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

Step 10 Attach the fairing to the frame

By temporarily putting the fairing over your frame without gluing the PVC together, you can test to see where the supports end up. Use a dry erase marker to mark out where to add your points of attachment, then build up attachment points as follows: get a piece of strip plastic and glue (again using pipe glue) a pipe coupler (threaded if you want to be able to take it apart later) to it. Attach this to the frame supports from step 8, attach the fairing to the frame, and use a drill to drill a couple of tacking holes. You can either screw, rivet (probably the easiest), glue or weld the supports on at that point.

At this point it is critical to test for heel/toe clearances at the front. If you find you need a little extra curvature, you can attach a cable or string to the front of the vehicle (through a little hole drilled in the tip reinforcement) and tie that onto the frame under tension.