Nerf Swing Gate Hopper/RSCB Cap for 1/2" PVC (Mighty Shrub Typhon Remix)

Overview

This is a remix of Mighty Shrub's incredible swing gate loading door from the Typhon to fit on 1/2" PVC, so it can be used with blasters that take traditional PVC wye hoppers or RSCB's. 

Basically what this allows you to do is top off the tube continuously without any extra motions like turning a ball valve, closing a cap, twisting a lid, etc. Just pop darts into the tube and it will automatically seal behind them. It uses backpressure from the blaster firing to seal the cap against an o ring, but moves out of the way to let darts be loaded in. 

Note: V2 Uploaded Based on Current Typhon Files

Notes

• It will take considerable force to insert the door into the body. It's been a long time since I built these and I can't remember the exact order of assembly, I believe the elastic is threaded into the door first, then the o ring placed on the cap, then the door inserted into the main body? I will print another and update the assembly portion. 

• This is meant to have a tight friction fit on 1/2" PVC. Like, difficult to pull off and put on tight. 

• I have built several of these and tested them in a game and I can confirm they work well, however there are some things to watch out for:

• Be careful of overloading the tubes. It is possible for a dart to get stuck in between the door and the body in a way that is annoying to remove. Just only load in as many darts as will easily fit and it'll be fine. 

• Since it uses backpressure from firing a dart there is a limit to how long you can make these, eventually the backpressure won't be strong enough to fully seal. My normal tubes are 8 or 9 half darts but I can't really remember where the limit was, I'm guessing for most blasters 12-15 should be fine, at which point the tube kind of gets obnoxiously long anyways. For most people this shouldn't even be worth mentioning, but I have messed around with like 5 foot lengths of PVC on hoppers and RSCB's in the past (somewhere around 20-30 darts). 

• Pictures for this listing also coming soon.

Materials

• The 2 prints, the body and the door

• A length of 1/2" Sch 40 PVC Pipe

• 1 mm Elastic cord (You cannot go bigger than this, figure like 5 inches or so) 

• 1x 016 O-Ring, 5/8" ID, 3/4" OD 

Assembly

(Coming soon once I build another one to add to the pile, it's been like 11 months since I built these)