I'm very new to Blender, so I think this should be an easy question to answer, but after a few hours of Googling and experimenting, I'm no closer to a solution.
I'm trying to model a blastula for 3D printing. You can google "blastula" if you're unfamiliar, but essentially I need to create a hollow ball of cells, or more simply, a sphere made of spheres. I've been able to approximate this using the methods described under "Creating a spherical array," but I can't figure out how to join the individual spheres and/or remove the overlapping vertices on the inside (for printing). I've had success using BoolTool to merge a few individual spheres, but I can't figure out how to create the blastula as a whole.
Alternatively, if there's a way to simply curve/extrude each face on a sphere such that it resembles a partial sphere itself, that may be easier, but I have no idea how to go about that. Sorry in advance if this is poorly phrased, like I said I'm very new to Blender and still learning the terminology. Thanks!