I’m printing a model (attached below) with PLA filament (calibrated) with the .04 nozzle. Most of the the print is ok - I’ve been lightly sanding the top, but as you can see, the part highlighted in the picture prints terribly. I thought it might be the 0.4 nozzle, but other prints of this model using the .04 nozzle print all right. What else should I be looking at?
From all the stringing I see, I would say the first thing you need to do is dry your filament!
Looks like that piece came loose from the bed during printing and was moving under the nozzle.