 | | [ANN] pbForth Version 2.1.3 Release
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The new 2.1.3 Version of pbForth has only minor fixes thanks to the investigative efforts of David Rojas and Rob Harvey. They were able to provide detailed, reproducible bug reports, which makes fixing bugs so much easier. Thanks guys! Here's what (...) (23 years ago, 10-May-02, to lugnet.robotics.rcx, lugnet.robotics.rcx.pbforth)
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| | Re: New MOC: RoboArm I
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(...) I agree with your opinions of the flex axles, they dont turn smoothly, and if there is any slack the flex axles sometimes bend in on themselves before turning the axle. I found the best way to use them is to keep the amount of bend to a minium (...) (23 years ago, 10-May-02, to lugnet.robotics)
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| | Finding "real" upgrade sets and flex axles on eBay
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I've bought the upgrade software from Lego (5 copies in fact @ $20 plus shipping a pop) and I've bought "upgrade kits" or "upgrade sets" on eBay for around $40, plus shipping. These "sets" are not that common, but not rare, either, and include the (...) (23 years ago, 10-May-02, to lugnet.robotics)
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| | egcs compiler - float problems?
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Can someone using the egcs compiler suite test the following code? It seems it doesn't compile under egcs. int main(int argc, char *argv[]) { double foo = 1.0; return foo > 0.1 ? 0 : 1; } Compiles fine under gcc 3.0.3. Regards, Michael (23 years ago, 10-May-02, to lugnet.robotics.rcx.legos)
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| | Re: RIS 2.0 Upgrade Kit content?
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Me too... It was kind of disappointing just to get software. I at least thought I would get a few misc. pieces. -Rob "Bob Fay" <rfay@attbi.com> wrote in message news:GvvKyE.pJ@lugnet.com... (...) hardware? (...) (23 years ago, 10-May-02, to lugnet.robotics)
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| | Re: Differential?
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(...) This is the famous dual differential, which was probably done first by Leo Dorst. Take a look at what he calls the "adder/subtractor device" at (2 URLs) (23 years ago, 10-May-02, to lugnet.robotics)
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| | More problems with floats
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When I try to compile a program containing the following function: bool tr_guard_foo_loc2_t0() { return getVarVal(&var_foo_cl) >= 0.1; } I get this error: /tmp/ccyEbqnS.s: Assembler messages: /tmp/ccyEbqnS.s:237: Error: cannot create floating-point (...) (23 years ago, 10-May-02, to lugnet.robotics.rcx.legos)
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| | Scout and Cybermaster (WAS: Re: New MOC: RoboArm I
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(...) This is a bit of a tangent, but... How much memory does the Scout have? I've heard 32K RAM for the RCX but have never heard a number for the Scout. I picked up several Robotic Discovery Sets insanely cheaply about 18 months ago and use them (...) (23 years ago, 11-May-02, to lugnet.robotics)
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| | Re: semaphores
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Would it be possible for you to send the entire source? I would like to see how it interacts with the rest of the program. Thanks for your help. "kenneth johansen" <kennethj@stud.cs.uit.no> wrote in message news:3CDAC372.34D72C....uit.no... (...) (...) (23 years ago, 10-May-02, to lugnet.robotics.rcx.legos)
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| | Re: New MOC: RoboArm I
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wow, you guys are smart! I need to play with programming agian, I forgot all this stuff. Hey Brian I have two flex axles if you want to borrow them, if that's the route you end up taking. Eric (23 years ago, 10-May-02, to lugnet.robotics)
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| | Re: New MOC: RoboArm I
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By making a good programming you can control lots of functions with one touch sensor, wich would be complicated but it's possible. I have tried using two touch sensors to control motors, let's say you press the sensor once for motor A, twice for B, (...) (23 years ago, 10-May-02, to lugnet.robotics)
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| | Re: RIS 2.0 Upgrade Kit content?
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Mine contained only the software. I bought the USB tower from Lego Dacta. -- Bob Fay THE SHOP (URL) Wang" <lkwang@mail.ncku.edu.tw> wrote in message news:B901594A966879A....edu.tw... (...) (23 years ago, 10-May-02, to lugnet.robotics)
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| | RIS 2.0 Upgrade Kit content?
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What are in the 2.0 upgrade kit? Only software, or software and hardware? It is said that it contains a USB IR transmitter. I use NQC, on a Macintosh. Thank you in advance. -- Li-Kai Wang, M.D. Dept. of Anesthesiology, National Cheng Kung University (...) (23 years ago, 10-May-02, to lugnet.robotics)
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| | Re: New MOC: RoboArm I
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(...) Yes - you need to thread them though some technic beams along the way. ---...--- Steve Baker ---...--- Mail : <sjbaker1@airmail.net> WorkMail: <sjbaker@link.com> URLs : (8 URLs) (23 years ago, 11-May-02, to lugnet.robotics)
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| | Re: New MOC: RoboArm I
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(...) Well, with three touch sensors, you can have (at best) only 8 possibilities at any instant - but with even only one touch sensor, you can input any conceivable command if you have enough time. (Imagine if you entered your commands in morse (...) (23 years ago, 11-May-02, to lugnet.robotics)
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| | Re: New MOC: RoboArm I
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I don't know of any other source for the flex axle. I found that they did not turn smoothly. Tend to loft. Maybe they can be contained at several points to stop the whipping action. Micromotors seem to work well in pairs, I guess they unlock each (...) (23 years ago, 10-May-02, to lugnet.robotics)
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| | Re: New MOC: RoboArm I
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(...) You should be able to get 3 sensors to control 3 motors like this: Sensor A not pushed = forward Sensor A pushed = reverse Sensor B pushed and not C = Motor 1 Sensor C pushed and not B = Motor 2 Sensor B and C pushed = Motor 3 -Kyle (23 years ago, 10-May-02, to lugnet.robotics)
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| | Re: New MOC: RoboArm I
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(...) Thats the exact problem I'm having. I would like to have 1 RCX be able to control the direction of 2 motors. So what I trying to make is a 4 button controller using 3 touch sensors. For instance, I want to have 1 RCX control the opening and (...) (23 years ago, 10-May-02, to lugnet.robotics)
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| | Re: New MOC: RoboArm I
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(...) Yes - I agree. I'd avoid using micromotors anyway because of their tendancy to lock up when you put any kind of strain on them. Micromotors are good for little decorative features or small one-time operations that don't need much power. So (...) (23 years ago, 10-May-02, to lugnet.robotics)
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| | Re: ___cmpsi2
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(...) OK, I planned to test 0.2.6; this is the right moment to do it. (...) Do you know why? (I'm just curious) (...) Thank you very much. This was really important to me. Eric (23 years ago, 9-May-02, to lugnet.robotics.rcx.legos)
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