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Type: Posts; User: johnoder

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    You done yourself proud Joe.

    You done yourself proud Joe.
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    Good Going Joe. One way to get it done - you are...

    Good Going Joe. One way to get it done - you are ahead of me - I can write at length about making them, but never made one. :D
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    Wondering.. If it was in fact 8DP normal...

    Wondering..

    If it was in fact 8DP normal pitch, possibly Van Keuren's magic shown here would yield a pitch diameter using regular old .216 dia. (spur gear wires) wires in order to have something...
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    Extreme upper left corner .34202 is the sine of...

    Extreme upper left corner .34202 is the sine of 20 degrees and you multiply that by 8.

    OR .34202 TIMES 8 = 2.73616

    You divide that result that into 20 teeth times "pI". and 20 times pi =...
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    Aw come on fellas (and of course the gals) - its...

    Aw come on fellas (and of course the gals) - its all written down for us. Not sure about first image - but second is of course from Earle Buckingham - who has at least three volumes on the subject...
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    Might be helpful - but be prepared for some deep...

    Might be helpful - but be prepared for some deep wading

    In the second image go to the line about 2/3 of the way down the page to find a formula for "L"

    Pn is for Pitch normal, which is your 8DP...
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