"I wanted a secure place in my base to keep all my valuable items in and have something private. I also wanted to experiment a bit more with the reddust so I'd figured the place needed a well thought trough lockdesign.
This is what I came up with and it turned out pretty neat. To get to the valuables, I need to turn the two switches in the front room to open the hidden door behind the painting. Then go down, turn on the switch, step on the plate and turn the switch off again to open the door. Standing on the switch again will close the door and reset the system.
Have a look and comment if you want me to explain the design with speech."