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  1. #1
    Join Date
    Apr 2007
    Location
    NJ
    Posts
    23

    Default Tube notching / fishmouths

    What's the best way to find angle of tube for notching ?

  2. #2
    Join Date
    Feb 2009
    Location
    Lodi, CA
    Posts
    1,262

    Default

    It's been talked about here before, many times. Dig around in this link you'll probably find the answer you are looking for.
    Obviously, I'm just a hack-artist, you shouldn't be listening to anything I say .....

  3. #3
    Join Date
    Jun 2006
    Location
    Calgary, Alberta
    Posts
    377

    Default

    I don't know if this will help, but there is a free program called 'tube miter' online, look it up, download it.... it will print templates for miter joints on all sizes of tube up to around 3.5". It will calculate all angles, and print temps for connecting different sized tubes together of different wall thickness.
    Jonny

    Dynasty 300DX
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  4. #4
    Join Date
    Nov 2008
    Location
    Kansas City Metro
    Posts
    387

    Default

    Here is a link for pipe joints, enter the numbers and thickness and just hit submit. It opens a printable page with the template on it. I have never used it myself, just came across it and thought it was worth saving.

    http://www.harderwoods.com/pipetemplate.php

    Good Luck

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  5. #5
    Join Date
    Nov 2008
    Location
    Colorado Springs
    Posts
    276

    Default Tubemiter program

    here is copy of the FREE tube miter program(runs in windows)

    I had "Zip it" to upload it.

    Everthing MM but it works pretty good
    Attached Files Attached Files
    Live Right Have Fun

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  6. #6
    Join Date
    Sep 2009
    Location
    southeast mich.
    Posts
    28

    Default

    those programs are worthless unless you are notching with a saw or a grinder. if you already know the intersection angle, you know the notch angle too. i just fit up a cage yesterday and eyeballed every notch in the car. every tube fit perfect on the first cut.
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  7. #7
    Join Date
    Jan 2010
    Location
    Calgary, Alberta
    Posts
    197

    Default

    Here is a link to a program!
    http://www.cobratorch.net/ttn_dxf

  8. #8
    Join Date
    Mar 2009
    Location
    Red Deer, Alberta
    Posts
    19

    Default

    I use these http://www.vansantent.com/pipeMaster.htm with ,

    I made a set of "jigs" one end has the tubing size I'm fabing about 8" long with the pipe master on it, then I have a second pieace of tubing " I have various lenth's" smaller so it will slide in side the first piece then U can put it in the gap, slide it apart, get your fit with the "pipe master" take it out trasfer it on to you work pieace then do the other end. it works for me. Not perfect and takes a little time but I find its easier than the programs, for the amount of tubing U will waste trying different bends,notches IMO its faster to try it, and it does not fit save it for another project and build another pieace than it is to mess around with a computer.

  9. #9
    Join Date
    Jun 2010
    Posts
    12

    Default

    One thing I've found hard to find out and am still looking for info on is finding what point to go off of from a bend in tubing, since there is no edge, where do you measure from?

  10. #10
    Join Date
    Mar 2009
    Location
    Corona, CA
    Posts
    213

    Default

    You can use the edge of a bending die as your mark.

    If you bend your own tubing, mark where the die edge is at the start, and you'll have a reference point. I hope that helps you with your question.
    Precision is only as important as the project...if you're building a rocket ship...1/64" would matter. If you're building a sledgehammer...an 1/8" probably wont.

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