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Keyestudio RAMPS1.4 2004 LCD Controller Panel for Arduino 3D Printer
The smart control panel includes a SD card reader£¬ a rotary encoder and a 20 character * 4 line LCD. When this control panel is connected to RAMPS 1.4£¬ you dont need your PC anymore. The smart control panel supplies power for your SD card. Further more actions like calibration£¬ axes movements can be done by adjusting the rotary encoder on the Smart Control panel. With g-code design stored on the SD card£¬ you can print your 3D designs without PC.