Fun Fact

Wow, the LEGO 42146 set is big. And a lot of parts. But when you look closer you will realize something. Many of the included parts are big frames which are useful for building big. But not so useful for building small detailed mechanisms. Making this music machine required us to play 8 notes. So every mechanism that you come up with has to be multiplied by 8. This gave us the biggest challenge of all. So first you have to come up with a working mechanism and then design it in such way that it can by copied 8 times. In the mechanism you see we had to squeeze every little bit out of every part to get the GBC 53 Marble Music Machine working. To give you an idea: there are only 12 axle extenders in a set with over 2883 parts in total. It was challenging but we succeeded.