 | | RE: brickos 090 problem no program download with CONF_LNP_FAST
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You should scan for some old posts by either John Barnes or Philo concerning the different "IR transceiver" chips used between RCX 1.0 and 2.0 and between serial vs USB towers. As I recall: Serial tower can only transmit 38 KHz carrier. It's IR (...) (16 years ago, 30-Apr-08, to lugnet.robotics.rcx.legos)
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| | Re: brickos 090 problem no program download with CONF_LNP_FAST
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(...) Now i have success ! !) i made to directorys brickos-0.9.0_orig with //#ifdef CONF_LNP_FAST in /boot/config.h and util/dll-src/config.h and brickos-0.9.0_pat48 with #ifdef CONF_LNP_FAST in /boot/config.h and util/dll-src/config.h 2) compile (...) (16 years ago, 30-Apr-08, to lugnet.robotics.rcx.legos)
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| | Re: brickos 090 problem no program download with CONF_LNP_FAST
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Hello Jochen At first i was astonished, that somebody is answering so fast, because in the last 2 years there is not much conversation here. (...) I am not completly shure about your question concerning standart HW. I use the USB Tower and the (...) (16 years ago, 30-Apr-08, to lugnet.robotics.rcx.legos)
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| | Re: brickos 090 problem no program download with CONF_LNP_FAST
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Hello Powolny, > > I build allready a bluetooth connection between the pc and the rcx . The > bluetooth module (BTM-222) supports the spp serial protocoll only for 4800 or > higher baudrates. But it is cheap in comparsion to other ones. Costs about (...) (16 years ago, 29-Apr-08, to lugnet.robotics.rcx.legos)
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| | brickos 090 problem no program download with CONF_LNP_FAST
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Hi I build allready a bluetooth connection between the pc and the rcx . The bluetooth module (BTM-222) supports the spp serial protocoll only for 4800 or higher baudrates. But it is cheap in comparsion to other ones. Costs about 14 Euros. Look here (...) (16 years ago, 29-Apr-08, to lugnet.robotics.rcx.legos)
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| | Re: robolabatceeo/college/tutorials Is not working
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(...) (URL) all the information that the missing link had and more. (16 years ago, 28-Apr-08, to lugnet.robotics.rcx.robolab)
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| | Re: Camera Error
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In lugnet.robotics.rcx.robolab, Tom Lohre wrote: The error from within RoboLab is “OLogitech QuickCam Web-WDM ; Problem (...) I solved the problem by migrating to LabView. I look forward to learning how to send programs to the RCX via LabView. (16 years ago, 28-Apr-08, to lugnet.robotics.rcx.robolab)
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| | Re: Camera Error
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(...) The error from within RoboLab is “OLogitech QuickCam Web-WDM ; Problem connecting Video Output to Video Renderer.” (16 years ago, 28-Apr-08, to lugnet.robotics.rcx.robolab)
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| | Camera Error
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I am working on a program that uses RoboLab 2.9 with the camera. When I open the Vision Center I get an image but when I run my program I get no image just black then a speckled image. I tried running my program with Vision Center running and got (...) (16 years ago, 28-Apr-08, to lugnet.robotics.rcx.robolab)
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| | Re: Trains, DCC, and pbForth
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I realize this thread is kinda old but ...does anyone know if Chris Phillips ever made his TrainLab software available? I have tried a few times to contact Chris without any success. I have been looking into automating my train layouts and would (...) (16 years ago, 11-Apr-08, to lugnet.trains, lugnet.robotics.rcx.pbforth, FTX)
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| | Re: advice on what Mindstorms book(s) I should consider buying
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(...) This is my preferred RCX book too! Philo (16 years ago, 28-Mar-08, to lugnet.robotics.rcx)
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| | Re: advice on what Mindstorms book(s) I should consider buying
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My son really liked the book "Building Robots with Lego Mindstorms" by Ferrari, Ferrari, and Hempel, because it teaches design principles, rather than just giving step-by-step instructions. (16 years ago, 27-Mar-08, to lugnet.robotics.rcx)
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| | Re: advice on what Mindstorms book(s) I should consider buying
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(...) Hi Jonathan, If you're looking for a great introduction to RIS 2.0 and would like some building instructions, I recommend "Definitive Guide to LEGO MINDSTORMS, Second Edition" by Dave Baum. If you're looking for tons of interesting ides but (...) (16 years ago, 27-Mar-08, to lugnet.robotics.rcx)
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| | advice on what Mindstorms book(s) I should consider buying
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I own a RIS 2.0 and an Ultimate Accessory Kit (with the remote control) along with a large collection of technic (such as 8448, 8466, 8431 and more) and would like recommendations from people here as to books that would be good to buy to expand my (...) (16 years ago, 27-Mar-08, to lugnet.robotics.rcx)
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| | FW: light active mode vs inactive mode
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I am attempting to turn the reflective light on and off periodically. It works fine in RobotC. However, in Robolab, once it is turned off (via the robolab light sensor initialization - set the light on to "false"), it won't turn on again during (...) (16 years ago, 18-Mar-08, to lugnet.robotics.rcx.robolab)
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| | Re: BricxCC-brickOS (bash) interoperability problems
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(...) That is how BricxCC executes the command. I have already implemented the fix and it will be in the next BricxCC test release and, subsequently, in the next BricxCC official release. John Hansen (16 years ago, 20-Feb-08, to lugnet.robotics.rcx)
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| | Re: BricxCC-brickOS (bash) interoperability problems
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(...) Yes, I have verified that removing the end of line char in the command line, the old bash is also working normaly. To test that I am executing the following in a windows command terminal: D:>bash file.cmd I am not sure if BricxCC is executing (...) (16 years ago, 20-Feb-08, to lugnet.robotics.rcx)
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| | LDCC control from PC
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Hello people, I got a bit tired of compiling and uploading programs to a second RCX every time I need to make a small change (ok, adding the possibility to do adjustments with the remote control helps a bit), so I decided to make a win-program that (...) (16 years ago, 19-Feb-08, to lugnet.trains, lugnet.robotics.rcx, FTX)
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| | Re: BricxCC-brickOS (bash) interoperability problems
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(...) Thank you very much for investigating this problem. I looked into it a while back and was very puzzled as to why it no longer worked after I upgraded my cygwin install. If I delete the EOL at the end of the command line it will work? (...) I (...) (16 years ago, 19-Feb-08, to lugnet.robotics.rcx)
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| | BricxCC-brickOS (bash) interoperability problems
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Hi all. I am using BicxCC versión 3.3.7.17 with my RCX and brickOS. Recently I have updated my cygwin versión and now I am experiencing problems: I got the following general error trying to compile: "Compile Failed Unknown GNU error code (-1)" After (...) (16 years ago, 17-Feb-08, to lugnet.robotics.rcx)
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| | BricxCC Scripting
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BricxCC now has preliminary but fully functional support for compiling and executing PC-based scripts to control your programmable brick (NXT, RCX, Spybot, whatever). These scripts can be edited in BricxCC with syntax highlighting and (coming soon) (...) (16 years ago, 12-Feb-08, to lugnet.robotics, lugnet.robotics.nxt, lugnet.robotics.rcx)
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| | Re: WiiMote controlled shipyard crane
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Nice idea. I wonder if it is possible to make the Wiimote talk directly to the NXT over Bluetooth... (16 years ago, 28-Jan-08, to lugnet.robotics.rcx)
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| | WiiMote controlled shipyard crane
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Recently, I've bought WiiMote (Nintendo Wii Controller), which can be tethered to a regular PC via Bluetooth. You can then use for example this library - (URL) - to read WiiMote buttons, IR and accelerometer data. I've combined this with a simple (...) (16 years ago, 27-Jan-08, to lugnet.robotics.rcx)
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| | Re: Want to Buy a RCX USB IR-Tower
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(...) Just buy a USB to Serial adaptor and use your Serial Tower if you can't find a USB Tower for sale anywhere. They're not very expensive and work fine. Many new desktop PC's done have serial ports these days. Dom (16 years ago, 23-Jan-08, to lugnet.robotics.rcx.legos)
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| | Re: Want to Buy a RCX USB IR-Tower
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(...) If your IR tower still functions, and it's just a matter of not having a serial port, the simplest solution would be to just buy an adapter that will allow you to hook up a serial device to a USB port. I don't know if Radio Shack will deliver (...) (16 years ago, 23-Jan-08, to lugnet.robotics.rcx.legos)
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| | Want to Buy a RCX USB IR-Tower
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Guys, Just retrieved my (dusted) RCX kit & a few spybots, when I move things around, unfortunately, my notebook does not have serial port any more. Moreover, the CD does not support XP either. Do you aware if any online shop will sell RCX USB (...) (16 years ago, 22-Jan-08, to lugnet.robotics.rcx.legos)
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| | Re: robolabatceeo/college/tutorials Is not working
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(...) I have contacted Tuffs via e-mail. I will be calling them soon. Thanks for your guidance. Tom (16 years ago, 24-Dec-07, to lugnet.robotics.rcx.robolab)
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| | Re: RIS 2.0 software
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(...) Hi Richard, The first step you should take is to run the Program Compatibility Wizard in Windows XP. You can run this program by selecting the Start button, choose All Programs, Accessories, and then Program Compatibility Wizard. If you follow (...) (16 years ago, 21-Dec-07, to lugnet.robotics.rcx)
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| | RIS 2.0 software
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I just gave my 12 year old daughter a RIS 1.0 (yep, an original one with the 1.0 RCX) set for her birthday. Unfortunately, it looks like the software supplied with the set doesn't seem to work with XP (it seems to install, but doesn't want to run). (...) (17 years ago, 16-Dec-07, to lugnet.robotics.rcx)
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| | Re: MacNQC on Intel anyone?
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Sorry I have to bring this up again, I think it would be nice to actually have a universal binary version of MacNQC around. Does anybody know somebody who could help with achieving this? I currently have two Intel-based Macs around (plus two old G3, (...) (17 years ago, 18-Dec-07, to lugnet.robotics.rcx.nqc)
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| | 2.9.4.
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By the way, the 2.9.4 patch has a bug which fails to get the feedback from the Ultrasonic sensor. Any suggestion? --Elizabeth (17 years ago, 18-Dec-07, to lugnet.robotics.rcx.robolab)
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| | Re: robolabatceeo/college/tutorials Is not working
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(...) It would appear that they should be able to tell you whether the content will be back online eventually. Apparently it's just a separate machine in their pool that may be temporarily offline. Since the site is still actively linked to, my (...) (17 years ago, 17-Dec-07, to lugnet.robotics.rcx.robolab)
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| | robolabatceeo/college/tutorials Is not working
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(URL) not working. This is the go to place for VisionCamera. Being a classic example of deferred content, I was never able to copy it. I need this badly. May someone suggest an alternative? (URL) (17 years ago, 12-Dec-07, to lugnet.robotics.rcx.robolab)
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| | Re: RoboLab
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(...) Dear Elizabeth, Thank you for your support. I have purchased 2.9.4 and look forward to using LabView Student Version, if NI lets me have it, with the patch NI offers to run the RCX & NXT. My work with the Lego camera is developing on two (...) (17 years ago, 11-Dec-07, to lugnet.robotics.rcx.robolab)
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| | Re: Solved Virtual Memory problem! (was: I can't get the RCX 1.5 software to run on WinXP)
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(...) Might be a 16bit/32bit problem (or similar 24/32bit), precisely 1GB (coded on 32 bits) could return 0 when truncated to 16 or 24 bits by old software. 3000MB truncated to 16 or 24 bits might be OK. Philo (17 years ago, 10-Dec-07, to lugnet.robotics.rcx)
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| | Solved Virtual Memory problem! (was: I can't get the RCX 1.5 software to run on WinXP)
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Okay, I got it working. Here's the short version of the problem: I installed the RCX 1.5 software on a WinXP machine with 1GB of memory. The installation went fine. When I tried to run the program, it beeped and hung with a blanked screen. After (...) (17 years ago, 9-Dec-07, to lugnet.robotics.rcx)
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| | Re: I can't get the RCX 1.5 software to run on WinXP
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(...) I've got some more info, but it doesn't seem to help. Searching on "Director Player" and "Virtual Memory" turns up tons of hits on other software, totally unrelated to the RCX. But in every case, the listed workaround is the same- increase (...) (17 years ago, 4-Dec-07, to lugnet.robotics.rcx)
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| | I can't get the RCX 1.5 software to run on WinXP
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Help! I installed the RCX 1.5 software on my WinXP machine. I got no errors during setup, but when I tried to run it I got an error saying it needs 3MB of virtual memory. Running with Win95 compatability settings didn't help. I looked around on the (...) (17 years ago, 3-Dec-07, to lugnet.robotics.rcx)
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| | RE: RoboLab
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Tom. I just read your website. Very Interesting work Just my 2 cents. I'm sure there are more input from the guru out there though. --Elizabeth -----Original Message----- From: news-gateway@lugnet.com [mailto:news-gateway...ugnet.com] On Behalf Of (...) (17 years ago, 25-Nov-07, to lugnet.robotics.rcx.robolab)
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| | RE: RoboLab
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[--] "...Are you suggesting I purchase ROBOLABT 2.9 upgrade from my RoboLab 2.5.4B? Tom, but you must be aware of the risk of using an obsolete product. Honestly though, 2.9.4 is SO solid for most of the rather sophisticated algorithms already for (...) (17 years ago, 25-Nov-07, to lugnet.robotics.rcx.robolab)
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| | Re: RoboLab
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(...) Thank you Elizabeth, I am moving towards using LabView with a patch to allow me to run my RCX robot. I am concentrating on RoboLab 2.5.4B and the RCX. (URL) I have a few questions: Are you suggesting I purchase ROBOLAB™ 2.9 upgrade from my (...) (17 years ago, 25-Nov-07, to lugnet.robotics.rcx.robolab)
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| | RE: RoboLab
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You need purchase a copy from legoeducation.com, then download the latest 2.9.4 patch from legoengineering.com (unless legoeducation has already had the patch from their website). The 2.9.X is a gigantic improvement from 2.5. I still do not agree (...) (17 years ago, 20-Nov-07, to lugnet.robotics.rcx.robolab)
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| | RoboLab
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Is anyone looking at these posts? I think I am out of the loop. (URL) seems to be the place to go. Where does one go for fascinating RoboLab programing? (17 years ago, 20-Nov-07, to lugnet.robotics.rcx.robolab)
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| | Re: the LEGO CNC-Machine
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(...) i will drive the spindle motor using a 9v adaptor, like the ones i use for my rcx and scout ( (URL) ), so i won't run out of juice. (17 years ago, 6-Sep-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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"daniel" <daniel.formatc.at.gmail.com> wrote in message news:Jnww91.2oG@lugnet.com... (...) What will drive those big motors? (17 years ago, 6-Sep-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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I>> (...) i have the design in my head, i just need three power motors and another rcx :) (17 years ago, 5-Sep-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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"Bob Fay" <rgfay@earthlink.net> wrote in message news:Jnv1B9.4zC@lugnet.com... (...) Daniel, I posted one of my unknown machines to youtube. This one would not cut any material. The movie is very bad as I did not have a digital camera at that time. (...) (17 years ago, 5-Sep-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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"daniel" <daniel.formatc.at.gmail.com> wrote in message news:Jnuwon.JGG@lugnet.com... (...) Glad to hear that! Of course, I am somewhat disappointed. I thought you would come up with some really awesome design. (...) solution. Feed rate vs chip (...) (17 years ago, 4-Sep-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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(...) no no, i will only use the indirect control for the main spindle, which will use the power motor. the axis drives will use normal technic motors (from the mindstorms set). right now i'm designing some cutters, see my other thread in the (...) (17 years ago, 4-Sep-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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"daniel" <daniel.formatc.at.gmail.com> wrote in message news:JnuoJz.86D@lugnet.com... (...) I am trying to see this in my head. Your driving a polarity switch with a motor and the switch will control the power motor? Is this on each axis? I am (...) (17 years ago, 4-Sep-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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(...) right, that's why i'm planning to have one rcx output drive a polarity switch that connects the power motor to a normal battery box / 9v adaptor without current limiter. (17 years ago, 4-Sep-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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"daniel" <daniel.formatc.at.gmail.com> wrote in message news:Jnu7yv.K26@lugnet.com... (...) current than the RCX can supply. The smaller geared motors have a much slower rpm at their output. (17 years ago, 4-Sep-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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the motor in the movie is called a "power motor", you can read about it here: (URL) the large black one with red axleholes. i'll be using it as the spindle. i guess the gearing in my axes is still too fast for the cutter, if i have to redesign the (...) (17 years ago, 4-Sep-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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"Bob Fay" <rgfay@earthlink.net> wrote in message news:Jnt8MF.n84@lugnet.com... (...) This is one of mine. Note the left worm is out if sequence by 1/4 turn with the other two. this is putting pressure on the dual racks to remove the backlash. (URL) (...) (17 years ago, 3-Sep-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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"daniel" <daniel.formatc.at.gmail.com> wrote in message news:Jnt54J.Jpy@lugnet.com... (...) I liked the technic beams because I could lock them together. I imagine double wide bricks can make a good foundation. Put an ocassional beam in to allow (...) (17 years ago, 3-Sep-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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(...) thanks! it's nice to get that kind of feedback from someone who's not new to lego mills :) (...) yes. you can see it in my diagrams again, the cutter hangs over the table pretty far: (URL) i'm not sure yet how exactly i will manage to make it (...) (17 years ago, 3-Sep-07, to lugnet.robotics.rcx, FTX)
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| | Re: the LEGO CNC-Machine
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"daniel" <daniel.formatc.at.gmail.com> wrote in message news:Jnszy4.7qA@lugnet.com... (...) very well done. Your slider design is also very good. The table is supported in all directions. You have made it simple and effective. Good engineering! (...) (17 years ago, 3-Sep-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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i uploaded a little video of the first tests with the x and y axes. check it out here: (URL) trying out wax and soap as cutting materials, i'll report again when i'Ve tested some more :) (17 years ago, 3-Sep-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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"daniel" <daniel.formatc.at.gmail.com> wrote in message news:Jnqvwx.p6G@lugnet.com... (...) Right! Program = x+1.005, Y-2.000, F36 (hope it makes it) i have two (...) I had forgotten that you can use a Lego Fiber Optic unit for a rotation sensor. 8 (...) (17 years ago, 2-Sep-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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(...) by loaded, you mean it carries the workpiece and not the tool? (...) ooh i see now, so that's the anti-backlash gearbox!! awesome, i would never have thought of that. but i don't know if i will be able to integrate that mechanism into my (...) (17 years ago, 2-Sep-07, to lugnet.robotics.rcx)
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| | Re: I played with fire...
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Well, Philo did it again, Hourrah for him... I bypassed the fuse and the RCX came back to life. Now, will I be carefull enough with my RCX without a fuse or should I replace it ? (17 years ago, 2-Sep-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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"daniel" <daniel.formatc.at.gmail.com> wrote in message news:Jnp0Cy.2CJ@lugnet.com... (...) This X axis gear box is loaded so there is no backlash. The 16T gear on the right side has a hole through it and is fixed to the shaft with a serrated half (...) (17 years ago, 1-Sep-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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(...) 16t gear to the gear rack on the bottom of the table. also, the z axis seems to use an idler gear. that's exactly the setup i've built, you can see it here: (URL) top left, next to the tool changer idea (right next to the tiny word "tool"). i (...) (17 years ago, 1-Sep-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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"daniel" <daniel.formatc.at.gmail.com> wrote in message news:JnMwFu.CMs@lugnet.com... (...) I like the worm for a drive. It provides the best ratio and the least backlash. It also acts as a brake while the slide is under the pressure returned by (...) (17 years ago, 31-Aug-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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ok, now i understand what you mean. the problem is that this setup could be difficult for long axes, i guess the axle with the worm gears would flex too much... (...) exactly what i was thinking. that's the way the machines i've seen change their (...) (17 years ago, 31-Aug-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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"daniel" <daniel.formatc.at.gmail.com> wrote in message news:JnL3ox.7r9@lugnet.com... (...) As you can see, I do not know how to get "deep links" on Brick Shelf. If I figure it out I will post the links again. The tools can ride a disk in front of (...) (17 years ago, 30-Aug-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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"daniel" <daniel.formatc.at.gmail.com> wrote in message news:JnL3ox.7r9@lugnet.com... (...) (URL) Hope I did this right. Bob (17 years ago, 30-Aug-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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(...) indeed, i agree! (...) i can't quite picture what you mean. could you upload a drawing or something? the animation you sent is good, actually the up/down movement it makes could be the z-axis itself, saving me another motor (not the tool (...) (17 years ago, 30-Aug-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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"Bob Fay" <rgfay@earthlink.net> wrote in message news:JnKABC.F5v@lugnet.com... (...) I was successful reaching your page. It answers my questions about configuration. I am sure you will agree with me that Lego should have made a rack gear that (...) (17 years ago, 30-Aug-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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"daniel" <daniel.formatc.at.gmail.com> wrote in message news:JnJLtv.G5y@lugnet.com... (...) That should be possible. I am thinking of parafin (sp?). That is a lot different. Worth a try. (...) Not able to recycle. Might even cause global warming. (...) (17 years ago, 30-Aug-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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(...) heh i guess i'll go get a candle tomorrow to test this. but that certainly is bad news. but on the other hand, there are harder and softer variants of wax? (or so i've heard) (...) cool thought. but this will make a huge mess... and it's not (...) (17 years ago, 29-Aug-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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"daniel" <daniel.formatc.at.gmail.com> wrote in message news:JnJ1C5.KxF@lugnet.com... (...) Keep in mind that vibration is a major problem when you actually attempt to cut any material. Also, the cutter wants to be drawn into the material as the (...) (17 years ago, 29-Aug-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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(...) yes, i haven't quite figured out how to make the tools exchangeable, especialy by a machine. (manually wouldn't be a problem) one possibility would be to slowly turn the spindle while the tool is being inserted so it finds the axlehole more (...) (17 years ago, 29-Aug-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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"daniel" <daniel.formatc.at.gmail.com> wrote in message news:JnI1G4.GAx@lugnet.com... (...) Tool changers are usually very troublesome on a real machine. You will have to do some fancy engineering to get the proper tool that your material will (...) (17 years ago, 29-Aug-07, to lugnet.robotics.rcx)
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| | Re: I played with fire...
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(...) Here is the backside : (URL) (17 years ago, 28-Aug-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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wooooow you're the guy that built all those milling machines? and the lathe? first of all, respect! i loved the toast milling :D of course i checked out your site, it's pretty inspiring but i'm thinking of making some additions to the machine (...) (17 years ago, 28-Aug-07, to lugnet.robotics.rcx)
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| | Re: the LEGO CNC-Machine
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"daniel" <daniel.formatc.at.gmail.com> wrote in message news:JnHosE.AJ6@lugnet.com... (...) Looks like your plan will provide a complete package. You are welcome to any ideas on my site. This is a real challenge. Bob Fay (17 years ago, 28-Aug-07, to lugnet.robotics.rcx)
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| | the LEGO CNC-Machine
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hey! first post on lugnet, i hope it won't be the last! anyways, i just wanted to share my new creation with you, the LEGO CNC-MACHINE. to avoid confusions, this is not a finished project, i'm starting to build it and will keep posting updates on my (...) (17 years ago, 28-Aug-07, to lugnet.robotics.rcx)
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| | New RCX 2.0 version
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The photo posted by Patrick Bégin ((URL) a new version of the RCX 2.0 board, with several interesting characteristics... - The board was completely redesigned, here is the photo of the new version posted by Patrick: (URL) older version looked like (...) (17 years ago, 27-Aug-07, to lugnet.robotics.rcx)
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| | Re: I played with fire...
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(...) Hello Patrick, Your RCX2 version is completely new to me - That't very interesting... more on that later (btw, would you have a photo of the other side of the board?). The component you show as burnt is most probably a power diode, as (...) (17 years ago, 27-Aug-07, to lugnet.robotics.rcx)
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| | RE: I played with fire...
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(...) My mistake. The RCX 1.0 has an AC adaptor jack which has a full-wave bridge rectifier to convert to DC and would provide AC protection. I guess RCX 2.0, without the external jack, does not have this. (17 years ago, 26-Aug-07, to lugnet.robotics.rcx)
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| | Re: I played with fire...
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(...) I applied 9V AC power to the internal + - battery connectors. (17 years ago, 26-Aug-07, to lugnet.robotics.rcx)
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| | RE: I played with fire...
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(...) While your RCX is fried, it is probably not from plugging AC power into the power plug. LEGO's low voltage adaptor is an AC adaptor. Or did you mean you applied AC power to the RCX sensor port? (17 years ago, 26-Aug-07, to lugnet.robotics.rcx)
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| | Re: I played with fire...
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Hi Patrick, (...) that looks like a somewhat large diode to me. In my own picture it is round and is marked with a diode symbol and "A2". (...) It shouldn't he hard to replace. But I doubt that it is the only thing that is damaged. It looks like it (...) (17 years ago, 26-Aug-07, to lugnet.robotics.rcx)
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| | I played with fire...
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I applied 9V AC power to a RCX 2.0... yes yes, DC is required. Does anybody successfully repaired such a disaster ? Here are pictures pointing to what I think burned out. What is that component ? Anybody successfully replaced it ? (URL) have (...) (17 years ago, 24-Aug-07, to lugnet.robotics.rcx)
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| | Re: Possible bug? Simple light sensor condition checking.
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(...) It looks to me like the c compiler optimized the assignment to the variable away, since there is no external method call (shutdown_requested() is just a macro). (...) You should make this volatile int offonpad = 0; (...) You should also put an (...) (17 years ago, 16-Jul-07, to lugnet.robotics.rcx.legos)
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| | Re: Possible bug? Simple light sensor condition checking.
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I use BrickOS (LegOS) but I'm not expert in the inner workings. The code you have here appears fine to me. So, it may be a bug in BrickOS, or a problem elsewhere in your code. I will say I've ran into some interesting things when using tasks. (...) (17 years ago, 16-Jul-07, to lugnet.robotics.rcx.legos)
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| | Possible bug? Simple light sensor condition checking.
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I tried my own skill on writing a program for the included lego test pad (RIS 2.0), and I discovered something weird. The following code does set the conditions right, but the following code doesn't set the conditions right if I comment out the (...) (17 years ago, 16-Jul-07, to lugnet.robotics.rcx.legos)
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| | Re: Sign of center pin on power adaptor
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(...) You must be dealing with a different release of the battery pack than I am, since the only portion of the US instructions that mentions numbers states the output of the battery pack (10VAC, 7VA) and the approximate charge time (4 hours). There (...) (17 years ago, 12-Jul-07, to lugnet.robotics.rcx)
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| | Re: problem with the RCX
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"Brian Davis" <brdavis@iusb.edu> wrote in message news:JL1oK5.K84@lugnet.com... (...) This might help! (URL) (...) (17 years ago, 12-Jul-07, to lugnet.robotics.rcx)
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| | Re: problem with the RCX
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(...) Is the RCX still working? Does it "get hot" when it's running an unloaded motor? I would have thought that the 500 mA limit within the RCX case would prevent this, but perhaps it's marginal for some plastic piece "nearby". If the RCX is dead, (...) (17 years ago, 12-Jul-07, to lugnet.robotics.rcx)
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| | problem with the RCX
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One of my students accidently left a tied up gear train running for a while, i.e. In the midst of running a RCX, the case not only gets very hot, but also has a very strong plastic burning smell. At first I thought it is due to the stuck gear train, (...) (17 years ago, 11-Jul-07, to lugnet.robotics.rcx)
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| | Re: Sign of center pin on power adaptor
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(...) I agree. (...) The spec on the train AC adapter exactly matches the spec in the Li-Ion battery pack instructions. Jürgen (17 years ago, 11-Jul-07, to lugnet.robotics.rcx)
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| | Re: Sign of center pin on power adaptor
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(...) Whoops, I missed that there was a third option. I concur with this, as it's both the right voltage and confirmed AC. The mA rating, BTW, is a capacity rating, so it will work for anything that draws 800mA or less. The NXT adapter is rated for (...) (17 years ago, 11-Jul-07, to lugnet.robotics.rcx)
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| | Re: Sign of center pin on power adaptor
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(...) All my train PSUs are 10V AC, but are rectified and regulated to a nice 9V internally. (17 years ago, 11-Jul-07, to lugnet.robotics.rcx)
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| | Re: Sign of center pin on power adaptor
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Usually AC will either say AC or have a ~ symbol. DC will either say DC or have a symbol that looks like = or _-_ -Rob A> (...) (17 years ago, 10-Jul-07, to lugnet.robotics.rcx)
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| | Re: Sign of center pin on power adaptor
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(...) The AT&T 9v AC 800mA supply sounds just about right. (17 years ago, 10-Jul-07, to lugnet.robotics.rcx)
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| | Re: Sign of center pin on power adaptor
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(...) _ALWAYS_ assume DC on an actual power adapter (at least in the US). Most AC devices will just use a simple cord, like you'd find on a portable stereo. A handful of devices will need AC power in a non-standard voltage and will use DC-like power (...) (17 years ago, 10-Jul-07, to lugnet.robotics.rcx)
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| | Re: Sign of center pin on power adaptor
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(...) The one used for the RCX may be, but the NXT power supply is sold as a different item, and is listed as a 10VAC adapter vs. the 9VAC adapters used by trains and various other systems. Not that it matters unless you also buy the Li-Ion battery (...) (17 years ago, 10-Jul-07, to lugnet.robotics.rcx)
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| | Re: Sign of center pin on power adaptor
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(...) I now have a Dynamic Instruments 16VAC 375mA, AT&T AC 9V 800mA, and a Black & Decker 9V 200mA from a Dust Buster but it does not say if it is DC or AC, I am assuming AC. Which one should I use? I am hoping the AT&T but the 800mA makes me a (...) (17 years ago, 10-Jul-07, to lugnet.robotics.rcx)
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