$fn = 50; use //cylinder(r=8,h=2); module inner() { cube([150,66,17+11]); } module outer() { minkowski() { inner(); cylinder(r=3,h=10); } } difference() { outer(); inner(); translate([20,-10,31]) cube([110,90,10]); translate([12,5,42]) minkowski() { stand1(); cylinder(r=1.2, h=0.2); } translate([150-35,62,0]) cube([2,10,11+5]); }