Setting up ball nose mills in Fusion 360

[Desertboy]

yes the R is for radius so the r2 will be diameter of 4mm etc. To set it up in fusion, got to the ,manufacture tab, and the click on manage at the top right of the screen. In the drop down menu select tool library. I personally keep all my tools under the "local" folder so click on local and then mills. in top right click on new mill tool, leftmost of the five icons there and under the cutter tab you can select the type of tool, ballnose being one of them, and input the diameter and length parameters of your tool

That worked perfectly thanks machine is finally doing exactly what I want it to.