Ender 3 Power Off after print

thingiverse

After printing, the printer strictly adheres to a maximum Z-axis height of 250 millimeters and breaks the voltage circuit with a built-in microswitch.\r\nCritical command end-gcode:\r\nG4 S300 enables a three-second delay before the print head moves up to its designated Z-axis limit of 250 millimeters, at which point the printer's circuit is interrupted by the microswitch.\r\n\r\nsee also\r\nhttps://www.thingiverse.com/thing:3333899