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anybody know how to let more air out of a blowgun??

Post about things you have launched or thought about launching. Also post about various materials used for building cannons. No posts about explosive projectiles!
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anybody know how to let more air out of a blowgun??

Unread postAuthor: mr.potatohead » Sat Jul 14, 2012 2:01 pm

anybody know how to let more air out of a blowgun with a relitivly short pull or any other blowgun modifications
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Unread postAuthor: jackssmirkingrevenge » Sat Jul 14, 2012 2:16 pm

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Unread postAuthor: 8tonsemi » Sat Jul 14, 2012 2:17 pm

Hey here a link to mrc45's post on how to modify a blow gun it should do the trick http://www.spudfiles.com/forums/how-to- ... 19189.html

Hope it helps.
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Unread postAuthor: mr.potatohead » Sat Jul 14, 2012 3:56 pm

i did it and it leaked
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Unread postAuthor: MrCrowley » Sat Jul 14, 2012 4:51 pm

mr.potatohead wrote:i did it and it leaked

At least I put a warning :wink:
WARNING: If you mod your blowgun following this tutorial, do not blame me if it leaks. I have done this several times and have never got a leak. Though at 400PSI, the trigger is a bit harder to pull


Make sure that there isn't any debris (teflon tape, metal shards, dust) in the seals or on the valve seat. The reason it will leak is because you drilled the hole too big, I imagine.

I had completely forgotten about that tutorial, I probably could make a better one now but I'm not really interested. There are pneubs out there who would have more enthusiasm doing it than I :P


P.S. Is that the thread where the whole 'cheap batteries' thing started?
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Unread postAuthor: 8tonsemi » Sat Jul 14, 2012 5:02 pm

I made one and it worked fine. For testing I hooked it up to my compressor and it released more air faster than the un modified blow gun. Good tutorial .
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Unread postAuthor: mattyzip77 » Sat Jul 14, 2012 5:50 pm

Try blowing it out with another blowgun if you have one theres probably a bunch of shizznitt in it...
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Unread postAuthor: mr.potatohead » Sat Jul 14, 2012 6:34 pm

yeah i fixed it right after that comment its because i drilled into the puch pin but fixed it with solder
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Unread postAuthor: 8tonsemi » Sat Jul 14, 2012 6:53 pm

I know this is a little of topic but. The blow gun i use doesn't say what pressure its rated to but I use it to 125psi. do you think its safe.
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Unread postAuthor: MrCrowley » Sat Jul 14, 2012 7:21 pm

8tonsemi wrote:I know this is a little of topic but. The blow gun i use doesn't say what pressure its rated to but I use it to 125psi. do you think its safe.
Sorry to make an example of you here, but:
1: How do we know what type of blowgun you use?
2: Safe for what? I'm sure the blowgun is safe unless you try and eat it whole or tie a piece of rope around it and whirl it around your head like a mace to try and hurt people with. I probably wouldn't try and poke your eye out with it either. Apart from that, it's probably safe if you just leave it alone and let it be. :roll:


edit: look through the pneumatic showcase section for cannons that use the same blowgun as yours. If people are using them at above 125PSI (it will probably say so in the thread), then one could assume it is reasonably safe for pressures above 125PSI. If you've searched dozens of topics and still can't find your blowgun, you could try giving us a model number, brand name or image from Google of the blowgun and then formulating an appropriate question such as: "this blowgun is rated for 125PSI, but I want to use it at 200PSI. Do you think I can use it safely at those pressures?".
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Unread postAuthor: 8tonsemi » Sat Jul 14, 2012 7:26 pm

Sorry i meant if it was safe for that pressure. And is it? I know you already kind of answered that I just wanted a second opinion after I gave more details about it.

And when your at it whats manometric metering JK lol.
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Unread postAuthor: MrCrowley » Sat Jul 14, 2012 7:28 pm

I would assume it is perfectly safe at 125PSI but seeing as I don't know what kind of blowgun it is I can only speculate. If it's made of metal, it wont fail catastrophically at 125PSI; worse that will happen is the seals will fail and your cannon would fire without warning.
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Unread postAuthor: 8tonsemi » Sat Jul 14, 2012 7:29 pm

Thanks for the help.


Aslo whats a good high pressure blow gun. I don't know if you can tell me though because your not in the US.
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Unread postAuthor: jsefcik » Sat Jul 14, 2012 7:32 pm

MrCrowley wrote:
8tonsemi wrote:I know this is a little of topic but. The blow gun i use doesn't say what pressure its rated to but I use it to 125psi. do you think its safe.
Sorry to make an example of you here, but:
1: How do we know what type of blowgun you use?
2: Safe for what? I'm sure the blowgun is safe unless you try and eat it whole or tie a piece of rope around it and whirl it around your head like a mace to try and hurt people with. I probably wouldn't try and poke your eye out with it either. Apart from that, it's probably safe if you just leave it alone and let it be. :roll:


edit: look through the pneumatic showcase section for cannons that use the same blowgun as yours. If people are using them at above 125PSI (it will probably say so in the thread), then one could assume it is reasonably safe for pressures above 125PSI. If you've searched dozens of topics and still can't find your blowgun, you could try giving us a model number, brand name or image from Google of the blowgun and then formulating an appropriate question such as: "this blowgun is rated for 125PSI, but I want to use it at 200PSI. Do you think I can use it safely at those pressures?".



im sorry but thats funny are you trying to eat it? imfao
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Unread postAuthor: Technician1002 » Sat Jul 14, 2012 7:44 pm

If you want more air through a blowgun, the above posts are on track. If you want to vent more air for a piston pilot, than a blowgun on a QEV will do the trick nicely and flow at a much higher rate than a modified blowgun.
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