matteolopreti

I’m having troubles with printing of PVA support materials with my Ultimaker S3. I’m printing from a Core B0.4 (new), I’ve recently changed the Bowden cable, and the filament is also new. When i load the material, it seems to be extruding correctly. I’ve then tried the calibration procedure, but from a certain point on, the PVA did’t extrude well any longer. When I unloaded and loaded again the filament, it managed to extrude again. The signs on the filament made by the feeder look regular. Can anyone figure out what is happening?