Angle of Engagement

[TheReaper]

What are you guys using to adjust the angle of engagement? I know you can buy plastic washers made for this... are they worth it? I've been using metal washers, though I think a lighter weight solution would be better.

[Ctholl]

What does this mean? Im not a newb its just that i have no idea what
this is lol.

[Panzergraf]

I use metal washers too, I find the little weight they add is insignificant.


FYI, angle of engagement is the angle of which the sector gear's first tooth engages the rear tooth of the piston. This should ideally be as flat as possible, and as many manufacturers have their AOE all wrong, with the sector gear hitting the corner of the piston tooth, this should be corrected by spacing the piston head; essentially moving the piston a few mm to the rear.
This usually requires the 2nd tooth on the piston (from the rear) to be removed, and often the 3rd tooth has to be reduced in height too.

[Horsem4n]

so you just put washers between the piston head and piston? but how does the movement of the piston backwards adjust left and right engagement?

EDIT: NVM, i was thinking of the wrong corner.
thinking of it this way, you could also file the front edge of the first tooth on the sector gear back a little. i've seen some people do it, but the washer thing is much better.

[Aqua Donkey]

Hmmm...yea...what do you guys do with these washers?

For my G36, which has a very high ROF set-up, I shaved the first metal tooth, and then on the back side, removed the 2nd, and trimmed down the third. It has perfect engagement now.

[TheReaper]

The washers move your piston back, so that the pickup tooth on the piston is not struck at an angle when the gear first hits it.

Theres a good graphic that someone made that shows this... maybe someone can dig it up.

[mamba]

There are reinforced sorbo pads that will help attain perfect AOE.

Here's mine, the old version!
http://i272.photobucket.com/albums/jj188/msang17/Gearbox/Inumanna137.jpg

Next gen.
http://i272.photobucket.com/albums/jj188/msang17/Gearbox/GPEOD18-1.jpg

[Ciel]

So is that the ideal way angle of engagement should be set at? Or is that a picture of the wrong AoE?

[mamba]

So is that the ideal way angle of engagement should be set at? Or is that a picture of the wrong AoE?

As what I have posted bro it's the perfect AOE.

[TheReaper]

Mamba, can you post some info on the sorbo pads you use? Where you got them, is it on the piston head and cylinder head, do you cut it to the thickness you need? Also, what glue do you use to stick it on? I'd like to move away from using washers, and start using sorbo pads. Thanks

[mamba]

Mamba, can you post some info on the sorbo pads you use? Where you got them, is it on the piston head and cylinder head, do you cut it to the thickness you need? Also, what glue do you use to stick it on? I'd like to move away from using washers, and start using sorbo pads. Thanks

Bro they are readily available, it's being discussed at Airsoft mechanics.
Here are the next gen PB head with bearing and cylinder head for perfect AOE,

PB head with bearing
http://i272.photobucket.com/albums/jj188/msang17/ARSMASK8.jpg

Cylinder head
http://i272.photobucket.com/albums/jj188/msang17/ARSMASK14.jpg

You don't need to take out the stock rubber and super glue it with mighty bond, or you can buy 1 of this if you like modifying,
http://i272.photobucket.com/albums/jj188/msang17/Sorbopads13.jpg

Set on a bore up/stock cylinder head, don't forget to reinforce it with the stock rubber.
http://i272.photobucket.com/albums/jj188/msang17/Sorbopads12-1.jpg

I hope this can help or go to this website for further info.
http://www.airsoftresearchsyndicate.com/

[TheReaper]

Ah, gotcha - from you pictures it looked like you were using something else. I've got the MASK piston/cylinder head in on of my guns. I was looking for a cheaper solution, though I see that they just sell the sorbo pads by themselves.

[iMShenanigans]

Hi guys, can the AoE effect fps if not properly aligned. Because I have a high power DMR setup, but I'm losing fps somewhere. Is it possible that the AoE can affect this?

[mamba]

Hi guys, can the AoE effect fps if not properly aligned. Because I have a high power DMR setup, but I'm losing fps somewhere. Is it possible that the AoE can affect this?

The main cause for FPS drop is airsealing gone wrong, but ya this modification will reduce FPS due to suppress cylinder air volume, use a stiffer spring to compensate. By the way this modifications are for Hi ROF set up. I have a SAM R which doesn't need this mods, set to semi.

Here's some more, set on 2 different bore up cylinder head (CA, Guarder), note, superglued the sorbo pads to the stock pads, again this mods are for perfect AOE (high ROF set up)
http://i272.photobucket.com/albums/jj188/msang17/Inumanna137.jpg

http://i272.photobucket.com/albums/jj188/msang17/Inumanna136.jpg

[• † DeL]

Hi guys, can the AoE effect fps if not properly aligned. Because I have a high power DMR setup, but I'm losing fps somewhere. Is it possible that the AoE can affect this?
Yes. Remember that these pads take up space in your cylinder therefore reducing the air produced per cycle. That's why most users compensate the loss of air by either changing the cylinder type or spring.