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.
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sgort87
- Corporal 5

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- Joined: Sun Sep 18, 2005 10:32 am
- Location: Lockport, Illinois
Sun Oct 15, 2006 4:00 pm
So here it is. I finally have a good model of the Mauler valve and I hooked it up to a 3'x4" chamber and a 5' golf ball barrel.
<img src="
http://www.spudfiles.com/uploader/uploa ... auler6.JPG">
This thing is fucking loud as all hell and the kick-back is amazing. If the barrel is taken off and the gun is pointed straight down it will shoot itself about a foot up. And remember that the valve is about 3 feet away from the ground. (I'll get video of that later.)
I will post some more pictures of the valve itself later but in the meantime here are videos.
http://media.putfile.com/mauler1
http://media.putfile.com/mauler2
http://media.putfile.com/mauler3
http://media.putfile.com/mauler4
The valve is a 2" porting barrel-sealer (Yes John, it's a barrel-sealer

) that can be piloted through a 1/4" ball valve and male quick-disconnect. The whole thing is housed in a 2.5" tee and doesn't extend further. 12 screws hold the back cap in and allow piston service. For much much better performance I will be making the hollow piston unscrewable and install a check valve in it so the equalization holes will not affect pilot performance. In theory, one should be able to pilot this valve through a 1/16" hole.
Last edited by
sgort87 on Mon Nov 20, 2006 1:41 am, edited 5 times in total.
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ProfessorAmadeus
- Sergeant

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- Location: texas
Sun Oct 15, 2006 4:36 pm
Awesome! That really does have a kick to it! Great job on the valve and in video 3 did you miss or did it go strait through?
Insomniac wrote:Hey why am I a goose???? Why not somthing a little more awe inspireing, like an eagle or something? LOL
SOO CUTE!! OMG!! I COULD JUST LICK YOU!!
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sgort87
- Corporal 5

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- Location: Lockport, Illinois
Sun Oct 15, 2006 4:43 pm
It actually hit the very very top of the board, chipped it off, flew upwards, and took out a branch.
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ProfessorAmadeus
- Sergeant

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Sun Oct 15, 2006 4:49 pm
I have one question though. I see lots of valves that use screws to be able to access the piston, but how do you get it to seal? Is it seated on an o-ring?
Insomniac wrote:Hey why am I a goose???? Why not somthing a little more awe inspireing, like an eagle or something? LOL
SOO CUTE!! OMG!! I COULD JUST LICK YOU!!
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sgort87
- Corporal 5

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- Location: Lockport, Illinois
Sun Oct 15, 2006 5:18 pm
There is an o-ring around the back plug that seals against the inside of the tee.
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unipa
- Private

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Sun Oct 15, 2006 5:35 pm
aney photos of the inside of that thing
and nice job that looks real good
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MrCrowley
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Sun Oct 15, 2006 7:37 pm
wow nice cannon gort! good to see you getting into more pneumatics. i love barrel sealers

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rna_duelers
- Staff Sergeant 3

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Sun Oct 15, 2006 8:05 pm
Nice picture of the valve,i cant watch the movies(dial-up)Is there any chance of more pictures?And nice piston gun,gota love pistons.
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sgort87
- Corporal 5

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Sun Oct 15, 2006 11:41 pm
The first video is just longer than the others so it takes longer to load.
Yeah, barrel sealers are my favorite valve type. They are so powerful and can be anywhere from easy as hell to hard as hell to make. These definately lean to the hard as hell side. It took quite a few months and a number of dollars I'd rather not know to perfect the design. I've really got it down to a science now and I hope many people will enjoy Mauler valves.
I will be able to post some more pictures of the valve tomorrow. I don't have any on hand of the updated design. I'm reluctant to post pictures of the inside for the same reason Joel is about the Supah valve. Nobody really likes to show how their product really works. But maybe I will anyway. Who knows, maybe it will inspire more sales...
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killagorrila99
- Sergeant 2

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- Location: Australia.
Mon Oct 16, 2006 12:48 am
Lol I can think of more worshipable people than some guy from a potato cannon forum. Lol anyways I like the look of the valve, If you gut a 1 inch burst disk exaust it would improve perfomance a greater deal. All in all, loverly job there, Gort!
"I'm sorry, Mr.Bush cant come to the phone right now, He's playing cleudo with Mr. Cheney And he has him in the Cupboard with a broom stick" -White house receptionist.
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MrCrowley
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Mon Oct 16, 2006 1:11 am
but it still could trigger randomly, well not randomly but its hard to get an exact pressure rating for the material you use and you cant time the exact time you want it to fire.and its more of a hassle and you cant fill up through it as with a quick connect you can use it to fire and ill up.
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haulinick
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Mon Oct 16, 2006 1:54 am
I just have to say that is a clean looking valve. I can't see the vids at the moment cause my mac is picky. But by the looks of the homework you have done it probably kicks pretty good. Nice work gort.
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rna_duelers
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Mon Oct 16, 2006 6:12 am
Gort you have got some respect here.Are these valves going to be sold?Like joel does?