most portable design?

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.
User avatar
trae08
Corporal
Corporal
Posts: 520
Joined: Sun Jul 09, 2006 2:14 pm
Location: florida

Donating Members

Sun Jul 15, 2007 4:05 pm

well as some of you may or may not know ive been planing on building a portable gun. and since the first parts should get here on the 17th and then ill start building. so since the whole gun is revolving around the word portable i was wondering what would be the most portable design? ive been leaning towards an over an under. so whats yalls input?

the dimensions are as follows.

5 ft of sdr21 golf ball barrell
16.9" of 4" for the chamber
and a modded 2 inch sprinkler valve.
Marvin the Martian: Where's the kaboom? There was supposed to be an earth-shattering kaboom!

Marvin the Martian: The Earth? Oh, the Earth will be gone in just a few seconds.
PCGUY wrote:Congrats, your the first donating member I have had to ban.
User avatar
paintballuh
Private 2
Private 2
Posts: 27
Joined: Wed Dec 14, 2005 7:39 pm

Sun Jul 15, 2007 4:13 pm

id say build an over under, then attach a bike pump to it for ultimate portability.
User avatar
trae08
Corporal
Corporal
Posts: 520
Joined: Sun Jul 09, 2006 2:14 pm
Location: florida

Donating Members

Sun Jul 15, 2007 4:15 pm

nah this is the 21st century im hooking it up to a regulated hpa tank for paint ball.
Marvin the Martian: Where's the kaboom? There was supposed to be an earth-shattering kaboom!

Marvin the Martian: The Earth? Oh, the Earth will be gone in just a few seconds.
PCGUY wrote:Congrats, your the first donating member I have had to ban.
User avatar
iPaintball
Corporal 2
Corporal 2
Posts: 695
Joined: Sun Mar 04, 2007 8:37 pm

Sun Jul 15, 2007 4:30 pm

An over and under is one of the most portable designs, but coaxials take up less space. You can get cheap 1.5" SDR 21 at Tractor Supply Co.
Summer Projects:
CO2 tank hybrid: Gotta fix the meter :(
Cane gun: Needs a pilot/fill setup
1.5" piston valve gun: Almost done
User avatar
paintballuh
Private 2
Private 2
Posts: 27
Joined: Wed Dec 14, 2005 7:39 pm

Sun Jul 15, 2007 4:30 pm

make sure you turn down the regulator...my friend blew up the regulator on his ion when he first got it. he put like 300 psi into a 200 psi gun.
User avatar
trae08
Corporal
Corporal
Posts: 520
Joined: Sun Jul 09, 2006 2:14 pm
Location: florida

Donating Members

Sun Jul 15, 2007 4:37 pm

ur friend blew up his reg or his gun?
Marvin the Martian: Where's the kaboom? There was supposed to be an earth-shattering kaboom!

Marvin the Martian: The Earth? Oh, the Earth will be gone in just a few seconds.
PCGUY wrote:Congrats, your the first donating member I have had to ban.
User avatar
spudgunnerwryyyyy
Specialist 2
Specialist 2
Posts: 261
Joined: Thu Jul 12, 2007 10:54 pm

Sun Jul 15, 2007 5:50 pm

Cut the tank and half put them side by side then use a 2" tee to with 2 elbows to get the tanks connected to the valve then do over under.

Looks like this looking at the barrel.

( ) Barrel
( ) ( ) Chamber
User avatar
f.c
Specialist 3
Specialist 3
Posts: 340
Joined: Sun Jul 08, 2007 2:40 am

Sun Jul 15, 2007 6:35 pm

well yes you will need an air supply. but maybe you're pipe size is to big ?.
User avatar
lukemc
Corporal
Corporal
Posts: 565
Joined: Sun Feb 25, 2007 8:48 am
Location: NY

Sun Jul 15, 2007 6:55 pm

2" sprinkler!! thats a very expensive valve especily when piston in tee valve is definetly better in all aspects because its over under
"Those who are different change the world. Those who are the same keep it that way"
User avatar
spudthug
Corporal 5
Corporal 5
Posts: 936
Joined: Mon Feb 26, 2007 9:02 pm
Location: johnsonburg, Pa USA
Contact:

Sun Jul 15, 2007 8:19 pm

You can get cheap 1.5" SDR 21 at Tractor Supply Co.
hmm i wonder who found that out :wink:

btw yes make an over under but why not make it a piston valve? cost alot less and it will be alot more powerful..
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
frankrede
Sergeant Major 2
Sergeant Major 2
Posts: 3220
Joined: Thu Jul 20, 2006 9:47 pm
Has thanked: 1 time
Been thanked: 1 time

Sun Jul 15, 2007 8:32 pm

sdr 21 pipe would not be good in a coaxial.
Its thinwall and teh pressure would cause it to fail.
Current project: Afghanistan deployment
User avatar
trae08
Corporal
Corporal
Posts: 520
Joined: Sun Jul 09, 2006 2:14 pm
Location: florida

Donating Members

Sun Jul 15, 2007 8:44 pm

the 2 inch valve was free
the sdr is sleeved in sch 80.
and ive never made a piston valve before.
Marvin the Martian: Where's the kaboom? There was supposed to be an earth-shattering kaboom!

Marvin the Martian: The Earth? Oh, the Earth will be gone in just a few seconds.
PCGUY wrote:Congrats, your the first donating member I have had to ban.
NoXi
Specialist
Specialist
Posts: 130
Joined: Sun Dec 10, 2006 1:23 pm

Sun Jul 15, 2007 9:12 pm

paintballuh wrote:make sure you turn down the regulator...my friend blew up the regulator on his ion when he first got it. he put like 300 psi into a 200 psi gun.
you cant blow up the reg., but you can blow up the solenoid in the gun. The reg is able to take 300 psi easy, jus that the solenoid in the gun isnt made able to take that much.
User avatar
MrCrowley
Moderator
Moderator
Posts: 10078
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Been thanked: 3 times

Sun Jul 15, 2007 11:18 pm

Well you have to make a piston sometime :P

I say if your staying with the sprinkler valve an over-under design using street elbows to cut down the gap between barrel and chamber.
User avatar
jackssmirkingrevenge
Five Star General
Five Star General
Posts: 26179
Joined: Thu Mar 15, 2007 11:28 pm
Has thanked: 543 times
Been thanked: 319 times

Donating Members

Mon Jul 16, 2007 1:15 am

hectmarr wrote:You have to make many weapons, because this field is long and short life
Post Reply