 | | Re: Curved Feet
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Your comment about the wheels is the main annoyance of the inflexibility I mentioned. Re beams: Heh, I had several of the old Expert Builder Sets so I had an overload of beams. I've been buying lots of parts trying to bring up my inventory of more (...) (24 years ago, 12-Apr-01, to lugnet.robotics)
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| | Re: Struggling with encoder wheel
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hi Chris, (...) That's in fact a good principle. Isn't it possible to improve the dynamic range of the light-sensor by taping the red LED, I read that somewhere but I don't know where. Why not use a continuous grayscale, with pure with and black (...) (24 years ago, 12-Apr-01, to lugnet.robotics)
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| | Re: Problems with the scout
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(...) Are you *sure* it didn't run? A program with just one instruction would run in less than a thousandth of a second - you might not notice! (24 years ago, 12-Apr-01, to lugnet.robotics)
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| | Re: Amiga Software
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(...) It's not especially posix, but you can open a file named "SER:" with fopen and read and write to it that way. It's quite simple. (...) If you have trouble getting it going, shout. I have a working 3000/060 still, and the SAS C++ compiler. I (...) (24 years ago, 12-Apr-01, to lugnet.robotics)
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| | Re: two RC servo motor interface to the RCX
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hi, (...) Ok, I dont know anything about servo's, but your schematics and explanations looks good. (Very well documented, nice work) (...) How can an indivudual compete with a "design group" ? The steam-engine and the Stirling motor are also far (...) (24 years ago, 12-Apr-01, to lugnet.robotics)
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| | RE: two RC servo motor interface to the RCX
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(...) Please don't get the wrong impression - my "design group" is me doing embedded systems design and my wife doing architectural illustration. I guess two people is a group...:-) Cheers Ralph (24 years ago, 13-Apr-01, to lugnet.robotics)
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| | Re: Pneumatic Pump Testing Goes Hi Tech
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Would be glad to compare notes. Directly I have finished the tests I'll get back to you. (...) (24 years ago, 13-Apr-01, to lugnet.robotics, lugnet.technic, lugnet.build, lugnet.dacta)
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| | Re: Motor with Gear Reduction ??!??
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(...) Here's a good comparison of the geared motor, ungeared motor and micromotor: (URL) Regards Micah J. Mabelitini - LUGNET #918 - accutron@kih.net The University of Kentucky - SECC Middlesboro ASC (URL) (24 years ago, 13-Apr-01, to lugnet.build, lugnet.robotics)
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| | Re: two RC servo motor interface to the RCX
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(...) Thanks for the link to your page. That was what i am looking for. Just an alternative for that problem. Brilliant pages! One reason for me, using a PIC microntroller in two of my designs was, that if i manage to implement the serial interface, (...) (24 years ago, 13-Apr-01, to lugnet.robotics)
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| | Re: Struggling with encoder wheel
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(...) I did an experiment printing out many different gradients and I now understand part of your problem. It was hard to get any change in the reading (~40 - 50). So next I then cut a wedge shaped slit in a piece of white paper. Aiming the sensor (...) (24 years ago, 13-Apr-01, to lugnet.robotics)
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| | Re: Struggling with encoder wheel
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As I am not so purist, I think that an angle sensor based on a small potentiometer (There's a description on Michael Gaspari's site) would be the simplest solution... But your absolute encoder is a challenge in itself! What about using two (...) (24 years ago, 13-Apr-01, to lugnet.robotics)
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| | Re: Junkyard Wars (was: Re: robotica on TLC)
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(...) The closest I know is RoboGladiator: (URL) Jürgen Stuber <stuber@loria.fr> (URL) (24 years ago, 13-Apr-01, to lugnet.robotics)
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| | Re: Motor with Gear Reduction ??!??
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(...) Two, one on each side. I've not looked inside, but they seem comparable to the gear motor in the RIS. Jürgen (24 years ago, 13-Apr-01, to lugnet.robotics)
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| | Team Challenge vs RIS1.5
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Does anyone know the physical differences between the ROBOLAB Team Challenge Set from Dacta and the ROBOTICS INVENTION SYSTEM 1.5? Both sets have: 1 RCX 2 Motors 2 Touch Sensors 1 Light Sensor The Team Challenge set has 715 pieces, RIS1.5 has 717. (...) (24 years ago, 13-Apr-01, to lugnet.robotics)
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| | Orthogonal Robot Drive
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I have put up a web page with some pictures of my orthogonal drive robot. You can find it here: (URL) others have built this kind of robot I would be interested to hear from you. Cheers, Tom. (24 years ago, 13-Apr-01, to lugnet.robotics)
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| | Re: Struggling with encoder wheel
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(...) That was the first version of the webcam mount. After rotating back and forth a few times you can't tell where the camera is anymore. There also aren't any 42 tooth gears BTW, just a 40. Last night I used the datalog to record what the light (...) (24 years ago, 13-Apr-01, to lugnet.robotics)
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| | Re: Problems with the scout
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Are you using a version of RCX Command Center that supports the Scout? The original RCXCC did not support Scout and only the recent updates made by others have added Scout support. I have just started using the version put out by John Hansen and it (...) (24 years ago, 13-Apr-01, to lugnet.robotics)
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| | Robowarriors
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I've now pretty much finished the Lego Robowarriors web-site. It's meant to be a place to find everything you want to know about Lego robot combat -- Robot Wars/Battlebots with Lego. I'm trying to build a comprehensive database of peoples' Lego (...) (24 years ago, 13-Apr-01, to lugnet.robotics)
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| | Re: Struggling with encoder wheel
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(...) I have noticed the lost count phenomenon also (you attribute it to gear slop on you web page, but gear slop will give you errors in the 1/2 a tooth range or less and it doesn't get worse over time). In fact there was a very long thread about (...) (24 years ago, 13-Apr-01, to lugnet.robotics)
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| | Receiving IR data
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Hi there, I'm new to the group, so I'm not too sure what's on and off topic: if this is off-topic, sorry in advance. I was looking at using the IR tower that comes with Mindstorms for my own use, but I also wanted to experiment using it to (...) (24 years ago, 13-Apr-01, to lugnet.robotics)
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