my first cannon ****update***** Damage video

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
Fat Joe 91
Private 2
Private 2
Posts: 25
Joined: Thu May 22, 2008 8:48 am
Location: united states

Sat Jun 07, 2008 4:51 pm

this is my first cannon it is made out of SCH 40 pipe, a modded 1 inch sprinkler valve. the bore is .5 inch pvc pipe and the chamber is 3 inch sch 40 pipe. This gun i made with a removable bi-pod and removable silencer. the highest i have shot this at was 120 psi and im trying to go higher on the pressure



[youtube][/youtube]
Attachments
old metal red wagon oim shooting at
old metal red wagon oim shooting at
All the ammo for now
All the ammo for now
silencer
silencer
chamber
chamber
The Cannon
The Cannon
Last edited by Fat Joe 91 on Sat Jun 14, 2008 8:38 pm, edited 4 times in total.
User avatar
MrCrowley
Moderator
Moderator
Posts: 10078
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Been thanked: 3 times

Sat Jun 07, 2008 5:16 pm

Looks like you need some help with uploading the pictures :)

http://www.spudfiles.com/forums/posting ... 13190.html
User avatar
blind909
Corporal 4
Corporal 4
Posts: 828
Joined: Thu Aug 02, 2007 6:06 pm
Location: Las Vegas, NV
Contact:

Sat Jun 07, 2008 9:48 pm

Nice gun, but may I ask is that 1/2 inch barrel restricting flow, because 3 inch to 1/2 inch is a HUGE step down, but as to everything else, its very clean and simple.
<a href="http://www.danasoft.com"><img src="http://www.danasoft.com/citysign.jpg" border="0"></a><div>
THIS STATES WHERE YOU LIVE, NOT ME, IT SAYS WHERE YOU LIVE BASED ON YOUR IP ADRESS.
User avatar
MrCrowley
Moderator
Moderator
Posts: 10078
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Been thanked: 3 times

Sat Jun 07, 2008 9:50 pm

That's not half bad for a first. Good job. Keep it up, i'm sure in no time you'll be building some great cannons.
Spedy
Specialist
Specialist
Posts: 108
Joined: Thu Jun 21, 2007 4:15 pm

Sat Jun 07, 2008 11:06 pm

Thats a REALLY nice pneu you got there! I would have tried something like this for a first cannon but large pressure rated pipe is lacking around here =/

Great paint job btw! *highfive*
__________________________________________________
I am going to put this at the bottom of my posts until I get a REAL signature.

Spedy, The self-declared mini specialist
User avatar
starman
Sergeant Major
Sergeant Major
United States of America
Posts: 3027
Joined: Wed Dec 12, 2007 12:45 am
Location: Simpsonville, SC

Donating Members

Sat Jun 07, 2008 11:56 pm

Decent pneumatic there, especially for your first effort.

Re. the first pic you posted, it's so out of focus it's basically useless. Take another one in focus...back away a little if you have to to get it. The other pics are fine...thanks for including them.
User avatar
MrCrowley
Moderator
Moderator
Posts: 10078
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Been thanked: 3 times

Sun Jun 08, 2008 12:12 am

Yeah you need to put it on macro setting or if there is a flower symbol, press that and then zoom in on the object from about half a meter away.
ImHUGEnJAPAN
Private 4
Private 4
Posts: 77
Joined: Thu Apr 03, 2008 12:08 pm

Mon Jun 09, 2008 4:04 pm

Not to bad for a first. You mentioned that you want to go higher on the pressure. What is the pressure rating on your sprinkler valve? Certainly the Air chamber can handle more pressure, but the valve might tear if you go too much higher. I have a rainbird cp-100 on my cannon and it's only rated to 150psi. I can't imagine your valve is rated that much higher than what your currently operating it at.
User avatar
Fat Joe 91
Private 2
Private 2
Posts: 25
Joined: Thu May 22, 2008 8:48 am
Location: united states

Mon Jun 09, 2008 5:51 pm

i took one of my other simpler ones up to 160 but that was the only compresser that could handle that
User avatar
STHORNE
Sergeant 3
Sergeant 3
Posts: 1208
Joined: Wed Feb 14, 2007 7:50 pm
Location: Kewaunee, Wisconsin

Donating Members

Mon Jun 09, 2008 5:53 pm

looks great. but that silencer doesn't look very sturdy :wink:

nice job for your first though!
Forum Rules - follow them or else!
“Happiness is the meaning and the purpose of life, the whole aim and end of human existence”
User avatar
Fat Joe 91
Private 2
Private 2
Posts: 25
Joined: Thu May 22, 2008 8:48 am
Location: united states

Mon Jun 09, 2008 7:31 pm

no it isnt but it does silence the shots
User avatar
starman
Sergeant Major
Sergeant Major
United States of America
Posts: 3027
Joined: Wed Dec 12, 2007 12:45 am
Location: Simpsonville, SC

Donating Members

Mon Jun 09, 2008 7:36 pm

SOoooo, uhhh what about that improved photo there Fat Joe? Otherwise you should just remove the fuzzy one from the post.
User avatar
Fat Joe 91
Private 2
Private 2
Posts: 25
Joined: Thu May 22, 2008 8:48 am
Location: united states

Mon Jun 09, 2008 7:37 pm

oooh sorry i have to take that off
User avatar
rp181
Sergeant
Sergeant
Posts: 1090
Joined: Thu Dec 13, 2007 8:47 pm
Contact:

Mon Jun 09, 2008 7:38 pm

Nice cannon.

The only thing is you shouldve moved the gauge and fill valve back, its better to have them through 2 layers of PVC.
User avatar
STHORNE
Sergeant 3
Sergeant 3
Posts: 1208
Joined: Wed Feb 14, 2007 7:50 pm
Location: Kewaunee, Wisconsin

Donating Members

Mon Jun 09, 2008 7:42 pm

Well, if he used a tap&die set and threaded the holes correctly (using grease) and used Teflon tape, he shouldn't have any problems as far as pipe strength.

But yeah, it always is better to to the 2-layer method. A lot safer.
Forum Rules - follow them or else!
“Happiness is the meaning and the purpose of life, the whole aim and end of human existence”
Post Reply