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The spindle control g-codes control when the spindle is spinning and which direction it spins:
- M03: Start spindle spinning clockwise.
- M04: Start spindle spinning anti-clockwise.
- M05: Stop spindle spinning.
Use the S word to control how many rpms the spindle turns at.
Most M03 and M04 g-codes are issued right after the S word establishes the rpm. For example:
S2000 M03
That g-code will start the spindle running clockwise at 2000 rpm.
Example
Note: For most g-code dialects, the leading 0 is optional. You may refer to M03 as M3, M04 as M4, and M05 as M5 gcode.
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Recently updated on March 23rd, 2024 at 06:40 am
Bob is responsible for the development and implementation of the popular G-Wizard CNC Software. Bob is also the founder of CNCCookbook, the largest CNC-related blog on the Internet.