I’ve loved the Rob Ives creations for a long time. If I could, I’d subscribe for life. Anyhow, check out his amazing mechanical safe papercraft.
A fully working paper safe to download and make. Dial in your secret combination at the dial on the front of the safe to unlock the hidden drawer. Print out the parts onto thin card. (230 gsm / 230 micron) and let the ink dry completely. Carefully score along all the dotted and dashed lines then cut out the holes with a sharp knife before carefully cutting out the parts. Accuracy is very important in this model to make sure that the locking sleeve moves up and down easily.