I know you can set your zero height to bottom and use t as depth of cut in the tool path. I saw a formula for t/2 to make depth of cut half of your material thickness. What other formulas can you use. Could you do t+0.1 to make it material thickness plus .1 inches. Any samples would be helpful

I think it would be more common to see t+0.005 (or some very small value) to cut just a smidge beyond the bottom of the part.

You can also use t in the depth per pass field, but it won’t hold it. You have to type a = after to calculate it. i.e. t/20= if you want 20 cuts to get to the bottom.