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.
My Rainbow Slalom GBC module consists of two parts (plus a new ball bucket to collect the test run). The two halves have separate for ease of transport, but fit together quickly with a couple of Technic beams joining them at the bottom for stability. Its unput is based on the very reliable Brickworld 2018 ball pump, which has been extended to reach about 20 bricks above the input hopper. The diagonal slope then feeds into a brick built slalom module which brings the balls zig-zagging back down to output level.