A short guide on easily exporting models between Blender and Unity.
RenderHJS:
Blender 2.79: https://bitbucket.org/renderhjs/blend...
Blender 2.8: https://github.com/TiliSleepStealer/b... (untested and not sure if this is author approved, use at your own risk)
Author website: https://www.renderhjs.net/
My Asset Postprocessor (NOTE: Must be placed under a folder named "Editor" as it is a unity editor script): https://gist.github.com/Glynn-Taylor/...