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Thread: how to lay out an ellispe
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11-20-2009 #1
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how to lay out an ellispe
I thought I saw a thread on here, but anyways how do you draw one out. If you needed a piece of tubing to go through a piece of sheet metal at an angle other than 90, how would you draw it out to make the cut in the sheet metal?
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11-20-2009 #2
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Dang, that's good question. Anybody?
Traven
11-20-2009 #3
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PM sent.
Gary Rys
69 Camaro
11-20-2009 #4
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You find someone with a CAD system & tell them the pipe OD & the angle & have them draw it for you?
If you can measure that angle, send it to me along with the pipe OD & I will give it a shot.Scot
86 Monte SS
11-20-2009 #5
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Or you could cut a bit of tubing to the angle you need, and use that to trace it.
11-20-2009 #6
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There is also a tool that fits over the pipe & has a bunch of straight wires that surround the pipe & then you push it up to something (like another pipe or plate) & it will form to it so you can fishmouth the pipe or cut a hole.
Scot
86 Monte SS
11-20-2009 #7
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This thing:
http://www.vansantent.com/pipemaster.htm
A little pricey, maybe you could rent one.Scot
86 Monte SS
11-20-2009 #8
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You start out by laying out your pipe and dividing it up into equal divisions....then project it at the angle you want and simply transfer the lines across the points and this will give you your ellipse. I can show you quicker than I can explain how to do it.
Last edited by John Wright; 11-20-2009 at 05:50 AM. Reason: added drawing for clarity
1970 RS/SS350 139K on the clock:
89 TPI motor w/ 1pc rear seal coupled to a Viper T56 via Mcleod's modular bellhousing w/ hydraulic T/O bearing from the Viper, 12 bolt rear w/ 3.73 gearing, SC&C upper control arms, factory lowers with Delalums, C5 brakes at all four corners, Front Wheels 17x8's with Sumi 255/40/17 and Rear Wheels 17x9's with Sumi 275/40/17.
Brief description of the work done so far can be found here: http://www.nastyz28.com/forum/showthread.php?t=112454
11-20-2009 #9
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PM answered.
I got the jist with the pdf. still figuring out how to make that work for me.
11-20-2009 #10
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The drawing I posted will also allow you to make a paper template to wrap around the pipe so you can cut it correctly....this same type of thing works for pipe to pipe connections....or any shape for that matter.
1970 RS/SS350 139K on the clock:
89 TPI motor w/ 1pc rear seal coupled to a Viper T56 via Mcleod's modular bellhousing w/ hydraulic T/O bearing from the Viper, 12 bolt rear w/ 3.73 gearing, SC&C upper control arms, factory lowers with Delalums, C5 brakes at all four corners, Front Wheels 17x8's with Sumi 255/40/17 and Rear Wheels 17x9's with Sumi 275/40/17.
Brief description of the work done so far can be found here: http://www.nastyz28.com/forum/showthread.php?t=112454
11-20-2009 #11
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12-16-2009 #12
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X2 on these. We use these a bunch on our custom frames that we build for equipment. Worth the investment IMO. I believe Harbor Freight even has a product similar to these now.
Originally Posted by Samckitt
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