How about this? //================= $fa=1; $fs=1; difference(){ cylinder(r=5, h=20, center=true); union(){ difference(){ cylinder(r=2, h=21,center=true); translate ([15,0,0]) rotate([0,0,45]) cube(21,21,21, center=true); } } } //=============== -- View this message in context: http://forum.openscad.org/how-to-make-this-object-tp14039p14252.html Sent from the OpenSCAD mailing list archive at Nabble.com.