Subject:
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Re: Using airtanks on 8868
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Newsgroups:
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lugnet.build
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Date:
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Mon, 20 Sep 1999 13:46:54 GMT
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Viewed:
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781 times
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Selçuk wrote in message ...
> Hydraulic and pneumatic systems work differently. In the first one, your
> working fluid is an incompressible one (liquid oil, generally) so you have
> the full control of the stroke length of any piston.But in the case of
> pneumatics, the working fluid is a compressible one (even compressed air)
> and you practically cannot control the stroke of a piston, other than using
> mechanical constraints.
>
> Selçuk
Outside, in the real world, I had actually designed a system for controling
stroke of an air cylinder. It was a pressure valve which increased the
pressure on one side of the cylinder, and increasing it slowly on the other.
It was used to position components on a linear robotic assembly line. It was
a very nice "soft" start and end, and worked much like a joystick. The air
tanks worked only as a plenum, and it was a closed system.
Now to make the same with Lego....
Eric
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Message is in Reply To:
 | | Re: Using airtanks on 8868
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| Hydraulic and pneumatic systems work differently. In the first one, your working fluid is an incompressible one (liquid oil, generally) so you have the full control of the stroke length of any piston.But in the case of pneumatics, the working fluid (...) (25 years ago, 20-Sep-99, to lugnet.build)
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