SpudFiles

wyz2285 wrote:They sucks! I bought both of them, just a wast of money.

How so? Mine work just fine...

will these have enough air flow to be a efficiant? if not what would be better to use?

You should get some pretty decent power especially at high pressure.

Mine work just fine...

The slide valve should have 3 o-ring to keep it seal while "sliding" it, but there are only 2, in high pressure uses, very big air loose

its my understanding that the qev uses 1/4 pipe threads. will that restricts flow too much?

I got a rifled 14" paintball barrel today. I'm pretty sure that general consensus says that it will not help spherical projectiles (especially those filled with paint), but if I made some bullets for it with a thin layer of tape to catch the grooves, could it stabilize them?

wyz2285 wrote:The slide valve should have 3 o-ring to keep it seal while "sliding" it, but there are only 2, in high pressure uses, very big air loss

Hmmm... to be honest I've only tried it to 150 psi or so, so I can't comment about high pressures. I will try and compare construction to the 3000 psi rated slide valves I also have.

I got a rifled 14" paintball barrel today. I'm pretty sure that general consensus says that it will not help spherical projectiles (especially those filled with paint), but if I made some bullets for it with a thin layer of tape to catch the grooves, could it stabilize them?

Rifling will stabilise a spherical projectile, indeed rifling came about long before cylindrical projectiles. The problem with paintballs is that they are also soft and have a liquid core.

http://www.physics.org/interact/physics ... index.html

eggciting!



What's the twist rate on the barrel, and what do you intend to fire out of it at what speed?

Here's a useful calculator: http://kwk.us/twist.html

urgle the danish cow wrote:its my understanding that the qev uses 1/4 pipe threads. will that restricts flow too much?

The "barrel" outlet on mine is 3/8" BSP.

Hey guys, I need a 2d 1:1 model of this, the dimensions of it, for a machine shop. Can someone possibly convert the solidworks file to cad, and do a 2d version of it please? Thanks.

[quote}Hmmm... to be honest I've only tried it to 150 psi or so, so I can't comment about high pressures. I will try and compare construction to the 3000 psi rated slide valves I also have.
[/quote]
let me know when you test it out

id like to know if say I buy a 15x8mm reducer, does the pipe (8mm) fit inside the reducer or does it connect via a straight coupler?

thanks

jackssmirkingrevenge wrote:

I got a rifled 14" paintball barrel today. I'm pretty sure that general consensus says that it will not help spherical projectiles (especially those filled with paint), but if I made some bullets for it with a thin layer of tape to catch the grooves, could it stabilize them?

Rifling will stabilise a spherical projectile, indeed rifling came about long before cylindrical projectiles. The problem with paintballs is that they are also soft and have a liquid core.

http://www.physics.org/interact/physics ... index.html

eggciting!



What's the twist rate on the barrel, and what do you intend to fire out of it at what speed?

Well I mainly use rubber .68 cal balls with a bit of paper around them to catch the grooves, but I want to omit the paper so I can feed semi automatically. I don't know how fast they're going, but it's got a 6" long 1/2" chamber, a 1/2" QEV, and at least 500 psi behind it

warhead052 wrote:Hey guys, I need a 2d 1:1 model of this, the dimensions of it, for a machine shop. Can someone possibly convert the solidworks file to cad, and do a 2d version of it please? Thanks.

Attached. But any respecting machine shop could take the ... -DRAW.slddrw files and view them.

Do you think 1'' brass fittings will be safe for a 10x piston hybrid? they made me throw out a box 25 odd kilo of 1'' brass fittings at work so naturally I threw it into my car. It's full of Tees, Nipples and Reducers.

Crna Legija wrote:Do you think 1'' brass fittings will be safe for a 10x piston hybrid?

I would have no problem trusting them.

how can i weld aluminum? Does tin work?

wyz2285 wrote:how can i weld aluminum? Does tin work?

there are some specialty products like this on the market that allows you to solder/braze aluminum.. I think these products are tin based..

Thinking of building a quick cannon this afternoon, 32mm diameter x 1m barrel, 32mm hand operated ball valve between that and the chamber, which will be 50mm x 500mm @ 40-50 psi normally, 100 psi max, and a schrader fill valve. Can I expect it to launch a spud or would that setup not work at all?