Instructions
The stupid CADspan program messed up one of my fins but im sure one can trim the base down to match the bottom of the fin. Or you can use a hot glue gun to fill in the gaps but stick some of your plastic in it instead of hot glue. Scale this up to 50mm (thats the inside diameter of 2" schedule 40 PVC pipe.) If the projectile is too big just sand it down until it fits, snug.



