Reaction wheel assembly

February 12, 2023 BuildIts Feed Machining Robots

Still needs a motor, of course, but it's taking shape

Someone asked what the step on the inside of the reaction wheel was for:

Comments from Blogger

Anonymous — February 12, 2023 at 02:55 AM

Can't wait to see test results :) How's the cg on the reaction wheel?

Anonymous — February 12, 2023 at 09:51 AM

Awesome it looks super fly ;)

Tim Blakely — February 12, 2023 at 09:33 PM

Those are some tiny teeth (or it's just bigger than it looks:). GT2?

Anonymous — February 13, 2023 at 04:12 PM

With this linear application would be interested to hear you opinion on roller screws for torque dense linear actuation (what Tesla bot is using). Seems like they check the boxes for very high force density and speed (comparable to hydraulics). I know you did a lot of work on the custom proprioceptive actuators for cheetah, which was all rotary - do you see any downsides w.r.t impact mitigation or other areas for the roller screws? (cause they seem pretty great :) )

Ben Katz — February 15, 2023 at 02:27 AM

yep, 2mm pitch gt pulley