2x2x1 Twisty Puzzle

thingiverse

This puzzle is one of the simplest, making it accessible to anyone. To create your own, you'll need to print three corners, a core piece, and an internal component - all file names contain this information. Additionally, you'll require an M3 screw and a spring for optimal performance. Although I haven't printed this model, I've used it as a base for my 2x3x4 puzzle, which has shown to be highly effective.