Ender 3 Gcode is straight-up "Plug and Play".    Load the files to a micro SD card, insert into your Ender, select  "print",  and watch a jet liner appear out of thin air. Ready for a satisfying build and ultimately, a very proud flyer.  Remember,  Ender 3 Gcode can be used in other similar machines. Please see the "print specs" page on our site at Flyhm3d.com for a list of known compatible printers.