Chad im impressed. Keep up the good work. Out of interest what travel have you put onto the base piston? (I.E. How far does it have to travel from closed to fully open to fire the ram?)
An approx optimal clearance would be Radius x Radius of the base port divided by the Diameter of the base port.
This would give the same cross sectional area for flow... between the base piston and the port ... as the port orifice itself has.
what woody said
Idealy it would be 15 mm in Chads ram.
But the flow is rather huge, so Ill limit it to 8mm. Still gives the surface let trough of 12+ Burkert valves
You also get a fair bit of wasted co2 with a big clearance ....as all the gas under the valve is vented.
So as Mario pointed out there needs to be a sensible compromise between ultimate flow , required performance and gas consumption.
(Message edited by woody on February 05, 2007)
Looking for a small 2/2 valve for this thing... Anybody has something that would be up to the task?
http://www.fas.ch/eCatFASBin/eCatFAS.dll/PrintENTCATALOGUE?ID_ENT_CAT=1105&ID_ENT_CAT_PUIS_ BOB=1063http://www.fas.ch/eCatFASBin/eCatFAS...CAT=1105&ID_EN T_CAT_PUIS_BOB=1063
http://www.fas.ch/eCatFASBin/eCatFAS.dll/PrintENTCATALOGUE?ID_ENT_CAT=1105&ID_ENT_CAT_PUIS_ BOB=1063http://www.fas.ch/eCatFASBin/eCatFAS...CAT=1105&ID_EN T_CAT_PUIS_BOB=1063
The valve is rated for 60 bar .. with an A.C. Coil ...youll need to overvolted a D.C. coil to operate it ..... perhaps the 6v option would be best.
Got some work done on the ant today... Self rights and flips alot better with the new tube that I got. Still only at 90PSI when the max is 145PSI. New videos and pictures.
- http://www.teamwazio.com/bots/getflippen.phphttp://www.teamwazio.com/bots/getflippen.php
How would a Burkert 2200 or 2400 valve go for releasing the pressure from a 70 * 100 mm ram? Do you know the mass of these? I am having trouble finding a spec sheet in English.
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