so good to see well known forum members checking this thread out. Maybe someone can sticky this?
I think this is a great new idea for people to put their thoughts into and try tinkering. It is an awesome mod when accomplished. I have spoken with a friend of mine who has a 98 custom running full auto mod with a qev'd cyclone. He is hitting around 21 - 22 bps according to recordings. Running HPA of course.
I have put some thought into the whole "slowing the bolt down with the shocks" idea, and still cant fully understand the operation. BUT....
STEPS OF OPERATION:
1) Trigger is pulled, and Held Down
2) Sear is lowered and Hammer is unlocked
3) Hammer spring drives the Hammer into the valve stem and pwr tube
4) valve stem decompresses and valve spring decompresses
5) gas pressure attempts to equalize b/t the tank and the gun system
6) gas is released in front of the power tube and gas is released behind the
power tube
7) paintball is propelled and hammer is forced back into its starting position
8) hammer spring is compressed, and the cycle repeats so long as the sear is
in the down position
Ok...where in this proccess does one see a possible way of controling bps???
I DO!
i think i have figured out how the shocks work on the Tippmann F/A
1) the hammer has grooves on both the top and bottom...
2) the bottom grooves are for the regular trigger sear
3) the top grooves are for the 2 sear "shock" system...and this is where the 2
sear shock system can momentarily rubs / slows the hammer
4) the shock sears are located almost directly above the trigger sear, but a
little forward...so that it can control the hammers rate of cycle really close to
the starting (compressed) position, but while the hammer is flying toward the
valve stem
- the shock system can control the bps by instantaneously "catching" or
"rubbing" against the bolt via its 2 sear shock system
- the pistons are there to control the amount of pressure acting on the sears,
and thus how long the shock sears can maintain static friction and
equilibrium upon the hammer...probably for .05 seconds (20bps = 1 shot
every .05 sec)
oh...the factory f/a was supposed to be 20bps from factory...and then
adjustable by the user
- the location of the shock sear system above the trigger sear was important
By locating them almost above the trigger sear and a little forward, the process of momentarily slowing the hammer could be done in a position where the hammer spring is almost fully compressed and while the hammer is making its way to the valve stem -
this would explain how velocity is maintained
- the brass Rate of Fire adjustment screws were there to regulate the pressure of the pistons.
- the shock had 2 sears...and both are incapable of actually holding the hammer still so that the cycle can repeat so long as the trigger sear is depressed...so they were probably rounded off at the edges...just enough to provide a high enough coefficient of friction to slow the hammer as close to its starting position as possible
- having 2 shock sears in different positions allows a better control of the bps...2 spots to momentarily "catch" the sear are better than one
Ok, enough typing. EVERYONE READ THIS, and let me know what you think of my einsteinium findings
