We’ve seen plenty of plywood 3D printers before ... is more of a hybrid additive-subtractive CNC machine. A gantry-mounted router carves each layer of the print from a fresh square of material ...

[Johnie] built himself a CNC woodburner powered by the sun. Like the solar 3D printer we saw last summer, [Johnie]’s build uses a giant Fresnel lens to focus sunlight onto a piece of wood.