need some help

Show us your pneumatic spud gun! Discuss pneumatic (compressed gas) powered potato guns and related accessories. Valve types, actuation, pipe, materials, fittings, compressors, safety, gas choices, and more.
winters921
Private
Private
Posts: 4
Joined: Sun Jun 03, 2007 12:23 pm

Sun Jun 03, 2007 1:08 pm

i would like to make a nerf pocket rocket shooter i have got a 3/4 sprinkler valve i have modded it already. i would like it to be stright but small any ideas. i play semi pro scenario paintball and will use this gun to take out paintball tanks.
User avatar
hi
Staff Sergeant 2
Staff Sergeant 2
Posts: 1619
Joined: Thu Feb 01, 2007 9:28 pm

Sun Jun 03, 2007 1:17 pm

all you need is:

a 2'' to 3/4'' bushing.

3/4'' pipe

2'' pipe.

2'' coupler.

3/4'' male adaptor

3/4'' nipple.

2'' end cap

aand about $10 for the parts above. good luck.
"physics, gravity, and law enforcement are the only things that prevent me from operating at my full potential" - not sure, but i like the quote

you know you are not an engineer if you have to remind yourself "left loosy righty tighty"
winters921
Private
Private
Posts: 4
Joined: Sun Jun 03, 2007 12:23 pm

Sun Jun 03, 2007 2:28 pm

what should the barrel be from what i hear 2 inch wide is good but i can make it what ever i want right??

and how about the air chamber
User avatar
hi
Staff Sergeant 2
Staff Sergeant 2
Posts: 1619
Joined: Thu Feb 01, 2007 9:28 pm

Sun Jun 03, 2007 2:53 pm

i ment for the 2'' to be the chamber and the 3/4'' the barrel. its your gun, you deside.

i was just saying that if i built it thats how would do it.
"physics, gravity, and law enforcement are the only things that prevent me from operating at my full potential" - not sure, but i like the quote

you know you are not an engineer if you have to remind yourself "left loosy righty tighty"
User avatar
spudthug
Corporal 5
Corporal 5
Posts: 936
Joined: Mon Feb 26, 2007 9:02 pm
Location: johnsonburg, Pa USA
Contact:

Sun Jun 03, 2007 3:01 pm

@ hi

he wants it to be able to shoot nerf rockets...dont they fit in 1 1/2? or maybe 2 but iahvent ever shot one..ask someone who shoots them alot
4" piston valved cannon-half done..( i spilt my cement...)

Hybrid- 75% done. need to build propane holder and drill/tap sparkplug hole..
User avatar
noname
First Sergeant 4
First Sergeant 4
Posts: 2698
Joined: Mon Apr 10, 2006 9:19 pm
Location: Bay Area, CA

Sun Jun 03, 2007 5:04 pm

Building from the back to the front:
2" End Cap
2 feet of 2" PVC
2" Coupler
2" x 3/4" bushing
3/4" PVC (2" long)
3/4" male adapter
3/4" sprinkler valve
3/4" male adapter
3/4" PVC (2" long piece)
2" x 3/4" bushing
2" coupler
3 feet of 2" PVC
Shouldn't cost more than $30, and $30 is Bay Area prices, almost anywhere else will be much cheaper.
winters921
Private
Private
Posts: 4
Joined: Sun Jun 03, 2007 12:23 pm

Sun Jun 03, 2007 5:39 pm

sounds good turns out a nerf rocket has a two inch dia i will be doing this over the corse off this week i would also like to know how to fit a pressure gauge into that. at my local paintball field i will have to chrono it so i need to know an exact pressure so i can see what the perfect chrono will be. thanks for the help
User avatar
noname
First Sergeant 4
First Sergeant 4
Posts: 2698
Joined: Mon Apr 10, 2006 9:19 pm
Location: Bay Area, CA

Sun Jun 03, 2007 6:54 pm

Pressurize it with a bike pump that has a pressure guage on it.
User avatar
hi
Staff Sergeant 2
Staff Sergeant 2
Posts: 1619
Joined: Thu Feb 01, 2007 9:28 pm

Sun Jun 03, 2007 8:42 pm

"physics, gravity, and law enforcement are the only things that prevent me from operating at my full potential" - not sure, but i like the quote

you know you are not an engineer if you have to remind yourself "left loosy righty tighty"
Post Reply