Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 78 users online :: 4 registered, 0 hidden and 74 guests


Most users ever online was 155 on Mon Aug 15, 2016 1:40 am

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

Slim Biggins - Sawn-Off QEV Launcher

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
Sponsored 
  • Author
    Message

Slim Biggins - Sawn-Off QEV Launcher

Unread postAuthor: MrCrowley » Wed Apr 23, 2008 10:29 pm

New Video [10/05/2010]:
[youtube]http://www.youtube.com/watch?v=61PbVrchFyI[/youtube]

I was getting bored over the holidays so I gave the <A HREF="http://www.spudfiles.com/forums/viewtopic,p,123928.html#123928">SGP</a> a little make over :)

The main setup:

Barrel: 1400mmx15mm paintball barrel
Chamber: 1.5"x12" and ~1"x12"
Valve: 3/4" Quick Exhaust Valve
Pilot Valve: 1/4" ball valve
Fill Valve: Same 1/4" ball valve
Operating Pressure: 80-115psi (150psi when I make a pump)
Ammo: .68 paintballs

The other variation, is more of a BtB tribute sawn-off style (without the high pressure :( )

I don't have any damage pictures but I did do a few test shots.
At 90psi with the long barrel, paintballs go through one side of my mini-fridge. With the short barrel at 90psi, the mouseballs also go straight through.

Just thought of a name: Slim Biggin's :D

Oh and yeah she's not very pretty, got no spraypaint to paint the pilot setup and the teflon tape on the chamber is a few months old and has yellowed :shock:

Anyway, here she is:
  • 0

Attachments
Closeup - Long.JPG
Overview - Long.JPG
Breach - Closed.JPG
Breach - Open.JPG
Top.JPG
Overview - Short.JPG
01IMG_7408.JPG
New look. Showing off its golfball gun potential.
Last edited by MrCrowley on Mon May 10, 2010 12:10 am, edited 2 times in total.
User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: biggsauce » Wed Apr 23, 2008 10:46 pm

Nice name for a nice cannon

Puts a paintball through a side of a mini fridge...
To say the least, OUCH
  • 0

User avatar
biggsauce
Captain
Captain
 
Posts: 338
Joined: Thu Jun 07, 2007 9:42 pm
Reputation: 0

Unread postAuthor: elitesniper » Wed Apr 23, 2008 10:48 pm

Cool Mr.C, I love the name, nifty high powered plinker eh?
  • 0

User avatar
elitesniper
Brigadier General
Brigadier General
 
Posts: 1090
Joined: Sat Oct 13, 2007 8:40 pm
Reputation: 0

Unread postAuthor: MrCrowley » Wed Apr 23, 2008 11:00 pm

Thanks guys, and yeah it's pretty damn powerful.

The paintballs were denting my fence pretty badly too, some cracking the otherside. I've actually got the gun in my lap as I type now, I love the look and feel of the 'sawn-off' setup :)
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: Lentamentalisk » Wed Apr 23, 2008 11:30 pm

Wow, that has got to be the ugliest gun you have made yet :) Still, it more than makes up for it in power. Double thumbs up!
  • 0

Do not look back, and grieve over the past, for it is gone;
Do not be troubled about the future, for it has not yet come;
Live life in the present, and make it so beautiful that it will be worth remembering.
User avatar
Lentamentalisk
Brigadier General
Brigadier General
 
Posts: 1202
Joined: Tue Aug 07, 2007 5:27 pm
Location: Berkeley C.A.
Reputation: 0

Unread postAuthor: MrCrowley » Wed Apr 23, 2008 11:38 pm

Lentamentalisk wrote:Wow, that has got to be the ugliest gun you have made yet :)
Hell yeah! :) I was going to name it the Ugly Duckling, but I like Slim Biggins better :wink:

I'm thinking of painting it, the whole pilot volume setup is old parts that have been painted and then scratched over so they look like sh|t.
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: Gippeto » Wed Apr 23, 2008 11:47 pm

The sawed off look s really starting to appeal. Nice job Mr. C :)
  • 0

"It could be that the purpose of your life is to serve as a warning to others" – unknown

Liberalism is a mental disorder, reality is it's cure.
User avatar
Gippeto
Donating Member
Donating Member
 
Posts: 2393
Joined: Sat Jan 19, 2008 10:14 am
Location: The Great White North...Canada eh!
Reputation: 11

Sponsored

Sponsor
 


Unread postAuthor: jook13 » Wed Apr 23, 2008 11:50 pm

thats a really neat gun. tis a shame its used at such pressures, with most everything being rated as much higher.
  • 0

I like to play blackjack. I'm not addicted to gambling, I'm addicted to sitting in a semi-circle.
User avatar
jook13
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 434
Joined: Mon Jan 21, 2008 10:39 pm
Location: Prescott Arizona
Reputation: 0

Unread postAuthor: MrCrowley » Thu Apr 24, 2008 12:02 am

Thanks Gippeto and jook13 :)

Yeah I know, i'd take it up to 200psi, doesn't bother me even though the QEV has only a 150psi rating. :P
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: XxtriviumxX » Thu Apr 24, 2008 3:26 am

Hehe that is one incredibly ugly gun. :lol:

But its not the looks that count... Its the carnage, and that thing is a beast. :twisted:
  • 0

User avatar
XxtriviumxX
Master Sergeant
Master Sergeant
 
Posts: 173
Joined: Wed Apr 18, 2007 9:54 pm
Location: Australia
Reputation: 0

Unread postAuthor: MrCrowley » Thu Apr 24, 2008 5:28 am

Thanks, I decided i'm going to paint it, for the intimidating factor and I can't stand to have such a shotty looking cannon :D
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: psycix » Thu Apr 24, 2008 9:59 am

Ah thats a nice one.
Though whats the PVC barrel needed for?
Just go all-metal :)
  • 0

Till the day I'm dieing, I'll keep them spuddies flying, 'cause I can!

Spudfiles steam group, join!
User avatar
psycix
Donating Member
Donating Member
 
Posts: 3684
Joined: Mon Jun 25, 2007 7:12 am
Location: The Netherlands
Reputation: 0

Unread postAuthor: JDP12 » Thu Apr 24, 2008 10:54 am

very nice looking gun MrCrowley nice job on it
  • 0

"Some say his pet elephant is pink, and that he has no understanding of "PG rated forum". All we know is, he's called JSR. "
User avatar
JDP12
Major General
Major General
 
Posts: 1943
Joined: Fri Mar 30, 2007 8:34 pm
Reputation: 0

Unread postAuthor: Brian the brain » Thu Apr 24, 2008 1:02 pm

Eehmm..The sawed-off style requires a reservoir as snug under the barrel as possible ( use an elbow wich threads right into the valve)
Some trimming might be needed.

But absolute essential is the ballvalve trigger and bend as handle.

Other than that it does seem like a very nice gun to play around with.
Just not something I would compare to the sawed-off when it comes to looks.

Coming to think of it, I have seen a lot of "copies" that did not even look like it.
Not that that's a bad thing though.
I like the use of the 45's
  • 0

Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
User avatar
Brian the brain
Moderator
Moderator
 
Posts: 3494
Joined: Mon Dec 05, 2005 2:06 am
Location: Holland
Country: Netherlands (nl)
Reputation: 29

Unread postAuthor: MrCrowley » Thu Apr 24, 2008 5:50 pm

psycix wrote:Ah thats a nice one.
Though whats the PVC barrel needed for?
Just go all-metal :)

Thanks. And because copper is expensive and hard to get. Well not hard to get, I just have to go for a drive for 40minutes so I can get an off-cut of 1m.

Brian the brain wrote:Eehmm..The sawed-off style requires a reservoir as snug under the barrel as possible ( use an elbow wich threads right into the valve)
Some trimming might be needed.

Yeah I was thinking about that, but nothing threads all the way into a QEV. It was really bugging me, I tried a bunch of fittings too.

Brian the brain wrote:But absolute essential is the ballvalve trigger and bend as handle.

Other than that it does seem like a very nice gun to play around with.
Just not something I would compare to the sawed-off when it comes to looks.

I actually had a spare 1" sprinkler valve piloting it at one stage :lol:
Definitely not, it is bloody ugly and fittings aren't exactly snug like on your sawn-offs. And your Sawn-offs have piston valves, which I'm tempted to put on this. And use the QEV for something else. So once I make a pump, I can go high pressure. Tempted.

Brian the brain wrote:Coming to think of it, I have seen a lot of "copies" that did not even look like it.
Not that that's a bad thing though.
I like the use of the 45's

Well it's not like I set out to copy your design or anything, just rotating the chamber 180 from it's last design, ended up like a sawn-off because of the short length, and everyone knows sawn-offs are automatically directed at you :wink: :)

Thanks, those galv fittings were a b|tch to line up, at one stage I was sitting on the plumbing wrench with all my weight and it didn't move one bit. I had to get out the sledge :D
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Next

Return to Pneumatic Cannon Database

Who is online

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], Yahoo [Bot]

Reputation System ©'