piece information - What is the wall thickness of a lego brick? - Bricks
What is the interference lock offset of a LEGO stud/hole such that it fits snugly into another piece? (i.e. What are the snap mechanism dimensions?) - Quora
Fusion 360 – Lego Brick Project (Part 1) – Autodesk Fusion 360 Tutorials | Free video tutorials to improve your Fusion 360 skills.