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Modern Casting

That Must Be One Big Cup of Coffee

Metalcaster

spoon sculptureThe “Viseum” in Wetzlar, Germany, is featuring a 7.5-ft. cast bronze, nickel-plated spoon—the largest utensil manufacturer WMF has ever produced. The sculpture is designed to highlight the reflections and optical distortions of looking into a polished bowl of a spoon.printed model

The CAD data of the original spoon was adjusted to the required size on the computer. This data was then transferred to a voxeljet VX1000 printer, which produced a plastic model of the bowl of the spoon using a layer building method. The printer produced the entire model in approximately 10 hours, from thousands of 0.00591-inch (0.15 mm) layers that were selectively glued together with a binder. The large build space of the machine made it possible to print the bowl in one piece at 33.5 x 16.4 x 7.5 inches (850 x 416 x 192 millimeters).spoon sand mold

The unpacking process, during which excess material is removed from the model, was followed by a stiffening process using artificial resin and subsequent finishing. This method did away with the construction of a negative mold, resulting in significant cost and time savings. The printed PMMA model was used to quickly generate a sand mold that was cast in bronze.

“Not least due to 3D print technology, this project was completed quickly and without any problems,” said Gerd Greiner, manager of the WMF model building studio in Geislingen, Germany.
bronze spoon polishing

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