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IndustryArena Forum > MetalWorking Machines > Benchtop Machines > Mini Lathe > How can I determine if the problem is the collet chuck or the collets?
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  1. #1
    Join Date
    Nov 2009
    Posts
    4415

    Re: How can I determine if the problem is the collet chuck or the collets?

    I dont meant to be rude but do you have the collet installed into the nut correctly (prior to insertion in the taper)? The collet will snap into the nut.

    If the collet is installed in the bore and then the nut tigthened down it will never sit right nor get enough thread engagement to be secure.
    A lazy man does it twice.

  2. #2
    Join Date
    Sep 2006
    Posts
    509

    Re: How can I determine if the problem is the collet chuck or the collets?

    Quote Originally Posted by Fastest1 View Post
    I dont meant to be rude but do you have the collet installed into the nut correctly (prior to insertion in the taper)? The collet will snap into the nut.

    If the collet is installed in the bore and then the nut tigthened down it will never sit right nor get enough thread engagement to be secure.
    +1 on this suggestion - especially based on this comment from your original post "With the collet nut tightened down, I can see that the front face of the collet is not parallel to the front face of the nut. " When the collet is inserted in the nut correctly it should be very close to flush with the face of the nut.
    Mike

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