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Discussion in 'Hacks' started by MotoJ, Sep 28, 2012.
Might be little or no more expensive than the junk you're considering.
Nice! From your own portfolio?
Not a portfolio just a collection of pic of crappy fab work. I look forward to adding your pics!
One reason to use tubing is that you can slide tube into tube for adjustable mounts. We use 1 3/4 .120 wall tube as you can slide 1 1/2 inch tubing into it. For some of our mounts we use 3/4 scedule 40 pipe instead of one inch tubing as it is .50 of an inch larger and as such a bit stronger. We have also found that even with the proper dies for the bender the 3/4 inch pipe bends nicer then one inch tubing.
One reason I can see that some one might want to use pipe rather then tubing is that inexpensive benders such as those sold by Harbor freight come with pipe dies and not tubing dies. As long as you design the frame for the tubing or pipe you are using I see no problem running pipe rather then tubing but you must design for the material you are using. For 4 X 4 and such one reason there may be debate is regulations for entering events may state what roll bars and the like must be made from a specific tubing. I know that when I use to build rally cars the SCCA required us to use specific tubing sizes to pass tecinical inspection on the roll cages.
I'll take that as the last word! Thanks Jay. Unfortunately it's all academic, as that batch got snatched up by someone else. More will come available hopefully.
Please don't use pipe for structural fabrication. Pipe 'in general terms' is used for materials transfer, either gas or liquid. It is manufactured for bursting strength, not compression/tension loads like tubing. The metalurgy is vastly different between the two. That is why the governing bodies for all competitive racing specify tubing!
... like sand through the hour glass , here we go again
i only have one thing to add
how much is your life worth
1 inch dom 120 wall 2.95 per foot
1 1/4 dom 120 wall 3.50 per foot
1 1/2 dom 120 wall 3.95 per foot
each piece slides into the next
when im riding down the road and i look over at my wife i am responsable for her life, i will use the best material i can buy
i cant replace her
just my 2 cents
Junk yards are full of cars that are 'safer' and people are still dead when they hit shit ... where do you want to draw the line ... the D9 Cat I posted.
... and that would be more than " one thing to add " , just saying
Granted it's hard to lose your wife ... trust me I've tried ... she always finds her way back.
I used HREW for my cage, because I got it for a good deal. I don't think I'd use pipe, too damn heavy.
For a sidecar frame, who cares. You can use square tube and angle iron so why would pipe be a problem.