Re: [CAD_CAM_EDM_DRO] can six wire bipolar be wired parallel?

In a message dated 8/16/2004 12:57:33 PM Central Standard Time,
alalonde@... writes:
I'd sure appreciate it if anyone could answer for me if a six wire
bipolar stepper can be wired for parallel. Thanks.
Rick: ONLY if there were some way to open the "end" of the motor where all
the winding-wires are soldered together, and the two soldered to the
single-wire "center-taps" were then brought out, separately. Then, you'd have an
"eight-wire" motor. If opening the motor would result in pulling off the
shaft-bearing on one end (as it would with size-34 and smaller), NO, as that would spoil
the motor by allowing the armature to smack into the stator-iron, which would
do TWO baddies: 1)it would partially UNmagnetize both; and, 2)it would make
"magnetic crumbs" chip off and jamb between the amazingly-close armature and
stator, causing jamb-ups that are worse than havin' wet rice sprinkled up your
nose while you are hangin' from your ankles.

Cause, the two "halves" of a center-tapped phase are "opposite polarity", so,
were the "Center Tap" considered ONE lead, and the other two were connected
to make the SECOND lead, the resulting magnetism from applying DC to those-two
would do nothing. (except draw current that was wasted, causing no motion;
only heat.)

Jan Rowland


[Non-text portions of this message have been removed]