how did you make two offset profiles at 180 degrees apart. thats the bit I am having trouble working out.
do you think you could share your alibre files? I have alibre and can also import into fusion 360 regards Andrew On Wed, Apr 1, 2020 at 9:55 PM Frank Tkalcevic <fr...@franksworkshop.com.au> wrote: > I got most of my information from this site... > > http://www.zincland.com/hypocycloid/ > > There's a python script to generate the profiles on that page > (http://www.zincland.com/hypocycloid/hypocycloid.zip) > > I wrote a C# program for Alibre Design to generate the parts - the code is > incomplete (https://github.com/ftkalcevic/Hypocycloid) > > > -----Original Message----- > From: andrew beck [mailto:andrewbeck0...@gmail.com] > Sent: Wednesday, 1 April 2020 6:36 PM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] best diy 4th axis > > frank how do you design them? eg do you generate the gear > mathematically and what cad software do you use? > > regards > > Andrew > > On Wed, Apr 1, 2020 at 8:19 PM Frank Tkalcevic < > fr...@franksworkshop.com.au> > wrote: > > > > https://www.youtube.com/watch?v=Eds48L4cJjM > > > > In those designs, I've always been concerned that the moving part of the > > gear rubs against the outside lobes. This repair video shows a Sumitomo > > Cyclo which uses rolling pins on the outside, so minimal friction... > > > > https://youtu.be/H_oMVO_OTGs?t=157 > > > > (There's another video out there that shows an exploded view of this, but > I > > couldn't find it). > > > > I used this idea for some 3d printed hypocycloidal gearboxes for a robot > > arm, using bearings for the outside pins. It works, but the plastic is a > > bit squishy - on the TODO list is to cnc machine them out of aluminium, > > which shouldn't be hard as they are 2 1/2D parts. > > > > > > > > > > > > > > _______________________________________________ > > 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
