This panel connects your RAMPS 1.4, you do not need your computer, your SD card intelligent controller power supply. All further operations, such as calibration, the axis movement can be done only with a rotary encoder intelligent controller. 3D design print without a computer, just use the G code stored on the SD card designs Features Popular RepRap 3D Printer LCD Controller and SD Card Reader Using a large screen LCD 2004 4 lines of 20 characters per line Included adapter for RAMPS 1.4 board 3D design print without a computer, just use the G code design stored on the SD card The smart controller by the encoder creates all other operations, such as calibration or axis movement, etc
