Hamburger Press

thingiverse

Press is one print. Cut apart center disc (webs between center disc and ring) and sand smooth outside of center disc, and inner surface of press, where the meat goes. A dremmel (if you have or can borrow one) makes smoothing edges easy. Press meat into press into a dish shape; thinner in the center and even with the outer edge of the ring. If meat is pressed in even across press, the burger will become rounded while cooking, and look like a meatball.