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Thread: Aid for grabbing round things with clamps

  1. #1
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    Don42's Tools

    Aid for grabbing round things with clamps

    Sometimes I need to clamp a round thing like a pipe to a flat thing for welding. It's hard to get usual welding clamps to grab a round thing.
    I made a little aid to help with that. It's just a little piece of angle welded to a little piece of flat stock with a magnet in it.

    Aid for grabbing round things with clamps-angblock1.jpg

    I drilled a small hole .150" deep in the middle of the flat stock. I have some little pill supermagnets 5/16" dia x .104 thick. Using a 2-flute 5/16"
    end mill, I made a flat-bottomed hole .105" deep. The small hole was so the end mill wouldn't leave a tit in the bottom of the hole.
    Then I inserted the magnet. That's it!

    Aid for grabbing round things with clamps-angblock2.jpg

    It sticks to the swivel pad on a welding clamp, but it's free to rotate so the vertex of the angle aligns with the axis of the round object. I recessed the magnet so it wouldn't get crushed by clamping force.

    Aid for grabbing round things with clamps-angblock3.jpg
    Download plans for clamps.

  2. The Following 3 Users Say Thank You to Don42 For This Useful Post:

    DIYer (Nov 5, 2024), ductape (Nov 4, 2024), Jon (Dec 1, 2024)

  3. #2
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    Thanks Don42! We've added your Welding Clamp Adaptor to our Clamps category,
    as well as to your builder page: Don42's Homemade Tools. Your receipt:



    Download plans for clamps.
    New plans added on 12/06/2024: Click here for 2,617 plans for homemade tools.

  4. #3
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    Manitoba Man's Tools

    Good one

    Consider your idea borrowed. Bob
    Quote Originally Posted by Don42 View Post
    Sometimes I need to clamp a round thing like a pipe to a flat thing for welding. It's hard to get usual welding clamps to grab a round thing.
    I made a little aid to help with that. It's just a little piece of angle welded to a little piece of flat stock with a magnet in it.

    Click image for larger version. 

Name:	angblock1.jpg 
Views:	32 
Size:	456.0 KB 
ID:	48191

    I drilled a small hole .150" deep in the middle of the flat stock. I have some little pill supermagnets 5/16" dia x .104 thick. Using a 2-flute 5/16"
    end mill, I made a flat-bottomed hole .105" deep. The small hole was so the end mill wouldn't leave a tit in the bottom of the hole.
    Then I inserted the magnet. That's it!

    Click image for larger version. 

Name:	angblock2.jpg 
Views:	34 
Size:	321.3 KB 
ID:	48192

    It sticks to the swivel pad on a welding clamp, but it's free to rotate so the vertex of the angle aligns with the axis of the round object. I recessed the magnet so it wouldn't get crushed by clamping force.

    Click image for larger version. 

Name:	angblock3.jpg 
Views:	44 
Size:	1.19 MB 
ID:	48193


    Download plans for clamps.

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