Useless Box (Scotch Yoke)

thingiverse

This clever device takes rotational motion as input when you turn the crank and delivers oscillating linear motion with ease. The inspiration behind this innovative creation is owed to a similar concept shared on reddit, which sparked an idea that I couldn't resist bringing to life. While some parts may be a snug fit, they're designed this way to ensure the box snaps together seamlessly. If you encounter any stiffness or catching during initial rotation, simply give it a few gentle twists and it will loosen up quickly. Unfortunately, a captivating video showcasing its functionality is currently unavailable due to technical issues with my computer. However, I invite you to use your imagination or better yet, try building one yourself – after all, that's the best way to truly experience its clever mechanics!