I think the cutout for the window isn't deep enough for the offset window - I replaced %cube([1.00, 0.12, 0.80]); with cube([1.00, 0.3, 0.80]); -- View this message in context: http://forum.openscad.org/wall-with-window-in-3D-tp12298p12307.html Sent from the OpenSCAD mailing list archive at Nabble.com.