09-13-2012, 05:33 PM
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#11 (permalink)
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Brace a 20' tube against 2 trees 15' apart and throw you winch cable around the middle. When it pulls through you'll have more curve in the middle. Cut it in half and the middle of each piece goes to the front. 
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09-14-2012, 10:03 AM
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#12 (permalink)
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The road not so traveled
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I would have to bury 2 poles, we are a bit short on decent sized trees here. The curve would be stronger, but I have some doubts as to the ease of making it come together.
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09-14-2012, 12:44 PM
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#13 (permalink)
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I wasn't completely serious. Especially the part about pulling completely through. Ouch!
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09-14-2012, 01:55 PM
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#14 (permalink)
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Get someone to weld up some smaller segments that gradually change angle. When you get the top and sides done the rest should be relatively easy.
If you're going to do it, do it right!
__________________
He gave me a dollar. A blood-soaked dollar.
I cannot get the spot out but it's okay; It still works in the store
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09-17-2012, 01:18 PM
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#15 (permalink)
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The road not so traveled
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The main purpose of the cage is to keep me from getting hurt/killed for if/when I roll it over. All it would take is one bad weld and the cage fails which could end badly for anyone inside.
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09-17-2012, 02:36 PM
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#16 (permalink)
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The road not so traveled
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What I should be able to do is a slight bend every 12" or so. That would approximate a curve pretty closely.
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09-17-2012, 03:32 PM
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#17 (permalink)
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There ya go.
How are you doing the short bends? Heat? Mandrel bends?
I have a 12 ton press for bending tubing up to~1 1/2". It has two upper rollers and an adjustable lower die. I don't know that it's adequate for roll bar tubing. If it had a lower roller you could pull the tube back and forth like sheet metal on an English wheel to make longer curves.
Maybe improvise the rollers, drill holes in the ends of a piece of tubing for winch cables, and have a couple for 4x4 buddies stand off on each side and pull it back and forth with their winches?
"I didn't know what I was doing, but that never stopped me before."
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09-17-2012, 03:59 PM
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#18 (permalink)
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The road not so traveled
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1 3/4 DOM .12 wall tubing
I have access to a mandrel tubing bender and notcher.
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10-01-2012, 01:55 PM
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#19 (permalink)
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The road not so traveled
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We got the main 3 hoops bent up this weekend with the front (A hoop) tacked in. Talk about a workout!!! apporx 18:1 mechanical advantage (18 ninty degree strokes on the handle = 90 degrees of bend) with a 3' bar still took quite a lot of effort to move.
I have allmost all of the body mounts rebuilt and beefed up and the new body frame is cut and essentially welded in.
Its looking like it will come out pretty nice so far.
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10-01-2012, 05:19 PM
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#20 (permalink)
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pics, or it didn't happen.
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