Trev's Regs

[Danny B]

Trev,

I reckon I'll try your system too, since I'll almost certainly be going upside down at some point. When the bottle is at full capacity, is it literally full of liquid right to the top?

[Danny B]

Also, I take it this would be a suitable hose for the reg outlet? http://www.ebay.co.uk/itm/New-Paintb...item3f202169c4
I can stick an adapter on it easily enough if the connection is different.

[maddox10]

Trev,

I reckon I'll try your system too, since I'll almost certainly be going upside down at some point. When the bottle is at full capacity, is it literally full of liquid right to the top?

No, a CO2 bottle gets filled on weight, not pressure like most gasbottles. A full CO2 bottle at roomtemp is about 2/3ths full of liquid.

Overfill a bottle, and it heats up after filling (filling a CO2 bottle is best done with a very cold recieving bottle, and a roomtemp donorbottle) , the pressure will rise very fast, untill the burst disk blows.

[maddox10]

Also, I take it this would be a suitable hose for the reg outlet? http://www.ebay.co.uk/itm/New-Paintb...item3f202169c4
I can stick an adapter on it easily enough if the connection is different.

You realise that is 1 meter of braided hose you cannot shorten. But in theory that hose is strong enough to deal with the pressure.

[Danny B]

Yeah, I'm probably best going with the shorter hose instead.
Just trying to clear things up in my head, is the reg compatible with the on/off valve that you said I'd need on the bottle itself?

[maddox10]

Nope, the thread on the on/off valve is exact the same as the pin valve.

Why should it be a different thread? It's a standard for paintball. The HPA (High Pressure Air bottles) have exact the same thread to connect to the markers.

And Trevors regs are originaly made for industrial bottle thread standard, and that's a tad larger than the paintball bottle thread. But that's just a question of changing the CO2 nut on the reg. Something Trevor and some other roboteers can do without any problem.

[Danny B]

Sorry, I'm probably fretting more than I should be. I guess when you've never done something like this before, all sorts of questions come up.

[maddox10]

No problemo, most roboteers will be glad to answer.

[chris knee]

I would be interested in a trev for a paintball bottle

[maddox10]

1 PM to Trevor should make that a possibility.

[Danny B]

So I've managed to acquire 2 9oz paintball bottles, and I've decided to downsize the ram stroke from 100mm to 75mm in the hope that I can squeeze it into a tighter space.
Obviously, I don't know at this point how everything will be arranged within the robot just yet, but is it correct that I must be able to vent the main tank externally?

[maddox10]

Most of the time the dump valve and the removable link are close to each other, to make the job of the arena marchal or pitcrew that dearms the robots easier.

[Danny B]

So where in the system does the dump valve go?

[maddox10]

That doesn't matter, as long the complete setup can be emptied by manualy opening that valve.