Thread: How to make gears mesh properly.
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Unread 12-01-2004, 21:07
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Re: How to make gears mesh properly.
You should generally mesh the gears using the pitch diameter, so 1.5" would be correct. You do not want to go any closer than this for sure, so if you are worried about tolerancing you could make them a little bit further apart. Also, if it is a large gear ratio, then the tips of the gears will interfere, and two teeth or more will touch at a given time. This causes the gears to be loud and wear each other down. So you might want to add a couple thousandths. I suspect the real engineers will be able to provide better advice, which I am curious to hear since I'm designing a gearbox for RoboCup as well. I'll post how to actually calculate what distance to use if I can successfully interpret my "Machine Component Design" textbook.

- Patrick
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