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 "at some point in the next six weeks you are going to start feeling like you are involved in a robot building contest. Then you are in serious trouble" -Dean Kamen - KenWittlief [more] |
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#1
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Re: Gear Spacing Help
You the "pitch diameter". Like you said, A rough rule is to use the sum of the two PD's and divide by 2. In some cases you need a few thousands of an inch more, but as long as you lube it properly, it willwork just fine with your formula.
Raul I forgot to mention that you can find PD if you now the "Diametral Pitch" of your gears - DP's come in standard sizes such as 32, 20 or 16. This represents the number of teeth / inch of diameter. So, you can find the PD like this: PD = Nt / DP (where Nt = number of teeth on a gear). Last edited by Raul : 07-01-2007 at 00:21. Reason: Added formula to figure out PD |
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#2
07-01-2007, 00:20
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Re: Gear Spacing Help
If this is 20dp, or 24dp, I have the catologue of all Martin gears (a common supplier), and would be willing to look up all the sizes you need. Either shoot me a PM or AIM me.
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