1、This kit contain complete supporting facilities, made of excellent aluminum alloy materials 2、This is a DIY kit with a lot of possibilities. This complete CNC kit is compatible with for GRBL(requires firmware installation) 3、Possess all the basic electronic parts needed to set up CNC, laser engraving machine or robot 4、3D printer CNC kit is light weight, possess good strength and good corrosion resistance 5、Can be used for 3D printer, a variety of accessories can meet your different needs Item Type: 3D Printer CNC Kit Material: Aluminum alloy Motor Model: 5628 Motor Shaft Diameter: Approx. 8mm / 0.3in, 6.35mm / 0.3in Input Voltage: DC9-40V Input Current: Recommended switching power supply 5A Output Current: Maximum 0.5-4.0A, 160W Power Consumption Breakdown: 1, 2 / A, 2 / B, 4, 8, 16, 32 Working Temperature: -10~450℃ Storage Temperature: -40~70℃ Humidity: No condensation, no water droplets Purpose: 3D printer 4 x 5628 Motor 4 x Motor Wire 4 x Drive 4 x Limit Switch 1 x R3 1 x USB Cable 1 x CNC Expansion Board 1 x User Manual