Just LOVE it…and anything math related! Thanks for sharing 
I just cut your file, and seek knowledge on assembly. The top doesn’t have magnets, do you glue one of the layers to the top? The “Hexiamonds” engraved layer - is that the bottom of the stack? Sorry, I’m trying to see all the pieces from the images, but not sure as to the top and bottom layers
The underside of the top is shown at the right in the bottom photo of the original post. The top consists of two parts glued together: The actual solid top (the one with the engraving on it) and a layer consisting of a thin rim with wider places for the top’s magnets. You glue the thin rim layer to the underside of the solid top layer, and insert the magnets in the rim layer’s corners.
Make sense?
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yes, thank you. I was trying to use the thin rim on the bottom layer and then lay the puzzle layer on top so that the pieces were flush, but realized the pieces are meant to sit above the puzzle design. Thanks again, I love these puzzles.