 | | AI, Neural Nets
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A month ago or so, I read a message which had a link about Lego and Artificial Intelligence (is not the van dam one). I remember it had several videos: -Simple Method -Adaline -Neural net ... The higher level the better results. Does anyone know (...) (24 years ago, 11-Apr-01, to lugnet.robotics)
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| | Re: Motor with Gear Reduction ??!??
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(...) Yeh, like the <set:8720> motor. By the way, is there any current set in production that includes the micromotor? I'm pretty sure that the last Technic set that had it was the <set:8480 Shuttle>. What about non-Technic sets? - David (24 years ago, 11-Apr-01, to lugnet.robotics)
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| | Re: Motor with Gear Reduction ??!??
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(...) Not sure if this is still available via S@H (or dacta, I suppose): <set:5119 5119 Micromotor> And I'm not sure if this has one? <set:8457 8467 {Power Puller}> DaveE (24 years ago, 11-Apr-01, to lugnet.robotics)
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| | Re: Motor with Gear Reduction ??!??
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(...) Yes, I saw this service pack on S@H about a week ago. It's also available through pisco (just the motor, not the entire pack) (...) No, it has the regular geared motor. (...) - David (24 years ago, 11-Apr-01, to lugnet.robotics)
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| | Re: 2.0 Firmware
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Did you edit the ATLClient.ini file? You have to specify where ATLClient is supposed to look for the files it uses (this is discussed in the Install.txt file). After editing this file, run ATLClient.exe and download the new firmware. Next open up (...) (24 years ago, 11-Apr-01, to lugnet.robotics)
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| | RE: Motor with Gear Reduction ??!??
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There is a large non-Technic divers set that has a micromotor and fiberoptics to get a flashing light effect. I'm not sure if this set is still in production - it has been on clearance in some stores a couple of month ago. Tilman (...) (24 years ago, 11-Apr-01, to lugnet.robotics)
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| | RE: Motor with Gear Reduction ??!??
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OK, I meant "general purpose motors". If you consider everything that is available today and turns if you apply electrical power to it, you get: - 5114 non geared 9V Motor - 5300 Train Motor 9V - 624 9V Motor. Actually, a motor block with two axles (...) (24 years ago, 11-Apr-01, to lugnet.robotics)
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| | RE: Motor with Gear Reduction ??!??
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Oops, it's a space set that has the Micromotor, not a divers set. It's 6979 Interstellar Starfigher, released in 1997. Tilman (...) (24 years ago, 11-Apr-01, to lugnet.robotics)
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| | Struggling with encoder wheel
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I'm having a hard time finding a good algorithm for the encoder wheel I came up with for use on my webcam. The way I packed the bits in the lookup table has made it hard to get any speed out of the algorithms. I'm using NQC, and the LEGO OS seems (...) (24 years ago, 11-Apr-01, to lugnet.robotics)
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| | Re: AI, Neural Nets
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I am not sure if you are talking about this link or not (...) (24 years ago, 11-Apr-01, to lugnet.robotics)
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| | Local news article: Lego My Robot
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"Thanks to microcomputers, big kids now have a reason to like Lego, too. And two of the biggest robo-experts hail from Ottawa" (URL) (24 years ago, 11-Apr-01, to lugnet.robotics, lugnet.loc.ca.on.ott)
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| | Amiga Software
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Hello All, I have just started with the Lego Mindstorm and would like to know if there is any software available for the Amiga computer to control the PBrick. I have looked in the most likely places but have not found any, I was told that there was (...) (24 years ago, 11-Apr-01, to lugnet.robotics)
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| | Re: robotica on TLC
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(...) Heh, Glad you found it useful! (...) Hmmm...I wonder how many Lego enthusiasts are also combat robot enthusiasts:) (...) Sounds like you really know you Lego Technic, I thought you might only be using them to illustrate ideas. BTW, do you have (...) (24 years ago, 11-Apr-01, to lugnet.robotics)
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| | Re: Amiga Software
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I don't know if an Amiga port of NQC has already been done, but if not it shouldn't be very difficult. Grab the sources from (URL) only real "porting" is access to the serial port, which is abstracted in a single class. If the Amiga has POSIX style (...) (24 years ago, 12-Apr-01, to lugnet.robotics)
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| | Re: Motor with Gear Reduction ??!??
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isn't that the standard motor?? Shaun Sullivan schrieb: (...) (24 years ago, 11-Apr-01, to lugnet.robotics)
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| | Re: Motor with Gear Reduction ??!??
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Does anybody know (or can anybody point me to) the ratio of speeds between the geared and ungeared motor? -s (...) (24 years ago, 12-Apr-01, to lugnet.robotics)
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| | Re: Pneumatic Pump Testing Goes Hi Tech
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(...) Methinks it'll be muscle wire or air muscle or something akin... Well, if you don't need the pneumatics any more, how about "donating" them to me :-) (24 years ago, 12-Apr-01, to lugnet.robotics, lugnet.technic)
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| | Re: Pneumatic Pump Testing Goes Hi Tech
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(...) Thanks for the identification of the tire pressure gauge. I reckon the stores will soon be doing a brisk trade in them. But I would hesitate to use the word *calibrate* - the pressure sensor is a far more delicate device than the tire gauge. (...) (24 years ago, 12-Apr-01, to lugnet.robotics, lugnet.technic, lugnet.build, lugnet.dacta)
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| | Re: Motor with Gear Reduction ??!??
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(...) the (...) Try this page: "(URL) couldn't fit it in one line so some copy&paste should be used. (Looking at the table, though, I think 60 rpm is too slow for the new geared motor) - David (24 years ago, 12-Apr-01, to lugnet.robotics, lugnet.technic)
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| | Re: Motor with Gear Reduction ??!??
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(...) Depends on when and to whom you ask the question. The ungeared motor was "standard" for a long time, and has only been gradually outshadowed by the geared motor since 1998. (24 years ago, 12-Apr-01, to lugnet.robotics)
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| | Re: Struggling with encoder wheel
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Pretty neat Chris. You've very nearly recreated a special kind of optical encoder that was developed by my former employers called a virtual absolute encoder. It didn't use diferent colors but it used a "time-window" to read the last few states off (...) (24 years ago, 12-Apr-01, to lugnet.robotics)
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| | Re: Pneumatic Pump Testing Goes Hi Tech
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(...) Thanks for the information. I'm going to see if I can get hold of one of these... (...) I use pneumatics mainly where brute strength is needed rather than smooth motion, such as the raising/lowering mechanism on a crane (although this (...) (24 years ago, 12-Apr-01, to lugnet.robotics, lugnet.technic)
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| | Re: Struggling with encoder wheel
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(...) If I had room for a 64 element array, I'd just use that and make a lookup table. Unfortunately I don't, and I can't figure out a way to pack things in and still look them up with any speed. I also can't find any way to mathematically convert (...) (24 years ago, 12-Apr-01, to lugnet.robotics)
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| | Re: Struggling with encoder wheel
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(...) Can't you just use a large switch() statement inside a function to simulate a 64 element array? If none of the values in the array ever change: int array ( int x ) { switch ( x ) { case 0 : return element_0 ; case 1 : return element_1 ; case 2 (...) (24 years ago, 12-Apr-01, to lugnet.robotics)
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| | Re: Battery Tests
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I really cant make any comparison to batteries, ever since day one I've used Rayovac Rechargeable Alkalines. I bought two 4 packs for.. $6 each? and the recharger that only charges 4 at a time for another $8? I forget, bought it all around the (...) (24 years ago, 12-Apr-01, to lugnet.robotics)
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| | Looking for orthogonal motion
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Hi all, I haven't been able to find anything on the net about a Lego implementation of an orthogonal drive system using only motors (i.e. no pnumatics). Orthogonal is when your your chassis can go straight forward and back, and also side to side, (...) (24 years ago, 12-Apr-01, to lugnet.robotics)
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| | Re: Motor with Gear Reduction ??!??
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Hi, I could not find the link but as far as I remember there was an information page about the sensors and motors and solar panels on pitsco ( or something else ?) site. I am unable to find the same. The pages had all the technical characteristics (...) (24 years ago, 12-Apr-01, to lugnet.robotics)
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| | Re: Motor with Gear Reduction ??!??
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Found it! (URL) technical specs and then select Motor. -Rahul (...) (24 years ago, 12-Apr-01, to lugnet.robotics)
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| | Re: Motor with Gear Reduction ??!??
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Found it! (URL) technical specs and then select Motor. -Rahul (...) (24 years ago, 12-Apr-01, to lugnet.robotics)
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| | Re: Looking for orthogonal motion
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Hi David, we had the same problem and solved it not using your raising-lowering idea (we also thought about it ;-) ) but we build a synchrodrive. Have a look at it if interested. (...) (24 years ago, 12-Apr-01, to lugnet.robotics)
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| | Re: Struggling with encoder wheel
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(...) You could make a big wheel made of lego plates, and put smooth ones on top for 'colors'. Then you could use a touch sensor, and use the difference between the low spots and the high spots as 1 location. Do you really need to know the direction (...) (24 years ago, 12-Apr-01, to lugnet.robotics)
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| | Re: Looking for orthogonal motion
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Hi David, I have built a robot that does this for a university 'robot maze solver' project. My solution is big, ugly, very slow and pretty complex. It could probably be improved a lot if it was redesigned. However, it uses 3 motors (1 for (...) (24 years ago, 12-Apr-01, to lugnet.robotics)
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| | Re: Struggling with encoder wheel
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(...) I was wondering how you were handling the edge conditions. Have you tried making a wheel which is a continuous gradiant from black to white over the 360 degrees of rotation? Lookup wouldn't be required as there would be a direct relationship (...) (24 years ago, 12-Apr-01, to lugnet.robotics)
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| | Re: Pneumatic Pump Testing Goes Hi Tech
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(...) My answear to that is of course unprintable (although it starts with 'P' and ends with 'off') :-) ha ha ha... Steve (24 years ago, 12-Apr-01, to lugnet.robotics, lugnet.technic)
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| | Problems with the scout
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I downloaded the program from RCX Command Centre to my scout. I then pressed run, but it didn't run the program. It wasn't to big because it was it was only 'On(OUT_A);'. Does anybody know what to do? TNX (24 years ago, 12-Apr-01, to lugnet.robotics)
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| | Re: 2.0 Firmware
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In article <GBn3FD.Cw5@lugnet.com>, Dean Hystad <dean.hystad@mts.com> writes (...) What and where would the 'DLL' path be?? (24 years ago, 12-Apr-01, to lugnet.robotics)
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| | Re: Amiga Software
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(...) ... in the US. It was HUGE in Europe, esp. UK and Germany. -Simon (24 years ago, 12-Apr-01, to lugnet.robotics)
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| | Re: 2.0 Firmware
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(...) The DLL path is the directory that the *.dll files are located (dll standing for Dynamic Linked Library). You probably unzipped all the files into one directory. If this is the case then all the paths should be to that directory. Make sure (...) (24 years ago, 12-Apr-01, to lugnet.robotics)
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| | Internet Controlled Robots
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I am wanting to begin experimenting with web based control of the RCX using RoboLAB 2.0 but have not been able to find any information. Can anyone kindly lead to some resources? I have only the knowledge that this can be done, nothing else. (24 years ago, 12-Apr-01, to lugnet.robotics.rcx.robolab, lugnet.robotics.edu, lugnet.robotics)
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| | Re: Struggling with encoder wheel
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Chris, This idea would require an additional motor, but, an alternate approach might be to create your wheel with 36 alternating grey and white (perhaps by having a third or fouth shade/color you could have more information) segments. Then, in each (...) (24 years ago, 12-Apr-01, to lugnet.robotics)
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