Alt-BEAM Archive
Message #07793
To: beam@sgiblab.sgi.com
From: Thomas Pilgaard Nielsen ascii@hum.auc.dk
Date: Wed, 17 Nov 1999 19:36:22 +0100
Subject: [alt-beam] Re: More PCB etching
Timothy Flytcher wrote:
>
> > > That depens on how steady your hands are.
> > > If i wants to make really fine traces then i cover
> > > the complete area with an etch resistance pen and
> > > then i use a knife to scratch or cut paths in the
> > > cover. This way i can make very fine traces. Example: i can make 3 lines
> > > between two IC pins this way.
> >
> >Uuh - ok, I reckon that requies some skill (ie. skills i !don't! have)
>
> I think that you are thinking back-words... this is really the easiest way!!
> (did it in high school as a freshman)
Yeah, I know the method of drawing with the pen and all - though I never
tried it 'backwards'. However, would you happen to have any experience
in laserprinting a cirquit onto transparencies and then iron them onto
the copper? At first glance it seems to be a pretty good solution too.
> The Idea is not to map out the traces but the gaps... If you can dunk a
> donut you can do this :)
Hows about dunkin' danish? :)
Cheers,
Thomas, Denmark
> Timothy...
>
> ______________________________________________________
>
7794 Wed, 17 Nov 1999 20:38:25 CET [alt-beam] Re: absorbpsion circuit or something beam@sgiblab.sgi.com "johannes urke" hey ill try hooking a coil to an fled se ill tell you if it worked
later.
if anyone else is interested try it yourself cuz making a solarengine is
kinda hard for me.
i haveve only made one working one and i tried putting it in a frame of lego
and i thought i could cover it in
epoxy (not smart) it covered the motor and now it is in the yunkyard.
i managed to build a photopopper and i cant make an solarengine......
wierd.
oh and all you other guys replying to this message about robots feeding on
humans, man that is sooooo creepy.
imagine that the bot starts feeding on you when you come close to it.....
brrr.
oh yeah simon my name is not johans but johannes pronounced "yourhighness"
>From: Simon
>Reply-To: beam@sgiblab.sgi.com
>To: beam@sgiblab.sgi.com
>Subject: Re: absorbpsion circuit or something
>Date: Wed, 17 Nov 1999 18:00:11 +0100
>
>Richard Caudle wrote:
>
> > I've had an idea cooking in my little bit of brain for about 10 years or
> > so...Walkers that live in the area between the false ceiling of office
> > buildings and the true ceiling. I have a voltage detector that
>indicates
> > presence of 50V about 8 to 10 inches from the ends of flourescant tubes
> > (lamps). I figured that there was some way to use that energy to
>trickle
> > charge the 'bots during the day so that they could perform security and
> > surveillance during the night (when the lights are off). Parasitic
>feeding
> > in an abstract sense.
> >
> > Richard
>
>Kind of creepy but very smart ! That's exactly the kind of thing I was
>thinking about. There are a lot of (more or less) artificial energy sources
>in
>our society. Lets find a way to use them.
>
>About you wrote Jonah's:
>yeah i know but there is still one problem.
>the magnetic waves it is supposed to feed on has to have the same wave
>length as the capacitor.......
>it stood in a book and im not sure.
>hey what if i use an variable capacitor like an radio tuner...........
>
>I believe you are talking about the fact that for electromagnetic reception
>the LC circuit has to be tuned to the correct frequency. That is correct
>but I
>don't think you have to use the same cap to run the motor as the one you
>use
>for reception.
>
>Simon, Belgium.
>
>--
>Simon Vandemoortele
>4th year Civil Engineering (Electronics)
>Home: 21 Generaal Lotzstr., 1180 Brussel | 02/344.58.70
>Kot: 80 Kerspelstr., 3001 Heverlee | 016/40.26.97
>
>
>
______________________________________________________
7795 Wed, 17 Nov 1999 21:33:36 +0100 [alt-beam] Re: absorbpsion circuit or something beam@sgiblab.sgi.com Simon johannes urke wrote:
> hey ill try hooking a coil to an fled se ill tell you if it worked
> later.
> if anyone else is interested try it yourself cuz making a solarengine is
> kinda hard for me.
> i haveve only made one working one and i tried putting it in a frame of lego
> and i thought i could cover it in
> epoxy (not smart) it covered the motor and now it is in the yunkyard.
> i managed to build a photopopper and i cant make an solarengine......
> wierd.
> oh and all you other guys replying to this message about robots feeding on
> humans, man that is sooooo creepy.
> imagine that the bot starts feeding on you when you come close to it.....
> brrr.
> oh yeah simon my name is not johans but johannes pronounced "yourhighness"
>
Ok I got that Your Highness.
PS: I consider the talk about induction-energized bots brainstorming. If it's
feasible it is probably very difficult. You might consider trying something
easier first.
(No offense; I'm only a beginner myself.)
Simon.
--
Simon Vandemoortele
4th year Civil Engineering (Electronics)
Home: 21 Generaal Lotzstr., 1180 Brussel | 02/344.58.70
Kot: 80 Kerspelstr., 3001 Heverlee | 016/40.26.97
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