Topic: FANG 4
On and off for the past year or so I have been designing what I have designated FANG 4. As I graduate in about a month, I should start having more free time, so I should be able to actually start fabricating something then.
I have some old FANG 4 stuff from last year in this directory: http://trettel.org/fang4/
Included is a side view of the positions of most elements in FANG 4. Precisely what is going on in the drawing is not clear unless I take the time to explain, which I won't do here as I'm going to make a 3D model later. (Sorry!)
Back last year I spent a long time writing out precisely what the goals of the FANG project are. I tried to be as comprehensive as possible. I will detail these goals later as I review what I worked on then. I forgot the details.
FANG 4 will be very similar to FANG 1 in some respects. I intend to use basically the same advancement mechanism with some improvements. I think I gave up on the projectile pusher design too easily, and I'm excited about testing it out again.
However, FANG 4 will be very different than my past projects. Firstly, I do intend to make something that is at least reasonably war practical. FANG 1 was really just a test that never was completed. FANG 2 never was completed. FANG 3 wasn't even operational.
FANG 4 will also incorporate new ideas. I want to use epoxy casting or epoxy putty and aluminum tubing to construct a lightweight air reservoir. The air reservoir should be just large enough to get a certain number of shots, the precise numerical value of which I have not decided yet. I suspect when I do a war test, how many shots I should have in reserve will be more obvious and I can design the magazine and air reservoir with this constraint in mind.
I'll also be using a different directional control valve than I did in FANG 1, and I might not use the Clippard MJVO-3 valve I have used in the past because it isn't the best valve to use with tubing.
I've been investigating homemade pumps so I can charge the gun on the fly. Previously I had planned to use a large tank that would have enough air for an entire round, but I decided to reduce the number of shots and add a hand pump.
I am still debating whether or not to use the Clippard JEV series as the QEV or a larger Deltrol QEV from McMaster-Carr. Ultimately what I will use will depend on how the gun performs in tests.
So... there's approximately where the project stands. I welcome questions, ideas, criticisms, etc.
As for FANG 5... it's not on my radar yet, but I'm thinking about cloning PVC Arsenal's Archangel.