[User]
Hey, I'm looking to get a parametric OpenSCAD design for an ice auger adapter, basically a way to connect a power drill to an ice auger. I've got a decent idea of the dimensions and how it should all fit together, so hopefully it won't be too hard. I want to be able to adjust all these parameters so I can tweak it for different augers and drills.

Here's what I'm thinking:

The adapter has three main parts: a center section that connects to the drill, a top screw-on cap that tightens the drill chuck around the center section, and a bottom cup that fits over the auger shaft.

**Center Section:**

*   It has three cylindrical sections that step up in diameter going from the bottom to the top. Let's call them section a, b, and c.
*   **a section:** Length `aLngth`, diameter `aDia`.
*   **b section:** Length `bLngth`, diameter `bDia`.
*   **c section:** Length `cLngth`, diameter `cDia`.
*   There will be a smooth transition between these sections
*   At the top, there is a hexagonal stud section (`ChuckStudTriCircleLngth`) that gets inserted into the drill chuck. This should be a triangular shape with 3 points.
*   There should be a bolt hole (diameter `boltHoleDia`, height `boltHoleHght`) going through the side for securing to the auger shaft.

**Top Screw Cap:**

*   This screws onto the top of the bottom cup and will be used to clamp the drill chuck onto the center part.
*   It has a hex nut section at the top with diameter `HexNutDia` and height `HexNutHght`.
*   Below the hex nut, there's a threaded section with length `ThreadLngth`, and diameter `ThreadDia`.
*  The inside of this will have a clearance hole that will be the size of the drill chuck diameter and a bit larger (`ChuckDia`).
*  There is also a small taper at the end of the clearance hole (`TopTaper`) which should go to `ChuckDia - TopTaper`
*   Above the taper there should be a little bit of clearance (`TopCLR`) before the taper begins.

**Bottom Cup:**

*   This cup has an internal cavity that the auger shaft sits inside.
*   There is a clearance between the cup and the shaft, and a little extra length on the shaft support at the bottom (`ShaftExtension`).
*   The outside diameter of the auger shaft is `ShaftOutDia`.
*  The cup walls have a thickness of `ShaftWallThk`.
*   There should be a bolt hole (diameter `boltHoleDia`, height `boltHoleHght`) for securing to the auger shaft, same as the one on the center part.
*   The bottom cup will have a long threaded section, length `dLngth`, at the top with diameter `ThreadDia`, and a thread wall thickness of `ThreadWallThk`.
*   A transition should be created between the thread section and the shaft support section using a taper controlled by `TapperAmt`.
*   There should be a smooth transition from the bottom cup to the a, b and c sections.

**Other important things:**

*   I need to be able to adjust the gap between the threads and the center part (call it `XYgap`).
*   I also need to be able to adjust the detail levels of the circles and threads with `adapter_detail` and `thread_detail` respectively.
*   I'd like the threads to be created parametrically, using a library if necessary.

I think that's everything. Let me know if anything is unclear, or if you need more info. Thanks!

[Assistant]
parameteric_auger_adapter_chuck_cup_v1.scad:
```
// Parameteric Ice Auger Drill Adapter v1.0
// http://www.thingiverse.com/thing:1299029
//
// by infinigrove Squirrel Master 2016 (http://www.thingiverse.com/infinigrove)
//

view_part = "all"; //[all,top_screw,bottom_cup,adapter_center]

// Bottom section
aLngth = 25;
aDia = 18;

// Next section up
bLngth = 12;
bDia = 23;

// Third section going up from bottom
cLngth = 6;
cDia = 29;

// bolt connector on auger diameter
boltHoleDia = 8;

// bolt connector on auger height
boltHoleHght = 12;

/* [adapter_center] */

// This gets insered into the drill chuck
ChuckStudTriCircleLngth = 24; //[10:48]

/* [top_screw] */

TopCLR = 2.2;
TopDia = 27;
TopTaper = 1;
HexNutHght = 9;
HexNutDia = 85;
ThreadLngth = 32;

// inside diameter of screw - slightly larger than diameter of chuck
ChuckDia = 41.5;

/* [bottom_cup] */

// Length of threads
dLngth = 35;

// The outside diameter of the auger shaft
ShaftOutDia = 29.4;

ShaftWallThk = 8; //[3:0.5:30]

// Extra length on shaft for support
ShaftExtension = 5;  //[0:0.5:50]

ThreadDia = 60;

ThreadWallThk = 7;//[3:0.5:30]

// Amount of tapper between top and bottom section
TapperAmt = 1.6;  //[1:0.1:2]

/* [detail setting and gap adjustment] */

// Distance between threaded parts and center part
XYgap = .5; //[0:0.1:1]

adapter_detail = 40; //[40:360]

thread_detail = 1; //[1:8]

/* [Hidden] */

// Hidden Vars bellow here
//

PI=3.141592;
OutShaftOutDia = ShaftOutDia+(2*ShaftWallThk);
OutThreadDia = ThreadDia+(2*ThreadWallThk);
OutTaper = (OutThreadDia - OutShaftOutDia)/TapperAmt;

//screw thread modules library from
// Poor man's openscad screw library
// polyScrewThread_r1.scad    by aubenc @ Thingiverse
// http://www.thingiverse.com/thing:8796
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 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)
{
  if(ir >= 0.2)
  {
    for(i=[0:ttn-1])
    {
        for(j=[0:sn-1])
			assign( pt = [	[0,                  0,                  i*st-st            ],
                        [ir*cos(j*lfxy),     ir*sin(j*lfxy),     i*st+j*zt-st       ],
                        [ir*cos((j+1)*lfxy), ir*sin((j+1)*lfxy), i*st+(j+1)*zt-st   ],
								[0,0,i*st],
                        [or*cos(j*lfxy),     or*sin(j*lfxy),     i*st+j*zt-st/2     ],
                        [or*cos((j+1)*lfxy), or*sin((j+1)*lfxy), i*st+(j+1)*zt-st/2 ],
                        [ir*cos(j*lfxy),     ir*sin(j*lfxy),     i*st+j*zt          ],
                        [ir*cos((j+1)*lfxy), ir*sin((j+1)*lfxy), i*st+(j+1)*zt      ],
                        [0,                  0,                  i*st+st            ]	])
        {
            polyhedron(points=pt,
              		  faces=[	[1,0,3],[1,3,6],[6,3,8],[1,6,4],
											[0,1,2],[1,4,2],[2,4,5],[5,4,6],[5,6,7],[7,6,8],
											[7,8,3],[0,2,3],[3,2,7],[7,2,5]	]);
        }
    }
  }
  else
  {
    echo("Step Degrees too agresive, the thread will not be made!!");
    echo("Try to increase de value for the degrees and/or...");
    echo(" decrease the pitch value and/or...");
    echo(" increase the outer diameter value.");
  }
}

module Auger_Adapter_center(){
    difference(){
    union(){
        cylinder(d=aDia,h=aLngth,$fn=adapter_detail); // a section
        translate([0,0,aLngth-.6]) cylinder(d1=aDia,d2=bDia,h=.6,$fn=6);
        translate([0,0,aLngth]) cylinder(d=bDia,h=bLngth,$fn=6); // b section
        translate([0,0,(aLngth+bLngth-.6)]) cylinder(d1=bDia,d2=cDia,h=.6,$fn=6);
        translate([0,0,(aLngth+bLngth)]) cylinder(d=cDia,h=cLngth,$fn=6); // c section

        intersection() {
        translate([0,0,(aLngth+bLngth+cLngth)]) cylinder(d=12,h=ChuckStudTriCircleLngth,$fn=adapter_detail);

        polyhedron(
      points=[ [5,-8,(aLngth+bLngth+cLngth)],[5,8,(aLngth+bLngth+cLngth)],[-10,0,(aLngth+bLngth+cLngth)], // the three points at base
               [5,-8,(aLngth+bLngth+cLngth+ChuckStudTriCircleLngth)],[5,8,(aLngth+bLngth+cLngth+ChuckStudTriCircleLngth)],[-10,0,(aLngth+bLngth+cLngth+ChuckStudTriCircleLngth)] ],   // the three points top

        faces=[ [0,1,2],[4,3,5],  //top and bottom face
                [1,0,3],[3,4,1],  //side
                [2,1,4],[4,5,2],  //side
                [0,2,3],[5,3,2],  //side
        ]
     );
        }
    }

        rotate([0,90,0]) translate([-(boltHoleHght),0,0]) cylinder(d=boltHoleDia,h=18,center=true,$fn=adapter_detail); //bolt hole

    }
}

module Auger_Adapter_top_screw(){
    difference(){
    union(){
        cylinder(d=HexNutDia,h=HexNutHght,$fn=6); // hex nut
        translate([0,0,HexNutHght]) screw_thread(ThreadDia-XYgap,4,55,ThreadLngth,PI/thread_detail,2);

    }

    cylinder(d=TopDia,h=TopCLR,$fn=adapter_detail);  //little hole

    translate([0,0,TopCLR]) cylinder(d1=ChuckDia-TopTaper,d2=ChuckDia,h=TopTaper,$fn=adapter_detail);  // taper

    translate([0,0,TopCLR+TopTaper]) cylinder(d=ChuckDia,h=ThreadLngth+HexNutHght,$fn=adapter_detail);  // big hole

    translate([0,-(HexNutDia/2),0]) cube([.2,HexNutDia,ThreadLngth+HexNutHght]);  //slice part in half

    }
}

module Auger_Adapter_bottom_cup(){
    difference(){
    union(){
        translate([0,0,aLngth+bLngth+ShaftExtension]) cylinder(d=OutThreadDia,h=cLngth+dLngth,$fn=adapter_detail); // top section chuck cup
        translate([0,0,aLngth+bLngth+ShaftExtension-OutTaper]) cylinder(d1=OutShaftOutDia,d2=OutThreadDia,h=OutTaper,$fn=adapter_detail); // taper
        cylinder(d=OutShaftOutDia,h=aLngth+bLngth+ShaftExtension,$fn=adapter_detail); // bottom shaft support

        }

    translate([0,0,aLngth+bLngth+cLngth+ShaftExtension]) screw_thread(ThreadDia,4,55,dLngth+5,PI/thread_detail,0); // threads on top
    cylinder(d=ShaftOutDia,h=aLngth+ShaftExtension,$fn=adapter_detail); // outside dia of auger shaft - bottom hole
    rotate([0,90,0]) translate([-(boltHoleHght+ShaftExtension),0,0]) cylinder(d=boltHoleDia,h=OutShaftOutDia+2,center=true,$fn=adapter_detail); // bolt hole for shaft
    translate([0,0,aLngth+ShaftExtension]) cylinder(d1=ShaftOutDia,d2=bDia+XYgap,h=4,$fn=adapter_detail); // taper into bSection
    translate([0,0,aLngth+ShaftExtension]) cylinder(d=bDia+XYgap,h=bLngth,$fn=6); // bSection
    translate([0,0,(aLngth+bLngth+ShaftExtension-1)]) cylinder(d1=bDia+XYgap,d2=cDia+XYgap,h=1,$fn=6); // taper into cSection
    translate([0,0,(aLngth+bLngth+ShaftExtension)]) cylinder(d=cDia+XYgap,h=cLngth,$fn=6); // cSection

    //translate([0,0,aLngth+bLngth+cLngth]) cylinder(d=ThreadDia,h=dLngth,$fn=100);

    }
}

 if (view_part == "all")
{
translate([0,cDia,0]) Auger_Adapter_center();
translate([0,-ThreadDia,0]) Auger_Adapter_top_screw();
translate([-OutThreadDia,0,0]) Auger_Adapter_bottom_cup();
}

 if (view_part == "top_screw") Auger_Adapter_top_screw();

 if (view_part == "bottom_cup") Auger_Adapter_bottom_cup();

 if (view_part == "adapter_center") Auger_Adapter_center();

```


[User]
I need to design a collimating slit for some optics experiments, and I'd like to be able to customize it easily. I was thinking something similar to the existing design, but with a few changes.

The basic idea is still a rectangular plate with a slit in the middle. The existing design has parameters for plate width, height, and thickness, and for the slit height. I need all of that, but I'd also like to control the following:

*   **Slit position:** Instead of being centered vertically, I'd like to control the vertical position of the slit (relative to the bottom of the plate).
*   **Number of slits:** I'd like to be able to specify a number of slits, with the option to space them evenly. If there are multiple slits, the vertical position parameter should control the position of the *first* slit. I'd like to specify the spacing between each of the slits as well.
*   **Slit length:** I'd like to control the length of the slit, instead of it always being the same length as the width of the plate, and I'd like to be able to specify the slit offset from the edges of the plate.
*   **Rounded edges:** It would be great if I could add rounded edges to the plate, using a specified radius.

I'd like to use the BOSL2 library for any math or other utilities. Please generate the necessary .scad files with all the parameters I've specified.

[Assistant]
customizable_collimating_slit.scad:
```
//design by Sean Murphy

//This code generates a simple collimating slit of customisable size.

/* [Global] */

//width of plate
width=20;

//height of plate
height=10;

//thickness of plate
depth=0.1;

//slit height
slit_height=0.025;

//set openSCAD resolution
$fa=1;
$fs=1;

difference() {
cube([width,height,depth], 0);
translate([1,height/2, 0])
cube([width-2,slit_height,depth], 0);
}
```


[User]
Okay, I'm looking to create a parametric design for a paint bottle tray system that can be connected together. I'd like to be able to customize the number of bottles it holds, the angle of the front face, and have options for a lid with a hinge, and a clip to keep the lid shut.

Here's a more detailed breakdown of what I need, and some inspiration from a SCAD file I've been playing with:

**Core Container:**

*   **Parametric Rows and Columns:**  I need to be able to set the number of rows and columns for the bottle holders.
*   **Bottle Holder Dimensions:** I need to specify the diameter of the bottles, the height of the bottle, and the depth of the hole the bottles sit in.
*   **Sloped Front Face:** The front of the tray should be angled back. I need to control the angle of that slope.
*  **Container Edge Thickness:** There should be a parameter to control the thickness of the walls and edge of the tray.
*   **Bottle Spacing:** Need to have a parameter to control the spacing between the bottle holes. There should also be a slight offset between the holes in rows or columns.
*   **Base Support:** The bottom of the tray should have a support structure, so it's not just a thin shell. The thickness of this support should be configurable.
*  **Edge Connectors:** I'd like to have the option to add interlocking connectors on the left and right sides of the tray, allowing multiple trays to be connected together horizontally. These should have male/female types.

**Optional Lid:**

*   **Lid:** I would like to have an option to add a lid that hinges to the back of the tray. The lid should cover all the bottle holes.
*   **Hinge:** The hinge should be incorporated in the design.
*   **Lid Thickness:** The lid should have its own thickness parameter.
*   **Lid Clip:** As an option, I'd like to be able to add a clip to the front of the tray and lid that keeps the lid closed. The clip should also be parametric.

**Output Options:**

*   I'd like a parameter that lets me select different output options:
    *   Just the container by itself.
    *   Container + lid
    *   Container + lid + clip
    *   Just the clip by itself

I think that's everything.  I'm primarily interested in something that's very configurable. I think that using libraries would be great too if it makes the code cleaner and easier to work with. I'd expect to use this with OpenSCAD. I'm not picky about which libraries are used, if any. If there's a common or useful one, it's fine. I don't think I need anything fancy, just a way to build this type of customizable tray system. I'd like to have it be its own self-contained file for this tray and be well organized.

[Assistant]
paintTray.scad:
```
/* [Global] */

/*[Container Size]*/

//Number of column
column = 3;  //[1:20]
//Number of row
row = 5; //[1:20]
//Degree of the slope
deg = 20;  //[0:25]
//Rendering of 3D model
object = 0;  //[0:Container,1:Container+Cover, 2:Container+Cover+Clip, 3:Clip ]
//Thickness of the plastic cover
coverThick = 1.2;

/*[Bottle Size]*/

//Diameter of each bottle
diameter = 25;
//Height of each bottle
bottleH = 42;
//Deepness of each bottle hole
holeH = 21.5;

/*[Advanced]*/
//Thickness of the container edge
space = 1.5;
//Duplicating area of each hole
offset = 1;
//Spacing of each hole against diameter of bottle
holespace = 1.7;
//Support thickness at the bottom
minusThick = 2.5;

/*[End Connectors]*/
//slot on left side
femaleConnector = 1;
//post on right side
maleConnector = 1;

/* [Hidden] */

holeDiameter = diameter + holespace ;

x = sqrt(space*space + holeH*holeH) * cos(90-deg-atan(space/holeH));
y = round((holeDiameter*column - offset*(column-1) +space/3) * cos(deg));

totalW = holeDiameter*row-offset*(row-1) + space*2 ;
totalH = ((holeDiameter-offset)*column+18)*sin(deg)+holeH;
totalD = x + y;

module Body(){

difference()
{

totalHW = (holeDiameter+3) * row ;

translate([-x,-totalW,-space,])

 if(maleConnector)
{
    union()
    {
        cube([totalD,totalW,totalH]);
        translate([15,-space-0.5,0])
        cube([2,space*2+0.5,5]);
        translate([14,-space*2-0.5,0])
        cube([4,space,5]);
        if(column > 1)
        {
        translate([totalD-17,-space-0.5,0])
        cube([2,space*2+0.5,5]);
        translate([totalD-18,-space*2-0.5,0])
        cube([4,space,5]);
        }
    }
}else{
    cube([totalD,totalW,totalH]);
}

if(femaleConnector)
{
    /*need to place 2 cubes in the left end*/
    translate([15-x,-space,-space-.5])
    cube([2,space+0.5,6.5]);
    translate([14-x,-space*2,-space-.5])
    cube([4.5,space+.5,6.5]);
    if(column > 1)
    {
        translate([totalD-17-x,-space,-space-.5])
        cube([2,space+0.5,6.5]);
        translate([totalD-18-x,-space*2,-space-.5])
        cube([4.5,space+.5,6.5]);
    }
}

rotate([0,-deg,0])
translate([-x*2,-(holeDiameter/2-2)*3*row,holeH-0.1])
cube([holeDiameter*column*2,(holeDiameter+4)*1.5*row, holeDiameter*column*cos(deg)]);

translate([0 ,-(holeDiameter)/2 - space,0])
rotate([0,-deg,0])

    translate([holeDiameter/2*cos(deg)+1,0,0])
    {
for ( i = [0 : row-1 ] ){
translate([0,-(holeDiameter-offset)*i,0,])
for ( i = [0 : column-1 ] ){
translate([(holeDiameter-offset)*i,0,0,])
cylinder(h = holeH*2, r=holeDiameter/2, $fn=60);
 }
 }
 }

translate([minusThick,minusThick,0])
difference()
{
translate([-x,-totalW,-space-0.1,])
cube([totalD-minusThick*2,totalW-minusThick*2,totalH]);

rotate([0,-deg,0])
translate([-x*2,-(holeDiameter/2-2)*3*row,-space/3])
cube([holeDiameter*column*2,(holeDiameter+4)*1.5*row, holeDiameter*column*cos(deg)]);

translate([-x,-totalW,-space-0.1,]){
for ( i = [1 : row+1 ] ){
translate([0.1,i*(totalW-minusThick*2)/(row+2)-minusThick/2/2,0])
cube([totalD-minusThick*2,minusThick/2,totalH]);
}
}
}

}

}

module cover(){

    translate([-x+totalD,-totalW,holeH+sin(deg)*(holeDiameter*column-offset*(column-1)+space*2.2)-0.2])
    mirror([1,0,0])
rotate([0,deg,0]){
cube([5,totalW,bottleH-holeH]);

////hinge
translate([0,0,bottleH-holeH]){
difference(){
cube([5,2,5]);
rotate([90,0,0])
translate([2.5,2.5,-2.5])
cylinder(h = 3, r=2.7/2, $fn=30);
}
translate([0,totalW-2,0])
difference(){
cube([5,2,5]);
rotate([90,0,0])
translate([2.5,2.5,-2.5])
cylinder(h = 3, r=2.7/2, $fn=30);
}
}

}

}

module coverClip(deg){
if (object == 2 || object ==3) {
translate([-x+totalD,-totalW,holeH+sin(deg)*(holeDiameter*column-offset*(column-1)+space*2.2)-0.2]) mirror([1,0,0])

    rotate([0,deg,0])
    {

translate([0,0,bottleH-holeH]){

translate([1.5,2+2/2,1.5])
difference(){
    translate([0,0,-(3.5-2)/2])
    cube([11,totalW-2*2-1,3.5]);
    translate([5,-1,1-coverThick/2])
    cube([9,(totalW-2*2)+2,coverThick]);
}

rotate([90,0,0])
translate([2.25+1,2.5,-2.5]){
    translate([0,0,-0.5])
    cylinder(h = 1.3, r=1.5/2, $fn=6);
    translate([0,0,0.5-(totalW-2*2)])
    mirror([0,0,1])
    cylinder(h = 1, r=1.4/2, $fn=6);
}
}
}
}

}

///////main///////

rotate([0,0,90]) {
if (object ==0 || object ==1 || object ==2)
Body();

if (object == 1 || object ==2)
cover();

if (object ==3)
coverClip(0);
if (object ==2)
coverClip(deg);

}

```


[User]
I'm looking to create some customizable magnetic bases for tabletop gaming tiles, and I want to make sure they are compatible with the OpenForge system. I need a design that lets me specify the base tile size (x and y dimensions in 25mm increments), and allows for optional edge tile supports on any or all of the four sides. These edge supports should be the standard OpenForge size of 12.5mm, as I understand it. The design should also include the ability to add holes for magnets, sized appropriately for 5mm diameter "buckyball" magnets, with the ability to disable the magnet holes completely. I also need options for wire holes running through the base for things like lighting; specifically, a center wire hole and also loop holes designed for paperclips.

So, to summarize, I need:

*   **Base tile size parameters:** `x` and `y`, specifying the number of 25mm squares in each dimension.
*   **Edge tile support parameters:** `left_edge`, `right_edge`, `front_edge`, and `back_edge`, which are boolean toggles (true/false). The edge support should add 12.5mm to that side of the base.
*   **Magnet hole parameter:** `magnet_hole`, which allows me to set the size of the magnet hole (5.4mm for 5mm buckyballs, 0 to eliminate holes entirely)
*  **Wire hole parameters:** `center_wire_hole` (0 to disable, 0.65 for 20 gauge wire, 0.7 for 18 gauge), and `paperclip_wire_hole` (0 to disable, 0.7 for 18 gauge).
*  **Magnet ejection holes:** Small holes that will allow me to push the magnets out from the back side, this should only be present if magnet_hole > 0

I’d like the design to be parametric and generated as an OpenSCAD file. If it's easier, you can split it into several files, but try to keep them related. It should be easily customizable using those variables. Let me know if you need more details.

[Assistant]
solid_magnetic.scad:
```
/* [Base Tile Size] */
x = 2; //[1,2,3,4,5,6]
y = 2; //[1,2,3,4,5,6]

/* [Edge Tile Support] */
// Size of edge tile addition, 9.2 is standard for openforge
edge = 12.5;
left_edge = "false"; // [false,true]
right_edge = "false"; // [false,true]
front_edge = "false"; // [false,true]
back_edge = "false"; // [false,true]

/* [Magnets] */
// Size of hole for magnet.  5.4 works well for 5mm buckyball style magnets.  0 to eliminate.
magnet_hole = 5.4;

/* [Wire Holes] */
// Size of hole for center wire hole.
center_wire_hole = 0; // 0:Off,0.65:20 Gauge,0.7:18 Gauge
paperclip_wire_hole = .7; // 0:Off,0.65:20 Gauge,0.7:18 Gauge

module wire_holes(x,y,center_wire_hole=0,paperclip_wire_hole=0.7,edge=12.5) {
    // center: 1  mm wire  18 gauge
    // crossed: .8  mm wire  20 gauge 7.4 small  9.3 large  20 gauge
    eoffset = -1 - edge;

    xlength = 2 + 2 * edge + 25 * x;
    if (x > 1) {
        for ( i = [2 : x] ) {
            ipos = i * 25 - 25;
            translate([ipos,eoffset,6/2]) rotate([-90,0,0]) cylinder(xlength,center_wire_hole,center_wire_hole,$fn=50);
            // Large Loop
            translate([ipos+4.5,eoffset,6/2+1.5]) rotate([-90,0,0]) cylinder(xlength,paperclip_wire_hole,paperclip_wire_hole,$fn=50);
            translate([ipos-4.5,eoffset,6/2+1.5]) rotate([-90,0,0]) cylinder(xlength,paperclip_wire_hole,paperclip_wire_hole,$fn=50);
            translate([ipos+4.5,eoffset,6/2-1]) rotate([-90,0,0]) cylinder(xlength,paperclip_wire_hole,paperclip_wire_hole,$fn=50);
            translate([ipos-4.5,eoffset,6/2-1]) rotate([-90,0,0]) cylinder(xlength,paperclip_wire_hole,paperclip_wire_hole,$fn=50);
            // Small Loop
            translate([ipos+2.4,eoffset,6/2+1.5]) rotate([-90,0,0]) cylinder(xlength,paperclip_wire_hole,paperclip_wire_hole,$fn=50);
            translate([ipos-2.4,eoffset,6/2+1.5]) rotate([-90,0,0]) cylinder(xlength,paperclip_wire_hole,paperclip_wire_hole,$fn=50);
        }
    }

    ylength = 2 + 2 * edge + 25 * y;
    if (y > 1) {
        for ( i = [2 : y] ) {
            ipos = i*25-25;
            translate([eoffset,i*25-25,6/2]) rotate([0,90,0]) cylinder(ylength,center_wire_hole,center_wire_hole,$fn=50);
            // Large Loop
            translate([eoffset,ipos+4.5,6/2+1.5]) rotate([0,90,0]) cylinder(ylength,paperclip_wire_hole,paperclip_wire_hole,$fn=50);
            translate([eoffset,ipos-4.5,6/2+1.5]) rotate([0,90,0]) cylinder(ylength,paperclip_wire_hole,paperclip_wire_hole,$fn=50);
            translate([eoffset,ipos+4.5,6/2-1]) rotate([0,90,0]) cylinder(ylength,paperclip_wire_hole,paperclip_wire_hole,$fn=50);
            translate([eoffset,ipos-4.5,6/2-1]) rotate([0,90,0]) cylinder(ylength,paperclip_wire_hole,paperclip_wire_hole,$fn=50);
            // Small Loop
            translate([eoffset,ipos+2.4,6/2+1.5]) rotate([0,90,0]) cylinder(ylength,paperclip_wire_hole,paperclip_wire_hole,$fn=50);
            translate([eoffset,ipos-2.4,6/2+1.5]) rotate([0,90,0]) cylinder(ylength,paperclip_wire_hole,paperclip_wire_hole,$fn=50);
        }
    }
}

module magnet_ejection_holes(x,y,magnet_hole,
        left_edge="false",right_edge="false",front_edge="false",back_edge="false",edge=12.5) {
    if (magnet_hole > 0) {
        l = left_edge == "true"?edge:0;
        r = right_edge == "true"?edge:0;
        f = front_edge == "true"?edge:0;
        b = back_edge == "true"?edge:0;
        for ( i = [1 : x] ) {
            translate([i*25-12.5,3.6-f,-1]) cylinder(10,.9,.9,$fn=50);
            translate([i*25-12.5,y*25-3.6+b,-1]) cylinder(10,.9,.9,$fn=50);
        }
        for ( i = [1 : y] ) {
            translate([3.6-l,i*25-12.5,-1]) cylinder(10,.9,.9,$fn=50);
            translate([x*25-3.6+r,i*25-12.5,-1]) cylinder(10,.9,.9,$fn=50);
        }
    }
}

module magnet_holder(magnet_hole=5.4) {
    // 5mm buckyballs
    if(magnet_hole > 0) {
        translate([0,0,1]) cylinder(8,magnet_hole/2,magnet_hole/2, $fn=100);
    }
}

module magnet_base(x,y,
        left_edge="false",right_edge="false",front_edge="false",back_edge="false",edge=12.5,
        magnet_hole=5.4,center_wire_hole=0,paperclip_wire_hole=0.7) {
    l = left_edge == "true"?edge:0;
    r = right_edge == "true"?edge:0;
    f = front_edge == "true"?edge:0;
    b = back_edge == "true"?edge:0;
    difference() {
        union() {
            translate([-l,-f,0]) difference() {
                cube([25*x+l+r,25*y+f+b,6]);
                translate([7.4-l,7.4-f,-1]) cube([25*x-14.8+l+r,25*y-14.8+f+b,8]);
            }
        }

        for ( i = [1 : x] ) {
            translate([i*25-12.5,3.7-f,0]) magnet_holder(magnet_hole);
            translate([i*25-12.5,y*25-3.7+b,0]) magnet_holder(magnet_hole);
        }
        for ( i = [1 : y] ) {
            translate([3.7-l,i*25-12.5,0]) magnet_holder(magnet_hole);
            translate([x*25-3.7+r,i*25-12.5,0]) magnet_holder(magnet_hole);
        }
        magnet_ejection_holes(x,y,magnet_hole,
                left_edge=left_edge,right_edge=right_edge,front_edge=front_edge,back_edge=back_edge,edge=12.5);

        wire_holes(x,y);
    }
}

magnet_base(x,y,left_edge,right_edge,front_edge,back_edge,edge,magnet_hole,center_wire_hole,paperclip_wire_hole);

```


[User]
I need a parametric OpenSCAD file for a head jack fixation design, kinda like a mounting bracket.

The basic shape is a cylinder with a diameter `do`, and a length that's twice some parameter `l`. I'll call this main cylinder "outer cylinder". It will be centered at the origin. Inside this, there are two more cylinders to be cut out. One cylinder with diameter `d1` and length `l` is going to start at the origin and go in the positive Z direction. The other is mirror of that - cylinder with diameter `d2` and length `l` going in the negative Z direction. Think of it as creating a cavity, but the cavity has two different cylinder diameters.

On top of this cavity shape, I want a rectangular prism (a cube basically) to intersect it. This prism has dimensions `do` by `do` by `l*2`. It's centered at the origin like the outer cylinder, but offset in the Y-axis direction by `do/3`.

All dimensions - `do`, `d1`, `d2`, and `l` should be parameters I can easily adjust. I'll probably want to set `$fn` to a higher value for smoother curves (say 50 to start). The entire thing should be centered at the origin.

I'm not sure if it's relevant but I'm thinking this could be used to hold a cylindrical rod with two different diameters.

[Assistant]
HeadJackFixation.scad:
```
do = 11;

d1 = 8.75;
d2 = 7.0;
l = 10;

$fn = 50;

intersection(){
difference(){
    cylinder(d = do, h = l * 2, center=true);

    cylinder(d = d1, h = l);

    mirror([0,0,1])
        cylinder(d = d2, h = l);
}

translate([0,do/3,0])
    cube(size=[do,do,l*2], center=true);
}
```


[User]
I'd like to make a customizable colour chip for testing out different filaments. It should have multiple levels of different heights and wall thicknesses so I can see how the filament looks in different conditions.

Specifically, I'm thinking of a base with four distinct Z heights, maybe something like 1mm, 2mm, 3mm, and 4mm. Each of these levels should have a rounded edge that tapers down to the base using a minkowski sum with a cylinder.

Then I'd like to be able to add "walls" to that chip, as extrusions coming up from the base along one side of the chip. I want to specify the thickness of these walls, and would like to be able to specify two different thicknesses, using parametric values. Ideally one would be relatively thin (e.g. 1mm) and the other quite thick (e.g. 3mm).

Finally, I'd like to include a small cylindrical hole in the design, near the "walls," that I can use for holding screws or pegs.

The design should be parametric, using OpenSCAD. Can you generate a single OpenSCAD file with the parameters I described, and any others you find useful? I think that's everything... let me know if you need any more information!

[Assistant]
ColourChip.scad:
```
lowheight=1;
midheight=2;
highheight=3;
windowheight=.1;
narrowwall=.8;
thickwall=2.6;

$fn=50;
difference(){
    union(){

        minkowski(){
            cube([20,45,lowheight-.5]);
            cylinder(r=5,h=.5);
        }
        minkowski(){
            cube([20,30,midheight-.5]);
            cylinder(r=5,h=.5);
        }
        minkowski(){
            cube([20,15,highheight-.5]);
            cylinder(r=5,h=.5);
        }
    }
    union(){
        minkowski(){
            translate([thickwall,narrowwall,windowheight])cube([5,5,highheight+1]);
            cylinder(r=5,h=.5);
        }
        translate([20,0,0])cylinder(d=4,h=10,center=true);
    }
}
```


[User]
I'm looking to create a customizable pen/pencil pot using OpenSCAD. I'd like the basic shape to be a cylinder, but with a few key features that I'd like to be able to adjust.

First, the cylinder itself. I need to be able to control the overall height, the outer diameter, and the thickness of the walls. I'd like the bottom to have a separate thickness that I can control as well.

Second, I want a rounded "torus" feature at the top edge of the pot, essentially a rounded lip. The diameter of this torus should be based on the wall thickness, so it scales appropriately. The user should be able to change a multiplier that controls the torus' diameter relative to the wall thickness - so I can have a relatively small curve or a larger one.

Finally, I'd like to have the option of adding additional toruses along the side of the pot, below the main top one. I need to be able to control *how many* of these additional toruses there are. They should be evenly spaced down the side of the pot.

Ideally, all of this would be controlled by parameters, and the code should be commented so I can understand how it's constructed. I'd like to keep the file simple, so please avoid using any external libraries.

[Assistant]
pencilpot-round.scad:
```
// number of fragments
fn = 128;//[4:2:128]
//shaft diameter
d = 80;
//total height
h = 100;
//shaft thickness
t = 1.6;//[0.8:3]
//bottom thickness
tbottom = 2;
//torus diameter factor (multiplicator for shaft thickness)
xf = 2;
//count of secondary toruses
n = 0;

union(){
    difference(){
        union(){
            translate([0,0,0]) cylinder(h = h-xf*t/2, d = d, center = false, $fn = fn);
            if (n>0){
            for (a =[0:1:n]){
                translate([0,0,h-xf*t/2 - (h-xf*t)/n*a]) rotate_extrude(convexity = 10, $fn = fn) translate([(d-t)/2, 0, 0]) circle(r = xf*t/2, $fn = 16);
            }
        }
        }
            translate([0,0,tbottom]) cylinder(h = h-xf*t/2, d = d - 2*t, center = false, $fn=fn);}

 translate([0,0,h-xf*t/2]) rotate_extrude(convexity = 10, $fn = fn) translate([(d-t)/2, 0, 0]) circle(r = xf*t/2, $fn = 16);
    }
```


[User]
I'm looking to create a set of customizable angle brackets and need some help generating the OpenSCAD code.  I want to be able to control several aspects of the bracket, similar to the parameters I saw in a file I was looking at.

Specifically, I need to be able to specify:

*   The angle between the two arms (e.g., 90 degrees, 120 degrees, etc.)
*   The overall length of the bracket (the length along the z-axis, as if you laid it flat and looked down on it)
*   The length of each arm individually
*   The thickness of the bracket material (wall thickness)
*   The number of reinforcing webs between the arms, their size relative to the bracket arm lengths, and their spacing.  I'd also like to be able to control if they are actually present at all, or if the count can be set to 0
*   For each arm, I need control over:
    *   The number of mounting holes
    *   The style of the holes (plain or countersunk)
    *   The diameter of the holes
    *   The spacing of the holes, relative to the bracket arm length
    *   The position of the holes along the bracket arm length
    *  The option for slotting the holes, by specifying an elongation value for the hole. If this is 0, the hole will be circular; if non-zero, it will create a slot (which is a hole at the center, with a capped cylinder at one or both sides.)
*   I also need to be able to specify the level of filleting and rounding of the corners.

I would like to use the `minkowski` function to handle the rounding and filleting. I expect this would be done with an `outset` and `inset` module that is controlled by a rounding factor and a filleting factor.

Could you generate the OpenSCAD files for me?  I would prefer if you don't use any external libraries for this, since I want to keep it simple.

[Assistant]
bracket.scad:
```
//------------------------------------------------------------------
/*

Angle Brackets

*/
//------------------------------------------------------------------
/* [Global] */

/*[General]*/
bracket_angle = 108;
bracket_length = 80;
wall_thickness = 4;

/*[Arm1]*/
arm1_length = 40;
arm1_holes = 2;
arm1_hole_style = "plain"; // [plain,countersunk]
arm1_hole_diameter = 6.4;
arm1_hole_spacing = 0.5; // [0:0.05:1]
arm1_hole_position = 0.7; // [0:0.05:1]
arm1_hole_elongation = 4.0;

/*[Arm2]*/
arm2_length = 40;
arm2_holes = 3;
arm2_hole_style = "countersunk"; // [plain,countersunk]
arm2_hole_diameter = 4.8;
arm2_hole_spacing = 0.4; // [0:0.05:1]
arm2_hole_position = 0.7; // [0:0.05:1]
arm2_hole_elongation = 0.0;

/*[Webs]*/
number_of_webs = 3;
web_size = 0.5; // [0:0.05:1]
web_spacing = 0.1; // [0:0.05:1]

/*[Fillets]*/
fillet_factor = 2.0;
rounding_factor = 0.2; // [0:0.05:1]

/* [Hidden] */
//------------------------------------------------------------------
// Set the scaling value to compensate for print shrinkage

scale = 1/0.995; // ABS ~0.5% shrinkage
//scale = 1/0.998; // PLA ~0.2% shrinkage

function dim(x) = scale * x;

//------------------------------------------------------------------
// derived values

bracket_l = dim(bracket_length);
arm1 = dim(arm1_length);
arm2 = dim(arm2_length);
wall_t = dim(wall_thickness);
arm1_hole_r = dim(arm1_hole_diameter/2);
arm2_hole_r = dim(arm2_hole_diameter/2);

//------------------------------------------------------------------
// control the number of facets on cylinders

facet_epsilon = 0.01;
function facets(r) = 180 / acos(1 - (facet_epsilon / r));

// small tweak to avoid differencing artifacts
epsilon = 0.05;

//------------------------------------------------------------------
// rounded/filleted edges

module outset(d=1) {
  minkowski() {
    circle(r=d, $fn=facets(d));
    children(0);
  }
}

module inset(d=1) {
  render() inverse() outset(d=d) inverse() children(0);
}

module inverse() {
  difference() {
    square(1e5, center=true);
    children(0);
  }
}

module rounded(r=1) {
  outset(d=r) inset(d=r) children(0);
}

module filleted(r=1) {
  inset(d=r) render() outset(d=r) children(0);
}

//------------------------------------------------------------------

module hole(r, style) {
  if (style == "countersunk") {
    if (r > wall_t) {
      points = [
        [0,0],
        [(2 * r) - wall_t, 0],
        [2 * r, wall_t + (2 * epsilon)],
        [0, wall_t + (2 * epsilon)]
      ];
      rotate_extrude($fn=facets(r)) polygon(points = points);
    } else {
      points = [
        [0,0],
        [r, 0],
        [r, wall_t - r],
        [2 * r, wall_t + (2 * epsilon)],
        [0, wall_t + (2 * epsilon)]
      ];
      rotate_extrude($fn=facets(r)) polygon(points = points);
    }
  } else {
    // plain hole
    cylinder(h=wall_t + (2 * epsilon), r = r, $fn=facets(r));
  }
}

module hole_set(n, r, k, e, style) {
  space = bracket_l/(n - 1 + (2 * k));
  for (i = [1:n]) {
    translate([(k + i - 1) * space, 0, -epsilon]) {
      if (e != 0) {
        hull() {
          translate([0, e * r, 0]) hole(r, style);
          hole(r, style);
        }
      } else {
        hole(r, style);
      }
    }
  }
}

module holes() {
  if (arm1_holes > 0) {
    translate([arm1_hole_position * arm1,0,0]) rotate([-90,-90,0]) {
      hole_set(arm1_holes, arm1_hole_r, arm1_hole_spacing, -arm1_hole_elongation, arm1_hole_style);
    }
  }
  if (arm2_holes > 0) {
    d = arm2_hole_position * arm2;
    c = cos(bracket_angle);
    s = sin(bracket_angle);
    translate([d * c, d * s, 0]) rotate([0,-90,90+bracket_angle]) {
      hole_set(arm2_holes, arm2_hole_r, arm2_hole_spacing, arm2_hole_elongation, arm2_hole_style);
    }
  }
}

module web_profile() {
  c = cos(bracket_angle);
  s = sin(bracket_angle);
  d1 = arm1 * (1-web_size);
  d2 = arm2 * (1-web_size);
  wt = wall_t - epsilon;
  points = [
    [(c + 1) * wt/s, wt],
    [(c * arm2) + (s * wt) - (c * d2), (s * arm2) - (c * wt) - (s * d2)],
    [arm1 - d1, wt],
  ];
  polygon(points=points, convexity=2);
}

module web() {
  linear_extrude(height=wall_t, convexity=2) web_profile();
}

module webs() {
  space = (bracket_l - (number_of_webs * wall_t)) / (number_of_webs - 1 + (2 * web_spacing));
  for (i = [1:number_of_webs]) {
    translate([0, 0, (web_spacing * space) + (i - 1) * (space + wall_t)]) web();
  }
}

module bracket_profile() {
  c = cos(bracket_angle);
  s = sin(bracket_angle);
  d1 = arm1 * (1-web_size);
  d2 = arm2 * (1-web_size);
  points = [
    [arm1, wall_t],
    [arm1, 0],
    [0, 0],
    [c * arm2, s * arm2],
    [(c * arm2) + (s * wall_t), (s * arm2) - (c * wall_t)],
    [(c + 1) * wall_t/s, wall_t],
  ];
  rounded(rounding_factor * wall_t) filleted(fillet_factor * wall_t) polygon(points=points);
}

module bracket() {
  difference() {
    union() {
      linear_extrude(height=bracket_l, convexity=2) bracket_profile();
      if (number_of_webs > 0) {
        webs();
      }
    }
    holes();
  }
}

translate([-arm1/2,bracket_l / 2,0]) rotate([90,0,0]) bracket();

//------------------------------------------------------------------

```


[User]
I'd like to create a parametric design for two nested boxes, where one box fits snugly inside the other. The idea is to demonstrate how the dimensions relate and how they nest. I'll give you the mathematical relationships, and then you can generate the OpenSCAD code for me, including the function and module definitions.

Here are the relationships, where `h` is the inner box's height, and `t` is the thickness of the walls:

*   The outer box's height, `H` is `h + t`.
*   The inner box's width, `w`, is `H + 2t`.
*   The outer box's width, `W`, is `w + 2t`.
*   The inner box's length, `l`, is `W + 2t`.
*   The outer box's length, `L`, is `l + 2t`.

I'd also like a spacing parameter `s` that controls the extra space between the inner and outer boxes. The calculations above should still be based on *wall* thicknesses, but all measurements of outer boxes need to be additionally modified by `s`.
So, when calculating inner dimensions, use `thickness + spacing` as the wall width, and when calculating the dimensions for the outer box (the container box), use `thickness + spacing` as well to get correct spacing.

Here's the module structure I'm thinking about:

*   `box_without_upper(w, h, l, thickness)`: This module should create a box (without a top) of the given dimensions, with the specified wall thickness. Use `difference()` to make a hollow box using two cubes. Make sure to center it on the origin.
*   `inner_box(inner_h, thickness, spacing)`: This module should call the `box_without_upper` module with the correct inner box dimensions, using the provided inner height (`inner_h`), thickness (`thickness`) and spacing (`spacing`).
*   `outer_box(inner_h, thickness, spacing)`: This module should call `box_without_upper` with the correct dimensions for the outer box based on the same parameters. Additionally, I'd like to add a circle cutout (cylinder) in the *bottom* of the outer box, of some diameter. The depth of this cylinder should go past the bottom of the box. Use `linear_extrude` with a depth of `thickness * 2`. The circle's diameter should be `w / 6` (the inner box's width / 6), and the circle should be centered in the bottom.

Finally, at the end of the code, I want to see both boxes rendered, with the inner box positioned inside the outer box. Specifically, translate the outer box in the x direction by the inner box's width + 20 times the thickness, and then also translate the outer box in the z direction by `thickness / 2 + spacing / 2` so that it's slightly offset.

I expect that you'll define functions for the dimensions (`outer_h`, `inner_w`, `outer_w`, `inner_l`, `outer_l`) to make the code more readable, and I'm expecting a single .scad file with the complete implementation.

[Assistant]
mutual_containing_boxes.scad:
```
inner_h = 70;
thickness = 0.6;
spacing = 0.6;

function outer_h(inner_h, thickness) = inner_h + thickness;

function inner_w(inner_h, thickness) = outer_h(inner_h, thickness) + 2 * thickness;

function outer_w(inner_h, thickness) = inner_w(inner_h, thickness) + 2 * thickness;

function inner_l(inner_h, thickness) = outer_w(inner_h, thickness) + 2 * thickness;

function outer_l(inner_h, thickness) = inner_l(inner_h, thickness) + 2 * thickness;

module box_without_upper(w, h, l, thickness) {
	difference() {
	    cube([w, l, h], center = true);
	    translate([0, 0, thickness])
		    cube([w - 2 * thickness, l - 2 * thickness, h - thickness], center = true);
    }
}

module inner_box(inner_h, thickness, spacing) {
    w = inner_w(inner_h, thickness + spacing);
	h = inner_h;
	l = inner_l(inner_h, thickness + spacing);

	box_without_upper(w, h, l, thickness);
}

module outer_box(inner_h, thickness, spacing) {
    w = outer_w(inner_h, thickness + spacing);
    h = outer_h(inner_h, thickness + spacing);
    l = outer_l(inner_h, thickness + spacing);

    difference() {
        box_without_upper(w, h, l, thickness);
	    translate([0, 0, -h / 2]) linear_extrude(thickness * 2) circle(w / 6, $fn=96);
	}
}

inner_box(inner_h, thickness, spacing);
translate([inner_w(inner_h, thickness) + 20 * thickness, 0, thickness / 2 + spacing / 2])
    outer_box(inner_h, thickness, spacing);

```


[User]
Hey, I'm looking to get some OpenSCAD code generated for LED strip light mounting brackets. I've seen a bunch of designs, but I'd really like something parametric so I can adjust it easily for different sized LED strips.

The basic design I'm thinking of is a bracket with a U-shaped channel to hold the LED strip, and a couple of mounting holes. I'd like to define the internal dimensions of the channel (width and height) so that it fits the strip snugly. Then I want to define the bracket's overall length, width, and wall thickness. The mounting holes should be placed symmetrically, and I'd like to specify their diameter. I'd also want to control a scaling factor to account for printing shrinkage, and potentially have a way to specify a facet epsilon value to control the number of facets used on curved surfaces, although that's less important. Finally, I'd like the edges to have a slight radius. I'm not exactly sure how to go about all of that.

Could you generate OpenSCAD files for me that would accomplish this? I think it would be best to handle rounding via the `minkowski()` function with `circle()` objects for creating fillets.

[Assistant]
led_bracket.scad:
```
//------------------------------------------------------------------
/*

LED Rope Light Bracket

*/
//------------------------------------------------------------------
/* [Global] */

/*[General]*/
internal_length = 13.6;
internal_height = 7;
bracket_width = 8;
wall_thickness = 3;
bracket_length = 36;
hole_diameter = 2;

/* [Hidden] */
//------------------------------------------------------------------
// Set the scaling value to compensate for print shrinkage

scale = 1/0.995; // ABS ~0.5% shrinkage
//scale = 1/0.998; // PLA ~0.2% shrinkage

function dim(x) = scale * x;

//------------------------------------------------------------------
// control the number of facets on cylinders

facet_epsilon = 0.01;
function facets(r) = 180 / acos(1 - (facet_epsilon / r));

// small tweak to avoid differencing artifacts
epsilon = 0.05;

//------------------------------------------------------------------
// derived values

internal_l = dim(internal_length);
internal_h = dim(internal_height);
bracket_w = dim(bracket_width);
bracket_l = dim(bracket_length);
wall_t = dim(wall_thickness);
hole_r = dim(hole_diameter/2);

//------------------------------------------------------------------
// rounded/filleted edges

module outset(d=1) {
  minkowski() {
    circle(r=d, $fn=facets(d));
    children(0);
  }
}

module inset(d=1) {
  render() inverse() outset(d=d) inverse() children(0);
}

module inverse() {
  difference() {
    square(1e5, center=true);
    children(0);
  }
}

module rounded(r=1) {
  outset(d=r) inset(d=r) children(0);
}

module filleted(r=1) {
  inset(d=r) render() outset(d=r) children(0);
}

//------------------------------------------------------------------

module hole() {
  translate([0,-epsilon,bracket_w/2]) rotate([-90,0,0]) {
    cylinder(r=hole_r, h=wall_t + (2 * epsilon), $fn=facets(hole_r));
  }
}

module holes() {
  d = ((bracket_l + internal_l) / 4) + (wall_t / 2);
  translate([d,0,0]) hole();
  translate([-d,0,0]) hole();
}

module bracket() {
  points = [
    [internal_l/2, internal_h],
    [internal_l/2, 0],
    [bracket_l/2, 0],
    [bracket_l/2, wall_t],
    [internal_l/2 + wall_t, wall_t],
    [internal_l/2 + wall_t, internal_h + wall_t],
    [-internal_l/2 - wall_t, internal_h + wall_t],
    [-internal_l/2 - wall_t, wall_t],
    [-bracket_l/2, wall_t],
    [-bracket_l/2, 0],
    [-internal_l/2, 0],
    [-internal_l/2, internal_h],
  ];
  linear_extrude(height=bracket_w, convexity=2) {
    filleted(0.25 * wall_t) rounded(0.25 * wall_t) polygon(points=points);
  }
}

difference() {
  bracket();
  holes();
}

//------------------------------------------------------------------

```


[User]
Hey, I'm looking to design a parametric coffee tamper, and I'd like your help creating the OpenSCAD files. I'm hoping for something that's pretty customizable.

Here are the key features I need:

*   **Tamper Base:** A cylindrical base for tamping the coffee. I need to be able to specify the diameter and height of this cylinder.

*   **Stem/Handle:** This will connect the tamper base to the top knob. It can either be straight or tapered and it's going to have a height that I can specify separately from the base. If it's tapered I want to be able to set both the bottom and top diameters. If straight, there's only one diameter.

*   **Top Knob:** A spherical knob at the top of the stem. I need to be able to adjust the diameter of this sphere.

*   **Bottom Bevel:** A small spherical bevel on the bottom of the tamper base, to give it a nice edge. I want to control the 'tightness' of the curve via a 'bottom_bevel' variable -- basically a divisor to the radius of the sphere.

I'd also like to control the overall smoothness of curves using a 'tamper\_detail' variable that affects the `$fn` for each object. I'd prefer to not use any libraries, so all this should be done in a base OpenSCAD file.

I’d really like the option to have a straight stem or a tapered stem, and this should be set via a variable named `tamper_style`. I'd prefer the names "straight" and "taper" for the possible values.

I’ve also got an example of code I like if it would help:

```
// Modified for thingiverse customizer
// by infinigrove Squirrel Master 2016 (http://www.thingiverse.com/infinigrove)
//
// Customizable Coffee Tamper v 1.2
// http://www.thingiverse.com/thing:1309333
//
//originally hacked from http://www.thingiverse.com/thing:708062
//Parametric coffee tamper by owar 4.3.2015

// Tamper detail
tamper_detail = 40; // [40:360]

// Tamper Style
tamper_style = "straight";// ["straight":Straight stem, "taper":Tapered stem]

// Tamper Diameter
tamper_diameter = 53; // [48:0.5:62]

tamper_height = 8; // [4:0.5:18]

holder_diameter = 14; // [6:0.5:28]

holder_height = 33; // [20:80]

top_knob_diameter = 28; // [10:58]

bottom_bevel = 1; // [.7:0.1:1.7]

/* [Hidden] */

	difference(){
        union(){
        cylinder(d = tamper_diameter, h = tamper_height, $fn=tamper_detail); // bottom base

        if (tamper_style == "straight") cylinder(d = holder_diameter, h = holder_height, $fn=tamper_detail); // center pole

        if (tamper_style == "taper") cylinder(d1 = holder_diameter, ,d2 = top_knob_diameter, h = holder_height, $fn=tamper_detail); // center pole

        translate([0,0,holder_height]) sphere(d=top_knob_diameter, $fn=tamper_detail); // knob on top

        translate([0,0,tamper_height/2]) sphere(holder_diameter/bottom_bevel, $fn=tamper_detail); // bottom bevel

        }

		translate([0,0,-holder_diameter*3]) cylinder(h = holder_diameter*3,r = tamper_diameter, $fn=tamper_detail);

	}
```

Thanks!

[Assistant]
CustomTamper-v1.2.scad:
```
// Modified for thingiverse customizer
// by infinigrove Squirrel Master 2016 (http://www.thingiverse.com/infinigrove)
//
// Customizable Coffee Tamper v 1.2
// http://www.thingiverse.com/thing:1309333
//
//originally hacked from http://www.thingiverse.com/thing:708062
//Parametric coffee tamper by owar 4.3.2015

// Tamper detail
tamper_detail = 40; // [40:360]

// Tamper Style
tamper_style = "straight";// ["straight":Straight stem, "taper":Tapered stem]

// Tamper Diameter
tamper_diameter = 53; // [48:0.5:62]

tamper_height = 8; // [4:0.5:18]

holder_diameter = 14; // [6:0.5:28]

holder_height = 33; // [20:80]

top_knob_diameter = 28; // [10:58]

bottom_bevel = 1; // [.7:0.1:1.7]

/* [Hidden] */

	difference(){
        union(){
        cylinder(d = tamper_diameter, h = tamper_height, $fn=tamper_detail); // bottom base

        if (tamper_style == "straight") cylinder(d = holder_diameter, h = holder_height, $fn=tamper_detail); // center pole

        if (tamper_style == "taper") cylinder(d1 = holder_diameter, ,d2 = top_knob_diameter, h = holder_height, $fn=tamper_detail); // center pole

        translate([0,0,holder_height]) sphere(d=top_knob_diameter, $fn=tamper_detail); // knob on top

        translate([0,0,tamper_height/2]) sphere(holder_diameter/bottom_bevel, $fn=tamper_detail); // bottom bevel

        }

		translate([0,0,-holder_diameter*3]) cylinder(h = holder_diameter*3,r = tamper_diameter, $fn=tamper_detail);

	}

```


[User]
I'm looking to design a parametric tool handle in OpenSCAD. I have a good idea of what I want, but I need some help getting the code right.

Essentially, I want a cylindrical handle with a few key features. The handle itself should have a configurable diameter and height. I also need a configurable number of indentations running along the length of the handle, and the depth of these indents should also be adjustable. Finally, there needs to be a hole down the center of the handle for the tool shaft, and its diameter must be configurable as well.

The overall design should start from a simple hull with a sphere on each end, then include the central hole as a cylinder, and then subtract away the indentations as cylinders along the outer edge.

I'd also like to be able to optionally include a finger divot near the base of the handle. This will be a slightly concave portion. I understand that the Minkowski operation can be resource intensive so I would like to keep it optional.

Could you help me write this OpenSCAD code? I'd like to be able to control all the dimensions as parameters, and if you could make use of BOSL2 that would be helpful.

[Assistant]
FileHandle.scad:
```
// ************* Credits part *************
// "Parametric Tool Handle"
// Programmed by Marcel Chabot - Feburary 2016
// Optimized for Customizer
//
//
//********************** License ******************
//**        "Parametric Tool Handle"             **
//**                  by Marcel Chabot           **
//**  is licensed under the Creative Commons     **
//** - Attribution - Non-Commercial license.     **
//*************************************************

$fn=25;

// ************* Declaration part *************
//Handle diameter
diameter = 25;
//Handle height
height = 80;
//Number of indents
indents = 6;
//Depth of indents
indentDiameter = 6;
//Diameter of tool shaft
toolDiameter = 4.5;
//Include finger divot. It may cause Customizer to fail.
fingerDivot = "false";// [true,false]

difference(){

    Handle();
    Indents();

    translate([0,0,5])cylinder(height+5, d=toolDiameter, false);
}

module Handle(){
    hull(){
        sphere(d=diameter);
        translate([0,0,5])cylinder(height, d=diameter, false);
    }
}

module Indents(){
    for(i=[0:indents]){
        rotate((360*i)/indents){
            translate([diameter/2,0,5]){
                sphere(d=indentDiameter);
                translate([0,0,height-4])sphere(d=indentDiameter);
                cylinder(height-4, d=indentDiameter, false);
            }
        }
    }
    if(fingerDivot == "true"){
        translate([0,0,height-5]){
            minkowski(){
                difference(){
                    cylinder(1, d=diameter+10);
                    cylinder(1, d=diameter+1);
                }
                sphere(2);
            }
        }
    }
}
```


[User]
Hey, I'm looking for some help designing a cellphone mount for my motorcycle. I've got a basic idea in mind, and I'd like to make it customizable for different phone sizes.

Essentially, I need two parts: a base that attaches to the handlebars and a frame that holds the phone. The base can be fairly simple, maybe a modified cylinder with a flat section for mounting. The frame should be a box-like structure with rounded corners, sized to fit the phone, but slightly larger. I'll want some extra supports on the sides, not going all the way to the front of the frame, and two inner holes to make it lighter/save material.

Here are some parameters I'd like to control:

*   **`phone_width`**: The width of the phone, like 68mm for my old Moto G.
*   **`phone_height`**: The height of the phone, about 131mm for that same phone.
*   **`phone_depth`**: The thickness of the phone, around 12mm for the Moto G.
*   **`border_thickness`**: How thick the frame walls and supports should be, maybe start with 2.5mm.
*   **`base_width`**: The width of the base that attaches to the handlebar.

I'd also like to be able to choose whether to render just the base or the frame or both to check them individually. So, a variable like `part` with options "base", "frame" or "all" would be very useful.

For the main frame, I was envisioning rounded corners, a box-like main frame and some inner "holes" for weight reduction. Also, the side supports will add stability but they don't have to go the full height of the frame. I imagine it like little posts and blocks to keep the phone in the correct position.

Could you generate the OpenSCAD files for this? I'd really appreciate it. I'm hoping for a parametric design, so I can easily adjust it for any phone. Thanks!

[Assistant]
walts-cellphone-moto-holder.scad:
```
part = "frame"; // [base:Support base,frame:Support frame]

// Cellphone Width (Moto G, 68mm)
width = 68; // [1:150]

// Cellphone Height (Moto G, 131mm)
height= 131; // [1:200]

// Cellphone Depth (Moto G, 12mm)
depth = 12; // [1:100]

// Border Thickness
border_thickness=2.5; // [2:0.5:10]

/* [Hidden] */

$fn=120;

print_part();

module print_part() {
	if (part == "base") {
		base(width);
	} else if (part == "frame") {
        box(width,height,depth,border_thickness);
	}
}

module frame(width, height, depth, border)
{
    difference()
    {
        roundedRect([width+border,height+border,depth+border],border);

        translate([0,0,(depth/2)+border])
        cube([width,height,depth],center=true);
    }
}

module sideStuff(width, height, depth, border)
{
            translate([(width/2)+border*0.75,0,depth+border*0.25])
            cube([border/2,height-20,border/2],center=true);

            translate([(width/2)+border/2,-(height-(20+border))/2,depth+border/2])
            cube([border,border,border],center=true);

            translate([(width/2)+border/2,(height-(20+border))/2,depth+border/2])
            cube([border,border,border],center=true);

            translate([-((width/2)+border*0.75),0,depth+border*0.25])
            cube([border/2,height-20,border/2],center=true);

            translate([-((width/2)+border/2),-(height-(20+border))/2,depth+border/2])
            cube([border,border,border],center=true);

            translate([-((width/2)+border/2),(height-(20+border))/2,depth+border/2])
            cube([border,border,border],center=true);

}

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

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

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

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

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

module innerHoles(width, height, depth, border)
{
            translate([0,-height/4,0])
            roundedRect([width*0.7,height*0.35,depth+border],5);

            translate([0,height/4,0])
            roundedRect([width*0.7,height*0.35,depth+border],5);
}

module box(width, height, depth, border)
{
    difference()
    {
        frame(width, height, depth, border);
        union()
        {
            innerHoles(width, height, depth, border);
            sideStuff(width, height, depth, border);
        }
    }
}

module base(width)
{
    translate([0,0,-5])
    {
        rotate([0,0,90])
        difference()
        {
        cube([30,width,10],center=true);
            union()
            {
                translate([0,0,-29])
                    rotate([90,90,0])
                        cylinder(h=width,r=30,center=true);
                translate([0,0,3])
                cube([30,27,3], center=true);
            }
        }
    }
}
```


[User]
Okay, so I've been making these custom coasters and I'd like an OpenSCAD file that I can use to generate them easily. Right now, I'm using some pretty hardcoded values and it's a pain to change things.

Essentially, the coaster is a cylinder with a raised lip and a recessed area for a cup to sit. On top of all of that I have two logos that are cut out of the top. The base coaster is flat, but the edges curve upwards. There's a very small radius on that curve. It's like the coaster was formed by spinning a cross-section around the Z-axis.

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

*   **Coaster Diameter:** This is the overall diameter of the coaster.
*   **Base Thickness:** This is the thickness of the base cylinder of the coaster before any features are applied.
*   **Cup Depression Diameter:** This is the diameter of the recessed area where the cup sits.
*   **Cup Depression Depth:** This is the depth of the recessed area where the cup sits.
*   **Curve Radius:** This is the radius of the edge curve that makes the raised lip.
*   **Upper Logo:** This is a 2D image file that will be cut out of the top of the coaster. I expect this will use `surface()`
*   **Lower Logo:** This is another 2D image file that will also be cut out of the top.

The files that I was using to make them were like this:
    //use <write.scad>
    //http://customizer.makerbot.com/image_surface?image_x=100&image_y=100

    /* [Coaster] */
    //Upper Image (150x150 pixels)
    Upper_Logo = "Mets2.dat"; // [image_surface:150x150]
    //Lower_Image (150x150 pixels)
    Lower_Logo = "Mets.dat"; // [image_surface:150x150]

    /* [Hidden] */
    //Coaster diameter in mm
    Coaster_diameter = 91; //[50:0.1:100]
    //Base thickness in mm
    Base_thickness = 5.8; //[2:0.1:10]     //5
    //Cup Depression Width
    Depression_diameter = 83; //[50:0.1:100]  //formerly 81.5
    //Cup Depression Depth
    Depression_depth = 20; //[10:0.1:40]
    //Curve Radius
    Curve_radius = 20.5; //[10:0.01:30]

    //Coaster radius
    Coaster_radius=Coaster_diameter/2;
    //Coaster radius
    Depression_radius=Depression_diameter/2;

    ///////////////////////program/////////////

    difference(){
        union(){
            translate([0,0,0])
            cylinder(r=Coaster_radius,h=Base_thickness,$fn = 300);

            translate([0,0,-1])
            rotate_extrude(convexity = 20, $fn = 300)
            scale([1, .754, 1])
            translate([Curve_radius*2, 8.5, 0])

            circle(r = 4.5, $fn = 100);

        }
        //Top layer logo
        translate([0,0,5.4])	rotate([0,180,0])	scale([-.385, .385, 1.5])
            surface(file = Upper_Logo, center = true, invert = false);

        //Bottom layer logo
        translate([0,0,5.435])	rotate([0,180,0])scale([-.385, .385, 3])
            surface(file = Lower_Logo, center = true, invert = false);

        //Depression
        translate([0, 0, 5])
    cylinder(r=Depression_radius,50,$fn = 100);
        translate([-100, -100, -30])cube([200, 200, 30],center=false); //cut off the bottom

    }

I think that the code is using a `write.scad` library, although it isn't being used so it could just be removed if you are going to make your own design.
I think that covers everything. Let me know if you have any questions!

[Assistant]
Coaster_Customizer_2.0.scad:
```
//use <write.scad>
//http://customizer.makerbot.com/image_surface?image_x=100&image_y=100

/* [Coaster] */
//Upper Image (150x150 pixels)
Upper_Logo = "Mets2.dat"; // [image_surface:150x150]
//Lower_Image (150x150 pixels)
Lower_Logo = "Mets.dat"; // [image_surface:150x150]

/* [Hidden] */
//Coaster diameter in mm
Coaster_diameter = 91; //[50:0.1:100]
//Base thickness in mm
Base_thickness = 5.8; //[2:0.1:10]     //5
//Cup Depression Width
Depression_diameter = 83; //[50:0.1:100]  //formerly 81.5
//Cup Depression Depth
Depression_depth = 20; //[10:0.1:40]
//Curve Radius
Curve_radius = 20.5; //[10:0.01:30]

//Coaster radius
Coaster_radius=Coaster_diameter/2;
//Coaster radius
Depression_radius=Depression_diameter/2;

///////////////////////program/////////////

difference(){
	union(){
		translate([0,0,0])
		cylinder(r=Coaster_radius,h=Base_thickness,$fn = 300);

		translate([0,0,-1])
		rotate_extrude(convexity = 20, $fn = 300)
		scale([1, .754, 1])
		translate([Curve_radius*2, 8.5, 0])

		circle(r = 4.5, $fn = 100);

	}
	//Top layer logo
	translate([0,0,5.4])	rotate([0,180,0])	scale([-.385, .385, 1.5])
		surface(file = Upper_Logo, center = true, invert = false);

	//Bottom layer logo
	translate([0,0,5.435])	rotate([0,180,0])scale([-.385, .385, 3])
		surface(file = Lower_Logo, center = true, invert = false);

	//Depression
	translate([0, 0, 5])
cylinder(r=Depression_radius,50,$fn = 100);
	translate([-100, -100, -30])cube([200, 200, 30],center=false); //cut off the bottom

}

```


[User]
Hey, I'm looking to get a parametric design for a cable clip for microphone stands. I've got a basic design idea in mind, and I'd like it to be flexible enough to handle different stand and cable diameters, as well as the clip opening angle.

Here are the specifics of the design:
*   The clip should basically consist of two cylinders, one larger for the stand, and one smaller for the cable, connected together with a curved "neck." The overall shape of the clip will be somewhat like a rounded figure 8.
*   I need to be able to specify the stand's opening diameter and the cable opening diameter as parameters.
*   There also needs to be a parameter for the overall height of the clip.
*   Lastly, the opening of the clip, where you insert the cable, should have an angle I can adjust.
*   The neck connecting the cylinders should not be uniform, but should transition nicely from the thicker stand cylinder to the thinner cable cylinder. The width should be derived from the diameter to have a natural proportion. It would also be ideal to round the edges of the connection where it joins the two cylinders.
*   I want to make it easily printable, so don't make any crazy overhangs.

I am thinking that a good approach would be using the `hull()` function to create the connection between the two cylinders. I also need a way to create the opening for the cable, so some sort of subtraction operation will need to be used, possibly a linear extrusion of a custom 2d shape. Lastly, I need to make small cylinders on each side of the opening to provide additional grip or support.

I would like all the dimensions to be in millimeters and angles in degrees. I'm not using any specific libraries yet, but if you think something like the BOSL2 library would be helpful for things like creating the curved shape or adding the rounded edges or to better define the wall thicknesses, feel free to use it. I think I need to provide the inner diameters of the two cylinders as well, so you can calculate the outer diameters needed for hull.

Could you generate an OpenSCAD file (or files) for this? Thanks!

[Assistant]
clip.scad:
```
// (mm) – should be slightly smaller than the actual stand
stand_opening_diameter = 13.5;

// (mm) – should be at least the size of the cable
cable_opening_diameter = 8;

// (mm)
height = 13;

// (degrees)
clip_opening_angle = 90;

module clip(height, major, minor, opening_angle=90) {
    spacing = 0.5; // extra space for cable
    wall_major = pow(major / 20, 1/2) * 20 / 5;
    wall_minor = wall_major * pow(minor / major, 1/3);
    rounding = min(wall_major, wall_minor) - 0.01;

    // Distance between centers
    distance = major/2 + minor/2 + spacing;

    union() {
        $fn = 100;
        difference() {
            hull() {
                translate([0, distance])
                    cylinder(d=minor + 2 * wall_minor, h=height);
                cylinder(d=major + 2 * wall_major, h=height);
            }

            union() {
                translate([0, distance])
                    cylinder(d=minor, h=height);
                translate([0, distance / 2, height / 2])
                    cube([minor, distance, height], center=true);
                cylinder(d=major, h=height);

                linear_extrude(h=height) {
                    r = major + wall_major;
                    dx = r * sin(opening_angle / 2);
                    dy = -r * cos(opening_angle / 2);
                    polygon(points=[[0, 0],
                                     [dx, dy],
                                     [r, -r],
                                     [-r, -r],
                                     [-dx, dy]]);
                }
            }
        }

        r = major / 2 + wall_major / 2;
        dx = r * sin(opening_angle / 2);
        dy = -r * cos(opening_angle / 2);
        translate([-dx, dy]) cylinder(d=wall_major, h=height, $fn=30);
        translate([dx, dy]) cylinder(d=wall_major, h=height, $fn=30);
    }
}

clip(height, stand_opening_diameter, cable_opening_diameter, clip_opening_angle);
```


[User]
I'd like to create a customizable cable dock for my Macbook Pro, similar to the one described in the text. I'm looking for a parametric design in OpenSCAD, so I can easily adjust it to fit different cable sizes.

Here's what I need:

**Overall Structure:**

*   The dock should have a rectangular outer shell with rounded corners. I need to be able to specify the overall width, depth, and height of this shell, as well as the radius of the corner rounding.
*   The dock will need cutouts for various ports, and these cutouts also need to be configurable.

**Port Cutouts:**

I need to be able to define the following for each port:

*   **Slot Dimensions:**  Width, depth, and height of the rectangular cutout.
*   **Corner Smoothing:**  The radius for rounding the corners of the slot.
*   **Cable Width:** Width of the cable channel that extends from the slot.
*   **X-Offset:**  The horizontal offset of the slot.
*   **Z-Offset:**  The vertical offset of the slot (calculated based on the outer height).

Specifically, I need to configure slots for:

1.  **Power Adapter:**  This should have parameters like `power_width`, `power_depth`, `power_height`, `power_radius`, `power_cablewidth`, and `power_xoffset`. The `zoffset` will depend on the overall height of the dock.

2.  **Two Video Ports:**  These should be identical, with parameters like `videoA_width`, `videoA_depth`, `videoA_height`, `videoA_radius`, `videoA_cablewidth`, `videoA_xoffset`, and the same set for `videoB`. Again, the `zoffset` will be calculated.

3.  **One USB Port:** This should have parameters like `usb_width`, `usb_depth`, `usb_height`, `usb_radius`, `usb_cablewidth`, and `usb_xoffset`, with the `zoffset` calculated.

4.  **Optional Audio Port:** I'd like to make this optional using a `generate_audio` parameter. If enabled (set to "Yes"), the dock needs to include a slot with parameters like `audio_width`, `audio_depth`, `audio_height`, `audio_radius`, `audio_cablewidth`, and `audio_xoffset`.

**Other Requirements:**

*   I need a `roundedRect` module that can be used to create the main shell and the port slots with rounded corners.
*   The cable channels for each port should extend slightly into the dock's body and be created by a rectangular extrusion.
*   The main body should be generated by a difference operation where the ports are subtracted from the outer shell.
*   When the audio port is disabled, a smaller outer shell is used and the smaller set of ports is subtracted.

I expect the code to be clear and well-commented, with variables and parameters that match those mentioned above. I'm not requesting any particular libraries to be used, so you can just stick to standard OpenSCAD. Can you help me with this?

[Assistant]
bookdock.scad:
```
// Macbook Pro Customizable Cable Dock
// by knarfishness, 01/30/16

//CUSTOMIZER VARIABLES

/* [Outer Wall Values] */

// The width (long side) of the dock module
outer_width = 90; // [80:120]
// The depth (short side) of the dock module
outer_depth = 12; // [10:20]
// The height (distance from laptop) of the dock module
outer_height = 30; // [20:50]
// How much to smooth the outer corners
outer_radius = 2; // [0.01:6]

/* [Power Adapter Settings] */

// Slot width
power_width = 17.15; // [17:18]
// Slot depth
power_depth = 5.25; // [5:7]
// Slot height
power_height = 13; // [10:15]
// Corner Smoothing
power_radius = 1; // [0.01:2]
// Cable width
power_cablewidth = 1.5; // [1.0:3.0]
// X-Offset (this should not need to change)
power_xoffset = 34;

/* [Video Port #1 Settings] */

// Slot width
videoA_width = 12; // [10:15]
// Slot depth
videoA_depth = 9; // [8:12]
// Slot height
videoA_height = 18.5; // [17:20]
// Corner smoothing
videoA_radius = 1; // [0.01:2]
// Cable width
videoA_cablewidth = 2.5; // [1.0:3.0]
// X-Offset (this should not need to change)
videoA_xoffset = 16;

/* [Video Port #2 Settings] */

// Slot width
videoB_width = 12; // [10:15]
// Slot depth
videoB_depth = 9; // [8:12]
// Slot height
videoB_height = 18.5; // [17:20]
// Corner smoothing
videoB_radius = 1; // [0.01:2]
// Cable width
videoB_cablewidth = 2.5; // [1.0:3.0]
// X-Offset (this should not need to change)
videoB_xoffset = 1;

/* [USB Port Settings] */

// Slot width
usb_width = 17; // [15:20]
// Slot depth
usb_depth = 6; // [4:8]
// Slot height
usb_height = 25; // [23:27]
// Corner smoothing
usb_radius = 0.5; // [0.01:2]
// Cable width
usb_cablewidth = 3; // [1.0:3.0]
// X-Offset (this should not need to change)
usb_xoffset = -18;

/* [(Optional) Audio Port Settings] */

// Generate a space for the audio port?
generate_audio = "Yes"; // [Yes,No]
// Slot width
audio_width = 5; // [3:7]
// Slot depth
audio_depth = 5; // [3:7]
// Slot height
audio_height = 15; // [10:20]
// Corner smoothing
audio_radius = 3; // [0.01:4]
// Cable width
audio_cablewidth = 1.5; // [1.0:3.0]
// X-Offset (this should not need to change)
audio_xoffset = -36;

//CUSTOMIZER VARIABLES END

// untweakable variables
power_zoffset = outer_height - power_height;
power = [power_width,power_depth,power_height,power_radius,power_cablewidth,power_xoffset,power_zoffset];

videoA_zoffset = outer_height - videoA_height;
videoA = [videoA_width,videoA_depth,videoA_height,videoA_radius,videoA_cablewidth,videoA_xoffset,videoA_zoffset];

videoB_zoffset = outer_height - videoB_height;
videoB = [videoB_width,videoB_depth,videoB_height,videoB_radius,videoB_cablewidth,videoB_xoffset,videoB_zoffset];

usb_zoffset = outer_height - usb_height;
usb = [usb_width,usb_depth,usb_height,usb_radius,usb_cablewidth,usb_xoffset,usb_zoffset];

audio_zoffset = outer_height - audio_height;
audio = [audio_width,audio_depth,audio_height,audio_radius,audio_cablewidth,audio_xoffset,audio_zoffset];

module outerShell() {
	roundedRect([ outer_depth, outer_width, outer_height ], outer_radius);
}

module smallerOuterShell() {
	translate([0,8,0])
	roundedRect([ outer_depth, outer_width-10, outer_height ], outer_radius);
}

// width, depth, height, radius, cablewidth, xoffset, zoffset
module port(name) {
	translate([0, name[5], name[6]-1])
		roundedRect([name[1], name[0], name[2]+2], name[3]);

	translate([-outer_depth/9, name[5]-(name[4]*2/2), -1])
		cube([outer_depth, name[4]*2, outer_height+2], center=false);

}

// module videoA
// module videoB
// module usb
// module audio

module ports5() {
	port(power);
	port(videoA);
	port(videoB);
	port(usb);
	port(audio);
}

module ports4() {
	port(power);
	port(videoA);
	port(videoB);
	port(usb);
}

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

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

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

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

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

module build()
{
	if(generate_audio == "Yes")
	{
		difference() {
			outerShell();
			ports5();
		}
	}
	else
	{
		difference() {
			smallerOuterShell();
			ports4();
		}
	}
}

build();

```


[User]
Okay, I need an OpenSCAD design for a promotional box that will hold a standard-sized SD card. I've got some basic ideas, but I'd like you to create a parametric model that I can easily tweak.

Here's what I'm thinking: The box should be a cube shape, and the size needs to be adjustable using parameters. Let's start with the box having a default size of about 60mm on each side with a height of 70mm. The walls should have a consistent thickness around the edges and be, by default, about 3mm thick. Inside this box, I'd like to have a support structure for the SD card. This support should have a base and a section that holds the SD card. The base should be about 8mm tall and the support itself about 38mm tall, but all these should be parameterized. The support for the SD card should have an opening that is sized to hold a standard SD card.

To give it some style, I'd like to add some angled "V" shaped beams, I'm picturing them on each edge of the box. These should have their own thickness and width settings and should be by default about 20mm wide and 1.2mm thick. The box should also include a lid with a lip that fits into the box. The lid itself should be fairly thin -- around 5mm tall by default. This lid should also have a slightly smaller lip that extends downwards for an interference fit. The lip should extend down by about 3mm. I need to make this a separate module for the lid.

Finally, I need to design a base for the SD card support and its placement inside the box, again, parameterized.

Could you generate the OpenSCAD files for me? I'm not using any special libraries right now, so base OpenSCAD is fine. Thanks!

[Assistant]
CajaVemn2.scad:
```
pared = 3;
alto_caja = 70;
ancho_caja = 60;

alto_base_sd = 8;
alto_soporte_sd = 38;

espesor_v = 1.2;
ancho_v = 20;

alto_tapa = 5;

module caja (){
    difference(){cube([ancho_caja,ancho_caja,alto_caja], center=true);
    translate([0,0,pared])cube([ancho_caja-(pared*2),ancho_caja-(pared*2),alto_caja], center=true);}
}

module lineaV (){
    rotate([0,atan(ancho_caja/alto_caja),0])cube([ancho_v,espesor_v,alto_caja*ancho_caja], center=true);
}

module lineasv(){
    translate([0,(ancho_caja/2),0]) lineaV();
    translate([0,-(ancho_caja/2),0]) rotate([0,0,180])  lineaV();
    translate([(ancho_caja/2),00,0]) rotate([00,0,90])  lineaV();
    translate([-(ancho_caja/2),0,0]) rotate([0,0,270])  lineaV();
}

module sd(){
    translate([0,0,(alto_caja/2-alto_base_sd)*-1+alto_soporte_sd/2])
    difference(){
    //	SD Standard: 32.0×24.0×2.1 mm
    cube([30,5,alto_soporte_sd], center =true);
    translate([0,0,15]) scale(1.1) cube([24,2.1,32], center =true);
    translate([0,0,20])
    rotate([90,0,0])scale([1.2,1,1])cylinder(h=10, r1=10, r2=10, center=true);
}}

module pisosd(){
    translate([0,0,((alto_caja/2)-(pared/2))*-1])
hull(){
    translate([0,0,  alto_base_sd-pared])
        cube([30,5,pared], center = true);
    cube([45,20,pared], center = true);
//    scale([2,1,1])cylinder(h=3, r1=12, r2=12);
    }
}

module borde_tapa(){
translate([0,0,(alto_caja/2)-alto_tapa])
difference(){
cube([ancho_caja, ancho_caja, pared], center=true);

hull(){
translate([0,0,pared/2 -1])
    cube([ancho_caja-pared *3, ancho_caja-(pared*3), 2], center=true);
translate([0,0, -pared/2])
    cube([ancho_caja-(pared*2), ancho_caja-(pared*2), 1], center=true);
};
}}

module caja_completa(){
difference(){
union(){
    caja();
    borde_tapa();
    }

lineasv();}

sd();
pisosd();
}

caja_completa();

```


[User]
I'd like to design a customizable hinge leaf for 3D printing, inspired by the Thingiverse design mentioned in the comments, but with more options for screws and a focus on easy printing. I'm envisioning a system with a main hinge leaf, potentially a locking pin (or hole) option, and the ability to arrange these leaves in a print setup.

Here's how I'd like the design to work:

**Hinge Leaf Module:**
   *   **Shape:** The hinge leaf should have a semi-circular hinge area and a flat, elongated arm extending from it.
   *   **Dimensions:**
        *   `height`: The height of the leaf.
        *   `width`: The minimum width of the leaf material (thickness).
        *   `length`: The length of the arm extending from the center of the hinge point.
        *   `hingeD`: The inner diameter of the hinge hole.
        *   `numberOfScrews`: The number of screw holes along the arm.
        *   `screwD`: The diameter of the screw holes.
        *   `firstHoleOffset`: The distance from the hinge center to the first screw hole.
   *   **Screw Holes:**  The screw holes should be arranged in a line along the arm and should be countersunk for a better fit. I'd like the countersink to be made using the hull operation.
    *   **Locking Mechanism:**
        *   An option (`hingeWithPinLock`) to have a pin or a hole at the hinge point, instead of just the hole.
            *   If a pin is chosen, a variable (`hingeWithPinLockTop`) should allow it to be placed on the top or bottom of the leaf. If it's on the top, it'll extend from the top of the leaf, and if on the bottom, it'll extend from the bottom.
        *   When this option is used, the hinge hole should be made slightly smaller to leave room for the pin.

**Print Setup Module:**
   *   I want a way to arrange the hinge leaves for printing in rows and columns.
   *   `printCols`: The number of columns of hinge leaves.
   *   `printRows`: The number of rows of hinge leaves.
   *   `printSpacing`: The space between the hinge leaves in the print setup.
   *   An option `showSetup` to view a setup of 3 leaves as in the original code.
   *   The ability to rotate the print setup by 180 degrees around the x-axis.

I'd like this all to be parameterized and easily customizable.  I think all the math needed is present in the original code. I'd like to see the result be all in one file, if possible, and I don't have any specific library requirements. I'm looking forward to what you come up with!

[Assistant]
HingeLeaf.scad:
```
// <Sopak's Hinge Leaf> (c) by <Kamil Sopko>
//
// <Sopak's Hinge Leaf> is licensed under a
// Creative Commons Attribution-ShareAlike 4.0 Unported License.
//
// You should have received a copy of the license along with this
// work.  If not, see <http://creativecommons.org/licenses/by-sa/4.0/>.

// this was inspired by http://www.thingiverse.com/thing:39137
// purpose of this is  customizer, more rigidity and easy print

/* [Dimensions] */

//height of one leaf ( 3 leafs  make 45 mm by default)
height=15;  // [10:100]
//minimum with of wall
width=4;    // [2:40]
//lenght of one leaf from center of hinge (real size is +width+hingeD/2)
lenght=60;  // [15:200]
//inner diameter for screw
hingeD=4.5; // [1:20]
//number  of screws
numberOfScrews=3;   // [2:10]
//diameter of screws
screwD=4;   // [2:10]
//ofset of first hole
firstHoleOffset=15;   // [10:100]

/* [Visibility] */

//number of leafes in cols
printCols=1;   // [1:5]
//number of leafes in rows
printRows=3;   // [1:5]
//spacing in print setup
printSpacing=3;   // [1:10]
//show print by default, if true show serup of 3 hinges
showSetup="no";     // [yes,no]
//add pin for force lockink instead of hole
hingeWithPinLock= "no"; // [yes,no]
//if hingeWithPinLock, chose side
hingeWithPinLockTop="no"; // [yes,no]
//quality
$fn=100;

module leaf(){
    difference(){
        union(){
            linear_extrude(height=height){
                difference(){
                    union(){
                        hull(){
                            circle(d=hingeD+2*width);
                            translate([lenght,hingeD/2+width/2])circle(d=width);
                        }                }
                    if(hingeWithPinLock=="no"){
                        circle(d=hingeD);
                    }
                }
            }

            if(hingeWithPinLock=="yes"){
                if(hingeWithPinLockTop=="yes"){
                    translate([0,0,height])sphere(d=hingeD-(hingeD/100*10));
                }else{
                    translate([0,0,0])sphere(d=hingeD-(hingeD/100*10));
                }
            }

        }
        stepSize=(lenght-firstHoleOffset)/numberOfScrews;
        stepSize2=stepSize+(stepSize/numberOfScrews);
        for(i=[firstHoleOffset:stepSize2:lenght]){
            translate([i,hingeD/2+width+1,height/2])rotate([90,0,0])cylinder(d=screwD,h=hingeD+2*width+2);
        }

        hull(){
            for(i=[firstHoleOffset:stepSize2:lenght]){
                translate([i,width/2,height/2])rotate([90,0,0])cylinder(d1=screwD,d2=height+width/2,h=hingeD/2+width+width/2);
            }
        }
    }
}
module print(rotateX=0){
    for(row=[0:printRows-1]){
        for(col=[0:printCols-1]){
            translate([col*(width+hingeD/2+lenght+printSpacing),row*(hingeD+width*2+printSpacing),0])rotate([rotateX,0,0])leaf();
        }
    }
}

if(showSetup=="yes"){
    translate([-hingeD/2-width,-hingeD/2-width,height/2]){
        translate([0,0,-height*2])leaf();
        translate([0,0,0])rotate([180,0,90])leaf();
        translate([0,0,0])leaf();
    }
}else{
    if(hingeWithPinLock=="yes" && hingeWithPinLockTop=="no"){
        translate([0,0,height])print(rotateX=180);
    }else{
        print();
    }
}

```


[User]
Okay, I'm looking to generate some procedurally-generated ship designs using OpenSCAD. I've seen some cool examples, and I'd like something that can create a variety of different hull shapes, with optional masts, railings, and other details.

Here's what I'm thinking for the core design parameters. I'd like to define a few control point lines:

*   **Keel Line:**  This line defines the bottom of the keel. It should have a few points allowing for some curvature, especially vertically - I want the keel to be able to curve upwards sometimes.
*   **Bottom Line:** This line will define the transition between the keel and the hull sides. It should allow for some beam width variation.
*   **Water Line:**  This line will sit at the waterline and define the basic shape of the hull at this level. It should also allow for some variation in beam and bow/stern shapes.
*   **Beam Line:**  This will be the top edge of the hull, and should be above the waterline line. I want this to allow for different hull profiles, including a pointed bow or stern.
*  **Rudder Line:** This will be a small simple line or a few points that represent the rudder of the ship.

I'd like the code to use Bezier curves to interpolate between these lines, to create smooth surfaces. The hull should be generated using `polyhedron()` connecting the points on the lines at different "slices" along the length of the ship. I think it would be neat if there was a clinker-style option, where each horizontal slice is slightly offset so they overlap.

For additional features, please consider the following:

*   **Railings:** I'd like railings to be created along the top edge of the hull. They should be simple, like thin cylinders. Maybe there could also be railing posts along the deck, which should also be simple cylinders or boxes.
*   **Masts:** I'd like the option to add masts. The number of masts should be randomly determined, maybe from zero to four masts. The mast positions should be based on the hull's shape (maybe along the waterline line), and their height should be randomized as well, but somewhat related to the size of the hull. The masts themselves can be simple cylinders. There should be an option for simplified rigging - maybe just simple rods attached to the mast at various angles.
*   **Middeck:** An optional mid-level deck area. I'd like this to be defined by some sort of control points along the beam line - sort of like little platforms on the side of the ship.
*   **Open Hull Option:** An option to 'hollow' the ship out, with a small offset. It should be an optional feature.

I'm hoping to get a pretty good variety of results. I'd like for the dimensions of the ship to be reasonably large, but also randomized - so a base length value that can get scaled by a random value, which can affect the height and width as well.

Finally, I'd like to visualize the control lines for the hull, so that I can better understand how the shapes are generated. This can be done by visualizing spheres at the control points.

Please use the following built-in OpenSCAD functions: `polyhedron()`, `hull()`, `cylinder()`, `sphere()`, `translate()`, `rotate()`, `scale()`, `mirror()`, `union()`, `difference()`, `intersection()`. I don't need any external libraries for this project. I think it should be possible to generate all this without relying on any of them. I do want the ability to see the debug output of values, but that shouldn't require a library.

[Assistant]
ShipSong.scad:
```

// No Preview. Just hit Create.   Always leave Part at 1"
part=1;//[1,2,3,4,5,6]
/* [Hidden] */
LOA=rnd(900,2000);
Stern=LOA*rnd(-0.1,0.3);
Bow=LOA*rnd(-0.1,0.3);
Beam=LOA*rnd(0.05,0.3);
BeamHeight=min(Beam*rnd(0.4,1),LOA*0.1);
SternHeight=BeamHeight*rnd(0.9,3);
BowHeight=max(SternHeight*rnd(0.9,2),BeamHeight*rnd(0.9,3));;

KeelBase=LOA-Stern-Beam;
KeelLine=[
[0,0,0],
[KeelBase*rnd(0.0,0.3),0,-KeelBase*rnd(-0.1,0.1)],
[KeelBase*rnd(0.3,0.6),0,-KeelBase*rnd(-0.1,0.1)],
[KeelBase*rnd(0.6,0.9),0,-KeelBase*rnd(-0.1,0.1)],
[KeelBase-1,0,0],
[KeelBase-1,0,0]];
BottomLine=[
[0,0,0],
[KeelBase*rnd(0,0.3),Beam*rnd(0.1,1.5),1],
[KeelBase*rnd(0.3,0.6),Beam*rnd(0.1,2),1],
[KeelBase*rnd(0.6,0.9),Beam*rnd(0.1,3),1],
[KeelBase,0,1],
[KeelBase,0,1]];
bowbend=rnd(-1,3);
WaterLine=[
[-Stern*rnd(0.1,0.9),0,SternHeight/2],
[-Stern*rnd(0.1,0.9),Beam*rnd(0.5,2),SternHeight/2],
[KeelBase*rnd(0,2),Beam*rnd(0.5,3),BeamHeight/2],
[KeelBase+Bow*bowbend,0,BowHeight/2],
[KeelBase+Bow*bowbend,0,BowHeight/2]];
beamstern=[-Stern*rnd(-0.1,1),0,SternHeight];
BeamLine=[
beamstern,
[beamstern[0]+Beam*rnd(0,1),Beam*rnd(0.15,1.5),(BeamHeight+SternHeight)/2],
[KeelBase*rnd(0.0,0.5),Beam*rnd(0.15,2),BeamHeight],
[(KeelBase+Bow)*rnd(0.5,1),Beam*rnd(0.15,2),(BeamHeight+BowHeight)/2],
[KeelBase+Bow,0,BowHeight],
[KeelBase+Bow,0,BowHeight]];
KeelBow=concat(
[
BottomLine[len(BottomLine)-1],
WaterLine[len(WaterLine)-1],
BeamLine[len(BeamLine)-1]]);

SternLine=[BeamLine[0],WaterLine[0],BottomLine[0],KeelLine[0]];
RudderLine=[WaterLine[0]+[0,0,LOA*0.05],WaterLine[0]-[LOA*rnd(0.03,0.07),0,0],BottomLine[0]-[LOA*rnd(0.1,0.15),0,0],KeelLine[0]+[0,0,-LOA*0.01]];
tiny=[0.0001,0.0001,0.0001];
Clinked=rnd(0,1);
openhull=sign(rnd(-1,1));
nummasts= floor(rnd(0,4));
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

  union(){
 masts(nummasts);
  *  BoatHull(0,0,16,Clinked);
   *   Railings();
    }
//*render()
difference(){

    union(){
    if(floor(rnd(0,5))!=0 ||openhull>0){ Railings();}
    BoatHull(0,0,16,Clinked);
    }

    union(){
   if(floor(rnd(0,2))!=0){ Middeck();}

    translate(tiny)BoatHull(LOA/50,LOA/50*openhull,16);
    }

    }
if (nummasts>0){
intersection(){

    mirrorextrudeT(WaterLine,16,0.05,0.99){
    translate([0,-LOA/50,0]) scale(3) cube([LOA/1000,LOA/1000,LOA/200],center=true);
    }

    BoatHull(LOA/400,0,10);
    }}
ctrl();

/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
module Railings(){

mirrorcopy([0,-1,0]){
    extrudeT(BeamLine,16,0,1){
    translate([0,0,0]) scale(2.5) cylinder(LOA/100,LOA/300,LOA/300,center=true,$fn =6);
    }  }

extrudeT(KeelBow,16,-0.07,1){
    translate([0,0,-5]) scale(3) cube([LOA/200,LOA/150,LOA/150],center=true);
    }
/*extrudeT(KeelLine,16,0.25,0.91){
    translate([0,0,-5]) scale(3) cube([LOA/1000,LOA/150,LOA/300],center=true);
    }*/

extrudeT(SternLine,16,0,1.2){
    translate([0,0,-5]) scale(3) cube([LOA/200,LOA/200,LOA/150],center=true);
    }
   color("RED")hull(){ extrudeT(RudderLine,6,0,1.1){
    translate([0,0,-5]) scale(3) sphere(LOA/400,center=true,$fn=6);
    }}

    intersection(){
    cube([LOA*2,LOA/50,LOA*2],center=true);
    BoatHull(-30,10,6);}
}
module masts(n=2){
       m=0.8/(n+0.5);
    i=len(WaterLine)-1 ;
    MastLine=[[max(WaterLine[0][0],BeamLine[0][0]),0,WaterLine[0][2]],[bez2(0.5, WaterLine)[0],0,bez2(0.5, WaterLine)[2]],[min(WaterLine[i][0],BeamLine[i][0]),0,WaterLine[i][2]]];

       for (s=[0.05+m:m:0.89]){
      p= bez2(s, MastLine);
       echo(p);
           MH=LOA*rnd(0.5,0.6)+Beam*rnd(0.2,0.2);th=MH*0.03;
   translate(p){
       if (Beam<LOA*0.1){   cylinder(MH,th*0.5,th*0.2);
           translate([-th*0.25,0,bez2(s, BeamLine)[2]]) rotate([0,rnd(-5,5),-95]){ rotate([90,0,0])cylinder(KeelBase*m,th*0.5,th*0.3);   }}
           else{cylinder(MH,th*0.8,th*0.3);
   translate([th*0.5,0,MH*rnd(0.5,0.70)]) rotate([rnd(0,25),0,0])mirrorcopy([0,-1,0]){ rotate([90,0,0])cylinder(MH*0.5,th*0.5,th*0.3);   }}
       }}}

module Middeck()
{   s=rnd(0.4,0.5);
   e=rnd(0.52,0.63);
    bh=BeamHeight*rnd(0.3,0.5);
    hull(){
translate([bez2(s, BeamLine)[0],0,bez2(s, BeamLine)[2]])rotate([90,0,0])cylinder(Beam*4,bh,bh,center=true);
translate([bez2(midpoint(s,e), BeamLine)[0],0,bez2(midpoint(s,e), BeamLine)[2]])rotate([90,0,0])cylinder(Beam*4,bh,bh,center=true);
translate([bez2(e, BeamLine)[0],0,bez2(e, BeamLine)[2]])rotate([90,0,0])cylinder(Beam*4,bh,bh,center=true);}

    }
module BoatHull(offset=0,offset2=0,D=6,Clinker=0){
hstep=1/D;
vstep=1/(D*0.5);
    HLOA=LOA*0.5;
    offsetscale= (LOA-offset)/LOA;

for (t=[-0:hstep:1-hstep]){
spar1=[ bez2(t, BeamLine)+[0,0,-offset2],bez2(t, WaterLine),bez2(t, BottomLine),bez2(t, KeelLine)+[0,0,offset]];
spar2=[ bez2(t+hstep, BeamLine)+[0,0,-offset2],bez2(t+hstep, WaterLine),bez2(t+hstep, BottomLine),bez2(t+hstep, KeelLine)+[0,0,offset]];

for (v=[0:vstep:1-vstep]){

    p1=[((bez2(v, spar1)[0]-HLOA)*offsetscale)+HLOA,max(0,bez2(v, spar1)[1] ),bez2(v, spar1)[2]];
    p2=[((bez2(v+vstep, spar1)[0]-HLOA)*offsetscale)+HLOA,max(0,bez2(v+vstep, spar1)[1] ),bez2(v+vstep, spar1)[2]];
    p3=[((bez2(v, spar2)[0]-HLOA)*offsetscale)+HLOA,max(0,bez2(v, spar2)[1] ),bez2(v, spar2)[2]];
    p4=[((bez2(v+vstep, spar2)[0]-HLOA)*offsetscale)+HLOA,max(0,bez2(v+vstep, spar2)[1] ),bez2(v+vstep, spar2)[2]];

 p5=p2-[0,LOA/150,0]*SC3(v);
 p6=p4-[0,LOA/150,0]*SC3(v);
if (Clinker >0.5){
intersection(){
hull(){
translate([0,-offset,0])polyhedron([p1,p5,p3,p6],[[0,2,1],[1,2,3,]]);
translate([0,-2000,0])polyhedron([p1,p5,p3,p6],[[0,2,1],[1,2,3,]]);
}
mirror([0,-1,0])hull(){
    {translate([0,-offset,0])polyhedron([p1,p5,p3,p6],[[0,2,1],[1,2,3,]]);
translate([0,-2000,0])polyhedron([p1,p5,p3,p6],[[0,2,1],[1,2,3,]]);
        }}}
    }
    else{

        intersection(){
hull(){
translate([0,-offset,0])polyhedron([p1,p2,p3,p4],[[0,2,1],[1,2,3,]]);
translate([0,-2000,0])polyhedron([p1,p2,p3,p4],[[0,2,1],[1,2,3,]]);
}
mirror([0,-1,0])hull(){
    {translate([0,-offset,0])polyhedron([p1,p2,p3,p4],[[0,2,1],[1,2,3,]]);
translate([0,-2000,0])polyhedron([p1,p2,p3,p4],[[0,2,1],[1,2,3,]]);
        }}}

        }

}
}
    }

    module ctrl(){

        %color("RED"){mirror([0,-1,0]){

{ShowControl((BottomLine));
ShowControl((WaterLine));
ShowControl((BeamLine));}
}
{ShowControl((KeelLine));
ShowControl((BottomLine));
ShowControl((WaterLine));
ShowControl((BeamLine));}}}

module extrudeT(v,d=8,start=0,stop=1) {
         detail=1/d;
    for(i = [start+detail: detail: stop]) {
       for (j=[0:$children-1])
      hull() {
        translate(t(bez2(i,v))) rotate(bez2euler(i, v))scale(bez2(i  , v)[3]) children(j);
        translate(t(bez2(i - detail, v))) rotate(bez2euler(i - detail, v))scale(bez2(i- detail  , v)[3]) children(j);
      }
    }
  }

module mirrorextrudeT(v,d=8,start=0,stop=1) {
         detail=1/d;
    for(i = [start+detail: detail: stop]) {
       for (j=[0:$children-1])
      hull() {mirrorcopy([0,-1,0]){
        translate(t(bez2(i,v))) rotate(bez2euler(i, v))scale(bez2(i  , v)[3]) children(j);
        translate(t(bez2(i - detail, v))) rotate(bez2euler(i - detail, v))scale(bez2(i- detail  , v)[3]) children(j);
      }}
    }
  }

  module ShowControl(v)
  {  // translate(t(v[0])) sphere(v[0][3]);
      for(i=[1:len(v)-1]){
       // vg  translate(t(v[i])) sphere(v[i][3]);
          hull(){
              translate(t(v[i])) sphere(0.5);
              translate(t(v[i-1])) sphere(0.5);
              }          }
      }

module mirrorcopy(vec=[0,1,0])
{
    children();
    mirror(vec) children();
}

 function  subdv(v)=[
  let(last=(len(v)-1)*3)
  for (i=[0:last])
      let(j=floor((i+1)/3))

  i%3 == 0?
    v[j]
  :
    i%3  == 2?
       v[j]- un(un(pre(v,j))+un(post(v,j)))*(len3(pre(v,j))+len3(post(v,j)))*0.1
        :
       v[j] +un(un(pre(v,j)) +un(post(v,j)))*(len3(pre(v,j))+len3(post(v,j)))*0.1

  ]
  ;
 function bz2t(v,stop,precision=0.01,t=0,acc=0)=
    acc>=stop||t>1?
    t:
    bz2t(v,stop,precision,t+precision,acc+len3(bez2(t,v)-bez2(t+precision,v)));

function len3bz(v,precision=0.01,t=0,acc=0)=t>1?acc:len3bz(v,precision,t+precision,acc+len3(bez2(t,v)-bez2(t+precision,v)));

function bez2(t, v) = (len(v) > 2) ? bez2(t, [
  for(i = [0: len(v) - 2]) v[i] * t + v[i + 1] * (1 - t)
]): v[0] * t + v[1] * (1 - t);
function lim31(l, v) = v / len3(v) * l;
function len3(v) = sqrt(pow(v[0], 2) + pow(v[1], 2) + pow(v[2], 2));
function bez2euler(i, v) = [0, -asin(bez2v(i, v)[2]), atan2(bez2xy(bez2v(i, v))[1], bez2xy(bez2v(i, v))[0])];

function bez2xy(v) = lim31(1, [v[0], v[1], 0]); // down xy projection
function bez2v(i, v) = lim31(1, bez2(i - 0.0001, v) - bez2(i, v)); // unit vector at i
function t(v) = [v[0], v[1], v[2]];
function rndR()=[rands(0,360,1)[0],rands(0,360,1)[1],rands(0,360,1)[0]];
function rndV()=[rands(-1,1,1)[0],rands(-1,1,1)[0],rands(-1,1,1)[0]];
function midpoint(start,end) = start + (end  - start )/2;
function rndc()=[rands(0,1,1)[0],rands(0,1,1)[0],rands(0,1,1)[0]];

      function rnd(a,b)=a+gauss(rands(0,1,1)[0])*(b-a);

  function t(v) = [v[0], v[1], v[2]];

    function un(v) = v / max(len3(v),0.000001) * 1;
function len3(v) = sqrt(pow(v[0], 2) + pow(v[1], 2) + pow(v[2], 2));
  function pre(v,i)= i>0?         (v[i]-v[i-1]):[0,0,0,0];
  function post(v,i)=i<len(v)-1?  (v[i+1]-v[i]):[0,0,0,0] ;
  function SC3 (a)= let( b=clamp(a))(b * b * (3 - 2 * b));
  function clamp (a,b=0,c=10)=min(max(a,b),c);
function gauss(x)=x+(x-SC3(x))*2;;
```