Tool Offset for custom Gcode (fusion 3d cnc projects)

[Wouter Horselenberg]

Hi all,

I have been wanting to use the cirQoid pcb cnc for some time now as full (mini) cnc machine to do all kinds of other cnc projects based on 3D files. I use Fusion for 3D design and CAM. There is an awesome processor for fusion here somewhere and it works great. The only problem that I faced was that I needed to get the Z-axis on a correct off-set.

With engraving or other single height files you can just manually edit the g-code file and change the Z-height message in the start of the file to some height you have tested with your tool.

But when you more complex multi layer passes with all kind of feed in and out options your need to add your offset to ALL of the Z-heights defined in the g-code.

So my friend Remko and I made a powershell script that lets you point to a g-code without tool offsets and lets your fill in the wanted number of offset that all Z-height should be recalculated for.

The code can be find here : https://github.com/acekrystal/G-code-Axis-Offset-fixer

0. right click on the .ps1 file and click "edit", it will open "Windows Powershell ISE"

1. Point to the gcode file.

2. Adjust the "increaseZ" variable with your wanted offset (negative is allowed)

The code will show you the result below, and it is also directly copied so you can directly CNTRL+V it in what ever machine you wish to bent to your will ;)