About this video
Why Stuck Filament Happens in AMS
The Bambu Lab AMS (Automatic Material System) is a game-changer for multi-color printing, but occasional filament jams can occur. These jams typically happen when filament gets lodged in the PTFE tube, moisture causes degradation, or the feeding mechanism encounters a clog. The good news? Removing stuck filament from your AMS is simpler than you might think.
What You'll Need
Before starting, gather these items:
- Phillips head screwdriver
- Clean workspace
- Your Bambu Lab P1S printer with AMS attached
Step-by-Step Process
1. Clear All Filament First
Begin by removing all filaments from your AMS units. This prevents additional jams and gives you clear access to the affected area.
2. Locate and Remove the Cover Screws
Find the two small holes containing screws on the AMS unit. Use your Phillips head screwdriver to carefully unscrew both. Keep these screws in a safe place—losing them is common!
3. Remove the AMS Cover
Slowly lift and remove the cover box. Exercise caution here—there are two cables underneath that connect to the unit. Disconnect these cables before fully removing the cover.
4. Access the Stuck Filament
Flip the AMS unit to access the stuck filament. This is your target area for the removal process.
5. Push and Pull Technique
Insert your finger on one side of the PTFE tube and push gently while pulling the stuck filament with your other hand. The filament should release smoothly using this push-pull method.
6. Reassemble Everything
- Push the PTFE tube back into place
- Reconnect the cables exactly as they were
- Insert the cover and secure with screws
- Check that any loose rollers are properly seated
- Verify the rear PTFE tube connection
Pro Tips
- Work on a flat surface to prevent losing small screws
- Keep spare PTFE tubes on hand for quick replacements
- Regular maintenance and dry filament storage prevent most jams
Frequently Asked Questions
Q: Will this process void my warranty?
No, routine maintenance like this is expected and won't affect your warranty.
Q: How can I prevent future jams?
Store filament in dry boxes and ensure it's free of moisture before loading.
Q: Can I use this method on other Bambu Lab printers?
Yes, the AMS system is similar across P1S, X1C, and X1 models.
After completing these steps, your AMS should be ready for your next print job. Regular maintenance keeps your Bambu Lab P1S running smoothly and extends the life of your equipment.
