Locating the filament in clogged extruder

[tracim]

Hi. I have combed through many discussions on here and I believe I am at the point where I need to disassemble the extruder on my A1. I’ve linked the wiki I am reading and attaching a photo. The photo is from the wiki. My question is once I have the gear removed where exactly am I looking for the stuck filament?

https://wiki.bambulab.com/en/a1-mini/troubleshooting/extruder-clog

[Neiljt]

What you are reading is general cleaning , which goes a little deeper than just a clog

[radf_printing]

I’ve taken mine apart only to find pretty much nothing stuck there, and if there was it would be pretty obvious when you open it.

[user_2991194999]

Funny, I just recently had the same thing or similar experience. I took my extruder head apart to find nothing jamming or anything, it was actually very clean. I thought I had a stripped gear. Actually, the problem was a clogged extruder nozzle, I replace the nozzle and all is well again.
Hope this helps and good luck!

[user_1419056502]

During a recent print, I encountered a filament jam and resolved it manually by restarting the printer, heating the hotend to 255°C, and manually pushing filament through the hotend via the AMS system. While this resolved the issue, it got me thinking about how the process could be automated to further enhance the user experience.

Since the printer already detects clogs through built-in pressure sensors, and G-code commands are available to control the AMS and hotend, it seems feasible to implement an automated recovery system. Here’s how it might work:

1. Clog Detection:

   • Upon detecting a jam, the printer pauses the print and enters a “Clog Recovery Mode.”

2. Automated G-Code Execution:

   • Heat the hotend to 255°C (or a user-defined maximum).
   • Use the AMS to push filament into the hotend with controlled pressure until the jam clears.
   • Monitor filament flow to ensure the clog is fully resolved.

3. Purge and Resume:

   • Purge excess filament to clear the nozzle.
   • Automatically resume printing from the last saved position.

This feature could be included as part of the filament jam error response, allowing users to clear jams without manual intervention. I believe this would significantly enhance the usability and reliability of Bamboo Lab printers.

[tracim]

When you say nozzle, you’re referring to the hotend? Sorry, not real good with all the terms yet.

[tracim]

That would be a great feature.

[user_2991194999]

Yes, this little baby right here.

[tracim]

Thank you. Going to try this.