2017 Newest High Performance Shining 3D Einstart-S Desktop 3D Printer (Alloy Framework, High Accuracy, Stability and Speed, Large Build Size) Easy to use no PC connection needed. Full metal framework ensures high print quality. Pre-assembled. Support .stl file from all design software. Support all 3rd party 1.75mm PLA filament. Non toxic filament, protected print head, safe for open environment usage. No calibration needed. Smart Control Software offers print pause, filament change, temperature/ sprint speed adjust. Comprehensive customer support, Regular Firmware/ control software Upgrade. Mature user community.