Subject:
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Pneumatic Solenoid Valve Interest Poll
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 4 Feb 2000 09:31:16 GMT
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Viewed:
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1584 times
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I managed to find a small collection of 12V Solenoid valves. I have been
working on trying to get them to work with the RCX Brick. The voltage output
of the Brick is pretty low. I have been able to get very good success using
just a battery pack and they work great with an RCX that is hooked up to an AC
transformer, but the success with just an RCX is so-so. I can get them to
work say 85% of the time. The problem is that with the reduced voltage the
solenoid valve has a hard time tripping far enough to close the exhaust valve
on the three way. But like I said it will do it about 85% of the time.
I have nylon fittings to port the "in" and "out" to 1/16 inch for use with
Lego pneumatics and have mounted the solenoid valve to a brick to give it an
attachment point. I also wired it to a spliced Lego electric cord to finish
the job. They turned out pretty well, and happened to be almost exactly 6
bricks and 2 plates high. If you want you can check out an image of one at:
http://www.jps.net/henrik/danweb/solenoid1.jpg
My big question is would anyone be interested in purchasing some of these from
me? And if so, how much would you be willing to pay? I only have about 25-30
or so of them, and would like to sell them, but honestly I hesitate to just
sell them officially and outright since I cant guarantee that they work with
the RCX. I thought about trying to re-work them so that you would hook them
up to both an RCX and a power pack and when tripped would kick in both the
pack and the RCX, but its a little more work than I am willing to do right
now, especially with my current financial situation. Let me know what you
think. I will base prices on my costs, what responses I get and your thoughts.
I am eager to hear from you.
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Message has 3 Replies:
 | | RE: Pneumatic Solenoid Valve Interest Poll
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| (...) act kind of like a diode. This is cool. How much do you want to sell each valve for, and can you get me the source? They look just the right size for the job at hand. Cheers, Ralph Hempel - P.Eng ---...--- Check out pbFORTH for LEGO Mindstorms (...) (25 years ago, 4-Feb-00, to lugnet.robotics)
| | | Re: Pneumatic Solenoid Valve Interest Poll
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| Just as a follow-up and to answer some questions that I have received via e- mail. Re: 2-way or 3-way valve These solenoid valves are three way, meaning they have a port for IN, OUT and exhaust. When not powered the IN port is closed to prevent (...) (25 years ago, 5-Feb-00, to lugnet.robotics)
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