12mm bus power switch shield

A protective cover designed for 12mm rocker switch, because the bus switch protective cover used in aircraft cannot be easily purchased on the market, so I drew this model, suitable for conventional 12mm two-position rocker switch, this protective cover can Lock the rocker arm when the switch is on or off to prevent misuse.
Please use 2x20 PIN optical shaft for the shaft of the cover. The printed part has already drawn positioning holes for the shaft. After printing, please use a 2mm drill to expand the hole to install the shaft.