Welding Tips and Tricks

If you had no charts or information about wire speed and voltage, would the wire be set to one setting before burn though of metal and lower if bead bigger than material thickness then voltage to a setting just after stubbing to a slightly convex bead

Don't set it from stubbing as that is on the danger signs list for lack of fusion. Turn the wire speed right down so the machine makes a hiss with the occasional pop. Then you turn the wire up to where it makes a nice crackle.

Does that still apply for flux core

Nope, Flux core is deceptive. Consider the fact that you are feeding a hollow tube instead of a solid wire, so wire speeds are a lot higher for a given voltage setting. And because of the additives in the wire, you don't get the crackle sound of solid wire, you get a lovely hiss like a fuse burning.

If yourself had no charts or start settings what would be your steps to setup your machine using flux core

https://www.millerwelds.com/resources/w ... calculator

Feed your wire for 6 seconds then measure how much came out. Then plug your info into the miller mig / flux core calculator.

weld on some scrap, doing the steps as above, adjust wire for a hiss, you can pump much more wire than you'd expect into a f/c weld, Once shes welding, make small adjustments either way with the wire speed to make the bead look better.