Broken stepper driver

A project log for KOSSEL XXL

I wanted to build a large printer capable of printing PLA or ABS to a high quality, speed is also of major importance. (Mini Kossel based)

Aaron Dominic RichmondAaron Dominic Richmond 05/18/2016 at 14:410 Comments

After fitting the belts i tested each axis to find that the Z stepper motor was only switching one set of coils on, i searched the PCB for dry joints but had no luck.

Option 1 is to buy another driver and re flow it onto the PCB

Option 2 is to buy a new MKS base

Option 3 is to utilize the second extruder driver (i do not want to go for dual extrusion anyways), i switched the pin around in the firmware. The file for the MKS base links the standard ramps file "pins_RAMPS_14.h", the result was....

#define Z_STEP_PIN 36

#define Z_DIR_PIN 34

#define Z_ENABLE_PIN 30

#define E1_STEP_PIN 46

#define E1_DIR_PIN 48

#define E1_ENABLE_PIN 62

I may still buy another A4988 driver and replace the broken one.