My DIY CNC project - StepperMotors/Stepper drivers.

General CNC CNC Routers
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My DIY CNC project - StepperMotors/Stepper drivers.

I`m going to use 4 x DM542A stepper drivers (2 on the Y-axis)

Found these stepper motor that seems to be ok?

I consider 36V or 48V power for the stepper drivers - Should I use 48V?

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48v will give you faster rapids

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Higher voltage, depending on the driver, may increase mid band resonance. But you can compensate with dampers, microstepping modes, and lower drive current.

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So I should use 36V ?
Is it ok to use 4.2A stepper motors (max for the stepper drivers http://fablab.web-5.org/lib/exe/fetch.php/documentation:drivers_mpp:dm542a-manuel-20130925.pdf) or should I wind motors wit lower Ampere value?

I found this sample configuration - the same steppers, 4.2A max stepper driver and 48V PSU https://m.aliexpress.com/item-desc/32496594955.html
https://m.aliexpress.com/item-desc/32496594955.html

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DM542:

Input voltage 18-50VDC
Output current 1.0A～4.2A

Is it hen safe to use a 48V power and 4.2A stepper motors (close to the max values)?
Or should I use a 36V power and ～3.5A motors?

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Mine are working at 48V for three years now. Not sure whether that is a rare occurrence or the usual experience.

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Do you use the same DM542A stepper drivers? 4.2A on the steppers?

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Yes I do. 3A on my steppers.

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Thank you

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My plan:
4 x DM542A
4 x http://allegro.pl/silnik-krokowy-1-9nm-2-1a-lub-4-2a-8-p-cnc-nowy-i6604392721.html (in Bipolar (Parallel) mode (4.2A)

1 x 40V 400W Linear Power supply (made for CNC use)

RE-Arm controller + Ethernet + CNC shield

Surface Pro 2 computer