Hi Sam, Could you share the STEP file for the flex gear? I want to look at the tooth shape. Thanks John
> -----Original Message----- > From: Sam Sokolik [mailto:samco...@gmail.com] > Sent: November-27-21 8:18 PM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] Harmonic Drive > > I found that a while ago - That was what I initially started to build. > But the cup seems to not handle flexing. Atleast pla (I never tried it > with petg). When Andy mentioned the style with no cup - I went that > direction. I first made the flex gear out of pla - but it fatigued after > about 6 hours of running full speed (of the stepper). Which might be just > fine for a hobby 4th axis. Your not running the rotary axis at 100% feed > all the time. I bought a role of petg and printed a flex gear with it. > As much as I have run this setup (petg flex gear and pla splines) - I have > not had the petg flex gear fail - even after torque testing it. (although > I have not taken it apart) but it still runs and doesn't randomly stall. > > sam > > On Sat, Nov 27, 2021 at 10:05 PM John Dammeyer <jo...@autoartisans.com> > wrote: > > > For those who have 3D printed the gear portions of the harmonic drive what > > plastic did you find worked the best? > > > > Thanks > > John > > > > > -----Original Message----- > > > From: John Dammeyer [mailto:jo...@autoartisans.com] > > > Sent: November-26-21 11:18 PM > > > To: Enhanced Machine Controller (EMC) > > > Subject: [Emc-users] Harmonic Drive > > > > > > List has been quiet lately on the harmonic drive subject. I stumbled on > > this site. > > > > > > > > https://howtomechatronics.com/how-it-works/what-is-strain-wave-gear-harmonic-drive-a-perfect-gear-set-for-robotics- > > > applications > > > > > > John > > > > > > > > > _______________________________________________ > > > Emc-users mailing list > > > Emc-users@lists.sourceforge.net > > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > > > > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
