Top 4 parts open source projects

Repo-Bio
Binomica Public Repository for Biological Parts
OpenShapes
A data-driven approach for interactively synthesizing diverse images from semantic label maps.
AWESOME-LDraw
LDraw — awesome software, file format, parts library and model repository (3D models of LEGO® and LEGO-compatible bricks)
1-4 of 4 parts projects