Yeah, I made this robot, and I made the animation rig for it (including the custom bone shapes, drivers, constraints, etc.) and then I animated it. 

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This was just an experiment I did for fun and I really like how it turned out. 

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The model was made from a collection of photo-scans of various industrial parts. 

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I used drivers and constraints in the armature building process to achieve the movement of pistons, the back plates, and other parts, with just a few control bones. 

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Please see and learn more by clicking the title above.