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[BUG] Ghost Y-Axis Crashes

Open DFliyerz opened this issue 4 years ago • 140 comments

Printer type - MK3S Printer firmware version- 3.8.1

Describe the bug I'm getting repeated "ghost" y-axis crashes when printing models both from the SD card supplied with the printer and models sliced on PrusaSlicer where at similar heights the printer will detect a y-axis crash for seemingly no reason, try to recover, and usually end up slightly offset. I've attached a picture showing two Benchys, one that recovered and was allowed to print further, and one that was cancelled after the crash. Additionally, to the right is a model I sliced in PrusaSlicer, which also crashed and was cancelled.

To Reproduce I tried reproducing the behavior by printing a 20mm tall tower while watching the printer (the crash usually happens between 10-15mm), but the crash didn't occur. I also checked the belts, pulleys, etc. to see if they might have been causing the issue but they all seemed normal.

Expected behavior There doesn't seem to be a reason for these crashes occuring, and even if they are legitimate crashes it shouldn't be recovering with an offset.

photo_2020-05-03_11-11-05

DFliyerz avatar May 03 '20 18:05 DFliyerz