Longer LK4 3D Printer 90% Pre-Assembled with 2.8" Full Color Touch Screen, Resume Printing, Filament Detector, Built-in Safety Power Supply 220x220x250mm

* 90% Pre-assembled: The new arrived LK4 simplifies assembly. The complicated parts such as cantilever, gantry, and nozzle have been assembled before leaving the factory. 90% of the assembly process is completed in advance. It saves 50% of the assembly time compared to other printers, and ensure better printing quality. * 2.8” Full Color Touch Screen: Easy to operate, brand new friendly UI to preview model and printing process on screen, offline printing. Say goodbye to the traditional manual knob screen. * New Aluminum Frame & Resume Printing: Better printing quality and durable with sturdy new frame. Stylish outlook. Resume printing after power loss; Filament run out detection system automatically suspends printing when the filament runs out. * Built-in Safe Power Supply: This 3d printer is hidden designed, power supply placed under the flatbed to ensure users' safety. And with the power of 280W, the heat bed temperature can up to 100℃ within 4 minutes, 25% faster than other printers. * Warranty and Supp...