Greetings all you OpenSCAD experts; I had no trouble making a ring with this code:
h = 5.25 ; r1 = ( 73.6/2.000000 ) ; r2 = ( r1 + 2.6000 ) ; difference() { cylinder( h , r2 , r2 , $fn = 180 , center = true ) ; cylinder( h , r1 , r1 , $fn = 180 , center = true ) ; } But how do I generate another 2.5mm radius cylinder but only for the stated degrees, like a half cylinder? The tut I'm following doesn't seem to address this. Thanks. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users