it's good for getting you the minimum feed but it told me to run a 4 flute ball nose cutting aluminum at 80IPM .1 depth cut but I pushed it to 160-200IPM 4000rpm probably could have went faster with only 2inchs of stickout. I base my feeds and speeds off chip load and get closer than this app.
Developer reply
Hello, thanks for the review.
Yes you can often push end mills far beyond calculated parameters especially in aluminums. The application's purpose is to give safe starting values which you can adjust depending on how your machine behaves.
I am working on updates which will allow for pushing harder in non-ferrous materials.