Guillotine
The Guillotine was an execution apparatus designed to decapitate someone. It was prolifically used during France’s Reign of Terror during the French Revolution.
As far as printing instructions go, I printed at 0.2 mm thickness, 55°C bed temp, 215 °C nozzle temp, 0% infill and it turned out fine with virtually zero defects (printed using Anycubic Kobra S1).