Weekly Tasks (every 50–100 print hours)

Clean build plate All printers
Wipe with 90%+ IPA. Do this before every print for best adhesion. Weekly: full soap-and-water wash.
Inspect nozzle exterior All printers
Check for buildup, damage, or wear. Clean exterior with brass brush while nozzle is at 200°C. Never use steel brushes.
Wipe carbon/linear rods X1C / P1S / P2S / H2S
Dry microfiber cloth along the full rod length. Do not oil: carbon rods run dry.
Empty waste bin All printers with AMS
Clear purge material from the waste chute before it overflows into the print area.
Vacuum the chamber All printers
Remove loose filament strands and dust from the print area. Debris in the motion system causes failures.
Check PTFE tubes AMS users
Inspect AMS PTFE tubes for kinks, cuts, or debris. Replace damaged tubes: they're cheap.

Monthly Tasks (every 200–300 print hours)

Lubricate Z-axis linear rails X1C / P1S / P2S / H2S
Small drop of light machine oil (3-in-1 or sewing machine oil) on each Z-axis rail. Run Z up and down to distribute. Only Z-axis, not X/Y carbon rods.
Clean Lidar lens and camera X1C / P1S
Gently wipe with a soft, dry, lint-free cloth. Dust on Lidar causes calibration failures.
Check belt tension All printers
Run Vibration Compensation calibration. Target: 110–150Hz for X1C/P1S/P2S. Both Y belts within 10Hz of each other.
Clean extruder gear All printers
Remove filament and clean gear teeth with a stiff brush. Filament dust in gears causes gradual under-extrusion.
Check all cable connectors All printers
Reseat toolhead cable and any connectors that move. Vibration slowly loosens connections over months.
Run full calibration All printers
After maintenance, run Settings ? Calibration ? Full Calibration to verify everything is accurate.

Hour-Based Maintenance

Replace nozzle / hotend assembly 250–500 hours
Standard brass nozzles wear faster with abrasive filaments. Hardened steel lasts much longer. Check for wear: flat or scratched nozzle tip, inconsistent extrusion despite good calibration.
Inspect and re-tension belts 500 hours
Belts stretch gradually with use. If vibration calibration shows consistently low frequencies even after adjustment, belts may need replacement.
Deep clean AMS internals 300–500 hours
Disassemble AMS hub, clean feeder gears, inspect hall effect sensors. Blow out each slot with compressed air.
Replace PTFE tubes 500–1000 hours
PTFE degrades at the hotend end over time, especially with high-temperature materials. Discoloration or resistance to filament movement indicates replacement needed.
Check linear bearing condition 1000+ hours
Listen for grinding or scraping when moving axes by hand. Rough movement indicates bearing wear. Contact Bambu Lab support for bearing replacement guidance.