Eli5: On a production line, how do they make a car, plane or anything else be identical from one another without differences?

Question

Eli5: On a production line, how do they make a car, plane or anything else be identical from one another without differences?

In: 6

Answer 1

Why do you think it’s difficult to make them all nearly identical?

In an automated production line, it’s easier to make 100 pieces that are almost identical than 100 pieces that are all visibly different.

Everything is made by machines.

A machine is doing the same motions and using the same tools each time, so the end result is pretty much the same every time.