Marion Walking Dragline Excavator
Built by Greg Clarke in January 2022
This approximately 1:50 scale model is based on a late-model Marion 4000 ton walking dragline excavator.
It features two drag and two hoist drums each fitted with differentials to ensure that the ropes stay even, a 50 cubic yard bucket, slew rotation on a ball-bearing base, and a walking mechanism using large-axle parts.