Brought over 8 months, to make pieces to sell online and boot markets. Never got round to it now looking to sell. brand new never been out of the box. 3018 PRO DIY Mini CNC Machine can support offline and work without connecting to a computer. Note: 1.If the engraving machine is connected to the computer, please do not connect an external control module, otherwise the communication will be blocked. 2.It can work by offline controller and will be convenience. 3.Suitable for small amounts of entertainment.Does not support industrial using.