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Old 06-28-2002, 07:56 PM #1
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did you know?

did you know that the air pressure that hits the paintball (which comes out of the bolt) for a matrix is 45 psi!!
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Old 06-28-2002, 08:02 PM #2
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this can be seen at www.automags.org in the forums under the section Deep Blue, i think it's on the 2nd or 3rd page
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Old 06-28-2002, 08:45 PM #3
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Did you know that 44psi can break a kneecap?
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Old 06-28-2002, 09:39 PM #4
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Quote:
Originally posted by Sudden Impulse
Did you know that 44psi can break a kneecap?
sweet. now I know the answer to the question of my life!
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Old 06-28-2002, 10:01 PM #5
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Quote:
Originally posted by Sudden Impulse
Did you know that 44psi can break a kneecap?
wow man do you know at which angle i should approach a knee cap?
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Old 06-29-2002, 12:11 AM #6
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It only takes 11 pounds of pressure to break a clavical (sp).
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Old 06-29-2002, 07:34 AM #7
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HEHE
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Old 06-29-2002, 06:37 PM #8
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Wha?
Please explain. If it's only 45psi then why does it operate at like 120psi?
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Old 06-29-2002, 10:15 PM #9
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i don't know, go to link and look it up, they have it explained.... I think that is what the air comes out of the bolt as, but in the chamber it's 140-180...... i dunno.... look into it..
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Old 06-30-2002, 12:04 AM #10
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Quote:
Originally posted by Sudden Impulse
Did you know that 44psi can break a kneecap?
So you're saying that if I put the bolt up to my kneecap, I could brake it?

SHWEET!
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Old 06-30-2002, 09:58 AM #11
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the pressure coming out of the bolt is what ever your operating pressure is, hence how turning up my maxflo letting more pressure into the gun increases the velocity of the paintball.


luu

p.s. i was thinkin bout this thread while playin yesterday and realized how it doesn't make much sense.
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Old 06-30-2002, 10:08 AM #12
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Soooo since the gun operates at upwards of 120psi that means the air coming out the bolt will be upwards of 120 psi. Maybe you were thinking of the air that drives the bolt, I think it's only around 45psi.
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Old 06-30-2002, 11:37 AM #13
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i dunno how it works, how but that is what the experiment over had AGD worked. If you really want to call AGD and ask for Tom Kaye cuz he did the research on this.... it is hard to believe
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Old 06-30-2002, 12:38 PM #14
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just doesn't make any sense


maybe 45 psi hits the top hat w/ an lpr but if u dont have an lpr everything runs in your gun at 120 or what ever your op pressure is i have an lpr and i can stick my finger in the breach and have my bro whale on the trigger and it doesnt hurt let alone brake a knee cap. but thats not the pressure used to blow away the ball the pressure coming from the "valve in a sense" that pressure is the op pressure and if u dont have an lpr thats the pressure pushing your bolt back and forth in the top hat. i have my lpr adjusted so the bolt moves w/ so little force i cant chop

for safty purposes please dont stick your finger in a breech that doesn't have an lpr lowering the bolt pressure i don't want to be responsible for someone having a nub for a finger.

i got this down
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Old 06-30-2002, 12:42 PM #15
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the lpr lowers the bolt pressure (the force of the bolt moving back and forth) but the air coming out of the bolt is 45 psi according to AGD eventhough the regulator has an output of 140-150 psi.

I am guessing that since the air has to travel through the bolt, 45 psi of the 140 psi in the chamber hits that ball on impact, but over the whole time period that the bolt is forward, all 140 psi that was in the chamber escaped to propel the ball.

Hope this made sense, but it's a theory, not a fact....
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Old 06-30-2002, 12:53 PM #16
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no sense at all forget agd and use ur head
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Old 06-30-2002, 12:57 PM #17
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ok.... thanks for having an open mind....btw how old are you? you sound like an old fart (old people can't deal with new ideas, very traditional)
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Old 06-30-2002, 01:14 PM #18
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Alright, if you can't grasp this concept, then you are (in essence) a "stupid ****ing idiot".

When a 180psi enters into the chamber with volume x, the gun is charged at 180psi. The input to the dump chamber seals off when the bolt moves forward containing 180psi at volume x. When the transfer port opens up, the chamber AND the bolt face are pressurized. If the bolt face has volume y, then the new pressurized area has a volume of x + y. Since x + y is naturally a higher volume than just x, the pressure inside the marker behind the ball will decrease with the larger volume. Thus you get an input pressure of 180psi and a firing pressure of 45 psi.

Dummies
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Old 06-30-2002, 01:22 PM #19
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Thank you Twitcho!!!!! That's what i was trying to say but i can't explain it in mathematical terms (x+y crap) but i'm sure that will shutup a few ignorant people....
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Old 06-30-2002, 06:03 PM #20
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predator im 16 the pressure wouldn't always be 45 psi it could be 40 or 50 or something else it is rouphly 1/4 of the input pressure based on twitcho's explaination so it wouldn't always be 45 psi i never thought of it that way thanks twitcho


and predator.................stop talking give those huge muscles in your mouth a rest will ya
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Old 06-30-2002, 06:11 PM #21
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Quote:
Originally posted by lit-u-up
predator im 16 the pressure wouldn't always be 45 psi it could be 40 or 50 or something else it is rouphly 1/4 of the input pressure based on twitcho's explaination so it wouldn't always be 45 psi i never thought of it that way thanks twitcho

Well... those numbers were just pulled out of my head. I don't know if the actual pressure is 45psi or 70psi on the ball, I just used those numbers to illustrate the point I was trying to get across. If you had a really long bolt for instance and a smaller gas chamber you would have an even smaller fraction of the original pressure being applied to the ball. Likewise if you could somehow increase the size of the dump chamber and shorten the length of the bolt you would get less of a pressure difference. It's a neat concept, and really lets you see another factor that could directly effect efficiency
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