Forum:I'm looking for space station

Hello everybody, I'm looking for a space station I saw time ago but I don't remember its name: the space station was a giant starship created by a man who steal robots of entire galaxy. The station was a home for the robots until the arrive of artoo-detoo and threepio it seems to me. The space station, after the conflict, traveled to the Unknown Regions, missing forever. The image I remember is a space station with big motors, circular giant motors. Somebody know the name of this ship? thanks in anticipation...

"What a piece of junk!" - Luke