This LCD cover is designed to be used with a Prusa i3 printer **at the moment it you can use the holes on the back cover to drill into your upper prusa frame but I will be working on something that will slide over the top of the frame The LCD itself is available at RepRapDiscount: http://reprap.org/wiki/RepRapDiscount_Full_Graphic_Smart_Controller) and works with the newest Marlin firmware and probably with other ones. The design is a little mod of pablogil's one: http://www.thingiverse.com/thing:213852