The AlibreCAM Gear generator doesn't accept module. Instead it wants number of teeth and pitch diameter.
So I whipped up a spreadsheet that converts say the module 1.25 that Todd used and chose 19 teeth for the sun gear. That appears to be the right size pitch diameter for the test setup. At least when I check it out with my calipers. But of course 19T don't fit. It has to be 20T and that then physically doesn't fit. So creating a true planetary set with all the gears fitting appears to be a bit more difficult. John > -----Original Message----- > From: Gregg Eshelman via Emc-users [mailto:emc-users@lists.sourceforge.net] > Sent: December-15-21 8:22 PM > To: Enhanced Machine Controller (EMC) > Cc: Gregg Eshelman > Subject: Re: [Emc-users] Harmonic Drive > > Does FreeCAD's gear wizard support both Diametral Pitch and Module gears now? > > > On Wednesday, December 15, 2021, 04:36:00 PM MST, John Dammeyer > <jo...@autoartisans.com> wrote: > > I still haven't been able to make a simple circle in FreeCAD.� I keep > looking for the Alibre way of doing it which for my brain has > always been close to perfect.� Never could use AutoCAD and I find Fusion360 > confusing . > However the gear tool is quite nice in FreeCAD. > > I'm still having some problem visualizing exactly how the gears turn to > create 67:1.� So I thought I'd blow a bunch of money on > filament and print them.� In hindsight I should have expanded the pinion > holes to 22mm since that's a standard (cheap) bearing size. > > Too late now.� Just over 2 hours before the other 4 are done.� I could make > some tubes that hold smaller diameter ones.� � Or just > play with the motion here first.� See how it works and then decide if I want > to use my module 1.0mm cutters to make them out of > metal. > > Or just print ones with inset relief to hold 8x22x7 standard bearings. > 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
