RE: [CAD_CAM_EDM_DRO] Re: Why do stepper motors lose their magnetism when disassembled?
Posted by
Alan Rothenbush
on 2008-12-13 11:28:58 UTC
> Seems odd that they would demagnetize so easily. Can't argueI'll happily swap you for one of mine taken apart in a moment of
> with fact but I have successfully taken a stepper apart and
> am currently using it without any noticeable degradation (I
> have two other identical motors in the machine so comparison
> is easy).
curiosity. It still steps, but with NOTICEABLY less torque and
gets CONSIDERABLY hotter doing it.
I'll also throw in an old mag chuck (eBay madness) that was SEIZED
solid in the "on" position. A week in a bucket of solvent didn't
help, so apart it came. Cleaned the solidified .. grease, I assume ..
lubed a bit, reassembled and it's now permanently in the "off"
position.
Apparently, everyone except me knew this would be the result, for the
same reason steppers fail when disassembled .. something about breaking
the magnetic field.
Alan
Discussion Thread
Alan Rothenbush
2008-12-13 11:28:58 UTC
RE: [CAD_CAM_EDM_DRO] Re: Why do stepper motors lose their magnetism when disassembled?
gcode fi (hanermo)
2008-12-13 12:22:40 UTC
Re: [CAD_CAM_EDM_DRO] Re: Why do stepper motors lose their magnetism when disassembled? and a dc treadmill motor ?
Leslie Newell
2008-12-13 13:28:40 UTC
Re: [CAD_CAM_EDM_DRO] Re: Why do stepper motors lose their magnetism when disassembled? and a dc treadmill motor ?
John Dammeyer
2008-12-13 16:34:25 UTC
RE: [CAD_CAM_EDM_DRO] Re: Why do stepper motors lose their magnetism when disassembled?
William Bright
2008-12-13 21:51:15 UTC
Re: Why do stepper motors lose their magnetism when disassembled?
andrey@e...
2008-12-14 16:04:31 UTC
RE: [CAD_CAM_EDM_DRO] Re: Why do stepper motors lose their magnetism when disassembled?
optics22000
2008-12-14 19:35:12 UTC
Re: Why do stepper motors lose their magnetism when disassembled?
David G. LeVine
2008-12-26 19:54:23 UTC
Re: [CAD_CAM_EDM_DRO] Re: Why do stepper motors lose their magnetism when disassembled? and a dc treadmill motor ?
danmauch
2008-12-27 06:59:34 UTC
Re: Why do stepper motors lose their magnetism when disassembled? and a dc treadmill motor ?
David Speck
2008-12-27 08:09:03 UTC
Re: [CAD_CAM_EDM_DRO] Re: Why do stepper motors lose their magnetism when disassembled? and a dc treadmill motor ?
JCullins
2008-12-27 08:45:40 UTC
RE: [CAD_CAM_EDM_DRO] Re: Why do stepper motors lose their magnetism when disassembled? and a dc treadmill motor ?
danmauch
2008-12-27 08:59:25 UTC
Re: Why do stepper motors lose their magnetism when disassembled? and a dc treadmill motor ?
Dave Fisher
2008-12-27 18:09:37 UTC
RE: [CAD_CAM_EDM_DRO] Re: Why do stepper motors lose their magnetism when disassembled? and a dc treadmill motor ?