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Old Sep 18, 2002, 10:22 AM
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JBowling's Avatar
Joined Nov 2001
184 Posts
Hard disk motor conversion

Hi All:

I've read the CDROM motor conversion thread with great interest. I'm starting to convert a 9 pole hard disk motor, bigger than the CDR motors. Has anybody else done this? Any reason not to?

Jason
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Old Sep 21, 2002, 05:07 AM
homo ludens modellisticus
Ron van Sommeren's Avatar
near Nijmegen, Netherlands
Joined Feb 2001
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These messages are about 12-pole stator motors built from a hard-disk:

"Fun with a harddisk":
http://groups.yahoo.com/group/lrk-torquemax/message/210
http://groups.yahoo.com/group/lrk-torquemax/message/216

"What to do with an old hard drive":
http://groups.yahoo.com/group/lrk-torquemax/message/317

"More hard drive":
http://groups.yahoo.com/group/lrk-torquemax/message/320

Met vriendelijke groet Ron van Sommeren
lrk homebuilt outrunner e-motor discussion group.
E-fly-in & lrk meet, June 22nd, 2003, Nijmegen, the Netherlands.
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Old Sep 21, 2002, 08:50 AM
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184 Posts
Thanks Ron!

I took apart three disks, and one older one had a very nice motor already equipped with 3 wires. On a whim, I hooked it up to an ESC, and it spun right up - I just need to rewind it to bring the torque and RPM up.

My only dead CDROM was an HP CDRW, which had a 6 pole motor rather than a 9 pole, so I hunted until I found a 9 pole.

Jason
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Old Sep 21, 2002, 10:11 AM
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Ron van Sommeren's Avatar
near Nijmegen, Netherlands
Joined Feb 2001
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A 6-pole stator will work with 4 or 8 magnetpoles.

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