Ok so I have my outboard bracket frame together, and I have to weld on the outboard mounting plate. I have a piece of 3/4" aluminum plate and I have 1/4" plate. I think Id rather use the 3/4" plate... but I will be welding it to 1.5 " square aluminum tube with a .125 wall. so thus the thick and thin.... should I try to machine down the thickness around the outside so the material is similar in thickness. Or do I try to JUST get ant kind of bead down from the tubing to the side of the 3/4" plate and then try to build on top of that??? I am thinking the first pass Ill get a good melt into the tubing, but I might not get any penetration into the plate...



the plate will cover the five sides center section

I will be using a Miller 250 mig with a 30 A spool gun and I have 4043( I think )( not 5356) wire .030"...
some advice before I try?

thanks

bob