I curently have a Chinese 6040, and am building a 1500x1500 with a 1200x1200 work area.

I will be using 25mm rails and bearings and 1605 ballscrews.

I have ordered:
3x 1500mm SFU1605 ball screw+BK12/BF12+DSG16H+Coup
4x 1500mm HGR25
8x HGH25

1x 400mm SFU1605 ball screw+BK12/BF12+DSG16H+Coup
2x 400mm HGR25
4x HGH25

I have never used Closed Loop so am asking you for some advice, if you have other sugestions let me know.
I am ordering from these guys on Aliexpress.
https://www.aliexpress.com/store/gro...75167485HpKSMm

Q1. Nema 23 or 34?

This is the NEMA23
57EH83A4001 Hybrid Step-servo CL57 Driver kit 57X83mm Nema23 Closed Loop 4.0A 2.6N.M 57CME26 Servo motor Stepper Motor for CNC
https://www.aliexpress.com/store/gro...75167485HpKSMm

This is the Nema34 in a 4 kit
3 axis cnc kit nema 34 closed loop Servo Stepper Motor 8N + Driver CL86 48V Power Supply+ MACH3 Interface board cable
https://www.aliexpress.com/item/1005...3f1862ec5hlVVZ

Q2. any opinion ong the Drivers used?