I have a collection of harmonic drives from a robot. Making a 4th axis has been on the list for a long time. The drives aren't exactly in a easily usable format, unfortunately.
On Sat, Dec 16, 2017 at 10:09 AM, andy pugh <[email protected]> wrote: > On 16 December 2017 at 04:10, Chris Albertson <[email protected]> > wrote: > > If you can find an FHA drive then the servo and a very serious > >> crossed-roller gear is included. > >> http://bodgesoc.blogspot.co.uk/2017/05/harmonic.html > > > > > > The guy who made the above video said he bought the 4" diameter harmonic > > drive on eBay for about $200. > > I paid $250 for the one in my blog post (Was it clear that the link > was to my own 4th-axis project?) but then had to pay a bit more for > postage and import duty to the UK. > > The integrated servo has a 6000 counts-per rev encoder and then a > 100:1 reduction, so 600,000 counts per rev, or .0006 of a degree. > > -- > atp > "A motorcycle is a bicycle with a pandemonium attachment and is > designed for the especial use of mechanical geniuses, daredevils and > lunatics." > — George Fitch, Atlanta Constitution Newspaper, 1916 > > ------------------------------------------------------------ > ------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
