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hedons

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I am looking for some help designing a gear for an invention of mine. I know gear design basics, but this is a little beyond what I know. Any help would be greatly appreciated.

The needed gear (to be made from plastic) is part of a toy and will be under very little stress. For my prototype, I will be making a 3D solid model in AutoCAD and will export it for fabrication via stereo lithography.

Here are the parameters

1. The two gears need to be identical.

2. They need to have a pitch diameter of approximately 2".

3. 11 Teeth per gear is preferred.

4. The axis of each gear must be at a 48 degree angle to the other.

5. The two gears must also mesh at a 12 degree angle to each other on an axis that I can best described as a "twist" in the way the two gears meet up.

Thanks for your help.

-Glenn