Why can’t we just 3d print human-sized legos and build working structures/vehicles with them?

Question

What would go wrong with upscaling legos?

In: Engineering

Answer 1

Building a full sized house has been done with normal sized Lego bricks, 3.3 million of them. Part of a BBC TV series of doing ridiculously large projects with toys by James May (of the Top Gear motoring program)