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Thread: Welding rhs without distortion
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24th November 2005, 10:41 AM #16
Schtoo, I'm not stuck with the original configuration but I need to run wheels on top of the top tube and a keeper underneath 1 bottom edge so the carriage (not shown) cannot lift or tilt
I don't have any spare 3 x 2, but I might run a few welds on a couple of 2 x 2 shorts just to see how much distortion there is.
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26th November 2005, 09:13 PM #17
Mig brazing would do it if you have it available - runs a couple of hundred degrees below the fusion point of steel so it won't distort.
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28th November 2005, 08:54 PM #18
I've been chewing all this over and I think I'll bolt the whole lot together including top and bottom rails, both sides.
Then I'll weld it up sequentially in stages.
If it comes out ok wonderful but if its distorted too much I'll bolt a top rail made of angle on using the same bolt holes used to bolt it all together intially,
this way I can pack the angle so its perfectly straight.
In fact I might put the angle on regardless as a 1/4" width of angle (web pointing up) will have a lot less tendency for sawdust buildup and possibly eliminate a need for sawdust wipers that I would need if I track the carriage wheels on a 2" flat surface.
Thanks everyone for all your comments
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29th November 2005, 11:30 PM #19
You can get wheels that run on angle too. At least around here you can.
Used them on a gate that's surrounded in dirt, and they keep on ticking, save having to dig the rail out every 6 months or so.
I'd go for it.
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