I'm not qualified to say whether it's supposed to be this way or not, but if it's supposed to be this way I think I found the reason why. See the attached image after one 45 degree rotation: <http://forum.openscad.org/file/n11156/cube_diagonal.png> So for subsequent rotation, when rotating the corner 45 (where the red and blue meet), it won't line up. -- View this message in context: http://forum.openscad.org/Do-3-45-turns-of-a-line-in-the-axis-make-it-a-space-diagonal-to-that-octant-tp11132p11156.html Sent from the OpenSCAD mailing list archive at Nabble.com.