I have an .stl that was given to me by a 3rd party. No matter what I do, I can not get Cura to generate infill. This question has been asked before, but I think I have followed the advice found there. I have tried multiple ways to make the object solid in both Meshmaker and Freecad. There are online tutorials about doing this that I have followed. No matter what I do, no infill is ever generated. I know the object as it is in the attachment is too large for my print bed. I shrink the x-axis to 63.5mm in Cura. The attached file has been "made solid" in both Meshmaker and Freecad. The original is 15MB, so I thought it best no to try to attach it.
I would appreciate any advice.
cherubim-meshmixer-makesolid.stl