Hello everyone. I am using repramp 1.4 board. For the axis I am using stepper driver tb6600, and for the extruder I am using A4988. I am using Marlin firmware. My configuration is double extruder. The problem is when I am going into prepare mode, I can move extruder motor and axes motors separately, but when extruder motor is working I cant move axis motors. Any suggestion where should I look for solution, what may be wrong? In attachment I add my configuration.h file. Thanks in advance.