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(...) did you remove the "nospam_", well now it's real mailto:s.mientki@mailbox.kun.nl Stef (23 years ago, 2-Dec-02, to lugnet.technic, lugnet.robotics)
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| | Re: hovercraft
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Pure Lego propellors: I just tried using vehicle windshields as rotor blades. They actually work quite well. Their slope is extremely steep - but I guess that's what you want for small diameter propellors (ie a smaller hole in the top of your (...) (23 years ago, 2-Dec-02, to lugnet.robotics)
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| | Re: hovercraft
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For people who are interested in chasing this goal, it would be interesting if people would post the weight (or mass - if you have a handy massometer :-) of your contraption - along with it's 'floor area' and the total 'skirt perimeter' length. (...) (23 years ago, 2-Dec-02, to lugnet.robotics)
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| | Re: Line following algorithms
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(...) Well I suppose this statement applies to me since I have organized an event that limits the robots to a single light sensor. However, in my defense, I must say that the intent behind the rule was to make the game more fair for all competitors. (...) (23 years ago, 2-Dec-02, to lugnet.robotics)
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| | Re: hovercraft
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(...) <snip> (...) Very nicely done! I tried the 8475 motors with the ZNAP props and it didn't generate a good enough force of air. Back to the drawing board! Keep up the great work! Dave K (23 years ago, 2-Dec-02, to lugnet.technic, lugnet.robotics)
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| | Re: hovercraft
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(...) wait for movies i need some room for them but stef mientki is not available (undeliverable post :(( (...) yours. don't do too long skirt it drags on the surface and make a lot of resistance (...) the skirt has to be bent underneath the body it (...) (23 years ago, 2-Dec-02, to lugnet.technic, lugnet.robotics)
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| | Re: RIS 1.5 & XP?
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Rob, Thanks for your help! Scott A (...) (23 years ago, 2-Dec-02, to lugnet.robotics)
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| | RE: RIS 1.5 & XP?
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Yes, it will. RIS 1.0 will also work on XP. Before installing any of the LEGO software on XP (or 2000, for that matter) I highly suggest downloading the latest versions of Quicktime, DirectX, and RealPlayer. The versions on the LEGO software were (...) (23 years ago, 2-Dec-02, to lugnet.robotics)
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| | RE: hovercraft
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Ok, just saw the pics. ...and you did it with a LEGO propeller ! WOW! :) (...) I think I'll have to make a much more flexible and long "skirt" like yours. Mine was half short and more rigid, so that's why it leaks more air. I'm also trying first to (...) (23 years ago, 2-Dec-02, to lugnet.technic, lugnet.robotics)
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| | Re: hovercraft
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(...) i'll check but i'm almost sure about that (...) that's why i tied more voltage :) (...) it's set on my site now thanx for suggestion pix (23 years ago, 2-Dec-02, to lugnet.robotics)
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| | Re: hovercraft
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(...) i've got it on my disk so tell me where to put it :)) (...) new ver is much bigger but according to steve's words biger hovercraft should need less pressure so maybe 9V will be enough (...) my pleasure :) it's the effect of our talk here so (...) (23 years ago, 2-Dec-02, to lugnet.technic, lugnet.robotics)
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| | RE: hovercraft
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eheh :) so finally someone here made it ! Cool :) (...) That'd be cool to see. Please, tell us the final URL when you have it :) (...) I'm still trying with 9V, eh :) (...) I spent a couple of hours this past friday night, testing. I'll have to (...) (23 years ago, 2-Dec-02, to lugnet.technic, lugnet.robotics)
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| | RIS 1.5 & XP?
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Will it work? Scott A (23 years ago, 2-Dec-02, to lugnet.robotics)
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| | Re: RCX Tank Base
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(...) Why didn't you use a adder/subtracter? (...) If you mount the RCX and motors further back from the hand it will act as conter weight which should allow more lift load. (...) If you remove the 1x4 plates on the treads there will be less carpet (...) (23 years ago, 2-Dec-02, to lugnet.robotics)
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| | Re: C Compiler for Windows 98
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One thing I can tell you is that you need to add c:\cygwin\bin to your path (autoexec.bat) Also, when you try to download a program, instead of just using util/dll try ./util/dll I'm sure John will have other suggestions. You really need to get (...) (23 years ago, 2-Dec-02, to lugnet.robotics.rcx.legos)
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| | Re: C Compiler for Windows 98
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Thanks for the help! Sorry, but I have been out of town for Turkey Day and haven't had a chance to give it a try. Now I'm back, and the hair (which I've pulled out trying to get this thing to work) is starting to grow back and I would really like to (...) (23 years ago, 2-Dec-02, to lugnet.robotics.rcx.legos)
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| | Re: Cygwin under Virtual PC on OS X
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David Chen <nospam-dcchen@pacbe...et-nospam> wrote in message news:nospam-dcchen-F...net.com... (...) David, What steps or instructions are you following to build the cross compiler on OS X? And from what source are you getting the cross compiler (...) (23 years ago, 2-Dec-02, to lugnet.robotics.rcx.legos)
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| | Re: Motor Control Register (0xf000) and Memory Space 0xFDB0-0xFD7F
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This note is of interest to people who build their own RCX firmware. It provides some additiional insight to the recent post concerning dual use of upper memory range and the motor control register. There's a trade-off between real time performance (...) (23 years ago, 1-Dec-02, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | Re: Linker crashing
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(...) Known problem. Search this newsgroup. Last known working version: binutils-2.12. I've been fiddling with this recently, and believe it to be caused by something writing outside a malloced block, and trashing malloc's control information. (...) (23 years ago, 1-Dec-02, to lugnet.robotics.rcx.legos)
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| | Linker crashing
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I recently built binutils 2.13 for h8300-hitachi-hms target (default configuration otherwise) under Mandrake-Linux 9.0. When I use ld to generate an S-record file, it crashes ("Segmentation fault"), but still produces valid output. However, this (...) (23 years ago, 1-Dec-02, to lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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