Fuel Line Fabricating

Began the process of fabricating 4 fuselage fuel lines by making copies of the line templates in the plans. They originals aren't quite to full scale. Fortunately my printer can increase the size of copies on a percentage basis. Sizing the copies at 102% of the originals yielded templates that were dimensionally correct. From there I carefully straightened the 6' roll of 3/8" 3003 tubing and re-reviewed some YouTube videos on flaring, tube bending and working with flare nuts. I made a few practice flares and bends to get the hang of the flaring tool and tubing bender. Very glad I bought an extra 10' length of 3003 tubing from Spruce. It's cheap and allows me to make mistakes and practice some. I went in plans order and started with the 2 largest lines which are mirror images of each other. In retrospect that was a mistake as the 2 shorter lines involve easier bends and are more manageable. I promptly dorked up a flare while doing the initial bends on the large line. Although now unairworthy I continued fabricating the line for practice to see how well it came out. The end result was OK but wouldn't have fit well. I moved on to the shorter lines and after 2 attempts got a decent line that connects the fuel selector to the fuel filter. On both short lines I got a little flattening in the 104 deg bend that I attributed to the tubing bender. The limit is 75% of the original O.D. and I was at about 92% so I went with that. The line flares matched up nicely to the NPT fittings on the fuel selector and filter and I had no trouble getting the flare nuts threaded. Once all the lines are installed I'll torque them to spec.