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 Robotics / 19658
Subject: 
Re: "real" LEGO Hovercraft ? (with/without batteries/RCX "onboard")
Newsgroups: 
lugnet.robotics
Date: 
Fri, 29 Nov 2002 16:09:29 GMT
Viewed: 
3304 times
  
In lugnet.robotics, Steve Baker <sjbaker1@airmail.net> writes:
Jim Choate wrote:

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.

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 and cellphones.  I can't imagine those
being very powerful.  Their main design goal was small size and low
battery consumption.

---------------------------- Steve Baker -------------------------
HomeEmail: <sjbaker1@airmail.net>    WorkEmail: <sjbaker@link.com>
HomePage : http://web2.airmail.net/sjbaker1
Projects : http://plib.sf.net    http://tuxaqfh.sf.net
           http://tuxkart.sf.net http://prettypoly.sf.net

After reading thru most of this thread, and trying to work out in my mind as
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 something together.
If it doesn't work, oh well.  I am curious though, after reading these many
good ideas.

The only thing I have to formulate in my mind is how to get an enclosure
around the znap prop so that air doesn't escape up around it.

I'll see what transpires tonite!

Dave K


Subject: 
RE: "real" LEGO Hovercraft ? (with/without batteries/RCX "onboard")
Newsgroups: 
lugnet.robotics
Date: 
Fri, 29 Nov 2002 16:26:01 GMT
Original-From: 
Marco Correia <{marco@}Spamcake{soporcel.pt}>
Reply-To: 
<marco@#StopSpam#soporcel.pt>
Viewed: 
3339 times
  
Hi Dave :)

After reading thru most of this thread, and trying to work
out in my mind as to how to do it...

Cool :)

The only thing I have to formulate in my mind is how to get
an enclosure
around the znap prop so that air doesn't escape up around it.

I'm thinking of a thin "plastic film" usually used to wrap around food to
keep it fresh and air tight (I don't know how's it called in english).

mc.


Subject: 
Re: "real" LEGO Hovercraft ? (with/without batteries/RCX "onboard")
Newsgroups: 
lugnet.robotics
Date: 
Fri, 29 Nov 2002 16:45:12 GMT
Viewed: 
3360 times
  
In lugnet.robotics, Marco Correia writes:
Hi Dave :)

After reading thru most of this thread, and trying to work
out in my mind as to how to do it...

Cool :)

The only thing I have to formulate in my mind is how to get
an enclosure
around the znap prop so that air doesn't escape up around it.

I'm thinking of a thin "plastic film" usually used to wrap around food to
keep it fresh and air tight (I don't know how's it called in english).

mc.

I was thinking of more a complete LEGO solution--the only thing non-LEGO in
my plans is the skirt, which probably will be a bicycle innertube.

What I plan first is to get hte motor, the fan and turn it on and see if I
can dry my hair with it ;)

Secondly, set up a platform, possibly 4 32 x 32 baseplates, with 6x8 plates
joining them together at the edges, hopefully leaving a 6x6 hole right in
the middle where I'll mount the prop and motor and see if it can get enuf
air blown under the plates to at least move across a vinyl floor if pushed.

At least that's as far as I got in my head right now.

Maybe the castle arches have the same diameter as the Znap fan--we shall see.

Dave K


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