terminology - What are LDUs and how do they relate to LEGO bricks? - Bricks
Brick | Brickipedia | Fandom
1418 TIPS: LEGO dimensions and units
Basic dimensions of LEGO® toy bricks [20] | Download Scientific Diagram
Converting Lego measurements to scale lengths. | No B.S. Just A.B.S.
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