Hi guys, I'm a backyard operator trying to master stick welding RHS , looking for a nice consistent quality looking weld using my Bossweld 180amp welder on rhs tube 2-3mm , straight single run beads looks fine , but as soon as i join two pieces same material together and run the same bead it eventually blows holes usually at the end or ends up looking terrible with worm holes and porosity ??? I'm running the welder at 135 + amps for a smooth finish using 3.2mm 6013 Stonebridge rods. I've noticed running any lower than 110 amps the welds are full of worm holes and porosity ? This issue is doing my head in. btw i can get satisfactory results using my mig gas welder on same material but i prefer stick. Pics below.

what are your thoughts on fixing the problem ? i'm sorta leaning towards getting a new welder , also thinking of changing rods to 6010, 6011 ,7010 ,7018 , 7024 and see which rod works better than 6013.

Cheers
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