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It might run DOOM, but can it be made from PVC?

Among computer hackers there's a de facto challenge for determining ones technical prowess, that being, can it run DOOM? I'm not aware of any such challenge in the mechanical realm, but if there was one it might be, can you make it from PVC?

Vang Ha would have no problem accepting such a challenge. He's made everything from fully functioning and usable air compressors to drill presses from (mostly) PVC. His latest video, 5 Amazing mini machines made from PVC, shows off a few of his amazing accomplishments.