The Great Ball Contraption layout at Skærbæk Fan Weekend in Denmark was very special this year. It’s the first time that three GBC big guns have been in the same display – namely, Tom Atkinson from the US, Maico Arts from the Netherlands and Akiyuki from Japan! The trio were brought together for the event by YouTube channel Beyond The Brick, who have been covering GBC around the world for several years. When I heard they were going to be there, I knew I had to take some of my own GBC modules to play along too.
Thie Great Ball Contraption, which I am calling my Rainbow Double Step, was designed by well-knowb GBC builder Maico Arts, for the 2017 Skaerbaek Fan Weekend GBC workshop. I didn’t attend, but the plans for this module are available on his website [as apdf download]. Once again, I easily found the pieces I needed to build the model. Its two steps are driven via a cam arragement which can best be seen from underneath. The steps are guided in their travel by two vertical shafts, and balls roll from the input bucket onto each step and are trapped by the 1×2 grille slopes until they hit the next step or the output wall.