liam.mccaffrey
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posted on 10/6/10 at 09:40 AM |
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Pipe mitre
I need to generate a wraparound template for a 7.5 deg cut on an 18" OD pipe and I just can't remember how to do it?
Anyone shed any light?
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MikeR
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posted on 10/6/10 at 09:45 AM |
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look up tube mitre on the web - some good software does it for you as long as you have a printer.
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splitrivet
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posted on 10/6/10 at 09:46 AM |
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You can get it here Liam http://www.ozhpv.org.au/resources/shed/tubemiter.html
Cheers,
Bob
I used to be a Werewolf but I'm alright nowwoooooooooooooo
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liam.mccaffrey
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posted on 10/6/10 at 11:26 AM |
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I had tried tubemitre but the problem is I am interfacing with a flat plate and not another pipe whic it won't let you do I don't
think.
I have done it in CAD now though
Cheers
[Edited on 10/6/10 by liam.mccaffrey]
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MikeR
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posted on 10/6/10 at 11:54 AM |
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this is the other program,
http://cobratorch.net/ttn_dxf/
Its good cause it does gussets for you (Although seems to fail at the example liam gave).
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Bob C
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posted on 10/6/10 at 12:24 PM |
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is that not just a big sinewave.....??
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smart51
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posted on 10/6/10 at 12:38 PM |
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quote: Originally posted by Bob C
is that not just a big sinewave.....??
Only if you're doing 90° joins. If your tubes join at an angle E.G. triangulation then the pattern is a little more complex.
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907
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posted on 10/6/10 at 12:41 PM |
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What happened to a set of trammels and a square?
I must be getting old.
Paul G
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iank
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posted on 10/6/10 at 12:50 PM |
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I've got the equations kicking around somewhere if anyone is interested, and even implemented a new version of tube mitre in python outputting
to a pdf for printing later. Should still have it but haven't run it in a while.
ETA: Just tried and there is a problem with the external pdf generation library dependencies.
It might be possible to approximate for a flat join by making giving the tube you are butting against a very large radius relative to the one you are
cutting.
[Edited on 10/6/10 by iank]
--
Never argue with an idiot. They drag you down to their level, then beat you with experience.
Anonymous
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liam.mccaffrey
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posted on 10/6/10 at 07:42 PM |
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I appreciate your efforts guys, thanks. I tried using a large rad in tube mitre but it was having trouble displaying such large pipes (18" and
above)
Some of the ones we did today didn't fit on an A0 sheet.
I spent an hour on CAD today and could do any size or angle in about 10 mins now.
I am no programmer but as someone else said this would probably be a pretty simple one.
I'm going to blow my own trumpet a bit here as I'd never been shown how to do this and worked it out pretty much from scratch
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