Matched Materials: 1.Cork wood(soft wood); Melamine mdf; Composite board; Plywood; Originalwood; PVC: Acrylic sheets; Resin;Low density tablets; Aluminum; Magnesium, etc. 2.For iron, cooper, steel, the max engraving depth should be lower than 2mm. and every engraving depth should be 0.1mm better with adding water to avoid abrading. Unmatched Materials: Other materials that it"s hardness higher than steel, like tungsten steel. More Precise Stepping Motor ,The engraving process is visible as controlled by computer,Simple operation and installation.Engrave almost anything on almost any surface,X?Y?Z axis carving make more precise and and three-dimensional effect.Cover plates reducing pollution for the screws and shafts.Anti-blackflash,high precision,long life circle.It can be upgraded to be installed a rotational axis. Features: 1.200W spindle grinding spindle lift (standard), fast (up to 20,000 rpm / min) and high efficiency. Optional 30W DC motor. 2.Gantry mobile, rugged, small inertia, dynamic performance, prolonged use of deformation, so that more precise positioning accuracy. 3.Signs not only make no serrated carving fine, smooth contours clear bottom. 4.Three-axis, the use of imported drive screw, so that more accurate positioning, repeat the process more accurate. 5.Full support for MACH3, Wentai, TYPE CNC and other commonly used software systems.