Airsoft Canada - View Single Post

krap101 · May 3rd, 2011, 16:01

There seems to be some confusion about how this works, so I'll add this to all of my threads.

The cylindrical part fits into the slot where the nub normally sits, and the other flat parts on the top rest against the hopup arm. The size of this will be the same width of a bucking, but maybe 5-6 times longer, but short enough to fit into the window cut out of the barrel.

The purpose of the flat plate as opposed to a concave plate, is to reduce the chance of adding sidespin to the bb. I suppose it will be much easier to align my pad rather than a nub, so the concave idea might still work. The purpose of the SCS,PCS,H-nub, is to increase contact area to increase friction. My design uses the "normal" amount of friction, over a longer period of time to achieve the same thing. A angled, concave pad would add more hopup, but would be unnecessary until you get into ridiculous weights of bb's.

The angle on the pad makes it so the bb will *more* slowly accelerate angularly, but as it moves through, pressure will increase. In rifles, variable pitch is used to slowly increase angular acceleration, which yields a more consistent shot with less wear on the barrel. In our case, the more time the bb has with the pad, the less likely it is to slip>>greater consistency. The pad will essentially put less pressure on the bb (less friction) but over a longer period. So in physics, impulse=change in momentum=force*time. If I have 1/5 the pressure, with 5x the duration, I will achieve the same angular velocity.

I feel like I've just said the same thing over and over again, so forgive my repetitiveness.

May 3rd, 2011, 16:01	#9
krap101 Trader rating Join Date: Jun 2007 Location: Roscoe, IL USA	There seems to be some confusion about how this works, so I'll add this to all of my threads. The cylindrical part fits into the slot where the nub normally sits, and the other flat parts on the top rest against the hopup arm. The size of this will be the same width of a bucking, but maybe 5-6 times longer, but short enough to fit into the window cut out of the barrel. The purpose of the flat plate as opposed to a concave plate, is to reduce the chance of adding sidespin to the bb. I suppose it will be much easier to align my pad rather than a nub, so the concave idea might still work. The purpose of the SCS,PCS,H-nub, is to increase contact area to increase friction. My design uses the "normal" amount of friction, over a longer period of time to achieve the same thing. A angled, concave pad would add more hopup, but would be unnecessary until you get into ridiculous weights of bb's. The angle on the pad makes it so the bb will more slowly accelerate angularly, but as it moves through, pressure will increase. In rifles, variable pitch is used to slowly increase angular acceleration, which yields a more consistent shot with less wear on the barrel. In our case, the more time the bb has with the pad, the less likely it is to slip>>greater consistency. The pad will essentially put less pressure on the bb (less friction) but over a longer period. So in physics, impulse=change in momentum=force*time. If I have 1/5 the pressure, with 5x the duration, I will achieve the same angular velocity. I feel like I've just said the same thing over and over again, so forgive my repetitiveness.