On Saturday 08 August 2020 19:51:48 Bari wrote: > Another idea is >1k harmonic drive designs for download in many native > 3d CAD formats > > https://www.traceparts.com/en/search > > Download in the format you wish. You have the native files so you can > modify to your hearts desire.
But there is not a readable description. And all the images I looked at are alike. I'd assume all those models are for different sizes and gear ratio's but how do _I_ determine what I'm getting the files for? To drive a BS-1 indexing head will take something a nema-23 motor can drive. But for my old telescope, a 92 oz/in nema 17 is probably overkill. It has 2 watt, 50 yo electric clock synchro motors on it now. Range is about an hours tracking, but enough cyclic errors to need active guidance. And I didn't register, it would probably be like Fine Woodworking, 3 to 6 spams a day. Some of which are quite bulky, with browser attacks at least once daily. Excellent training for spamassassin. :) How do I decode the model numbers into size od, gear ratio, and motor size. Input shaft size would also be nice. And what format do I get them in so freecad can freely modify? step draws nice gfx, doesn't seem to qualify for edit ablility. Thanks Bari. 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
