There are machining manuals or technical books that show how to calculate speeds and feeds, Drilling and tapping, knurling, bolt cirles, angles trigonometry etc. There are different discplines, mechanical, such as those listed above, mathematical, and G-Codes and cad/cam software for programming toolpaths for C.N.C. Basic mechanical and mathematical studies are the best place to start, along with blueprint reading. Then when the basics are understood, The language of C.N.C. (G-codes, tool offsets, sub-programs etc. should be learned. All great C.N.C. machinists can perform manual machining more so than manual machinist can operate C.N.C. machines. Look at your Jr. colleges then if no luck try a trade/tech. school. The Jr. College is the best bet compared to a "for-profit" Trade school. There are downloadable software for Machining. I will re-post some links when I get back .
Here:
http://www.cncprogramdeveloper.com/ http://www.sme.org/cgi-bin/getsmepg....me.html&&&SME& http://www.emastercam.com www.metalwebnews.com http://w3.uwyo.edu/~metal/ http://www.metalwebnews.com/ http://metalworker.org/ http://www.moldmakermag.com/index.html
Get ya' some !!!!!!!!!!!