boxes.scad

// Library: boxes.scad
// Version: 1.0
// Author: Marius Kintel
// Copyright: 2010
// License: BSD

// roundedBox([width, height, depth], float radius, bool sidesonly);

// EXAMPLE USAGE:
// roundedBox([20, 30, 40], 5, true);

// size is a vector [w, h, d]
module roundedBox(size, radius, sidesonly)
{
  rot = [ [0,0,0], [90,0,90], [90,90,0] ];
  if (sidesonly) {
    cube(size - [2*radius,0,0], true);
    cube(size - [0,2*radius,0], true);
    for (x = [radius-size[0]/2, -radius+size[0]/2],
           y = [radius-size[1]/2, -radius+size[1]/2]) {
      translate([x,y,0]) cylinder(r=radius, h=size[2], center=true);
    }
  }
  else {
    cube([size[0], size[1]-radius*2, size[2]-radius*2], center=true);
    cube([size[0]-radius*2, size[1], size[2]-radius*2], center=true);
    cube([size[0]-radius*2, size[1]-radius*2, size[2]], center=true);

    for (axis = [0:2]) {
      for (x = [radius-size[axis]/2, -radius+size[axis]/2],
             y = [radius-size[(axis+1)%3]/2, -radius+size[(axis+1)%3]/2]) {
        rotate(rot[axis])
          translate([x,y,0])
          cylinder(h=size[(axis+2)%3]-2*radius, r=radius, center=true);
      }
    }
    for (x = [radius-size[0]/2, -radius+size[0]/2],
           y = [radius-size[1]/2, -radius+size[1]/2],
           z = [radius-size[2]/2, -radius+size[2]/2]) {
      translate([x,y,z]) sphere(radius);
    }
  }
}