 | | Re: "real" LEGO Hovercraft ? (with/without batteries/RCX "onboard")
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(...) to how to do it... After work I'm going home and rip apart my modified 8448, take the 8475 motors out of it, and throw on a znap prop on those motors and see what the air flow's like. Putting my current project on hold, I'll try and whip (...) (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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(...) Non-lego motor -- for lower weight and higher RPM. Non-lego skirt -- because there isn't anything in Lego that can do that. Non-lego propellor -- because the Lego ones are crap Non-lego decking -- for lightness and rigidity. ...hmmm it's (...) (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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(...) The micro cars (the ones about an inch long) are down to $30 - including two channel RC and battery charger. However, the motors aren't all that powerful. I read somewhere that the motors they are using are from the 'vibrators' inside pagers (...) (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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(...) You know that the pressure of the air inside the skirt multiplied by the area of the ground enclosed by the skirt has to equal the weight of the hovercraft. If the skirt made a perfect leak-proof seal against the ground, and there were no (...) (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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but wher is the fun? my skirt has been done as a cut of the sphere the same shapa as the tunnel has to hav (i think) so it was a middle part of sphere without upper and lower domes that's why i said "a little bit hard to do it" :)) you said CD is (...) (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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(...) 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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