SPMP (Scrap Parts Mini Pneumatic)

[TfAv1228]

The only thing I had to buy for this gun was the ball vavle. My chamber is a 12" x 1-1/2" sch40 and my barrel is 7-1/2" x 1/2" sch(something it fits in the 1/2" sch40 fittings and fits a paintball). The U is made of a 1" 90 degree elbow and inch of 1" sch40 and a 1/2" 90 degree elbow. I pressurize it using a shrader valve (I got it at Napa ask for an Industrial Tank Valve). This think packs a punch at 50 psi shooting semi frozen paintballs. I brought it up to 70 psi and then my bike pump kills itself meaning it won't go past that.

Pics below







Any comments or questions feel free.

[lordfin]

wow thats very mini

[experament_u2]

thats a nice gun kool and compact

[King_TaTer]

well anyway back on topic I would have to say that is pretty kool. oh and by the way your bike pump must be crappy because mine goes up to 130psi and it was like $5... lol

[PVC Arsenal 17]

no, not back on topic... this one's dead

....though I am curious how he got the street elbow into the pipe.

(anyone notice how I alway use those "......" a lot?)

[spud-tom]

nice gun, lot of people say to use either salenoid or piston valves. I stick with the ball valves... they are cheap and pretty fast opening when small.

[SpudStuff]

You obviously haven't used a piston valve then. They open many times faster. A ball valve almost always has a reduced port.

[Dan003400]

i like this because it is like not big lol