Pretty much agree. There will be some companies pumping out compatible bricks but 3D printers probably won't be a big threat. Lego has extreme quality control o

Pretty much agree. There will be some companies pumping out compatible bricks but 3D printers probably won't be a big threat. Lego has extreme quality control on tolerances. Some of the knock offs will get close but 3D printers will have a difficult time matching that. Which doesn't mean there isn't a place for them in Lego fun. If you need just a couple of bricks, maybe of hard to get colors or shapes, a 3D print might fit that hole in the object. Entire projects made out of 3D printed knock off bricks? Probably won't be common.