STL Files for 3D-Printing a Head Shell for Acoustic Test Fixture GRAS 45CA

The acoustic test fixture GRAS 45CA is commonly used to measure characteristics of e.g., hearing protection devices or hearing aids. However, it does not reflect the human anatomy as good as head and torso simulators like the KEMAR. This dataset contains STL-files for 3D-printing head shells based on a KEMAR model as add-on for the acoustic test fixture GRAS 45CA. It contains six files: The frontal shell The rear shell Spacers for the four inner corners. The spacers are used as kind of flat washers that avoid the screws to be overtightened. They can be adhered to the respective surfaces of the rear shell, e.g. with superglue.