一、参数修改

grbl源码中，默认不是使用CoreXY结构的，需要在config.h文件中取消CoreXY的注释，如下：

然后是defaults.h中的参数配置，我是直接修改的DEFAULTS_GENERIC，要是想也可以自己单独写一个参数配置

原来的参数如下：

#ifdef DEFAULTS_GENERIC
  // Grbl generic default settings. Should work across different machines.
  #define DEFAULT_X_STEPS_PER_MM 250.0
  #define DEFAULT_Y_STEPS_PER_MM 250.0
  #define DEFAULT_Z_STEPS_PER_MM 250.0
  #define DEFAULT_X_MAX_RATE 500.0 // mm/min
  #define DEFAULT_Y_MAX_RATE 500.0 // mm/min
  #define DEFAULT_Z_MAX_RATE 500.0 // mm/min
  #define DEFAULT_X_ACCELERATION (10.0*60*60) // 10*60*60 mm/min^2 = 10 mm/sec^2
  #define DEFAULT_Y_ACCELERATION (10.0*60*60) // 10*60*60 mm/min^2 = 10 mm/sec^2
  #define DEFAULT_Z_ACCELERATION (10.0*60*60) // 10*60*60 mm/min^2 = 10 mm/sec^2
  #define DEFAULT_X_MAX_TRAVEL 200.0 // mm NOTE: Must be a positive value.
  #define DEFAULT_Y_MAX_TRAVEL 200.0 // mm NOTE: Must be a positive value.
  #define DEFAULT_Z_MAX_TRAVEL 200.0 // mm NOTE: Must be a positive value.
  #define DEFAULT_SPINDLE_RPM_MAX 1000.0 // rpm
  #define DEFAULT_SPINDLE_RPM_MIN 0.0 // rpm
  #define DEFAULT_STEP_PULSE_MICROSECONDS 10
  #define DEFAULT_STEPPING_INVERT_MASK 0
  #define DEFAULT_DIRECTION_INVERT_MASK 0
  #define DEFAULT_STEPPER_IDLE_LOCK_TIME 25 // msec (0-254, 255 keeps steppers enabled)
  #define DEFAULT_STATUS_REPORT_MASK 1 // MPos enabled
  #define DEFAULT_JUNCTION_DEVIATION 0.01 // mm
  #define DEFAULT_ARC_TOLERANCE 0.002 // mm
  #define DEFAULT_REPORT_INCHES 0 // false
  #define DEFAULT_INVERT_ST_ENABLE 0 // false
  #define DEFAULT_INVERT_LIMIT_PINS 0 // false
  #define DEFAULT_SOFT_LIMIT_ENABLE 0 // false
  #define DEFAULT_HARD_LIMIT_ENABLE 0  // false
  #define DEFAULT_INVERT_PROBE_PIN 0 // false
  #define DEFAULT_LASER_MODE 0 // false
  #define DEFAULT_HOMING_ENABLE 0  // false
  #define DEFAULT_HOMING_DIR_MASK 0 // move positive dir
  #define DEFAULT_HOMING_FEED_RATE 25.0 // mm/min
  #define DEFAULT_HOMING_SEEK_RATE 500.0 // mm/min
  #define DEFAULT_HOMING_DEBOUNCE_DELAY 250 // msec (0-65k)
  #define DEFAULT_HOMING_PULLOFF 1.0 // mm
#endif

修改后

#ifdef DEFAULTS_GENERIC
  // Grbl generic default settings. Should work across different machines.
  #define DEFAULT_X_STEPS_PER_MM 80.0   //步进电机每毫米步数
  #define DEFAULT_Y_STEPS_PER_MM 80.0
  #define DEFAULT_Z_STEPS_PER_MM 80.0
  #define DEFAULT_X_MAX_RATE 3000.0 // mm/min   //最大移动速度
  #define DEFAULT_Y_MAX_RATE 3000.0 // mm/min
  #define DEFAULT_Z_MAX_RATE 1000.0 // mm/min
  #define DEFAULT_X_ACCELERATION (300.0*60*60) // 10*60*60 mm/min^2 = 10 mm/sec^ //加速度
  #define DEFAULT_Y_ACCELERATION (300.0*60*60) // 10*60*60 mm/min^2 = 10 mm/sec^2
  #define DEFAULT_Z_ACCELERATION (100.0*60*60) // 10*60*60 mm/min^2 = 10 mm/sec^2
  #define DEFAULT_X_MAX_TRAVEL 200.0 // mm NOTE: Must be a positive value.  //最大行程
  #define DEFAULT_Y_MAX_TRAVEL 180.0 // mm NOTE: Must be a positive value.
  #define DEFAULT_Z_MAX_TRAVEL 200.0 // mm NOTE: Must be a positive value.
  #define DEFAULT_SPINDLE_RPM_MAX 1000.0 // rpm
  #define DEFAULT_SPINDLE_RPM_MIN 0.0 // rpm
  #define DEFAULT_STEP_PULSE_MICROSECONDS 10    //步进脉冲设置
  #define DEFAULT_STEPPING_INVERT_MASK 0
  #define DEFAULT_DIRECTION_INVERT_MASK 0
  #define DEFAULT_STEPPER_IDLE_LOCK_TIME 250 // 步进电机空闲锁定时间
  #define DEFAULT_STATUS_REPORT_MASK 1 // MPos enabled
  #define DEFAULT_JUNCTION_DEVIATION 0.01 // mm
  #define DEFAULT_ARC_TOLERANCE 0.001 // mm
  #define DEFAULT_REPORT_INCHES 0 // false
  #define DEFAULT_INVERT_ST_ENABLE 1 // false
  #define DEFAULT_INVERT_LIMIT_PINS 1 // false // 启用软限位保护
  #define DEFAULT_SOFT_LIMIT_ENABLE 0 // false // 禁用硬限位
  #define DEFAULT_HARD_LIMIT_ENABLE 0  // false
  #define DEFAULT_INVERT_PROBE_PIN 0 // false
  #define DEFAULT_LASER_MODE 0 // false
  #define DEFAULT_HOMING_ENABLE 0  // false
  #define DEFAULT_HOMING_DIR_MASK 0 // move positive dir
  #define DEFAULT_HOMING_FEED_RATE 25.0 // mm/min
  #define DEFAULT_HOMING_SEEK_RATE 500.0 // mm/min
  #define DEFAULT_HOMING_DEBOUNCE_DELAY 250 // msec (0-65k)
  #define DEFAULT_HOMING_PULLOFF 1.0 // mm
#endif