Shutdown switch ENDER 3

thingiverse

Shutdown for Ender 3, possibly suitable for CR10, though I haven't tested it yet. I used a micro switch rated at 3A, but you can opt for a 5A one of the same size; the maximum current to cut is approximately 1.4A (when the bed and nozzle are both heating up), however, the shutdown occurs after they've been turned off. Adjust the switch position in the profile and attach the switch activator to the bed fix plate with glue. My end G-code script: Home the X-axis with G28 X0. Retract filament 12 mm at a speed of 1800 mm/min to prevent oozing with G1 F1800 E-12. Turn off the bed heater with M140 S0 and the heaters with M104 S0. Pause for 240 seconds to allow the nozzle to cool down with G4 S240. Disable the cooling fan with M106 S0. Produce a high-pitched sound effect lasting 2.49 seconds with M300 S2349 P240, followed by another one of equal duration with M300 S2349 P360. Home the Y-axis with G28 Y0 and then move it +235mm at a speed of 1000 mm/min to reach the switch with G1 Y235.0 F1000. Disable the motors with M84. Required components: Micro switch - either 3A or 5A Two M3x5 flat-head screws Two T-nuts and two screws (from stock) The micro switch is in series with the stock 230V power switch. Contact North Carolina for more information on the switch.