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IndustryArena Forum > WoodWorking Machines > DIY CNC Router Table Machines > ER20 collet chuck nut is too short?

Thread: ER20 collet chuck nut is too short?

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  1. 10-08-2019, 08:31 PM #1
    hsato
    hsato is offline Member
    Join Date
    Oct 2019
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    ER20 collet chuck nut is too short?

    Hello,
    I'm new to here and new to CNC. Apologize in advance if I'm asking too basic questions.

    I'm working with a wood working CNC from Laguna, swift series. It has a water cooling spindle with ER20 chucking.
    This collet chuck nut turns only 2-3 revolution to get snug.
    Is this normal only 2-3 threads are working to hold a bit?

    I'm asking this because someone said that he cross threaded and ended up to replace entire spindle...
    Want to avoid that.
    Also so many unused thread on spindle as you see in attached pic.
    Is this chucking nut too short? or I'm using too long sleeve etc.?

    Best regards,
    Attached Thumbnails Attached Thumbnails IMG_2026.JPG  
    Last edited by hsato; 10-09-2019 at 03:50 AM.
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