Tube bender and a roll cage.

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LittleJohn

LittleJohn

Joined
Oct 12, 2016
Threads
9
Messages
260
Location
Lower Vancouver Island bc
Website
www.mapleroseexplorations.ca
Hey all.
I'm trying to get my hands on a tube bender so that I can fab a internal roll cage for my 40. I also need to make a couple mounting pillars for the roof rack.
There is beer and home made cookies in it as a reward. If you're really helpful Jess will bake you a pie of your choice...!
 
For the time, effort, and cost... Metal tech.

Their kits are about the same price as the materials from what I've heard.
 
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884.00 canuck plus shipping from Orgeon, Mark does build a nice cage...

I think three sticks of DOM would do it or you could go with HREW which is cheaper..Some people mix, main hoops in Dom and the connectors in Hrew.

DOM vs HREW
There has been a lot of talk about DOM and HREW tubing among off-roading circles and I'll try to answer a few questions that you may have about the differences.

DOM is a process and means "drawn over mandrel". Typically you use DOM when you require precise thicknesses in the ID, OD or wall thickness of a tube. It is not seamless but is made from sheet steel, rolled and electric resistance welded and finally, "DOM'ed". DOM is a cold process. Most typically it is made from low to medium carbon steel.

HREW is cheaper than DOM, but isn't as nice. HREW has a seam weld, as does DOM, but DOM is taken a few steps further to counteract the welding and cold working abnormalities for a straighter stronger piece of tubing. But as far as strength goes for bumpers and sliders, HREW will sufficiently do the job except for applications that require extreme strength.

If I were building a purely competition rock buggy where I would be getting into areas with large drop-offs, I would probably use DOM, but for the kind of off-roading that most people do and even for the occasional rock competition, I would probably go with the HREW.

In summary, DOM is a stronger tubing material than HREW, but costs about twice as much per foot. HREW is more than sufficient for most off-road applications.
 
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If your dead set on building your own, you could try Lejeune Engineering off Admirals. They build chassis/cages for a living and I used to take tube there and they would bend them for $10/bend. That was over 8 years ago so the price might have gone up by now!
 
I wonder if A&A Chassis in the highlands area is still around... they'd probably offer similar services...
 
Victoria and Brake and mufler was willing to bend some tube for me years ago... they were still there when I last drove by.
 
if you get a bender and do it yourself keep in mind a couple rules of thumb.
-if bending seamed pipe, keep the seam on the top of the bend (not the back or the throat) this will reduce the risk of wrinkling or collapsing.
-if possible pack the pipe with silica sand and bung each end to further reduce wrinkling and collapsing
-measuring from the center of pipe is easiest
-Call me if you need a hand, I love bending pipe
 
I think a known club member has one air over ram that has not been used in for ever....:) Not sure if he lends, I will ask him....

What year is that H55 you have?

Rob
 
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