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Three Jaw Chuck Video

Discussion in 'A BEGINNER'S FORUM (Learn How To Machine Here!)' started by RVJimD, Sep 13, 2017.

  1. RVJimD

    RVJimD United States Active User Active Member

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    I made a video of my g0752 lathe about rotating the jaws from one position to the other to compare and observe the accuracy of each configuration. I thought somebody might get something out of it, probably me more than anyone, especially if you guys watch it! Remember I'm still a new hobby machinist and I'm most definitely learning as I go, so don't hesitate to help educate me.

    My test bar was a simple piece of scrap 3/4" steel from the hardware store.



    Jim
     
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  2. Ulma Doctor

    Ulma Doctor Infinitely Curious Active Member

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    Hi Jim,
    if you start with a precision ground rod to indicate against, you'd get a more accurate indication of the chuck runout.

    Steffan Gottswinter on youtube, took a cheap chinese chuck and made it nearly perfect.
    a secondary thing he did was to take a couple thousandths off the chuck register, and used an indicator and test bar and a copper tamper to set the chuck run out to near zero
    if i can find a link, i'll post it
     
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  3. Ulma Doctor

    Ulma Doctor Infinitely Curious Active Member

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    here is the video i was talking about:
     
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