Welcome!
Age is NO barrier, some are older than you!
You have a background in Engineering, so the machining processes will be familiar, and most certainly the measuring techniques (Possibly better than many of us! )
Whereabouts are you located?
If possible, find a local M E club and join. Your memories will soon be revived, and you will be able to help others as well.
Howard
Edited By Howard Lewis on 22/10/2021 08:17:25