Proton Pack HGA
thingiverse
Here's a revised model of the HGA device for Ghostbusters' proton pack: It is broken down into two manageable parts to save print time. I based this model on Stefan Otto's plans found at http://www.gbfans.com/wiki/Stefan_Otto%27s_Prop_Plans. Fit an M8 nut to the base, then attach the base to the HGA tube using a strong adhesive. Secure the entire assembly onto the proton pack gearbox.
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