Re: fickle y-axis

Hi Peter,
Yes, all 100 poles are activated; they are all wound with the
same wire.
Best bet would be to find a cheap (or broken) stepper motor and
open it up and take it apart (which can ruin it). On a small motor,
you will see the rotor has two different sections, one slightly
offset from the other (A and B). You can also 'see' the 'poles' on
the rotor.

Jeff
http://www.xylotex.com

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "forumtvm" <forumtvm@y...>
wrote:

> Hi,
>
> Just one small question. In a stepper motor with 100 poles for

phase

> A and 100 poles for phase B, when say phase A is activated, does

all

> the 100 poles get magnetised. I suspect this is the key I need to
> grasp before I get to understand why my y-axis got to behave so
> erratically when one wire got loose/disconnected.
>
> Peter