Go to wally-world and grab a box of 20 Mule Team Borax and dig around for some metal clothes hangers. Vee out 2 pieces for a butt weld, bring the ends of both pieces to bright red and sprinkle some borax on the crease between the 2 pieces. Keeping both pieces at the same temp, bring it up to where the clothes hanger will start liqufying and slow start your weld. The borax is used as a flux to help prevent oxidation and the clothes hangers work just as well as any specific welding rod you can buy, especially for tinkering. I torch weld, but mostly forge weld in the shop and borax is always around for my welding. In the forge, I keep my piece between the neutral and oxidizing sections of the fire and just brush off with wire brush, borax, bring up to welding temp and hammer away. Your torch isn't much different really. Hope you have good luck with it :-)

When cutting metal up to 1/2 inch, use 3-4 lbs A and no more than 20lb on oxygen. Any more pressure on oxygen in just wasted.