Subject:
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Re: RCX Controlled Air Compressor Tester
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 7 Oct 1999 11:39:28 GMT
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Original-From:
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S. Crawshaw <SC10003@stopspamENG.CAM.AC.UK>
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Viewed:
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1455 times
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On Thu, 7 Oct 1999, Antony Furneaux wrote:
> I have some of the original pneumatic cylinders with only one inlet.
> They have been used for various non Lego uses. While coming back from
> the dark ages, I have discovered that all three still work once they
> have been pumped once by had. They can stick a bit at first use. This
> includes the cylinder with blackened edges which had been used as a
> flame thrower. This means the petrol/gasoline hasn't done to much harm
> to the seals. The others definitely got used with water and those still
> work OK too. However the 2-way value 2x4 brick with the three inlets has
> completely given up.
But do you reckon the seals are the same? They may use different material
now...
BTW, does anyone have any good uses for the old cylinders? They are pretty
feeble when pulling (ie relying on "vacuum"), and seem (IMO) to be less
well-built than the newer ones.
The old hand-pumps seem to be acceptable as cheap alternatives to the
current ones, so long as you put a 2-way valve on them. (Assuming you
still have a working one... ;-) )
Stuart
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Message has 1 Reply:
 | | Re: RCX Controlled Air Compressor Tester
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| I'm using one of my old cylinders for my cut-off pressure switch. This only uses one of the inlets any way. They are OK for once only trigger events. They can also be used to transfer motion from one place to another by simply connecting two with (...) (25 years ago, 7-Oct-99, to lugnet.robotics)
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Message is in Reply To:
| | Re: RCX Controlled Air Compressor Tester
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| I have some of the original pneumatic cylinders with only one inlet. They have been used for various non Lego uses. While coming back from the dark ages, I have discovered that all three still work once they have been pumped once by had. They can (...) (25 years ago, 7-Oct-99, to lugnet.robotics)
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