RE: [CAD_CAM_EDM_DRO] servo motor

From my use of many types of DC motor - Regular DC motors
will perform just as well as motors speced as 'Servo Motors'

Mechanical construction of Servo Motors is often better and
they often use more than 2 brushes to get more current to the
armature. LOTS of good surplus DC motors from main frame tape drives or
avaialable on the net - these perform very well

Rgds

Dave Fisher UK


-----Original Message-----
From: afogassa [mailto:afogassa@...]
Sent: 15 June 2004 18:45
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] servo motor


Hi All,
Regular dc motors have straight iron core, while all the servo
motors I've (maybe not enough) have the iron core plaates set at an
agle, I think the reason for that is to help on the iron core
transition when coming in/out of the magnetic field right? thus
making positionig smoother than a regular dc motor with straight iron
core plates.
I'm wondering if a regular dc motor can be smooth as a servo motor.



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