Excellent idea and print. They do in face fit normal legos (this was immediately tested thoroughly by both of my kids). Will make a great little Christmas/bday present when you're trying to fill in the gaps. Thanks!
Printed and works well with all the bricks I tested it with. The only change I made was to use PETG as a support interface to make the support much easier to remove.
It was a file I transferred from Printables. Printables made me add a fire hazard and I thought I should keep it so Maker World doesn't come after me for it.
But why do they think it's a fire hazard? Does a manufactured cover have some kind of air sealing that suppresses fire spread? Seems crazy. We've printed a couple and love them. Just came back to print another one and saw this, now I'm curious.
Could you possibly add a blank plate? Like, no switch or outlet hole just all Lego for places needing a solid cover.