SpudFiles

The construction of my hybrid meant that I have gained experience for every type of launcher here, that is, except for a BBMG. Construction has began on my revolver, pump action, paintball thingy (I need a name...) so I can start plans on one.

Before I do, however, I have a few questions:
1) I'm gonna place a vortex block in it instead of making a cloud. Which type of block is better, one that is completely rounded or one that is half rounded?
2) I plan on using unregulated CO2 for insane rates of fire. I will build (or buy) an expansion chamber for it. What material should I use for the vortex block.
3) I would assume that, since it will have a constant air source, any length of barrel will suffice. Is this correct or is there some type of barrel to something ratio I need to be aware of for the best shots?

I believe that is it for now. Thanks in advance.

1)Heres a good tutorial on how to make a decent vortex block
2)Automotive Bondo
3)2:1 is optimal in my perspective

I have the resources to make one. I was just wondering if a full circle or half circle is better. As far as using the bondo, will it hold up to that much pressure? I was thinking I would have to build it out of aluminum or something, running unregulated CO2.

It *shouldn't* build up any significant pressure, unless you're feeding liquid CO₂ through it. If it got jammed somehow though... I'd make the block out of something more sturdy, just to be sure. In the extremely unlikely event of a complete jam, a well made epoxy block should hold. If you have the equipment and skills, there's no harm in using aluminum, but epoxy might be easier.

Thanks. What about the half vs full vortex block?

elaborate what you mean by "half or full"

I believe he means the half hole, or full hole inline vortex block.

hubb017 wrote:

Mac/pistol man wrote:He does mean the half hole, or full hole inline vortex block.

Lol...

i thought bondo wore out quickly

I don't know much else about bbmg's, but I do know that a shorter barrel will give you a higher rate of fire, but lower velocity, and that a longer barrel will give you a lower rate of fire, but a higher velocity.

From what i have read here on spudfiles, i concluded that it is better to have a half circle only because the bbs dont have to make as many revolutions compared to a full circle.

But this only affects the rate of fire only a little. Besides that, there is really no difference. But dont take my complete word on it because i have never built a bbmg.

I'll have to see. It is going to be pushing between 800 and 850 psi and I want it to rip through sheet metal, maybe roofing tin or something.

Since I'm using unregged CO2, I have a few more questions.

1) I will build an expansion chamber. It will be a steel pipe, probably 3/4". I've considered filling the pipe with steel wool. Would this make a difference in keeping the liquid out, sort of like a filter, or would I be waisting my time?

2) I sure would like to use the least amount of CO2 I can. The chamber is not going to be too big so that would help. Any more tips on conserving CO2?

Uh, don't use bondo, for those pressure, they will ware out really quickly, can you make one out some metal that would be the ideal solution for that kind of pressure.