CNC Machining G-Code: Drilling Operation at Origin with Tool Length Compensation

This code is a combination of G-code commands used for CNC machining. Here is a breakdown of the code:

G49: Cancels the tool length compensation. G15: Selects the coordinate system 15. G80: Cancels the canned cycle. T1 M6: Selects tool 1 and performs a tool change. G0 G90 G54 X0. Y0.: Rapid positioning to the X and Y coordinates (0,0) in the work coordinate system (G54). M3 S1000: Spindle start, clockwise rotation, and set speed to 1000 RPM. G43 H1 Z100.: Enables tool length compensation for tool 1 and sets the Z-axis offset to 100. G98 G81 X0. Y0. Z-1. R1. F100: Initiates a drilling cycle at position (0,0) with a Z-depth of -1, a retract height of 1, and a feed rate of 100 units per minute. G80: Cancels the canned cycle. G0 Z100.: Rapid retraction of the Z-axis to position 100. M9: Turns off the coolant or mist. M5: Stops the spindle. G91 G28 Y0.: Switches to incremental programming and moves the Y-axis to the machine's home position. M30: Ends the program. %: Program end marker.

Overall, this code performs a drilling operation at the origin (0,0) in the work coordinate system, using tool 1.