Well I didn't buy the printer; it's in my school's 3d printing labs. the only printers that are there are a few lulzbot minis and 3 taz 6s and an ultimaker, but the ultimaker has a 0.8mm nozzle and I need at least 0.4mm nozzle. The minis aren't that great either. I forgot to mention that it prints the first few millimeters perfectly and then as the height of the print increases i get that, and then a few millimeters later everything seems to be printing just fine as you can probably tell from the photos.