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Thread: CNC Plasma Cutting in a Small Space

  1. #21
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    Hi Guys
    Have seen designs were the axis drive assembly (Motor, Pulleys, Belt and Spur Gear) had a pivot mount and a spring pulled this assembly (Spur Gear) towards the Rack taking out the backlash. Not sure if this would tend to make the movement jumpy or not? I have zero experience with this arrangement but have seen it used.
    Cheers
    Willy

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  3. #22
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    nova_robotics's Tools
    Quote Originally Posted by willyb View Post
    Hi Guys
    Have seen designs were the axis drive assembly (Motor, Pulleys, Belt and Spur Gear) had a pivot mount and a spring pulled this assembly (Spur Gear) towards the Rack taking out the backlash. Not sure if this would tend to make the movement jumpy or not? I have zero experience with this arrangement but have seen it used.
    Cheers
    Willy
    Yup. My CNC flame cutter is exactly like this. I had assumed it was so the gears could roll over crud and slag, but you're probably right about reducing backlash as well.

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    tmate3's Tools

    The Beginnings of the Torchmate Company

    For anyone interested in the beginnings of the Torchmate company, information on its early history can be found here:

    https://www.practicalmachinist.com/v...chmate-387482/



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    Last edited by tmate3; Mar 1, 2021 at 06:46 AM.

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