Lego Technic 42055 Bucket Excavator

About 20% of the way through building this year's Lego Christmas project - the 42055 Bucket Excavator. The base is nearly all weight-loading structure with not a lot of exciting gearbox action yet. But there is another 4 Kg or so of motors, conveyors and gears to build yet - about another 3,000 parts.