Based on the feedback of the original model (and because my 8-year-old son finally damaged my first lock), I'm uploading the version 2 of the lock. Changes:

• Better fit to the switch lever. In my test, it even stays in place without the need for the screw.
• Screw with closer tolerance to the hole, better fit.

As with the original version, the objective with this lock is to install it on any switch you want to keep ON or OFF, without messing with the screws of the switch cover.

• Please ensure your plate is clean, washing with warm water and dish soap helps.
• If possible, use a glue stick for the plastic screw (it is a small part)
• Please remember this is PLA, avoid using too much force in the screw to prevent deformation.