I am pretty new to FreeCAD and have been using SketchUp and a little bit of AutoCAD before. I am making a box for my drone that Ive built myself, the goal is to have a box with 4 holes and small sockets to put the components into. I have made a box but I cannot manage to make my "sockets" hollow. I have attached a screenshot of my project. Thanks beforehand!
Best regards Max