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  1. 13th January 2008, 06:34 PM #1
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    lubbing5cherubs
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    Question Question on this tutorial

    HI Guys, I was wondering if you can tell me is the wood being held in a jacob chuck. Is that right?

    http://www.angelfire.com/d20/mikesbobbins//birth.html
    bye Toni
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  2. 13th January 2008 06:34 PM # ADS
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  3. 13th January 2008, 06:44 PM #2
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    Hi Toni,

    I dont think it's a Jacobs chuck. The 3 jaws on the Jacobs cannot handle square stock. I suspect that they are pin jaws in a scroll chuck (like the Nova). I am sure I will be corrected if I am wrong.
    Chris
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  4. 13th January 2008, 06:47 PM #3
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    Yes Toni, that is a Jacobs chuck aka a standard drill chuck with a morse taper to fit in your headstock
    Cheers

    DJ

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  5. 13th January 2008, 06:48 PM #4
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    Looks like one, definately not nova pin jaws.
    maybe he's rounded the chuck end 1st?
    ....................................................................
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  6. 13th January 2008, 06:51 PM #5
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    Looks like an Engineer's Chuck to me...

    Attachment 64636

    Toni, I usually use a Jacob's Chuck for my bobbins, but I round off one end first so it can grip properly.
    I may be weird, but I'm saving up to become eccentric.

    - Andy Mc
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  7. 13th January 2008, 07:03 PM #6
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    like skew said round the end to fit in the 3 jaws of the drill chuck.

    3 into 4 dont go very well.
    Jim Carroll
    One Good Turn Deserves Another. CWS, Vicmarc, Robert Sorby, Woodcut, Tormek, Woodfast
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  8. 13th January 2008, 07:08 PM #7
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    Quote Originally Posted by Skew ChiDAMN!! View Post
    Looks like an Engineer's Chuck to me...

    Attachment 64636

    Toni, I usually use a Jacob's Chuck for my bobbins, but I round off one end first so it can grip properly.
    I stand corrected. I should have looked at ALL the pictures.
    Chris
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  9. 13th January 2008, 07:14 PM #8
    Skew ChiDAMN!!'s Avatar
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    Another trick is to cut an MDF disk into four segments, then nick the "points" off before screwing 'em onto a faceplate to make a jam chuck. This gives you a square hole to simply jam the end of the blank into.

    I did this way back when, before I bought my first scroll chuck.

    Tapering the cut ends will allow the same jam chuck to be used for a variety of blank sizes.
    I may be weird, but I'm saving up to become eccentric.

    - Andy Mc
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  10. 13th January 2008, 07:38 PM #9
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    WOW thanks for all the replies. And the advice regards rounding it up.
    thanks
    Toni
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  11. 16th January 2008, 05:19 AM #10
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    Hi chances are you are right and it is a jacobs chuck, i use one myself for doing Lace bobbins and they will take square stock, also about the chuck being on a morse taper, this can be danger and can fly out, it has happen to me and a few turners i know, tailstock end okay, not the head.
    Best is to have the morse left off and just use the jacobs in your main chuck like a nova, save a lot of time as well changeing chucks about.Chuck a chuck.... LB

    http://www.shapewood.co.uk
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