Quote:
Originally Posted by billbo911
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.
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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