On 7/28/25 10:33, Dylan via Discuss wrote: > I haven't had a chance to test out any of the approaches suggested > yet, but it certainly seems high on the list. > D > > On 28/07/2025 14:38, Jon Bondy via Discuss wrote: >> Glenn's PolyRound approach seemed simple and elegant to me.  That >> does not work for you? >> >> Jon >> >> On 7/28/2025 9:34 AM, Dylan via Discuss wrote: >>> If I need to do this, then I may as well model it directly in, for >>> example, Blender. The whole point of this exercise is to eliminate >>> the need to model each instrument individually, and instead simply >>> use measurements as input. How successful that end up being is a >>> matter for experiment and discovery... >>> D I faced a similar problem in forming a buttress thread in linuxcnc, but wanted the smooth 7 degree loaded face dead smooth, which in linuxcnc would have doubled the size of the g-code I'd have to write. So I cheated and made a wedge to mount the spindle motor at a 7 degree angle so the whole load face of the tooth was cut by the side of a .250" DOC 1/16" RN tool. Dead smooth face of tooth on half the g-code.  Sometimes it pays to think outside that famous box. Then to make the half nuts on a 3d printer, I just made a 7 point polygon for the faces in plastic.. With a coat of carnaba wax on the hard maple screw its amazingly smooth.  And capable of several tons of vice pressure. > _______________________________________________ > OpenSCAD mailing list > To unsubscribe send an email to discuss-leave@lists.openscad.org Cheers, Gene Heskett, CET. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis