Subject:
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Re: Does Pneumatic Suck?
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 9 Jul 1999 04:48:33 GMT
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Original-From:
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Chris Osborn <fozztexx@fozztexx.com^stopspam^>
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Viewed:
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660 times
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On Jul. 08 99, 21:19 PDT, "Hari Wiguna" <hari@mindvision.com> wrote:
> I've seen many pneumatic PUMP systems. But my goal is to have a
> MindStorms controlled suction system that can lift a LEGO brick
> (on the flat side of course). But before I get that far... I
> cannot seem to get my pump to "suck", it only "pumps" -- hence the
> name, I guess ;-)
Only the original pneumatic system had "suction" capability. The
pump and the piston were actually identical units, other than the
pump having a spring on it. A special valve brick was used that
contained two one way valves to make sure air flowed in the proper
direction to actuate the piston.
Lego stopped doing it that way though, and switched to having two
inputs on the pistons and using pressure in both directions to move
the piston.
The nice thing I found about the older system wasn't so much the
suction, but that you could hook up other single input devices
instead of the Lego piston. My favorite to hook up was a flattened
Hi-C drink box. I'd shove the tube in the straw hole, seal around
it with some clay or other sticky stuff, and pump it full of air
and use it as a jack. I could lift the clothes dryer (albeit not
very far, the drink box isn't huge) with it. :-)
---
Chris Osborn FozzTexx Enterprises
707 226 7629 - Voice 2136 Coronado Ave.
707 581 1797 - Fax Napa, CA 94559
<fozztexx@fozztexx.com> <http://www.fozztexx.com/>
--
Did you check the web site first?: http://www.crynwr.com/lego-robotics
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Message is in Reply To:
 | | Does Pneumatic Suck?
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| Hi Technic heads, Is it possible to build a pneumatic _SUCTION_ system using only LEGO parts? I've seen many pneumatic PUMP systems. But my goal is to have a MindStorms controlled suction system that can lift a LEGO brick (on the flat side of (...) (25 years ago, 9-Jul-99, to lugnet.build, lugnet.robotics)
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