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Twitches Marble Sniper NEW PICS

Posted: Mon Apr 09, 2007 2:08 am
by TwitchTheAussie
Here they are.

Image

Im planning on adding a few extras like a scope, co2 regulator or paintball tank and a bipod.

The chamber is 3 feet long and barrel will be about 4 feet long. I might add some supports and Im making a fancy grip in school for the blow gun trigger.

Any ideas for improvements?

And now for the Version 1.5 pics.

Image

Posted: Mon Apr 09, 2007 2:34 am
by Mr.Russ
How are you gonna make that bend in the bottom of the stock?

Posted: Mon Apr 09, 2007 2:35 am
by TwitchTheAussie
Im good at pipe bending. I've got the right stuff

Posted: Mon Apr 09, 2007 2:41 am
by Flying_Salt
Won't pvc weaken if its melted and/or bent? That'll warp and mess it up. Unless this is copper...

Posted: Mon Apr 09, 2007 2:44 am
by Mr.Russ
I can bend pipe too. But on that sharp of an angle? that is going to restrict flow pretty bad.

Posted: Mon Apr 09, 2007 2:49 am
by TwitchTheAussie
Flying_Salt wrote:Won't pvc weaken if its melted and/or bent? That'll warp and mess it up. Unless this is copper...
Steel all the way for the chamber. Barrels copper though.

Mr.Russ Posted: 04/09/2007 18:44 PM Post subject:

I can bend pipe too. But on that sharp of an angle? that is going to restrict flow pretty bad.

I was planning on making it less steep. This is just an early drawing of it.

Posted: Mon Apr 09, 2007 2:52 am
by Mr.Russ
oh well you said your using steel for a chamber?

if your using PVC i would jsut buy a 90 degree elbow, then bend it a little bit more.

Posted: Mon Apr 09, 2007 3:09 am
by jackssmirkingrevenge

Posted: Mon Apr 09, 2007 3:22 am
by Mr.Russ
thats a good plan, but if you made it I would make the 'stock' 1" because it feels comfier.

Posted: Mon Apr 09, 2007 4:58 am
by integral
the thing i dont like about that plan is its breech. not a big fan of the floating barrel not really stable and sealed kinda scenario.

ur plan looks like its rockin!

Posted: Mon Apr 09, 2007 5:33 am
by shud_b_rite
how bout a gauge? And yea if you do add a scope that would look friggin wicked

Posted: Mon Apr 09, 2007 11:11 am
by locksmith
build on never hurts to try new designs.well unless you use the wrong stuff then you might get hurt

Posted: Mon Apr 09, 2007 11:20 am
by Blitz
Looks like most people's rifle-style guns, but that bend does concern me. I make it a point never to use more than a 90 degree bend anywhere. I've never built a cannon from just metal yet, but that's one of my upcoming projects.

Think about the airflow. You also may wanna consider using that as just a handle and not your air chamber; re-route your air into a smallish chamber below the barrel.

Posted: Mon Apr 09, 2007 11:41 am
by Velocity
Looking good. But I am going to have to agree with everyone else about the flow restrictions on the stock. If I were you, I would make it a standard over under. However, instead of using 90* bends, use tee's. Then, block off the one part of the tee's. You can then connect a stock to this part of the gun without any restrictions on flow. I think that is the same principle as the gun which FMJ (or Jackssmirkingrevenge) posted (I didn't actually look at the gun cause of crappy internet connection, so sorry if i am wrong).

Posted: Mon Apr 09, 2007 12:14 pm
by iknowmy3tables
hes right the capped off tee thing is similar to a very common and successful design for a solenoid rifle like the one jack showed

a good pneumatic should have an easy wide and short path from the tank to the barrel. the caped off the tee makes the flow more direct