This is the full sized Fusion Generator Storage Tank from Disney's Galaxy's Edge in Orlando, Florida. This is a smaller version than seen on screen in A New Hope on Tatooine. That one was about 3 feet in diameter and the one in the Disney Park is considerably smaller at 2/3 the size. Obviously, nobody will be able to print this out full size, but can print out the panels on their printer and construct a polyhedron box to put it on.
The triangular panel is 135mm x 156mm. Each rectangular panel is 160mm x 326mm so may not fit lengthwise on most printers, but you can segment the parts to your printer bed size in either Meshmixer, or Microsoft 3D builder which are free programs. If you want to save time, you can print each panel once, post-process it, and then cast multiple copies. Dimensions for the polyhedron box are in the photo preview so you can construct this from either thin sheet plywood or create a wooden frame and glue plastic sheet to it.
I also have included a full sized STL with all the parts, so you can size it down to whatever size you need to make dioramas, or legion scale displays.
The files are rather large, especially the full size Fusion Generator Storage Tank, since they are detailed and not facetted.
For a bit of a fast-track to making the polyhedron, I uploaded the triangular corners. All you have to do now is cut out the rectangles and squares for the sides and chamfer the diagonal pieces and glue them onto the triangular corners.