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.

  • Bluewing@lemmy.worldEnglish
    1·
    3 days ago

    Things you might try,

    Print something else. Just a small simple cube is enough. If it prints fine, then there is an issue with the model or slicer settings.

    If you suspect the slicer, maybe try using Orca slicer to see if that’s the issue. If it prints fine with Orca, then purge everything Studio from your system and reinstall Studio.

    If all that fails, then reset your printer back to factory and start over again.

    And if that fails, buy a Mk4 or Core One…

  • BakedCatboy@lemmy.mlEnglish
    11·
    5 days ago

    I don’t have a bambu so this is just a shot in the dark - but did you maybe use a multi color profile for the single color print? I seem to remember at one point getting purge towers on single color prints when I forgot to switch back to the single color profile.

  • ExcessShiv@lemmy.dbzer0.comEnglish
    5·
    4 days ago

    Did you slice the model? It will only go to purge when it gets the command, so the command in the Gcode. If the original model contained filament swaps, but you just set it to use the same color without removing these filament swaps, then it will still go purge like you describe.

  • Lexam@lemmy.worldEnglish
    8·
    5 days ago

    I would turn it off and on again. And I would reslice the model. Make sure there are no multi material settings checked. Hope that helps.

  • JupiterSnarl@lemmy.worldOPEnglish
    1·
    3 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.

  • FleetingTit@feddit.orgEnglish
    1·
    3 days ago

    A friend of mine who owns an A1 complains that it regularly clogs. I could imagine that Bambu tries to avoid that by regularly purges through the slicer. Total shot in the dark though.