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Thread: Adjusting lathe speed lower

  1. #16
    Join Date
    Sep 2007
    Location
    Longview WA
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    27,312
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    1
    Quote Originally Posted by Rick Prosser View Post
    I posted a video of the drive on youtube if anyone wants to see my split pulley reeves drive in action.
    OK, that is a little different than what we had on the printing presses. Ours had two belts and four pulleys. The lever was attached to the mechanism of the two pulleys in between the two belts. Those were the pulleys that would change. The motor and driven end pulley would not change size.

    Same principle, different execution.

    jim

  2. #17
    Join Date
    Oct 2008
    Location
    Midlands of South Carolina
    Posts
    390
    I find it to be a neat concept for speed control.
    I understand how the different pulley diameters can control the speed, but I don't know how torque is impacted. Perhaps that has something to do with the print press design with 4 pulleys?

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