Designed a part in Tinkercad yesterday. The K2 printed it perfectly in .26mm draft mode. The end results was actually very good. I saw I could cut maybe 10mm off the length of the design and did so, but it is basically the same part. The filament is Creality Hyper PLA Black.
The three times in a row, it prints (what looks perfect) about 10mm of part and has an extrusion error.
Turned the K2 Off.
Tries two more times and I get the extrusion error and print failure at almost the same spot each time.
There are no overhangs or anything that requires support. It is a VERY simple part.
Printed it on the X1C without issue in ABS (cause that is what I had loaded).
That first part on the K2 looks perfect even at a layer height of .26mm !! I have no idear what happened beside firmware.
Dave