 | | Re: Should I lubricate my Lego motor?
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(...) Both. Likely due to bad design and/or manufacture. Someone at TLC is supposed to be looking into it. But I do not know what is the outcome. C S Soh (18 years ago, 25-Jan-06, to lugnet.robotics.rcx.legos, lugnet.technic)
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| | Re: Should I lubricate my Lego motor?
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(...) Is this triggered by time or by usage? (i.e. will a motor that is run more wear out faster?) (18 years ago, 24-Jan-06, to lugnet.robotics.rcx.legos)
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| | Re: Should I lubricate my Lego motor?
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(...) You may want to check if your motors are the new type 9V geared motor (#43362). If so, please be aware it is prone to failure, the first sign being sticking. Pl see my previous post on this ailment: (URL) amount of lubrication is going to (...) (18 years ago, 24-Jan-06, to lugnet.robotics.rcx.legos)
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| | Should I lubricate my Lego motor?
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My robot is having a hard time getting around and I think that it's because the motors seem to be sticking. Even on my linoleum floor, my little tank robot often gets stuck and goes in slow circles, because one motor gets stuck. Once I nudge it or (...) (18 years ago, 24-Jan-06, to lugnet.robotics.rcx.legos)
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| | Re: LNPd with USB Tower - success?
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(...) I've never used LNPd, but since it's old enough to have "legOS" as its first letter, then it must support the serial IR tower. If no one else has info for you, you might consider buying one. Pitsco sells it new for $31.00: (URL) can get them (...) (18 years ago, 10-Jan-06, to lugnet.robotics.rcx.legos)
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| | Re: HOWTO: Building and installing brickOS tools on Mac OS X with USB IR tower
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(...) As I said to Marc in a private email (I have trouble posting to lugnet, not being a member and all), I hacked "dll" so that it works on Mac OS X 10.4 with the USB tower, using the USB code from lejos. (URL) that helps. cheers peter (18 years ago, 10-Jan-06, to lugnet.robotics.rcx.legos)
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| | Re: HOWTO: Building and installing brickOS tools on Mac OS X with USB IR tower
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(...) Perhaps one of the brickOS folks wants to work with me to turn this into a HOWTO that can go on the brickOS site? I also could take a stab at modifying the "dll" program to support USB on the Mac. If any folks from brickOS are interested, (...) (18 years ago, 9-Jan-06, to lugnet.robotics.rcx.legos)
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| | LNPd with USB Tower - success?
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Hi, I'm new here. My name is Pierluigi and I am a student at the Turin Polytechnic ((URL) ). I've used BrickOS with LNPd for a summer project, and I've recently bought the Robotics Invention System 2.0, that comes with a USB IR Tower. This tower (...) (18 years ago, 9-Jan-06, to lugnet.robotics.rcx.legos)
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| | communication between NXT and RCX!?
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Since the NXT does not have IR capability, it will not be communicate with the RCX brick. If there is no such plan from LEGO to build in the new NXT such capability, I am afraid they are going to put RCX brick in an obsolete track!? O, no! ---...--- (...) (18 years ago, 9-Jan-06, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.legos)
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| | Re: HOWTO: Building and installing brickOS tools on Mac OS X with USB IR tower
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(...) Thank you! It will be. Intallation is one reason I've never moved into BrickOS (despite some people urging me to) on the Mac. (18 years ago, 8-Jan-06, to lugnet.robotics.rcx.legos)
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| | HOWTO: Building and installing brickOS tools on Mac OS X with USB IR tower
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Hi all, I just finished compiling and installing a cross-compiler and brickOS to my RCX from my PowerBook with Mac OS X Tiger 10.4.3 and a USB IR tower. Here's a blog posting about my experience: (URL) that I was able to install brickOS to my RCX (...) (18 years ago, 8-Jan-06, to lugnet.robotics.rcx.legos)
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| | Controlling RoboSapien & family from RCX
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Hi, It appears to be straight-forward to control the WowWee robots from RCX and generate their IR commands by controlling the TxD output pin of the RCX's processor. More info, small webcam video, and simple example source: (URL) opens up for a lot (...) (18 years ago, 7-Jan-06, to lugnet.robotics.rcx.legos)
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| | The NXT generation version
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from the lego press release... ...The heart of the new system is the NXT brick, an autonomous 32-bit LEGO microprocessor that can be programmed using a PC, or for the first time in the retail offering, a Mac. After building their robots, users (...) (18 years ago, 5-Jan-06, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.legos)
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| | The NXT generation version
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Approved: emabrey@storming-robots.com from the lego press release... ...The heart of the new system is the NXT brick, an autonomous 32-bit LEGO microprocessor that can be programmed using a PC, or for the first time in the retail offering, a Mac. (...) (18 years ago, 5-Jan-06, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.legos)
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| | the new MINDSTORMS NXT
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Hi everyone, Wonder if anyone knows much about the NXT. Exciting addition, but I am concerned with the software compatibility with the future Robolab 3.0. From what I understand, beta Robolab 3.0 only is underway for Mac platform. How about the (...) (18 years ago, 5-Jan-06, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx.robolab)
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| | Re: earlier version of binutils?
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(...) Hi again, I've got it working now, thanks to help from Jochen Hoenicke and Peter Gammie. I've posted my notes on the process here, if anyone is interested: (URL) now I've got a new problem... Everything was working great for about a day, but (...) (18 years ago, 31-Dec-05, to lugnet.robotics.rcx.legos)
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| | Re: train precision
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(...) Yes, I used the same code for controlling Legway as the Great Ball Contraption train. That's what I posted here: (URL) (18 years ago, 29-Dec-05, to lugnet.robotics.rcx.legos)
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| | Re: train precision
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(...) didn't find the c code in the url you mentioned. You used the same technique in the train, as in the legway? daniel (18 years ago, 29-Dec-05, to lugnet.robotics.rcx.legos)
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| | Re: train precision
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(...) thanks for the suggestion, Brian I want to make some experimences with LDCC some day. But not in this project. daniel (18 years ago, 29-Dec-05, to lugnet.robotics.rcx.legos)
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| | Re: train precision
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(...) ... (...) ... (...) ... (...) As Brian said, it's not the motors, it's the RCX. You can run Technic motors off a train controller, and you can vary the speed. But you need to do a bit more if you're using the RCX. We used that scheme when we (...) (18 years ago, 29-Dec-05, to lugnet.robotics.rcx.legos)
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| | Re: train precision
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I do think Steve is on the right track here. The train regulator varies the voltage, but the RCX output can't. So you are left with managing (nominally) 9v pulses. But there is another solution. You could add a DCC decoder to your train motor, and (...) (18 years ago, 29-Dec-05, to lugnet.robotics.rcx.legos)
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| | Re: train precision
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(...) hi Steve, I think the problem is not exactly the same. The lego technic motors run always at the same speed so you need to use that kind of schema for speed control in robots. The train motors are different, they have a speed proportional to (...) (18 years ago, 29-Dec-05, to lugnet.robotics.rcx.legos)
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| | Re: train precision
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(...) Daniel, One problem you'll run into with most software is that it switches between power and float to adjust the motor levels. It works much better to switch between power and brake. Using most software, the train will continue to speed up, (...) (18 years ago, 27-Dec-05, to lugnet.robotics.rcx.legos)
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| | train precision
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A couple of years ago, i used brickOS. Then, i changed to Lejos... I have a moc where i use the RCX to control a train with a lego train motor. It is difficult to control the train with LejOS, because it only has 8 output levels. Two solve the (...) (18 years ago, 27-Dec-05, to lugnet.robotics.rcx.legos)
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| | earlier version of binutils?
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Hi, I have been trying to get brickos to compile on my linux machine. I followed the instructions here: (URL) used binutils version 2.16.1, and gcc version 4.0.2. The cross compile seemed to work. However, when I try to compile brickos, I get the (...) (19 years ago, 22-Dec-05, to lugnet.robotics.rcx.legos)
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| | Re: avoid messaging
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(...) I'd agree that a physical block is the easiest, although there is a software solution. The RCX can not recieve a command while it's transmitting - so if you saturate the transmitter with things to do, it will not be able to "look" for any (...) (19 years ago, 5-Dec-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.legos)
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| | RE: avoid messaging
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Yes, I indeed have an attachment which will act like blockage, but not a full one though. Sounds like this is the fastest and easiest to do. I fully understand the opcodes concept, as I myself wrote compile code before. However, these kids age only (...) (19 years ago, 5-Dec-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.legos)
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| | Re: avoid messaging
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(...) If you have an event waiting for a message, I doubt it will have much impact on the speed of the rest of the program. However, this will not catch the messages you're looking for. You can't use the "mail" function to receive op-code, such as (...) (19 years ago, 5-Dec-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.legos)
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| | avoid messaging
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Hi In order to avoid unwanted interruption, such as remote shutdown, from other RCX during execution time, I wonder if the only thing can be done to safe-guard my RCX will be having an independent task dedicated to receive message (mail). This, of (...) (19 years ago, 5-Dec-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.legos)
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| | using rotation sensor
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Most of you are aware of the speed of the robot often causes parity in distance via the feedback of rotation sensors because of inertia. In our experiment, even with a robot with moderate speed. The parity seems to often occur right at the beginning (...) (19 years ago, 30-Nov-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.legos)
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| | rack & pinion, & subvis
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My club children, age 11 to 14, just started to make a writer... This is different from what is in the Ferrari's book. The one we are attempting to build is to load the pen into the center of the construction. RCX is sitting on a mobile chassis. (...) (19 years ago, 26-Nov-05, to lugnet.robotics.rcx.legos)
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| | Re: use RCX with the lego set 4095
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(...) That would require extensive redesign, as the 4095 unit also contains the motors in a compact unit... Philo BTW: imho 4095 is not worth buying (main unit is close to useless) unless you get it at a very low price! (19 years ago, 25-Nov-05, to lugnet.robotics.rcx.legos)
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| | use RCX with the lego set 4095
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I wonder if anyone has experience with this set. The description on the lego site is not clear enough for me to determine whether I can replace the body with the RCX... Thanks! ---...--- -------- Elizabeth (19 years ago, 24-Nov-05, to lugnet.robotics.rcx.legos)
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| | brickOS on Mac OS X
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Hello, I'm trying to get a recent brickOS (0.9.0) working on Mac OS X 10.4.3. I have an RCX 2.0 with the USB tower. I have a cross-compiler (gcc 3.2.2) that apparently works, and using the firmware download program included with lejOS (specially (...) (19 years ago, 22-Nov-05, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx)
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| | problems with lnp+brickos+cygwin
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Hi everybody: I have installed and BrickOS 0.9.0 and Cygwin, since my machine uses Windows XP Home Edition. I have downloaded lnpd 0.9.0, but I have problems when installing this package. I run ./configure and everything seems ok, but when I try the (...) (19 years ago, 21-Nov-05, to lugnet.robotics.rcx.legos)
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| | dllx problems, with lnpd 0.9.0
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Hi, I'm having problems getting dllx to work. I expanded the lnpd 0.9.0 zip file from sourceforge. I did ./configure and make with no problems or error messages. Now, I run lnpd with "lnpd --nolock". Then I do "dllx test.lx" and the green light on (...) (19 years ago, 13-Nov-05, to lugnet.robotics.rcx.legos)
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| | Re: pre-releases brickos-0.9.0/lnpd-0.9.0 avail. for testing/feedback
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Hi, I'm having problems getting dllx to work. I expanded the lnpd 0.9.0 zip file from sourceforge. I did ./configure and make with no problems or error messages. Now, I run lnpd with "lnpd --nolock". Then I do "dllx test.lx" and the green light on (...) (19 years ago, 13-Nov-05, to lugnet.robotics.rcx.legos)
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| | Re: error in using brickOS under Bricx Command Center
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(...) I tried with both 0.2.6 and 0.9.0 (...) I am sorry for imprecise expressions. I meant that I followed your suggestions. But the result was the same as before. (...) I didn't try yet. (...) I am able to use brickos under command prompt as well (...) (19 years ago, 31-Oct-05, to lugnet.robotics.rcx.legos)
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| | Re: error in using brickOS under Bricx Command Center
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(...) 1. What version of brickos do you have installed? (cat VERSION from the brickos root directory and post the output) 2. What do you mean by "Of course I did in vain."? Be as precise as possible in your answer. With a correctly installed copy of (...) (19 years ago, 19-Oct-05, to lugnet.robotics.rcx.legos)
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| | Re: error in using brickOS under Bricx Command Center
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(...) As I said before, I am able to use brickOS under cygwin. Does this mean that I have files required by brickOS? I guess you don't mean that I have to run the two commands: make realclean make (Of course I did in vain.) Je-Young Choi (19 years ago, 19-Oct-05, to lugnet.robotics.rcx.legos)
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