Great, easy to follow video! I was pretty pleased that the workflow you showed is pretty much the same as I would have used. I must be getting more comfortable with FreeCAD. Of course, I wasn't demonstrating so I would have started with the spreadsheet and then used those dimensions in the sketches. The only thing I am wondering is where did the 3mm dimension of the bottom come from? I don't see it on the requirements diagram. It is certainly is reasonable to make it the same as the wall thickness as you did.
