how an angel operates

[ufcd98]

could someone please direct me to the BASIC overview of the sequence of events when an angel fires, preferably as it relates to the A4 generation.

ie; when i used impulses, the firing sequence was:
1. trigger activated solenoid, which released gas to drive the ram/hammer forward
2. bolt is connected to hammer, and drives forward with it, pushing a ball into the breach
3. hammer slaps valve open, and gas rushes up, through bolt, and propels paintball
4. valve spring closes valve as hammer and bolt are retracted by gas through the other solenoid hole, dwell time is the span of time between hammer forward and hammer back
5. The LPR mod changes the pressure of the gas operating the ram.

This kind of thing. I'm unsure as to what the LPR regulates, and why the volumizer changes the operating pressure.

Also, the pin which the breech block rotates on - do i simply remove the grub screws at either end of the body in line with it and push it out? it's filthy.

steve

[KEN CRANE]

good job,you dont need any help thats exactly how it happens only better in an angel.take out the grub screws and pull each pin out.there are 2 pins that hold the breach in one from each end.you will need to make a tool from a screw from the solinoid and bam! your there.

[ufcd98]

whoa - you lost me at "make a tool from a screw from the solinoid and ..."

As you're being so helpful, if i could trouble you to further answer-
1. The lpr lowers the pressure from the minireg and the resulting gas operates what: the ram/hammer only?
2. How does the volumizer reduce "operating pressure" Is it the entire volume of gas used to propel the paintball?
3. So the "dwell" on an Angel controls how long the ram/hammer stays forward?

If you get a second, please check your Private Messages box.
Thanks for your usual great involvement with the AOG

steve

[Vanilla Bloke]

ive got an animation from my team site if you wanna check it out. its for an LCD but it will give you the general idea.

http://www.geocities.com/silentbob9898/AngelLCD.gif

if that one dosnt work, go to this one and go down to Angel LCD animation under "Other"

http://www.geocities.com/silentbob9898/tech.html

[GAV WA]

The link didn't want to work when I just went to have a look, but if he wants to remove the pins that hold the breach in then the two long screws in the front (or are they at the back?, anyway the long ones, the other end has four short ones) of the solinoid are the same thread as what's in the end of the rods. Just be gentle as you don't want to strip the screw, not one you'll find at the local hardware.

[VASHtheSTAMPEDE]

Copy and paste the link into the browser's URL box instead of clicking it.

[ufcd98]

thanks Vash, thats a step in the right direction for me.
it still doesn't make clear to me how the volumizer directly affects the "operating" pressure, or even what exactly that means. The ram/hammer is being moved by gas at that pressure? That's the pressure of the gas propelling the ball?
steve

[ufcd98]

and another thing that doesn't add up:

with my stock setup:
dwell 11
Flat endcap on right and left
LPR set for the 82psi (when minireg reads 350)

I achieve 285-290fps with the minireg reading 200psi.
Which flies in the face of the manual which states that the flat endcap on the right side has an approx operating pressure of 325psi. There is NO WAY the angel is compressing from the minireg 200psi to 325psi internally. So I'm really confused now.
steve

[Josh2klcd]

Here ya go....
-Josh

[KEN CRANE]

ok 1. the lpr reduces the operating pressure to the 14 way as well as the ram.
2. the dwell is the time that the exaust stem is away from the face of the exaust valve.its rate in miliseconds.12 = 12 miliseconds.
3.for lp operation you need large volume low pressure input.without the volumiser on the gun you would have no storage for the volume.you cant acheive a higher pressure than what your input is.so to make a gun low pressure the input is lower and you have a storage for that lower pressure.

[ufcd98]

Alrighty then! I'm really appreciative of your input everyone, esp. Ken! So this is what i've gotten from all this as it pertains to how we adjust things on our A4s:

Volumizer: This is attached to the chamber where the gas which will propel the paintball is stored. Gas here is at the pressure that the minireg is putting into the marker. The larger the volumizer, the more gas is available to propel the paintball. As you lower the pressure from the minireg, you'll need a larger volume of gas available to get the paintball up to speed, which is going to require a longer dwell time to let that gas out.

LPR: This takes gas from the minireg output pressure and reduces it before sending it on to the 14way and the ram/hammer. As you reduce it's output pressure from the stock 82, you generate a "softer" push/pull from the ram/hammer, reducing "kick" If you get too low, it'll lack enough pressure to fully recock the hammer reliably between shots, and at too high a pressure will blow out the solenoid. I'm also guessing as the LPR reduces the operating pressure, it'll require more gas to push things around, reducing your overall effeciency.

Dwell: This is how long gas is released from the "exhaust chamber" to propel the paintball, in milliseconds. A longer dwell should also help to reduce "kick," (or tipping, for that one guy out there) as at firing when the hammer slams forward, the momentum of the mass of the gun can get going forward before the hammer slaps back, and thus counteract the momentum of the hammer going backwards.

Last question! I promise! (Although i think this thread is good for the angel community as a whole)
Is the reason lower pressure operation in the exhaust chamber means less effeciency because you lose gas around the paintball, and since you must accelerate the paintball over a longer period of time, you lose gas over a longer period of time?

Thanks everyone again.
steve