PRECIOUS METAL OPTIONS FOR 3D: Shapeways, the online 3D printing service, has added four precious metals to its material options. Platinum, 18K yellow gold, 14K rose gold and 14K white gold join 14K yellow gold and sterling silver to give jewelers more creative options and finishes without the need to keep any inventory.
Shapeways said the metals are 3D printed using a wax casting process. That is followed a liquid plaster poured over the wax cast, after which the wax is melted out and the set plaster becomes the mold. Molten metal is poured into the mold. After the metal hardens, the plaster is broken away. The metal then is polished to get its luster.
Shapeways said shipping times vary per metal, but typical deliveries on custom products ordered on its site are received in two weeks.