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I’m a huge Fallout fan, so I figured this build would fit the universe perfectly. I edited the original File (sold by Germy_Ballswell here: https://cults3d.com/:4880393) to accept Standard Nerf Barrels (13mm ID / 16mm OD). Used the Toilet Plunger that Germy linked in his file’s description. Made Custom Vault Tec side plates and modeled my own custom Stock Adapter for another stock adapter file found here on Printables: https://www.printables.com/model/807585-nerf-stock-without-name. I haven’t released the files for my personal remix for it yet, maybe I will later. I also modeled a custom rounded picatinny rail that accepts Zipties to fit my forward grip on the metal canister. 3D printed a BCAR to add some spin and stabilization to the dart as it leaves the barrel as well.
I ran into some air leak issues after hammering the metal barrel into the 3D printed barrel. Fixed it by wrapping the entire thing in electrical tape and filling any additional holes with CA Glue. Just used the soap bubble test you would use on tires to find all the holes that needed sealing. Nonleaks after that. Thanks to Jeremy for making the original file that inspired this project!