CNC Crash Course #2 – G‑Code Moves G0 & G1
🎥 Video
📝 Overview
This lesson introduces the two most fundamental CNC motion commands: G0 (rapid move) and G1 (controlled feed move). These are the backbone of nearly every CNC toolpath, whether generated by CAM software or written manually.
The video demonstrates how each command behaves inside Candle (GRBL Control), how the machine responds, and why understanding the difference prevents crashes and broken bits.
📌 What You’ll Learn
- What G0 rapid moves are and when they’re used
- What G1 feed moves are and why they matter
- How GRBL interprets motion commands
- How to test G0 and G1 safely inside Candle
- Why CAM software relies heavily on these two commands
📂 Tools & Software Used
- 3018‑style CNC router
- Candle (GRBL Control)
- GRBL firmware
📘 Description
“In this CNC Crash Course lesson, we look at the two most important motion commands in G‑code: G0 and G1. G0 is a rapid move used to reposition the tool quickly, while G1 is a controlled feed move used for cutting. I demonstrate both commands inside Candle so beginners can see exactly how the machine responds.”
💡 Key Takeaways
- G0 moves the machine quickly and should never be used for cutting.
- G1 moves at a controlled feed rate and is used for actual machining.
- Understanding these commands helps you read, write, and troubleshoot G‑code.
- Safe testing inside Candle builds confidence before running real toolpaths.