Whilst I was waiting for printer parts to arrive I’ve been playing around trying to get a display and encoder to work with my chosen printer control board, the Printrboard. The Printrboard was designed to be used with the Printrbot but isn’t limited to it.
Fortunately very shortly after I purchase the Panelolu kit Tony who builds the kits had written a post about interfacing with the Printrboard. Unfortunately in his haste to tell the world there were a few pin & code errors found and after a few emails back and to the LCD displayed data from the Printrboard. SUCCESS!
There is a MicroSD slot built on to the Printrboard where you can load G-Code using the rotary encoder and the display and print without an attached computer.