 | | Re: vision command idea...
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(...) For our purposes, this may not matter. However, couldn't the rear wheels be steered with a reciprocator? So as the steering wheel turns to the right, the rear wheels start turning right, then turn back to the left? So at, say 1/4 turn, the (...) (25 years ago, 18-Dec-00, to lugnet.robotics)
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| | Re: vision command idea...
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Another problem with all wheel steering is the problem of "switch over." Honda had a prototype of an all wheel steering car which used the mechanism of turning the wheels in opposite directions at slow speeds for improved turning radius and turning (...) (25 years ago, 15-Dec-00, to lugnet.robotics)
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| | Re: vision command idea...
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(...) Indeed - I've seen a good variation of this with a 4 axled vehicle which had two bogies with two axles each. Each pair of wheels on the side of each bogie had longitudinal pendulum type unsprung suspension, and the front bogie had an (...) (25 years ago, 18-Dec-00, to lugnet.robotics)
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| | Re: Touch Sensor Caracteristics?
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(...) Yes. (...) That's not possible, as they are all slightly different, and it also varies a little over time. I measured it for my sensors with the RCX, depressing them slowly by a rack and measuring every 1/100mm (nominally, i think LEGO technic (...) (25 years ago, 18-Dec-00, to lugnet.robotics)
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| | Re: batteries? RCX/CYBERMASTER
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(...) ^^^^special swedish variant :-) (...) No idea, should be very little, try measuring it :-) (...) Don't know, but AFAIK motor current is limited to 500mA per motor, so three motors give 1.5A. (...) AFAIR (now that's really long ago I built (...) (25 years ago, 18-Dec-00, to lugnet.robotics)
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| | RCXcc
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Does anyone know if the RCX Command Center will be updated to have the latest NQC 2.2 running on it. Currenlty, it runs NQC 2.1r1. (25 years ago, 18-Dec-00, to lugnet.robotics)
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| | Books fo Mindstorms
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Hi, in Germany you can get the new book "Extreme Mindstorms - An advanced guide to Lego Mindstorms" from Dave Baum, Michael Gasperi, Ralph Hempel and Luis Villa. It 's great!! If you are interested in some deeper hardware informations, RCX 2.0 (...) (25 years ago, 17-Dec-00, to lugnet.robotics, lugnet.robotics.rcx)
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| | Re: New member; a few questions ...
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(...) I don't think that would be practical using the standard SPO-256 synth chip, but you might have some luck with the onboard speaker and tones. I had a computer game once that would say various versions of "ouch" through the PC-speaker. If you (...) (25 years ago, 16-Dec-00, to lugnet.robotics)
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| | Vision command & macintosh
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Hi, has anybody an idea to use the vision command with a macintosh? All newer Macintosh have usb for connecting the camera but there comes no driver for it from Lego. Ralf (25 years ago, 17-Dec-00, to lugnet.robotics, lugnet.robotics.rcx)
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| | Touch Sensor Caracteristics?
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It seems to me that the touch sensors have very different caracteristics. One has ~ 390 ohms and another ~ 480 when pressed to the bottom. Also, when pressed just gently, they seem to have a higher resistance. Is this correct? Is there anyone who (...) (25 years ago, 17-Dec-00, to lugnet.robotics)
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| | Re: Opening RCX Code programs in Web Browser gives text
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(...) it surprised me, since i dind't know that rcx code was text... (robolab sure isn't text) and yes, i realize that the browser has no lego-awareness and that a similar effect can be seen with some text editors. i still think its cool. (...) yeah (...) (25 years ago, 17-Dec-00, to lugnet.robotics, lugnet.robotics.rcx)
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| | Re: batteries? RCX/CYBERMASTER
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(...) Here are some battery related: How many mA does the Tower Unit consume? How many mA does the Mobile Unit consume with both internal motors and the external active? Would a 7809 (and a couple of capacitors) stabilize the voltage safe enough? (...) (25 years ago, 17-Dec-00, to lugnet.robotics)
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| | Re: Opening RCX Code programs in Web Browser gives text
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(...) That is not very surprising, as RCX Code is text. So there is no LEGO-awareness in the browser. (...) Yes, they did the right thing using text for storage of programs. Jürgen (25 years ago, 17-Dec-00, to lugnet.robotics, lugnet.robotics.rcx)
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| | Re: vision command idea...
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(...) Many kinds of construction equpiment actually use unsprung suspensions, so I think this is a sane approach. A telescopic handler, for example, needs to be able to lift many different kinds of weights, hence it cannot have the kind of (...) (25 years ago, 17-Dec-00, to lugnet.robotics)
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| | pneumatic pack air tank
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i was wondering if any one would be interested in buying pneumatic air tanks or other pneumatic parts individuly if i were to start buying pneumatic packs selling them pricing would be as follows: air tank $ 4 air hose $ 3 all 3 colors in pack (...) (25 years ago, 17-Dec-00, to lugnet.robotics)
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| | Re: Opening RCX Code programs in Web Browser gives text
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I should add that this was Internet Explorer 5.5. I just discovered that this does not work with Netscape... although maybe there is some setting that you can do to make it happen. Of course, I could always link the .rcx extension with launching (...) (25 years ago, 17-Dec-00, to lugnet.robotics, lugnet.robotics.rcx)
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| | Opening RCX Code programs in Web Browser gives text
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I don't know if this has already been discovered a dozen times before (I would search to find out, but the text search cgi is down!)... but I just found something cool. If you put a link to any RCX Code program with a .rcx extension in a web browser (...) (25 years ago, 17-Dec-00, to lugnet.robotics, lugnet.robotics.rcx)
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| | Re: Firmware file version?
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Regarding the firmware checksumming, firmdl3 did not do that correctly, nor did it support any of the latest firmware files (0325, 0328), complaining because they were too large. I made the necessary changes to fix these problems. You can grab the (...) (25 years ago, 16-Dec-00, to lugnet.robotics)
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| | Re: Firmware file version?
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(...) I don't know what Dave Baum may or may not have said, but here is the ROM's algorithm for computing the checksum: short offset = 0 byte validstr = 0 short sum = 0 for (addr = 8000; addr < cc00; addr++) sum += byte at addr if (byte at addr == (...) (25 years ago, 16-Dec-00, to lugnet.robotics)
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| | Re: Can the cybermaster tower talk to the Scout
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(...) No. You need a tower from an RCX. Dean -- Coin-Op's For Sale!: (URL) Lego Workshop: (URL) Lego Club: (URL) (25 years ago, 16-Dec-00, to lugnet.robotics)
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