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:[email protected]] 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 <[email protected]> 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 > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
