:? hello again, since i`m new to this sparky thing, i want to ask a couple of questions, and please, keep in mind that i`m new. 1-what is the diference between .030, 035 wires. 2-wich one is stronger, if i want to weld 3/4 pipe to build a mini chopper frame, wich one should i use? my welder is a flux welder,90 amps, can i weld aluminum with it? thanks in advance for any help. louie