Prusa i3 MK3 铝合金框架Y轴前板+铝型材光轴套件+U型螺栓LM8UU+驱动齿轮套件，适用于3D打印机升级与维护

Package Includes 1 x Frame 1 x Y Carriage 1 x Front Plate 1 x Rear Plate 2 x 205MM 3030 Aluminum Profiles 2 x 120MM 3030 Aluminum Profiles 4 x Antivibration Feet 3 x Stainless Steel U-bolts+Linear Bearings LM8UU 1 x Drivegear kit dual drive gear extruder kit