In most of the GBC modules, when a ball gets stuck, it can simply break or jam your module. In this module from Akiyuki, it simply triggers a lift arm that carry your balls to another platform. Do not miss the video that explain the so clever mechanism that makes this trick possible.
| Original design by: Akiyuki | Number of parts: 1068 |
| Original Blog Article (Japanese): here |
Complexity for building:  |
| Price for Building: €€€, average |
 |
Download PDF Building Instructions |
PDF file provided by BlackBird (Additional Inputs from BlackBird) |
 |
XML format to upload required parts in BrickLink Wanted List |
Bricklink Wanted List related to PDF file above |
 |
Building Instructions, parts list and more available on Rebrickable | LEGO Set MOC-3958 – Akiyuki’s Lifter Triggered by a Stuck ball provided by TheRebricker |
 |
Parts list available in BrickStore format (.bsx) | BrickStore file provided by BlackBird related to PDF file above |
Follow the Tutorials from TheRebricker in order to build, step by step, the GBC Module “Lifter triggered by a Stuck Ball”
Access the playlist page for these tutorials directly on YouTube: here
Exchange tips, advices and ideas about this GBC module on PLANET GBC Forum
Sorry, I think, I found them. See jy earlier mail. Arfhur