WARPIG Tech Talk - High End Paintguns - Re: More on high pressure vs low pressure


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WARPIG Tech Talk - High End Paintguns
Re: More on high pressure vs low pressure

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Posted by DougSeman on April 24, 2002 at 00:11:42:

In Reply to: Re: More on high pressure vs low pressure posted by MYXZ on April 19, 2002 at 01:01:57:

As the person has just pointed out... how quickly an object has been accelerated (known as the 'jerk' in physics... rate of change of acceleration)... has no impact on the final velocity. The only thing that matters is the velocity of the ball as it exits the end of the barrel. At this point no forces other than friction of air are acting on it, which means that ALL balls with the same exit velocities will travel the same distance (assuming the same angle of the barrel from verticle).

This is the basic physics.

Range has NOTHING to do with pressure. Ball breakage possibly... accuracy... maybe. Range? No, it's not possible unless the ball was so deformed that it stretched out to present more surface area for air friction, and not only would the shell not handle this, but cameras tell us this is not the case.

: The low pressure/high pressure concept can be exeplified by a blow gun (same principle used in paintball. If you try launching a dart with a very quick forceful puff (a fraction of a second), it will launch the dart to a distance, but if you try launching a dart with a less forceful puff but prolong the puff until the dart leaves the end of the blow gun, it will send the dart farther than the first one.That is because the dart is exponentially accelerated throughout it's path along the inside of the blow gun while on the first method, the dart is suddenly accelerated but only a part of the way inside the barrel. (basic physics}. Now on the ball breakage issue, high pressure systems tend to break a ball more because as the high pressure air hits the ball, it deforms the parts of the ball it hits first, if the shell of the ball is not able to withstand the force, a ball break occurs Which is in contrast to low pressure systems, the ball does not receive a lot of force to deform it's surface thus less ball breaks.

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: As the person has just pointed out... how quickly an object has been accelerated (known as the 'jerk' in physics... rate of change of acceleration)... has no impact on the final velocity. The only thing that matters is the velocity of the ball as it exits the end of the barrel. At this point no forces other than friction of air are acting on it, which means that ALL balls with the same exit velocities will travel the same distance (assuming the same angle of the barrel from verticle). : This is the basic physics. : Range has NOTHING to do with pressure. Ball breakage possibly... accuracy... maybe. Range? No, it's not possible unless the ball was so deformed that it stretched out to present more surface area for air friction, and not only would the shell not handle this, but cameras tell us this is not the case. : : The low pressure/high pressure concept can be exeplified by a blow gun (same principle used in paintball. If you try launching a dart with a very quick forceful puff (a fraction of a second), it will launch the dart to a distance, but if you try launching a dart with a less forceful puff but prolong the puff until the dart leaves the end of the blow gun, it will send the dart farther than the first one.That is because the dart is exponentially accelerated throughout it's path along the inside of the blow gun while on the first method, the dart is suddenly accelerated but only a part of the way inside the barrel. (basic physics}. Now on the ball breakage issue, high pressure systems tend to break a ball more because as the high pressure air hits the ball, it deforms the parts of the ball it hits first, if the shell of the ball is not able to withstand the force, a ball break occurs Which is in contrast to low pressure systems, the ball does not receive a lot of force to deform it's surface thus less ball breaks.

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