 | | Re: 2 motors, different speeds
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You can put rotation sensors on each wheel, and then monitor them for changes. If one gets ahead of another, then slow that motor down. This works well, but differences in the wheels cause it to turn slightly. Andy (...) (25 years ago, 28-Nov-00, to lugnet.robotics)
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| | Re: Ball-less mice (was :Re: FW: Another DIY sensor)
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(...) I can confirm this, at least for the US market; I just bought the Logitech optical wheel mouse, and it was $30 at Fry's in Campbell, California. (25 years ago, 28-Nov-00, to lugnet.robotics)
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| | Re: Lego Mindstorms Europe Demo Tour
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Hi all, (...) no problem with that. BUT ! We took part at the Lego VisionCommand 2000 Competition in Germany. We build an synchrodrive without lego turntables. The Lego chief engineer (don't remember the name, Steven ?????) toke a look at it an was (...) (25 years ago, 28-Nov-00, to lugnet.robotics)
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| | Re: Lego Mindstorms Europe Demo Tour
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(...) I suspect the custom pieces that make their way into sets began life as a modification of an existing part. After all, I doubt they wanted to make a custom mold until they were certain it did what they wanted it to. John A. Tamplin (...) (25 years ago, 28-Nov-00, to lugnet.robotics)
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| | Re: Lego Mindstorms Europe Demo Tour
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Andy Lynch wrote: >There were also some other bricks modified to press into the touch sensors >on the blue robot. There may have been more, but I stopped looking at that >point. > >Don't get me wrong, the robots were *still* impressive, but I was (...) (25 years ago, 28-Nov-00, to lugnet.robotics)
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| | Re: 2 motors, different speeds
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(...) Yes I think you're expecting too much. :) Two "identical" motors will go at a *similar* speed if set to the same power level, but chances of them going at the *same* speed is highly unlikely. Bryan (25 years ago, 28-Nov-00, to lugnet.robotics)
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| | Re: Mindstorms book
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(...) Of course there are in internet, but what if you don't have it ? Think about 12+ years old kids !?! Rainer (25 years ago, 28-Nov-00, to lugnet.robotics)
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| | 2 motors, different speeds
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I have two motors set to the same power levels, but one is always going slightly faster than the other. I've tried it at different power levels but still the same result. Am I expecting too much for them to go at the exact same speeds? Or am I (...) (25 years ago, 28-Nov-00, to lugnet.robotics)
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| | Ball-less mice (was :Re: FW: Another DIY sensor)
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The optical mice that do not require a special tablet to operate all use the same sensor, made by Agilent (formaly HP). It is the HDNS2000. The spec can be found here: (URL) this thing has 2 types of output: - PS/2 (connects directly to a PC) (used (...) (25 years ago, 28-Nov-00, to lugnet.robotics)
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| | Re: R2-D2 with RXC
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Hi ! I did it ! It was very difficult 'cos info from the Lego WebSite are poor. By inspecting picture on many angles, I understood some tips. So, If you're in trouble, I shall send you from pics from my digital camera. My robot is not perfect but (...) (25 years ago, 25-Nov-00, to lugnet.robotics)
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