Thanks Al.
I had a feeling it wasn't a good idea from the start. However, at this stage in the game, where we have a real minimum of time, the Thursday before competition doesn't really afford us the chance to reengineer the whole thing. We're wedged into a corner as far as size constraints go, and we've used one of every powerful/geared motor on the robot already.
So if we want extra power for the arm, and we do, then we need to try to match uneven motors.
Like I said in my original post, we're talking about 1/2 of a revolution of the output shaft. Total. As long as we don't overheat the motors and we turn on the brakes in the victors to minimize the globe overspinning, we should be good. We'll check the keyang with the brake off - who knows maybe they'll be close to matching.
We'll check it out on Thursday running each motor seperately to make sure globe does stop quickly enough. Seperate victors are a good idea - but truthfully I'm not sure how we could do a quick and dirty measurement of the motor speed under load.
Thanks for all your input. This is where we sit back and do a little seat-of-the-pants engineering and hope it holds together
