Ability to print directly from an SD card – you do not need a connected computer to print on a 3D printer
When connected to the RAMPS controller, the 2004 LCD panel allows you to fully control the RepRap 3D printer without the need to connect to a computer.
The module allows you to calibrate and control the operation of the device, as well as to print 3D projects from SD cards placed in the reader located under the control panel.Printing directly from an SD card gives you much better results than printing via a USB cable from your computer.
has a contrast adjustment (potentiometer)The intelligent controller consists of an SD card reader, a rotary encoder, and a 20-character × 4-line LCD display. You can easily connect it to your ramps 1.4 board using the “smart adapter” listed.