Zero-G Knife - Fidgety OTF Utility Knife

Print your own fully functional, Zero-G inspired OTF utility knife! This fidget-friendly project features a satisfying mechanical action but requires a well-calibrated printer due to tight tolerances. Important: To assemble it, you MUST purchase extra hardware: one M3xD5xL3 threaded insert, one M3x8mm screw, a 3x30mm tension spring, a 2x10mm compression spring, six 5x2mm magnets, super glue, and a standard utility blade.