Mechanics and Construction > Mechanics and Construction

First attempt at a robotic arm! Suggestions for base?

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Bciaren:
OK, so here's my base thus far!




Anyway, the problems I've been facing with this base is that it's all wobbly once I start attaching the arm!  People suggest I install rollers, but I don't have any idea how to actually do that!  I'm doing small scale here (1/8" thickness), any suggestions?  Or better yet, a direction?   

nanotechopolis_gr:
you should install rollers because otherwise your arm it will not has balance , check out the shematics ( i am not good at paint  :P )

waltr:
Maybe a Lazy Susan bearing.
http://www.amazon.com/Susan-Bearings-Thick-200-lb-Capacity/dp/B0006LBVDI

Bciaren:
Wow!  I am going to check that lazy susan bearing out!  Thanks!

Fr0stAngel:
You could use a bigger servo horn... or perhaps a attach a support plate to the servo horn so it has more area under the base, and takes up force more evenly from the top

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