concertina

keycap.scad

 1include <BOSL2/std.scad>
 2include <BOSL2/constants.scad>
 3
 4$fn=120;
 5
 6difference() {
 7  union() {
 8    cyl(d=5, h=10, rounding2=1, anchor=BOTTOM);
 9    cuboid([5, 5, 3.8], anchor=BOTTOM);
10  }
11  cuboid([2, 4, 3.8*2]);
12  cuboid([4, 2, 3.8*2]);
13}
14