“Now with 3D printing, we know exactly or with a high degree of certainty that we’re getting the parts to be the correct size.” - Russ Schreiner on the quality improvement of production using EnvisionTEC Hearing Aids in 3D The first 3D printed shells were manufactured in the mid-nineties. While the printers could do their job, according to Schreiner there wasn’t enough support for the process in the form of scanners or software for

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