Depthai & OpenVino
Depthai install files:
~/depthai
resources/nncontain the model json files. When these run they download the blobs into:~/.cache/blobconverter/

Converting to Blob
Use the Online Blob Converter
Or install locally:
python3 -m pip install -U blobconverter
To convert:
python3 -m blobconverter --openvino-xml /path/to/custom_model.xml --openvino-bin /path/to/custom_model.bin
References
Errors
-- Configuring incomplete, errors occurred! See also "/Users/martinwhite/DepthAI/depthai-python/build/CMakeFiles/CMakeOutput.log". See also "/Users/martinwhite/DepthAI/depthai-python/build/CMakeFiles/CMakeError.log".