I have had no problems with my BambuLabs A1 (with AMS lite) for the most part and generally love it. But for some reason this last, simple 1 color, one object print started doing something weird. Every 20-30 cm of line printed it goes and purges. (See picture, where it had only printed a short line and then went to purge. See all those white poops? That’s from a previous attempt where it stopped repeatedly to purge, similarly.) It does this repeatedly. Although I’m not an expert in 3D Printing I can’t think of a reason a printer would be doing this? (The print seems to come out fine if I let it do it’s thing, it just wastes a LOT of material and takes much longer than it should.)

It’s PLA, BTW.

  • JupiterSnarl@lemmy.worldOPEnglish
    1·
    4 days ago

    Hi everyone, thanks for your suggestions. I did try to turn it off and reslice the model, but it seems the situation is getting worse. I think my printer has lost it’s damned mind: Not only is it pooping every few layers, but it’s now started having an error every 5 minutes that says: “The nozzle is covered with filament, or the build plate is installed incorrectly.” Neither of these are true. I’ve checked the nozzle and the build plate multiple times and it’s all OK. I also had a couple extrusion errors that seemed false. Restarting the print was fine until these other errors. Searching the forbidden place for info indicates the false nozzle errors seem to be a common problem after a firmware update but I have never updated the firmware on my printer … for…reasons… and it’s never had this problem before.

    Some clarifications:

    • When I say purge, I don’t mean it’s building a purge TOWER. I mean it’s pooping out the little globs to the left of the picture above.
    • It’s just a simple 1 piece Tinkercad model, exported to STL and sliced in Bambu Studio. it only has one filament in the slice. Here’s a screenie of the sliced attributes: https://i.imgur.com/ZWc6stB.png
    • I can’t seem to figure out how to view the gCode in BS so I can’t see if there’s weird commands in there telling it to do weird things.
    • I’m using the filament profile in BS for the Overture PLA, which is the filament brand/type I’m using.
    • When it gives the nozzle/bed error I can see clearly that it’s not true and click resume and it continues to print for 5+ more minutes and repeats.

    When I told it to stop printing from the screen controls it was like WHAAAAT!? and then just started spitting filament everwhere and then just plunged itself into the print and sat there in a very strange position. See all those little strings coming off the print? That’s where it needed to go poop. See the blob at about 10:00 on the print? That’s where I told it to stop printing and the print head decided to just dump right where it was and then plunge off the edge into the blob itself.