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Brass Tilde | 2 Oct 2001 13:50
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Re: 12V to a lego 9 v motor

> And one of my motors is slightly slower. Is this normal or should i look
for
> new motors.It goes 15 cm to the right every meter or so.

I can't answer your electrical questions, but as to this one, yes it is
normal.

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Did you check the web site first?: http://www.crynwr.com/lego-robotics
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Brass Tilde | 1 Oct 2001 16:51
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Re: 8 legged walker

> > http://www.brickshelf.com/cgi-bin/gallery.cgi?f=40354
>
> Neat! Looks like an tank with feet!

Thanks!  I used the yellow lift arms because they were the right length, and
because the black beams of the same length were already used on something
else.  I didn't realize how it was going to look until I had it all together
and ran it over the table once.  It turned out pretty nice, looking more
like real feet than I imagined.

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Did you check the web site first?: http://www.crynwr.com/lego-robotics
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Brass Tilde | 1 Oct 2001 17:01
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Re: 8 legged walker

> Walkers are really tough - yours is very fun to watch. Nice job.

Thanks, it was fun to build.  Fortunately, *this* walker wasn't that tough.
It doesn't have balance or coordination issues.  The toughest part was
getting the feet to line up so they alternated.  There's no programming in
place, not even a bumper; it just moves in a straight line.  I hesitate to
call it a "robot" at all.

I am a programmer by trade, so the toughest part for me is not the
programming aspect (though I haven't done much in guidance or embedded
systems), but in getting the parts to work together properly.  To illustrate
how mechanically naive I am, I just this weekend learned how and why it is
that a differential does what it does.  Mostly thanks to the book "Building
Robots with Lego Mindstorms" by Mario Ferrari, Ralph Hempel and Giulio
Ferrari.  For any who are as mechanically challenged as I am, or just want
clear explanations of some of the macro parts one can construct from LEGO
parts, I highly recommend this book.  It concentrates on building techniques
and how to construct mechanics that work, not so much on programming.

Brass

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Did you check the web site first?: http://www.crynwr.com/lego-robotics
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Gmane