UPDATE 2/12/17. This part was used in the Ghostbusters Station 6 fan film. Check it out on youtube at https://www.youtube.com/watch?v=RHMUsQqLmRg
Added pre-rendered 1.32 OD.
OpenScad script now auto rotates part to printable orientation.
Added pre-rendered STL for 1" pipe and 1/2" acrylic.
A .scad file to allow a custom interface between the Ghostbuster's
proton pack thrower barrel and the acrylic tube. Edit the .scad file to get the dimensions you require. It will need rotating to be printable!!!