by bill from nh » Sun Jan 03, 2016 5:34 pm
Like everyone else said, for your first build, you did a great job. And you did.:) The more you build, the easier it gets & the better you get. I'll second what Chris, Butch, & others have said. Use plenty of heat. I've found 45 watts is about minimal for chassis building. I usually use a 50 watt Ungar iron, you might not think 5 additional watts means much, but it does. I also own 80 & 100 watt irons, but they don't get used much. For cleaning brass & wire, I like to use the synthetic steel wools. The green pot scrapers are about the cheapest on the market. Several have mentioned acid flux. Yes, you can use it when soldering all brass & steel parts. You have to use it if any of the parts to be soldered are steel or iron, but don't use it on electrical joints. If you're soldering brass to brass, like your front axle tube to the front crossmember & square main rail tubes to the motor bracket, you can also use paste flux like what a plumber would use to solder water pipes. Steel & iron require the acid's etching to make a strong soldered joint, brass doesn't.
You're off to a great start, enjoy your future building.