I've seen a lot of debate online regarding what size of aluminum extrusion is appropriate when designing a printer, but nothing definitive or backed up with actual numbers. Has anyone run FEA on various diameters of extrusion and measured their deflection? It would be nice to have a table or something on the wiki that listed out suggested minimum extrusion sizes for a given printer design/bed sizby ChickeNES - Extruded Aluminum Frames