jcw
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Posts posted by jcw
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Since a recent upgrade, I now always see each print end with a huge (3x3mm) blob driven into the object with the head remaining in the final position. Apart from the slight mess on the final print, this causes the filament-driving teeth to grind the plastic, so that the NEXT print fails to feed any material until I remove the PLA filament, cut off the ground piece, and re-insert it.
I've printed over 100 hours with this printer, it worked fine until the latest upgrade to fw 2.6.2, and works splendidly in every other respect. I'm using a new install of Cura 3.2.1 on macOS with a UM2+.
Is this a (known) bug in the latest firmware? Should I downgrade? And if so, to which version?
-jcw
PS. As a quick check, I just printed an object sliced by an earlier version of Cura, and that completed fine. So the problem may actually be in Cura, not the firmware... therefore, attached: an object which prints WITH the extra blob. Hopefully that will help someone diagnose this issue.
Big blob at end of print, UM2+
in Firmware
Posted
Three-fold thanks: for confirming the bug, for announcing a fix, and for providing a workaround.