Assorted Pneumatics Questions

[woody]

Assorted Pneumatics Questions

You should at least angle the bottle so that the valve is higher than the base .....say 15 degrees?

[philip_taylor]

Assorted Pneumatics Questions

Thanks, Woody. I will look at the shape again.

[philip_taylor]

Assorted Pneumatics Questions

What happens when the robot is upside down? The regulator would be getting liquid CO2. What does this do to the reg?

[fwsorg]

Assorted Pneumatics Questions

It freezes up the reg. It takes some time before the reg will function properly again. A solution is to stick a coil of thin copper tube (large surface arena etc) between the bottle and the reg. That tends to give the CO2 enough opportunity to change state into a gas.

[philip_taylor]

Assorted Pneumatics Questions

Thanks alot Eddie. Has anyone tried the expantion chambers that they use for paint ball guns to stop the regs from freazing?

[woody]

Assorted Pneumatics Questions

Note: SOME regs will happily cope with liquid.

I suspect that almost anything you can think of has been tried...

[kronic]

Assorted Pneumatics Questions

Does anyone know where I can get a 1.1kg fire extinguisher from? If not, any size under 2kg would be acceptable.

Cheers,

Dave

[maddox]

Assorted Pneumatics Questions

I can supply 1 ali 1.1 kg Project II bottle, or an brand new 1.5 kg bottle , with the same dimensions, unfortunatly, that 1.5 kg bottle is a steel one.

But why such a big bottle for a featherweight? the cheaper, lighter and simpler solution is to use 1 or 2 20 oz paintball bottles.

[kronic]

Assorted Pneumatics Questions

Mario. Thanks for the info. What are the dimensions of the 1.1kg Project II bottle, and what size connections and on/off knob does it have please?

Cheers,

Dave

[maddox]

Assorted Pneumatics Questions

The connection is the classic 5/8 UNF 18tpi CO2 attachment. Size, 101mm diameter and total length 420mm. The Knob is a small 5 lobbed round one, diameter about 50mm. Way to big for a feather. Even the ali one weights over 1.8 kg.

Also, I was intending to use this as the bottle for the resurected Project II. Combined with the basic cost, and the P&P, it is more intersting to buy one in the UK. Dont forget Im over the channel.

[woody]

Assorted Pneumatics Questions

http://www.justpaintball.co.uk/acatalog/Co2_Systems_.htmlhttp://www.justpaintball.co.uk/acata..._Systems_.html

20 oz = 0.56 kg ....You may well find ...as Mario says .... these more suitable for a feather.
Internal thread ...5/8 UNF...Tap/Valve thread 1/2 BSP.

[woody]

Assorted Pneumatics Questions

http://www.p8ntonline.com/product.asp?P_ID=246&strPageHistory=search&strKeyw ords=co2&numPageStartPosition=1&strSearchCriteria= any&PT_ID=allhttp://www.p8ntonline.com/product.as...ch&strKeywords =co2&numPageStartPosition=1&strSearchCriteria=any& PT_ID=all

This bottle has HSE approval.