I was thinking about it for a while: The instruments to produce things and to measure things improve in precision as the technical progress goes on. For example modern machine tools allow us to produce things with tolerance of 1 micron or less. But this machine tool was made with something And that thing was made with something too. And since the tech level was lower back then you’d have to make a more precise machine tool using a less precise one. How is this possible?
In: Engineering
If you know the goal and doing something with hands you will get various result, ie an axle with tolerances +-1 mm. Some of them will be better, some of them worse. But some will be 0.1 mm. By hand picking you take better parts and build a more precise machine.
Latest Answers