To allow easy switching between 3D printing and Laser engraving I designed a switchbox.

A box to mount on the side of the printer and bolt to the slotted rail to hold a switch to switch from the cooling fan to a laser engraver.
For easy connection and removal of the laser, a 2 pin JST male connector is mounted on the top of the box to plug in the laser,

Creality

Ender 3

No

Yes

For easy connection and removal of the laser, a 2 pin JST male connector is mounted on the top of the box to plug in the laser,