Re: [CAD_CAM_EDM_DRO] Stepper motor connection

On 1/30/2013 3:26 PM, erokc0 wrote:

> I have a need to position two arms that will always be at the same
> angle but are not easy to connect to one drive. I want to use two
> stepper motors, one for each arm. The motor will run a nut on a screw
> no more than three inches total.
>
> Can I connect the motor windings in series given the power supply and
> driver has sufficient voltage and current? Would there be any reason
> they would not step together?
>
> The motors are six wire, unipolar. My driver is bipolar.

Conventional wisdom hold that you need two separate drivers, one for
each motor.
However, as proven by Reprap 3D printers, it is possible to drive two
motors from a single driver, provided the driver provides adequate
amperage.
The motors are wired in parallel to each other.
http://reprap.org/wiki/RAMPS_1.4#Wiring

--


Ron Thompson
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