A large GBC Ball Lift is always good. The focus on the next GBC is on something completely different and we needed a way to travel the GBC Balls up. Given the limited useful parts in this set we decided to keep the ball lifting mechanism to a minimum. Steady as a rock!
- GBC 53 Music Marble Machine – 42146 Building Instructions
- LEGO 42146 set – Liebherr Crawler Crane LR 13000