Ultimately, MAKING a machine tool (part or machine) takes a MUCH more accurate machine than the machine component you're trying to make.... |
This is an interesting statement and not strictly true. If it were true, then we would have no machines at all. When the Earth was formed, a super accurate machine would have to have been created to produce all of the inferior, less accurate, machines we have today.
The Gingery book series is a good example of making machines more accurate than the tools used to build them.
He describes building a lathe from scratch with very basic hand tools. Once you get so much built, the lathe actually builds it's self.
Mrbean.