This is a reversible ratchet mechanism fully 3D printed, featuring integrated springs and fully functional moving parts. It can be used as a mechanical study model for engineering and design, as a demonstration hand tool, or simply as a satisfying fidget gadget thanks to its clicky feedback.
The ratchet and pawl gear allows locking and rotation in both directions, just like real ratchet screwdrivers and wrenches. Perfect for makers, hobbyists, students, and anyone curious about mechanics.