I will take a few pics of my set-up so everyone can see what I do. The filler rods are sticks...they actually look like arc welding sticks. They melt to the metal well but it takes timing and perfect heat. You would never be able to make it with a butane torch or other form of heat. I've tried it all.
My secret is that I actually used to weld for a living...oxy map set-up is an art.
My secret is that I actually used to weld for a living...oxy map set-up is an art.