Feature: 1. WORKING STROKE: Frame is mainly made of aluminum alloy and engineering plastics material, with high strength and high accuracy. The working stroke of this engraving machine is 300(X) x 200(Y) x 40(Z) mm, ensuring enough functional area for different workpieces 2. UPGRADE THREE AXES: Three axes are carefully crafted to realize plane engraving. The axes can be moved manually using the knob, which facilitates the setting of the engraving tool. The drive unit consists of a T8 stainless steel lead screw with 4mm lead. Use double copper nuts to clear round trip errors 3. GRBL CONTROL: GRBL control has XYZ axes driver and all functions, can be used with offline controller for offline control 4. HIGH EFFICIENCY MOTOR: Equipped with three 42 stepper motors and one 775 (12‑36V) 24V spindle motor with a speed of 10000r/min 5. SUPPORT SYSTEM: The engraving machine supports for Windows XP SP3, for win7, for win8, for win10 (32/64), for OS X system and other software to directly import JPG, BMP, PNG, DXF format files for engraving Specification: Item Type: CNC Engraver Machine Control Software: GRBL control Frame Size: Approx. 390 x 320 x 230mm / 15.35 x 12.6 x 9.06in (excluding motor protruding part) Working Range: Approx. 300 x 200 x 40mm / 11.81 x 7.87 x 1.57in Screw: T8 screw, lead 4mm, double copper nut to eliminate backlash Stepper Motor: 42 stepper motor 1.3A 0.25N.M Spindle: 775 Spindle motor(12-36V) 24V 10000r/min Chuck Specifications: ER11 3.175MM (can be equipped with 0-7mm) Body Material: Aluminum, engineering plastics Power Adapter: Input: 100-240V Output: 24V 5A Support System: For Windows XP, for win 7, for win8, for win10 Interface: USB Machining Command: CNC: G-CODE, TAB, NC, NCC file. Package List: 4 x Aluminum Alloy Frame5 x Engineering Plastic Board Frame4 x Linear Guide2 x Lead Screw1 x Host1 x Power Adapter1 x EU Power Cord1 x Motherboard1 x Spindle2 x Motor5 x Y Axes Slider1 x USB Data Cable4 x Motor Wire1 x U Disk1 x Power Cord Protective Cover1 x Brush 6 x Wrench10 x Milling Cutter67 x Screw33 x Nut4 x Metal Gasket10 x Cable Tie3 x Spring5 x Accessories1 x User Manual11 x Plastic Gasket Note: The 3020 model manual uses the 3018Pro manual, and the installation and use methods are exactly the same.