![Started to get some random, yet extreme, Z artifacts on one of my UM2's - UltiMaker 3D printers - UltiMaker Community of 3D Printing Experts Started to get some random, yet extreme, Z artifacts on one of my UM2's - UltiMaker 3D printers - UltiMaker Community of 3D Printing Experts](https://content.invisioncic.com/ultimake/monthly_2015_05/5a330d4518213_IMAG02121.jpg.775fe28a87f1a1cd10ae8415314fd0ea.jpg)
Started to get some random, yet extreme, Z artifacts on one of my UM2's - UltiMaker 3D printers - UltiMaker Community of 3D Printing Experts
![print quality - Surface artifacts when formation of object changes (Layer inconsistency) - 3D Printing Stack Exchange print quality - Surface artifacts when formation of object changes (Layer inconsistency) - 3D Printing Stack Exchange](https://i.stack.imgur.com/ij6ei.jpg)
print quality - Surface artifacts when formation of object changes (Layer inconsistency) - 3D Printing Stack Exchange
![Started to get some random, yet extreme, Z artifacts on one of my UM2's - UltiMaker 3D printers - UltiMaker Community of 3D Printing Experts Started to get some random, yet extreme, Z artifacts on one of my UM2's - UltiMaker 3D printers - UltiMaker Community of 3D Printing Experts](https://content.invisioncic.com/ultimake/monthly_2015_05/5a330d43cd723_IMAG02101.jpg.cc5d76de286cf13e11d4def02418ce46.jpg)
Started to get some random, yet extreme, Z artifacts on one of my UM2's - UltiMaker 3D printers - UltiMaker Community of 3D Printing Experts
![First prints have artifacts: how to improve? - UltiMaker 3D printers - UltiMaker Community of 3D Printing Experts First prints have artifacts: how to improve? - UltiMaker 3D printers - UltiMaker Community of 3D Printing Experts](http://uzebox.org/images/3d/IMG_3316_t.jpg)