I will post them later tonight.. To be honest - I took a video of the one of the drive mfg and kinda measured the tooth angle. (mine are just triangles..)
sam On Tue, Nov 30, 2021 at 2:30 PM John Dammeyer <jo...@autoartisans.com> wrote: > 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 > _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
