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  #1  
Old 01-17-2013, 09:33 PM
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Default Bending square tube

Have any of you made any benders to make larger radius bends out of 3/4 or 1" square tubing?

I'm looking for ideas, as I want to start working on the transmission tunnel, and loops around the drive shaft area...

I've seen a few tubing rollers from companies like eastwood, etc, but looking for maybe a home brewed setup...
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Old 01-17-2013, 10:00 PM
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seems like of all the tubing benders a tubing roller would be one of the easier to fabricate. All they are is 3 steel dies that roll. I'd be tempted to weld some pegs to a steel bench and make some dies that'd rotate upon them on.
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Old 01-17-2013, 11:19 PM
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I have a harbor frieght roller that I had dies made to roll 1". When I bought it they didn't offer the 1" or 3/4" dies. It works awesome as long as you don't need to make real tight bends. Worth the few $ IMO.
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Old 01-17-2013, 11:43 PM
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DR, check out the Tube Coping Calculator thread in the Favorite Links column. I had included a square tube bender link when I did that post, might be something you can use.
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Old 01-18-2013, 08:54 AM
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Yea I jsut looked at that, I was hoping for one that did not crush the corners....
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Old 01-18-2013, 09:26 AM
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Quote:
Originally Posted by Dirtyrat View Post
Yea I jsut looked at that, I was hoping for one that did not crush the corners....
Unfortunately that's the inherent problem with square tubing. The inside metal has to go somewhere so the inner radius concaves to allow the tube to bend.
Ya might have a better result if, you fill the tube with sand before you try bending it.
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Old 01-18-2013, 12:37 PM
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I may end up using flat stock for the curved sections, I have to sort out how I want the tunnel to look... just wish I had a nice way of drawing the square tube to shape... or rolling it in a roller....
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Old 01-18-2013, 06:53 PM
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I bought one like this but havnt used it to give a recommendation.Loaned it to my dad and he didnt know how to use it and bent the adjusting threaded shaft so I have to straighten before I can use it.LOL

http://www.northerntool.com/shop/too...-_-1206-_-CONF

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Old 01-18-2013, 06:57 PM
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That would be perfect! I would love to be able to make some nice bends like that... Just cant pony up $200 for one right now... Man that will go on my list of buys at some point in the near future though...

Thank you!
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Old 01-18-2013, 10:09 PM
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I have a tubing roller but I find it's best for larger radius bends. I've done lots of bending with a basic bottle jack type bender but as said above, both methods do ripple the inside side of the tube. For really sharp radius bends, I often resort to using the torch, heat and bend.
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