Book "Safe" for Reddadsteve's Opus

This is a remix of book # 3 (the largest book) on Opus' shelf, which I made with a hollow inside to store 'whatever' in and some slots for 8mm x 3mm magnets so it can easily be opened without having to worry about it falling apart when someone takes it off the shelf to examine it.

Video of book safe in action: https://www.youtube.com/watch?v=aPGdFZMTi3o

Each part prints without supports; there's minor bridging on the 'pages' part but it should not be a problem for most printers, and there's enough clearance on the parts that hold the magnets to join together that a little sagging won't matter anyway, plus you won't see it when the parts are snapped together.

I ran an xacto knife around the inside of the holes for the magnets for like 2 seconds to clean off the interior so the magnets fit better; you may or may not need to do this (I was using a larger nozzle and Draft quality settings for layer height.)

Just glue the magnets in (ENSURE THEY ARE FACING THE CORRECT DIRECTION