About this 3D model

Three gear-shaped cookie cutters for producing culinary mechanisms. The gears have the same diametral pitch, 8 teeth/inch, so they all mesh together properly. Files are posted for 16, 24 and 32 toothed gears, with mating diameters of 2, 3 and 4 inches respectively. The center holes are 3/8" and should allow the baked cookies to rotate easily around a pencil shaft. The gear teeth have an involute profile with a pressure angle of 20 deg (in case you care). If the gear teeth break off when you're playing with your edible gears, that's just how the cookie crumbles!