Most plastic welding kits seem to use a specialized tool that looks like the child of a soldering iron and a hot glue gun that ranges from $30-150. It's nice to know that friction welding works well.

We walk you through how to repair plastic parts, step by step, this month. Read about it at hotrod.com or in the January 2013 issue of Hot Rod Magazine.

Because these welding rods are much bigger than the usual plastic filament, this extruder also has the option for a very beefy NEMA 23 motor.