 | | Stair Climber 4x4
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Doing a search on stair climbing robots, I came accross this link: (URL) basic chassis should be buildable with Legos. Could be reasonably quick. Any thoughts? (23 years ago, 13-Mar-02, to lugnet.robotics)
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| | Re: Erroded axles
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(...) for (...) to (...) And also take apart easily when under load, or when your vehicle runs over rough terrain :-( I love their modularity, but they are much less than optimal for all the other aspects. Mario (23 years ago, 13-Mar-02, to lugnet.technic, lugnet.robotics)
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| | Re: Erroded axles
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(...) Didn't you try to glue piece of rubber to the side that is in contact with ground? It should help. (If you aren't LEGO purist, of course - in that case you shouldn't even read it! You are risking serious nightmare. :-))))) have a nice day (...) (23 years ago, 13-Mar-02, to lugnet.technic, lugnet.robotics)
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| | Re: Erroded axles
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(...) Unfortunately they slip well on ground too! Philo (23 years ago, 13-Mar-02, to lugnet.technic, lugnet.robotics)
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| | Re: Erroded axles
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They're still available at Pitsco-Dacta for $7.50 a pack of 36 links, but they probably don't ship overseas. Someone is always selling a couple packs on eBay for $9.99, maybe he'll ship overseas. I just bought 2 packs, and 36 links appears to be a (...) (23 years ago, 13-Mar-02, to lugnet.technic, lugnet.robotics)
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| | Re: legOS not working with external relay switches
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I think I remember hearing that legOS full power is actually about 99% power ??? Something to do with an optimization to the code, which would otherwise require special handling ??? This is a vague memory - can others confirm ??? Max. ----- Original (...) (23 years ago, 12-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: Erroded axles
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By the way, i think the worst problem is using that rubber treads. They are either too loos or too tough and make a lot of friction. Is it possible to purchase somewhere several packages of old catterpillar treads? ( I suppose it's #1230 service (...) (23 years ago, 13-Mar-02, to lugnet.technic, lugnet.robotics)
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| | Re: Erroded axles
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(...) Thanks, i surely will, but it can take more than a week. I study too far away from home (and from my LEGO pieces :) of course..) but i will let you know any results. have a nice day Robert (23 years ago, 13-Mar-02, to lugnet.technic, lugnet.robotics)
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| | WinLNP
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Hi, I downloaded the WinLNP and set it up, but i can´t make a communication beetewn the the IR Tower and RCX. Some of you could connect it? Thank you (23 years ago, 12-Mar-02, to lugnet.robotics)
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| | Re: Re: Using Laptop´s IR port
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This is the only program I've found that uses an IrDA port as a trainable remote control: (2 URLs) this helps. Rob ___...___ Get your own "800" number (...) (23 years ago, 12-Mar-02, to lugnet.robotics)
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| | Re: A very inspiring design
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Joe's awesome-- no doubt. Just when you think he's covered every style of bipedal motion, he comes up with another. I'd LOVE to see some more (besides Eric Sophie's brilliant creations) lego mecha that are actually mobile. I've yet to incorporate my (...) (23 years ago, 12-Mar-02, to lugnet.technic, lugnet.robotics, lugnet.build.mecha, lugnet.build)
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| | Re: Using Laptop´s IR port
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(...) Probably not. I've done this with my palm pilot and it required major direct hardware stuff. You'll have to generate a 38kHz ir carrier signal. I doubt, that this is easy to achieve with a laptop. Are there any programs, that can emulate a (...) (23 years ago, 12-Mar-02, to lugnet.robotics)
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| | Not able to read sensor values from RCX-Unit
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Hi, i'm trying to write a program that makes a Legoroboter able to navigate in different rooms / labyrints. For this the computer needs to know, when one of the touch-sensors is pressed. I use poll(9,x) for this. My problem is that the returned (...) (23 years ago, 12-Mar-02, to lugnet.robotics)
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| | Re: Linux driver for USB Tower
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A better link would be (URL) you have to find the link for the Project Home Page (under Public Areas). Ed P.S. I am not involved either! Rainer Balzerowski <balze2@gmx.net> wrote in message news:Gpn9Lo.6E@lugnet.com... (...) (23 years ago, 11-Mar-01, to lugnet.robotics.rcx.legos)
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| | Using Laptop´s IR port
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Hi, I have a laptop sony, and I wonder if I can used the laptop´s IR port to downloads the programs and use LNP? Thank you. I´m using Windows 2000 but i could use Linux if i need to . I don´t know much about linux :( I´m using LegOS 0.2.5 (23 years ago, 12-Mar-02, to lugnet.robotics)
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| | Re: Erroded axles
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(...) I think that's just an inherent problem with lubricating parts. I don't think there is an easy way around it, unless we operate our models in a very clean environment. But even then it's hard to keep everything clean. (...) Have a look though (...) (23 years ago, 12-Mar-02, to lugnet.technic, lugnet.robotics)
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| | Re: Erroded axles
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(...) Yes, i did it before posting the message. It is of no use for me, front axle is too low - too small ground clearance, every lubrication i tried catched dust and made things much worse. I didn't tried teflon (?tephlone?) as lubricatin yet. (23 years ago, 12-Mar-02, to lugnet.technic, lugnet.robotics)
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| | Re: Reading exceptions
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(...) The 0078 is the method signature number of the method where the exception was thrown. The 8, is the least significant figure of the number referring to the exception class thrown. To get further information, you must add the -verbose option to (...) (23 years ago, 12-Mar-02, to lugnet.robotics.rcx.java)
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| | Re: Cybermaster on WinXP
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I received an e-mail from someone who was able to successfully run the Cybermaster software on Windows XP. His tips are as follows: "1. Instead of using the Quicktime that comes with Cybermaster, I went to apple.com and downloaded the latest. It (...) (23 years ago, 12-Mar-02, to lugnet.robotics.cybermaster)
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| | Should I start regretting my VC impulse buy?
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Hi all, I just received my Vision Command set, purchased on an impulse when I read a post on Lugnet that I could get it for $25 from KBtoys.com. It arrived today, and I've just spent a couple of fruitless hours trying to get the Lego camera to work (...) (23 years ago, 12-Mar-02, to lugnet.robotics.vc)
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| | Re: New Book - Core Lego Mindstorms
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Thanks for the kind words Mario! I just want to mention to others who might be ordering to please use the Amazon Associates link on our leJOS web page: (URL) profits generated through this program will be used to obtain a domain name and hold (...) (23 years ago, 12-Mar-02, to lugnet.robotics)
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| | Book on Programming the RCX with Java
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If anyone would like more information on the new book "Core Lego Mindstorms Programming" check out my announcement on Lugnet: (URL) (23 years ago, 12-Mar-02, to lugnet.robotics.rcx, lugnet.robotics.rcx.java)
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| | Re: Lego mindstorms and windows 3.11
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(...) There's only one class (PSerial_win.cpp) that has Win32 code in it. If someone wants to write a DOS version of the serial interface class (perhaps named PSerial_dos.cpp), I'll gladly include it in the distributions. Dave (23 years ago, 12-Mar-02, to lugnet.robotics)
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| | Re: legOS not working with external relay switches
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three 2200uf capacitors fixed the problem but does anyone know why the difference between legOS and the standard firmware?? "Kingsley Gifford" <kgifford@thezone.net> wrote in message news:3C8BDD44.809080...one.net... (...) (23 years ago, 11-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: legOS not working with external relay switches
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three 2200uf capacitors fixed the problem but does anyone know why the difference between legOS and the standard firmware?? "Kingsley Gifford" <kgifford@thezone.net> wrote in message news:Gss5st.I5F@lugnet.com... (...) (23 years ago, 11-Mar-02, to lugnet.robotics)
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| | Re: Erroded axles
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Not the best picture, but dust heaps non-the less: (URL) (23 years ago, 11-Mar-02, to lugnet.technic, lugnet.robotics)
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| | Re: Erroded axles
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I think you'd want to use a silicon lubricant, not greese. -- Greg (...) (23 years ago, 11-Mar-02, to lugnet.robotics)
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| | Re: Erroded axles
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In lugnet.technic, Fredrik Glöckner writes: <snip> (...) Lubrication has been discussed quite a bit before. Be sure to check out "lubrication" under the Popular Subjects and FAQ section on the Technic front page: (URL) (23 years ago, 11-Mar-02, to lugnet.technic, lugnet.robotics)
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| | Re: Fw: exponents, e^
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legOS isnt hard to setup on windows, but i think lejos is an easier environment to setup/use, especially for users who have no cygwin/unix experience.... (...) (23 years ago, 11-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: Erroded axles
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(...) It is pretty normal to experience wear in LEGO axles and bushings and so on. In my experince, this is happens when you have a fast turning axle which runs for an extended period of time, especially when there is some load on the axle. I have (...) (23 years ago, 11-Mar-02, to lugnet.technic, lugnet.robotics)
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| | Re: A very inspiring design
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Wow! This biped is awsome. Joe has some very slick designs, I am completly humbled by this simplicity of this particular biped. It even turns, which is VERY hard to implement. There are other bipeds that claim to turn..I have serious doubts about (...) (23 years ago, 11-Mar-02, to lugnet.technic, lugnet.robotics, lugnet.build.mecha, lugnet.build)
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| | Erroded axles
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Hallo to everyone first, sorry to all language purists, it's not my native language. I like treaded vehicles so i built very simple one using rubber treads from RIS 1.5 set. ( actually it was "tank" very similar to "dozer" from RIS 1.0, but without (...) (23 years ago, 11-Mar-02, to lugnet.technic, lugnet.robotics)
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| | Re: More then 3 Lego Light Sensors at a time?
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An active multiplexor would solve your problem. Take a look at the one sold at www.mindsensors.com, it allows you to hook three sensors to one input port. The sensors can be of any type. They don't work directly with legOS, but I've summited a legOS (...) (23 years ago, 11-Mar-02, to lugnet.robotics)
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| | Reading exceptions
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Hello, I've recently started working with lejOS and was having some dificulty with my code. When ever I get an exception, there is a buzz, the arrow under the 2 lights up, and a number like "0078 8" shows up. I was wondering how I read this number (...) (23 years ago, 11-Mar-02, to lugnet.robotics.rcx.java)
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| | Re: More then 3 Lego Light Sensors at a time?
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(...) Have you tried both active and passive mode? Have you tried putting them in series? Other than that you could try to use a switch to select one of several sensors. Jürgen (23 years ago, 11-Mar-02, to lugnet.robotics)
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| | Re: New Book - Core Lego Mindstorms
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Hi Brian The list of the covered topics makes your book very promising. I'm going to pre-order it right now. Good luck! Mario (...) a (...) programmers (...) Lego (...) Bean) (...) robots (...) (23 years ago, 11-Mar-02, to lugnet.robotics)
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| | More then 3 Lego Light Sensors at a time?
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Hello all, I have been lurking for a while, and tried doing a little searching on the net, and have not seen this anywhere. Is it possible to use more then 3 standard lego light sensors at a time? I have seen that there are configurations for (...) (23 years ago, 11-Mar-02, to lugnet.robotics)
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| | Re: Lego mindstorms and windows 3.11
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(...) Yeah - actually programming is what I do for a living, in a combination of perl, java, C++ and anything else they care to throw in my direction. I actually found the visual lego programming surprisingly entertaining and powerful and it was a (...) (23 years ago, 11-Mar-02, to lugnet.robotics)
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| | Re: Lego mindstorms and windows 3.11
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(...) You mean USB, although the small packet size and generally unreliable nature of the IR connection makes it seem like UDP sometimes :-) I just spent the best afternoon I've spent in a long time trying to make my lego robot follow wells *well*. (...) (23 years ago, 10-Mar-02, to lugnet.robotics)
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| | Re: Re: Lego mindstorms and windows 3.11
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NQC may work with Windows 3.xx if Win32s is installed. When I figure out where I put that old 3.xx machine or two, I'll try it out. If the computer has MS DOS on it, then QBASIC is probably there as well. One could always use that. There are several (...) (23 years ago, 11-Mar-02, to lugnet.robotics)
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