Software: The 3018-PRO uses Grbl, with high performance and low cost, is based on parallel port motion control for CNC engraving.The CNC3018 PRO machine is very easy to install, stable structure ,take only about 20 minutes to assemble.(The package will come with a DISK that includes assembly instructions and software.) Simple Assembly: Some components and core components have been assembled.All components do not need to be positioned, which greatly reduces the difficulty of assembly and improves the working accuracy. Upgraded Version: CNC 3018-PRO is an upgraded version of 3018.CNC 3018 Pro GRBL Control DIY Mini CNC Machine, 3 Axis PCB Milling Machine, Wood Router Engraver with Offline Controller, with ER11 and 5mm Extension Rod