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Unread 14-01-2011, 09:02
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AKA: Mr. D (Dick DiPasquale)
FRC #0241 (Pinkerton Robotics)
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Join Date: Feb 2009
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Re: Tetrix DC Drive Motor W739083 dynamometer data

Great information on motors/drivetrain for the minibot! Thanks!

Some rough analysis by FIRST Team 241 of the video at the Kickoff: The running bot seemed to have:
1) direct drive
2) 3" wheels
3) two motors


It also seemed to climb the entire length of the tower in just under 5 seconds.

That would seem to imply PI*3" per revolution = 9.4" or 12-13 revolutions in 5 seconds or about 144 RPM under load of the minibot.

We don't have the ftc-020 First Choice kit yet and the abbreviated list of parts does not detail the wheels included. I see a grainy picture associated with the kit but I really could not make out 4" wheels.

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We plan to run experiments as soon as we get the kit. Hopefully we will get them soon.
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