Forum - GBC Train From The Great Ball Contraption Wiki Special page Tools Upload file Special pages Printable version Overview > Great Ball Contraption > Customs > GBC Train Write a reply [#34] Here's a link to the original GBC train we used at Brickfest '05 http://www.teamhassenplug.org/GBC/Train/ In that GBC, we had a train track running behind the entire contraption, which was split into four separate sections. We could bypass any section with the trains (we had two running) and keep the rest of the layout running at full speed. Steve Posted by Hassenplug on 7 July 2015 at 19:56. To protect the wiki against automated spamming, we kindly ask you to solve the simple sum below and enter the answer in the box (more info): What is half of 6? Retrieved from "http://greatballcontraption.com/wiki/Special:WikiForum/GBC_Train"