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Thread: Helical milling clamps

  1. #1
    Supporting Member Occasional machinist's Avatar
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    Occasional machinist's Tools

    Helical milling clamps

    These are a copy of a clamp system more commonly found in Europe, but an interesting build anyway.

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  2. The Following 11 Users Say Thank You to Occasional machinist For This Useful Post:

    allenz (Dec 29, 2023), blkadder (Dec 29, 2023), Improvised DIY (Dec 21, 2023), Jon (Dec 20, 2023), mklotz (Dec 25, 2023), mr mikey (Dec 29, 2023), nova_robotics (Dec 20, 2023), Ralphxyz (Dec 29, 2023), rgsparber (Dec 22, 2023), rlm98253 (Dec 29, 2023), trevor_60_r (Dec 30, 2023)

  3. #2
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    nova_robotics's Tools
    That's great. I've never seen that style of clamp before. I like that way better than the normal table clamps that I'm used to.

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  4. #3
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    Thanks Occasional machinist! We've added your Helical Milling Clamps to our Clamps category,
    as well as to your builder page: Occasional machinist's Homemade Tools. Your receipt:




  5. #4
    Supporting Member Improvised DIY's Avatar
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    Improvised DIY's Tools
    Very well executed and educational.

  6. #5
    Supporting Member Occasional machinist's Avatar
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    Occasional machinist's Tools
    Glad you enjoyed it.

    A friend of mine predicted that a lot of people would find this interesting as there is not much helical milling content out there. Judging from the response so far, he was right.

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    rgsparber (Dec 23, 2023)

  8. #6
    Supporting Member rgsparber's Avatar
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    rgsparber's Tools
    This is a challenging and fun project.

    In his last example, the regular step clamp faces the work and the bottom collides with it. One workaround is to use the large triangle step block plus a small triangle step block. Place the small step block, up-side-down, on the larger step block. You will have a movable horizontal surface. Face the larger step block at 90 degrees from the stock. Then rest the tail of the hold-down clamp on the small step block. Secure with a hold-down bolt.

    Boring, but it works with the available parts in my hold-down kit.

    Rick
    Rick

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    Philip Davies (Dec 29, 2023), trevor_60_r (Dec 30, 2023)

  10. #7
    Supporting Member Occasional machinist's Avatar
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    Occasional machinist's Tools
    I've used a small step block on large and some times that has gotten me out of trouble. These were made because I wanted to try them out (and I always find the 'how do you make them' question interesting), and I have a number of work surfaces (rotary tables for example) that haven't got the space for a more conventional clamping arrangement



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  11. The Following User Says Thank You to Occasional machinist For This Useful Post:

    phred (Dec 29, 2023)

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