Quote:
Originally Posted by VerticalReality
I sure can. Our arm on our robot is going to be lifted up and down using a motor. The only suitable motor would be the Fisher Price motor so inorder to make it possible, we need to make the motor lock when the arm has reached a certain height because the weight of the arm will just bring it back down -quite fast.
Does that clear it up a bit?
Melissa W.
[Team 912]
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The higher the gear ratio between the arm and the motor the easier it will be be hold the arm's position. Of course the arm will also move much slower too. But that is the nature of engineering, pick your druther and go with it.
With a high gear ratio, you could add a brake to the arm mechanism somewhere. The closer to the motor the less force you need. I seem to remember WildStang using a servo to make a brake for their FPs one year, but as an Inspector I see so many robots I might be somewhat confused.
ChrisH