Imaginationeering's Printer Guide - Top 7 Best 3D Printers Ultimaker 2 - For Enthusiasts The Ultimaker 2 is easy and reliable, designed for the best experience in 3D printing. Featuring a .4mm extruder capable of an amazing 20 micron layer resolution, 12 micron XY precision, and 5 micron Z precision, the Ultimaker 2 is the best consumer 3D printer available today. Operating Temperature: 15-32°C. Storage Temperature: 0-32°C. Supported OS: Windows XP+, Mac OS X 10.6+,Linux