Updated Hip Linkages

A project log for Tension Biped - A new take on a 9g Servo Walker

- A new take on a 9g Servo Biped Walker

Hooptie J 08/19/2015 at 18:092 Comments

Continuing basic range-of-motion checks, i noticed that the linkages for the hips would hang up on the hip mounts, did a minor redesign- it got rainy and humid here yesterday, so my 3D printer got really finicky- it only took 3-4 tries to get the linkages printed, but finally, success.

New Hip Linkage - Slimmed for clearance.

And installed on Mk3.


Radomir Dopieralski wrote 08/27/2015 at 11:22 point

I wonder, have you considering using nylon or acrylic bolts, instead of metal ones? I recently replaced the metal bolts with acrylic in one of my robots, and it's so much lighter! And lighter means less force needed to move it and less inertia.

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Hooptie J wrote 08/30/2015 at 09:16 point

One of my aims was to use only stuff i had in my "Project pile" already - so my source for "hardware" has been the random coffee can on my workbench.

I'd consider nylon hardware for some of the parts, like the front bulkhead there, but i probably wouldnt use it on those hip linkages- after actually power it up and testing, i managed to warp and crack a servo horn there, not sure if plastic hardware would be the best plan.
My first investment however is more likely to be in an Arduino micro/mini, a battery & some 2.4ghz transceivers so i can eliminate the tether.

after adding battery weight, i may very well be revisiting the "heavy hardware" question though.

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