Guides
Why Did the Spindle Stop but Feed Continue on a CNC?
A moving feed with a dead spindle is a code or override mismatch: an M05 that fired early, a missing spindle-at-speed wait, or independent feed and spindle controls.
Lawrence Arya··4 min
Practice
Machine Stopped Waiting for Spindle, But It's On: The Checklist
When a CNC halts waiting for the spindle while it is visibly spinning, the control is missing a confirmation signal: at-speed, orientation, or gear state. The hunt order.
Lawrence Arya··5 min
Code reference
M03 vs M04 vs M05: Spindle Codes Made Simple
M03 starts the spindle clockwise, M04 starts it counterclockwise, and M05 stops it. Here is what each does and how to remember the set.
Lawrence Arya··5 min