Wanted to try my hand at welding and been dropping hits to the wife that my birthday is coming up and a MIG welder sure would be nice to have. Well, my birthday came and, BAM, my sweetie got me the MIG welder — with a catch, she wants me to build her a custom 3-wheeler bike. First, I have to learn how to MIG weld properly and second, how do I go about fabricating a 3-wheeler. Any tips or suggestions on both topics?