Anet ET4 ET4X 3D Printer Kit DIY High Precision Aluminum Alloy Frame FDM 3D Printer Support Open Source Marlin   The Anet ET4 is all-metal FDM 3D printer that made of industrial grade 32bit motherboard and comes mostly assembled. It supports auto-leveling, resume printing and filament detection and comes with a more stable and compact construction design. ET4 is the professional 3D printing solution that you can afford.   A4988 Stepper Driver   Automatic Bed Leveling Auto-leveling frees you from time-consuming and labor-intensive leveling tasks.   Power Outage RecoveryResume printing and recover from exactly where it left off. No worries about unexpected power outages.   Filament DetectionFilament detection that detects the filament end and sent reminder to avoid air-printing.   Automatic Filament AssignmentAutomatic load and unload the filament with just a click.   Assembled In No TimeWith modular designed units, you will be able to quick assemble your ET4 on your first try in 10min.   Integrated Modular DesignIntegrated, modular design with terminal pinboard for connection ports, covered wires and a more sleek appearance.   Designed With Safety In MindThe mainboard features thermal runaway protection.    2.8-inch Touch Screen2.8-inch LCD full-color touch screen for easy operation.   Well-Made All-Metal FrameET4 is built to last with high strength aluminum frame. Enclosed metal unibody design enables a more stable and rigid structure with compact size.      Difference of ET4 X and ET4   ET4 X : Full DIY, no auto self-leveling , blue and black color   ET4 : Half DIY, have auto self-leveling, Red and black color      Anet 3D Printer ET Series 3D Printers Comparison