I have had PLA printing problems for a few days.
I printed more than 2/300 hours without problems.
The nozzle becomes blocked during printing, when I manually extrude the thread flowing normally.
I cleaned the extruder drive wheel and replace the nozzle (0.4mm) with a new one.
I used the standard config for the PLA Tiertime and I tried to lower to 195 ° C and increase to 225 ° C the temperature.
I print without raft on bluetape
Do you have an idea?
thank you in advance