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At 09:53 PM 1/14/01 -0600, you wrote: > I was having a boring evening - so I decided to test some theories > about Lego motors - and at the risk of seeming pedantic - here are > my findings: Did you reverse the motors by issuing the "Reverse" (...) (25 years ago, 15-Jan-01, to lugnet.robotics)
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| | Re: Motor mis-match.
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(...) Very nice results! Another interesting thing to measure would be differences of the outputs. If you know these, you can put 3 motors each on its output and by changing the sequence measure whether the slowing down in a series is due to some (...) (25 years ago, 15-Jan-01, to lugnet.robotics)
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| | Re: Motor mis-match.
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Steve Baker writes: > We *need* stepper motors! Noooooooo!!!!!! We need motors like servo motors, where they come in a box, and have a built-in controller. Except that they need to be multi-turn, and you need to be able to say "Measure the angular (...) (25 years ago, 15-Jan-01, to lugnet.robotics)
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| | Re: Limit Switches without using sensor inputs
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Very sharp! A very clever and elegant solution to a common problem. (25 years ago, 15-Jan-01, to lugnet.robotics)
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| | Re: Motor mis-match.
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Thank you! I'm glad to see someone has taken a semi-scientific approach to the whole question. I have one correction/comment to make though: It's doubtful that the Lego motors will heat up significantly enough to affect their operating speed. There (...) (25 years ago, 15-Jan-01, to lugnet.robotics)
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| | Motor mis-match.
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I was having a boring evening - so I decided to test some theories about Lego motors - and at the risk of seeming pedantic - here are my findings: Several times, people on this list have asked why their robots don't drive in a straight line - the (...) (25 years ago, 15-Jan-01, to lugnet.robotics)
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| | Re: I ordered a 1.5 and was sent a 1.0 Good or Bad?
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(...) Head to www.lego.com and search for Consumer Affairs in the search box in the upper right corner of the page. Click on "Help" in the results page. Search for the text "Consumer Affairs" in the page. There, you'll see a US Toll Free number, (...) (25 years ago, 14-Jan-01, to lugnet.robotics)
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| | Re: I ordered a 1.5 and was sent a 1.0 Good or Bad?
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(...) I have exactly the same problem. How do you contact Consumer Affairs? I don't know the number or web address. Actually, I didn't even know they had such an animal. Matthias Jetleb VA3-MWJ (25 years ago, 14-Jan-01, to lugnet.robotics)
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| | Re: Microsoft and LEGO Company Announce a Shared Dream
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(...) Ironic that Jacob wresting with the angel should appear like the devil (MSFT) dancing with the innocent (TLG). "Jacob" after all, means "back-biter". (25 years ago, 14-Jan-01, to lugnet.robotics)
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| | Re: Microsoft and LEGO Company Announce a Shared Doom
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(...) Hmm, yes, I agree! BTW, did you know that there are 3 adult LEGO fans at Electronic Arts? Steve Jackson (yes, _the_ Steve Jackson) is also an adult fan of LEGO. :-) (...) This is mostly what has me worried. There's nothing wrong with wanting (...) (25 years ago, 14-Jan-01, to lugnet.robotics)
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| | Re: Microsoft and LEGO Company Announce a Shared Doom
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(...) If they are seeking a partner to help them with LEGO Games then perhaps they SHOULD be seeing a company that has a proven GAME record. NOT a destroyer of the public good! (...) I would hope that M$ does not get involved at all. M$ is only (...) (25 years ago, 14-Jan-01, to lugnet.robotics)
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| | Re: Microsoft and LEGO Company Announce a Shared Doom
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I believe the main reason why TLC has joined with MS is that TLC has stopped growing for the first time in its history and is trying to find a way not to go bankrupt in a fair amount of time! The major cause of TLC to have losses is the ever more (...) (25 years ago, 13-Jan-01, to lugnet.robotics)
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| | Re: Need for chat server?
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(...) I would love to see a IRC chat server for lego-robotics! I believe the combination of mailinglist and IRC is perfect! IRC could bring people closer together on talking about this hobby, and offering fast and realtime answers and discussions. (...) (25 years ago, 13-Jan-01, to lugnet.robotics)
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| | Re: Microsoft and LEGO Company Announce a Shared Doom
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(...) Not to mention that IF someone DID do it (with all the M$ "Safeguards" in place) then the bottomless pit of money from the evil empire would quickly stamp some poor sod into the ground. NQC, LegOS and Legjos had better watch closely and double (...) (25 years ago, 13-Jan-01, to lugnet.off-topic.geek, lugnet.robotics)
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| | Re: Target online has Technic Star Wars for half price
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(...) The Destroyer Droid has on the end of the tail (actually pointing forward) three 3 clear-red single-studs. Also the 4 'guns' (2 at each side) have got 2 studs each at the bottom. This makes a total of 11 studs, or can anyone else find more? I (...) (25 years ago, 13-Jan-01, to lugnet.robotics)
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| | Re: Microsoft and LEGO Company Announce a Shared Doom
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(...) The difference is that now, Lego are reasonably open about letting people build their own tools like NQC that use the firmware inside the box. Most Linux enthusiasts would tell you that we don't especially need Lego to release all their (...) (25 years ago, 13-Jan-01, to lugnet.off-topic.geek, lugnet.robotics)
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| | Re: Limit Switches without using sensor inputs
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I like your Diode reversal circuit. Very good idea! Thanks for sharing it. -- Bob Fay California, USA rfay@we.mediaone.net (URL) (25 years ago, 13-Jan-01, to lugnet.robotics)
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| | Limit Switches without using sensor inputs
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Perhaps the biggest problem with Mindstorms is having only 3 sensor inputs. Using sensor inputs to control motor positioning is often a waste of valuable resource. Industrial automation has long used the concept of limit switches to control (...) (25 years ago, 12-Jan-01, to lugnet.robotics)
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| | Re: Robosports instructions
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(...) Brickshelf does not host scans of any currently available sets, only discontinued sets and current catalog, etc. (...) LEGO Shop at Home Service shop.lego.com or 1-800-LEGOLAND. Post a message to lugnet.market.buy-sell-trade asking someone to (...) (25 years ago, 13-Jan-01, to lugnet.robotics)
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| | Re: Robosports instructions
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To Dean (...) LEGO S@H and order a set. How can brickshelf be legal then? PS also what is S@H do they have a website. ----- Original Message ----- From: Dean Husby <nntp@akasa.bc.ca> To: <lego-robotics@crynwr.com> Sent: Saturday, January 13, 2001 (...) (25 years ago, 13-Jan-01, to lugnet.robotics)
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