Another batch of furuta pendulums

BuildIts in ProgressPendulum

 I did another batch of Furuta pendulums and took a timelapse of the assembly:


These were done in a bit of a hurry, and nothing was changed from last time.  At some point I'll probably do a refresh of the design, though.  After building 16 of these, I have a bunch of ideas about things I'd like to do differently, and I've gotten a few feature requests from the recipient as well.  


And now, back to the other things in the pipeline.

Comments from Blogger

Anonymous — October 28, 2020 at 05:48 PM
Thank you for showing this. So much tea ;)
Anonymous — October 28, 2020 at 06:07 PM
Do you give these as gifts or sell them somewhere? I can't imagine you'd need 16 for personal use.
Ben Katz — October 28, 2020 at 11:06 PM
They were built for the controls department at a university.
Anonymous — November 13, 2020 at 01:55 AM
Can you elaborate on what you were looking to do differently in a redesign? Inspired by your blog and wanting to learn more about controls, I am taking a crack at a Furuta pendulum design.
Ben Katz — November 13, 2020 at 03:09 AM
Just things to improve manufacturability - motor, encoder, and slip ring related mostly.
Anonymous — November 13, 2020 at 04:32 AM
I see. Thanks for the reply.
Anonymous — June 28, 2021 at 10:19 AM
Could you tell me how each Furutapendulum controller has its sampling time(seta,phi) and control cycle(Hz?)?
Mohsen — November 17, 2021 at 05:42 PM
Doesn't the wire coming down from the pendulum encoder get super twisted as the base rotates?
Ben Katz — November 18, 2021 at 12:28 AM
There is a slip ring.