,
             r1=cod/2-(chg+0.1)*cos(clf)/sin(clf),
             r2=cod/2,
             $fn=floor(cod*PI/crs), center=false);
}

```


[User]
Hey, I'm looking for some help designing a parametric corner routing jig in OpenSCAD. I've got a pretty good idea of what I want, and I've even got some existing code as a starting point, but I want a new version from the ground up. The jig is basically a flat plate with a corner cutout for different types of routing, plus fences to guide the router.

Here's the main functionality I'm looking for:

*   **Corner Modes:** I need to be able to select different corner treatments:
    *   Rounding outward (standard radius)
    *   Rounding inward (cutout)
    *   Chamfer (simple angled cutout)
    *   Elliptical rounding (a rotated ellipse fitted into the corner)
    *   Combined outward + inward rounding
    *   Combined inward + outward rounding

*   **Asymmetric Radius/Offset:** I need to be able to set separate radius/offset values for the two sides of the corner in every mode (except the combined modes, where only 1 radius is used), or set the jig to be symmetric (i.e., use only a single radius).

*   **Plate:** The base plate should have a configurable minimum size, and a configurable height. The size should grow if the fence extends outside the minimal size.

*   **Fence:** The fences should be of a configurable thickness and height, plus a configurable offset from the edge of the rounded part. The fence should not be shorter than a minimum length.

*   **Holding:** I need options for holding the jig:
    *   A simple finger hole.
    *   A hole and chamfer for a countersunk screw.
    *   A hole for a hex nut.

*   **Clamp Plates:** I need an option to add clamp plates on the sides for use with a router not mounted on a table. These plates need configurable width, depth, and height.

*   **Fastening Screws:** I need an option to add countersunk screw holes for fastening the jig to the workpiece, with a configurable screw diameter and offset to the fence.

*   **Labels:** I need an option to turn on/off labels that show the radius or offset values on the jig.

I also would like to specify the OpenSCAD file to use a default `$fa` of 1 and `$fs` of 0.25.

I think that covers most of the important stuff. This needs to be a new file or files from the ground up and should be parametrically designed to accommodate all of these use cases. I'm not going to try and attach any code, but I did include the current code I have in the prompt.

[Assistant]
RoundedCornerJig.scad:
```
//
// The ultimate corner treatment jig: rounding outward, inward, elliptical or chamfering
// Corner radius can be symmetric or asymmetric.
//
//  Author: MrFuzzy_F,
//  License: CC BY-NC
//

$fa=1*1;
$fs=0.25*1;

// corner rounding/cutting mode
corner_mode = 0; // [0:Rounding outward,1:Rounding inward,2:Chamfer,3:Elliptical,4:Outward+Inward,5:Inward+Outward]

// symmetric: ignore r2 settings and use r1 for both edges
symmetric_mode = 1; // [0:asymmetric (use r1 and r2),1:symmetric (use only r1)]

// corner radius / chamfer offset / ellipsis radius
r1 = 30;

// Asymmetric mode: corner radius / chamfer offset / ellipsis radius. In asymmetric mode this is the left radius and r1 is the right radius (when viewed from top)
r2 = 10;

// holding type
holder_type = 0; // [0:Finger hole,1:Screw,countersunk,2:Screw,hex head]

// show corner size label
show_label = 1; // [0:No,1:Yes]

/* [ Plate ] */

// minimal side length of ground plate
plate_size_min = 100;

// height of base plate
plate_height = 8.5;

/* [ Fence ] */

// fence thickness
fence_thickness = 5;

// offset of fence to end of rounded part
fence_offset = 20;

// fence height over plate
fence_height = 10;

// fence minimal length - plate size will be adjusted if fence length would fall below
fence_min_length = 35;

/* [ Clamp plates ] */

// the base jig design is for the use with a router table. For the use with the router on top the jig can be extended with a flat section for clamps. Note that you need to enable support when printing.
add_clamp_plates = "no"; // [yes, no]

// width of clamp plate.
w_clamp_plate = 30;

// depth of clamp plate. Defines also the amount of saved material on the main jig body.
d_clamp_plate = 40;

// height of clamp plate. If you want to use the router on top you might either want to increase the plate height further in order to have the clamps below the jig surface or use wider plates such that the router does not collide with the clamps.
h_clamp_plate = 3.5;

/* [ Fastening screws ] */

// if you want to screw the jig to the workpiece, eg. from underneath
add_fastening_screws = "no"; // [no, yes]

// diameter of fastening screws
d_fastening_screws = 4;

// offset of screws to fence
offset_fastening_screws = 15;

/* [ Holder ] */

// Type: finger holder - hole diameter
finger_hole_diameter = 20;

// Type: Screwed knob - screw diameter
holder_screw_diameter = 8.2;

// Type: Screwed knob - screw head diameter. Flat sides for hex head.
holder_screw_head_diameter = 13.0;

// thickness of screw head
holder_screw_head_thn = 5.5;

/* [ Hidden ] */
// computed or hidden
corner_radius = r1 > r2 ? r1 : r2;
plate_size = plate_size_min-corner_radius-fence_offset >= fence_min_length ? plate_size_min : fence_min_length + fence_offset + corner_radius;
holder_pos_x = plate_size * 0.6;
holder_pos_y = plate_size * 0.6;
holder_bore = holder_type == 0 ? finger_hole_diameter : holder_screw_diameter;
r2_mod = symmetric_mode == 1 ? r1 : r2;

if (plate_size_min != plate_size) {
    echo("**********************************************************************");
    echo("INFO - fence length falls below fence_min_length => plate size increased to: ", plate_size);
    echo("**********************************************************************");
}

jig();

//
// NOTE: adding 0.02 or 0.01 to a cutout z value or z-translation is just to have
//       a full viewable cutout in the 3D View. Otherwise the Viewer displays this
//       semi-transparent plane if object and cutout have same height
//

module jig() {

    difference() {
        union() {
            jig_plate();
            translate([holder_pos_x, holder_pos_y, 0])
                cylinder(plate_height, d=holder_bore+30);
        }

        // hole for finger holding or screw
        translate([holder_pos_x, holder_pos_y, -0.01])
        {
            cylinder(plate_height+0.02, d=holder_bore);

            if (holder_type == 1) {
                // chamfer for countersunk screw head
                translate([0,0,plate_height-holder_screw_head_thn+0.02])
                    cylinder(holder_screw_head_thn, d1=holder_screw_diameter, d2=holder_screw_head_diameter);
            } else if (holder_type == 2) { // hex nut
                translate([0,0,plate_height-holder_screw_head_thn])
                    hex_nut(holder_screw_head_diameter, holder_screw_head_thn);
            }
        }

        if (show_label == 1) {
            if (corner_mode >= 4) {
                label(r1,r1);
            }
            else if (corner_mode == 3) {
                label(r1,r2);
            } else {
                label(r1,r2_mod);
            }
        }

    }
}

module jig_plate() {

    difference() {
        union() {
            if (corner_mode == 3) {
                rounding_outward_elliptical(r1,r2);  // ignore symmetric_mode
            } else {
                difference() {
                    cube([plate_size, plate_size, plate_height]);
                    translate([-0.01, -0.01, -0.01])
                        cube([r1+0.01, r2_mod+0.01, plate_height+0.02]);
                }
            }

            if (corner_mode == 0) {
                rounding_outward(r1,r2_mod);
            } else if (corner_mode == 1) {
                rounding_inward(r1,r2_mod);
            } else if (corner_mode==2) {
                chamfer(r1,r2_mod);
            } else if (corner_mode==4) {
                rounding_outward_inward(r1);
            } else if (corner_mode==5) {
                rounding_inward_outward(r1);
            }

        }

        // cut-out, save material
        translate([0, 0, -0.01])
        linear_extrude(plate_height+0.02)
            polygon(points=[[plate_size+0.01, d_clamp_plate], [plate_size+0.01, plate_size+0.01], [d_clamp_plate, plate_size+0.01]]);

        if (add_fastening_screws == "yes") {
            translate([plate_size/2, offset_fastening_screws, -0.01]) {
                cylinder(plate_height+0.02, d=d_fastening_screws);
                cylinder(plate_height/2, d1=d_fastening_screws*2.5, d2=d_fastening_screws);
            }
            translate([offset_fastening_screws, plate_size/2, -0.01]) {
                cylinder(plate_height+0.02, d=d_fastening_screws);
                cylinder(plate_height/2, d1=d_fastening_screws*2.5, d2=d_fastening_screws);
            }

        }

    }

    if (corner_mode != 3) {
        // right fence (viewed from top)
        translate([r1+fence_offset, -fence_thickness, 0])
            cube([plate_size-r1-fence_offset, fence_thickness, fence_height+plate_height]);

        // left fence (viewed from top)
        translate([-fence_thickness, r2_mod+fence_offset, 0])
            cube([fence_thickness, plate_size-r2_mod-fence_offset, fence_height+plate_height]);
    }

    if (add_clamp_plates == "yes") {
        translate([plate_size, 0, plate_height-h_clamp_plate])
            cube([w_clamp_plate, d_clamp_plate, h_clamp_plate]);

        translate([0, plate_size, plate_height-h_clamp_plate])
            cube([d_clamp_plate, w_clamp_plate, h_clamp_plate]);
    }

}

module rounding_outward(r1, r2) {

    h = plate_height;
    translate([r1, r2, 0])
        resize([r1*2, r2*2, h])
            cylinder(h, r=r1);
    chamfer(r1,r2);
}

module rounding_outward_elliptical(r1, r2) {
    // ellipsis is rotated at 45 degree angle and fitted into corner
    // such that it touches the workpiece axes

    // module creates entire plate

    h = plate_height;

    // compute the touching points of the ellipsis at 45 degree rotation angle
    a1 = r1 / sqrt(1 + pow((r2/r1),2));
    b1 = r2 / sqrt(1 + pow((r1/r2),2));
    alpha = atan(b1/a1);
    rad = sqrt(a1*a1 + b1*b1);
    a1_trans = rad * cos(alpha) * cos(45) - rad * sin(alpha) * sin(45);
    b1_trans = rad * sin(alpha) * cos(45) + rad * cos(alpha) * sin(45);

    translate([b1_trans, b1_trans, 0])
        rotate([0,0,45])
            resize([r2*2, r1*2, h])
                cylinder(h, r=r2);

    rect1 = b1_trans + a1_trans;

    plate_size_mod = plate_size_min-rect1-fence_offset >= fence_min_length ? plate_size_min : fence_min_length + fence_offset + rect1;

    linear_extrude(h)
        polygon(points=[[rect1,0], [plate_size_mod, 0], [plate_size_mod,plate_size_mod], [0,plate_size_mod], [0,rect1]]);

    // right fence (viewed from top)
    translate([rect1+fence_offset, -fence_thickness, 0])
        cube([plate_size_mod-rect1-fence_offset, fence_thickness, fence_height+plate_height]);

    // left fence (viewed from top)
    translate([-fence_thickness, rect1+fence_offset, 0])
        cube([fence_thickness, plate_size_mod-rect1-fence_offset, fence_height+plate_height]);

}

module rounding_inward(r1, r2) {

    h = plate_height;
    difference() {
        cube([r1, r2, h]);
        translate([0, 0, -0.01])
            resize([r1*2, r2*2, h+0.02])
                cylinder(h, r=r1);
    }
}

module rounding_inward_outward(r1) {

    mirror([1,-1,0])
        rounding_outward_inward(r1);
}

module rounding_outward_inward(r1) {

    difference() {
        union() {
            chamfer(r1,r1);
            translate([r1, r1/2, 0])
                cylinder(plate_height, r=r1/2);
        }
        translate([0, r1/2, -0.01])
            cylinder(plate_height+0.02, r=r1/2);
    }
}

module chamfer(r1, r2) {
    h = plate_height;
    linear_extrude(h)
        polygon([[r1,0],[r1,r2],[0,r2]], paths=[[0,1,2]]);
}

module label(r1,r2) {
    font_size = 5;
    translate([plate_size-5,font_size*2,0])
    {
        mirror([0,1,0])
        linear_extrude(height = 1) {
            if (r1 != r2) {
                text(text = str(r1,"mm / ", r2, "mm"), size = font_size, halign = "right");
            } else {
                text(text = str(r1,"mm"), size = font_size, halign = "right");
            }
        }
    }
}

module hex_nut(d_head_flat, thn_head) {
    r = (d_head_flat/2) / cos(30);
    linear_extrude(thn_head+0.02)
        polygon(points = [[r, 0], [r * cos(60), r * sin(60)],
                          [r * cos(120), r * sin(120)],
                          [r * cos(180), r * sin(180)],
                          [r * cos(240), r * sin(240)],
                          [r * cos(300), r * sin(300)]]);
}

```


[User]
I'm looking to create a customizable plug for a hole, and I've got a few ideas on the design. It should have a lip at the base, a main body with segments that provide some springiness, and an optional hole through the center.

Here are the key parameters I need to control:

*   **Overall Height:** The total height of the plug.
*   **Fill Hole Size:** The diameter of the main body that fits into the hole.
*   **Lip Diameter:** The diameter of the lip at the base.
*   **Number of Segments:** The number of segments making up the springy portion.
*   **Gap Between Segments:** The space between each segment.
*   **Diameter Overhang:** How much the top of the main body overhangs the fill hole size.
*  **Segment Thickness:** The thickness of each segment of the spring section.
*   **Hole Diameter:** The diameter of the optional hole through the center (0 for no hole).
*   **Base Thickness:** The thickness of the base lip.
*   **Chamfer:** An option to include or exclude a chamfer on the lip of the base.

I need a parametric OpenSCAD file, or multiple if that's easier, that allows me to define all of these parameters. I'd like the design to include:

1.  A circular base with a lip that extends out from the main cylindrical body
2.  A main cylindrical body with springy segments cut out. These segments should have an overhang at the top to help them grip.
3.  An optional hole running through the center of the part.
4.  An optional chamfer on the base lip for easier insertion.

I think I want the segments to be created by using a `for` loop to generate a series of cutouts. And I would like to be able to use a boolean operation to create an intersection of the spring section with a cylinder to create the segments. I'm not sure the best way to do the chamfer - maybe another module that adds and subtracts cylinders?

I'm hoping to be able to easily modify any of these parameters through the customizer, or directly in the OpenSCAD file.

Could you help me with this?

[Assistant]
Plug_that_hole_2.scad:
```

Overall_height=8;
Fill_hole_size=13.4;
Lip_diameter=19.4;
Number_of_segments=5;
Gap_between_segments=1.8;
Diameter_overhang=1.9;
segment_thickness=2.9;
hole_diameter=1;// hole in center 0= no hole
base_thickness=1.2;

module all(){
cylinder(  base_thickness, d1=Lip_diameter,  d2=Lip_diameter  );

seg_depth=Overall_height-base_thickness;

module spring_cap (){
difference(){
cylinder(h=Overall_height, d1=Fill_hole_size, d2=Fill_hole_size+Diameter_overhang, center=false);
translate([0,0,Overall_height-seg_depth]) cylinder(h=Overall_height, d1=Fill_hole_size-segment_thickness, d2=Fill_hole_size-segment_thickness, center=false);
Number_of_segments=fill_angle/Number_of_segments;
for (a =[start_angle:Number_of_segments:fill_angle])
rotate([0,0,a])
translate([0,0,Overall_height-seg_depth])
translate([-Gap_between_segments/2,0,0]) cube([Gap_between_segments,Fill_hole_size,Overall_height],center=false);

difference(){
    translate([0,0,-Overall_height/3])
cylinder(h=Overall_height, d1=Fill_hole_size+Diameter_overhang, d2=Fill_hole_size+Diameter_overhang, center=false);
cylinder(h=Overall_height, d1=Fill_hole_size, d2=Fill_hole_size+Diameter_overhang/2, center=false);
}

translate([0,0,-0.1]) cylinder(h=Overall_height, d1=hole_diameter, d2=hole_diameter, center=false);

}
}

$fn=180;
fill_angle=360;
start_angle=0;

intersection(){
spring_cap ();
cylinder(h=Overall_height, d1=Fill_hole_size+5, d2=Fill_hole_size, center=false);
}

}

difference(){
all();
translate([0,0,-0.1]) cylinder(h=Overall_height, d1=hole_diameter, d2=hole_diameter, center=false,$fn=60);
}

```
Plug_that_hole.scad:
```

Overall_height=8;
Fill_hole_size=13.4;
Lip_diameter=19.4;
Number_of_segments=5;
Gap_between_segments=1.8;
Diameter_overhang=1.9;
segment_thickness=2.9;
hole_diameter=0.;// hole in center 0= no hole
base_thickness=1.2;

cylinder(  base_thickness, d1=Lip_diameter,  d2=Lip_diameter  );

seg_depth=Overall_height-base_thickness;

module spring_cap (){
difference(){
cylinder(h=Overall_height, d1=Fill_hole_size, d2=Fill_hole_size+Diameter_overhang, center=false);
translate([0,0,Overall_height-seg_depth]) cylinder(h=Overall_height, d1=Fill_hole_size-segment_thickness, d2=Fill_hole_size-segment_thickness, center=false);
Number_of_segments=fill_angle/Number_of_segments;
for (a =[start_angle:Number_of_segments:fill_angle])
rotate([0,0,a])
translate([0,0,Overall_height-seg_depth])
translate([-Gap_between_segments/2,0,0]) cube([Gap_between_segments,Fill_hole_size,Overall_height],center=false);

difference(){
    translate([0,0,-Overall_height/3])
cylinder(h=Overall_height, d1=Fill_hole_size+Diameter_overhang, d2=Fill_hole_size+Diameter_overhang, center=false);
cylinder(h=Overall_height, d1=Fill_hole_size, d2=Fill_hole_size+Diameter_overhang/2, center=false);
}

translate([0,0,-0.1]) cylinder(h=Overall_height, d1=hole_diameter, d2=hole_diameter, center=false);

}
}

$fn=180;
fill_angle=360;
start_angle=0;

intersection(){
spring_cap ();
cylinder(h=Overall_height, d1=Fill_hole_size+5, d2=Fill_hole_size, center=false);
}

```
Plug_that_hole_3.scad:
```

Overall_height=8;
Fill_hole_size=13.4;
Lip_diameter=19.4;
Number_of_segments=5;
Gap_between_segments=1.8;
Diameter_overhang=1.9;
segment_thickness=2.9;
hole_diameter=1;// 1=hole in center 0= no hole
base_thickness=1.2;
chamfer="yes";// "yes" or "no"

module all(){
cylinder(  base_thickness, d1=Lip_diameter,  d2=Lip_diameter  );

seg_depth=Overall_height-base_thickness;

module spring_cap (){
difference(){
cylinder(h=Overall_height, d1=Fill_hole_size, d2=Fill_hole_size+Diameter_overhang, center=false);
translate([0,0,Overall_height-seg_depth]) cylinder(h=Overall_height, d1=Fill_hole_size-segment_thickness, d2=Fill_hole_size-segment_thickness, center=false);
Number_of_segments=fill_angle/Number_of_segments;
for (a =[start_angle:Number_of_segments:fill_angle])
rotate([0,0,a])
translate([0,0,Overall_height-seg_depth])
translate([-Gap_between_segments/2,0,0]) cube([Gap_between_segments,Fill_hole_size,Overall_height],center=false);

difference(){
    translate([0,0,-Overall_height/3])
cylinder(h=Overall_height, d1=Fill_hole_size+Diameter_overhang, d2=Fill_hole_size+Diameter_overhang, center=false);
cylinder(h=Overall_height, d1=Fill_hole_size, d2=Fill_hole_size+Diameter_overhang/2, center=false);
}

translate([0,0,-0.1]) cylinder(h=Overall_height, d1=hole_diameter, d2=hole_diameter, center=false);

}
}

$fn=180;
fill_angle=360;
start_angle=0;

intersection(){
spring_cap ();
cylinder(h=Overall_height, d1=Fill_hole_size+5, d2=Fill_hole_size, center=false);
}

}

difference(){
all();
translate([0,0,-0.1]) cylinder(h=Overall_height, d1=hole_diameter, d2=hole_diameter, center=false,$fn=60);

if (chamfer=="yes") chamfer ();

}

module chamfer (){
    difference(){
 cylinder(h=base_thickness,d1=Lip_diameter+10,d2=Lip_diameter+10,$fn=80);
translate([0,0,-0.1]) cylinder(h=base_thickness+0.2,d1=Lip_diameter-base_thickness*2,d2=Lip_diameter,$fn=80);
    }
}

```


[User]
I need an OpenSCAD design for a parametric clip to hold an LED strip to the edge of a board. It should be something similar to the Thingiverse design at https://www.thingiverse.com/thing:3496300 but I'd like it created from scratch and I'd like it to be a little more flexible.

Here are the main requirements:

1.  **Two-sided Design:** One side of the clip needs to securely hold an LED strip, and the other side should clamp onto the edge of a board or panel.
2.  **Parametric Dimensions:** Everything should be adjustable via parameters, including the width and height of both the LED strip and the board being clamped. I should be able to specify tolerances for both.
3.  **Clamping Mechanism:** The board clamping side should use a simple but effective method, maybe a cylinder-based design as shown in the linked model to create a springy grip.
4.  **LED Strip Retainer:** The LED strip side should feature an arc or channel to hold the strip in place, similar to the Thingiverse design.
5.  **Clamp Thickness:** The thickness of the clamping features should also be parametric.
6.  **Clamp Length:** The overall length of the clip should also be adjustable.
7.  **Rounded Corners/Edges:** I'd like to have the option to specify a radius for some edges and corners to make the design less sharp.
8.  **Tolerance:** A small value (epsilon or `eps`) should be used when dealing with subtractive shapes to avoid issues due to floating-point rounding.

I expect I'll need to be able to adjust these parameters:

*   `w_board`: Width of the board being clamped.
*   `h_board`: Height of the board being clamped.
*   `board_clamp_radius`: Radius of the cylinders/arcs that clamp the board.
*   `w_led`: Width of the LED strip.
*   `h_led`: Height of the LED strip.
*   `led_retainer_radius`: Radius of the arc that retains the LED strip.
*  `clamp_thickness`: Thickness of the clip material.
*   `clamp_length`: Length of the clip.
* `edge_radius`: A radius for rounding some edges and corners for comfort and aesthetics
*   `tolerance`: An epsilon/tolerance value.

I don't need any external libraries. I want it all built in with basic OpenSCAD code. Could you please generate the OpenSCAD file(s) for this?

[Assistant]
Parametric_LED_Strip_Clip.scad:
```
// Parametric LED Strip Holder for Board Edges
// https://www.thingiverse.com/thing:3496300
// by Bike Cyclist
// https://www.thingiverse.com/Bikecyclist

// Width of the clamped board
w_board = 22.5;

// Net height of the clamped length
h_board = 12;

// Radius of the clamping-end cylinder
r_board = 1;

// Width of the LED strip (including tolerance)
w_led = 8.5;

// Height of the LED strip (including tolerance)
h_led = 1.2;

// Radius of the LED strip retaining arc
r_led = 0.5;

// Thickness of the clamp features
th_clamp = 1;

// Length of the clamp
l_clamp = 15;

// Number of facets
$fn = 32;

// Small distance to ensure proper meshing
eps = 0.01;

rotate ([0, 90, 0])
{
    halfclamp (w_board, h_board, r_board, 0);

    translate ([0, 0, -th_clamp])
    mirror ([0, 0, 1])
    halfclamp (w_led, h_led, r_led);

    if (w_led < w_board)
    {
        chamfer ();

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

module chamfer ()
{
    hull ()
    {
        translate ([0, w_board/2 + th_clamp, -eps])
        rotate ([0, 90, 0])
        cylinder (r = eps, h = l_clamp, center = true);

        translate ([0, w_led/2 + th_clamp/2, -eps])
        rotate ([0, 90, 0])
        cylinder (r = eps, h = l_clamp, center = true);

        translate ([0, w_led/2 + th_clamp - r_led, h_led + r_led])
        rotate ([0, 90, 0])
        cylinder (r = r_led, h = l_clamp, center = true);
    }

    hull ()
    {
        translate ([0, w_led/2 + th_clamp/2, h_led + r_led])
        rotate ([0, 90, 0])
        cylinder (r = r_led, h = l_clamp, center = true);
    }
}

module halfclamp (width, free_height, r_corner)
{
    height = free_height + r_corner + th_clamp;
    d_corner = th_clamp - r_corner;

    translate ([0, 0, -height])
    {
        difference ()
        {
            ccube ([l_clamp, width + 2 * th_clamp, height]);

            epsdown ()
            ccube ([l_clamp + 2 * eps, width, height - th_clamp]);
        }

        for (i = [-1, 1])
            translate ([0, i * ((width + 2 * th_clamp)/2 - r_corner), 0])
            rotate ([0, 90, 0])
            hull ()
            {
                cylinder (d = 2 * r_corner, h = l_clamp, center = true);

                translate ([0, -i * d_corner, 0])
                cylinder (d = 2 * r_corner, h = l_clamp, center = true);
            }
    }
}

module ccube (dim)
{
    translate ([0, 0, dim[2]/2])
    cube ([dim [0], dim [1], dim [2]], center = true);
}

module epsdown (n = 1)
{
    translate ([0, 0, -n * eps])
    children ();
}
```


[User]
Hey, I'm looking to get a customizable stand designed for a sphere, like a moon or globe, that can also hold an LED light at the bottom. I'd like it to be a parametric OpenSCAD design, so I can tweak it easily for different sized spheres and lights.

Specifically, I need to be able to control the following:

*   **Sphere Diameter:** This would be the diameter of the sphere that will be resting on top of the stand.
*   **Inner Diameter:** The inner diameter of the stand where the light will sit (or where it will be empty if not using a light)
*   **Height of Lamp:**  The height of the lamp I want to put inside the stand. This could be 0 if no lamp is required, and should affect the total height calculation of the stand so the sphere doesn't rest on the lamp, or the table.
*  **Gap between Lamp and Sphere:** The space I want to leave between the top of the lamp and the bottom of the sphere.
*   **Wall Thickness:** How thick the walls of the stand should be.
*   **Bottom Thickness:**  The thickness of the bottom part of the stand. If set to zero, then no bottom.
*   **Flare Angle:** I'd like the base to have a flare option, with the flare angle being adjustable in degrees (like a cone). A 90 degree flare angle would make it a straight cylinder base. I think limiting the range to 20-90 degrees would make sense.
*   **Flared Inner Wall:** This would be a boolean flag (0 or 1) that controls whether the inner wall is also flared along with the outer wall, or if the inner wall is straight.
*   **Facets:**  For the cylinder, it should let me set the number of facets to make it a cylinder or polygon. I'd also like this to be easily adjustable in the range of 8-100.

It should automatically calculate the total height of the stand based on these parameters, so that the sphere does not touch the lamp or the table, and I can easily use it with different sized globes and lights.

I don't need any specific libraries other than what's built in to OpenSCAD. Could you generate an OpenSCAD file with this functionality?

[Assistant]
CustomizableMoonStand.scad:
```
// This is a stand for:
//    Moon https://www.thingiverse.com/thing:2955930,
//    Earth Globe https://www.thingiverse.com/thing:2565357,
//    Jupiter https://www.thingiverse.com/thing:2747956,
//    or any other sphere.
// This stand is designed to put a led light in the bottom.
// I use the Ozark Trail 3-LED Headlamp from Walmart which sells for 1 USD in the store.
// https://www.walmart.com/ip/Ozark-Trail-10-Pack-LED-Headlamp-for-Camping-and-Outdoor-Use/49332881
// All measurements are in millimeters.
// The total height of the stand is calculated based on the measurements you provide
// so that the sphere does not touch the lamp.

/* [Parameters] */
// (mm) this is the diameter of the sphere which will rest on top of the stand
sphere_diameter = 72;

// (mm) if using a lamp, make sure you lamp fits in here
stand_inner_diameter = 54;
// (mm) you can set this to zero if you don't need room for a lamp
height_of_lamp = 17;
// (mm)
gap_between_lamp_and_sphere = 1;

// (mm) you may adjust the wall thickness to make the stand more or less translucent
wall_thickness = 3;
// (mm) you can set this to zero to remove the bottom
bottom_thickness = 4;
// (degrees) decrease this number to create a flared base
flare_angle = 90; // [20:90]
// for flared bases, do you want the inner wall to also be flared?
flare_inner_wall = 0; // [0:no,1:yes]

// number of facets to create the cylinder, use a smaller number for quick preview, larger number before creating the STL
FN = 50; // [8:100]

/* [Hidden] */
$fn=FN;
innerRadius = stand_inner_diameter/2;
outerRadius = innerRadius + wall_thickness;
outerDiameter = outerRadius*2;
sphereRadius = sphere_diameter/2;
a = acos((sphereRadius*sphereRadius*2-(outerDiameter*outerDiameter))/(2*sphereRadius*sphereRadius));
// this is the height of the portion of the sphere that drops into the outer cylinder
heightOfSphereInCylinder = (sphere_diameter/2) * (1 - cos(a/2));
distanceToBottomOfSphere = bottom_thickness + height_of_lamp + gap_between_lamp_and_sphere;
echo(distanceToBottomOfSphere=distanceToBottomOfSphere);
totalHeight = distanceToBottomOfSphere + heightOfSphereInCylinder;
echo(totalHeight=totalHeight);

addedBaseRadius = (flare_angle < 90) ? totalHeight/tan(flare_angle) : 0;
echo(addedBaseRadius=addedBaseRadius);

difference() {
    cylinder(totalHeight,r1=outerRadius+addedBaseRadius,r2=outerRadius);
    cylinder(totalHeight,r1=innerRadius+(flare_inner_wall==1?addedBaseRadius:0),r2=innerRadius);
    //cylinder(totalHeight,r=outerRadius,true);
    //cylinder(totalHeight,r=innerRadius,true);
    translate([0,0,distanceToBottomOfSphere+sphereRadius]){
        sphere(d=sphere_diameter);
    }
}
if (bottom_thickness > 0){
    rtop = ((flare_angle < 90) ? (bottom_thickness/tan(flare_angle)) : 0);
    echo(rtop=rtop);
    cylinder(bottom_thickness,r1=outerRadius+addedBaseRadius,r2=outerRadius+addedBaseRadius-rtop);
}

```


[User]
Hey, I'm looking to design a holder for a small hygrometer/thermometer that will attach to the inside of a filament spool. I have an existing design I made in OpenSCAD but it's pretty basic, and I'd like something more parametric and robust.

The idea is to have a circular base that sits against the spool's inner diameter, then a sort of "neck" that extends inwards, and then a circular mount for the hygrometer itself.

Here's a breakdown of what I need:

*   **Spool Hole Attachment:** The design needs to attach to the spool hole, so the diameter of this part needs to be parametric. Let's call this parameter `spool_hole_diameter`. It will grab the inner surface of the spool hole using a cylindrical portion. There should be a slight lip/overhang on each side of this cylinder to prevent the holder from sliding up and down inside the spool. The base should have some through-holes for better airflow.
*   **Hygrometer Mount:** The hygrometer sits in a circular depression/recess. The diameter and depth of this recess needs to be parametric too. We'll call these parameters `hygrometer_diameter` and `hygrometer_depth`, respectively.
*   **Connecting Neck:** The neck needs to connect the spool attachment and the hygrometer mount. The length of this neck (from the base to the hygrometer recess) needs to be parametric (`neck_length`). The neck can be a simple cylinder or another shape as long as it's not too bulky, let's call this `neck_diameter`. I think a slight taper might make it look better too - I'll leave that up to you.
*   **Overall Dimensions:** I need parameters for the total height of the mount (`mount_height`) and the base thickness (`base_thickness`).
*   **Mounting:** Include a series of small support rods running from the base to the main spool attachment cylinder. This should improve stability of the design.

I'd like all the measurements to be easy to customize via variables at the beginning of the file. I'm fairly new to OpenSCAD so I would prefer a simple file that is easy to follow. I don't need any external libraries for this. The file should be well-commented and easy to customize.

[Assistant]
spool_hole_holder_for_hygrometer_V2.scad:
```
//Halterung für Hygrometer/Thermometer
//20190316 P. de Graaff

spoolhole=51;

//Fassung
translate([0,0,2])difference(){
    translate([0,0,-0.1])cylinder(d=60,h=2.1,$fn=150);
    translate([0,0,-1])cylinder(d=46,h=5,$fn=150);
}
difference(){
    translate([0,0,-0.1])cylinder(d=60,h=2,$fn=150);
    translate([0,0,-1])cylinder(d=42,h=5,$fn=150);
}

translate([0,0,0])difference(){
    rotate([180,0,0])cylinder(d2=spoolhole-2,d1=spoolhole+0.2,h=20,$fn=150);
    translate([0,0,1])rotate([180,0,0])cylinder(d=spoolhole-4,3,h=50,$fn=150);
    translate([0,0,-10])for (j=[0:30:360]){
    translate([0,0,-35])rotate([0,0,0+j])cube([60,5,40]);
    }
}
//Winkel berechnen
b=sqrt(20*20+(spoolhole-spoolhole-2)*(spoolhole-spoolhole-2));
echo(b);
gamma=acos(20/b);
echo(gamma);
for(alpha=[0:30:360]){
    rotate([0,0,-9+alpha])translate([(spoolhole-2)/2-0.3,0,-20])rotate([0,gamma/2+1,0])cylinder(d1=1,d2=1.5,h=20,$fn=50);
}
```


[User] I want to design a customizable keychain using OpenSCAD. I need it to be a rounded rectangle shape with a text label embossed on the front and a hole for a keyring. The user should be able to customize the text, the font, and the font size. The overall dimensions of the keychain should scale based on the size and length of the text. I think the overall design should be based around text size. I want to be able to control how much space there is between the edges of the text and the edges of the keychain as a multiplier of the font size as well. I don't have any existing code. I think I'll need to use the built-in text() and linear_extrude() functions. I don't think I'll be using any external libraries.

[Assistant]
customizable-keyring.scad:
```
// (c) 2019 Pavel Suchmann <pavel@suchmann.cz>
// Licensed under the terms of "Creative Commons - Public Domain Dedication"
//
// Note the source code would be more succint with minkowski()
// but its use is not recommended by Customizer's best practises.

// your text
label = "my tag";

// size of the font
size = 4; // [3:8]

// font name
font = "Liberation Sans:style=Bold"; // [ "Liberation Sans:style=Bold", "Open Sans:style=Bold", "Dejavu Serif:style=Bold", "Liberation Serif:style=Bold", "Luxi Serif:style=Bold" ]

/* [Hidden] */

$fn=30;

width = size * 2.0;
hole = 2;
length = (len(label)+2) * size;
border = size * 0.4;
height = 1.2;
emboss = 0.2;

//echo(length);
//echo(width);

difference() {
    union() {
        translate([-length/2, -width/2, 0])
            cylinder(r=border, h=height, center=true);
        translate([length/2, -width/2, 0])
            cylinder(r=border, h=height, center=true);
        translate([-length/2, width/2, 0])
            cylinder(r=border, h=height, center=true);
        translate([length/2, width/2, 0])
            cylinder(r=border, h=height, center=true);
        cube([length, width+border*2, height], center=true);
        cube([length+border*2, width, height], center=true);
    }
    union() {
        translate([hole, 0, emboss])
            linear_extrude(height)
                resize([(length - 5*hole) * 1.0, 0], auto=true)
                    text(label, size, halign="center", valign="center", font=font);
        translate([-length/2+1.5*hole, 0, -0.1])
            cylinder(r=hole, h=height*2, center=true);
    }
}
```


[User]
Okay, so I'm looking to create a parametric holder for a hygrometer that will fit inside a filament spool. I'm currently using the "EVO TOTAL PROTECTION" box by rotho for storing my filament, and I want to monitor the humidity with a small hygrometer, but I've had trouble getting it to stick. I've already got a version I created, but I want to make it properly parametric, and I'd like your help.

The holder essentially consists of a few key parts:

1.  **A top mounting disc** with a lip that grips the inner diameter of the filament spool. The spool hole diameter is `spoolhole` in my current code. This mounting disc should have a cylindrical cutout to hold the hygrometer, and the diameter of this cutout should also be a parameter.

2.  **A lower support structure**, this needs to extend from the top mounting disc down into the spool hole to support the mounting disc from the bottom of the spool. The basic shape of this support is a truncated cone that is attached to the underside of the top disc and should have supports/ribs for added strength.

3.  **A series of glide pegs or feet** that contact the inside of the spool to help keep everything centered. These are positioned around the circumference of the support structure and need to be angled.

4.  **A small rim or ridge** that goes around the bottom edge of the top mounting disk that will help secure the top disc.

I'd like all of these dimensions to be parameters, of course. So, I need parameters for:

*   `spool_hole_diameter`: The inner diameter of the filament spool
*   `hygrometer_diameter`: The outer diameter of the hygrometer to be inserted
*   `hygrometer_depth`: The depth of the hygrometer to be inserted
*   `mounting_disc_thickness`: The thickness of the top disc.
*  `mounting_disc_lip_height`: The height of the outer lip on the top disc.
*  `support_cone_height`: How tall the support cone extends down into the spool.
*  `support_cone_base_diameter`: The base diameter of the support cone.
* `support_cone_rib_count`: The number of supporting ribs to use.
*   `glide_peg_height`: How tall the glide pegs are.
* `glide_peg_offset_radius`: The radius from center the glide pegs are located.
*   `glide_peg_angle`: The angle of the glide pegs relative to the vertical.
*   `rim_height`: The height of the lower rim.
*  `rim_width`: The width of the lower rim.

I'd also appreciate if the code used BOSL2 library because I'm familiar with that. Can you create the OpenSCAD file or files for this?

[Assistant]
spool_hole_holder_for_hygrometer_V3.scad:
```
//Halterung für Hygrometer/Thermometer
//20190316 P. de Graaff

spoolhole=53;

//Fassung
translate([0,0,2])difference(){
    translate([0,0,-0.1])cylinder(d=60,h=2.1,$fn=150);
    translate([0,0,-1])cylinder(d=46,h=5,$fn=150);
}
difference(){
    translate([0,0,-0.1])cylinder(d=60,h=2,$fn=150);
    translate([0,0,-1])cylinder(d=42,h=5,$fn=150);
}
difference(){
    rotate([180,0,0])cylinder(d=spoolhole+0.2,h=2,$fn=150);
    translate([0,0,-3])cylinder(d=42,h=5,$fn=150);
}
//untere Halterung
translate([0,0,-1])difference(){
    rotate([180,0,0])cylinder(d2=spoolhole-2,d1=spoolhole+0.2,h=20,$fn=150);
    translate([0,0,1])rotate([180,0,0])cylinder(d=spoolhole-5,3,h=50,$fn=150);//-4 vielleicht zu dünn
    translate([0,0,-10])for (j=[0:30:360]){
    translate([0,0,-35])rotate([0,0,0+j])cube([60,5,40]);
    }
}
//Gleiter
//Winkel berechnen
b=sqrt(20*20+(spoolhole-spoolhole-2)*(spoolhole-spoolhole-2));
echo(b);
gamma=acos(20/b);
echo(gamma);
for(alpha=[0:30:360]){
    rotate([0,0,-9+alpha])translate([(spoolhole-2)/2-0.3,0,-21])rotate([0,gamma/2-0.2,0])cylinder(d=1,h=19.05,$fn=50);
}

//Wulst
difference(){
    translate([0,0,-19.75])rotate_extrude($fn=300)translate([(spoolhole-1)/2,0,0])intersection(){
        square([1.5,2.5],center=true);
        translate([-2.3,0,0])circle(r=3,$fn=100);
        translate([2.3,0,0])circle(r=3.5,$fn=100);
    }
    translate([0,0,-10])for (j=[0:30:360]){
    translate([0,0,-35])rotate([0,0,0+j])cube([60,5,40]);
    }
}

```


[User]
Hey there, I'm looking to create some custom cable labels with Braille text, and I'd love some help with the OpenSCAD code. I want to make it parametric so I can easily adjust the size and text later.

Here's what I have in mind:

**General Structure:**

*   The label should have an outer rim, a main plate for the Braille, and a cable holder that wraps around the wire.
*   The Braille text should be raised dots on the main plate, following the Marburg medium font standard.
*   I'd like to be able to adjust various dimensions using parameters, like label length, width, cable diameter, and thickness.

**Key Parameters:**

*   `labeltext`: The text to be displayed in Braille (string).
*   `cablediam`: Diameter of the cable (mm).
*   `lablength`: Minimum length of the label part (mm), measured after the cable holder.
*   `labwidth`: Width of the label part (mm).
*   `thickness`: Overall thickness of the label (mm).
*   `stifferspring`: A boolean (0 or 1) to add a stiffening cube for longer labels.
*  `cellroomx`: Horizontal distance between Braille cells/dots (mm).
*   `dotheight`: Height of the Braille dots (mm).
* `dotdiam`: Diameter of the braille dots
* `dotdistx`: Horizontal distance between dots within the same cell
* `dotdisty`: Vertical distance between dots within the same cell

**Specific Modules & Functionality:**

*   `rim()`: creates the outer rim of the label.
*   `labelplate()`: creates the main plate where the Braille dots will be located.
*   `cablehull()`: Creates the cable holder section.
*   `chull()`: Helper module to create the curved parts of the cable holder.
*  `stiffspring()`: conditionally adds stiffening cubes if `stifferspring` is set to 1 and the length is sufficient.
*  `textinbraille()`: Takes the input `labeltext` and generate the braille dots
*   `placepoints2()`: Helper module to translate each character into braille dots based on the braille character list.
*  `funcup2()`: A function to convert a letter to upper case.
*  `funcdy()`: A function to determine the vertical position of the braille dot.
*   `blist`: A list containing character-to-Braille dot position mappings, as shown in the code I've attached. This list defines all supported characters and the positions of the dots for each.

**Braille Details:**

*   The Braille dots should be placed according to the `blist` which has a mapping between a character and its dot positions.
*   Use the Marburg standard, which is 7mm horizontal distance between braille cells and a dot diameter of 1.5mm and dot height between 0.2 and 0.8mm (I'm defaulting to 0.8 in the provided file). I have defined dotDistx and dotDisty as 2.5mm each to separate dots in a cell.

**Other Considerations:**

*   It would be great if the design is flexible enough to adjust the Braille dot dimensions and spacing as well.
*   I'd prefer to use base OpenSCAD commands if possible, I don't want to rely on any libraries for now.

Attached is the scad file which contains the code that I have tried so far. It uses no libraries and a character mapping system (`blist`).
Let me know what you think, and if you have any questions for me!

[Assistant]
CableLabelBraille3.scad:
```
//By Coat, 18-march-2019
//Licensed under the Creative Commons - Attribution license.
//Cable-label in Braille

//Braille-measurements used here are based on https://www.pharmabraille.com/pharmaceutical-braille/marburg-medium-font-standard/

//Parameters

/* [Text and cable] */
//Text on label (use spaces for aligning)
labeltext = "fridge";
//Diameter of cable (mm)
cablediam = 8;

/* [Advanced Label] */
//Minimum Length label (part right of the cable without edge, mm)
lablength = 25;
//Width label (without edge, mm)
labwidth = 10;
//Overall thicknes of the part (mm)
thickness = 1.5;

//Makes it stiffer for lablengths over 25 mm(0 = no, 1 = yes)
  stifferspring = 1;

/* [Advanced Braille] */
//Horizontal Distance between Braille-cells/corresponding dots (6, 7 or 8 according to different standards)
cellroomx = 7.0;
//height of the dots (0.2-0.8 is according to different standards)
dotheight = 0.8;

//-----------------
//----Modules Label
//-----------------

module rim()  //outer rim
{
  difference()
  {
    cube([lo,wo,th]);
    translate([wr,wr,-0.5*th])
      cube([li+sp,wi+sp*2, th*2]);
  }
}

module labelplate()  //inner plate
{
  translate([wr+sp+cd+th, wr+sp,0])
    cube([li-cd-th,wi,th]);
}

module cablehull()   //cableholder
{
  translate([wr+sp,wr+sp,0])
    difference()
    {
      chull(cd+th*2, wi,0);
      translate([th,-wi/2,th])
        chull(cd,wi*2, th*2);
    }
}

module chull(cdh,wih,tcb)  //cableholder part
{
  hull()
  {
    translate([0,0,-tcb])
      cube([cdh, wih,cdh/2]);
    translate([cdh/2,wih/2,cdh/2])
      rotate([90,0,0])
        cylinder(d=cdh, wih, center=true);
  }
}

module stiffspring()  //extra cube at 25 mm of cableholder
{
  if (stifferspring >0 &&lo > 25+cd+th*2+sp)
  {
    translate([25+cd+th*2+sp,0,0])
    cube([wr,wo,th]);
  }
}

//---------------------------
//----Modules/functions Braille
//---------------------------

function funcup2(c) = (ord(c)>96)&&(ord(c)<123) ? chr(ord(c)-32):c;  //uppercase

function funcdy(p,n1,n2,v)= p==n1||p==n2?v:-1;  //wich row is the dot

module textinbraille()     //compose braille from text
{
  echo(labeltext);
  for(i=[0:len(labeltext)-1])
  {
    ichar = funcup2(labeltext[i]);
    for (b=blist)
    {
      if (ichar == b[0])
      {
        translate([i*cellroomx,dotdisty,0])
          placepoints2(b);
      }
    }
  }
}

module placepoints2(pl)  //character to braillecell
{
  union()
  for (p=[ 1 : len(pl) - 1 ])
  {
    dx =  pl[p]<4 ? 0 : 1;
    dy = max(funcdy(pl[p],1,4,0),
             funcdy(pl[p],2,5,1),
             funcdy(pl[p],3,6,2));

    if (dy < 0)
      echo("check your places for: ",pl[0]);

    translate([dx*dotdistx,-dy*dotdisty,0])
      hull() //*
      {
        translate([0,0,th])
          scale([1,1,dotheight/(dotdiam/2)])
            sphere(d = dotdiam);
        cylinder(d=dotdiam,th/4); //*, th/4 for a smoother transition
      }
  }
//*hull and cylinder not neccesary, but handy if you want to raise the dots a little more from the plate
}

//------------------------------
//----character translation list
//------------------------------
blist =
//character, positions of points
//1 4
//2 5
//3 6
[
["A",1],
["B",1,2],
["C",1,4],
["D",1,4,5],
["E",1,5],
["F",1,4,2],
["G",1,4,2,5],
["H",1,2,5],
["I",4,2],
["J",4,2,5],
["K",1,3],
["L",1,2,3],
["M",1,4,3],
["N",1,4,5,3],
["O",1,5,3],
["P",1,4,2,3],
["Q",1,4,2,5,3],
["R",1,2,5,3],
["S",4,2,3],
["T",4,2,5,3],
["U",1,3,6],
["V",1,2,3,6],
["W",4,2,5,6],
["X",1,4,3,6],
["Y",1,4,5,3,6],
["Z",1,5,3,6],
//numbers
["#",3,4,5,6],   //# as numberindicator
["1",1],
["2",1,2],
["3",1,4],
["4",1,4,5],
["5",1,5],
["6",1,4,2],
["7",1,4,2,5],
["8",1,2,5],
["9",4,2],
["0",4,2,5],
//punctuation
[".",2,5,6],
[",",2],
["!",2,3,5],
["?",2,3,6],
[":",2,5],
[";",2,3],
["-",3,6],         //minus char
["≥",3,5,6],       //>> (alt 242)
["≤",2,3,6],       //<< (alt 243)
["(",2,3,5,6],
[")",2,3,5,6],
["<",1,2,6],
[">",3,4,5],
["/",3,4],
["'",3],
["*",3,5],
["@",3,4,5],
//other
["+",2,5,3],
["=",2,3,5,6]
//[" "]space is every not mentioned character including the space
];

//------------------------------
//----main----------------------
//------------------------------
//secondary parameters
$fn=12;

dotdiam = 1.5;   //dot base diameter (min=1.3 - max=1.6)
dotdistx = 2.5;  // Hor distance between dots same cell
dotdisty = 2.5;  // Vert Distance between dots same cell

//cellroomy = 10; //Vert Distance between cells/corresponding dots (10.0-10.2)
labroomx = cellroomx;    //space at start

sp = 0.5;          //space between label and outerrim
wi = max(dotdisty*4, labwidth);    //inner width
cd = cablediam;    //cable diameter
th = thickness;    //thickness plate
wr = wi/4;         //width outer rim
wo = wi + sp*2 + wr*2; //total width
li = max(lablength,(len(labeltext)*cellroomx)+labroomx/2)+cd+th*2;  //inner length
lo = li + sp + wr*2;   //total length
sf = 0.6;              //factor of wi for textsize

//the thing
rim();
labelplate();
translate([wr+sp+cd+th*2+labroomx, wr+sp+wi/2,0])
  textinbraille();
cablehull();
stiffspring();

```


[User]
Hey, I'm looking to create a custom coaster for my pepper mill using OpenSCAD. I found a design I like on Thingiverse (thing:3500233) but want to make some adjustments and have a parametric version that's easy to tweak.

The basic idea is a cylindrical coaster with a slightly tapered base. I need to be able to control the following parameters:

*   **`COASTER_ROUDNESS`**:  This controls the smoothness of the curves, like the `$fn` value in OpenSCAD cylinders. A higher number means smoother.
*   **`COASTER_INNER_DIAMETER`**: The diameter of the inner circle where the pepper mill will sit.
*   **`COASTER_WALL_THICKNESS`**: The thickness of the walls of the coaster.
*   **`COASTER_BOTTOM_THICKNESS`**: The thickness of the bottom of the coaster.
*   **`COASTER_OUTTER_DIAMETER_DIFF`**:  This is the difference between the outer diameter of the base (the bottom part) and the inner diameter of the top part. A positive value makes the base a cone-like shape.
*   **`COASTER_WALL_HEIGTH`**: The height of the walls of the coaster, measured from the top of the base part.
*   **`ROUND_EDGES_THICKNESS`**: The radius of rounded edges, to be toggled on/off using `ENABLE_ROUND_EDGES`.
*   **`ENABLE_ROUND_EDGES`**: A boolean to enable or disable the rounded edges.

The design should have a base, which is essentially a shorter cylinder with a larger diameter at the bottom and then transitioning to the diameter of the main coaster walls, and then the walls of the coaster are just a cylinder rising up from the base. I'd like the design to be a difference of the outer shape with the removed inner shape, so the inner hole is created by subtracting the inner from the outer.

I'm fine with a single .scad file that has everything in it, no need to break it down into multiple files. I don't think I need any external libraries for this, it looks like it can be done with the standard OpenSCAD primitives. I would greatly appreciate if you could provide the code for this. Thanks!

[Assistant]
peper_salt_mill_coaster.scad:
```
/**
 ** Title: coaster for pepper mill
 ** Author: Angel3D
 ** Date: 17.03.2019
 ** thingiverse url: https://www.thingiverse.com/thing:3500233
 **/

// define variables section
COASTER_ROUDNESS=64;             // perfection of a round object (32 = nice roundness)
COASTER_INNER_DIAMETER=55;       // inner diameter of coaster
COASTER_WALL_THICKNESS=4;        // thickness of coaster wall
COASTER_BOTTOM_THICKNESS=4;      // thickness of bottom
COASTER_OUTTER_DIAMETER_DIFF=10; // outter diameter of the base bottom part
                                 // values >0 let the base become a cone
COASTER_WALL_HEIGTH=10;          // height of the walls, starting from top of base part
ROUND_EDGES_THICKNESS=1;         // define thickness of round edges (ENABLE_ROUND_EDGES must be set to true to enable)
ENABLE_ROUND_EDGES=false;        // enalble or desable round edges

// display section
if (ENABLE_ROUND_EDGES) {
  minkowski(){
    coaster();
    sphere(ROUND_EDGES_THICKNESS);
  }
}
else {
  coaster();
}

// modules section
module coaster(){
  difference(){
    coasterBase();
    translate([0,0,COASTER_BOTTOM_THICKNESS/2]){
      coasterInner();
    }
  }
}

module coasterInner() {
  cylinder(COASTER_WALL_HEIGTH,d=COASTER_INNER_DIAMETER+ROUND_EDGES_THICKNESS,center=true, $fn=COASTER_ROUDNESS);
}

module coasterBase(){
  cylinder(COASTER_BOTTOM_THICKNESS+COASTER_WALL_HEIGTH,d1=COASTER_INNER_DIAMETER+COASTER_OUTTER_DIAMETER_DIFF+(COASTER_WALL_THICKNESS*2),d2=COASTER_INNER_DIAMETER+(COASTER_WALL_THICKNESS*2),center=true, $fn=COASTER_ROUDNESS);
}
```


[User]
I'm looking to create a parametric OpenSCAD design for an end cap for aluminum extrusions, specifically ones with t-slots. I have a good understanding of the basic shape and the parameters I want to be able to control, and I'd like you to generate the necessary OpenSCAD code.

The end cap should have a main body that covers the end of the extrusion, and it should have inserts that fit into the t-slots. I need to be able to customize several dimensions, including:

*   **Extrusion Dimensions:**
    *   `extrusion_width`:  The nominal width of the extrusion (e.g., 30 for a 3030 extrusion).
    *   `slot_width`: The nominal width of the outer slot (the part that sticks out past the main body).
    *   `slot_height`: The nominal depth/height of the outer slot.
    *   `tslot_top_width`: The nominal width of the t-slot channel at its widest part (top of the channel).
    *   `tslot_cube_height`: The nominal height of the rectangular (cube-shaped) portion of the t-slot channel. Some extrusions don't have this.
    *    `tslot_trap_height`: The nominal height of the trapezoid-shaped portion of the t-slot channel.

*   **End Cap Dimensions:**
    *   `undersize`: A clearance value to adjust the fit of the inserts. This is not a total reduction, but rather an amount subtracted from each side. A value of 0 would mean no clearance and a very tight fit, 0.2mm seems to be a good starting value for 3030 and 0.1mm for 2020
    *   `cover_thickness`:  The thickness of the main cover part of the end cap.
    *   `corner_rounding`: The radius of the rounded corners on the main cover.
    *   `hole_size`:  Diameter of an optional hole in the center of the cap. A value of 0 should create no hole.
    *    `tab_height`: Overall height of the t-slot insert/tab, including the cover thickness

The design should use the `difference()` operation to create the hole if a `hole_size` is specified. For the t-slot inserts, I need the ability to have either just the trapezoid part, or a combination of a square/cube and then trapezoid parts of the channel. If the `tslot_cube_height` is 0, then only the trapezoid is needed. I believe I need to use `linear_extrude()` for the trapezoid portion, along with a custom `trapezoid` module.

Also, I'd like you to ensure that the t-slot inserts are positioned correctly by using a `for()` loop and a `rotate()` operation, combined with `translate()`.

I'm not looking for any complex features beyond these. I'm hoping for a fairly clean and parametric OpenSCAD file.

[Assistant]
Extrusion_End_Cap_Customizer.scad:
```
/* [Nominal Extrusion Dimensions] */

// Nominal width of the extrusion (i.e. 3030 = 30mm)
extrusion_width=30;

// Nominal width of the outer slot
slot_width=8.0;

// Nominal depth / height of the outer slot
slot_height=2.0;

// Nominal width of the t-slot channel at the top of the channel
tslot_top_width=16.5;

// Nominal height of the square portion of the t-slot channel
tslot_cube_height=3.5;

// Nominal height of the trapezoid portion of the t-slot channel
tslot_trap_height=3.5;

/* [End Cap Dimensions] */

// The amount of "margin" or gap around the tabs of the endcap (0.0 - need a hammer; 0.2 - snug; 0.5 - very loose)
undersize=0.2; // [0.0:0.05:0.5]

// Thickness of the cover / endcap
cover_thickness=3.0;

// Corner rounding diameter (in mm)
corner_rounding=2.0;

// Hole size (0 for no hole, otherwize specify exact desired diameter)
hole_size=7.3;

// Overall height of the tabs / inserts
tab_height=7;

/* [Hidden] */

// Nominal width of the t-slot channel at the bottom of the channel
tslot_bottom_width=tslot_top_width-tslot_trap_height*2;  // Because the angle of the trapezoid sides needs to be at 45 degrees, the triangle on each side is an isocolese triangle. Therefore the width of the top of the trapezoid is the bottom width - 2 times the height of the trapezoid

difference() {
	union() {

        // CREATE 4 SIDES OF COVER INSERTS
		for (a=[0:3])
			rotate([0,0,90*a])
				translate([0,-extrusion_width/2,0])
					t_slot();

        // CREATE COVER BASE WITH ROUNDED CORNERS
		translate([-extrusion_width/2+corner_rounding, -extrusion_width/2+corner_rounding,0])
			minkowski() {
				cube([extrusion_width-corner_rounding*2,extrusion_width-corner_rounding*2,cover_thickness-1]);
				cylinder(r=corner_rounding, h=1, $fn=16);
			}
	}

    // CREATE HOLE IN COVER
	cylinder(r=hole_size/2, h=cover_thickness*4, center=true);
}

module t_slot() {

    // CREATE SLOT
	translate([-slot_width/2+undersize,0,0])
		cube([slot_width-undersize*2, slot_height+undersize, tab_height+cover_thickness]);

    if (tslot_cube_height == 0) {

        // CREATE T-SLOT CHANNEL (TRAPEZOID SECTION)
        translate([0,slot_height+undersize,0])
            linear_extrude(height=tab_height+cover_thickness)
                trapezoid(bottom=tslot_top_width-undersize*2, top=tslot_bottom_width-undersize*2, height=tslot_trap_height-undersize*2);

    }

    else {

        // CREATE T-SLOT CHANNEL (CUBE SECTION)
        translate([-tslot_top_width/2+undersize,slot_height+undersize,0])
            cube([tslot_top_width-undersize*2,tslot_cube_height-undersize,tab_height+cover_thickness]);

        // CREATE T-SLOT CHANNEL (TRAPEZOID SECTION)
        translate([0,slot_height+tslot_cube_height,0])
            linear_extrude(height=tab_height+cover_thickness)
                trapezoid(bottom=tslot_top_width-undersize*2, top=tslot_bottom_width-undersize*2, height=tslot_trap_height-undersize);
    }
}

module trapezoid(bottom=10, top=5, height=2)
{
	polygon(points=[[-bottom/2,0],[bottom/2,0],[top/2,height],[-top/2,height]]);
}
```


[User]
Hey, I'm looking to generate some customizable boxes in OpenSCAD, and I'd like them to have a few specific features. I've been playing around with some basic code but need help making them fully parametric and flexible.

Basically, I need a box with a lid that fits onto it. Both the box and lid should have a defined wall thickness. The lid needs a lip to help it sit properly on the box, and there should be a small gap between the lid and box in the final printed product. I'd like to be able to specify all of these dimensions as parameters.

Here's a breakdown of the parameters I have in mind:

*   **x, y, z:** These should define the *external* dimensions of the box (and lid).
*   **edge:** This controls the wall thickness of both the box and lid.
*   **liph:** The height of the lip on the lid.
*   **sep:** This determines the separation distance between the box and the lid when they're positioned side-by-side in the final .stl output, to help me split them into separate objects.
*   **tol:** This is the tolerance, or clearance, between the lid and the box when the lid is on the box.

I think the attached code I played with gives a decent idea of the basic design I am going for, but needs to be converted to parametric design from the ground up, and I'd like a solution that incorporates the additional suggestions found here: [https://www.thingiverse.com/thing:3695305](https://www.thingiverse.com/thing:3695305). Specifically, it would be great to have it designed to make dividers and inserts easier to add later.

I'd prefer the generated OpenSCAD code to be in a single file that uses parameters to define the dimensions. I think I'll also need a `epsilon` variable to ensure proper differences between the shapes, but feel free to add anything you think I need.

[Assistant]
Box.scad:
```
x = 20;
y = 30;
z = 20;

edge = 2;
lipw = edge/2;
liph = 2;
sep = 5;
tol = 0.2;

epsilon = 0.01;

difference()
    {
        union()
        {
            translate(v=[0,0,0])
                {
                    cube(size=[x,y,z], center=false);
                }
            translate(v=[lipw,lipw,0])
                {
                    cube(size=[x-edge,y-edge,z+liph], center=false);
                }
        }
        translate(v=[edge,edge,edge+epsilon])
            {
                cube(size=[x-(edge*2),y-(edge*2),z-edge+liph], center=false);
            }
    }

difference()
    {
         translate(v=[-(x+sep),0,0])
                {
                    cube(size=[x,y,liph+edge], center=false);
                }
         translate(v=[-(x+sep-lipw+(tol/2)),edge-(lipw+(tol/2)),lipw+epsilon])
            {
                cube(size=[x+tol-(lipw*2),y-(lipw*2)+tol,lipw+liph], center=false);
            }
        }
```


[User]
I'm looking to design a parametric button housing for 3D printing, and I'd like it to be customizable with a few different parameters. I've been playing around with some basic OpenSCAD but would like to have more robust design and modularity.

Here's what I'm envisioning:

**Core Shape:**

*   The main housing should be based on a cube, but with a sloped front face, so it has a sort of truncated pyramid look. The angle of this slope needs to be adjustable, and the flat part at the top of the slope should be customizable as well.
*   The cube portion of the housing, before the slope starts, should also have its side length as a parameter.
*   The housing should have a consistent wall thickness.
*   I need to be able to control the overall number of button housings, arranged vertically, so one, two, three, or four.

**Button Hole:**

*   Each housing should have a hole for a button, centered on the sloped face.
*   I need to be able to make the hole either round or square. If round, I need to be able to set the diameter. If square, I need to be able to set the side length.

**Text Labels:**

*   I'd like an option to add text labels for each button housing, printed on the sloped face. I'd like to be able to specify the text for each button, and have a switch to turn this text on or off.

**Parameters:**

I'm thinking something like the following parameters should be included, but you can adjust as necessary:

*   `hole_dia`: Diameter of the button hole (for round holes).
*   `square_hole`: Side length of the button hole (for square holes).
*   `hole_shape`:  A variable (1 or 0) to switch between round (0) and square (1) button holes.
*   `size`: Side length of the cube portion of the housing.
*   `front_flat`: Length of the flat top edge on the sloped face of the housing.
*   `slope`: Angle of the slope on the front face (in degrees).
*   `wall_thickness`: Thickness of the walls of the housing.
*   `button_num`: Number of buttons.
*    `dotext`: A variable (1 or 0) to turn text labels on and off.
*   `button_1_text`, `button_2_text`, `button_3_text`, `button_4_text`: The text labels for each button. (I may not use all four).

The final file (or files) should use parametric design principles and utilize standard OpenSCAD modules. I do not need the MCAD or BOSL libraries. I will be 3D printing this design so considerations for such should be part of the design.

Can you generate the OpenSCAD files for this design?

[Assistant]
button_housing.scad:
```
hole_dia=16;
size=36;//size of cube to house button
front_flat=10;
slope=35;
wall_thickness=1.8;
button_num=1;

dotext=0; // 1=yes or 0=no .... please note will take more time to render if yes

/*[Custom text for up to 4 buttons]*/
button_1_text="START";
button_2_text="SW-2";
button_3_text="SW-3";
button_4_text="SW-4";

button_text = [
   [0,  button_1_text],
   [1,  button_2_text],
   [2,  button_3_text],
   [3,  button_4_text],
    ];

module profile(){
round2d(5.1,0){
difference(){
translate([0,-10,0]) square([size,size+10]);
translate([size,front_flat,-0.2]) rotate([0,0,slope]) square(size+5,size);
}
}
}

$fn=80;

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

module side(){
linear_extrude(height=wall_thickness) profile();
}

module wall(){
    difference(){
     profile();
offset(r = -wall_thickness) profile();
    }
}

module boxy() {
linear_extrude(height=size) wall();
side();
translate([0,0,size-wall_thickness]) side();
}

module housing(){
render(convexity = 1){
difference(){
boxy();
translate([0,-size*3/2,0]) cube([size*3,size*3,size*3],true);
}}
}

module body_with_hole (){
     render(convexity = 1){
    difference(){
translate([0,size*sin(slope)-front_flat*cos(slope)-(size-front_flat)/cos(30)/2,-size/2]) rotate([0,0,-slope]) housing();
translate([size*cos(slope)-wall_thickness,0,0]) rotate([0,90,0]) cylinder(  15, d1=hole_dia,  d2=hole_dia);
    }

}

}

module turn_body_with_hole (){
    translate([-size/2,size/2,0])
  rotate([90,0,0]){
ken=-(size*sin(slope)-front_flat*cos(slope)-(size-front_flat)/cos(30)/2);
echo (ken);
rotate([0,0,slope])
translate([0,ken,size/2]) body_with_hole();
  }
}

module all(){
for (a =[1:1:button_num])
translate([0,-size/2+wall_thickness,0])
translate([0,a*size-(a*wall_thickness),0]) turn_body_with_hole ();
}

module button_name (){
for (a = button_text){
    translate([0,size*a[0]-(a[0]*wall_thickness),0])
    translate([size/2,size/2,front_flat*0.2])
    rotate([90,0,90])
    linear_extrude(height=20)
    text(text = str(a[1]),size=front_flat*0.5,halign="center");
}
}
render(convexity = 1){
difference(){
all();
if (dotext==1) translate([-wall_thickness/2,0,0]) button_name ();
     }
}

```
button_housing_square_or_round_hole.scad:
```
hole_dia=14;
square_hole=14;

// 1=round or 0=square
hole_shape=1; // 1=square or 0=round

size=36;//size of cube to house button
front_flat=10;
slope=35;
wall_thickness=1.8;
button_num=1;

dotext=0; // 1=yes or 0=no .... please note will take more time to render if yes

/*[Custom text for up to 4 buttons]*/
button_1_text="START";
button_2_text="SW-2";
button_3_text="SW-3";
button_4_text="SW-4";

button_text = [
   [0,  button_1_text],
   [1,  button_2_text],
   [2,  button_3_text],
   [3,  button_4_text],
    ];

module profile(){
round2d(5.1,0){
difference(){
translate([0,-10,0]) square([size,size+10]);
translate([size,front_flat,-0.2]) rotate([0,0,slope]) square(size+5,size);
}
}
}

$fn=80;

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

module side(){
linear_extrude(height=wall_thickness) profile();
}

module wall(){
    difference(){
     profile();
offset(r = -wall_thickness) profile();
    }
}

module boxy() {
linear_extrude(height=size) wall();
side();
translate([0,0,size-wall_thickness]) side();
}

module housing(){
render(convexity = 1){
difference(){
boxy();
translate([0,-size*3/2,0]) cube([size*3,size*3,size*3],true);
}}
}

module body_with_hole (){
     render(convexity = 1){
    difference(){
translate([0,size*sin(slope)-front_flat*cos(slope)-(size-front_flat)/cos(30)/2,-size/2]) rotate([0,0,-slope]) housing();
if (hole_shape==0) translate([size*cos(slope)-wall_thickness,0,0]) rotate([0,90,0]) cylinder(  15, d1=hole_dia,  d2=hole_dia,$fn=60);
if (hole_shape==1)  translate([size*cos(slope)+wall_thickness*3,0,0]) rotate([0,90,0])cube(size = [square_hole,square_hole,size/2], center = true);

        }

}

}

module turn_body_with_hole (){
    translate([-size/2,size/2,0])
  rotate([90,0,0]){
ken=-(size*sin(slope)-front_flat*cos(slope)-(size-front_flat)/cos(30)/2);
echo (ken);
rotate([0,0,slope])
translate([0,ken,size/2]) body_with_hole();
  }
}

module all(){
for (a =[1:1:button_num])
translate([0,-size/2+wall_thickness,0])
translate([0,a*size-(a*wall_thickness),0]) turn_body_with_hole ();
}

module button_name (){
for (a = button_text){
    translate([0,size*a[0]-(a[0]*wall_thickness),0])
    translate([size/2,size/2,front_flat*0.2])
    rotate([90,0,90])
    linear_extrude(height=20)
    text(text = str(a[1]),size=front_flat*0.5,halign="center");
}
}
render(convexity = 1){
difference(){
all();
if (dotext==1) translate([-wall_thickness/2,0,0]) button_name ();
     }
}

```


[User]
Hey there, I'm looking to create a customizable lattice box in OpenSCAD, and I have a basic idea of the design that I think should be pretty flexible. I've been playing around with a few ideas and have a general design in mind already, but I'm not sure on all the best practices.

Essentially, I want to generate a box with a solid bottom, and the sides would be constructed using a lattice pattern. Here's the breakdown of the parameters I'd like to control:

*   **Overall Dimensions:**
    *   `length`: The length of the box.
    *   `width`: The width of the box.
    *   `height`: The height of the box.
*   **Wall Thickness:**
    *   `thickness`: The thickness of the box walls and bottom.
*   **Lattice Parameters:**
    *   `holegap`: The diagonal gap between each of the lattice squares. This should be measured between adjacent squares.
    *   `holesize`: The size of the square holes in the lattice pattern. If this is 20, I want 20x20 squares. These should appear as diamonds, so rotated 45 degrees.

I think it'd be great to have the lattice pattern generated dynamically based on those input dimensions, always resulting in a complete lattice pattern with no open gaps. All internal corners should have the lattice meet flush with the inner wall. I'd like the lattice squares to have equal spacing across each face of the box.

I'd like to avoid using any non-standard libraries to keep it simple and easy to read. I think everything can be done with basic OpenSCAD operations and transformations.

Could you generate an OpenSCAD file to accomplish this? I am not concerned about making this a "module". Thanks!

[Assistant]
lattice.scad:
```
length = 200;
width = 120;
height = 100;
thickness = 3;
holegap = 5;
holesize = 10;
epi = 0.01*1;
//calc space for grid
//gap needs to be translated to vertical offset
gapo = sqrt(2*pow(holegap,2));
holesizeo = sqrt(2*pow(holesize,2));
//now calculate how many we can fit on and the offset to get them central
vl = floor((length-2*thickness)/(gapo+holesizeo));
vh = floor((height-2*thickness)/(gapo+holesizeo));
vw = floor((width-2*thickness)/(gapo+holesizeo));
lo = (length - (vl*(gapo+holesizeo)))/2;
ho = (height - (vh*(gapo+holesizeo)))/2;
wo = (width - (vw*(gapo+holesizeo)))/2;

//echo (vl,vh,vw,lo,ho,wo);

difference(){
    difference()
        {
            translate(v=[0,0,0])
                cube(size=[length,width,height], center=false);
            translate(v=[thickness,thickness,thickness+epi])
                cube(size=[length-(thickness*2),width-(thickness*2),height-thickness], center=false);
        }
    union()
    {
        for (i=[1:vl],j=[1:vh])
        {
            valz = ho+((gapo+holesizeo)/2)+(((j-1)*(gapo+holesizeo)));
            valx = lo+((i-1)*(gapo+holesizeo))+(holesizeo+gapo)/2;

                translate([valx,0-epi,valz])
                rotate([90,45,180])
                {
                    cube(size=[holesize,holesize,2*(width+2*epi)],center=true);
                    //echo(i,j,valx,valz);
                }

        }
        for (i=[1:vl-1],j=[1:vh-1])
        {
            valz = ho+(holesizeo+gapo)+(((j-1)*(gapo+holesizeo)));
            valx = lo+((i)*(gapo+holesizeo));

                translate([valx,0-epi,valz])
                rotate([90,45,180])
                {
                    cube(size=[holesize,holesize,2*(width+2*epi)],center=true);
                    //echo(i,j,valx,valz);
                }

        }
        for (i=[1:vw],j=[1:vh])
        {
            valz = ho+((gapo+holesizeo)/2)+(((j-1)*(gapo+holesizeo)));
            valy = wo+((i-1)*(gapo+holesizeo));

                translate([0-epi,valy+(holesizeo+gapo)/2,valz])
                rotate([90,45,90])
                {
                    cube(size=[holesize,holesize,2*(length+2*epi)],center=true);
                    //echo(i,j,valx,valz);
                }
        }
        for (i=[1:vw-1],j=[1:vh-1])
        {
            valz = ho+(holesizeo+gapo)+(((j-1)*(gapo+holesizeo)));
            valy = wo+((i)*(gapo+holesizeo))-((holesizeo+gapo)/2);

                translate([0-epi,valy+(holesizeo+gapo)/2,valz])
                rotate([90,45,90])
                {
                    cube(size=[holesize,holesize,2*(length+2*epi)],center=true);
                    //echo(i,j,valx,valz);
                }
        }
    }
}
```


[User]
I'd like to create a customizable bed leveling test print for my 3D printer using OpenSCAD. I want to be able to adjust the printer's build volume (X, Y, and Z dimensions), nozzle diameter, layer height, the margin around the print area, and padding for a skirt if I need it. I also need to be able to pick from different test patterns.

Specifically, I'd like the following parameters to be configurable:

*   `printer_x`: The width of the printer's build plate in millimeters.
*   `printer_y`: The depth of the printer's build plate in millimeters.
*   `printer_z`: The height of the printer's build volume in millimeters.
*   `nozzle`: The diameter of the nozzle in millimeters.
*   `layerheight`: The height of each printed layer in millimeters.
*   `margin`: The margin around the print on the build plate, in millimeters.
*   `skirt_padding`: Extra padding around the print for a skirt, in millimeters.
*   `shape`: An integer to choose the pattern.

The available patterns should be:

*   0: A grid of 5x5 squares. The squares should be a fixed size, and the spacing between the squares should be calculated to fit within the printable area after margins and skirt padding.
*   1: Five squares, one in each corner and one in the center of the printable area, after accounting for margins and padding.
*   2: A series of shrinking outline squares. The outlines should start at the edges of the printable area (after margin and skirt), and they should be spaced evenly inwards.
*   3: A single flat square covering the entire printable area (after margins and skirt padding).

I don't have any libraries in mind right now, but if you think using one will help make the design easier or more robust, feel free to suggest it. I'd like this to be parametric, so I can adjust all those values easily, and please try to calculate as many values as possible automatically based on the given parameters.

[Assistant]
Customizable_Bed_Leveling_Test-v1.1.scad:
```
/*
Customizable Bed Leveling Test
Version 1.1
Written by kenwebart

Customize your own bed leveling test.

Please update your settings below.

License: Creative Commons Attribution-ShareAlike 4.0 International License
This is a human-readable summary of the full license below.

Under this license, you are free to:
Share - copy and redistribute the material in any medium or format
Adapt - remix, transform, and build upon the material for any purpose, even commercially.
The licensor cannot revoke these freedoms as long as you follow the license terms.

License terms

Attribution - You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
ShareAlike - If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
No additional restrictions - You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

Notices

You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation.
//No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.
*/

/*
Use at your own risk.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.

*/

//width in mm.
printer_x = 210;

//depth in mm.
printer_y = 210;

//height in mm.
printer_z = 205;

//diameter in mm.
nozzle = 0.4;

//height in mm.
layerheight = 0.2;

//Bild plate margin in mm.
margin = 1.5;

//in  mm. If needed, try 15.
skirt_padding = 0;

//Choose a shape
shape = 0; // [0,1,2,3]

//calculate space
x = printer_x - (margin*2) - (skirt_padding*2);
y = printer_y - (margin*2) - (skirt_padding*2);
z = printer_z - margin;

//module for lines
 module line(start, end) {
    hull() {
        translate(start) linear_extrude(height = layerheight) circle(nozzle);
        translate(end) linear_extrude(height = layerheight) circle(nozzle);
    }
}

if (shape == 0) {
		//set cube size
		a = 20;
		cubesize = [a,a,layerheight];

		//calc space between cubes
		cubesInRow = 5;
		lengthCubes = a*cubesInRow;
		xLength = x - lengthCubes;
		space = xLength/(cubesInRow-1);

	for (j=[0:cubesInRow-1]) {
		padding_y = (a*j)+(space*j);
		for (i=[0:cubesInRow-1]) {
			padding_x = (a*i)+(space*i);
				translate([padding_x,padding_y]) cube(cubesize);
			}
		}
	}

if (shape == 1) {
		//set cube size
		a = 20;
		cubesize = [a,a,layerheight];

		translate([0,0]) cube(cubesize);
		translate([x-a,0]) cube(cubesize);
		translate([0,y-a]) cube(cubesize);
		translate([x-a,y-a]) cube(cubesize);
		translate([(x-a)/2,(y-a)/2]) cube(cubesize);
	}

if (shape == 2) {

    //set space between lines in mm
    space = 10;

    //calc how many lines possible
    linesPossible = round(((x+y)/2)/(space*2+nozzle*2));
    echo(linesPossible);

        for (i=[0:linesPossible]) {
            padding = space*i;
            line([0+padding,0+padding], [x-padding,0+padding]);
            line([x-padding,0+padding], [y-padding,y-padding]);
            line([y-padding,y-padding], [0+padding,y-padding]);
            line([0+padding,y-padding], [0+padding,0+padding]);
        }
    }

if (shape == 3) {
	cube([x,y,layerheight]);
	}

```


[User]
I'm looking to create a mount for a specific PCB, the Precision Piezo universal PCB 2.75, which I'll be using as part of a Z-probe on my Kossel Mini printer. The mount needs to attach to the inside of a 2020 aluminum extrusion and hold the PCB at a customizable tilt angle. I need a parametric design where I can easily adjust the tilt angle as well as other key dimensions, should I need to.

Here's a breakdown of the key features:

*   **PCB Dimensions:** The PCB is 41mm long, 13mm wide and 2mm thick.
*   **Tilt Angle:** This is a key parameter I want to be able to control. The default should be 45 degrees but I need to be able to adjust it in the code.
*   **Mounting to 2020 Extrusion:** The mount should have a way to attach to the inside of a standard 2020 aluminum extrusion using a T-nut and a single M3 screw. I’d like a way to adjust the height of this mount point with a parameter.
*   **PCB Mounting:** The PCB should slide into the mount. There needs to be a cutout to hold the PCB. The PCB has two mounting holes, I want the mount to have corresponding clearance holes for M2.5 screws. The centers of these holes are on the centerline of the pcb, and they are 3.1mm apart with the first hole 1.6mm from the edge.
*   **Material Thickness:** I'm targeting 0.2mm layer height and 0.5mm extrusion width for printing.
*   **Clearance:** Make sure there's enough clearance around the screw heads (both PCB and mount screw) and also for the PCB components.
*   **Visibility:** The design should allow visibility of the LEDs on the PCB.
*   **Parameters:** I need the mount to be fully parametric.

I'm okay with using built-in OpenSCAD primitives, but if there are any useful libraries for this, please include them! I'd be happy to see a well-organized design that I can easily modify later. It'd be useful if there were comments explaining the different parts. Thanks!

[Assistant]
precisionpiezo-2020-mount.scad:
```
// The angle to tilt pcb
tilt_angle = 45;

/* [Hidden] */
layer_height=.2; extrusion_width=.5;
epsilon=.01;

module ppmount(
 size_pcb = [41,13,2],
 h_standoff = 7,
 offset_hole = 1.6+3.1/2,
 d_screwhole = 2.7,
 h_over = 4-2,
 s = 2.5,
 d_mountscrewhole=3.1,
 w_ext = 20,
 w_slot = 6.5,
 depth_slot = 6.5,
 l_mountscrew = 8,
 d_mountscrewhead = 6,
 h_mountscrewhead = 3,
 depth_slide = 1,
 w_tnut = 10,
 a_tilt = 45,
) {
 fnd=PI*2;
 s_screw = 2*extrusion_width;

 d2 = d_screwhole+2*s_screw;
 d1 = d2+2*h_standoff;
 h_mount = l_mountscrew-depth_slot/2;

 difference() {
  union() {
   linear_extrude(height=size_pcb.x,convexity=16)
   difference() {
    union() {
     hull() {
      rotate([0,0,-a_tilt])
      square(size=[h_over+size_pcb.z+h_standoff+s,s+size_pcb.y+s]);
      mirror([0,1]) square([h_mount,w_ext]);

     }//hull
     translate([0,-w_ext/2])
     circle(d=w_slot,$fn=w_slot*fnd);
    }//union
    rotate([0,0,-a_tilt]) {
     translate([-1,s+depth_slide])
     square(size=[1+h_over+size_pcb.z+h_standoff,size_pcb.y-2*depth_slide]);
     hull() translate([h_over+size_pcb.z/2,s+size_pcb.y/2]) {
      square(size=[size_pcb.z,size_pcb.y],center=true);
      square(size=[size_pcb.z+2*depth_slide,size_pcb.y-2*depth_slide],center=true);
     }
    }//rotate
   }//difference
   rotate([0,0,-a_tilt])
   intersection() {
    for(z=[offset_hole,offset_hole+d1])
    translate([h_over+size_pcb.z+h_standoff+epsilon,s+size_pcb.y/2,size_pcb.x-z])
    rotate([0,-90,0])
    cylinder(d1=d1,d2=d2,h=h_standoff+epsilon,$fn=d1*fnd);
    translate([0,s,0])
    cube(size=[h_over+size_pcb.z+h_standoff+1,size_pcb.y,size_pcb.x]);
   }//intersection
  }//union
  // 2020 mount
  translate([0,-w_ext/2,size_pcb.x/2]) rotate([0,90,0]) {
   translate([0,0,h_mount])
   cylinder(d=d_mountscrewhead,h=h_over+size_pcb.z+h_standoff+s+1,$fn=d_mountscrewhead*fnd);
   translate([0,0,-1])
   cylinder(d=d_mountscrewhole,h=h_over+size_pcb.z+h_standoff+s+2,$fn=d_mountscrewhole*fnd);
  }
  // T-nut cutout
  hull()
  for(sz=[-1,1]) translate([-epsilon,0,size_pcb.x/2+sz*w_tnut/2])
  rotate([0,-135,0])
  translate([0,-w_slot/2-1-w_ext/2,0])
  cube(size=[w_slot*sqrt(2)/2+2,w_slot+2,w_slot*sqrt(2)/2+2]);
  // pcb mount
  rotate([0,0,-a_tilt])
  translate([0,s+size_pcb.y/2,size_pcb.x-offset_hole]) rotate([0,90,0])
  cylinder(d=d_screwhole,h=h_over+size_pcb.z+h_standoff+s+1,$fn=d_screwhole*fnd);
 }//difference

 * difference() {
  union() {
   linear_extrude(height=size_pcb.x,convexity=16) {
    polygon(points=[
     [0,0],[0,s+depth_slide],
     // side
     [h_over-depth_slide,s+depth_slide],[h_over,s],
     [h_over+size_pcb.z,s], [h_over+size_pcb.z+depth_slide,s+depth_slide],
     [h_over+size_pcb.z+h_standoff,s+depth_slide],
     // bottom
     [h_over+size_pcb.z+h_standoff,s+size_pcb.y-depth_slide],
     // side
     [h_over+size_pcb.z+depth_slide,s+size_pcb.y-depth_slide],
     [h_over+size_pcb.z,s+size_pcb.y],[h_over,s+size_pcb.y],
     [h_over-depth_slide,s+size_pcb.y-depth_slide],
     [0,s+size_pcb.y-depth_slide],
     // outside
     [0,s+size_pcb.y+s],[h_over+size_pcb.z+h_standoff+s,s+size_pcb.y+s],
     [h_over+size_pcb.z+h_standoff+s,0],
     // 2020 mount part
     [h_mount,-w_ext],[0,-w_ext]
    ],convexity=16);
    translate([0,-w_ext/2])
    circle(d=w_slot,$fn=w_slot*fnd);
   }//linear_extrude
   intersection() {
    for(z=[offset_hole,offset_hole+d1])
    translate([h_over+size_pcb.z+h_standoff+epsilon,s+size_pcb.y/2,z])
    rotate([0,-90,0])
    cylinder(d1=d1,d2=d2,h=h_standoff+epsilon,$fn=d1*fnd);
    translate([0,s,0])
    cube(size=[h_over+size_pcb.z+h_standoff+1,size_pcb.y,size_pcb.x]);
   }//intersection
  }//union
  // 2020 mount
  translate([0,-w_ext/2,size_pcb.x/2]) rotate([0,90,0]) {
   translate([0,0,h_mount])
   cylinder(d=d_mountscrewhead,h=h_over+size_pcb.z+h_standoff+s+1,$fn=d_mountscrewhead*fnd);
   translate([0,0,-1])
   cylinder(d=d_mountscrewhole,h=h_over+size_pcb.z+h_standoff+s+2,$fn=d_mountscrewhole*fnd);
  }
  // pcb mount
  translate([0,s+size_pcb.y/2,offset_hole]) rotate([0,90,0])
  cylinder(d=d_screwhole,h=h_over+size_pcb.z+h_standoff+s+1,$fn=d_screwhole*fnd);
  // T-nut cutout
  hull()
  for(sz=[-1,1]) translate([-epsilon,0,size_pcb.x/2+sz*w_tnut/2])
  rotate([0,-135,0])
  translate([0,-w_slot/2-1-w_ext/2,0])
  cube(size=[w_slot*sqrt(2)/2+2,w_slot+2,w_slot*sqrt(2)/2+2]);
 }//difference
}

ppmount(a_tilt = tilt_angle);

```