Well, it starts out amazing, and gets even more amazing as he goes along. He’s using PVC pipe as his raw material, and flattening it out and machining it to make parts. That’s amazing. All the parts are articulated, just like the real thing, which is still more amazing. Then he makes an entire miniature hydraulic system for the thing, rendering it still more amazing. But when he made a working windshield wiper for the thing, I think I lost my mind in amazement. Watch it work at the very end. It’s worth your time.