coronavirus 50 nanometer virion with spike proteins

grabcad

crystal packing lattice is not accurate, use for illustrative purposes only;spike of covid 19 trimer structure: 10.1016/j.cell.2020.05.025;coronavirus virion structure: 10.1128/JVI.00645-06;the pdb structure was open in pymol (pse), converted into surfaces,ran through 5A solvent, saved as WRL, simplified in meshlab,exported as stl,assembled in inventor,re-saved as stl.the longest dimension of the spike trimer is about 160 angstroms. Autodesk displays this as 160 inches. The sphere was modelled as 500 inches in diameter, so scale accordinglyCheers!