ET-i3 Cheap 3D Printer is a new design of the 3d printer,thinks for reprap community.We do a lot of optimization on the machine structure,so you can assemble it within two hours. ET-i3 Cheap 3D Printer is an all metal parts so work more steady and ensure a longer life. ET-i3 Cheap 3D Printer is a most playability 3d printer,because we have provided eight optional upgrade kits:color touch screen,power off resume,autolevel,filament break warm,double in single out extruder,laser carving,large platform(280*200) and wifi control.