X Valve can't keep up!?! VIDEO

[sTaLa]

I've almost finished my EP mag using a UTB. It fires, but the X valve does not keep up with the board. My assumption is that when the sear is pushed back by the valve, it pushes too hard and the MPA3 and therefore, the valve does not fire.

I'm using an RT on/off, do you guys thing using a ULT would solve the problem?

Here's a video of the X Valve not keeping up:
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[captian pinky]

is your gun chronoed?
is your lvl10 tuned?
lpr pressure high enough?

[sTaLa]

The valve fires properly on my pneumag, as fast as I can fire it. Wich is faster that shownn on that video.

The gun is chronoed.
The Lv10 is tuned.
I can't rise the LPR pressure anymore because the solenoid will leak. A security pressure switch must open at a given pressure.

[hill160881]

Move your ram rite up against the sear so there is no room between them. What is the output pressure of the tank?

[hill160881]

you mite find some useful measurements and settings in this thread

http://www.automags.org/forums/showthread.php?t=254702

[kcombs9]

either the LPR is too low so the MPA3 isn't hitting the sear hard enough or its too far away, looks like you have a large gap between the sear and ram.

[sTaLa]

Well, I can't really move the ram since it is epoxed (CF frame limitations). But I can try to fit a screw in there tough: I used a kind of nut as a ram so I could fine tune the distance between the ram and the sear. I just thought the distance was fine when I tested it since it fired well in semi-auto, so I glued it there.

The tank output is 3000 psi.

[hill160881]

I ment the output of the reg on the tank. It just takes some tinkering. The x valve will shoot stupidly fast with 850 psi input.

[TwilightG]

what is your dwell set to?

[kcombs9]

The tank output is 3000 psi.

I think you mean its a 3000 psi tank, your reg should bring it down to around 800-850psi unless other wise noted...

[sTaLa]

Yeah my bad on the tank output: stupid interpretation. I have a crossfire reg, I don't know the exact specs.

My dwell is set to the default option on the UTB, wich is 7 ms. I messed a bit with it and found out the gun worked around 7-15 ms. If anyone has any info about the best setup for an X valve and the UTB I'm interested!

But I got my setup working! It turned out my problem was the sear interfering with top of the MPA3. Therefore not reseting properly. Really bad design: I had to cut a part of the sear.

I lost so much time trying to fit a screw in the MPA3: cutting it, dremeling it... It is not event funny.

But here's a video! Sorry for the bad quality...
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Uploaded with ImageShack.us

[OPBN]

Very nice. Any better pics of the setup that are covered up by the warp? I keep thinking I am going to Pneu my Chimera, but this might be a more fun option.

[hill160881]

Sweet! You may want to run your dwell at around 13 to 15 ms. I have found that to be best. It will still cycle over 20 bps at 15 ms dwell.

[sTaLa]

Thanks I'll try the dwell at 15 ms!

Here's a video of some shooting:
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And OPBN, the pics I have so far. It's kind of a mess in there
I located the battery in the warp compartment. 12 V mod out of two 9V batteries. Then I added a 9V regulator to feed the board. This way I won't have one battery empty before the other.

[68calsportz]

sick

Wow. Great job. I really like how it looks like a regular classic type gun with a single trigger. But underneath those wood grips is something evil to be reckon with. so sick