A question for the chuckists

  1. 8ob

    8ob Forum Supporter

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    A question for the collective. I am struggling to find a tilting rotary turntable with a three jaw chuck that has bolt in jaws. What is the correct name for this type of chuck? Help on this or where I can find a tilting rotary table with this type of chuck would be much appreciated :hug:

    Bob



    [​IMG]
     
  2. sako243

    sako243 Member

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    If you search for Shars (the name on your picture) they don't seem to be called anything special.

    Any reason why they have to be bolt in?

    Most tilting tables I've seen just have a back plate so you can bolt what you want.

    E.g. https://www.ebay.co.uk/i/362011676158
     
  3. Seadog

    Seadog Forum Supporter

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    Try searching for 2-piece jaws.
     
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  4. Brad93

    Brad93 M J B Engineering

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    Yeah they’re just two piece reversible jaws.
     
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  5. 8ob

    8ob Forum Supporter

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    I need to make a set of bolt in jaws for a piston fixture a bit like the one below. Its for machining valve pockets into piston crowns .

    [​IMG]
     
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  6. Brad93

    Brad93 M J B Engineering

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    I see.
     
  7. Brad93

    Brad93 M J B Engineering

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  8. northwest

    northwest Member

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    I would give Barry a call at Gloster Tooling EBAY STORE and see what he has in stock or what is coming into stock. I have bought some excellent quality chucks from him in the past and I strongly suspect the HDC chucks have something to do with Bison. Best deal I ever got was the three jaw on a 1-4 camlock. All steel two piece jaws, lovely thing and very accurate. <sigh> those were the days....
     
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  9. Shox Dr

    Shox Dr Chief Engineer to Carlos Fandango

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    Can you not make a fixture like I did for the sunbeam pistons
     
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  10. Kram

    Kram Member

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  11. 8ob

    8ob Forum Supporter

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    Thats worth a try :thumbup:

    Just looked, nice work Mr Shox but I will be doing dozens of V8 pistons at a time and thought set up would be much quicker, accurate and repeatable with this set up.

    Thats the kind of chuck but a bit spendy, what do you mean by bore out a split collet?

    Bob

    piston chuck.jpeg
     
  12. Brad93

    Brad93 M J B Engineering

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    Just buy a bison and know you’ve got a quality chuck
     
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  13. dobbslc

    dobbslc Forum Supporter

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    What's @8ob up to now? :scared:
     
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  14. 8ob

    8ob Forum Supporter

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    Went shopping a while ago and need to start nailing things together as soon as the mancave extension is finished:laughing:

    This is only a fraction of it :scared:

    [​IMG][​IMG]
     
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  15. Kram

    Kram Member

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    Bore a peice of aluminium to the piston OD and put a slit in it. It will hold the piston better than chuck jaws and can go in normal chuck.
     
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  16. roblane65

    roblane65 Member

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    What V8 are you building ? I love V8's;)
     
  17. 8ob

    8ob Forum Supporter

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    I see what you mean but it wont work because the pistons are not round, they are oval . Thats why they need to be gripped in the ring land, its the only place on the piston that is round.

    Bob
     
  18. 8ob

    8ob Forum Supporter

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    Small and big block fords.
     
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  19. roblane65

    roblane65 Member

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    going in anything special !
     
  20. Parm

    Parm Let The Games Commence

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    I’ve got a 3 jaw chuck at home with holes drilled like that. Chuck is between 16 and 20” diameter and the holes are about 20mm diameter. They had some sort of threaded conduit

    yours if you want it
     
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