 | | Re: What the? Hydraulics
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(...) Hydraulics and pneumatics are similar. Pneumatics uses air, which is a gas and can be compressed. Air pressure difference is what makes pneumatics work. Hydraulics uses fluids which compresses a little, but not much compared to gasses. Both (...) (19 years ago, 23-Nov-05, to lugnet.technic)
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| | Re: System to allow pressure and vacuum for piston at the same time
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(...) <snip> (...) <snip> (...) <snip> (...) <snip> (...) Wow! Great stuff! But why hypothetical? Would have loved to see the running engine and how it compares with the traditional ones using just compressed air, which was the original question. (...) (19 years ago, 22-Nov-05, to lugnet.technic)
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| | What the? Hydraulics
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Kevin Clague- How can a lego pneumatic do hydraulic work? If I'm not much mistaken, hydraulics and pneumatics use two diferent sources of power. (19 years ago, 22-Nov-05, to lugnet.technic)
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| | Re: Random Pneumatic idea/question
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(...) Yes, I was wondering what method should be used to bleed them successfully. The clamp idea is a good one. My compressor is very basic. I don't have buggy motors. To build the pressure/vac engine all you would have to do, I assume, is split the (...) (19 years ago, 22-Nov-05, to lugnet.technic)
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| | Re: Random Pneumatic idea/question
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(...) You will undoubtedly have to bleed the air out of the system when you put in your hydraulic fluid. Otherwise the system won't perform as well. (...) Kev (19 years ago, 22-Nov-05, to lugnet.technic)
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| | Re: Random Pneumatic idea/question
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(...) Hi Billy, Well, my recollection of a composite five port switch was faulty. When I tried to create a two piston timing circuit (precursor to motor), it would leak because all four switches would be on, letting pressure directly through to (...) (19 years ago, 22-Nov-05, to lugnet.technic)
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| | System to allow pressure and vacuum for piston at the same time
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Hi, Single LEGO pneumatic switches are not capable of controlling a pneumatic system that uses both pressure and vacuum to drive a given cylinder at the same time. A single switch does not let you capture the exhaust inherint when a piston contracts (...) (19 years ago, 22-Nov-05, to lugnet.technic, lugnet.robotics, lugnet.announce.moc) !
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| | Re: NQJ - wanna trade? -Followup
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(...) Calum, The great thing about NQJ aka Brick It Forward is that there is no ending time set. Just to keep you in the loop, I was in deep discussion with several people yesterday who were offering me fantastic sets. I am not at liberty to name (...) (19 years ago, 22-Nov-05, to lugnet.market.jambalaya, lugnet.market.buy-sell-trade, lugnet.general, lugnet.technic, lugnet.org.ca.rtltoronto)
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| | Re: Random Pneumatic idea/question
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(...) Having now made a hydraulic pump, I figured it was time to go to the next step and make a compressor. (URL) This is the first working model. Again, the tank represents the load. I decided to use the pump motor as the switch mechanism for my (...) (19 years ago, 22-Nov-05, to lugnet.technic)
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| | Re: Pneumatic Questions
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(...) I don't understand this statement. (...) In this compressor/engine schematic I drew yesterday, vaccume is the exhaust for pressure, and pressure is the exhaust for vaccume inside the engine. The part of the compressor that creates vaccume (...) (19 years ago, 21-Nov-05, to lugnet.technic)
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