My Mig welder just arrived,its damn massive and the parcel blokey struggled to bring it out the van.
What size is it? My little mig is easy to lift, its the bottle that was a pain, down sized now as I don't do so much welding.

Yes I have some of them too... helps but doesnt stop box section warping if you pump too much heat into it... as I discovered...
I don't think much will if it gets to hot, when I made the front wishbones for my buggy I made a steel jig and then really cooked the welds because I wanted to make damm sure it didn't come apart. even after cooling I couldn't get it out.:whistling:

Those mag jigs are only really for tacking, like Irving said you have to control it with reduced weld time, and moving around the workpiece, like torquing a cylinder Head.


Have you done any welding before?