Illusion
grabcad
Using online resources, I stumbled upon an image of this intriguing construction but couldn't locate the instructions for its assembly. After some experimentation, I managed to replicate the optical illusion. If you're up for a challenge and want to try figuring it out yourself, avoid peeking at the STP/STL files. For a visual demonstration, refer to the build instructions available on Instructables: https://www.instructables.com/id/Wooden-Illusion/. Alternatively, you can watch this video for an easier understanding of how it works: https://youtu.be/b3vbaZP2cL8
With this file you will be able to print Illusion with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Illusion.