90% Pre-Assembled, Stable Triangular StructureThe upgraded Longer LK5 Pro 3d Large Scale Printer is 90% pre-assembled with a maximum build size of 11.8" * 11.8" * 15.7". Coupled with the reinforced design of the inclined rod, a stable triangular structure is formed, which effectively reduces vibration and achieves more stable printing. Resume printing functionLONGER's upgraded LK5 Pro 3D printer can resume printing from the last recorded extruder position in the event of an unexpected power outage or after running out of consumables. Plus, the sensor pauses printing and alerts you when supplies run out, saving you time and waste. Upgraded Dual Blower KitLK5 Pro upgraded 3D printer is equipped with a dual blower kit, which allows the extruded filaments to cool and shape quickly, giving you better print quality. Low Noise & Lattice Glass PlatformUsing the TMC2208 chip driver on the x, y, and z-axis, printing is very quiet. This reduces