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(...) Thanks, Kevin. Had to break-in as matters seem to be getting outta hand. It appears we're getting a new generation of pneumatic fans. Great! (...) No, you use them the same way. The pneumatic switch is basically a directional control valve. It (...) (19 years ago, 19-Nov-05, to lugnet.technic)
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| | Re: Pneumatic Questions
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(...) It is possible to combine multiple switches into a release-free switch, but they would probably be more load than a single switch used on dual ported piston. Kevin (...) (19 years ago, 19-Nov-05, to lugnet.technic, FTX)
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| | Re: Pneumatic Questions
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(...) I'm glad if I saved you some bucks. The fourth exhaust port is a necessity (for the cylinders to work) and a nuisance (being inaccessible). I first learned about it from Erik Brok's site. In real-life pneumatics, this port would be brought out (...) (19 years ago, 19-Nov-05, to lugnet.technic)
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| | Re: Pneumatic Questions
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In lugnet.technic, Andrew Meyer wrote: "...if you set up a system in which one tank was pressure and one was vacuum, and applied both to a... 90d phase shift 2 cyl engine... so that when one side of a cylinder had pressure applied, the other would (...) (19 years ago, 18-Nov-05, to lugnet.technic, FTX)
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| | Re: Pneumatic Questions
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(...) Hi Dr. Soh, Nice to hear from you. I've never actually built with the original pneumatics, but my understanding is that the way to use switches in the old pneumatics is different than the way you use them with dual ported pistons. Don't you (...) (19 years ago, 18-Nov-05, to lugnet.technic)
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| | Re: Pneumatic Questions
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(...) Did you? Was it? Haha, I recall there was a long discussion on vacuum not a long time ago. CSSoh (19 years ago, 18-Nov-05, to lugnet.technic)
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| | Re: Pneumatic Questions
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(...) Sort of like a DPDT reversing switch arrangement? However, if you study how the LEGO pneumatic valve is built you know it's not going to work. Namely, it has a fourth exhaust port that's inaccessible. You'll have to plug up this port for your (...) (19 years ago, 18-Nov-05, to lugnet.technic, FTX)
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| | Re: Pneumatic Questions
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(...) The older style pumps didn't have a built in waist valve. (URL) If you connect an older pump to your compressor, then a hose from the pump to the centre port of the 2x4 "distribution block", (URL) one of the other ports (i can't remember which (...) (19 years ago, 18-Nov-05, to lugnet.technic, FTX)
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| | Re: Pneumatic Questions
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(...) Never mind. I just figured out the answer to my own question. It was an easy one. (19 years ago, 17-Nov-05, to lugnet.technic)
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| | Re: Pneumatic Questions
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(...) Just out of curiosity, how would one go about creating a continuous vaccume? A temporary one can be created inside a piston by clogging one end, but how could one create a continuous vaccume? Would this need to be done in, say, an accumulator (...) (19 years ago, 17-Nov-05, to lugnet.technic)
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| | Re: Pneumatic Questions
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(...) This is a good question. When using traditional pressure only, the force producde by the air pressure on the faces of the pistons is enough to flip a switch. Just yesterday someone asked me "If instead of using pressure, you used vaccume" (...) (19 years ago, 17-Nov-05, to lugnet.technic)
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| | That's annoying was Large Crawler/Track-Layer And New Shovel Project
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(...) Your track design is extremely similar to one I've been working on Yours (URL) mine (URL) back view (URL) I wasn't going to publish mine till I'd finished the moc, but theirs no point waiting now. As you can see we've both used basically the (...) (19 years ago, 17-Nov-05, to lugnet.technic, FTX)
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| | Pneumatic Questions
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I am comtemplating the purchase of one of those one-way valves from the old pneumatic sets. I was wondering, if you set up a system in which one tank was pressure and one was vacuum, and applied both to a 2-cyl engine, would it turn with more power (...) (19 years ago, 17-Nov-05, to lugnet.technic)
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| | Large Crawler/Track-Layer And New Shovel Project
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(URL) Hello! All you crane and excavator builders out there should like this one - At the link below are pictures of a huge crawler I've been working on: (URL) Like most of my recent projects it does not use Lego brand motors for power, I'm using a (...) (19 years ago, 17-Nov-05, to lugnet.technic, FTX)
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| | Mata Nui mast
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I drew this Mata Nui mask based on the original oval-stone look from 2001. The mask is drawn within a Golden rectangle & follows golden proportion. I just wanted to see if it would look good proportionally as Mata Nui is the 'great spirtit' of (...) (19 years ago, 16-Nov-05, to lugnet.technic.bionicle, FTX)
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| | Re: Hwy Tractor Trailer
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(...) Thanks Chris, this truck is probably my favorite as well. And I will post when the BIG trailer is complete.Take Care! Glen (19 years ago, 15-Nov-05, to lugnet.technic)
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| | Re: Hwy Tractor Trailer
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Hey Glen, I must say, that’s one fine looking truck. It's by far my favorite in your BrickShelf folder. I'm looking forward to the trailer when it’s done so make sure you post again. Thanks for sharing, Chris. (19 years ago, 15-Nov-05, to lugnet.technic)
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| | Re: MOC: Minifig-scale mobile crane
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(...) announce the availability of a new boom option for our popular BRE-550M movile crane. Already used extensively with the many lattice boom options, we are now pleased to make available our 3-section telescopic boom with optional SSL. Now you (...) (19 years ago, 15-Nov-05, to lugnet.technic, lugnet.town, lugnet.announce.moc, FTX)
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| | Re: Announcing: NQJ or Brick-it-Forward
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Larry Pieniazek wrote: > In lugnet.org.ca.rtltoronto, Chris Magno wrote: >> In the Spirit of Brick It Forward aka NQJ >> ((URL) I can offer for trade, a VERY rare, >> VERY well made, authentic JLUG train container. (as well as a few bonus >> items) (...) (19 years ago, 14-Nov-05, to lugnet.org.ca.rtltoronto, lugnet.market.jambalaya, lugnet.market.buy-sell-trade, lugnet.general, lugnet.technic) !
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| | Re: My first truck mounted crane
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(...) Ross Thanks for the compliments! I finally received the last of my bricklink orders, so I have proceeded in tearing apart the LG-1550, and am working on strengthing the outriggers. I hope to have the crane back together and some pictures (...) (19 years ago, 10-Nov-05, to lugnet.technic)
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