Scrapper of metal
I didn't see this in the video. (Yes, I watched the whole video.) I did understand his point about splitting the cut. It's a good lesson. Something I never did before but fully understood. I might try it more in more detail another day.
I guess I am a "forum idiot who sneaks up on my dimensions". However, I have only blown a few in a few decades so I'm not accepting his criticism. In fact, unless I'm missing something I'd say that I use the same technique on sneakups as he does with bigger cuts. Basically that is to measure, set a cut, take a cut, measure again, take the same cut or very close, measure again, etc. The key being to take the same cut so spring back etc are accounted for and you are not chasing your tail.
I can't wait to try it with bigger cuts.
But I did not see anything in his video about this business of nose radius limiting the minimum cut.
I didn't learn the nose radius thing from Stefan. That I learned from folks over on Hobby Machinist when I asked why I missed dimensions. After explaing the setup, tooling and material someone said that the nose radius of that insert is xyz so any cut has to be at least that.
Then I was referred to that video as a primer on hitting dimensions.
Nothing more, nothing less and certainly not calling anyone an idiot. I'm just reflecting my learning about insert tooling...