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are my plans any good?

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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Unread postAuthor: starman » Sat Feb 16, 2008 9:26 pm

bluerussetboy wrote: make sure to use a bike pump and not a compressor. compressors are for lazy,weak people.


Man, this is like sending the new guy on a worksite to the toolshed to fetch the "skyhook".... Come on now, if you are fortunate enough to have access to a compressor, by all means use it. This is the 21st century after all.
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Unread postAuthor: Novacastrian » Sat Feb 16, 2008 9:39 pm

starman wrote:
bluerussetboy wrote: make sure to use a bike pump and not a compressor. compressors are for lazy,weak people.


Man, this is like sending the new guy on a worksite to the toolshed to fetch the "skyhook".... Come on now, if you are fortunate enough to have access to a compressor, by all means use it. This is the 21st century after all.


Don't forget the left-handed hammer whilst you are there!
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Unread postAuthor: bluerussetboy » Sun Feb 17, 2008 9:06 am

most
homeowner compressors will only go up to 125 psi,
job site compressors up to 140 psi,
a quality bike pump up to 160 psi,
a Max AKHL1050E PowerLite™ 400 PSI High Pressure Air Compressor(~$1600) up to 400 psi,:D

the greater the psi the farther the spud will go and a bigger bang. the pride and satisfaction pilgor will have when filling his monstrosity up by the good old fashioned way will also be immense. if he's not going to use a sprinkler valve, he shouldn't use a compressor. hard work will make an honest man.

shame on you guys for teaching this young lad the lazy way :wink: :D
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Unread postAuthor: DYI » Sun Feb 17, 2008 9:18 am

Gee, around here your average homeowner compressor does 150 psi. And I, for one, would rather have a 150 psi compressor than a 160 psi bike pump, because 10 psi doesn't help a whole lot.

Of course you could always get a compressor tank and use a bike pump to fill it. It's a great workout, especially if the tank leaks (believe me, I've tried it :lol: )
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Unread postAuthor: schmanman » Sun Feb 17, 2008 9:18 am

^

you're ridiculous. :lol: (not you diy, the guy who posted right before you)


what are you thinking? :x

If you had a compressor, you would think differently.

you think I'm gonna pump up the swat with a bike pump to become more "honest"?

not gonna happen, bud. besides, my compressor does 155 psi.

how the h*ll does that make you more "honest"?
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Unread postAuthor: jackssmirkingrevenge » Sun Feb 17, 2008 9:28 am

DYI wrote:because 10 psi doesn't help a whole lot.


With the default launcher in GGDT, adding 10 psi gives you and extra 50 ft/lbs of muzzle energy - that's an increase of 5 times the muzzle energy of your average "1000 fps" pellet guns.
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Unread postAuthor: DYI » Sun Feb 17, 2008 9:47 am

JSR, while 50ft/lbs seems a lot to you, for me it means turning the regulator dial up another millimetre or so. Most of my guns could gain or lose 50ft/lbs depending on whether the sun was shining on them or not :lol:

@schmanman: this is kind of unrelated, but speaking of the SWAT, is the barrel porting on its valve 3", or 2"?
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Unread postAuthor: bigbob12345 » Sun Feb 17, 2008 10:04 am

DYI: Im pretty sure it is 2in

bluerussetboy wrote:Max AKHL1050E PowerLite™ 400 PSI High Pressure Air Compressor(~$1600) up to 400 psi,

the greater the psi the farther the spud will go and a bigger bang


So your saying he should get one of these and pump pvc up to 400psi just so the spud will go farther and there will be a bigger bang.
That is not just stupid it is just plain suicide.

jackssmirkingrevenge wrote:With the default launcher in GGDT, adding 10 psi gives you and extra 50 ft/lbs of muzzle energy - that's an increase of 5 times the muzzle energy of your average "1000 fps" pellet guns.


That is true but at that bore size you wouldnt even notice it.
If you have 1000ftlbs do you think 50 would even be noticeable.
It might be a little louder because of more wasted energy but it wont go much faster.

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