High-precision 3D printer with ±0.1mm high printing accuracy, 220 * 220 * 250mm large printing size with one-piece structure, saving space but building the world. MK-8 extruder greatly reduces plugging risk and bad extrustion; and the hotbed can reach 110& 8451; in about 5 minutes to meet the needs of fast heating and printing. CNC machining of Y-rail mounting groove to make sure precise positioning and keep the stable frame with high-precision printing quality. Adopts V-socket linear bearing system and wheel moving parts, super noiseless and smooth printing performance; big hand twist nut make the print platform easier to level. Safely protected power supply and resume printing function, if the machine is shut down or power failure accidentally, it can continue printing after power on. Compatible with various 1.75mm printing filaments like PLA, ABS, TPU, etc; wide applications, can be used for product structure design, toy modeling, architectural design, parts manufacturing, etc. If you are interested, you can make a 3D printing mask and goggles, provide you with a safety guarantee for your family and friends.  Download link of STL file of 3D printing mask and goggles: https://www.cxsw3d.com/uploads/202002/5e43ce93d0d7a.zip Specifications: Plug: US/ EU/ UK/ AU(Optional) Input: AC 100-265V 50-60Hz Output: DC 24V 15A 270W Modeling Technology: FDM(Fused Deposition Modeling) Printing Size: 220 * 220 * 250mm Printing Accuracy:±0.1mm Max. Traveling Speed: 180mm/s Filament: 1.75mm PLA, ABS, TPU, etc. Layer Thickness: 0.1-0.4mm Nozzle Diameter: 0.4mm File Format: STL, OBJ, G-Code Working Mode: Online or SD offline Max. Nozzle Temperature: 255& 8451; Max. Hotbed Temperature: 110& 8451; Machine Size: 44 * 41 * 46.5cm / 17.3 * 16.1 * 18.3in Package Size:  51 * 40 * 19cm / 20.1 * 15.7 * 7.5in Package Weight: 8kg / 17.6lbs Package List: 1 * 3D Printer Set(with 5m white PLA filament)