Alt-BEAM Archive

Message #09971



To: beam@sgiblab.sgi.com
From: StickG@aol.com
Date: Wed, 9 Feb 2000 18:31:21 EST
Subject: [alt-beam] walker phototropism


I just got some help from Mark T. on phototropism, and he sent me some
info I don't quite understand, so I thought perhaps you could take a whack at
explaining what he means to me. Mark T. wrote:
"Just take a few photodiodes with resistors in series and introduce them
across the coupling resistors of your robot. Depending on the diodes, how
they are pointing, and how your robot's mechanics are arranged, you can
figure out how to give your critter eyes."
I am trying to build a two motor bicore phototropic walker (eventually
with reverser). Can please explain what Mr. T mean's (and think 'see spot
run' language, I am really not an engineer). Any help would be appreciated.
thanks,
stick



9972 Thu, 10 Feb 2000 10:37:49 +1100 [alt-beam] Re: aggravating little pager motors.. beam@sgiblab.sgi.com Elmo Hi there WIlliam

Just stick the weight itself in a vice (not the motor, just the weight) and
tighten the vice until the weight explodes. Its very brittle metal and will
crack before it distorts. No harm to the shaft or motor, no special tools
needed, just wear some eye protection from the flying bit of debris.

Try it, its my preffered method to remove the weights.

Elmo


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