Due + RADDS @ DIY core XY und nur Ärger

#define HOMING_FEEDRATE_Z 20 //changed

#define MIN_HARDWARE_ENDSTOP_X true //changed
#define MIN_HARDWARE_ENDSTOP_Y true //changed
#define MIN_HARDWARE_ENDSTOP_Z true //changed
#define MAX_HARDWARE_ENDSTOP_X true //changed
#define MAX_HARDWARE_ENDSTOP_Y true //changed
#define MAX_HARDWARE_ENDSTOP_Z true //changed

#define EXT0_MAX_START_FEEDRATE 40

#define EXT0_EXTRUDER_COOLER_PIN -2 //changed, before: -1

// ############# Heated bed configuration ########################

/** \brief Set true if you have a heated bed conected to your board, false if not */
#define HAVE_HEATED_BED true

#define HEATED_BED_MAX_TEMP 120
/** Skip M190 wait, if heated bed is already within x degrees. Fixed numbers only, 0 = off. */
#define SKIP_M190_IF_WITHIN 5

// Select type of your heated bed. It's the same as for EXT0_TEMPSENSOR_TYPE
// set to 0 if you don't have a heated bed
#define HEATED_BED_SENSOR_TYPE 1
/** Analog pin of analog sensor to read temperature of heated bed.  */
#define HEATED_BED_SENSOR_PIN TEMP_4_PIN
/** \brief Pin to enable heater for bed. */
#define HEATED_BED_HEATER_PIN HEATER_1_PIN
// How often the temperature of the heated bed is set (msec)
#define HEATED_BED_SET_INTERVAL 5000