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Experiments with active gyros (Patreon)

Published:
2021-04-26 09:26:11
Imported:
2026-06
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Content

Here's next week's video, early for Patrons. This is another thing I've been wanting to try out for a while - I was going to try this when I built BB-8 V2 a few years ago, but I didn't use this method in the end.

Next week's vid is a taller more advanced version of this with two gyros and wheels for it to drive on. 

Pretty sure I could use this in a lot of robot projects - I'd really like to attempt another biped at some point.

Files

Previews only

Using Active Gyroscopes to Balance Robots - PREVIEW VERSION

I've built many robots that use solid state gyros and accelerometers to make them balance - mainly two wheel balancing robot and ball balancing robots. But how can we use physical spinning gyroscopes to stabilise or make robots balance? I've built a test device which uses a solid state IMU to measure the angle of roll of the whole device, and then tilts a physical spinning gyro powered by a brushless motor, so cause a perpendicular force. You can support me on Patreon or buy my Merchandise: *************************** Patreon: https://www.patreon.com/xrobots Merchandise: https://teespring.com/stores/james-bruton *************************** Affiliate links - I will get some money of you use them to sign up or buy something: *************************** Matterhackers 3D printing supplies: http://www.matterhackers.com?aff=7500 Music for your YouTube videos: http://share.epidemicsound.com/xrobots *************************** Other socials: *************************** Instagram: https://www.instagram.com/xrobotsuk Facebook: https://www.facebook.com/xrobotsuk/ Twitter: https://twitter.com/xrobotsuk *************************** CAD and Code for my projects: https://github.com/XRobots Huge thanks to my Patrons, without whom my standard of living would drastically decline. Like, inside out-Farm Foods bag decline. Plus a very special shoutout to Lulzbot, Inc who keep me in LulzBot 3D printers and support me via Patreon. HARDWARE/SOFTWARE Below you can also find a lot of the typical tools, equipment and supplies used in my projects: Filament from: https://www.3dfuel.com/ Lulzbot 3D Printers: http://bit.ly/2Sj6nil Lincoln Electric Welder: https://bit.ly/2Rqhqos CNC Router: https://bit.ly/2QdsNjt Ryobi Tools: http://bit.ly/2RhArcD Axminster Micro Lathe: http://bit.ly/2Sj6eeN 3D Printer Filament: http://bit.ly/2PdcdUu Soldering Iron: http://bit.ly/2DrNWDR Vectric CNC Software: http://bit.ly/2zxpZqv Why not join my community, who are mostly made up of actual geniuses. There’s a Facebook group and everything: https://www.facebook.com/groups/287089964833488/ XROBOTS Former toy designer, current YouTube maker and general robotics, electrical and mechanical engineer, I’m a fan of doing it yourself and innovation by trial and error. My channel is where I share some of my useful and not-so-useful inventions, designs and maker advice. Iron Man is my go-to cosplay, and 3D printing can solve most issues - broken bolts, missing parts, world hunger, you name it. XRobots is the community around my content where you can get in touch, share tips and advice, and more build FAQs, schematics and designs are also available.

Comments

Anonymous

Great video, really enjoying the recent content like this and the cycloidal/harmonic drives. Looking forward to next week's version!

XRobots
>>58517791

Thanks, I'm trying to work through all the things I've never tried but really should have!

Anonymous

Looks cool, you must have so much fun doing this stuff. Do you get many print fails?

Anonymous

is the free movement of the ball bearings necessary for (or enhancing) the gyroscopic effect? because you can see they have a lot of free movement whenever the disk changes direction. For example it seems at 7:01 the base spins because the motor locks from not being backdriveable and the inertia of the ball bearings spins the top (unless im misunderstanding the effect). and this added movement might be making it more unstable. from my understanding , a spinning wheel also displays gyroscopic procession and the ball bearings are small and only used to minimize friction

XRobots
>>58527095

I think they stick in one place once it's up to speed, but it's probably not balanced. In part 2 I solve this by making individual pockets.

Brian Brunswick

Fantastic, always wanted to get something like this done! Imagined a really tall thin walking stick like robot that just hopped and otherwise gyro balanced.

Anonymous

Cool! Would be nice for people who want to do more research if you mention it by it's name: "Control Moment Gyro".

Anonymous

My robotics team was using a flywheel this year. Even a carefully printed wheel wasn't perfectly balanced. We ended up using a balancer that people use for propellers on model airplanes. It's a static balance (as opposed to a dynamic balance) but it did help reduce the vibration. This is the one we used but there seem to be a bunch of similar ones out there. https://smile.amazon.com/gp/product/B0006N72Y8 It's also really important to get the wheel perfectly perpendicular to the shaft. That was a fixed height "thing" to measure from and feeler gauges. Then tighten bolts as necessary to pull it to be perpendicular.

XRobots
>>58563398

In part 2 I've made small pockets in the print for the ball bearings which helps a lot. My motors have large flat areas to bolt things down to which helps a lot.