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попробуй
#define HOMING_FEEDRATE_Z (20*60)
#define HOMING_FEEDRATE_Z (20*60)
#define DEFAULT_MAX_FEEDRATE { 200, 200, 200, 25 }
#define DEFAULT_MAX_ACCELERATION { 200, 200, 200, 1000 }
#define MAX_ACCEL_EDIT_VALUES { 250, 250, 250, 500 } // ...or, set your own edit limits
#define DEFAULT_ACCELERATION 150 // X, Y, Z and E acceleration for printing moves
#define DEFAULT_RETRACT_ACCELERATION 1000 // E acceleration for retracts
#define DEFAULT_TRAVEL_ACCELERATION 150 // X, Y, Z acceleration for travel (non printing) moves