Hackathon/3d-printing/files/scad/head_cap.scad

$fn =100; 
difference(){
minkowski()
{
  cube([40,14,11]);
  cylinder(r=2,h=1);
}

translate([1,1,-1]) minkowski()
{
  cube([40-2,14-2,2]);
  cylinder(r=2.2,h=10);
}
}