Subject:
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RE: Solenoid Pnuematic Valve
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Newsgroups:
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lugnet.robotics
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Date:
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Sat, 10 Mar 2001 15:30:21 GMT
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Viewed:
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394 times
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That's the one. I used the low pressure version to get the 1/2 watt
rating I.E. 5VDC @ 100mA.
It works, but it has a few drawbacks....It's a traditional 3 way valve
(Com, NO, NC) so it doesn't vent the same way the Lego valves do, you'd
need two to control one cylinder. There are ways around this, but they are
all a bit kludge. It's expensive, about US $28.00 each. Finally, the low
pressure version won't reliably switch at higher pressures (no numbers
here, I just know the Lego pump and tank can be pressurized higher than the
valve can handle).
That said, it's a neat toy. If anyone wants a picture, respond to me.
Jeff
Jeffrey Hazen
North Mill Technology
jeffrey.hazen@northmill.net
-----Original Message-----
From: Martin Scragg [SMTP:mnm@bigpond.net.au]
Sent: Friday, March 09, 2001 5:51 PM
To: lugnet.robotics@lugnet.com
Subject: Re: Solenoid Pnuematic Valve
I'm no sure if those are the ones, but a long time ago somebody tried
these:
http://www.pneutronics.com/new/xvalve.htm
I'm not sure of the results, but would be interested to find out about
either of them.
Martin
----- Original Message -----
From: "Marc Klein" <marc.klein@free.fr>
To: <lugnet.robotics@lugnet.com>
Sent: Saturday, March 10, 2001 3:56 AM
Subject: Re: Solenoid Pnuematic Valve
> On Fri, 15 Sep 2000 16:11:09 GMT, Jeffrey Hazen • <jeffrey.hazen@northmill.net> wrote:
>
> > I have finally found a tiny solenoid valve for use with the RCX. It • fits
> > into a 2x4 stud brick, and runs off one of the motor outputs. All I had • to
> > add was a resistor, a zener (the valve runs on 3 VDC), and a diode • (reverse
> > voltage stop). It's really neat. Did I mention it fits into a 2x4 • brick?
>
> Was it these valves ?
> http://www.microhydraulics.com/EFSWEB/2186.htm
> If not, they seem intersting, but I have no information about cost, • availibility, efficency with RCX. I just found that
> in a magazine.
>
> Marc Klein
> A Mindstorms fan.
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Message has 1 Reply:
 | | Re: Solenoid Pnuematic Valve
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| hey Jeff: Those pictures you sent me a while ago are still on my web site. they are @: (URL) I went and bought 2 of these valves just so I can try to "make" a 4 way valve. I have a crude proto type, and it sort-a fits in a 4x4 lego brick. sorry no (...) (23 years ago, 13-Mar-01, to lugnet.robotics)
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