New job at work (machinist)

Reminds me of a part we ran for Michelin. It was closer to 8 inch O.D. . It had threads inside about 2 inches deep. First a 2 inch centerless drill, then its offsets changed to run it as a boring bar to hog out. Last step was to weld a handle on its outside.
Did yall have issues with chattering I.D. tooling? We had to buy a couple of special bars for final passes to get the req'd finishes.
I enjoyed CNC programming and operating more than anything else I've done in this life... including sex. Don't tell her I said that. The double spindle Miyanos were a lot of fun but that shop did run the same parts over and over again. Took about 4 years to get bored with it.
The shop that took in the one off emergency parts for local companies was the most challenging/rewarding.
Imagine having one piece of material, one shot to get it right. It's bronze. It has a 4 start 20mm pitch left handed acme I.D. thread 6 inches through. Its got a 4 inch O.D. (6 or 8 bolt, I forget) bolt flange in center of it length. So its a long nut more or less for a motor operated material gate.
They didn't pull the screw and bring it along to check/prove the nut. They climbed a ladder, pulled the worn out nut. That's all I had to work off of.
I had to test cut the threads in a scrap piece of aluminum about 2X2 and measure.
Then I find the only thread bar long enough for this part in house is right hand. I gotta cut left hand threads from inside out.
A mechanic from the local 3M plant is hanging around waiting for this part.
7:AM to 10:35PM for one part we may never make again. That mechanic had to go climb the ladder and screw this nut on, get their line running again. I drove home with my fingers crossed.