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Unread 29-02-2016, 07:46
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Re: STEM Quiz #1

Quote:
Originally Posted by MechEng83 View Post
Here's my MS Paint proof. I did the ratio in terms of radii of the gears.
Well done! Rep points awarded. (Remember, they're just dots!)

Quote:
Originally Posted by MechEng83 View Post
Great point about the 9:1 requiring half-tooth planets. I probably will avoid those for anything that has significant torque needs to avoid shearing teeth.
They aren't actually half tooth planets, but the teeth of these gears presumably had to be adjusted somewhat to make this work. While I haven't examined a 9:1 VP, my guess is that it has 32 slightly shortened teeth.
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