Quote:
Originally Posted by aklego
Hi All,
The motor was still running but they appear to be installed incorrectly. The curvature on the contact surface of the brushes is rotated 90° wrt the curvature on the commutator and that seems rather odd. .
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That odd rotation on the brushes has been around for a while. I noticed it several years back on our first motor that failed, and I thought the same thing as you.
I've never heard any other comment on it. I just assumed this was one case where logic didn't match actual application.
Looks like some more research is required.
Phil.
__________________
Phil Malone
Garrett Engineering And Robotics Society (GEARS) founder.
http://www.GEARSinc.org
FRC1629 Mentor, FTC2818 Coach, FTC4240 Mentor, FLL NeXTGEN Mentor