thanks, I swapped values for E0 and E1 and print was successful

however, I did not change any microstepping pins as mentioned. how exactly does this impact the print? better extrusion/control?

My extruder motor does not move manually or otherwise. It would seem it is heat or poor connection at board related.

I swapped E0 wiring with the X motor and it will move without issue. Whereas the X movement is non-responsive on extruder commands .

I'm hoping to flash the firmware and move the wiring from E0 to E1 on the board.

Would I be correct in the following?

pins.h file

ATmega25260 board listing (motherboard = 21)

swapping E0 with E1 at the following groups

#define E1_STEP_PIN 18

#define E1_DIR_PIN 19
#define E1_ENABLE_PIN 38

#define E0_STEP_PIN 40
#define E0_DIR_PIN 41
#define E0_ENABLE_PIN 37

save and load new firmware

thanks