Mentos-Diet Coke Cannon Pin Lock & Adapter

I printed Bluemetal's DC-M Cannon for use at the Perot Museum of Nature & Science and loved how it worked. Only problem is after a few uses, the pin tends to work itself out resulting in spray emitting from the hole! So I designed a pin lock to stop the pin from being fully extracted. Just print and super glue onto the pin after it is in place. I positioned it so the smooth (build plate) sides of each piece were towards each other to give a better glue surface.

I also made an adapter tha