B2TB: sawed-off 35 bar repeater

Show us your pneumatic spud gun! Discuss pneumatic (compressed gas) powered potato guns and related accessories. Valve types, actuation, pipe, materials, fittings, compressors, safety, gas choices, and more.
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Brian the brain
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Sat Jun 07, 2008 5:27 pm

B2TB by BTB

Yes, it's finished!!

BAD 2 the Bone ( B2TB for short)

My latest creation..
Just short enough to be called a sawed-off ( kind of my trademark isn't it?)
Fixed reservoir, with one-way valve INSIDE the reservoir, for a cleaner and shorter look.

The main valve is a modded QEV, piloted by a hammer-valve.
The body is made out of hardwood and epoxy-resin.

Caliber is .50, I have about 100 leadballs for it.
I can get about 6 shots out of it.
Great power too..
I'll fully test it tomorrow..

This is also my entry for the new competition!
Attachments
With the break barrel open.
With the break barrel open.
pivot point.<br />I need to put a hose clamp over it, as this point takes a lot of stress.<br />The barrel consista of three pipes hammered into one..( pounded them into one piece at the front)
pivot point.
I need to put a hose clamp over it, as this point takes a lot of stress.
The barrel consista of three pipes hammered into one..( pounded them into one piece at the front)
view of the hammer ( in rest)
view of the hammer ( in rest)
b2tbfinished003.jpg (28.86 KiB) Viewed 8588 times
hammer cocked...
hammer cocked...
b2tbfinished004.jpg (33.66 KiB) Viewed 8588 times
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Fat Joe 91
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Sat Jun 07, 2008 5:35 pm

that look cool. do you have any damage pictures
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Lentamentalisk
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Sat Jun 07, 2008 5:37 pm

Awesome! I don't exactly like the looks of having that schrader valve sticking out like that, but other than that it is beautiful. How is the power of your shots? Maybe chrony them, to check out the power drop.

edit: by the way, what kind of paint is that? I heard about using auto body underbelly paint, which seems like the only thing that would stick sufficiently well and not get scraped off.
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Brian the brain
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Sat Jun 07, 2008 5:39 pm

Not yet.
I have just finished it.I have a thread in the pneumatic discussion section that does contain some damage pictures..

But not with it's current barrel...so that would not be accurate..

Nice to hear you think it's cool...everybody else hates my guns... :D

paint is the scratchy kind I think..
And it;s not a schrader..it's a QD.
I know what you mean, but I pretend it's "not part of the gun"
There is 1/4"chackvalve screwed in from the back of that fitting...So I already tried to hide the ugly parts.
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SpudFarm
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Sat Jun 07, 2008 6:29 pm

FREAKIN awesome!

NICE
one more beutifull ! ;)
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starman
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Sat Jun 07, 2008 7:49 pm

Yes, I can see the Terminator shooting that from his Harley.. 8) ..and looks just like a BTB creation. Excellent as usual!

Has the competition gotten out of the starting blocks yet? I haven't heard anything about it in a couple of weeks.
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Sat Jun 07, 2008 8:16 pm

It reminds me of a pirate like gun. Very nice, it would probably get my vote in the contest. Good looks, and 6 shots!
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jackssmirkingrevenge
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Sat Jun 07, 2008 10:20 pm

Awesome! Personally I would have gone for pump action as opposed to break barrel but I can't fault your workmanship, let's see some videos!
hectmarr wrote:You have to make many weapons, because this field is long and short life
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ghostman01
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Sat Jun 07, 2008 11:28 pm

very very nice, so the QEV and hammer valve basically make it work like a PCP air gun ?
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Sun Jun 08, 2008 12:44 am

BaBaBaBad 2 T B, BTB
How much would you sell it for? :wink: 8)

EDIT: Joking, but if it was available commercially,I'd be saving up!!!
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Carlman
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Sun Jun 08, 2008 1:37 am

Very nice there mate you need a video to go with it :D :D


i thought the competition would require entrants to release their cannons when the comp has started..
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jackssmirkingrevenge
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Sun Jun 08, 2008 2:43 am

ajdevi92 wrote:very very nice, so the QEV and hammer valve basically make it work like a PCP air gun ?
Not quite, in a PCP the air released by the hammer valve fires the projectile. In this case, the hammer valve empties the pilot chamber briefly, actuating a quick exhaust valve which fires the projectile. Since the hammer valve is only open for a brief instant, the QEV can reseal, aloowing for more than one shot per chamber.
hectmarr wrote:You have to make many weapons, because this field is long and short life
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ghostman01
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Sun Jun 08, 2008 3:00 am

so the principle is the same but just different valves
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Sun Jun 08, 2008 3:03 am

You can say that. The reason he can afford multiple shots is that the chamber is pressurised to just over 500 psi.
hectmarr wrote:You have to make many weapons, because this field is long and short life
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TwitchTheAussie
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Sun Jun 08, 2008 8:10 am

Bloody beautiful mate.
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