 | | Re: Home-made One-way valve
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(...) I think the reason for that is simply that you can't store very much "vacuum" in a tank. While you can pressurize a tank to several hundred PSI or better, for vacuum you're limited to completely (well, OK, nearly completely) evacuating it--a (...) (24 years ago, 20-Dec-01, to lugnet.robotics)
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| | Re: Home-made One-way valve
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(...) Somehow I'm a bit queasy about this business of "storing vacuum" in a tank. So I checked with the local supplier of industrial gases. If you need a tank of compressed air, that's no problem. But a tankful of vacuum, er that's not listed in the (...) (24 years ago, 20-Dec-01, to lugnet.robotics, lugnet.technic, lugnet.build)
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| | Re: Contests?
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I'm working on a new web site which I hope to launch over the holidays, but I've got a couple of January events listed on the calendar already. It's basically non-functional now, so if you know of an event, drop me an email or post it here and I'll (...) (24 years ago, 19-Dec-01, to lugnet.robotics)
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| | Contests?
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Hi. Are there any robot contests other than the Trinity College Fire Fighting Robot Constest being held in 2002? Best Wishes Barbara Nostrand (24 years ago, 19-Dec-01, to lugnet.robotics)
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| | Re: Proximity sensors.
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see (URL) capteur section ----- Original Message ----- From: "Ismael Salvador" <issalig@doctor.upv.es> To: <lego-robotics@crynwr.com> Sent: Wednesday, December 19, 2001 6:26 PM Subject: Proximity sensors. (...) building (...) cheap (...) (24 years ago, 19-Dec-01, to lugnet.robotics)
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| | Re: Chemical Sensors
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You can interface pH and other sensors with Mindstorms using logIT, look at (URL) ColePalmer (mentioned below) it is not clear to me what they offer in terms of Mindstorms compatible sensors? - Thomas Hoeg-Jensen (...) (24 years ago, 19-Dec-01, to lugnet.robotics)
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| | Re: Chemical Sensors
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(...) J. David Malinsky University of Calgary Department of Chemistry Phone (403) 220-5371 Fax (403) 289-9488 mailto:malinsky@ucalgary.ca (24 years ago, 19-Dec-01, to lugnet.robotics)
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| | Chemical Sensors
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Does anyone know of sources for chemical sensors. Things that can report ph, oxidation, etc? Robb, or bid at (URL) (24 years ago, 19-Dec-01, to lugnet.robotics)
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| | Re: Proximity sensors.
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(...) building (...) For cheapness the following probably can't be beat: (URL) ($free) otherwise you can buy IR proximity sensors based on reflected IR: (URL) ($40) (URL) ($34) (URL) ($14) or a sonar range sensor: (URL) ($80) or a brick that (...) (24 years ago, 19-Dec-01, to lugnet.robotics)
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| | Re: Proximity sensors.
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I have done a few proximity sensors using the light sensor and the RCX's messaging. Examples are here: (...) (24 years ago, 19-Dec-01, to lugnet.robotics)
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