Mechanical paradox - Wikipedia
I've very happy to find this model here on maker world
Magic Mechanical Paradox by impietro - MakerWorld
I've been so fascinated by it that I've also drew one myself. It glides a bit smoother and is larger. My daughter was immediately captivated by it, and I’m sure that anyone who sees the printed project will be impressed!
Enjoy!
-- PRINTING PROBLEMS --
I know how frustrating it can be to have problems during a print, and I’m happy to receive constructive criticism or suggestions about the model, but please always calibrate the flow and if you have adhesion problems, try using the brim or a gripper. All these fails are not due to the model.
All my files are tested before being published and the print profile with which I succeed is the one I publish.
Thank you very much for your understanding and happy printing to everyone!