My new coaxial cannon(BLACK BEAST)

[x.X.Cpt.Rollhart.X.x]

Here it is

It is currently in cure but I tested it with 20 psi, The piston seal perfect !

The chamber is 4" and 4 feet long, the barrel is 2" and 6 feet long. my piston is a 3" endcap.

here are the pics :

<a href="http://img529.imageshack.us/my.php?imag ... 0764sd.jpg" target="_blank"><img src="http://img529.imageshack.us/img529/740/ ... 4sd.th.jpg" border="0" alt="Free Image Hosting at ImageShack.us"></a>

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<a href="http://img529.imageshack.us/my.php?imag ... 0803gw.jpg" target="_blank"><img src="http://img529.imageshack.us/img529/2949 ... 3gw.th.jpg" border="0" alt="Free Image Hosting at ImageShack.us"></a>

Edit :

I tryed it. dude it kicks ass !!!!

I shot a PVC dart at 1.1 km and I blow 2 cement beam with a 1" bolt with 2" washer.

I just did a very nice paintjob ! The stand has been done very quickly this is why it is a bit badely done ...
<a href="http://img228.imageshack.us/my.php?imag ... 204qe8.jpg" target="_blank"><img src="http://img228.imageshack.us/img228/8545 ... qe8.th.jpg" border="0" alt="Free Image Hosting at ImageShack.us"></a> <a href="http://img205.imageshack.us/my.php?imag ... 207pi1.jpg" target="_blank"><img src="http://img205.imageshack.us/img205/9803 ... pi1.th.jpg" border="0" alt="Free Image Hosting at ImageShack.us"></a> <a href="http://img215.imageshack.us/my.php?imag ... 202va3.jpg" target="_blank"><img src="http://img215.imageshack.us/img215/7615 ... va3.th.jpg" border="0" alt="Free Image Hosting at ImageShack.us"></a>

[Benny]

very nice coaxial cannon.

[frogy]

Hell of a pistol

I like all the guns you make, GJ

[dgr-c]

... my piston is a 3" endcap.

I couldn't tell from the pic. What's the gasket material. I'm prototyping a coaxial with 1.25" barrel, 1.5" chamber. A 1" endcap fitns but I haven't found the right gasket material and I get slow leaks just over 20 psi.

[x.X.Cpt.Rollhart.X.x]

... my piston is a 3" endcap.

I couldn't tell from the pic. What's the gasket material. I'm prototyping a coaxial with 1.25" barrel, 1.5" chamber. A 1" endcap fitns but I haven't found the right gasket material and I get slow leaks just over 20 psi.

it is a rubber disc ...

[sgort87]

I see you figured out your bushing dilemma. Did that Spudtech thread help at all or was it all just a huge misunderstanding?

[x.X.Cpt.Rollhart.X.x]

I see you figured out your bushing dilemma. Did that Spudtech thread help at all or was it all just a huge misunderstanding?

it was just a huge misunderstanding

[WOW!!]

Nice job, do you have any viedo of it? And is it powerful?

Josh

[huse_spud]

what do launch? big taters? i'd hate to make a mess inside that nice gun though. maybe those large bouncy balls that are sold on spudtech, but u could prolly find em at a dollar store or something.

EDIT: i now see 4" male and female adapter so you can clean out the gun.

by the way that cannon is hard core

[x.X.Cpt.Rollhart.X.x]

what do launch? big taters? i'd hate to make a mess inside that nice gun though. maybe those large bouncy balls that are sold on spudtech, but u could prolly find em at a dollar store or something.

with a sabot, you can launch anything.

And I will make some PVC dart ...

http://www.xinventions.com/main/spud/darts.htm

The person who made the P.A.C. 5 on this site pretend that he shot a PVC dart 1276 meter

[huse_spud]

i use milk caps as sabots in 1.5". last time i put one in, i filled the barrel halfway with flour and fired it off, it was a sight to see.

[rna_duelers]

I never believed that he shot his a dart out of his cannon 1.2km some one should GGDT his gun design n see the max distance.Because 1.2km is very far.

[frogy]

Do you need a sabot in a pneumatic to shoot water and flour and stuff?

What type of metal chamber is that?

I like guns that have like a 1" male out of the sprinkler and then a bushing to get it up to like 2" becaust then you can shoot golf balls while they're sheating on top of the 1" hole and they fire pretty good.

[x.X.Cpt.Rollhart.X.x]

I did a paintjob on this beast !!!!

[carlbelcher]

Do you need a sabot in a pneumatic to shoot water and flour and stuff?

Not if you put enough pressure in the chamber to seal the valve first, and if you're using a sprinkler valve you don't even have to do that.