This thread has been interesting. There are claims both that Lego bricks are made to better tolerance, and the opposite, they they are worse. So which is it?
As I understand it, Lego moved their production out of country for a bit, but returned it because tolerances could not be met. So who are making these better, or equally good pieces now?
Full disclosure: I've 3d printed a few Lego bricks now, and some certainly came out better than others - but I did manage to get some fully adequate 4x2s printed. Now as for the angle supports for my Lego wall.. Not so much unfortunately.