Ender 3 pro 4.2.2 printer.cfg July 8, 2019 16 32 64 128 Ender 3 4.2 2 printer cfg Ender 3 v2 4.2 2 printer cfg Ender 3 4.2.2 vs 4.2.7 Ender 3 v2 4.2.2 vs 4.2.7 Ender 3 not printing correctly 4.2.7 ender 3 board