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Thread: Extra low profile milling clamps

  1. #1
    Raytonian's Avatar
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    Extra low profile milling clamps

    Randy Richard's post on YouTube inspired me to go further, making even lower profile clamps for not only just being able to clamp ridiculously thin stock to the bed but in addition to that, totally disappear into the T-slot when not needed. They are so low, they can be pushed to the other side of the table, under the vise when you're desperate enough. The clamped stock shown is 3mm plate which is probably less than practical.
    While my modification of Randy's version is not to his level of detail, with my method, there's no need for slotting the toggles as the pins allow the clamping bolts to swivel to the clamping angle.
    My dimensions are for the Bridgeport table and will of course have to be adapted for different slot dimensions. Bolt lengths are to be decided upon in practice and cut to optimum lengths.

    My sincere apologies if this was already done before as I've never seen it anywhere before and was to me, an original idea in my small world of reference.
    So please don't post if it already exists.
    Great fun to all of you who happens to find it useful!!

    Extra low profile milling clamps-img1.jpg Extra low profile milling clamps-img_2.jpg Extra low profile milling clamps-img_3.jpg
    Extra low profile milling clamps-img_4.jpg Extra low profile milling clamps-img_5.jpg Extra low profile milling clamps-img_6.jpg
    Low profile clamp.PDF

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

    Christophe Mineau (Sep 14, 2021), cognitdiss (Sep 14, 2021), DIYSwede (Sep 15, 2021), Home-PC (Yesterday), Jon (Sep 14, 2021), Moldyjim (Sep 15, 2021), Saltfever (Sep 15, 2021), schuylergrace (Sep 14, 2021), Sleykin (Sep 14, 2021), uv8452 (Sep 16, 2021), WmRMeyers (Sep 15, 2021)

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    Thanks Raytonian! We've added your Low Profile Milling Clamps to our Clamps category,
    as well as to your builder page: Raytonian's Homemade Tools. Your receipt:




  4. #3
    Supporting Member Christophe Mineau's Avatar
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    Great idea, thanks for sharing !
    What's the use of the through hole on the rounded end of the claw ?
    What angles did you give to the other end ?
    Cheers !
    Christophe
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    Supporting Member Saltfever's Avatar
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    "How low can you go" . . . I think you have won! I have never seen anything that can totally disappear into the T-slot when not needed. Thanks for posting a great idea.

    PS: are the thru holes the pivot point for rounding the ends?
    Last edited by Saltfever; Sep 15, 2021 at 01:31 AM.

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    Quote Originally Posted by Raytonian View Post
    Randy Richard's post on YouTube inspired me to go further, making even lower profile clamps for not only just being able to clamp ridiculously thin stock to the bed but in addition to that, totally disappear into the T-slot when not needed. They are so low, they can be pushed to the other side of the table, under the vise when you're desperate enough. The clamped stock shown is 3mm plate which is probably less than practical.
    While my modification of Randy's version is not to his level of detail, with my method, there's no need for slotting the toggles as the pins allow the clamping bolts to swivel to the clamping angle.
    My dimensions are for the Bridgeport table and will of course have to be adapted for different slot dimensions. Bolt lengths are to be decided upon in practice and cut to optimum lengths.

    My sincere apologies if this was already done before as I've never seen it anywhere before and was to me, an original idea in my small world of reference.
    So please don't post if it already exists.
    Great fun to all of you who happens to find it useful!!
    I'm going to have to see if I can miniaturize these. My milling machines are all desktop devices, with the largest being quite a bit smaller than a Bridgeport. A 5/8" T-nut is about twice as large as is needed, and maybe more.

    Bill

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    Exactly that. I had to make use of the hole because my rotary table's back plate (bought second hand) is totally out of true which rendered it useless. Still on the cards as a future project, bringing it up to standard.

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    The angles are indicated in the attached PDF file.

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    Quote Originally Posted by Christophe Mineau View Post
    Great idea, thanks for sharing !
    What's the use of the through hole on the rounded end of the claw ?
    What angles did you give to the other end ?
    My previous attempt to reply went somewhere and I'd just like to confirm that the through hole was a guide for manually shaping the outside radius on the claw. The angles are indicated on the PDF drawing. (bottom of the pictures.

  13. #9
    Supporting Member Christophe Mineau's Avatar
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    Quote Originally Posted by Raytonian View Post
    My previous attempt to reply went somewhere and I'd just like to confirm that the through hole was a guide for manually shaping the outside radius on the claw. The angles are indicated on the PDF drawing. (bottom of the pictures.
    Yes , it's OK, I didn't see the pdf at first sight
    Great work !
    Christophe



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    Cheers !
    Christophe
    ________________________________________________________________
    Visit my Website : http://www.labellenote.fr/
    Facebook : La Belle Note
    All my personal works, unless explicitly specified, are released under
    Creative Commons BY-NC-SA license.

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