This is the CAD program I use to build all my 3D parts FreeCad V16, this is the rough draft version, I think I'll have to construct a guide rail system for the rear fiber optic coupler because alignment of the laser line must be 100% perfect as it relates to the fiber optic end point. 

Even though I have built in the diaphragm laser line guide, I still need a way to make final adjustments at this end.

I will have the blueprint draft drawings up soon when I have the final version finished.