If the microphone capsule you use has different dimensions, don’t hestitate to modify the Freecad binaural_mic_support.FCStd file. A layer height of 0.1 mm is recommended.īesides, the STL file is adjusted for a 6x5 mm microphone capsule, for flexible filament. To print the left ear support, just mirror the STL in your 3D printer slicer. The STL file binaural_mic_support.FCStd corresponds to the microphone support for the right ear. The Freecad part and corresponding STL file are available here: The first step is to print with flexible filament the microphone supports to wear in the ear. 1 m of PLA or other rigid plastic filament for the adapter part,.1 3xAA battery holder with swith on/off,.1 MAX9812L dual channel electret microphone preamplifiers board,.Other dimensions are possible but will requires to change the support CAD accordingly,
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