G91 incremental positioning is extremely powerful — and extremely dangerous when forgotten. Many CNC crashes happen because the machine remained in incremental mode from a previous operation or manual input. Operators often believe the machine malfunctioned when the real problem ...
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Why CNC Machines Crash During Rapid Retract (The Hidden Z-Axis Mistake — 2026 Guide)
cnccodeMany CNC programmers believe retract moves are safe because the tool is moving away from the part. In reality, rapid retract crashes are extremely common and often happen unexpectedly. This guide explains why rapid retracts cause crashes and how professionals ...
The ONE G-Code That Causes the Most CNC Crashes (And How to Use It Safely in 2026)
cnccodeG00 (rapid positioning) is responsible for more real CNC crashes than any other command. The reason is simple: it moves at maximum machine speed and gives operators almost no reaction time. In 2026 production environments where machines run faster than ...