We katana

[phloudernow]

So by taking out the spring release system of the gun you can put in the ASCU? would this apply to other mosfets as well like the raptor or Chimera?

Originally Posted by Jughead

Depending on the platform you are intending to place the system into... With some professional machining of the upper receiver, you can transfer the system to another receiver. I have seen some people machine the upper of a VFC 416 and were successful. You will not lose the spring release by transferring the gearbox to another system.

I took the spring release system out of my gun, as the ASCU completes a full cycle and stops the sector gear in the same place, so that it does not interfere with then piston. That is the spring releases main function with this gun, it releases the gears so that you can open and close the receiver without the gears or piston/cylinder being damaged.

http://www.popularairsoft.com/news/c...-hk416d-hk416c

[Jughead]

I will post up pics as soon as I can, as they illustrate the modifications required to add additional mosfets and wires to be fed to the back. The Rapter would work, I have not played around with the Chimera, but it is the same system as the ASCU, so in theory should work.

As long as they have active breaking, that works, they should be fine. The thing I love about the ASCU, is it stops the sector gear in the same place every time. It stops the teeth of the sector gear at the 1 o'clock position, so that the gear is not in contact with the cylinders piston. This is required, as it reduces the stress on the piston and gears when opening and closing the receivers.

[Jughead]

Ok, so I don't have time to write up a full review, but I thought I should share some required information on this AEG.

First of all, for those that are looking to upgrade this AEG with a rear fed mosfet, you will need to change out the buffer tube and stock assembly, with a regular AEG stock assembly.

The stock assembly that WE is using with the Katana, does not have enough room for the rear fed mosfet to be fed to the stock pipe. It doesn't even have enough room for the Tamiya connector or Dean's connector to be allowed through. This will make maintenance and repair annoying, as you will need to de-solder and solder your connectors on again and again.








WE is on the right: The WE stock pipe does not have the spacer added to the inside of the stock pipe.


You will need the spacer in the AEG stock pipe and you will need to source out a stock pipe screw, that is long enough to hold the WE spacer, that is used to push the Katana's cylinder forward into the hop up unit. You can not have any of the screw protruding from the cylinder spacer, as it will not allow you to close the receivers.


The lower gearbox, is 1:1 TM scale. The internals are also 1:1 TM compatible.


One of the first things that I replaced on the Katana's gearbox was the soft metal 8mm bushings.


I also needed to add a 0.01 shim to the spur gear, as it was rubbing on the bushings.


I can also confirm that vers.II selector plates can also be used, but you be required to remove the spring release arm. I removed this feature as I am using an ASCU that has active breaking and completes a full cycle. Similar to the Systemas PTW.

This is how the gear box came. BONE DRY, with no grease other than the little bit used on the shims. But the gears and internals are of good quality and should last a long time before requiring replacing. The workmanship on the internals seems to be near excellent workmanship, other than requiring the 0.01mm shim on the spur gear, I am quite impressed, when relating it tomany other gearboxes that I have been through.



The trigger switch is similar to the King Arms, low resistance switch and does not use the metal tab on the selector plate.





One last thing is the hop up unit.. It is a copy of the TM spec hop up chamber and inner barrel assembly, but I have found that the replacement of the chamber is a little snug for the Modify Accurate hop up unit. But with some gentle persuasion, the unit fits tight and the airseal I am getting with the Modify unit and WE's cylinder is 99.98%, with no exaggeration.
I am getting 368FPS, consistently, based on 10 shots, using 2 different chrono's.

I have ordered some Sytema PTW spring tensioners, that will increase my FPS, for out door games.

My personal opinion of this gun, is nothing short of amazing.

This is just a quick type up and my person thought s on the WE Katana. I apologize for the grammar, but I just don't have the time, but thought it may help others with any questions they may have.

[Shatter]

The stock assembly that WE is using with the Katana, does not have enough room for the rear fed mosfet to be fed to the stock pipe. It doesn't even have enough room for the Tamiya connector or Dean's connector to be allowed through. This will make maintenance and repair annoying, as you will need to de-solder and solder your connectors on again and again.

The fuck? Do you think bullet connectors would fit? Or would I have to widen the hole?

[Jughead]

You could possibly elongate the hole and fit bullet connectors through. But.. For the price of a stock pipe and its hardware, you will have resolved the problem and can use whatever connector you favor.

The following is the stock pipe/buffer tube that I currently have on the Katana and works perfectly. The aluminum spacer/stopper that comes with the stock pipe, needed to be reversed when placing it in the stock pipe/buffer tube and the area around the screws hole, needed to be ground off. By doing this, I was able to get the right amount of threads into the cylinder's spacer and not have any threads protruding into the receiver.

http://airsoftdepot.ca/catalog/produ...roducts_id=881

[Steve_utsf]

Guys I'm a newbie here, I just got my WE katana system, I have this problem when i fire on auto mode. The bits n pieces of broken bb could be seen flying out of the barrel. Do any of you guys encounter problem as such and what is cause of this.

[Shatter]

Misfeeds. Could be that the tappet plate (or whatever pulls the nozzle back in this system) isn't pulling it back far enough or is broken, could be the hop up unit being on too much or just crap, could be the magazine doesn't feed right.

[ThunderCactus]

What kind of ammo are you using?

I don't understand why they would design and build a whole new AEG concept to use a PTW style cylinder system, and yet use a style of trigger switch that was designed in the 19th century -_-

[Steve_utsf]

That's what I guessed too, as the aeg does not have the normal tepet
I'm using tm 0.25g bbs
Anyone here having the same prob with their katana system?
Btw the hopup is made from plastic so I'm not too sure it works good

[Azathoth]

Originally Posted by ThunderCactus

What kind of ammo are you using?

I don't understand why they would design and build a whole new AEG concept to use a PTW style cylinder system, and yet use a style of trigger switch that was designed in the 19th century -_-

I think this system is excellent. It combines the simplicity of the AEG drive train but takes advantage of the Systema Revolution style compression system that was released a few years ago.

If they had replaced the trigger switch with a basic micro switch that would have been the bee's knees.

[ThunderCactus]

Not a microswitch, those are stupid lol
But a mosfet, that would have been genius.

[SuperHog]

Originally Posted by Jughead

It doesn't even have enough room for the Tamiya connector or Dean's connector to be allowed through. This will make maintenance and repair annoying, as you will need to de-solder and solder your connectors on again and again.

Have you tried just bullet connnectors with heat shrink over each. Pretty sure a 3mm or 4mm is much smaller than a deans that has a housing. If there is room for the wires, then these connectors will work for sure.

[Anavrin]

Hi Guys, I'm new on here and live in the UK, I've just picked up a WE Katana Raptor last week, I've been reading this thread with interest, I found mine also chopped a few bb's on full auto, I've since fitted a gen 3 ASCU so hopefully this will help, I had a little trouble getting the ASCU to work with the stock motor, had to replace it with a Standard Guarder motor.

I too found it was difficult to fit certain hop units in too, I had to file down the front of a prowin hop to make it fit, something I've noticed in the last fews days may explain the feeding problems, if you look at the sector gear it has about 3 less teeth than a standard one, its been "short stroked" by WE, this increases ROF but reduces FPS, so it must have a stronger than normal spring to give 350 FPS with a shorter piston stroke!

Also because it has a shorter/faster piston stroke it may be two quick for bb's being fed from the mag! Need to keep the mag fully wound up or use a good quality mid cap.

[ThunderCactus]

Are you able to change the gearset?

[Anavrin]

I've not counted the teeth on the piston yet (should be the same as the gear) I'm guessing you can change the gear so long as it has the same number as the original sector gear, which means removing some.