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Why is this two stage? I could not follow this design clearly but are you feeding the output of one stage to the input of the next? Two compressor pistons in parallel is something else (double acting?? I am not sure what)... Cool design no mater (...) (25 years ago, 29-Sep-99, to lugnet.robotics, lugnet.build, lugnet.robotics.rcx)
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| | Re: RCX Controlled Air Compressor Tester
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(...) Hi Chio Thats a pretty interesting design. Nice work! (URL) Here is a link to some pictures of the two stage compressor I built. Hopefully there are enough details shown to reconstruct it but if you have any questions let me know. The actual (...) (25 years ago, 29-Sep-99, to lugnet.robotics, lugnet.build, lugnet.robotics.rcx)
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| | Re: RCX Controlled Air Compressor Tester
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c s soh <cssoh@singnet.com.sg> wrote in message news:37F21B8E.1C3CD6....com.sg... (...) What kind of maximum pressure (psi) can you get? I built a pressure sensor that I will publish very soon based on the Lucas sensors available from Digikey. I (...) (25 years ago, 29-Sep-99, to lugnet.robotics, lugnet.build, lugnet.robotics.rcx)
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| | RE: RCX Controlled Air Compressor Tester
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The page on compressor comparisons is really informative. I'm honoured that you felt my design was worthy of testing. The reason I made it a two stroker was to "balance" the load on the driving system. Michael Powell's compressor tends to "lump" (...) (25 years ago, 29-Sep-99, to lugnet.robotics, lugnet.build, lugnet.robotics.rcx)
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| | Re: RCX Controlled Air Compressor Tester
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(...) Thanks, It could possibly be done but I've not tried it. It would have made the air compressor tester more complicated than necessary. As you can see I'm really a minimalist. One of the design goals was to keep it simple yet fully functional. (...) (25 years ago, 29-Sep-99, to lugnet.robotics, lugnet.build, lugnet.robotics.rcx)
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| | Re: RCX Controlled Air Compressor Tester
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(...) <snipsnip> (...) <snipsnip> (...) That seems easily solved with some extra gears, or am I missing something? I mean, you could amplify the rotation of the axle by five (or three, or two) any number of times until the rotation sensor does pick (...) (25 years ago, 29-Sep-99, to lugnet.robotics, lugnet.build, lugnet.robotics.rcx)
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| | Re: NQC 2.0 and some math questions
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(...) x = y % z is equivalent to (where w is an temporary integer): w = y / z; x = y - z * w; I can't think of a useful use of % just with constants. Ciao. Marco. (25 years ago, 29-Sep-99, to lugnet.robotics.rcx.nqc)
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| | RE: RCX Controlled Air Compressor Tester
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For what its worth, the Lego Shop@Home catalog is offering the #8250 Rescue Sub for $25.00, discounted from $49.50. Big pump, air tank, one valve, one big cylinder, long yellow beams and nifty molded shapes. For the price, I'm thinking of getting (...) (25 years ago, 28-Sep-99, to lugnet.robotics, lugnet.build, lugnet.robotics.rcx)
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| | Re: Listening to IR via NQC
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(...) FWIW, I did something similar to this using NQC and the Datalog. It uses variable0 for polling and letting the PC know the Datalog has some "stuff" it wants to send. (URL) (25 years ago, 28-Sep-99, to lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)
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| | Re: RCX Controlled Air Compressor Tester
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(...) I have tried to emphasise all the time in my web pages. It has probably reached the theoretical limit of efficiency for the small pump. It will be difficult to build another compressor that can surpass his mini compressor. On the other hand, (...) (25 years ago, 28-Sep-99, to lugnet.robotics, lugnet.build, lugnet.robotics.rcx)
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