It has been a known fact that a higher pressure flows faster and thus provides greater expanding force than lower pressures. Greater expanding force equates to higher g's.
Higher pressure paintguns often produce very high inital rates of acceleration then taper off as it reaches the end of the barrel. (ie) 600gs over 4 inches to produce the desired velocity.
Lower pressure guns on the other hand produce lower rates of initial acceleration but produce it over a longer period of time, a longer power pulse so to say, to produce the desired velocity. The degree of acceleration is smaller but it is lonnger and may not taper off until it reaches the end of the barrel. This exposes paint to less g's and is gentler on paint. (ie) 300gs over 8 inches of barrel to produce the desired velocity.
So... In effect to make a gentle gun we do not necesarily have to lower the chamber pressure. Just lengthen the pulse. Pressure is the inverse of volume and as the ball leaves the barrel the volume increases decreasing the pressure.
I theorize that behind the ball pressures can be significantly reduced by redesigning the powertube tip to release air gradually instead of suddenly. This will in effect limit the G forces to a "gentler" level.
This will lengthen the acceleration pulse reducing the g forces that may break brittle paint.
This could be easily done and easily retrofitted to existing mags. Perhaps redesigning the powetube tip to use a deeper but mildly contoured "cone" would release the air in a longer softer power pulse. The bolt can be made to "dwell" in the barrel longer by using a lower k value return spring.
This will in effect mimick the low pressure power pulse you are looking for.
If I am unclear please ask me...
Surprising what things pop into my mind after a long day of work... :)
Higher pressure paintguns often produce very high inital rates of acceleration then taper off as it reaches the end of the barrel. (ie) 600gs over 4 inches to produce the desired velocity.
Lower pressure guns on the other hand produce lower rates of initial acceleration but produce it over a longer period of time, a longer power pulse so to say, to produce the desired velocity. The degree of acceleration is smaller but it is lonnger and may not taper off until it reaches the end of the barrel. This exposes paint to less g's and is gentler on paint. (ie) 300gs over 8 inches of barrel to produce the desired velocity.
So... In effect to make a gentle gun we do not necesarily have to lower the chamber pressure. Just lengthen the pulse. Pressure is the inverse of volume and as the ball leaves the barrel the volume increases decreasing the pressure.
I theorize that behind the ball pressures can be significantly reduced by redesigning the powertube tip to release air gradually instead of suddenly. This will in effect limit the G forces to a "gentler" level.
This will lengthen the acceleration pulse reducing the g forces that may break brittle paint.
This could be easily done and easily retrofitted to existing mags. Perhaps redesigning the powetube tip to use a deeper but mildly contoured "cone" would release the air in a longer softer power pulse. The bolt can be made to "dwell" in the barrel longer by using a lower k value return spring.
This will in effect mimick the low pressure power pulse you are looking for.
If I am unclear please ask me...
Surprising what things pop into my mind after a long day of work... :)
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