Why don't we have a sticky on why there aren't magic numbers for guns? I'm not trying to be a jerk about it, but this seems to be a recurring topic since the first ego came out. I know people get numbers that work but I can't seem to believe that everyone's guns are shooting at their best with someone else's numbers.
To understand why this is the case I'll explain what happens in your gun when it cycles (Jack Wood or equivalent, please chime in here if I'm off about anything).
1.) The board senses a valid trigger pull and sends a signal to the the solenoid for an amount of milliseconds based on the DWELL setting.
2.) The solenoid charges and moves the spool to allow air to flow to the back of the rammer.
3.) The airflow causes a build up of pressure behind the rammer. The amount of pressure is relative to the what the LPR is allowing based on the user's adjustments. When the pressure is enough to overcome the friction of the o-rings sealing the rammer, it begins to move forward.
4.) The rammer accelerates forward. The rate at which it accelerates is again relative to the pressure supplied and the friction of the o-rings. A zick kit also contributes to the rate of acceleration initially.
5.) The rammer hits the poppet valve stem and pushes it open, holding it there for the remainder of the DWELL time.
6.) The DWELL time expires and the signal is lost to the solenoid causing it to reverse its position to send air to the front of the rammer to bring it back.
7.) Pressure builds up to send the rammer back (again based on the LPR's adjustment).
Now all this is going on during those 10-16 milliseconds the board is sending a signal. The time it takes for each of the individual steps to happen is going to vary based on the friction in the o-rings (which will change based on the actual o-ring size and variances in machining of each guns inside diameter of the rammer tube), actual flow rate, LPR adjustment, amount and type of lube/oil, and it will change as time goes by and the gun breaks in/wears down.
Now combine all that with the new adjustments in the Ego 11 solenoid and you can see where you DEFINITELY need to understand what's going on in your gun to properly tune it. Someone else's numbers might work well enough but if you really want the most from your marker you just need to fine tune it according to the process.
Bottom line, don't get too caught up in the numbers. Those numbers are only for reference. A DWELL setting of XX.X milliseconds isn't going to yield the same ACTUAL cycle time from one gun to the next. That's just the amount of time the signal is sent. How long it actually takes will vary.
Hope this helps
(Also hope this thread doesn't get deleted like the last one I posted this in haha)
Last edited by Alvecchio : 06-01-2011 at 10:28 AM.