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The Hole Maker
Posted: Thu Oct 06, 2011 6:14 pm
by apocavorme
100 psig
1 meter barrel
1,5 liter chamber
16 liter secondary chamber
15,5mm projectile
16mm bore
bal valve with spring trigger
critics are welcome!!! i want to optimize it
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thank you for your view and post!
Posted: Thu Oct 06, 2011 6:50 pm
by jsefcik
For a couple bucks, just put on a pvc chamber,
its pretty neat other wise, maybe some paint
Posted: Thu Oct 06, 2011 7:15 pm
by apocavorme
i like pet couse its rated mare than 100 psig while my pvc is just 100... and its short and ligth weigth campared to pvc... and cheaper...
Posted: Thu Oct 06, 2011 7:53 pm
by POLAND_SPUD
lol ever heard of ricochets ?
Posted: Thu Oct 06, 2011 8:08 pm
by apocavorme
yes, i was afraidof this, but in the first shot the bullet go into the wall... if u look u can see the hole close to the ground... in the second it came back with little force.. no plrblems;
Posted: Thu Oct 06, 2011 11:21 pm
by jsefcik
POLAND_SPUD wrote:lol ever heard of ricochets ?
ricochets arent even funny im serious, i took a golf ball to my eyebrow, at 80 psi and nearly took my eye out
apocavorme wrote:i like pet couse its rated mare than 100 psig while my pvc is just 100... and its short and ligth weigth campared to pvc... and cheaper...
you can go higher then 100 psi with pvc as long as everything is pressure rated
Posted: Thu Oct 06, 2011 11:41 pm
by jackssmirkingrevenge
Not bad, I like how you put it together.
I concur that the chamber deserves to be a bit stronger, a ball valve can take a lot of pressure so if you replace that bottle with something a little higher spec, you can easily go to 250 psi or so with a good stirrup pump and really see the difference.
15,5mm projectile
16mm bore
Hope you're using wadding
Posted: Fri Oct 07, 2011 1:32 am
by apocavorme
hello to all, my problem is that i can only find 100 psig pvc rated where i live
...
there is some pvc for hot water rated 300psig but it is much more expensive... i m afraid to use more pressure in this setup.. but i would like to buid a metal setup, but its hard to find metal parts here... i realy want to go 500 psi.. hehhe, i have to buy metal parts from another city, when i do this i ll post!!
but for now im in the safety limit... the ball valve slow... im building a qev... what do you think for the reload? blow faward or blow backward? (considerind dead space, direction change of flow...)
jackssmirkingrevenge:
sorry i dont understand, my english is poor, what do you mean wadding?
(translator coulndt help me)
Posted: Fri Oct 07, 2011 2:09 am
by jackssmirkingrevenge
Go for higher pressure, you will be impressed. Also a good spring loaded ball valve is a pretty fast valve, if done well it can keep up with a QEV.
apocavorme wrote:sorry i dont understand, my english is poor, what do you mean wadding?
(translator coulndt help me)
Wadding - something to block the space between the barrel and the bullet, so you will not lose power because air leaks through this space.
The same way they use patches for muzzle loaders.
