Common CNC Commands

• G0: Rapid move (Non-cutting).
• G1: Linear cut (Controlled feed).
• G2/G3: Clockwise/Counter-clockwise arc.
• G21: Metric units (MM).
• G28: Return to home.
• M3 / M5: Spindle On / Off.
• M8 / M9: Coolant On / Off.
• $H: Homing cycle (GRBL).