Shape Shifter
From one perspective, the cylinder appears circular, but from another perspective, the cylinder appears to be square. In fact it is neither.
Materials
- this 3D-printable file, or something similar
- 3D printer
- 3 small mirrors, about 12.5 cm or 5 inches on a side (optional)
Construction Instructions
Download the file and 3D print it. Or, you can search "ambiguous cylinder illusion 3D print" on the internet to look for other 3D-printable models.
The illusion will work as is, but if you want to view the model from multiple angles at the same time, you can make a little mirror box. Take 3 small square mirrors and hot glue their edges to make three sides of a box, then reinforce the glued edges with duct tape on the back. Put a thin strip of duct tape along the exposed edges, as a safety measure.