I have a question about Slic3rSlic3r software.
I would like to subtract two parts. For example, I have an STL model, when I right click on the part, I can select Settings..., and in the Settings window, I can select modifier and I can select slab. Withwith selecting proper thickness. Now we have two parts where one of them is inside of another. My problem is subtracting those two parts.
How can I subtract this part from another via Slic3r?