rotate_extrude(angle) only works if there is nothing extending below the origin. For example, this works: rotate_extrude(angle=220)  translate([25,25,0])   minkowski()   {     square(75,100);     circle(25);   } But if you comment out the /translate()/ line it does not work presumably because the shape now extends past the origin. I'm not sure if this behavior is intended but I can tell you it took me a while to figure out the /translate()/ workaround. I'm using Windows with the 2016.01.26 build. -- View this message in context: http://forum.openscad.org/rotate-extrude-angle-requires-tp16032.html Sent from the OpenSCAD mailing list archive at Nabble.com.

On 02/03/2016 10:37 PM, thequack wrote: > rotate_extrude(angle) only works if there is nothing extending below the origin. > That's intentional (and not related to the usage of the angle parameter) as it would otherwise create self intersecting geometry. It's also giving a message telling that (without the translate): ERROR: all points for rotate_extrude() must have the same X coordinate sign (range is -2.61 -> 95.23) ciao, Torsten.