what welder

Are you limited to a 13amp domestic electricity supply?

One thing to watch is 4mm (without a lot of joint preperation) is thicker than a MIG can easily handle on a 13A supply if you're limited to that. I've a Clarke machine that can handle 2mm (just) but not well or easily (does 0.8mm bodywork very well though).

I've also a Clarke invertor that theoretically needs 16 Amps but will burn a 2mm stick all day, and a 3.2mm stick without to many duty cycle issues and without blowing 13A fuses.

There's always the option to connect a hefty MIG to a cooker socket of course.

In my advise stay away from Clarke stuff.. its cheap and nasty and will only break down, get yourself a MIG machine, anything up to 200amp will run on a 13amp plug and will do up to 6mm on 0.8mm wire

Good




Could i please ask what is good about this piece? From what i see its got no root penetration which means to low amps and got spatter all over the peice which is wrong angle and the beads arnt straight

Funny enough it was the best example i could find! :huh:

You would think there would be more pictures of better welds but oh well haha...

Yes there is lack off root pen but the side wall fusion seams to be decent and would hold up to a decent amount of weight

No way of telling until a Macro Etch test was done however

This isnt d""k measuring here but iv been in this trade for nearly 12 years and i can tell when i put a run in that il have root and sidewall pen.
Theres and old saying around here that 'if you can piss straight you can mig weld' and its true

That's the best way to do it

You can weld 6mm plate at around 90 amps with a 2.5 electrode so you have plenty of juice!

Also try your hand at TIG once you get the hang of it you can easily make good looking and strong welds especially on thing stuff