#define INVERT_Z_DIR 0

#define CONFIGURATION_H

#define SDSS         53

#define Z_HOME_DIR -1

#define X_ENABLE_ON 0

#define HEATER_0_PIN       13 

#define UI_DISPLAY_ENABLE_PIN 51

#define Z_HOME_DIR -1

#define FEATURE_BABYSTEPPING 1

#define CONFIGURATION_H

#define PRINTER_RADIUS 124

I have just finished my delta build and have a concave motion, in the center the z gap is 0.2mm but at the outside it is 1mm, i have read that i need to tweak the ''#define Horizontal rod radius'' set

#define FAN_PIN 6" in "pins.h"

#define ENDSTOP_Z_BACK_ON_HOME

#define Z_PROBE_Z_OFFSET 0

#define JAM_METHOD 3

#define TEMP_SENSOR_BED 0

#define MIN_EXTRUDER_TEMP -50

#define CONFIGURATION_H

#define ORIG_X_STEP_PIN     5