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Unread 24-03-2007, 21:49
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"Scale Electric Vehicle"
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Re: Banebots 42mm gearbox: Recommendations for use

Quote:
Originally Posted by squirrel View Post
There are two ways to look at this: either reduce the torque into the transmission (use a less powerfull motor) or reduce the torque load at the output of the transmission (further reduction and/or counterbalancing)

The FP torque IS what kills the final stage, when full load is applied.

Anyways, it's great to hear that the thing worked!
Yes, I should have worded it more carefully: the motor itself does not define how much torque is seen on the final stage, the load does too. (Especially in the range where the motor acts more like a speed source than a torque source, less than 1/2 the stall torque, which is where most arms reside on the torque-speed curve.) In the end, though, it is the motor which supplies the torque and breaks the gearbox.

Thanks for everyone's help with troubleshooting and posting your own experiences - good and bad. I said at the beginning that FIRST and Chief Delphi is the biggest, most knowledgeable consulting firm I know of and it definitely showed this year. Hopefully, BaneBots will take all of the data and stories and come up with an improved product for next year.
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