Received the first 2kg Z-PLA and Z-ASA spools today...
Was very excited to finally print PLA but only till the extruder started to click... and it's still clicking... argh... pleeeease!
I just cleaned the extruder gear... so please somebody tell me: What's wrong here? Very expensive material for PLA should print "rocksolid" imho...
I guess you are having the same issue I had few months ago.
Have a look at the following videos:
I had that problem after printing an object with Z-GLASS material.
I think that the Z-GLASS material has a strong abrasive component and it ruined the filament feeding gear of the extruder motor.
I solve the problem only with the replacement of the whole extruder motor equipped with a new filament feeding gear.
I hope this help you, let me know.