Tbh 3d prints have high precision compared to other manufacturing methods. I think the biggest problem is some production methods make the material stronger. For example: permenant die casting and bulk metal forming. There is a limit to how strong you can make stuff by just changing the metalurgy. Another example: every bolt used in aviation must have its thread formed by thread rolling. They can not be made with chip removal methods like cnc lathes. Most bolts you see will already fit this criteria but bigger bolts might be made with lathes