I am just attempting this and have found that it's very steep mathematics for an evening to adjust transformation and rotation matrices to account for irregular rotations of cubes around the middle of the y axis of one of the faces, i basically want rotate cubes as if they were jointed by a point in the middle of their base. I figure that the only logical way for me to do that is to rewrite a cube primitive centered in the middle of a y axis face and not in the middle or corner of the cube. -- View this message in context: http://forum.openscad.org/rotating-a-cube-around-the-center-of-the-y-axis-of-the-cube-tp3424p13587.html Sent from the OpenSCAD mailing list archive at Nabble.com.