GEC wrote
Interesting - The machine came with the stand alone 12" planer. Any other additional uses possible?
Your stand alone planer was probably a MK mount planer originally. SS sold a stand with a motor to put the MK mount planer on. The MK mount planer has an aluminum table with a stainless steel skin on top. The planer SS sold as stand alone has a cast iron table. Also the label on the infeed shroud is different. The MK mount planer says "Shopsmith12" Planer". The stand alone planer label says "12" Professional Planer".