Lego Specifications | Orionrobots - Learn to build robots at home
Measurement
3D lego bricks 35 pieces - TurboSquid 1375716
Lego brick blueprints Digital Art by Dennson Creative - Pixels
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