[Joe Johnson]

First, whoa! that's some nice nice engineering.

Second, thanks for the GT3 tip. As I have said elsewhere, I have not made the transition to belts yet (from chain and gears -- I'm old school like that), but I can see the writing on the wall. It's nice to be able to learn on you dime.

Third, more questions.
I am always puzzled when folks tell me a fps and don't give me the size of the wheel or the ratio from the motor to the wheel. What do I do with that? If you have 3ft drive wheels it means one thing, if you are going with 2" wheels it's a completely different beast.

So... what size wheels to you have? And what are the ratio from motor to the wheel?

Also, is that hex shaft peeking out go to a direct drive live shaft (that drives the wheels) or do you have another belt/chain/gear stage between the wheel axle and the hex output shaft?

Also, can you just break it down to the gearbox I'm looking at? What are the ratios from the motor shafts to the output shaft?

Great job. Nice bit of work there.

Dr. Joe J.