pic: Poly-carbonate Gearbox Plate

[Joe G.]

Originally Posted by Munchskull

I definitely can/will/did remove the lightening holes. I can fit a bushing if I have to, I just wanted to check before if got them.

I would tend to agree with Chris, that I wouldn't even go as far as to swap from a ball bearing in an application as crucial as a drivetrain. Just use a mount plate like this, you'll be much better off.

[Munchskull]

I thought as much. My belief has been to design dangerously but build safely. I will see if a bronze bushing will work. We have two extra gear box's that would use this plate, I think that I will make and install one with a bushing and run the gearbox for a good two hours on full checking in at ten minute intervals (don't worry someone will be in the room) and take picture for records. while it may never go on a robot it would be a great learning experience for designing with plastic.

[Dunngeon]

Originally Posted by Munchskull

I thought as much. My belief has been to design dangerously but build safely. I will see if a bronze bushing will work. We have two extra gear box's that would use this plate, I think that I will make and install one with a bushing and run the gearbox for a good two hours on full checking in at ten minute intervals (don't worry someone will be in the room) and take picture for records. while it may never go on a robot it would be a great learning experience for designing with plastic.

For that to be a realistic test, the gearbox must be put under loads similar to what it will see on an frc robot. Testing it as you described, with no load, will not expose any potential problems fully