Never Do This, and Other Good Ideas Gone Bad

[Jon Stratis]

Originally Posted by Jared341

Relying on gravity to do anything other than to give your robot weight. If it moves down (an arm, an elevator, a ball in a hopper), make it powered.

I would argue with this one... If designed correctly, you can rely on gravity. The elevator we built in 2008 was powered up, and gravity down, and the only time it failed to work as anticipated was when the motor literally broke off its mountings at a pre-ship event. Other than that, it always went up AND down when we told it to, at a consistent, reliable speed.