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First gun

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

Unread postAuthor: EBB » Fri Oct 14, 2011 3:44 pm

Hi this is my first post and my first gun me and my brother build.
Tested up to 6bar
We use a 12volt compressor for filling tires

Made out of
electric 1" sprinklervalve
7,5bar safteyvalve
refillable spraycan safteylimit 8bar
1meter 1/2" pipe for barrel
pressuregauge up to 10bar


Image

To come
new barrel of coopertubing
new trigger on the gun instead of the "black box"
some kind of loadingsystem for ammo
new reservoir
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Last edited by EBB on Fri Oct 14, 2011 4:10 pm, edited 1 time in total.

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Unread postAuthor: wyz2285 » Fri Oct 14, 2011 3:48 pm

better than my first, looks good.
you need to better the trigger set up :roll: and may be a stock? it will give some work but it usually betters the look of the gun a lot.
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CpTn_lAw wrote::D "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " :D
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Unread postAuthor: EBB » Fri Oct 14, 2011 3:51 pm

Yeah the trigger was made before we decided to make it handhold. So its little tricky to hold and fire it :)
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Unread postAuthor: mattyzip77 » Fri Oct 14, 2011 5:28 pm

Not a bad little unit there for a first. I would get rid of the electric firing unit and just add a blowgun. It will make it look niced and it will be alot easier to fire. Welcome to Spudfiles!! :D :D
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Go Bruins!!!!
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Unread postAuthor: EBB » Fri Oct 14, 2011 5:47 pm

thats someting I wonder about, why everybody modifies the sprinklervalve with a blowgun instead? The electric that we use opens fast and once we change and relocate the triggerbutton it will be easy to fire to. So whats the point?
Dont take it the wrong way it´s my toughts and I´m just a happy amateur :lol:
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Unread postAuthor: jsefcik » Fri Oct 14, 2011 5:50 pm

EBB wrote:thats someting I wonder about, why everybody modifies the sprinklervalve with a blowgun instead? The electric that we use opens fast and once we change and relocate the triggerbutton it will be easy to fire to. So whats the point?
Dont take it the wrong way it´s my toughts and I´m just a happy amateur :lol:


if a sprinkler valve is modded with a blowgun it opens alot faster, electric is slower
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Unread postAuthor: Mr.Tallahassee » Fri Oct 14, 2011 5:51 pm

Well, in most cases trading the electric actuation for a pneumatic actuation improves performance by a large margin. The vent diameter of the solenoid is much smaller than that of a blow gun typically.
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Unread postAuthor: EBB » Fri Oct 14, 2011 5:52 pm

okey then maybe I should try that on one of the spares I got laying around
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Unread postAuthor: warhead052 » Fri Oct 14, 2011 6:24 pm

If you like the electric trigger, stay with it. Unless you want to drill into the brass, don't do the blowgun addition. Can we see a video of it firing? Other than that, nice job! My first was along the same lines, but used a plastic sprinkler valve that was modded.
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Unread postAuthor: jrrdw » Fri Oct 14, 2011 7:13 pm

The blow gun gives you a trigger as well. :D
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Unread postAuthor: skishoot » Fri Oct 14, 2011 7:28 pm

I wouldn't modify the brass sprinkler valve unless you have a tap and die set because if you try to use the fitting as a tap, it well.... wont work, nice first build.
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Unread postAuthor: mattyzip77 » Fri Oct 14, 2011 8:24 pm

you shouldnt have to drill or tap anything, the solenoid must have threads, and the port that goes into should be threadded. Check it out. All you should have to do is adda closed nipple to the blowgun and your done.
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Unread postAuthor: warhead052 » Fri Oct 14, 2011 8:55 pm

mattyzip77 wrote:you shouldnt have to drill or tap anything, the solenoid must have threads, and the port that goes into should be threadded. Check it out. All you should have to do is adda closed nipple to the blowgun and your done.


Its not that easy....
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Unread postAuthor: mattyzip77 » Fri Oct 14, 2011 9:18 pm

warhead052 wrote:
mattyzip77 wrote:you shouldnt have to drill or tap anything, the solenoid must have threads, and the port that goes into should be threadded. Check it out. All you should have to do is adda closed nipple to the blowgun and your done.


Its not that easy....


It was that easy when I modded mine. Its not a regular sprinkler valve, its a solenoid valve, big difference!!!
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Unread postAuthor: Gun Freak » Fri Oct 14, 2011 9:19 pm

Lol yeah Matty that won't work.

I recommend not modding it. These metal ones do fine without modification.
Get a nice little push button trigger or something for it though.
Nice first, and welcome!
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