Ender 3 end cap switch mount

thingiverse

I sought a tidy spot to mount a switch for turning lights on and off. This setup should work fine with an Ender 3 as long as your screen isn't mounted on the right side or the main board on the left. To connect everything, you'll need to run wires inside the tube to the back. It's highly advised to use shrink tubing or similar methods to cover those wires on the inside, just in case they don't rub through and short out on the screws holding your base together.