^^Panel lines can really add detail to a scratchbuilt project. They're easy to do so long as you're patient and steady. Here's how I do it. ^^When working around a project such as ringing the entire nose of this plane, it's best to tape it out first. ^^Grab a straight edge and a pick for this project. These little picks come in a package of 4 for around $10 and offers different angles and sizes. ^^Tape doesn't make for a very solid backing so use the straight edge to keep your scribe line from wandering. You need only etch the surface and only do the flat, straight areas. ^^Here it is with the tape removed. Notice the corner aren't done. ^^Now you need a steady hand. Tape each edge individually and connect one line to the other. Carefully etch the connecting lines. ^^Remove the tape and sand the areas. Etching will create a raised edge on each side of the panel line that you need to cut down. Use your pick to clean out the channel for final inspection. ^^Once you get all your obvious panel lines done and are not sure where to go next, it doesn't hurt to sketch out some ideas.