Hello young Steemian! I'm very happy to see an engineer. We have plenty of biologists, people from all areas of chemistry but engineers - no.
My advice to you is to write about something specific. There are way too many posts about something non-specific and reading book/Wiki style posts is a bit boring.
If you start writing blog-style posts, with your own photos and some example of the problem solving I'm sure you will get the atention.
RE: Milling Machine : An Overview To This Awesome Machine