 | | Re: RotationNavigator accuracy
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(...) rotation sensor counts tread rotation, but, because of skidding, the tank doesn't turn exactly the same way as treads do (...) rotation point position/drive length depends on tread width, center of weight position, speed and geometry of treads (...) (22 years ago, 14-Jan-04, to lugnet.robotics.rcx.java)
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| | Re: RotationNavigator accuracy
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(...) I guess it's more hardware related problem turning with tank-style robot is ALWAYS a trouble because tank doesn't have defined centre of rotation. If you imagine the simple robot - two wheels and a castor - there is rotation center well (...) (22 years ago, 14-Jan-04, to lugnet.robotics.rcx.java, FTX)
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| | Re: Where can I find Ultimate Builders Set?
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Ruth and others, Many Bricklink sellers WILL ship internationally. Sometimes, you just need to find someone you both know to verify that you are a trustworthy customer, and not a scammer who will ask for a refund on PayPal. One store in particular, (...) (22 years ago, 14-Jan-04, to lugnet.robotics)
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| | RE: What the heck? Pitsco selling RCX for $125!
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Before the end of 2003, the RCX from Pitsco was $79. I was going to buy a few because Pitsco sells 1.0 (the one with the power jack). So, sometime between Halloween and now the price went up 58%. (...) (22 years ago, 14-Jan-04, to lugnet.robotics)
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| | Re: Where can I find Ultimate Builders Set?
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(...) That is true... ...but I have tried to purchase those sets through them without any luck. The bricklink stores that had them wouldnt ship internationally. I have also tried some other stores on the net without any success...That is why I (...) (22 years ago, 14-Jan-04, to lugnet.robotics)
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| | Re: Where can I find Ultimate Builders Set?
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(...) That depends on which store *ON* Bricklink you visit. I've bought lots of stuff on Bricklink that's been shipped to me even though I don't live in the same country as the seller. >> Mark (22 years ago, 14-Jan-04, to lugnet.robotics)
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| | Re: Where can I find Ultimate Builders Set?
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(...) command set too. Both sets have been discontinued not only in the lego shop, but toy'r'us too. Looking on the web, I couldn’t find any site that would sell it (out of stock or discontinued) so my suggestion is ebay. There are people selling (...) (22 years ago, 14-Jan-04, to lugnet.robotics)
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| | Re: What the heck? Pitsco selling RCX for $125!
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(...) Isn't this basically the same deal that was available from Lego S@H and even some of the Lego stores for the past few years? (22 years ago, 13-Jan-04, to lugnet.robotics)
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| | vision command/macintosh question
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Hi, I'm new to this list. I was just wondering if anyone out there knows if there is a mac version of the vision command image recognition software? I'm running robolab and wanted to add the camera. Or is it possible to use robolab itself with a (...) (22 years ago, 13-Jan-04, to lugnet.robotics)
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| | Robo Waiter - a BrickFest PDX Robot competition
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Announcing a robot competition for BrickFest PDX... Robo Waiter: Line tracking while carrying mini-soccer balls ---...--- Build a Robotic Waiter that can carry a tray full of mini Lego soccer balls (or equivalently, basket balls) around a track. (...) (22 years ago, 13-Jan-04, to lugnet.robotics, lugnet.events.brickfest, lugnet.robotics.events) !!
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| | Re: Where can I find Ultimate Builders Set?
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(...) You might try LEGO's site, I think it's (URL) As well, there are usually numerous European seller's on E-Bay. Also try (URL) (22 years ago, 13-Jan-04, to lugnet.robotics)
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| | Re: The BrickOS Task Manager
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(...) C++ is more particular with types than regular ol' C. However, I think BrickOS's definition of NULL in mem.h is incorrect (as this was causing one of the problems in the execi call). IMO, it should be defined like so: #ifdef __cplusplus (...) (22 years ago, 13-Jan-04, to lugnet.robotics.rcx.legos)
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| | RotationNavigator accuracy
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Hi, I just try the rotation navigator class and have some problems with turning accuracy. My robot is a tank with treads and moving without turning works well, travel() moves the correct distance. Turning with rotate() or gotoAngle() is problematic. (...) (22 years ago, 13-Jan-04, to lugnet.robotics.rcx.java)
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| | Re: The BrickOS Task Manager
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(...) When saved as multi.c, but not when saved as multi.cpp (...) Start multiple tasks within a program that uses objects. I could rewrite a number of parts to use structs instead, but I just wanted to check that there wasn't some easy solution. (...) (22 years ago, 13-Jan-04, to lugnet.robotics.rcx.legos)
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| | Re: External power supply ?
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(...) I think you could find something cheaper than that (with a fixed-voltage output?) (...) The RIS 1.0 didn't support variables, but 1.0 bricks can use latest firmware so there is NO problem here ! (...) As Chris mentionned elswhere in this (...) (22 years ago, 13-Jan-04, to lugnet.robotics)
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| | What the heck? Pitsco selling RCX for $125!
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(URL) Guess LEGO has decided that I no longer need to purchase RCX's. Not sure how that helps them financially... - Rob (22 years ago, 13-Jan-04, to lugnet.robotics)
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| | Re: External power supply ?
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(...) I ran by Radio Shak today and they had one 3-12v rated at 1A I think. It was $37! (...) I have considered that too. But uncovered another potential complication. In researching around somewhere... I think at lego.com actually it said that RCX (...) (22 years ago, 13-Jan-04, to lugnet.robotics)
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| | Re: HELLO?!, LEGO CO. ! was: Will the educational arm of Technic & Mindstorms continue?
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Lego haven't said they are dropping it. Some journalist suffering from premature extrapolation decided thats what Lego's original statement meant. (22 years ago, 13-Jan-04, to lugnet.dear-lego, lugnet.robotics, lugnet.general, lugnet.technic)
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| | Re: The BrickOS Task Manager
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(...) Were you able to compile it as is? What are you trying to do? What errors are you getting? I tested that with version xx.09, not the latest one. Steve (22 years ago, 13-Jan-04, to lugnet.robotics.rcx.legos)
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| | Re: NQC's future
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"Brian Davis" <brdavis@iusb.edu> wrote in message news:HrB87H.17p1@lugnet.com... (...) future one) for NQC (...) I think your question probably meant "can I use FastTimer in defining events because I want better resolution than is possible with (...) (22 years ago, 12-Jan-04, to lugnet.robotics.rcx.nqc, lugnet.robotics.spybotics)
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| | Re: HELLO?!, LEGO CO. ! was: Will the educational arm of Technic & Mindstorms continue?
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(...) More to the point, their competitors (eg MegaBloks) are churning out almost nothing BUT basic bricks. They have a very narrow range of parts. If Lego want to compete there, they need to play to their strengths which is their enormous inventory (...) (22 years ago, 13-Jan-04, to lugnet.robotics)
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| | Re: Vision Command XP
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(...) This patch is only for preventing Mindstorms from automatically launching on an XP restart. (22 years ago, 12-Jan-04, to lugnet.robotics)
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| | Re: The BrickOS Task Manager
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(...) Thank you again for the help, but unfortunately it only compiles when saved as a '.c' file. Some of my code depends pretty heavily on classes... is there any easy change to make this work as object oriented code? *just spent two hours trying (...) (22 years ago, 12-Jan-04, to lugnet.robotics.rcx.legos)
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| | Re: HELLO?!, LEGO CO. ! was: Will the educational arm of Technic & Mindstorms continue?
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(...) What about RC cars, racers, spybots and all that super-specialized stuff? -- Anders Isaksson, Sweden BlockCAD: (2 URLs) (22 years ago, 1-Jan-04, to lugnet.dear-lego, lugnet.robotics, lugnet.general, lugnet.technic)
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| | Gyro & RCX
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Hi, I want to hook up a rate gyro to the RCX. I already have a Servo port to hook the gyro into, but I want to use the output of the gyro as a sensor on the RCX. I was thinking about using something on the lines of: (URL) has a small amount of power (...) (22 years ago, 12-Jan-04, to lugnet.robotics)
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| | RE: HELLO?!, LEGO CO. ! was: Will the educational arm of Technic & Mindstorms continue?
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Disclaimer: My opinions are my own. Read at your own risk. I think it's very important that we all understand that the educational arm (Pitsco-Dacta) and the consumer arm operate under two completely different marketing concepts. That's why the (...) (22 years ago, 12-Jan-04, to lugnet.robotics)
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| | Re: HELLO?!, LEGO CO. ! was: Will the educational arm of Technic & Mindstorms continue?
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In lugnet.dear-lego, Mark Tarrabain wrote: <snip> (...) <snip> Spybotics? They are listed on a separate page from Mindstorms on the S@H website. Lots of big, expensive products with little building flexibility just sitting there on the shelves... (...) (22 years ago, 12-Jan-04, to lugnet.dear-lego, lugnet.robotics, lugnet.general, lugnet.technic)
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| | Re: HELLO?!, LEGO CO. ! was: Will the educational arm of Technic & Mindstorms continue?
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(...) Okay, then when LEGO said they would be dropping their electronics and movie tie in products, exactly what did they mean by "electronics" then? Mindstorms has been, afaik, LEGO's chief electronic product recently. We have two apparently (...) (22 years ago, 12-Jan-04, to lugnet.dear-lego, lugnet.robotics, lugnet.general, lugnet.technic)
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| | Re: HELLO?!, LEGO CO. ! was: Will the educational arm of Technic & Mindstorms continue?
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(...) Dear John, Have you seen Jake McKee's statement? "... Mindstorms is not going away, but may continue to evolve. Like all technology products, Mindstorms will continue to grow and improve as consumers gain new technology knowledge and (...) (22 years ago, 12-Jan-04, to lugnet.dear-lego, lugnet.robotics, lugnet.general, lugnet.technic)
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| | Re: External power supply ?
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(...) You are right Chris, the train controller is not a good idea. Indeed all Lego adaptors (including the one for RCX 1.0) provide AC only. And turning the knob in the wrong direction is just too easy. Thanks for correcting my misleading (...) (22 years ago, 12-Jan-04, to lugnet.robotics)
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| | Re: Vision Command XP
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Hi, There is patch available at the official LEGO MindStorms site: (URL) Blank (22 years ago, 12-Jan-04, to lugnet.robotics)
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| | Re: External power supply ?
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(...) CAUTION!!! The wall-wart that comes with the train adaptor puts out an AC voltage that will likely damage your RCX if used this way!!! I have read reports of people burning out their RCXes by connecting the wall-wart to the battery contacts (...) (22 years ago, 12-Jan-04, to lugnet.robotics)
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| | Re: HELLO?!, LEGO CO. ! was: Will the educational arm of Technic & Mindstorms continue?
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I wrote Michael Anderson (firmware guru at TLC) expressing my concerns about the future of Mindstorms based on the recent press regarding TLC's financial woes. I asked him if he could reassure me. He said, "there are some very interesting projects (...) (22 years ago, 12-Jan-04, to lugnet.dear-lego, lugnet.robotics, lugnet.general, lugnet.technic)
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| | Re: External power supply ?
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Hi Ken, (...) Maximum RCX power consumption is 1500 mA (there is a fuse inside rated 1.5A). Anything rated at least 1A should be OK. (...) They should, if they are really regulated (some cheap warts advertised as regulated are not so good...). A (...) (22 years ago, 12-Jan-04, to lugnet.robotics)
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| | Re: HELLO?!, LEGO CO. ! was: Will the educational arm of Technic & Mindstorms continue?
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(...) If TLC is trying to control costs and return to profitability, they will want to cut products that have a bad profit margin for them. This would likely include Star Wars and Harry Potter on the basis of licensing fees and specialized part (...) (22 years ago, 12-Jan-04, to lugnet.dear-lego, lugnet.robotics, lugnet.general, lugnet.technic)
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| | Re: BricxCC release 3.3.7.6
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(...) I will make this change. Thanks for the report! John Hansen (22 years ago, 12-Jan-04, to lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.legos, lugnet.robotics.rcx.nqc, lugnet.robotics.spybotics)
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| | Re: NQC's future
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(...) According to the LEGO documentation, only the normal (source 1) Timers can be used as an event source. The ‘sensors’ for which events can be generated are: · Physical sensors (Source 9, Range 0-2, Logical number 0-2) · System timers (Source 1, (...) (22 years ago, 12-Jan-04, to lugnet.robotics.rcx.nqc, lugnet.robotics.spybotics)
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| | Re: External power supply ?
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(...) Philo, I want to attempt the conversion to an external power source. I have looked at your page but I have a few questions. Please forgive me that I know next to nothing about electric power and electronics -- or so it seems. - Your regulated (...) (22 years ago, 12-Jan-04, to lugnet.robotics)
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| | Re: HELLO?!, LEGO CO. ! was: Will the educational arm of Technic & Mindstorms continue?
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let's don't make things worse than they really are if we think "the core" is brick and nothing more then we should think TLC will stop producting plates which is stupid so IMO technic is a patr of "core" the same with liftarms (studless beams) "the (...) (22 years ago, 12-Jan-04, to lugnet.dear-lego, lugnet.robotics, lugnet.general, lugnet.technic)
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| | Re: Vision Command XP
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"Marco Correia" <Marco.Correia@soporcel.pt> wrote in message news:000401c3d881$b2...rcel.pt... (...) I have mailed LEGO suport now, and just have to wait and see for the answer... (...) The focus problem can be solved, I've seen instructions and (...) (22 years ago, 11-Jan-04, to lugnet.robotics)
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