Some months ago, Lego ask us to build something with the new 42082 – Rough Terrain Crane and we decide to make a big contraption machine. Here is the full story, second last episode, #4 : The Improvement.

References :

Previous Episode :

• The Amazing Machine Story #1 : The Beginning
• The Amazing Machine Story #2 : Building The Modules
• The Amazing Machine Story #3: The Big Test