The UnaBox

• Following the plan, drill a hole in piece 11 and a slot in piece 9 that your screw will slide through (to cut the slot, drill each end and then thread in a saw blade). Also drill smaller holes in the pieces for the locking pin, running the drill only partway through piece 9. Drill both holes with the 2 pieces stacked together to make sure they align.
• The diagram in the downloads section shows how the parts of the UnaBox fit together. With precise cutting, the bottom and sides of the box, parts 1­–5, should assemble with almost no glue; use small clamps to hold them while the glue cures.
• Glue stacked pieces 6–8 together and glue them to piece 1, the bottom of the box. Also glue together pieces 9 and 10 for the box’s top. Once you’re done with the glue and the clamps, drill pieces 6–8 to hold the bottom of the pivot screw.
• Finally, finish the box with a good natural wax and polish it. This makes the most of the wood, and gives it a nice smell and touch that kids love.

The closed box gives few clues to how it’s opened. You need to remove the peg and swing part of the top away before the rest of the top has enough clearance to slide back and swing open.

So far, we’ve built 2 of these boxes: the first one with olive wood, the second with cherry. If you build your own UnaBox, we would love to hear from you at [email protected]