Corner Turning Octahedron Twisty Puzzle (CTO)

thingiverse

A 90-degree turning, corner-twisting octahedron. It operates mechanically like a regular 3x3 Rubik's Cube without corners, making it nearly identical in terms of solving techniques. Each corner can be turned independently in increments of 90 degrees, and each small tip can also be rotated. To create the puzzle, print out each piece as indicated on the filename: * 6 Cap * 6 Tip * 6 Center * 12 Edge * 8 Corner Corners are not necessary for function, but they do improve stability. I highly recommend printing them. You will need 6 M3 screws and optionally 6 springs. Standard 3x3 screws can be used and purchased here: https://thecubicle.us/moyu-weilong-hardware-p-1666.html Stickers can be cut from the attached template, which includes a standard 3x3 color scheme as well as purple and gray colors.