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Home > Spindles & ATCs > Spindle Break-in Procedure
Spindle Break-in Procedure
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đź›  Spindle Motor Break-In Procedure

Before using your spindle—especially if it's been sitting idle for a while or stored in a cold environment—we recommend running the break-in procedure again to ensure smooth operation.

🔍 Why It Matters

This process helps evenly distribute internal lubricants and gently warms up the motor for proper performance and longevity.


🔄 Break-In Steps

You'll run the spindle at gradually increasing speeds, allowing it to stabilize at each step:

  1. 6000 RPM – run for 20–30 minutes

  2. 9000 RPM – run for 20–30 minutes

  3. 12,000 RPM – run for 20–30 minutes

  4. 18,000 RPM – run for 20–30 minutes

  5. 24,000 RPM – run for 20–30 minutes

đź’ˇ Important:

  • Make sure your spindle is in a safe, clear position.

  • Do not install a bit during this process.


đź§Š For Water-Cooled Spindles

We recommend running the first 1–2 speed stages with your coolant pump turned off.
This helps the spindle warm up more quickly—then turn the pump on for the remaining stages.


đź’» G-Code Instructions

If you'd like to automate the process, here’s a basic G-code script you can use as a template.

Note: Save the below text to a .txt file, then rename it with the correct extension for your controller (e.g., .ngc, .gcode, etc.).

M3 ; Start spindle clockwise
S6000 ; Set speed to 6000 RPM
G4 P1200000 ; Pause 20 minutes (1,200,000 milliseconds)

S9000
G4 P1200000

S12000
G4 P1200000

S18000 G4
P1200000

S24000
G4 P1200000

M5 ; Stop spindle

 

 


⚠️ A Few Tips

  • If your controller interprets the G4 P command in seconds instead of milliseconds, adjust the pause values accordingly (e.g., P1200 for 20 minutes).

  • This script is intended as a guide—feel free to adjust durations based on your climate, equipment, or usage patterns.

  • If you're unsure about any part of this, feel free to reach out to [email protected] for guidance.

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Attachments

Spindle_Breakin.gcode
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