Subject:
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R: electric pneumatic valve actuators?
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 30 Aug 2004 19:15:43 GMT
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Original-From:
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Camp0s <camp0s@libero.it[spamcake]>
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Viewed:
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1039 times
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Hy Joe,
months ago i was looking for an idea for an actuator, then i come out with a
mtor controlled (it's not what you were looking for however) it's a simply
design, it it made of standard lego part nothing of special and using an old
9V motor (high speed, low torque) and with a little trik in programming and
good batteries into the RCX it's worth the space needed.
http://camp0s.altervista.org/Lego/x_fido/x_fido.htm i used it in my robot to
grab a ball, on the page you'll find pictures taken to the robot from
various angles and some video, one with the pneumatic-switch "switching" :)
To have some compressed air i used a "Frontline" bottle and a manual switch
and pump for the charge.
Hope this could help.
-----Messaggio originale-----
Da: news-gateway@lugnet.com [mailto:news-gateway@lugnet.com] Per conto di
Joe Strout
Inviato: giovedì 26 agosto 2004 22.20
A: lego-robotics@crynwr.com
Oggetto: electric pneumatic valve actuators?
I've been thinking a lot lately about electrically activated (as opposed to
manual) pneumatic valves. I've seen several designs on the net where
someone has taken a regular LEGO manual valve, and attached a motor. That's
clever, but I'm wondering if there are any other designs floating about.
Ideas that have come to mind:
- A pinch valve made by pinching shut a pneumatic tube with a wheel or lever
attached to a motor
- A from-scratch valve made out of LEGO parts (probably tricky to get that
air tight, but might be good enough)
- A real-world (commercial) valve actuator adapter for use with LEGO (tricky
bit here is finding one for a reasonable price)
Have you seen any of these, or something else entirely, to control the flow
of air with standard LEGO 9V electronics?
Thanks,
- Joe
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