Trying to weld, I’m terrible!

Dave_J said
You will need an 0.025 inner liner and use 0.023 tips for 0.023 wire. A 0.035 inner liner for 0.030 wire will not work.

No side breezes, use cardboard and visqueen as wind breaks.

Turn the gas flow up to 25-30 Cf. Go in short 1-2 inch welds.

CLEAN, CLEAN! Clean it again. Rust, grease and paint will wick towards the heat.

Ground clamp within 2 foot of welding and best if in direction you are pushing the tip.

CFD244 said
I have found this NOT to be the case. I use a Millermatic 210 and have used both .035 and .023 wire by simply using the corresponding feed rollers and contact tips.

toplscuda said
I agree. I have been doing welder repair for 30 years. As long as the liner is not too small you are good to go as long as you have the correct tip and drive roll

I agree but in 1994 when my Community Collage got in 10 new Lincoln SP175's they all came with 0.035" liners and my Instructor tasked me to convert all them to 0.023 wire. I had 10 new 0.025" liners so it was an easy swap. I also had to have the Collage machine shop make 10 aluminum adapter spools for each to hold the large 10-12 pound spool.