So I’ve had nothing but a disappointing journey so far here with this k2 that put me in the hole for a ton of money. The nozzle randomly scrapes the bed so that it rips up all of the filament it’s already laid down. The bed mesh I calibrated down to 0.38 which worked its way back up after a few print attempts to 0.68. Is this a bad unit? I’m so beyond disappointed and yet, every day, faithfully I keep trying to get this thing to print nicely. I’ve attached some pics to maybe give some indication of what might be wrong/going on if anyone spots it. This community has been the only saving grace for my creality journey and I appreciate each and every one of you and your feedback and time.
Reprint from Creality print but enable calibration on the app left side of the reel selection screen
Have you checked the two screws on the hot end are tight ?
And that the nozzle is tight, either of those could account for the extra 0.3mm after a few prints.
If your screws are not loose you can try this.
What is the temp inside the chamber when you start the print ? Mine is around 25c/30c after heating the bed for 15min on 55c. Then after bedmesh and 20min printing the chamber is around 35c/40c.
Before new print.
I set the chamber exchaus ventilator to 40c. Chamber to 35c. And the bed to 55c for a minimum of 15/20 Minutes. Then i do the bedmesh/start print
Bedmesh wil reset al the temps you dont need to set it again when you start the print. I personally always set the chamber exchaus ventilator to 40c because the printer makes les noise.