Blender assets
I make 3D assets for scientific illustrations in Blender (my 3D illustration software of choice) freely available on my Gumroad page.
These assets are intended to support and speed up the workflow for any person wishing to create scientific illustrations. In return for these assets being open-source and free to download, I ask that any users provide attribution to Ryo Mizuta Graphics wherever this asset is used for commercial/published academic work (e.g. publication figures, presentations, etc). Please consider tagging any posts on Twitter (@Ryo_M_Graphics) and Instagram (@ryomizuta_graphics) whenever this asset is used/publicized on social media.
Youtube tutorials
I also create tutorials on creating 3D scientific illustrations in Blender, as well as walkthroughs of my 3D assets on my Youtube channel. Check them out here.