Another Parametric Model Rocket Fin Alignment Tool

This is yet another customizable parametric fin alignment tool for building model rockets. This version is most useful for larger rockets, or those with through-the-tube mounted fins.

I (foolishly) designed this before searching Thingiverse, and I was shocked to see just how similar my design was to Justblair's (see http://www.thingiverse.com/thing:695599). Other than his being one piece and mine being multiple pieces, they are nearly the same, right down to the glue clearance arc. Great m