rattmmotor 3018 pro 3 axis grbl control diy mini cnc router machine kit cnc engraving milling machine working area 30x18x4.5cm for cutting wood plastic acrylic pvc pcb rattmmotor <b>package include:</b><br><br>1 set 3018pro grbl control cnc engraving milling machine kit<br>1 set er11 collet<br>1 set power supply<br>10 set 20°0.1mm drill bits<br>1 set allen wrench<br><br><b>specification:</b><br><br>working area: 30x18x4.5cm<br>frame size: 40x33x24cm<br>material: aluminum alloy<br>processing thickness:4.5cm<br>chuck specification: er11 collet<br>control software: grbl controller<br>interface: usb<br>stepper motor: 42 stepper motor<br>voltage: 12v, phase current 1.3a, phase resistance 2.1 ohms, torque 0.25n.m<br>spindle: 775 spindle motor (12-36v) 24v:10000r / min<br>power: 24v 5.6a power adapter (input voltage 110-240v), simple and convenient<br>system requirements: windows xp sp3, win7. (32/64 can be). linux; can't support apple product<br><br><br><b>grbl 1.1f,usb port cnc engraving machine control board, 3 axis control:</b><br><br>connection: usb (usb-ch340)<br>software: grbl controller,universalgcodesender<br>input voltage: 12-24v<br>master chip: atmel 328p <br>stepper motor driver: a4988<br>spindle drive chip: mosfet (recommendation 12~24v, current : within 10a )<br>spindle pwm speed: support<br>support stepper motor: 12v, maximum current of 2a or less is recommended within 1.5a and additional heat. (any stepper motor 42, 57)<br>power interface: 5.5-2.5mm dc interface<br><br><b>main application:</b>can be engraved plastic, wood, acrylic, pvc, pcb, wood and the like material.