Joined: 16 Jun 2004
Posts: 9481
Location: Where you least expect
Pneumatic / CO2 megathread
Turns out we don't yet have one! how bout 'dat
Question - Got my buffer tank drilled and tapped for a fitting, now there's cutting fluid and presumably shavings inside of it. What's an acceptable method for cleaning her out? Flushing with water and detergent? _________________ www.demon50s.com - Minimoto parts
http://www.youtube.com/user/HyzerGlen - Videoooozzz
Tue Jul 23, 2013 7:43 pm
Philip Experienced Roboteer
Joined: 18 Jun 2004
Posts: 3842
Location: Queensland near Brisbane
I think I used methylated spirits to clean my tapped cylinder.
Do you have a G sized cylinder? _________________ So even the rain that falls isn't actually going to fill our dams and our river systems
Tue Jul 23, 2013 8:26 pm
Glen Experienced Roboteer
Joined: 16 Jun 2004
Posts: 9481
Location: Where you least expect
Good idea, i think i still have some metho
And its a EE cylinder according to the bottle, the invoice has 22kg of CO2 on it though, pretty sure a EE is only 15... might have to check up on that! _________________ www.demon50s.com - Minimoto parts
http://www.youtube.com/user/HyzerGlen - Videoooozzz
Tue Jul 23, 2013 8:38 pm
maddox
Joined: 21 Dec 2006
Posts: 786
Location: Belgium
Swarf is a problem every time.
My series of actions to clean out bits.
Compressed air to blow most swarf out of it.
Giving the object to my loving wife and she puts it in the dishwasher.
Assemble the setup without ram, and use the valve as "energy retainer", to vent it first with compressed air (have an adaptor that connects the setup with the compressor). If the setup has worked for 20 times in a row without a glitch, a main storagebottle is attached , and that's used up completely.
If the setup glitched in the compressed air or FP test faze, rince and repeat.
Tue Jul 23, 2013 9:12 pm
Glen Experienced Roboteer
Joined: 16 Jun 2004
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What are you fellas using for lubricant in the rams/valves? Obviously freezing is an issue as is dieseling, so not keen to put any old grease in there lol.
Joined: 18 Jun 2004
Posts: 3842
Location: Queensland near Brisbane
CO2 is inert so you don't have to worry about ignition. I used an oil for a nail gun. _________________ So even the rain that falls isn't actually going to fill our dams and our river systems
Wed Jul 31, 2013 12:59 am
maddox
Joined: 21 Dec 2006
Posts: 786
Location: Belgium
Once in a blue moon I use a lick of very soft grease to lube the piston and rod. HDPE is selflubing. And it shows.
And dieseling. Never had any problem with that.
We're not using closed end pistons.
Wed Jul 31, 2013 2:25 am
Red.13
Joined: 17 Jun 2013
Posts: 47
This being the "megathread", does that mean any and all questions regarding CO2 should be posted here?
Q1: Those little 12g CO2 cartridges you get in puncture repair kits - are they a viable (big enough) CO2 source for a 3 minute battle?
Q2: The pressure that comes out of those things is like 70 Bar or more!! Most pneumatics work on 1 bar or about 150 PSI. Would something like the eBay item below be able to do the trick to get the pressure down to something workable?
Joined: 16 Jun 2004
Posts: 9481
Location: Where you least expect
Sure! What class? beetleweights i think a 12g cartridge or two will be all you can fit in anyway.
That reg will probably only work up to 160psi input, the only other regulators i found, looking for high pressure stuff were the paintball ones. Pricey! ($80+) _________________ www.demon50s.com - Minimoto parts
http://www.youtube.com/user/HyzerGlen - Videoooozzz
Fri Aug 02, 2013 4:49 pm
Red.13
Joined: 17 Jun 2013
Posts: 47
Yeah, I'm figuring beetle weight.
But since it has a tap on it, I figured it could handle big pressures on the inlet side but on the outlet the gauge only goes to 160...
Proving very hard to find any good source for this stuff. :/
Fri Aug 02, 2013 6:13 pm
maddox
Joined: 21 Dec 2006
Posts: 786
Location: Belgium
quote:Originally posted by Red.13:
This being the "megathread", does that mean any and all questions regarding CO2 should be posted here?
It is a good idea in itself.
quote:
Q1: Those little 12g CO2 cartridges you get in puncture repair kits - are they a viable (big enough) CO2 source for a 3 minute battle?
12 gram CO2= 6 liters of CO2 @1 bar
So, amount of actions depends on your usage. Or in other words, ramsize and working pressure.
quote:
Q2: The pressure that comes out of those things is like 70 Bar or more!! Most pneumatics work on 1 bar or about 150 PSI. Would something like the eBay item below be able to do the trick to get the pressure down to something workable?
That reg won't like 800psi inletpressure.
And why bother regulating? Full pressure is a know technology these days.
Fri Aug 02, 2013 9:16 pm
Glen Experienced Roboteer
Joined: 16 Jun 2004
Posts: 9481
Location: Where you least expect
Saw this at the bike store today. A little adjustable regulator for the 12g Co2 cartridges. Could be good for a beetleweight!
Joined: 19 May 2010
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Location: ipswich QLD
is that regulator metal....the one i had cracked /exploded cause it was just plastic. _________________ Miles Blow - Julie Pitts
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Sun Aug 11, 2013 10:02 pm
Glen Experienced Roboteer
Joined: 16 Jun 2004
Posts: 9481
Location: Where you least expect
Ahoy,
Anybody got a source for the 4oz co2 bottles or just a good source for paintball bottles in general? Was buying my 20 and 12oz ones from a place in qld but they seemingly aren't stocking co2 gear anymore. Looks like most are shifting to nitrogen :<
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