This is the quickest and easiest way I know to create a grid for your CNC spoilboard, aka wasteboard.

Using a grid on your wasteboard gives you an exact X and Y position to place your project, and, it also saves a lot of time.

Next Video to watch:
   • Spoilboard Surfacing Like A Pro  Too...  

Chapters:
0:00 Intro
0:11 Setting up your grind in VCarve Pro
5:19 1st Tip before you start
5:39 2nd Tip after surfacing your spoilboard

Tools I used in this Video:
Makita Trim Router RT0701C https://amzn.to/45VqGIk
Amana Tool RC45711 InTech Insert Carbide V Groove 90 Deg
https://amzn.to/3poKYtz