 | | Re: "real" LEGO Hovercraft ? (with/without batteries/RCX "onboard")
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(...) Bingo. (...) Take a look at some of these micro motors that are being used in the new mini-RC cars. You can buy a whole car kit, radio, and controller for about $75US. (...) A helo tail rotor is your best bet. Wood or a composite is your best (...) (23 years ago, 29-Nov-02, to lugnet.robotics)
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| | Re: "real" LEGO Hovercraft ? (with/without batteries/RCX "onboard")
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(...) It's not one formula. The first hurdle is to balance the force of gravity. F=ma m is the weight of the hovercract assembly. a is the -negative- acceleration due to gravity. F is the total force the fan must provide. Then you've got to figure (...) (23 years ago, 29-Nov-02, to lugnet.robotics)
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| | Re: "real" LEGO Hovercraft ? (with/without batteries/RCX "onboard")
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hi! so i did tests and my discoveries are sad 1. pure turbine has to be placed in some kind of tunnel but not exactly funnel the tunnel has to be as a part of ball (sphere) without hats :)) at the upper and the lower side because the stream of air (...) (23 years ago, 29-Nov-02, to lugnet.robotics)
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| | Re: legOS 0.2.6 installation problems - a better way?
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(...) Thanks Max, I have now got the latest version of BrickOS and will try to reinstall cygwin. Thanks for your help. John. (23 years ago, 29-Nov-02, to lugnet.robotics.rcx.legos)
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| | Re: legOS 0.2.6 installation problems - a better way?
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(...) Weird. Sounds like your install of Cygwin is corrupt. Max. (23 years ago, 28-Nov-02, to lugnet.robotics.rcx.legos)
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| | Re: legOS 0.2.6 installation problems - a better way?
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(...) Thanks Max, in running the instructions mentioned above, I entered the following in a bash shell, with the following responses. Sorry about the volume of this but it is all there. Any answers would be appreciated. $ cd /legos-0.2.6 $ make (...) (23 years ago, 28-Nov-02, to lugnet.robotics.rcx.legos)
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| | RE: "real" LEGO Hovercraft ? (with/without batteries/RCX "onboard")
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(...) LOL! No ! I myself am doing tests with a non-LEGO one also. it would be nice if it could use a LEGO motor... and material usually found in every home, so anyone could build one... if we ever find a way to make it possible. (...) Yep. Do you (...) (23 years ago, 28-Nov-02, to lugnet.robotics)
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| | Re: "real" LEGO Hovercraft ? (with/without batteries/RCX "onboard")
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if i will use non lego or znap propeler will you disqualificate me? :) be cause IMO some kind of turbine is needed here i'll try to do it tonight (23 years ago, 28-Nov-02, to lugnet.robotics)
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| | Re: Motor Control Register (0xf000)
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The lugnet registration takes forever :) After reading this post a light went on in my head. A few weeks ago I wrote a multi-threaded program for the RCX (about 7 threads, each running an endless loop). When I added one more thread, the robot (...) (23 years ago, 27-Nov-02, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | RE: "real" LEGO Hovercraft ? (with/without batteries/RCX "onboard")
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pixel wrote (...) yup, I confirmed that yesterday :/ though now I have a nice ZNAP micro ventilator, for the hot summer, ehehe now... let's see what happens tonight, with the 9v ungeared LEGO motor and a non-LEGO propeller together with an "air (...) (23 years ago, 28-Nov-02, to lugnet.robotics)
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| | Re: "real" LEGO Hovercraft ? (with/without batteries/RCX "onboard")
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no! cpu fan doesn't work in this aplication even if you increase voltage 2 times pixel "Marco Correia" <lego-robotics@crynwr.com> wrote in message news:000a01c2963b$e3...rcel.pt... (...) maybe... (...) also. (...) (23 years ago, 28-Nov-02, to lugnet.robotics)
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| | Re: legOS 0.2.6 installation problems - a better way?
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(...) Yes, the install of LegOS/BrickOS is quite difficult for those of us who have never used Unix/Linix. Once you've downloaded the cygwin tools, I believe you can change versions of LegOS/BrickOS without much problem. You don't need to DL more (...) (23 years ago, 28-Nov-02, to lugnet.robotics.rcx.legos)
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| | Re: legOS 0.2.6 installation problems - a better way?
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(...) Specifics would be helpful. Max. (23 years ago, 28-Nov-02, to lugnet.robotics.rcx.legos)
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| | RE: "real" LEGO Hovercraft ? (with/without batteries/RCX "onboard")
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While doing my initial searches to check if this could be done, I found this: (URL) a look at this: "What is the coolest model you have ever built? Apart from the destroyer I mentioned above, I think that the coolest models I have made are the (...) (23 years ago, 28-Nov-02, to lugnet.robotics, lugnet.lego.direct)
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| | Re: Line following algorithms
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(...) *smacks my forehead with my palm* But of course! Best, /Tobbe (URL) SPAM when e-mailing) (23 years ago, 28-Nov-02, to lugnet.robotics)
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| | legOS 0.2.6 installation problems - a better way?
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I have been trying Set up LegOS for some time now. My first attempt using winlegOS was installed but I then found out then that it could not communicate via my usb tower. I then decided to go for the full installation of Cygwin and legos0.2.6 and (...) (23 years ago, 28-Nov-02, to lugnet.robotics.rcx.legos)
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| | Re: Line following algorithms
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(...) Mission well nigh impossible, I think. (...) One light ensor is ok for starters. It's not difficult to get an additional light sensor. Most of us think the RIS should have come with 2 light sensors in the first place. (...) Have a look at some (...) (23 years ago, 28-Nov-02, to lugnet.robotics)
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| | Re: RIS 1.5 $99
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If you ordered one of these from KB-Toys.com and they sent you the French version. Firstly, call LEGO and have them send you the English instructions / CD-ROM, if you don't already have english version. Second, call KB-Toys and complain. First of (...) (23 years ago, 28-Nov-02, to lugnet.robotics)
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| | Re: Polling sensor values with wait_event
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Thomas, I had a thought about this situation. You could write a function that sets a flag when the event is triggered, do nothing otherwise. You could call this function from within each of the tasks you write (at a somewhat high frequency ... say (...) (23 years ago, 28-Nov-02, to lugnet.robotics.rcx.legos)
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| | Re: problem building gcc for brickOS-02.6.09 installation under windows xp
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Marko, <snip> (...) You can simply decompress the files from the archive at: (URL) are already built and nearly ready to use. Once they are decompressed, I believe you just run the BrickOS configure script; then you should be ready to go. // Joe (23 years ago, 28-Nov-02, to lugnet.robotics.rcx.legos)
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