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paintball science

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paintball science

Unread postAuthor: kydavies » Sun Aug 01, 2010 7:41 pm

due to my fearful parents i cant build launchers (still got one under my bed) i have got into paintball and want to buy an APEX barrel but am to cheap. so heres my idea, im going to put a peice of PCV (sch 80) as a barrel extenction but to give the paintball bit of a lift at the end by cutting the PVC extention in half. and yes there is some science to this. when a paintball is fired it builds a pressure wave in front of it, so by relieving the pressure above ( the lack of the top on the barrel) and keeping the pressure wave on the bottom the paintball should recieve a small push therefore arching up slightly resulting in an affect similar to a flatline or APEX barrel.
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Unread postAuthor: ramses » Sun Aug 01, 2010 7:46 pm

possibly, but I think it would be inconsistent. The flatline is actually a bent barrel and therefore is not "flat" and cannot be described as a linethat forces the PB to roll on the top of the barrel, creating spin, which then creates an area of low pressure on top of the paintball, which creates lift. This is known as the magnus effect, and probably wouldn't be THAT hard to reproduce.

That sucks about your parents.
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Unread postAuthor: PVC Arsenal 17 » Sun Aug 01, 2010 9:13 pm

The APEX has a rubber strip designed to put a backspin on the paintball using friction. The strip's height can be adjusted to change how much spin it imparts on the ball. The flat trajectory is the result of Bernoulli's Principle. I don't think your idea will work, it's not really changing the ball's behavior within the barrel.

http://cdn-www.pbreview.com/productpics ... oduct=3894
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Unread postAuthor: kydavies » Sun Aug 01, 2010 9:23 pm

il give it a shot, but im not expecting much if anything cause all it is is a 4 inch piece of 1" PCV. besides if it worked everyone would already be using it.
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mikemurph wrote:yea, the ammo has been changed to a more aero dynamic projectile. it consists of the back half of a dart, and a hot glue ball
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Unread postAuthor: jhalek90 » Sun Aug 01, 2010 9:44 pm

kydavies wrote:il give it a shot, but im not expecting much if anything cause all it is is a 4 inch piece of 1" PCV. besides if it worked everyone would already be using it.


1'' is way to big.
3/4'' CPVC works well for paintballs. Just make sure it is CPVC.

EDIT:

i just re-read the first post... i did not realize you were using schedule 80.

How well does a paint ball fit in 1'' schedule 80?
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Unread postAuthor: PVC Arsenal 17 » Sun Aug 01, 2010 9:50 pm

3/4" sch80 PVC has an ID of .722". Maybe he means that?
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Unread postAuthor: Lockednloaded » Sun Aug 01, 2010 11:00 pm

What if you put a length of electrical tape down the inside of the barrel on the top. It will cause more friction and impart a slight spin
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Unread postAuthor: kydavies » Mon Aug 02, 2010 11:17 am

it doesnt fit at all in 1" im using it cause it fits snuggly around my barrel
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mikemurph wrote:yea, the ammo has been changed to a more aero dynamic projectile. it consists of the back half of a dart, and a hot glue ball
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Unread postAuthor: covey12 » Mon Aug 02, 2010 12:34 pm

that would be pretty cool it if it works, but while the apex does make the paintballs go further they lose a lot velocity and don't break as much, just saying haha
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Unread postAuthor: kydavies » Mon Aug 02, 2010 7:59 pm

ya it would be cool if it did work (havent tried it cause my parents dont like me shooting in the back yard) even just a little. if i doesnt work (most likely scenario) then il put a strip of electrical tape on the top of my barrel or just go back to the drawing board (in case you didnt noice i like to use brackets)
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mikemurph wrote:yea, the ammo has been changed to a more aero dynamic projectile. it consists of the back half of a dart, and a hot glue ball
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