I recently bought an Ultimaker 2+ ive been very happy with it and had no problems what so ever...all my prints have worked perfectly. Until today...
I ran out of the supplied silver filament so i swapped it over to the white faberdashery filament, i had seen in this forum that people were quite happy with it...however...from the moment i loaded the material ive had issues....under extrusion, looks like the filament is cooling too fast upon extrusion, then it started lifting off the bed as it was printing and now its actually refusing to extrude at all.( so im going to have to clean the nozzle