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Unread 12-01-2011, 16:27
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Travis Hoffman Travis Hoffman is offline
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FRC #0048 (Delphi E.L.I.T.E.)
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Re: Minibot climb rate

Quote:
Originally Posted by billbo911 View Post
Did you get a weight on the 80 tooth gear? Or would I be close enough by extrapolating it from the 120 tooth?

By extrapolation I'm guessing the 80 tooth gear is 76.47 g.
I'm not in a position to do any more measurements today. Perhaps another can help out with additional measurements?

Is your math right? Gears are same thickness and have the same number/size of holes.

120T area = pi * ([120/32] / 2) ^ 2 = 11.045 sq. in.
80T area = pi * ([80/32] / 2) ^ 2 = 4.91 sq. in.

Density Ratio = 0.444

80T Weight estimate = 0.444 * 114.71 = 50.93 g
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Last edited by Travis Hoffman : 12-01-2011 at 16:43.