Method for making 3D shapes (used to make a bike fairing)

Step 6 Make a little spreader for the tip of the fairing and attach it.

This step is only required if you're making a partial fairing (one edge open). I made the decision to build this fairing for my conventional recumbent (the intro page has shots of a larger version for the wind powered bike project which is almost done), and noticed when I did it that the partial fairing wanted to curve inward along the unsupported sides (see photo below). To correct for this, I designed my mounts so that it is spread from the bottom (see photos), but the area near the tip/pedals still wanted to curve in a little and I was worried about clearance. So what I did was to take a section of 6" ABS sewer pipe and cut a tiny little crescent off of it, which I could then glue to the bottom of the leading tip while clamping it. This effectively spreads the shape out, and once the glue dries serves as a permanent fix.