New 3D printer manufacturer HYREL has developed an extruder capable of 3D printing clay. In the video below you'll see it printing a pyramid. A simple print indeed, but one that proves it's possible.
The HYREL line of 3D printers includes an interesting feature: "multiple hot-swappable extruder head options." If the clay extruder is offered as one of those options, this could be an easy way to enable printing of both clay and plastic.
3D printed clay on a consumer-grade 3D printer is a very important development for one reason: food safety. Plastic extrusion machines can print many kitchen items, but none are food safe. A clay print could be fired and glazed in a kiln, producing a surface that could be food safe.
Let the coffee mugs emerge!