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Prusa XL stops mid print with no errors / warnings  

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PonyBoy Pop Art
(@ponyboy-pop-art)
Active Member
Prusa XL stops mid print with no errors / warnings

I finished installing my Prusa XL and printed the included Batarang GCODE without issue.  I sliced a print of one of my models and when I went to print it, it said that this included a new firmware update, and that my printer would update.  It did.  Since that, I have attempted (3) different prints.  Each one gets about 3-5 hours into the job (each is 10-15 hours depending on the print), and then simply stops.  The progress bar sits at 36% or 29% or similar, and simply waits forever.  I have verified that the GCODE files are completely intact.  I have opened them in GCODE viewer and verified them to be complete.  I have also performed bytewise-comparisons to the sliced files on my laptop with those on the USB drive.  So far, I am using the USB drive that was included with the printer.

 

Has anyone else experienced this and what is the solution?  I cannot have accept an XL printer that is not capable of printing a job half the size that my M3 can handle with ease.   WTAF?!?!

Posted : 29/10/2023 9:45 pm
Per S.
(@per-s)
Member
RE: Prusa XL stops mid print with no errors / warnings

Do you have the 5.1 Alpha-2 firmware installed? If you do, try to pause the print when it stops/freezes. Most likely it will say it lost contact with the USB stick. Unplug, replug and resume print. And, a snip of the blob created on the print before it bangs into it.

If you have the 4.7.2 I had the same thing happening to me, but I just cancelled the print. Maybe I should just have tried to pause or unplug and replug the USB stick, and then resume print, but I kind of got stressed out so I didn't really think it thru.

After upgrading to 5.1 Alpha-2 and then downgrading to 4.7.2 again (due to instability when I didn't have time for that,) I haven't experienced this.

Also, another thought; try to reformat your USB-stick. FAT32 is the way to go. It might help. Seems to me this problem has to do with the USB-connection getting stuck or lost.

Good luck.

Posted : 30/10/2023 6:12 am
Lagersuufer
(@lagersuufer)
Active Member
RE: Prusa XL stops mid print with no errors / warnings

I've also had this problem with both the 5.1 alpha2 and 4.7.2 firmware, and multiple USB drives. The pause/re-plug USB/resume works in both firmwares, BUT you may lose a layer on your print.

And interesting note, I can print the model just fine as a single color print. But it fails every time, at random points, when I print it as a 5 color print.

 

 

Posted : 30/10/2023 2:15 pm
Per S.
(@per-s)
Member
RE: Prusa XL stops mid print with no errors / warnings

Interesting. I haven't had any problems after downgrading, but it sounds like I've just been lucky. Then again, the only long prints I've done are single colour prints.

Or maybe a freshly formatted USB-drive have, for the time being, helped me .

Posted : 30/10/2023 5:16 pm
PonyBoy Pop Art
(@ponyboy-pop-art)
Active Member
Topic starter answered:
RE: Prusa XL stops mid print with no errors / warnings

I upgraded to firmware v5.1.0alpha and it made it through the night without issue.  If the issue is resolved, I will not leave any more comments, and will presume that v4.7.2 was the problem.

Posted : 31/10/2023 1:48 pm
PonyBoy Pop Art
(@ponyboy-pop-art)
Active Member
Topic starter answered:
RE: Prusa XL stops mid print with no errors / warnings

I had a false moment of hope.  It made it through ONE 16 hour print with v5.1.0Alpha.  Then it started flaking out again.  Sometimes PAUSE/RESUME will work.  Most times, I have to physically pull the USB stick out and re-insert it.

Once I babystep it through the rest of this print, I will try downgrading the firmware AND re-format the USB. 

Posted : 03/11/2023 2:40 pm
GuyH
 GuyH
(@guyh)
Reputable Member
RE:

Just had the USB drive (Prusa one that came with machine) error on a 8h print. 5 objects, at least one is done for. I'm hoping it completes and the rest are ok. The longer I live with this printer the less I trust it. I cannot afford to run a development machine for Prusa. Contemplating returning it or selling. 

 

EDIT: Thought I'd use the cancel objects to cancel the failed part. The options is greyed out even though I'm running the alpha fw and sliced on the 2.7 beta PS.

Posted : 13/11/2023 7:46 pm
1Eye
 1Eye
(@1eye)
Eminent Member
RE: Prusa XL stops mid print with no errors / warnings

FYI: I had this issue on multiple attempts for the same print. Each stopped at a different amount of progress. I tried a full power off (hard off at the switch, not a reset) and it did recover after power was restored but the print output was horrible.  It was suggested to me by support to disable Prusa Link to address the problem. So far this has worked for me.

Posted : 18/11/2023 4:22 am
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