 | | FLL/Robotics play opportunity at LEGOLAND (Volcanic Panic activity)
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Dear robotics fans, LEGO enthusiasts and LEGOLAND passholders: On Dec. 2nd, 2001, LEGOLAND California will host a FIRST LEGO League statewide robotics tournament. Using LEGO MINDSTORMS robotic creations, 30 different teams (...) (25 years ago, 24-Oct-00, to lugnet.legoland.california, lugnet.robotics, lugnet.robotics.events, lugnet.announce) !
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| | Re: Rechargable batteries
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My first two sets ran very hot and did not last long. I replaced them recently with Ray-O-Vac "Rechargeables" (no longer called Renewals) and, using the very same model PS1 charger they work well. Perhaps they fixed something. I think the point is, (...) (25 years ago, 23-Oct-00, to lugnet.robotics)
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| | Re: Rechargable batteries
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I traced the circuitry of the tower the other day 'cos I wanted to build one of my own to work correctly with the spirit.icx. It is not a very complicated piece of electronics and I didn't find anything in there that wouldn't tolerate an external 9 (...) (25 years ago, 23-Oct-00, to lugnet.robotics)
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| | Re: Rechargable batteries
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I have also used the Ray-O-Vac Renewals in the RCX. Unfortunately, I have not had good luck with them. They seem to work fine in the RCX, but recharging them (in the Ray-O-Vac charger specially intended for the Renewals, model PS1) invariably causes (...) (25 years ago, 23-Oct-00, to lugnet.robotics)
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| | Re: Rechargable batteries
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(...) Do you mean electronically or physically? As long as your power is 9volts DC with the correct polarity it should be fine. Physically you may need to use gator clips to hold it in. I've heard the 2.0's will come with USB versions and since USB (...) (25 years ago, 23-Oct-00, to lugnet.robotics)
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| | Re: Rechargable batteries
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(...) a (...) Guido (25 years ago, 23-Oct-00, to lugnet.robotics)
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| | Re: Mindstorms Mall Tour Pics
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Wow, this went to the wrong group! I dunno why. Trying again... "Tim Courtney" <tim@zacktron.com> wrote in message news:G2vy53.L99@lugnet.com... (...) (25 years ago, 23-Oct-00, to lugnet.general, lugnet.starwars, lugnet.robotics, lugnet.loc.us.ma)
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| | RE: single motor pneumatic pump and switch
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A truely ingenious little mechanism. I wonder if mechanical engineers in the real world ever get jealous of how easy it is for us Lego world engineers to do such rapid prototyping. ... and in reply to Ralph's comment, who was the famous figure who (...) (25 years ago, 23-Oct-00, to lugnet.robotics)
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| | Re: Rechargable batteries
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I use Ray-O-Vac Rechargeable Alkaline batteries and their special charger in my RCX with great results. I only seem to recharge them every few weeks and then they have lots left in them. The charger seems to charge each (of 4) individually, the (...) (25 years ago, 23-Oct-00, to lugnet.robotics)
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