 | | Re: Other pneumatic questions.
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(...) Billy, I'm pretty sure you could, but I doubt you'd want to use a piston per bit of memory. (...) Instead you might want to use a 1x10 technic brick, with long pins with friction in them. The idea being that you can slide the pins in the (...) (19 years ago, 19-Nov-05, to lugnet.technic)
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| | Re: Crazy building moment?
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Hi Like Tommy Eriksson I have also decided to post a reply to this old thread. I am in the process of trying to make LEGO fly but unlike Tommy, I am going for a small light powered glider that is catapulted from a Technic "ballista-like" affair that (...) (19 years ago, 19-Nov-05, to lugnet.technic, FTX)
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| | Random Pneumatic idea/question
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You guys are smart. I get lost reading your posts but can appreciate the genius displayed in them. Could pneumatics be used to pump a liquid? I mean, you know how air pressure is used in spray bottles/soap dispensors? The moving air goes over a gap (...) (19 years ago, 19-Nov-05, to lugnet.technic)
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| | Other pneumatic questions.
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Hi all. I'm sorta new here so, I'm not real familiar with way the forums work. Anyhow, having seen the three position piston control by Kevin L. Clague, and other various pneumatic logic devices using Boolean logic and Boolean gates, I was (...) (19 years ago, 19-Nov-05, to lugnet.technic)
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| | Re: Pneumatic Questions
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(...) Just so. (...) No, it wouldn't walk backwards. To make it work, you'd only have to interchange the hoses at the switches. That's because a suction force acts in the opposite direction to the traditional compressed air. Your walker will then (...) (19 years ago, 19-Nov-05, to lugnet.technic, FTX)
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| | Re: Pneumatic Questions
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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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