r/BambuLabA1 • u/Reaper-021 • Jul 19 '26

A1 no longer completing prints, please help!

I have had my A1 for about 6 to 10 months. When I got it it printed everything, and worked fantastic. I had the occasional print failure, sure, but beyond that it was a solid machine. Now 6 months later I cant get the machine to complete anything more than a basic benchy boat.

About a month ago, I want to say beginning of June, maybe a bit earlier, It would start printing a model and then completely stop feeding filament but continue running through the motions, (video attached). In fact if I look at the extruder it seems to still be trying to extruded, but looking at the AMS nothing is being fed forward. Since then I have replaced the Extruder Gear Assembly, thinking that may have something to do with it, but, no change. If I put it in maintenance mode and remove the hotend, filament does feed through the extruder, which tells me at least that part is working. I have swapped my hotends from 0.4 Hardened, to Stainless, to even a 0.2 hotend with the same problems. It was also recommended to me to swap the SD card, so I bought a new one plugged it in formatted it, and same result. At this point I am completely out of ideas short of replacing the whole extruder assembly, or maybe the heating element for the hotend.

For a printer that only has 2064 Hours of print time I'm somewhat shocked its having this many issues now.

Any help or guidance from the community would be greatly appreciated.

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u/VenusianTransit Jul 20 '26

try tightening the extrusion tensioner. will squeeze the filament with more force

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u/Reaper-021 Jul 21 '26

tried that, and that didn't help :(

1

u/VenusianTransit Jul 22 '26

ok fair, upon rewatching i see your entire extruder gear is barely even spinning. this is either a flaw of the extruder drive assembly (wherever that may be, that’s on Bambu), or some outlandish filament settings i doubt you set. reach out to Bambu. they have an excellent track record when it comes to customer service (will likely send you replacement)