Subject:
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Re: Pneumatic Hand-Pump
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Newsgroups:
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lugnet.robotics
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Date:
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Tue, 30 Mar 1999 16:03:50 GMT
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Viewed:
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935 times
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In lugnet.robotics, Ralph Hempel writes:
> Kipling wrote:
>
> > Greetings all,
> > Has anyone found any interesting applications for the Pneumatic Hand-Pump?
> > I found myself puzzling over my rapidly growing collection of them. It does
> > not seem to be well suited for a compressor due to it's size and the spring.
>
> Ah yes, the brick separator of Technic - what to do with those hand pumps...
>
> I've tried to take them apart, not too hard to do with jewellers screwsdrivers
> to pry the tabs apart - carefully. Removing the spring wont get you much
> benefit because of the AREA of the piston. Any useful pressure is going
> to be too much for a geared down motor...or too slow.
>
> Keep them as spares, or sell them to unsuspecting eBay buyers....
>
> Cheers,
>
> Ralph Hempel - P.Eng
Well, I've actually built a compressor with one hand pump (with the spring
removed). It was working, but I had to gear down the motor very much and the
resulting compressor was very slow.
You can see it employed in one of my robotic creatures (S5) at my web site:
http://www.geocities.com/CapeCanaveral/Galaxy/9449/
Ralph's double action compressor is definitely better.
Mario
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Message is in Reply To:
 | | RE: Pneumatic Hand-Pump
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| (...) Ah yes, the brick separator of Technic - what to do with those hand pumps... I've tried to take them apart, not too hard to do with jewellers screwsdrivers to pry the tabs apart - carefully. Removing the spring wont get you much benefit (...) (25 years ago, 30-Mar-99, to lugnet.robotics)
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