Can I mix BIGTREETECH S42B closed loop stepper drivers on the MKS Gen L controller board with other drivers?
Are the pins in the same position? Would mixing work?
As far as I know, that should work. You need to define the correctly used drivers in your configuration. For the closed loop drivers, the board (via a break out board) has to provide the pulses to the motor driver (on the back of the stepper). If you use such a closed loop driver you need to disable the stepper driver type in your Configuration.h
file for those you plan to insert a closed loop driver. The firmware will assume the A4988 driver is being used:
Now you need to set high enough values for the MAXIMUM_STEPPER_RATE
(150000):
and the MINIMUM_STEPPER_PULSE
(3):
in Marlin/src/inc/Conditionals_adv.h
under HAS_DRIVER(4988)
.