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Unread 04-02-2007, 17:18
Lil' Lavery Lil' Lavery is offline
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Wink Re: Planetary Gearbox Possibility?

Quote:
Originally Posted by ThatIndianKid89 View Post
huh.

thanks for that. lol. That actually helps us out a bit. Do you know off-chance what kind of fps we can get off of the 2.5" hooked up w/ the planetary? (this is all for our drivetrain by the way)
It depends on if/what reduction you have after the gearbox, and what size wheels/pulleys you are using. But, the Banebots transmission has a 12:1 reduction (can be changed to 16:1 with a kit from Banebots), and the free speed of the 2.5" CIM is 5500 RPM. Under drive-train load, you can probably expect around 4320-4400 RPM. If you don't do any further reductions and are using the 6" Kit of Parts wheels, that would translate to about 9.4 (4320 rpm/60 = 72 rps /12 = 6 rps*6pi=113.094 ips/12=9.425 fps) feet per second (probably a bit lower depending on how inefficient your drive system is).
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Last edited by Lil' Lavery : 04-02-2007 at 17:21.