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Thread: Threading

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  1. 05-10-2006, 05:59 PM #1
    brtlatjgt
    brtlatjgt is offline Registered
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    Sep 2003
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    Threading

    We need to cut a .5 tpi thread. Our lathe only goes down to 1 tpi. Is it possible to somehow change the gearing to achieve this? Anyone know how to calculate this?

    Thanks in advance
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  2. 05-10-2006, 07:15 PM #2
    fkaCarel
    fkaCarel is offline Registered
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    Apr 2006
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    Normally with a swinging gear train you can create anything. One driving gear has to be doubled. 1tpi --> .5 tpi is just doubling the speed of the screw.

    Carel
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  3. 05-11-2006, 04:08 PM #3
    Rustybolt
    Rustybolt is offline Registered
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    Jan 2006
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    Try replacing the leadscrew gear with one 1/2 the value.
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