3D Animated Stair-Climbing Mechanism

I will provide a simplified wheeled mechanical system as a STEP file after a signed Non-Disclosure Agreement (NDA) is in place. The task is to create a short 3D animation showing the mechanism: moving... (Budget: €30 - €250 EUR, Jobs: 3D Animation, 3D CAD, 3D Design, 3D Drafting, 3D Graphic Design, 3D Modelling, 3D Rendering, 3D Visualization, Animation, Mechanical Engineering)