Subject:
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Re: Pneumatics and its uses
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 23 Jun 2000 22:33:46 GMT
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Viewed:
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1768 times
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There are a couple of options for the addition of pneumatics to
RCX based lego creations.
1. Use technics motors to drive technics valves to operate the
pneumatic stuff.
Kind of a waste though, why not just use the motors directly.
2. Use R/C servos to control the technics valves to operate the
pneumatic stuff.
Not bad, there are various homebrew ways of controlling R/C servos
from the RCX.
3. Use solenoid operated air valves to operate the pneumatic stuff.
I have already tried and rejected 1 and 2. I am on 3. There's a guy
on ebay who has been selling Clippard ETO 3 valves. They are 6 volt
devices and seem to work just great at the pressures involved. I am
in the process of building a 6 "channel" controller, so I can control
six lego pneumatic circuits.
As a general note on pneumatic odds and ends, the blue air tanks aren't
big enough! I have discovered that there are some modest sized cylindrical
tanks disguised as supersoakers which make great reservoirs. Also the
little pump-up airboat sold by KB has a blue air tank which I have also
used. Medicine bottle tops seem to fit the threads on these tanks!
JB
> Hi,
>
> This is a really elementary question, but what can I use pneumatics
> for? Can I use it for precision controlling? And what are solenoids??
> It seems to me that most of the pneumatic controls are pump and go type
> of tasks and there is no way to stop it and continue it later on??
>
>
> Ram
>
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Message has 2 Replies:
 | | Re: Pneumatics and its uses
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| (...) Sounds good! I checked out the Clippard home page and I can't find the valves you are referring to. Nor can I find any relevant EBay auctions. Do you have any more info? One thing that I tried is running the bot off liquified gas. CFC's would (...) (26 years ago, 11-Jul-00, to lugnet.robotics)
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