 | | 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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