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" Old Shatterhand" 5 shot mag now cycling on vid.

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Unread postAuthor: john bunsenburner » Fri May 22, 2009 10:41 am

What i found to work is lamp oil, it diesels nicely with a nice puff of smoke behind it.
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Unread postAuthor: CpTn_lAw » Fri May 22, 2009 12:20 pm

That's a cool hint John :D I' think i might try that!
BtB, fridgedoor is so sweet...i think it's my new god. :D
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Unread postAuthor: psycix » Fri May 22, 2009 1:24 pm

So this actually works?

You should drop by, put in in front of my chrony, and fire with and without dieseling. The numbers will tell if it dieseled or not, and, how great the effect is.
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Unread postAuthor: Brian the brain » Fri May 22, 2009 4:00 pm

That topic finally made me try.Although I've done it in commercial airguns about 2 decades before...

I'm still not convinced...
First I tried your penetration test on waterfilled redbull cans..and made it onto the fifth, without attempting to diesel..So by itself it is pretty powerful..No wonder..at over 500 psi!

I shot two holes in a fridgedoor, one with and one without fuel.
just watch the pics..I can't tell the difference..

I shot the door a third time but due to the huge pressure drop it didn;t make it through.
I found out the hammer was too heavy.It only gave me 5 shots..wich were " faiding" fast..
As a result I have again lightened the hammer...and now I think it's finally balanced out..Lots of shots and still it pilots at high pressure..
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Attachments
002.JPG
Last can standing..well..not really..Both this one and the sixth flew off a couple of feet.The sixth was just dented a bit..Nr 5 is still dead!
003.JPG
Left me very wet by the way...
001.JPG
I think my cans are a bit leaky,..
I might be wrong....
Naamloos.jpg
Close up of entry.Holes are 20 mm or larger.Done with 16 mm marbles..Not too shabby aye?
Naamloos.jpg (28.47 KiB) Viewed 1802 times
005.JPG
Booya..You just know you ain't safe in your car no more neither!
Marble left a mark on the brick wall behind it as well..
006.JPG
Looks pretty mangled.On top is an almost side entry shot..marble is still inside.
Lower you see 3 holes..2 penetrated the entire 2" thick door.The bottom one was after pressure had dropped too far really.
Also you can see dents made by buckshot..wich works better on wood..
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Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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Unread postAuthor: Brian the brain » Fri Sep 18, 2009 5:54 pm

New pictures.
I've added a second hammer coilspring on the opposite side, wich should give me shots in the higher pressure regions.


The hammer is faster now, but lighter since the last pictures.
I haven't tested the max pressure yet.
I think I may have to choke the reservoir at some point if I want to get more shots now.
We'll see.
(edit)By powering up he hammer I'm preparing her for an inline reg and paintballtank in stead of the reservoir it has now.

I accidently came across another plate to finish off the left side of the action, wich looks sweet if you ask me.
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Attachments
shatterhadnew 002.JPG
shatterhadnew 004.JPG
shatterhadnew 005.JPG
This is how Shatterhand and Lupara are displayed on my shopwall...
Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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Unread postAuthor: jackssmirkingrevenge » Sat Sep 19, 2009 5:39 am

Awesome, looks like the sawn-off is some kind of 19th century Masterkey attachment :D
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Unread postAuthor: psycix » Sat Sep 19, 2009 5:51 am

Ahh phew, I was afraid that you used your hacksaw when you announced a new picture in the other thread... but thank god it still has its barrel. :P
When you're done with the regulator thing we should run it over my chrony again.

That was Mr. Porter's wall mount right? Where did you put it?
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Unread postAuthor: Brian the brain » Sat Sep 19, 2009 2:56 pm

It is visible in the first two pictures.
I found out that with the extra spring it now fires at higher pressures ( didn't try above 500 psi though) but the volume of air that is released is too small.
A smaller caliber would solve that, but I like the big bore-homemade airgun thing.If I need a good .22 I can buy one.

I got 23 shots out of it, but none was very loud.
The hammer needs a little more weight.I trimmed it earlier.
I'll use brass washers as weight, so I can add one at a time.
There must be a nice average to be found.I already fitted some washers on there and the hammer still strikes fast.Before the extra spring it wasn;t when I weighted the hammer.

I will cut off about 15 cm of the barrel when the CO2 upgrade works out.
The last 15 cm is just the sleeve anyway, so it won't hurt performance.Just the outer barrel will be cut.

It is there to match the reservoir in lenght for looks, while the 1 meter barrel could not be longer as a part of it runs through the T and houses the bolt.
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Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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Unread postAuthor: psycix » Sun Sep 20, 2009 5:39 am

The last 15 cm is just the sleeve anyway, so it won't hurt performance

What are you waiting for? SAW!
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Unread postAuthor: Brian the brain » Wed Sep 23, 2009 4:27 pm

I decided to do some more changes.
I moved the bolt-handle towards the rear, wich enables me to cock the hammer and open the bolt in one move.
Plus the new handle finishes off the end of the bolt, wich was as left open until now.


I put some weight on the hammer in a way that it still looked good ( need to round off the bottom) wich gives me shots beyond 35 bar as far as I can tell.
I also gave the strikerpad an extra counterspring so I have now tuned it in to the power and number of shots I want.

From 30 bar down it gives me 6..so at 35 bar or over that should be somewhere around 8 powerful shots..
I'll have to test that during daytime because of the noise...

If I were to add a magazine running side by side with the barrel I could now pull off some fast repeatative shots... :D
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Attachments
shatnew 003.JPG
shatnew 004.JPG
shatnew 005.JPG
shatnew 007.JPG
Displays the bolt open and closed and hammer cocked and after firing.
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Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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Unread postAuthor: jackssmirkingrevenge » Wed Sep 23, 2009 11:28 pm

Brian the brain wrote:If I were to add a magazine running side by side with the barrel I could now pull off some fast repeatative shots... :D


That would certainly complete the Girandoni styling ;)

Also, the title of this post suggests that female undergarments are somehow involved in this project lol
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Unread postAuthor: Brian the brain » Thu Sep 24, 2009 5:55 am

female undergarments are somehow involved in this project lol

As always.. :wink:
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Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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Unread postAuthor: JDP12 » Thu Sep 24, 2009 7:37 am

Looking good Brian!!

Quick question- Where are the hammer springs? Did you conceal them behind a plate somehow?

Might be a stupid question... I dunno
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Unread postAuthor: Brian the brain » Thu Sep 24, 2009 11:30 am

Yes, they are hidden behind the plates.
I'm contemplating wether or not to hide the new counterspring under there too..

The problem is, I filled up the two part plate with epoxyputty to keep them aligned with a minimum of screws.Essentially they are one part underneath.

I'll drill the plate as it is, keeping it aligned and remove the epoxy afterwards.That should keep everything okay...
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Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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Unread postAuthor: Brian the brain » Sat Sep 26, 2009 4:31 pm

I a-polish-gise for the double post.

I changed the topic title as in stead of Brass T Bolt it just said Bras in the end...wich JSR mistook for undergarments... :D

I was so impressed by the look of Moonbogg's new cannon I decided to polish up the brass..
But I had no luck finding the right stuff so I ended up using ...


Dum-dum-dummmmm.......

Toothpaste!!

And Rag of course..( :D )..I mean a rag...

And boy did that work.
I could have put in some more time...but that would mean my wife would have bad breath all day tomorrow..I left her a pinch..

What?? You did not expect me to use up mine did you!?!? :D

It might not have given me a 100% mirror finish, but 95% is good enough for now..
It makes the parts look like they were originally like this before I put them on...in fact they were sawed, filed, trimmed, bent etc..
anyway...pretty dull looking.I also polished the barrel and chamber, wich makes them light up like never before ( got the stuff dull looking already)
Pictures were taken at night...
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Attachments
polished 003.JPG
polished 004.JPG
bit blurry, but the bolthandle no longer looks like a drilled, tapped, filed and cut up doorhandle anymore...
polished 007.JPG
Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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