pneumatics for featherweight

[Liftoff]

So here's the list of parts I'm using, changed some of the components of the previous build to improve the efficiency and reduce weight.

Buffer/Main tank (x2)
http://www.ebay.co.uk/itm/PaintNoMor...item4ac26a5dfb

These tanks are fitted with pin-valves, the buffer tank does not require one so I modified the pin valve and used it as an adaptor. Thread on the valve is 1/2"bsp.
Have a look at the 8th and 9th posts of this thread:
http://www.fightingrobots.co.uk/thre...lve-help/page3

The main tank requires an on/off valve to be connected to the pin-valve:
http://www.ebay.co.uk/itm/New-CO2-AS...item417105e281

The main tank is connected to the regulator via a braided HP hose. The hose is connected to the on/off valve at one end and at the other end to an adaptor.
The adaptor is 1/8"npt to 1/2"bsp, and connects to the inlet (female thread) of the regulator.

The HP hose comes in different lengths, 6",8",10" or 36"
http://www.ebay.co.uk/itm/New-Paintb...item41715aef1d

Adaptor regulator to HP hose:
http://www.ebay.co.uk/itm/New-paintb...item4857c1c42a

Quick disconnect fittings (to connect HP hose to Regulator adaptor):
http://www.ebay.co.uk/itm/New-Paintb...item416f505f80

LP regulator:
http://www.ebay.co.uk/itm/NEW-PAINTB...item2a1dff3251

I use a 5/2way valve on my system and the ram is single acting, retract is by bungee. The valve I'm using is very small and rated at 8 bar, but will handle higher pressure. Ports are 1/8"bsp...the smallest possible, but this will not affect flow in any way.
http://www.ebay.co.uk/itm/DC-12V-2-P...item5aebfa2b74

Pneumatic fittings I used these, they are rated 15bar.
http://www.ebay.co.uk/itm/6mm-Push-H...item19d9a4c2cb

Quick exhaust valve there are two types, one is heavier than the other. This is the difference between the two (9th post)
http://www.fightingrobots.co.uk/thre...d-diary/page12

QEV
http://www.ebay.co.uk/itm/1pcs-QE-04...item51aa096206

Hope this helps.
Chris