About this 3D model

Unlock a little joy this season with this tree ornament that conceals a locked compartment. Rotate the tree levels to find the combination that unlocks Santa's secret compartment. Great for small gifts (cash, other 3D-printed wonders, etc). How it Works Tree has 3 rotating levels User needs to align branches on bottom and middle levels with base (36 possible combinations) to unlock the secret compartment The top level also rotates, but it's just a red herring / isn't needed to unlock the compartment ? Design is ready to remix and add some more flair: Add some snow to the tree sections if you have multi-color printing Draw some additional decorations on each section to orient yourself ? Parts List ? Tree, Top ? Tree, Middle ? Tree, Bottom ? Base ? Key ? Aluminum Shaft: ø3mm (1/8") x 70mm (2 ¾") ? Glue (2-part epoxy or superglue) ? Assembly ?Carefully snap the tree sections together. Locking features should keep the pieces assembled but let them rotate independently. ? Chase the holes in the base and key to ensure a snug fit with the locking shaft - a hand vise and drill bit work well for this ? Dry fit the base, shaft, and key and check to make sure the shaft length is correct to engage the lock on the upper tree section ? Glue shaft to base and key with glue - make sure that key tangs are aligned with dot on bottom of base ? Load up with your secret gift, assemble base and tree, and rotate to securely lock ? Hang in your tree with fishing line or ribbon! Have feedback? Please add a comment as I continue to refine the design to ease printing, assembly, and use!