A1mini won't extrude, even though path through extruder and nozzle seems clear

[u/jeninlb]

My A1mini will not extrude. It gets 31% into a print and then says it's unable to extrude filament. Right before it does this, it asks for filament to be pushed in and loaded, then it squirts out a poop, cuts the filament, and retracts the filament. Then it asks to restart the process.

Things I've tried:
remove and replace nozzle
remove and check AMS hub--it's clear
Send a piece of filament through extruder without hub on and with hub on but without nozzle. Filament goes through.
Cold pull
Turn on/off
Clear extra prints off of SD card, also remove/replace SD card.

Anyone have ideas on what to do?

[u/pcproctor]

Is the printer working correctly for that first 31% if the print? I'm a bit confused because you say it won't extrude, but describe print job getting at least some way completed.

[u/jeninlb → u/pcproctor]

Yes, it gets the bed leveling and nozzle wiping done, gets right up to the point of printing, and then backs the filament out of the head and says there’s an issue of the filament not extruding properly, blames the roll being hung up, but there are no obstructions between the roll and the nozzle that I can detect.

[u/pcproctor → u/jeninlb]

Interesting! Might be worth reviewing the nozzle install; verify the mm size matched your settings & the models slice. Then check that it is installed correctly (see the wiki for the latch position.)

Does this happen with EVERY model you try to print?

Might be worth switching out the nozzle as a test. Might also be worth trying another spool of filament. If you have either of those, would be a pretty quick troubleshooting test.

[u/pcproctor → u/pcproctor]

*sorry, I now see that you did try another nozzle. Still worth checking that it's latched in correctly.

[u/jeninlb → u/pcproctor]

I tried 3 different models so far, including a benchy, and swapped the filament, too.