How odd. All I got on that step file link was 404 not found. Sent from my
Samsung S10
-------- Original message --------From: Chris Albertson
<albertson.ch...@gmail.com> Date: 2021-12-01 1:22 p.m. (GMT-08:00) To:
"Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> Subject:
Re: [Emc-users] Harmonic Drive Thanks for the link. But I noticed there was a
STEP file provided. I'veimported it into Fusion360. It imports well. No
need to convert the STLfiles.Here is a view-only public link to the Fusion360
model.https://a360.co/3phrfI6I've made no edits to the above. simply did the
import.The model could use some reorganization. It is just a linear list of
partswith no hierarchy but unlike STL files the exact shape of the parts
ispreserved.Thanks again.ChrisOn Wed, Dec 1, 2021 at 9:33 AM John Dammeyer
<jo...@autoartisans.com> wrote:> Chris,>> This was my starting point. The step
files aren't available in that> link. The STLs have been converted although
some badly. Still working on> getting better step files from STL.>>>
https://howtomechatronics.com/how-it-works/what-is-strain-wave-gear-harmonic-drive-a-perfect-gear-set-for-robotics-applications/>>
I don't have the larger 47x35 bearings yet so I subbed in a 47x20.> Without
two bearings there will always be a bit of wiggle there. I found> only two of
the 5x16x5 in my random bearing box. I have 10 of those on> order too. For
now I recreated the wave generator to just use two> bearings.>> I have a tube
of 11mm bearings that when doubled up (or maybe not) can be> put closer
together creating less of a point source bend that the single> bearing does.
That might fatigue the plastic less.>> Also turning the hub that goes through
the bearing out of metal and making> the companion mounting plate for the cup
out of metal would allow a coupler> shaft through from the wave generator disk
to the centerline of the drive> bearing. This would likely also clean up any
wobble from thin printed> plastic.>> John>>>> > -----Original Message-----> >
From: Chris Albertson [mailto:albertson.ch...@gmail.com]> > Sent:
December-01-21 9:13 AM> > To: Enhanced Machine Controller (EMC)> > Subject: Re:
[Emc-users] Harmonic Drive> >> > John,> >> > Looks like I'm finding this thread
late. Where are the design files for> > this harmonic drive?> >> > On Tue, Nov
30, 2021 at 11:22 PM John Dammeyer <jo...@autoartisans.com>> > wrote:> >> > >
I've added a photo.> > >
www.autoartisans.com/harmonicdrive/HarmonicDrive-8.jpg> > >> > > The new wave
generator pieces puts the bearings 1mm further out. Was> also> > > able to
bring it a bit closer to the motor so the bearings now sit in> the> > > middle
of the fixed spline gear.> > >> > --> >> > Chris Albertson> > Redondo Beach,
California> >> > _______________________________________________> > 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>-- Chris
AlbertsonRedondo Beach,
California_______________________________________________Emc-users mailing
listEmc-users@lists.sourceforge.nethttps://lists.sourceforge.net/lists/listinfo/emc-users
_______________________________________________
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users
