Rocker-bogie joint should use bushings instead of bearings

[Achllle]

There's too much play from the bearings in the rocker-bogie assembly causing the rocker to be a bit flexible which can make the rover look crooked. A bushing would be cheaper and provide a tighter fit. Bushings actually perform better under higher loads when speed are low (which they are)

GoBilda doesn't sell bushings as of now so a solution would involve finding those elsewhere.

[Achllle]

A few videos illustrating the issue and effect.

osr-bearing-wobble.mp4

osr-bearing-wobble-effect.mp4

[Achllle]

Videos don't seem to work (?)
https://photos.app.goo.gl/qutyniZaA2NoGsm7A
https://photos.app.goo.gl/wWKPRaooJHBW1sgFA

[davidgmolnar]

Hi, did you find an appropriate bushing?

[Achllle]

No, GoBilda is not planning on adding bushings to their inventory as far as I'm aware and the preference is to stick with as few suppliers as possible to make the ordering process doable. However the issue is somewhat remediated if the control arms are attached firmly. This is hard to do right with the hurricane nuts but substantially easier with the goRail 5-hole nut.