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  1. 2nd September 2020, 02:27 PM #1
    rev
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    Default spherical clamp?

    I'm not into carving but have this item from someone (deceased) who was, and I'm not sure what to call it as I advertise it. Can someone describe it for me please? The closest thing I've found on the 'net is the Jerry Rig Ball Positioner. This thing came from England; it is heavy (about 6 kg) and has a 'sphere' of about 75-80mm and a solid stem (not tubular) of 300mm long and 38x38mm cross section. Looks like it is a serious bit of kit for very heavy duty work.
    Cheers, and thanks, in anticipation!

    IMG_0977.JPGIMG_0978.JPG
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  3. 2nd September 2020, 02:54 PM #2
    China
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    Looks like the makings of a carvers vice few pieces missing, mounting plate etc.
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  4. 2nd September 2020, 06:19 PM #3
    elanjacobs
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    Allows you to freely position the work however you want to.
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  5. 3rd September 2020, 04:31 AM #4
    Robson Valley
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    I agree with China.
    There's a temporary base plate missing which would be the interface with the carving.
    If the movement is very secure and steady, worth saving until some additional work can be found and added.
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  6. 3rd September 2020, 01:32 PM #5
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    All of 'em.
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  7. 3rd September 2020, 07:58 PM #6
    rev
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    Thanks for the help.
    Cheers
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  8. 7th September 2020, 02:51 AM #7
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    ClaudeF
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    I agree; it's part of a wood carving vise (work positioned). The solid bar is clamped to the workbench with some F-clamps, or clamped in a regular vise with the missing plate attached to the shaft on the sphere. The two bolts on either side of the ball are tightened to hold it in a specific position, or loosened slightly for repositioning. Here's a photo of mine in operation (different brand, but same principal). Mine is bolted to a piece of timber, which is clamped to the workbench. Can be portable this way.
    Claude

    IMG_3511.jpeg
    http://etsy.me/1CwgUHa
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  9. 7th September 2020, 09:06 AM #8
    BobL
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    Small version made from a Datsun 180B side mirror mechanism that I use in my electronics projects

    IMG_2337.jpg

    Larger Version designed to hold chainsaws.
    IMG_8958.jpg
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  10. 7th September 2020, 02:32 PM #9
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    GraemeCook
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    Quote Originally Posted by ClaudeF View Post
    I agree; it's part of a wood carving vise .....

    IMG_3511.jpeg

    Just realised, my 50+ year old fly tying vice has a similar ball-joint base.
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  11. 15th September 2020, 02:33 PM #10
    rev
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    OK. I've now got the base plates for it and am putting it up for sale on the market place.
    Thanks for everyone's input.
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