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Home built airsoftgun updated with pic and video

This area is for the discussion of BB or airsoft sub machine guns, and or other small arms such as pellets.
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Home built airsoftgun updated with pic and video

Unread postAuthor: Lazyboy » Tue Jun 07, 2011 6:30 am

For a long time I have wanted to build my own airsoft gun, I think I have done it.

I designed it in sketchup, had the flat parts laser cut and was able to mill and turn the receiver with the help of a friend.
Image

The gun is called an MP3008 and was a German copy of the sten gun.
it was built at the end of the war as a people's gun.

I designed it as an electric powered gun, but once finished I could not get the Airsoft gearbox it was designed for, so I decided to convert it to gas.

I have been a long time fan of JSR's blow forward bolt so decided to use that.

The pilot valve is a cut down blow gun.
Image
The gun will be powered by HPA and or CO2.

Test firing while hooked upto my compressor was consistent with no miss fires.
Heres a couple of pictures ( a bit blurry)
Image
Image

Thanks to JSR and others who helped.

The gun is semi auto ( In New Zealand it is illegal to own a full automatic airsoft gun, is treated as a real gun )

The picture below should have all the details on it

Image
Below is a video of it firing, connected to my compressor at 80 - 90 psi.
To me the hiss after the bb leaves the barrel indicates waste air from the manual trigger pull and the gun would benefit from some kind of pulse valve
http://s215.photobucket.com/albums/cc10 ... CF0461.mp4
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Last edited by Lazyboy on Wed Jun 08, 2011 3:31 am, edited 1 time in total.

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Unread postAuthor: jackssmirkingrevenge » Tue Jun 07, 2011 6:41 am

Fuçk me, that's beautiful!

Can you post a more detailed diagram of the worky bits, it's hard to see the exact mechanism in the photo.

Great job!
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Unread postAuthor: Labtecpower » Tue Jun 07, 2011 7:01 am

looks VERY good!
makes me realize that I put out quite poor stuff, for a person with access to machinery...

I would really like to see a vid of it. I think the sound it makes is quite a bit better than the vortex/cloud BBMG's.
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Unread postAuthor: POLAND_SPUD » Tue Jun 07, 2011 7:08 am

Fuçk me, that's beautiful!
yeah I agree fak him :D
...and post more pics

Do I see push-to-connect fittings?? :D
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Unread postAuthor: Labtecpower » Tue Jun 07, 2011 7:15 am

Image

Looks a bit like the push-to-connect fitting Festo has.

oh... I believe I spotted another one...
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Unread postAuthor: Crna Legija » Tue Jun 07, 2011 7:16 am

POLAND_SPUD wrote:Do I see push-to-connect fittings?? :D


second thing that came to mind after the sear beauty of the gun was polands gonna spot push to connect fittings.

but that hose looks like the stuff we use at work for grease nipple extensions. 10k psi burst pressure.
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Unread postAuthor: jackssmirkingrevenge » Tue Jun 07, 2011 7:24 am

POLAND_SPUD wrote:Do I see push-to-connect fittings?? :D


I knew you'd say something about them.

One important detail, is it full or semi-auto?
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Unread postAuthor: cammyd32 » Tue Jun 07, 2011 10:41 am

That truly looks epic, I congratulate you on your efforts. and same question as jsr is it semi or full auto? :D
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Unread postAuthor: Lazyboy » Wed Jun 08, 2011 3:33 am

Updated thread with picture and video
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Unread postAuthor: jackssmirkingrevenge » Wed Jun 08, 2011 10:39 am

Fantastic, you will be impressed with the power increase with HPA, though I hope the blow forward bolt can take it.
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Unread postAuthor: django » Fri Jun 10, 2011 8:00 pm

OH MY GOD!!,thats perhaps the most impressive Airgun ive see on the forums yet.

Well done chap 8)
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Unread postAuthor: Zeus » Fri Jun 10, 2011 8:17 pm

Wee, apart from congratulating you on a very well executed design, I must also congratulate you on your choice of blowgun.

I look forward to your future contributions also.
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Unread postAuthor: Lazyboy » Sat Jun 11, 2011 4:51 am

Thanks for the comments :).
I thinking of trying to devise a pulse valve so to cut the shsss after the BB leaves the barrel, any ideas?

It may be the air from the tube between the blow gun and blow forward bolt.
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Unread postAuthor: Crna Legija » Sat Jun 11, 2011 6:19 am

Lazyboy wrote:Thanks for the comments :).
I thinking of trying to devise a pulse valve so to cut the shsss after the BB leaves the barrel, any ideas?


pop off valve or a 555 timer and solenoid valve
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