I need to lay down two 3 welds on some 1/8 aluminum but my welder is not set up for it. could i just out fit my welder with aluminum wire without buying the spool gun and get the same results? or maybe I should just get a welding shop to do it for me?- its easy to put a spool of Al wire in a mig welder, but that isn\'t the issue. as mentioned previously, the Al wire is very soft and may present problems feeding through the long feed tube. hence the design of the spool gun ... tube length = none ... noWhat is your machine that you will be using? Can you weld AC on it? Do you have a High Freq. Box? Will you GTAW it or use GMAW? What Alloy of Aluminum is it? Need much more info than you have provided. If GMAW best to have a pull or a push / pull wire feed system such as in a spool gun. Aluminum is too soft to just push from a wire feeder unit.Hi. You need a spherical tip on, say, a mig welder to be successful when welding aluminum. Spreads out the heat better.Other related question