co2 pneumatics for beetleweght robots

[Jackpietrzak1]

i got some 3pack co2 cannisters for my beetleweight robot Ronnie O'Speedable (the robot is based on a snooker play who got 147 break 5mins 20secs) 2 other beetleweight are also based on famous snooker players. Ronnie O'Speedable will have a flipper, so wanted to if there hints 'n' tips, even diagrams on pneumatics for beetleweights.

I'm up for a challenge incuding build beetleweight pneumatic systems.

[maddox10]

The diagram would be the same as for a raptor or featherweight, but with smaller parts. Here you have a Full Pressure setup with comments.

[Max]

Here is a full pressure beetleweight built a while ago:
http://www.fightingrobots.co.uk/thre...t-robots/page7
I think you have to go full pressure as there isn't much weight for a regulator but it could be possible.
The main challenge is finding a small enough solenoid valve, I would look into finding a very small hydraulic ball valve then open it with a servo.

[Liftoff]

The diagram would be the same as for a raptor or featherweight, but with smaller parts. Here you have a Full Pressure setup with comments.

Mario, you have turned down the 12oz Co2 bottle (the buffer) by 1/16"? I was thinking of doing the same but hesitated...now that I'm seeing it used as a FP buffer I'm less concerned... The tank's wall thickness is 3.4mm min so taking 2mm away the tank should still be able to hold 12bar no?
Sorry for the hijack

[maddox10]

Your tank has a thinner wall than the one I turned down a tad. That was a tad under 5mm thick.

But for low pressure, 1.5mm should be enough.
On the other hand, with such a thin wall, any hickup or shatter when turning will give you less safety marge.
Do the hydrostatic pressure test please.

[Liftoff]

Thanks for the advice, I'll make sure the bottle is properly supported during turning and it should be fine...as for hydrotesting, it can be done but I doubt they'll issue a certificate for it