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Unread 01-06-2014, 14:25
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Aren Siekmeier Aren Siekmeier is offline
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FRC #2175 (The Fighting Calculators)
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Re: Offseason WCD with 3 CIM inverted transmission design

Quote:
Originally Posted by Andrew Lawrence View Post
Also in the second iteration the idler gears will be bearing bore gears on dead axle shafts that extend through both plates in the gearbox.
I like this idea, giving the option to use these dead axles as another pair of standoffs holding the gearbox together.

However, tagging along with Roger and Jared, really pay attention to the mesh on those 4 gears meshing in a loop. You'll have to make sure the tooth offsets given by the interior angles (with alternating sign) add up to a whole number around the loop, so you get the correct mesh all around. But even with that, a small tolerance on gear placement could mean that the driven gear is only contacting one idler at any given time, or even that you still get a gear collision.
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