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Thread: DIY Chuck Insert Rings....

  1. #1
    Join Date
    Oct 2006
    Tokyo Japan

    DIY Chuck Insert Rings....

    When I do the small square bowls I enjoy so much, I've started to use some chuck insert rings, and I make them myself, because I'm cheap, and they are easy to make.

    Attachment 44181
    I use cheap cutting board for this...

    Attachment 44182
    I cut pieces that are 5.5 cm square

    Attachment 44183
    Mark the center and then with a forstner bit I drill about 1/4" deep (6mm)

    Attachment 44184 Attachment 44185 Attachment 44186
    Then using my pin jaws on my Nova G3 chuck, I mount and turn the pieces round, for this whole operation, I only use my parting tool.

    Attachment 44187
    In this case just about 5cm, which is just over what my SN2 chuck with the standard jaws will hold. Notice that I mount the piece with the hole from the forstner bit inside, towards the headstock of the lathe.

    Attachment 44188
    I turn it so the center piece pops out then I make the step that is about 1/4" deep or so, that will softly and gently grab the tenon on a work piece, without marking it up like the regular steel jaws would.

    Attachment 44189
    I then remove it from the lathe and cut a slot in it, the piece I remove is about 1/8" or so.

    Attachment 44190
    Back mounted in the chuck, you can see that if you put a tenon in there you can just snug up on it and hold it tight, while not marking the tenon.

    I learned this from Eli Avisera of Israel, it is a super cool little trick and dead easy to make a bunch of different sizes for different projects.

    The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.
    William Arthur Ward

  2. #2
    Join Date
    Oct 2006
    ABQ NM
    Cool idea. I'll stick it in the "handy tricks to know" file. I've got a couple sets of Nova soft jaws, but only recently tried them out. They worked great on an ebony finial so far. I've also considered making my own from a block of UHMD plastic I have on hand, but haven't had the need yet.
    When the going gets weird, the weird turn pro. - Hunter S. Thompson
    When the weird get going, they start their own forum. - Vaughn McMillan

  3. #3
    Join Date
    Oct 2006
    Tokyo Japan
    Yep, very useful, and you can, within reason, make them any size to fit any jawset, so if you need a set of jaws to grip something that is say 1" in diameter, but you only have jaws that go down to 1 3/4" you can make one of these rings to work like an adapter.

    I don't know how that UHMD stuff turns, I've not tired it, the cutting board turns easy, but you have to be careful, the strings from it often don't fly away, but kind of stick to the chuck, and that can get dangerous, so I stop the lathe fairly often, and clean the strings off the lathe.

    The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.
    William Arthur Ward

  4. #4
    Join Date
    Jun 2008
    GTA Ontario Canada
    Very good idea that Stu. Thanks for sharing and the how to tutorial.

    I was turning some cherry dowels to plug up some holes the other day and kept trying to figure out a way to do this without marring the good end of the dowel. I tried blue painters tape but its too soft and i did not feel it clamped safe. This is more like a collet so i will give it a try. Great idea. Thanks for mentioning the source, now we start to see how he influenced everyone.

  5. #5
    Join Date
    Jul 2008
    Hardinsburg, KY
    This is one of those things that is so simple that we want to bang ourselves in the head and say, "Why didn't I think of that?". Thanks for sharing it with us Stu. Definately one for the "Just In Case" file.
    Working flat so I can play round,
    Doug Miller

    Repentance Is The
    Prerequisite For
    Gods Forgiveness

  6. #6
    Join Date
    Dec 2006
    Goodland, Kansas
    Cool Stu. Thanks for sharing.
    Bernie W.

    Retirement: Thats when you return from work one day
    and say, Hi, Honey, Im home forever.

    To succeed in life, you need three things: a wishbone, a backbone and a funnybone.

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