OpenSCAD source code: Thinwall soap dish to test 3D printing transparency

Shower Soap Dish.scad

// Shower soap dish
// Ed Nisley - KE4ZNU
// 2026-01-13

include <BOSL2/std.scad>

/* [Hidden] */

HoleWindage = 0.2;
Protrusion = 0.1;
NumSides = 3*3*4;

$fn=NumSides;

ID = 0;
OD = 1;
LENGTH = 2;

WallThick = 0.6;
BaseThick = 2.0;

//DishOA = [80.0,40.0,20.0];          // standing used Dove
DishOA = [90.0,50.0,30.0];          // standing Dove
//DishOA = [100.0,65.0,30.0];       // half-bar

DishTaper = [10.0,10.0];
CornerRadius = 15.0;

DrainOA = [10.0,DishOA.y,3.0];
DrainOC = DishOA.x/3;

//----------
// Build it

  difference() {
    union() {
      linear_extrude(BaseThick)
        rect([DishOA.x,DishOA.y] - DishTaper,rounding=CornerRadius);

      rect_tube(DishOA.z,wall=WallThick,
                size1=[DishOA.x,DishOA.y] - DishTaper,size2=[DishOA.x,DishOA.y],
                rounding=CornerRadius,anchor=BOTTOM);
    }

    for (j=[-1,1])
      right(j*DrainOC/2)
        up(BaseThick)
          cuboid(DrainOA,rounding=1.0,anchor=BOTTOM+BACK);
  }

More details on my blog at https://softsolder.com/2026/01/15/translucent-soap-dishes/