 | | Trains, DCC, and pbForth
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All, As I've mentioned before, I have a version of pbForth firmware for the RCX that allows you to control trains modified with DCC controllers. The benefit of pbForth is that you can write, test, and debug your application interactively using (...) (22 years ago, 21-Nov-03, to lugnet.trains, lugnet.robotics.rcx.pbforth)
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| | Re: Ultrasonic proximity sensor
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(...) Right. The word ultrasonic means "higher than sonic" or above the 40KHz top end of the audible range. These are sonic proximity sensors, FWIW. - Chris. (22 years ago, 21-Nov-03, to lugnet.robotics, FTX)
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| | Re: Ultrasonic proximity sensor
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(...) Many different ones, ranging from clearly audible to much more than 40kHz. Depends on what they're doing. -- -- Open Forge, LLC 24/365 Onsite Support for PCs, Networks, & Game Consoles 512-695-4126 (Austin, Tx.) help@open-forge.com (...) (22 years ago, 21-Nov-03, to lugnet.robotics)
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| | Re: Ultrasonic proximity sensor
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(...) Indeed. 24khz for audio is too low. It should be at least 40khz if it's using sound. (btw, what frequencies do bats use?) >> Mark (22 years ago, 21-Nov-03, to lugnet.robotics)
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| | Re: Are there GOTO statements in NQC?
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(...) The purpose of garbage collection is to remove resources from use when they are not going to be used anymore. It covers a variety of issues, some you've each touched on. I suggest as a start, Garbage Collection: Algorithms for automatic (...) (22 years ago, 21-Nov-03, to lugnet.robotics)
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| | Re: Are there GOTO statements in NQC?
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(...) Um, not exactly. Structured programming is about taking a high level problem, breaking it down into logically related modules (using as much reuse as possible) and then breaking those modules down as well, and so on. It's about being cognizent (...) (22 years ago, 21-Nov-03, to lugnet.robotics)
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| | Re: Are there GOTO statements in NQC?
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Don't know about C/C++, but IIRC in Java the garbage collector destroys objects not when they are out of scope, nor when their creator function exits. It destroys them when the object is no longer referenced by any threads. That is to say, if (...) (22 years ago, 21-Nov-03, to lugnet.robotics)
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| | Re: Are there GOTO statements in NQC?
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(...) I've been coding since about '81, too. Big deal. (...) Well, yes, by transforming it into a while loop with a state variable representing what would otherwise be the execution counter. While this is a provable transformation, it doesn't (...) (22 years ago, 21-Nov-03, to lugnet.robotics)
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| | Re: Are there GOTO statements in NQC?
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As a computer science software engineer i work since 1984. My university studies before (Hamburg, Germany) taught me, that science had proved: any program using a goto statement can easily be transformed into a structured program. Remember, that (...) (22 years ago, 21-Nov-03, to lugnet.robotics)
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| | Re: Are there GOTO statements in NQC?
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(...) *snicker* I'm surprised you used C as one of your example languages, then. Anyway, not all of us are so lucky as to be able to choose a language where you can hide all your cleanup code like that. As a personal issue, I find such cleanup (...) (22 years ago, 21-Nov-03, to lugnet.robotics)
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| | Re: Ultrasonic proximity sensor
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(...) back up alarms for dogcatchers and photographers... (22 years ago, 20-Nov-03, to lugnet.robotics)
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| | Re: Are there GOTO statements in NQC?
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(...) Which is why we have C++. With memory constructors and destructors, quite complex resources can be automatically and cleanly free'd up on exit from a function. ---...--- Steve Baker ---...--- HomeEmail: <sjbaker1@airmail.net> WorkEmail: (...) (22 years ago, 20-Nov-03, to lugnet.robotics)
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| | Re: Are there GOTO statements in NQC?
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Rob Limbaugh wrote: > I find that GOTO is a very handy way to bypass code to test some > alternate code in high-level languages. Nope - that's why we have #ifdef/#endif > It is also a command that is > easy to match to a machine language code of (...) (22 years ago, 20-Nov-03, to lugnet.robotics)
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| | Re: Ultrasonic proximity sensor
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(...) sorry to dissappoint you but i made that up just for a laugh. i'm glad you got a laugh out of it! Michael (22 years ago, 20-Nov-03, to lugnet.robotics)
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| | Re: Are there GOTO statements in NQC?
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(...) This exact same argument can be applied to high-level languages where you dynamically allocate memory or other resources that need to be released before leaving the function. While I agree that forcing people to have only one exit point at all (...) (22 years ago, 20-Nov-03, to lugnet.robotics)
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| | Re: Ultrasonic proximity sensor
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(...) Seriously? That's hilarious. -- -- Open Forge, LLC 24/365 Onsite Support for PCs, Networks, & Game Consoles 512-695-4126 (Austin, Tx.) help@open-forge.com irc.open-forge.com Hangar 18 Open Source Distributed Computing Using Plan 9 & Linux (...) (22 years ago, 20-Nov-03, to lugnet.robotics)
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| | RE: Are there GOTO statements in NQC?
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I find that GOTO is a very handy way to bypass code to test some alternate code in high-level languages. It is also a command that is easy to match to a machine language code of various processor types. In writing batch scripts on Windows (...) (22 years ago, 20-Nov-03, to lugnet.robotics)
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| | Re: Ultrasonic proximity sensor
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(...) The frequency at which air is best matched is about 40kHz, several things with this: - low resolution because of the low frequency - going to take more power to get a given range of detection than using a commercial grade unit (works at 40kHz) (...) (22 years ago, 20-Nov-03, to lugnet.robotics)
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| | Ultrasonic proximity sensor
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Mindsensors Has recently developed a Ultrasonic distance sensor, which uses 24 KHz ultrasonic wave for distance mesurements. If your are interested visit us at www.mindsensors.com/uspd.htm www.mindsensors.com Mindsensors Robotics (22 years ago, 20-Nov-03, to lugnet.robotics)
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| | Re: Are there GOTO statements in NQC?
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(...) The thing everyone has forgotton about the "one exit point" rule is that it applies to MACHINE CODE PROGRAMMING - not high level languages. This single misunderstanding has resulted in more convoluted and illegible code than I care to (...) (22 years ago, 20-Nov-03, to lugnet.robotics)
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| | Re: Are there GOTO statements in NQC?
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(...) Well, you'll hear people telling you: 1) Use the GOTO - it's fine. 2) Use it sparingly - it's dubious. 3) Use it only if you are totally stuck. 4) Never, ever use it - it is the work of Satan. I fall into group (4). I've been working as a (...) (22 years ago, 20-Nov-03, to lugnet.robotics)
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| | Re: Help w/install _or_ It all went so well
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(...) You should uninstall cygwin and delete its directory tree if it is left behind. Then run both installers (the brickoslejos installer second) and you should be ready to go. You don't need to do a configure or make of brickOS if you use these (...) (22 years ago, 20-Nov-03, to lugnet.robotics.rcx.legos)
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| | Re: Are there GOTO statements in NQC?
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(...) In NQC, it is necessary to be especially careful about the use of goto as Dave writes in the NQC Guide: The goto statement should be used sparingly and cautiously. In almost every case, control structures such as if, while, and switch make a (...) (22 years ago, 20-Nov-03, to lugnet.robotics)
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| | Re: Are there GOTO statements in NQC?
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(...) Ralph, I think it is a stupid rule! (...) Kevin (22 years ago, 20-Nov-03, to lugnet.robotics)
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| | RE: Are there GOTO statements in NQC?
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(...) <snipped rant> (...) And as a longtime embedded guy myself, I agree with Mark. It's the old sharp tools and dull craftsman thing. In the hands of a practiced expert, the goto can be a thing of beauty and can make the code more readable, which (...) (22 years ago, 20-Nov-03, to lugnet.robotics)
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| | Re: Are there GOTO statements in NQC?
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(...) I'd love to take up the personal challenge of eliminating your need for goto. Can you share your code with me? Email would be fine. Kevin (22 years ago, 20-Nov-03, to lugnet.robotics)
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| | Re: Are there GOTO statements in NQC?
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(...) As a general rule I do not use goto's because I don't have a need for them. I've coded so many LOC in my life that the "if then else" structure of modern language was a step up from where I started. :^) The original BASIC and FORTAN had gotos (...) (22 years ago, 20-Nov-03, to lugnet.robotics)
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| | Re: Are there GOTO statements in NQC?
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(...) I'm probably in the minority here, but I'm going to come right out and say that goto's are not a bad thing, contrary to popular belief. In fact, I find it rather pompous when I come across admonishments in textbooks that there is no valid (...) (22 years ago, 20-Nov-03, to lugnet.robotics)
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| | Re: Are there GOTO statements in NQC?
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(...) NQC has supported the goto statement since version 2.5a3 (which was released a long time ago). (...) Nope. It's already there. John Hansen (22 years ago, 20-Nov-03, to lugnet.robotics)
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| | Re: Are there GOTO statements in NQC?
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(...) Y'know, I really ought to check the latest version before saying these sorts of things. It appears that goto has actually been implemented since the last time I fiddled with NQC. Sorry for the misinformation. - Alex (22 years ago, 20-Nov-03, to lugnet.robotics)
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| | Re: Are there GOTO statements in NQC?
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(...) No, NQC does not support goto. I at one point started to add goto to the language, but abandoned the effort when I installed legOS on my brick. It's not really all that hard to add goto to the NQC language; it's a couple minor changes to the (...) (22 years ago, 20-Nov-03, to lugnet.robotics)
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| | Re: Are there GOTO statements in NQC?
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(...) Quoting from the NQC Guide: The goto statement forces a program to jump to the specified location. Statements in a program can be labeled by preceding them with an identifier and a colon. A goto statement then specifies the label which the (...) (22 years ago, 20-Nov-03, to lugnet.robotics)
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| |
| | Re: usb problem
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I tried many things, I am running RedHat 9.1 with kernel 2.4.20 and firmdl is the latest one. I used the option --tty=/dev/usb/ttyUSBx and --tty=/dev/ttyUSBx (On command line or included in the firmdl.c ) but when running the firmloader it gives and (...) (22 years ago, 20-Nov-03, to lugnet.robotics)
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| | Are there GOTO statements in NQC?
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Hello all, I REALLY need to use a goto statement in the NQC programming project I'm doing for the RCX. Dows anybody know if such a statement extsts, and if so, what the syntax is? I know gotos are bad programming practice, but its really hard to (...) (22 years ago, 20-Nov-03, to lugnet.robotics)
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| | Re: failure in communicaton between RCX & IR Tower
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well, the IR tower is fired when I tested out with different powered hubs. I used 2.0 powered hub, the same symptom occured... the OS crashed in the identical fashion. When I used 1.0 powered hub, the tower mysterably ceased to response, then the OS (...) (22 years ago, 20-Nov-03, to lugnet.robotics.rcx.robolab)
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| | Re: usb problem
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Did you set the --tty option on the command line? RK <lego-robotics@crynwr.com> wrote in message news:7130803.1069261...7.0.0.1... (...) solve this. (...) (22 years ago, 20-Nov-03, to lugnet.robotics)
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| | Re: Help w/install _or_ It all went so well
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No,I didn't know they existed. What steps should I take to use the installer in an already existing install? -Wes (...) (22 years ago, 20-Nov-03, to lugnet.robotics.rcx.legos)
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| | Re: failure in communicaton between RCX & IR Tower
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hi, all, I'm going to dig into my big cable/accessories bin to for my powered usb hub tonight. I don't have a pc-usb card though. Bob, please post if your test with the pc card work... -- thank you very much... E ===...=== (...) of (...) tower (...) (...) (22 years ago, 19-Nov-03, to lugnet.robotics.rcx.robolab)
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| | Re: failure in communicaton between RCX & IR Tower
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(...) I am having almost the same issues. I want to share my story because some of the key elements in your story match mine exactly: Computer: Toshiba Satellite/WinXP/3-USB 2.0 RCX 1.0 USB tower Software: RIS 2.0, SDK 2.5, Bricxcc (all have same (...) (22 years ago, 19-Nov-03, to lugnet.robotics.rcx.robolab)
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| | usb problem
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I cant get my usb to work with firmdl. Does anyone know what to do to solve this. Regards www.haydar.co.uk www.haydar-gokmen.co.uk web.onetel.net.uk/~hgokmen (22 years ago, 19-Nov-03, to lugnet.robotics)
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| | Re: rcx unit
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(...) Great idea :) (...) Does it mean you need 1) output for driving (main) motors 2) output for steering motor 3) 3 more free outputs? Also the RCX unit on the buggy is not "Lego friendly", meaning it is (...) Not. It's pure RC driven base - two (...) (22 years ago, 19-Nov-03, to lugnet.robotics)
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| | Re: failure in communicaton between RCX & IR Tower
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(...) This sounds identical to the situation described by Rob Hendrix in (URL) Anderson from LEGO suggested via email that the USB port may not be giving the tower sufficient current. Perhaps you could try a powered hub? John Hansen (22 years ago, 19-Nov-03, to lugnet.robotics.rcx.robolab)
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| | Re: Please help (Follow up to my earlier post)
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"Nathan Colyer" <lego-robotics@crynwr.com> wrote in message news:3.0.5.32.200311....edu.au... (...) Yes. That seems to be problematic for more people than just myself. My laptop IS a Toshiba. Its looking like Toshiba laptop's with USB 2.0 are one (...) (22 years ago, 19-Nov-03, to lugnet.robotics)
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| | Re: Please help (Follow up to my earlier post)
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Rob, Sorry, no luck from the Robolab RCX list - the user there has been unable to overcome their USB tower problems. You wouldn't happen to be using a Toshiba would you? Their problem was only occuring on a Toshiba laptop - worked fine on other (...) (22 years ago, 19-Nov-03, to lugnet.robotics)
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| | Re: failure in communicaton between RCX & IR Tower
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Hi, Nathan, I truly suspect that the issue is the Toshiba hardware of this particular laptop model. I have 3 Dell desktops, 3 laptops. They all have built in usb ports, either 2.0 or 1.0. They all work fine, with the identical setup up, even with (...) (22 years ago, 19-Nov-03, to lugnet.robotics.rcx.robolab)
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| | Re: Memory
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(...) According to Robolab documentation (Tufts) you can use the generic container to add more containers by modifying each generic container with a number string starting with number 3 continuing to 28. (0, 1, 2 are the basic colors - red, yellow, (...) (22 years ago, 19-Nov-03, to lugnet.robotics)
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| | Re: Help w/install _or_ It all went so well
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(...) Did you consider using my all-in-one pre-built installers? (URL) work well with XP & W2K (and presumably Win2003). There are problems with earlier OS versions. I've had several people tell me that using these pre-built installers was much (...) (22 years ago, 18-Nov-03, to lugnet.robotics.rcx.legos)
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| | Re: Help w/install _or_ It all went so well
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hmmmm.... Now I have a different problem - the next step in the process: $ make strip strip fontdesign.exe strip: fontdesign.exe: No such file or directory make: *** [strip] Error 1 Is there a missing step to create fontdesign.exe? (22 years ago, 18-Nov-03, to lugnet.robotics.rcx.legos)
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| | Re: Help w/install _or_ It all went so well
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Thanks. This solved the initial problem which revealed a second... genlds.c has two printf() statements that have multi-line string args. I appended '\' to the end of all these and everything compiled fine. Now to test things. -Wes (...) <snipped (...) (22 years ago, 18-Nov-03, to lugnet.robotics.rcx.legos)
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| | Re: Technic Turntables
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(...) Maybe Spectrum in Canada will ship to the UK? (URL) hurt to ask... Dave K (22 years ago, 18-Nov-03, to lugnet.robotics)
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| | Re: Please help (XP,RIS 2.0 problem)
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"Philippe Hurbain" <philohome@free.fr> wrote in message news:HoJLsv.wDM@lugnet.com... (...) host (...) Yep, I have every Windows update (except that MSN Messenger one). I am going to purchase a usb hub today and see if that will cure my problem. (...) (22 years ago, 18-Nov-03, to lugnet.robotics)
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| | Re: Please help (XP,RIS 2.0 problem) - some thoughts
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(...) Horrors! :-) (...) <snippage> (...) If, as Michael Anderson from LEGO suggested in a private email, it has anything to do with the tower not getting enough current then a powered hub might be the solution. If Bill's hub is powered he might try (...) (22 years ago, 18-Nov-03, to lugnet.robotics)
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| | Re: Please help (XP,RIS 2.0 problem)
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Hi Rob, Did you try to apply the latest XP service pack (and/or made an extensive Windows update)? The first XP release didn't work very well on some USB2 host controllers... Philo (22 years ago, 18-Nov-03, to lugnet.robotics)
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| | Re: Technic Turntables
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(...) There are (most of the time) at least one local seller on the market. They might be a tad hard to find tough since they sell to schools. (22 years ago, 18-Nov-03, to lugnet.robotics)
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| | Re: Please help (XP,RIS 2.0 problem) - some thoughts
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"Bill Blackmer" <lego-robotics@crynwr.com> wrote in message news:B0017063875@SAT...pon.net... (...) of (...) older (...) not (...) wireless (...) level. (...) Now there's a good thought. Thanks Bill! So to my next question for all you guys. Do any (...) (22 years ago, 18-Nov-03, to lugnet.robotics)
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| | Re: rcx unit
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You need a computer and either a serial or USB IR tower to download the firmware into the RCX unit before it will respond to the remote control. If all you want to do is drive the motor outputs, you don't need any programming. Also, it doesn't have (...) (22 years ago, 17-Nov-03, to lugnet.robotics)
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| | RE: Please help (XP,RIS 2.0 problem) - some thoughts
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Hello Rob, I couple of thoughts. I have a laptop that runs XP, 1.1 USB ports, RIS 2.0, and Robolab 2.53 and everything works fine. I do not use Bricxcc. I have a bigger desktop that runs XP, 2.0 USB ports, RIS 2.0 and Robolab 2.53 and everything is (...) (22 years ago, 18-Nov-03, to lugnet.robotics)
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| | Re: Please help (XP,RIS 2.0 problem)
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(...) say (...) The what? Also, I would try using NQC directly to see if it behaves any (...) Sorry John, I never got the hang of NQC. Maybe you could show me how to accomplish this feat? It sounds like a software problem (...) I assume its either a (...) (22 years ago, 18-Nov-03, to lugnet.robotics)
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| | Re: Please help (XP,RIS 2.0 problem)
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|
"Scott Davis" <lego-robotics@crynwr.com> wrote in message news:Sea2-DAV23zHWcQ...ail.com... (...) Yes I ran it. I ran it multiple times. Still having the problem now even after installing the usb drivers from SDK 2.5 and the computer is still (...) (22 years ago, 18-Nov-03, to lugnet.robotics)
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| | do-it-yourself NiMh AA cell
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Anyone here interested in manufacturing your own NiMh AA cell? Over lunch I reviewed a web trail starting from my own home page: (URL) NMH-110 I think those www.madengineer.com/...s/nimh.htm instructions say you can try for below US$2 per battery. I (...) (22 years ago, 17-Nov-03, to lugnet.robotics)
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| | Re: rcx unit
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(...) I have recieved a lot of helpful information, thank you. Let me explain what I want to do, then maybe someone will have a suggestion. I want to create a MOC of a remote controlled dump truck. The problem with using the RCX unit is that the (...) (22 years ago, 17-Nov-03, to lugnet.robotics)
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| | Attn: List Moderator
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I am telling you that the following address: lego-robotics-uc.106...net@crynwr .com is not canceling my subscription to this list. Please remove me from this list. Thankyou. (22 years ago, 17-Nov-03, to lugnet.robotics)
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| | Re: rcx unit
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(...) To be honest, I did the same research when got the RCX, with same results, but my opinion is to prepare newbies for the worst case scenario. In fact, I never lost signal when moving my robot around my room (RCX was pointing up, IR tower too, (...) (22 years ago, 17-Nov-03, to lugnet.robotics)
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| | Re: rcx unit
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(...) yes you can, there is an optic fiber in RIS box (only version 2.0). Put one extremity in front of RCX IR port and the other extremity on top of robot. This optic fiber transmit the IR light. But in my opinion the best thing is to use a RCX 1.0 (...) (22 years ago, 17-Nov-03, to lugnet.robotics)
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| | Re: rcx unit
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(...) Actually, I have found that the RCX can "see" infrared through bricks. A long time ago, I tried to cover up the RCX by building a box around it out of LEGO and was very surprised to find that I could still control it with the remote. I think (...) (22 years ago, 17-Nov-03, to lugnet.robotics)
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| | Re: rcx unit
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(...) Basically yes, but you still need to install RIS 2.0 to your computer in order to download firmware to RCX. After downloading firmware you can drive RCX via remote control unit (...) Nope, as I wrote, you have to install RIS 2.0 first (but no (...) (22 years ago, 17-Nov-03, to lugnet.robotics)
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| | Re: rcx unit
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(...) Welcome to the world of LEGO robotics! You don't need to program the RCX to use it with the MindStorms remote, but you do need to download the firmware into the RCX before it will recognize the remote commands. When you first take the RCX out (...) (22 years ago, 17-Nov-03, to lugnet.robotics, FTX)
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| | Re: rcx unit
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(...) Definitely not. The signal is transmitted via infrared signals (IR) -- the same way your TV remote communicates with the television. If you cover up the receiver, there is no way to pick up the signal. Also, remember that IR is directed... so (...) (22 years ago, 17-Nov-03, to lugnet.robotics)
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| | Re: rcx unit
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(...) The RCX has to have the firmware installed to be able to respond to the remote--out of the box (or sometimes after replacing batteries), there is no firmware installed on the RCX and you have to download it using a PC. The issue of enclosing (...) (22 years ago, 17-Nov-03, to lugnet.robotics)
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| | rcx unit
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I'm new to the RCX Lego world and robotics. Can I use the remote control unit item# 9738 with the Electric Mindstorms RCX unit item # 884 without any computer programming? Will they work together out of the box? Can the RCX unit be completely (...) (22 years ago, 17-Nov-03, to lugnet.robotics)
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| | Memory
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I'm using Robolab 2.5 and am running out of containers. I only need about 18 or so states, and I need as many as possible containers. I know in some languages like NQC you can store bits and bytes in containers when you only need a few states, but (...) (22 years ago, 17-Nov-03, to lugnet.robotics)
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| | Re: Please help (XP,RIS 2.0 problem)
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(...) I would open the Lego tower control panel applet and see what it has to say about your tower. Also, I would try using NQC directly to see if it behaves any differently with respect to the USB tower. It sounds like a software problem with the (...) (22 years ago, 17-Nov-03, to lugnet.robotics)
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| | Re: Pneumatic Quadraped 242
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(...) Thanks. I hadn't heard that yet and I have to say it is dissapointing, but totally understandable. Jona LEGO Robotics Group of Ann Arbor (URL) (22 years ago, 17-Nov-03, to lugnet.technic, lugnet.build, lugnet.robotics)
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| | Re: Please help (XP,RIS 2.0 problem)
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Did you run the ris 2.0? I think you need to do something to setup the tower by running the ris software once. Scott ----- Original Message ----- From: "Rob Hendrix" <rhendrix@cei.net> To: <lego-robotics@crynwr.com> Sent: Sunday, November 16, 2003 (...) (22 years ago, 17-Nov-03, to lugnet.robotics)
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| | Please help (XP,RIS 2.0 problem)
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I have installed RIS 2.0 on my new laptop (3 weeks old). I have also installed Bricxcc. I have not installed the Mindstorms SDK 2.0. I have 3 built in USB 2.0 ports (which also run 1.1 USB devices, duh)... Anyway, when I start Mindstorms, I get to (...) (22 years ago, 17-Nov-03, to lugnet.robotics)
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| | Re: Pneumatic Quadraped 242
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(...) Mike Thorn tells us that movies are only available on Brickshelf during low bandwidth hours. I'm working on a website that does not depend on Brickshelf to hold my movies. I hope to have that up in a week. (...) (22 years ago, 17-Nov-03, to lugnet.technic, lugnet.build, lugnet.robotics)
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| | Re: Pneumatic Quadraped 242
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Does anyone know what is going on at BrickShelf with regard to movie files? I sent email to the webmaster but haven't gotten a reply. Jona LEGO Robotics Group of Ann Arbor (URL) (22 years ago, 16-Nov-03, to lugnet.technic, lugnet.build, lugnet.robotics)
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| | Re: Remote Camera
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(...) This folder is not yet public. nanobapt (22 years ago, 16-Nov-03, to lugnet.robotics)
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| | Re: Remote Camera
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Here is the bricklink url (URL) don't know if they allow avi files on there but I have uploaded one anyway. As for this ebay category number just type in wireless camera into the search. You can normally pick them up really cheap. But they hammer (...) (22 years ago, 16-Nov-03, to lugnet.robotics)
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| | Re: Remote Camera
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"mick marriott" <mickmarriott@btinternet.com> wrote in message news:HoEDFD.Ioy@lugnet.com... (...) to the (...) lego (...) remotely. (...) receive (...) solution. (...) So when will you post pictures and more info on the brand and cat# of said (...) (22 years ago, 16-Nov-03, to lugnet.robotics)
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| | Re: Pneumatic Quadraped 242
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(...) As you wish: (URL) Quad242 walking forward. (URL) Quad242 turning left I've got two more but I'm having trouble uploading them.... I'll let you know when I get them uploaded. Kevin (22 years ago, 15-Nov-03, to lugnet.technic, lugnet.build, lugnet.robotics)
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| | Re: Technic Turntables
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(...) Not sure if the part you are looking for is here: (URL) now has the big technic turntable as part of a technic service pack for GBP 8.99 Scott Lyttle (22 years ago, 14-Nov-03, to lugnet.robotics)
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| | Re: Technic Turntables
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(...) Yes that set is great value, especially if its included in the 5/10/15% discount! Good supply of the new double bevel gears, including 36 tooth. Note that the large turntable is black base + trans clear top. ROSCO (22 years ago, 15-Nov-03, to lugnet.robotics)
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| | Remote Camera
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I have recently implemented a wireless remote camera for mindstorms. I purchased the camera unit from ebay at a cost of £13 including postage to the UK. I then built a lego casing for it and connected it's power supply to a lego electrical (...) (22 years ago, 15-Nov-03, to lugnet.robotics)
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| | Re: Technic Turntables
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(...) Don't forget the $6 for shipping. I don't think Pitsco ships outside the US... the poster is from the UK. -Rob. (22 years ago, 14-Nov-03, to lugnet.robotics)
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| | RE: Technic Turntables
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Well, that's why I started buying from pldstore.com... I had bought parts on BrickLink and eBay, and then checked out www.pldstore.com's prices.... And I have to say "duh" to me for my earlier blunder, because I bought ten of the things and you'd (...) (22 years ago, 14-Nov-03, to lugnet.robotics)
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| | Re: Technic Turntables
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(...) Hrmm... this is an eye-opener for me. I've been normally picking up spare parts via bricklink, but the _lowest_ price right now on bricklink for these things is $6.22 each, and that's overseas so the shipping would be even more expensive. (...) (22 years ago, 14-Nov-03, to lugnet.robotics)
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| | RE: Technic Turntables
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You're right. My bad..... It's $10.99 for 2... Liz (...) them (...) <lego-robotics@crynwr.com> (...) It's (...) sites (...) sale (...) convenient (...) turntables. (...) (URL) > (...) (URL) > (22 years ago, 14-Nov-03, to lugnet.robotics)
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| | RE: Technic Turntables
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Hello ALL, Actually they are 10.99 for two. (URL) Message----- From: news-gateway@lugnet.com [mailto:news-gateway...ugnet.com] On Behalf Of Liz Bilbro Sent: Friday, November 14, 2003 9:01 AM To: lugnet.robotics@lugnet.com Subject: RE: Technic (...) (22 years ago, 14-Nov-03, to lugnet.robotics)
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| | Re: Technic Turntables
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I think that they're $10.99 for 2, at least they were when I order them about a year ago. Scott ----- Original Message ----- From: "Liz Bilbro" <liz@bookwyrmz.com> To: "'GAIER ADAM'" <M339302@Richmond.ac.uk>; <lego-robotics@crynwr.com> Sent: Friday, (...) (22 years ago, 14-Nov-03, to lugnet.robotics)
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| | Bohrok Gears was: Technic Turntables
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(...) Speaking of which, has anyone managed to come up with a good use for those two oddball gear levers in a MOC? I'm referring to the two pieces with partial gears on the ends that originally came in the Bohrok Bionicles. Mark (22 years ago, 14-Nov-03, to lugnet.robotics, lugnet.technic)
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| | RE: Technic Turntables
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The easiest place to buy these is from LEGO at www.pldstore.com. It's where I get mine. They've gone up I think; they're $10.99 each. Liz (...) some (...) (22 years ago, 14-Nov-03, to lugnet.robotics)
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| | spybot studies: direction testing
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I needed to know what TargetDirection() meant at different ranges, so I did another study. Graphic results here: (URL) information post-moderation: (URL) of the methodology are in target_direction.nqc (and some in target_direction.xls). I quit after (...) (22 years ago, 14-Nov-03, to lugnet.robotics.spybotics)
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| | Re: Help w/install _or_ It all went so well
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Or ( IMO ) better yet, just macro every line between 152 and 171, that's what I did, saved the trouble of another install... Put this on each line around the assembly code: __asm__(""); Make sure you keep the indent spacing also: label: should be: (...) (22 years ago, 14-Nov-03, to lugnet.robotics.rcx.legos)
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| | Re: Technic Turntables
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(...) (URL) so expansive considering the gear collection !!! Philo (22 years ago, 14-Nov-03, to lugnet.robotics)
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| | Re: Technic Turntables
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(...) Try BrickLink. Gray turntables are here: (URL) sellers (including me!) ship internationally. I have 6 listed: (URL) Doucette. Falling Bricks (URL) (22 years ago, 14-Nov-03, to lugnet.robotics, lugnet.market.buy-sell-trade)
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| | Technic Turntables
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I've been looking for a while and have not been able to find any sites where I can buy Technic Turntables individually. I found one for sale on ebay (for $9) but I need four, and it would be much more convenient if it could be shipped to the UK. I (...) (22 years ago, 14-Nov-03, to lugnet.robotics)
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| | Re: Pneumatic Quadraped 242
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(...) I've added a total of four polarity reversers and now it can walk forward, backward, and turn right and left (within its own footprint)! The transistions from turning to walking and walking to turning involves flipping two of the polarity (...) (22 years ago, 14-Nov-03, to lugnet.technic, lugnet.build, lugnet.robotics)
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| | IR leds, was Re: Spybot studies: SetTxDirection() confusion
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... Just reading an old post and saw my mistake: of course 880 nm is closer to red (650nm) than 940nm !!! Here is the correct text I should have sent : "I think these emitters are different wavelength, 880nm for the pointing up one, 940nm for the (...) (22 years ago, 14-Nov-03, to lugnet.robotics.spybotics)
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| | Re: Pneumatic Quadraped 242
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(...) That happens with large pistons. (...) I knew you would ask :^) (...) So it doesn't tip!?! The center of mass is not always in line with the center of the footprint, so it can tip to one side or the other of the down feet diagonal. Also the (...) (22 years ago, 14-Nov-03, to lugnet.technic, lugnet.build, lugnet.robotics)
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