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facility prototype shop. Deere was also able to pare eight weeks from the product development time of each build via 3-D printing. “We worked on a once or twice weekly basis with engineer- ing as the design was being developed because we had a core manufactur- ing strategy that we were pursuing and we asked for a myriad of changes in the casting design to accommodate that,” Childers said. “Plus we asked them to make


With its cast drive housing that utilized 3-D printed molds to save eight weeks on each build, the 9RX 4-Track hit the market in February.


changes in the casting design for directional solidifi cation and for the fl ow of stresses through the casting. We made some design suggestions that made the casting stronger and stiff er.” After the fi rst durability build,


Deere asked for a reduction in mass.


30 | METAL CASTING DESIGN & PURCHASING | Jul/Aug 2016


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