PMEUMATICS

[jonophilpott]

Re: PMEUMATICS

or you could buy a 30 metre roll on ebay for £18
Obviously this is 10mm but im sure they do diff. sizes

http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... K:MEWNX:IT

[Thunder arrow]

Re: PMEUMATICS

Yer or just buy 30 times on tecnobots for about £16

[jonophilpott]

Re: PMEUMATICS

Im currently building too...

Ive got 5/2 valve with 1/4 bsp ports with 10mm pipe and 1/4bsp fittings on the ram will this be sufficient??

What regulators you using peoples? I need one asap.

[woody]

Re: PMEUMATICS

Your building a feather?
Your ram size?

OR ...Download Noel's flipper calculator

http://www.hassockshog.co.uk/flipper_calculator.htm

[jonophilpott]

Re: PMEUMATICS

yes im building a feather...
the ram is a small hydraulic ram... id say it was 30mm wide and the stroke is about 80-100mm

[woody]

Re: PMEUMATICS

I'm guessing your bore as 25mm and your pressure = 10 bar
So........ 50kg's of force divide that by 3 = 16.66kg's

You'd be able to flip/turn an opponent over but you'll not get any air time ..your also limited to a MAX leverage ratio of 3-1.

Have you managed to contact Trev?

BTW ..Your valve and tube/pipe sizes are fine.

[Thunder arrow]

Re: PMEUMATICS

The reg is the last thing I am getting.
Is a reg from tecnobots good idea or just go to the airway pneumatic thing place



Theo

[woody]

Re: PMEUMATICS

Have you got access to a compressor?...If so I'd suggest that you mock up your pneumatics without the bits you still need to purchase i.e. co2 bottle / buffer tank / regulator and pressure relief valves.

Try the setup with an external pressure source ...then depending on the results ...make a decision about the purchase of the other items just mentioned.

WATCH THE WEIGHT.

[Thunder arrow]

Re: PMEUMATICS

No I havn't got a compressor or access

But this is what I need:
a reg**
nylon pipe 6mm
cylinder
valve
and that's it

**where should I get one from?

[woody]

Re: PMEUMATICS

No I havn't got a compressor or access

But this is what I need:
a reg**
nylon pipe 6mm
cylinder
valve
and that's it

**where should I get one from?

Try contacting Trev ...
memberlist.php?mode=viewprofile&u=217


You WILL need 2 pressure relief valves... see build rules...one for 1000 psi and one for 10 bar .

NOTE ...I'm only giving you mathmatical information on the possible performance of your pneumatics....it's by no means a certainty.

[jonophilpott]

Re: PMEUMATICS

ive tried contacting him but hes not replied for a few days so i taken upon myself to get one and found a nice one on ebay that service is 60 bar and regulates to 10 bar £25

How can i increase this force without going above 10bar??

thanks

[woody]

Re: PMEUMATICS

A bigger bore / volume cylinder and sufficient FLOW to fill it in a relatively short time...

[woody]

Re: PMEUMATICS

So ...you want to increase your Power ...Energy supplied quickly

Energy = Force x Distance
Distance = Volume / Area
Energy = Pressure x Volume
( psig x cu-in => in-lbs )

Power = Energy / Time
Power = Pressure x Volume / Time
( Units = in-lbs/sec)

Flow rate = Volume / Time
Power = Pressure x Flow rate
( Psig x cu-in/sec => in-lbs/sec )

[jonophilpott]

Re: PMEUMATICS

dont wanna take the p!55 but could you guide me in the direction of a suitable ram please

Ive seen you can use quick exhaust valves for the inlet too :/ ???!!

[woody]

Re: PMEUMATICS

dont wanna take the p!55 but could you guide me in the direction of a suitable ram please

Ive seen you can use quick exhaust valves for the inlet too :/ ???!!

Yup oddball QEV inlet valve.....

So what is the biggest ram / cylinder that you can squeeze into your design that you can supply with sufficient gas flow?

Get it when you find out / decide.

Sorry about that answer but it's really difficult to design for someone else with such minimal information.