Alt-BEAM Archive
Message #09071
To: beam@sgiblab.sgi.com
From: "Dennison Bertram" dibst11+@pitt.edu
Date: Tue, 11 Jan 2000 23:06:02 -0500
Subject: [alt-beam] Re: more on motors and video
Gotta step in here again. A few things, the motors you have from the disk
drives, probably are not the pancake motors we are talking about. Pancake
motors, as my experince has been really flat dc motors. The motors from disk
drives typically aren't as unmanagable as DC motors, (usually steppers and
the such) The ones, (especially from something as old as a 5 1/4" drive) is
not likely to be much use to you in your beamings.
Ok, about solarbotics. I'm still a teenager, (not for too much longer
though!) And I know what your talking about. However, having exposure to
surplus kinda spoils you. Well, really spoils you. Motors are typically
1.50. Solarbotics really isn't overpriced. The extra money you pay, is for
the convenience. Normally to get the 'deals' you hear about, people are
scrounging like crazy to find stuff. And then you need minimum orders, and
expensive shipping, and all that Jazz. So it's not so simple. Solarbotics
does a good job. And people do pay the prices. So,
Yep, I've seen cognachrome. Cool system that for sure. Video input just has
so many possiblities.
dennison
>>>
Hey, I've got some of those pancake motors from old 5 1/4" disk drives.
But all the pancake motors I've ever seen are mounted on circuit boards.
Do you have to modify them, or how do you hook up to them.
I agree with Max-even if those motors Solarbotics sells are from
industrial stock, not surplus, $10 is a bit steep for most people,
especially TEENAGERS like myself who are strapped for cash. And the $15
motor is even more over-priced.
But I guess they don't sell in very high volume, so they have to mark
them up more...
Shifting topics:
That camera idea is so cool. And so simple!
Has anyone ever seen the Cognachrome robotic vision system? It's very
complex, and based on a 68332 microprocessor! Granted, it processes
color, but it's amazing what you can do with simple analog circuits, eh?
I've got to try that...
And I bet with an ADC you could use it with traditional mobile robots, as
well.
Jonathan
P.s. Aren't you happy I mentioned Marlin P. Jones, Dennison?
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