Ender 3 pro homing failed printer halted July 8, 2019 16 32 64 128 Ender 3 pro homing failed printer halted please reset Ender 3 pro homing failed printer halted cr touch Ender 3 pro homing failed printer halted bltouch Ender 3 s1 pro extruder not working Ender 3 not printing correctly Ender 3 s1 pro clogged