pic: Team 30 Dual-Motor Transmission

[Rob Colatutto]

Originally Posted by RobDeCotiis

sarahb,
dremeling off the gear only poses a threat to the motor of you're lazy. Make sure you don't get shavings inside the motor and i see no reason dremeling the gear off would cause harm. Cutting into the drill motor shaft slightly won't cause problems, unless you hack it to bits. Some people don't have presses, and honestly, you don't need one. The dremel works fine for removing the gear, and simple expansion/contraction properties of the metals will allow you to put the gear on. freeze the motor(or just the shaft, assuming you have liquid nitrogen in your chem lab ) and heat up the gear with a blowtorch and you'll be able to get it on, and when it cools down, good luck getting it off. Try to think a little more about reasoning before you post. You yourself have seen the motor ryan put the gear onto, you know it works fine, the motor isn't damaged, i don't really see what the problem is. anyway. beautiful looking gearbox, ryan. nice job

Team 30 forever
Rob DeCotiis

I'm no electrician here... but I would take a guess and say putting your motor in liquid nitrogen is probably not a very good practice if you want to have a working motor... Taking a blow torch to the gear could also severly weaken it. There is nothing wrong with having concern and giving advice against doing something that you know isn't the correct method doing the job. We are trying to learn about engineering and teaching others in FIRST, not about cobbing up a job that is easily done correctly.

Ryan, could you post up or pm me the gear ratios in there? It appears that you have the bosch motor pulling up atwood above its free speed. (also not a very good thing to do)