Sorry guys probably a really obvious thing i'm missing but really really new to welding, just got a Clarke 145 turbo mig welder and tried to weld some angle steel together 3mm thick - all it get is lots of pops spatter and no weld or very very little. I've got the settings on wire feed number 6 and the highest ampage ( I think ) its set at max 2 ( there's four settings ) min , max , 1 and 2. I've set it up as in the manual for NO gas so the clamp is positive and i'm using 0.8mm flux wire.....I know its me doing something wrong, but i'm trying all sorts and getting nowhere. Can any one help before I give up and sell the damn thing.