This is the larger version of https://www.myminifactory.com/object/3d-print-112217 for your-hiding-stuff-inside-a-book-needs!
Create your own cover with your favourite CAD, simply by drawing a 54x70x1mm square, with 45 chamfered edge on the bottom!
The book is assembled as follows:
Separate the two sides of the Cover after printing.
Remove the built-in supports under the hinge and the lock pin.
Clean all finish all parts.
Do a test fit, make sure the Upper and Lower Pins go in all the way without resistance and spin freely, and the pages fit nicely.
Insert the pins and glue the Pages to the back cover (this goes over the pins ends, locking them in place).
Hide your things.
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