New Compliant Mechanism - Spherical Flexure Joint
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Patrick Barnes
Apr 29, 2021, 11:23:16 AM4/29/21
to Robots and Dinosaurs
Dan Collins posted about compliant mechanisms a little while ago,
I saw this neat research paper from Sept 2021 (what, time-travel?) discussing a new kind of flexure - where with nothing in the centre, a part can be constrained to just rotate about a point.
I saw this neat research paper from Sept 2021 (what, time-travel?) discussing a new kind of flexure - where with nothing in the centre, a part can be constrained to just rotate about a point.
Paper: https://www.sciencedirect.com/science/article/pii/S0141635921000726?via%3Dihub
Thingiverse: https://www.thingiverse.com/thing:4841850
I won't pretend to understand the geometry, but it looks simple - that all you need to design your own (see fig 4a) is align all the hinges of the flexure with that chosen point.
I won't pretend to understand the geometry, but it looks simple - that all you need to design your own (see fig 4a) is align all the hinges of the flexure with that chosen point.
Thanks to the internet rabbit hole, I found another cool video talking about compliant mechanisms here:
https://www.youtube.com/watch?v=97t7Xj_iBv0
and here's Dan Gelbart, complaining that his high-precision flexures have an error in the angstroms:
https://www.youtube.com/watch?v=PaypcVFPs48
https://www.youtube.com/watch?v=97t7Xj_iBv0
and here's Dan Gelbart, complaining that his high-precision flexures have an error in the angstroms:
https://www.youtube.com/watch?v=PaypcVFPs48
Enjoy!
-Patrick
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