Subject:
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Re: MERLIN valves & sensors
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Newsgroups:
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lugnet.robotics
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Date:
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Sat, 4 Sep 2004 14:04:08 GMT
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Viewed:
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833 times
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In lugnet.robotics, Joe Strout wrote:
> A company in the UK makes electronically controlled proportional air valves
I have not looked at the spec sheets, but the web page says 500 mA at 5 volts.
The valve will probably draw 900 mA at 9 volts, which is past the current limit
of an RCX motor port. Even without the current limit problem, you will have
short battery life. Also, you will need 4 of these valves to emulate a Lego
mechanical air switch.
My opinion - a better solution is
http://www.techno-stuff.com/AirSol.htm
but then, I am biased.
Regards, - pete.
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Message has 1 Reply:
 | | Re: MERLIN valves & sensors
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| (...) Did you catch that these are *proportional* air valves? A LEGO mechanical air switch is not proportional, is it? (Genuine question -- I haven't gotten my hands on one yet, so I could be mistaken about that.) (...) Those are cool, but they only (...) (20 years ago, 5-Sep-04, to lugnet.robotics)
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Message is in Reply To:
| | MERLIN valves & sensors
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| A company in the UK makes electronically controlled proportional air valves suitable for use in pneumatic robots. I've contacted them and they say that they should be quite able to switch rapidly on 9V (though ideally, 5V) DC power, that handling (...) (20 years ago, 2-Sep-04, to lugnet.robotics)
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