G Code Examples

After you install LinuxCNC several sample files are placed in the /nc_files folder. Make sure the sample file is appropriate for your machine before running.

1. Mill Examples

1.1. Helical Hole Milling

File Name: useful-subroutines.ngc

Description: Subroutine for milling a hole using parameters.

1.2. Slotting

File Name: useful-subroutines.ngc

Description: Subroutine for milling a slot using parameters.

1.3. Grid Probe

File Name: gridprobe.ngc

Description: Rectangular Probing

This program repeatedly probes in a regular XY grid and writes the probed location to the file probe-results.txt in the same directory as the .ini file.

1.4. Smart Probe

File Name: smartprobe.ngc

Description: Rectangular Probing

This program repeatedly probes in a regular XY grid and writes the probed location to the file probe-results.txt in the same directory as the .ini file. This is improved from the grid probe file.

1.5. Tool Length Probe

File Name: tool-length-probe.ngc

Description: Tool Length Probing

This program shows an example of how to measure tool lengths automatically using a switch hooked to the probe input. This is useful for machines without tool holders, where the length of a tool is different every time it is inserted.

1.6. Hole Probe

File Name: probe-hole.ngc

Description: Finding the Center and Diameter of a hole.

The program demonstrates how to find the center of a hole, measure the hole diameter and record the results.

1.7. Cutter Compensation

To be added

2. Lathe Examples

2.1. Threading

File Name lathe-g76.ngc

Description: Facing, threading and parting off.

This file shows an example of threading on a lathe using parameters.