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Re: what motor did you use(arm)
When building our arm we first thought about using the Keyang motors. However, after a little testing we discovered that they are not as strong as their aluminum housings make them appear... The Keyangs contain little plastic gears, which are easily broken.
Our decision then became to build a worm-gearbox for the Big CIM and run our arm off of that. The gearbox would be made entirely from metal to limit the chance of anything breaking.
Our manipulator weighed a lot this year - roughly 10 lbs. But we didn't really need much arm power! We balanced the weight of the manipulator with a gas piston. If we had wanted to we could have used a tiny banebots planetary! But the big CIM gave us lots of extra power.
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"Cooperation; because life is a team sport" -Philip J. Fry
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