The best machinists has years of experience and often times working under seasoned machinists. Always thinking outside the box, and earning what works and what doesn't. The newest and greatest machine does not guarantee the human behind the controls can machine the perfect end product. Rather a great machinist will receive great results on an old clunker. He knows the machines quirks and capabilities then works around them. Indeed a precise machine makes the job easier, and I'm feel fortunate to have a shop full..
I've worked around hundreds of machinists over for nearly seven decades. And was taught by Father, one of the best. When I was in my 20's I was trying to bore a 4” diameter hole in a piece of hardened 4140 ten inches deep. Using a tired old South Bend Lathe in my garage. My father stopped by and did his magic. He fastened a 2”bar directly to the carriage with a round 3/8” HSS blank tool bitfor a boring bar. Ran the lathe in reverse and cut on the back side of the bore with the tool bit upside down. He placed a rope from the boring bar to a pulley on the ceiling joist with a heavy weight on the other end to eliminate thechatter... Within a few hours the operation was complete..
In contrast the shop I was in charge of a machine shop that just purchased a brand new 15” Cholchester Lathe. A so called top rated machinist spent a week trying to make six a simple parts. Always missing the mark and scrapping the part. He blamed the new machine and suggested we return the lathe. He didn't last the month before he got his walking paper's..