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Re: Other robots?
The choice for electronics probably depends on how much he wants to learn...for example, my brother is in the middle of designing a 4 channel speed controller to run on 48v and take a vEx transmitter tether output to power our underwater robot. If your friend doesn't want to get that deep into it, then he'll have to figure out just how much power he needs from the motors, and buy appropriate speed controllers (banebots has several that are smaller/less expensive than the Jags or Victors).
For the robot structure...you'd be amazed what you can do with plywood if you spend a bit of time designing. Quick, cheap, tough, light.
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