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  1. #1
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    Mar 2014
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    957

    Let's build some ISO20 spindles

    Unfinished pull stud grippers.

    Sent from my MI 5s Plus using Tapatalk

  2. #2
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    Re: Let's build some ISO20 spindles

    It took some time to finish the first gripper because I was busy with other things but here it is. Jaws made from ck45.

    Sent from my MI 5s Plus using Tapatalk

  3. #3
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    957

    Re: Let's build some ISO20 spindles

    And here I am on the design at the moment.

  4. #4
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    Mar 2014
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    Re: Let's build some ISO20 spindles

    What is the correct angle for ISO20 taper? I mean what the angle of the spindle taper should be?

  5. #5
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    Jun 2007
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    3658

    Re: Let's build some ISO20 spindles

    um. shoudlnt that have been the first step here?



    taper for ALL steep taper type tooling, regardless of size is 7 in 24.

    which means, your profile reference points for angle are are 3.5 units radially, 24 units axial. with an opening of 22.225mm (7/8") diametre.
    wotzBotz

  6. #6
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    Re: Let's build some ISO20 spindles

    Soo, does that make 16,5943?

  7. #7
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    Re: Let's build some ISO20 spindles

    i hope not. your tools will fall out.

    it should be half that per side.

    i assume you need the actual angle for manual lathe?
    wotzBotz

  8. #8
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    Re: Let's build some ISO20 spindles

    Hi again,

    It's a CNC'ed lathe.

    According to my calculation the angle of the line is 188.29715° however, I just tried to cut the taper on aluminium but it is narrower on the large size so there is a little play on the small side. What did I miss?

  9. #9

    Join Date
    Aug 2019
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    274

    Re: Let's build some ISO20 spindles

    AL is not cheap :/ Can we see your sketch's dim or part's pmi?

  10. #10
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    Jun 2007
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    3658

    Re: Let's build some ISO20 spindles

    al is cheap AF :P
    better to screw that up than A2

    this is also why you dont use angles. use the 7 in 24 measurements.

    difficult to know what has gone wrong, without knowing you use 7 in 24 to start (and not some rounded off angle)
    wotzBotz

  11. #11

    Join Date
    Aug 2019
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    274

    Re: Let's build some ISO20 spindles

    Quote Originally Posted by ihavenofish View Post
    al is cheap AF :P
    better to screw that up than A2
    haha true. To clarify my comment I would have done that rough fitting test with a cheap'er composite, wax or hell.. an old piece of wood maybe
    ps. please never tell my wife where are her ikea candles, she'll destroy me. She still wonders where they are

  12. #12
    Junior Member
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    Jun 2007
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    3658

    Re: Let's build some ISO20 spindles

    you must work at one of the spindle factories ive talked to.....
    wotzBotz

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