Before getting to the microwave kiln, the pencil mold needs to be prepared. A 3D-printed pencil is first created with the graphite core, and then [Denny] uses a plaster of Paris mixture to create ...

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Cement startup Furno will receive a $20 million grant from the Department of Energy, funds that will help the company build up to eight micro-kilns at a concrete plant in Chicago. Chicago might ...