Hi everyone
New to this platform.
I have been running my new Creality Hi now for about a month. My other printer is an Ender Pro.
No serious hardware issues and the print quality is actually very good, provided I don’t mess with the Creality Print slicer settings too much though.
I attempted a rather large print two days ago and after 6+ hours of printing with about two hours left, the printer paused with a message that the extruder does not seem to be extruding filament. Obviously the nozzle was clogged up and thus the issue. I cleaned the nozzle using only a fine needle from a nozzle cleaning set and did a test extrude, which worked fine. When I then resumed the print job, the printer re-started printing about 4 mm higher than the top most printed row, with obvious disastrous consequences. I tried to lower the print head but the reply was that it can not be done as there is a print in progress. It seems that when a print job pauses for some error, the bar lifts by about 4 mm and when the print resumes, that 4 mm is not canceled.
Has anybody had this problem when restarting a print that was in progress?. Did I do something wrong?. Please let me know. This can be a firmware problem and if so, Creality needs to address this.
In the meantime I came to the conclusion that I was possibly printing on a too slow print speed (80 mm/s) setting vs my nozzle temperature for CR Hyper PLA. The melting point is lower and that could have caused the blockage as the Hyper PLA is formulated for higher print speeds. Did a CR Hyper PLA Benchy print just now at 300 mm/s, and it came out extremely well.
Just another annoying thing:
When starting a new print, my printer goes thru a rather long agonizing semi-calibration like routine before the print starts, even if I did not choose to calibrate when submitting the job?. Is this normal or is there perhaps a setting somewhere that I have missed that can cancel this longish routine for every consecutive print I start?.
Your advise and feedback will be appreciated.
Regards