ROKR Marble Spaceport Pages 22-27 

For my next build I'm going back to a ROKR marble run, they have always been good for me, the instructions are usually pretty clear and well illustrated, and I like building these puzzle/model type contraptions. This one has a possible link system with the previously built Marble Night City, so I have ordered that and hopefully it will be here in time to ease right into that as the next build.