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Thread: Flattened rounded angled tubes ... eh?

  1. #1
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    Flattened rounded angled tubes ... eh?

    Dear sheet metal gurus...

    I'm sure there's a formula for taking the diameter of a pipe coupled with the angle cut that will give you the arc needed for cutting sheet metal out so it'll be right when rolled into a tube ...

    I'm pretty sure it's a curve, of some kind ... but I can't for the life of me work out how to get the right shape ... cutting it straight doesn't work, i end up with an Ogee kinda shape when it's curled. Got plenty of posterboard for figuring this out, thankfully! :P

    Any ideas?
    Jason Beam
    Sacramento, CA

  2. #2
    Join Date
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    Maybe there's a SketchUp trick that Dave Richards can come up with for unrolling a tube after you've sliced through it at an angle. If you could use SU to unroll that tube into a flat sheet, you could just print it out for a full size template.
    --------------------------------------------
    Link to my ongoing ClearVue DC Install on CV's site: http://www.gallery2.clearvuecyclones...s-Mini-CV1400/

  3. #3
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    Jason, do you mean like this?

    Irony: The opposite of Wrinkly

  4. #4
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    Speaking of the Guru......



    Just amazing what he can do with a piece of paper and some crayons...




  5. #5
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    I didn't even have to take off my socks for that one.
    Irony: The opposite of Wrinkly

  6. #6
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    Hey Man,
    Greg and Dave!!!! You guys crack me up! Love that innerplay...
    Okay, Dave...try this in a 2" dowel, a skeleton key hole centered in the circle which happens to be cut on a 45 degree angle and entering to a depth of 3 1/2" from point of contact, then making a right turn and exiting the dowel. Take your socks of and "SEND THEM TO THE CLEANERS!" Sorry to hi jack this thread. NNR (No need Reply)
    Shaz
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  7. #7
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    Is this close enough?
    Irony: The opposite of Wrinkly

  8. #8
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    Exactly what I was looking for. YOU DA MAN / GURU
    Welcome back.
    I am a registered voter and you can be too. We ( registered voters ) select the moderators for this forum by voting every six months for the people we want to watch over this family forum.
    Please join me. Register now.
    Shaz
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  9. #9
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    Thank you, Robert.

    It was a good service but still hard to believe it was real.
    Irony: The opposite of Wrinkly

  10. #10
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    Quote Originally Posted by Dave Richards View Post
    Jason, do you mean like this?
    Looks like the perfect opportunity for another step by step tutorial so us SU (Stupid Users) can figure out how to do it. Yudaman.
    --------------------------------------------
    Link to my ongoing ClearVue DC Install on CV's site: http://www.gallery2.clearvuecyclones...s-Mini-CV1400/

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