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Old 31 August 2007, 09:57   #11
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I also bought one of those hydraulic pipe benders - the biggest one I could find. It's craqp - crushes every pipe I have tried in it.
Filling the pipe with sand and plugging the ends might help.

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Old 31 August 2007, 10:08   #12
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.are you sure you want to bend all the way to 360..?
See my A frame when it's finished
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Old 31 August 2007, 11:18   #13
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Filling the pipe with sand and plugging the ends might help.
I think that brass instrument manfacturers (trumpets, coronets, trombones, etc) use ice to keep the tube from collapsing (fill with water and freeze with ends open for expansion.) Might not be an option with a 12' piece of 2" stainless, though, unless it's winter and you live near Stoo...

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Old 31 August 2007, 11:34   #14
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Andy, I gave up trying to bend 50mm stainless, it's fekkin tuff stuff. I can happily bend 25mm x 1.6mm wall in a standard pipe bender if I pull gently on the tube as well as on the handle. My formers only go to 180 though. I solved the 50mm bending by buying pre-made bends and welding them to the tube. You can get bends with a really tight radius.

I saw some crackin stainless bending work outside of a new Argos store locally....I have to admit I had some bad thoughts about an angle grinder and 2am....

I've used a company for mail ordering bends because part of the problem is knowing what is available so you can get your local stainless stockist to order for you. However, I'm fekked if I can remember their name. I'll look into it for you because their web site has a downloadable PDF which contains the sizing info which you might find useful.

Here ya go. Nexusflow and PDF for bends. I'm not recommending them because they made a mistake in what they supplied but it came right in the end.
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Old 01 September 2007, 01:39   #15
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So for ordanary 1" stainless tube a tripod mounted 180 deg conduit bender would be OK? Or would this have a tendancy of deforming the tube too much? I'm not too worried about the 2" stuff as I think I'm going to have a centrally mounted mast at the back instaed of the A frame.
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Old 01 September 2007, 01:49   #16
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So for ordanary 1" stainless tube a tripod mounted 180 deg conduit bender would be OK? Or would this have a tendancy of deforming the tube too much? I'm not too worried about the 2" stuff as I think I'm going to have a centrally mounted mast at the back instaed of the A frame.

you can buy stainless conduit and that is fine
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Old 01 September 2007, 01:54   #17
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Would be a little heavy though....Wouldn't it?
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Old 01 September 2007, 01:58   #18
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Would be a little heavy though....Wouldn't it?
You'll not notice a couple og kg's

I've also got a set of formers that I milled to suit standard tube, but it does deform a little
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Old 01 September 2007, 02:38   #19
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Buy the bends, and have them welded in.

http://www.ferraristainless.com/
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Old 01 September 2007, 04:10   #20
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So for ordanary 1" stainless tube a tripod mounted 180 deg conduit bender would be OK? Or would this have a tendancy of deforming the tube too much?
That's what I use but I have to hold the feet still and I also use an extension on the handle. As I mentioned earlier, I need to lean on the tube too to help ease it around. As to distortion, I'll snap a picture of a bend for you and you can decide.
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