RE: Hard Drive Motors, RSGs and Stuff

["Basura, Brian" <brian.basura-at-unistudios-dot-com> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

The old disk drive motors Chris mentions would work great but they are a bit
big (90lbs. if my memory and back serves me correctly). The only other
problem is most were 3-phase (more than one tech had a head crash due to the
platters spinning backwards)...

If you want a variable speed RSG then get one of the DC Reel motors from an
old reel-reel computer tape drive. These things run from 4v-24v and have
tons of torque.

Regards,
Brian

-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Monday, July 17, 2000 4:01 PM
To: tesla-at-pupman-dot-com
Subject: Re: Hard Drive Motors, RSGs and Stuff


Original poster: "Christopher Boden" <chrisboden-at-hotmail-dot-com> 

<snip>

If you do a little hunting, try to find an old AS-400 mainframe or something

similar. They have >100LBS hard drives that take up like 8U rack spaces. 
These drives work on 240VAC and the drive motors will spin happily on 110 
and have there own power supply units. We have tinkered with this idea for a

while. With one of the large drives it should work. The plattens are about 
14"dia and have tons of inertial mass. The motors are VERY powerfull and 
maintain a rock-solid RPM and will live just about forever.

Christopher A. Boden Geek#1
President / Founder
The Geek Group
www.geekgroup-dot-org
Because the Geek shall inherit the Earth!

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