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I've always thought they could be good in agriculture (can't pipeline the ground, after all). Dealing with wind would probably require a ~fully constrained 6 line system though.
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"Agriculture" contains multitudes; here's an indoor pollination warehouse operation with pipeline tracks on the ground and no wind issues:

* https://costagroup.com.au/2022/07/06/world-first-robotic-pol...

  Australia's $900-million-a-year greenhouse tomato industry currently relies on farmers pollinating by hand
    “So we've managed to design a robot that pollinates greenhouse tomatoes.”
    “It autonomously drives along the rows, finds flowers that are ready for pollination using artificial intelligence, and sends air pulses to vibrate the flowers in a very specific manner to imitate buzz pollination as performed by bumblebees.”
* https://www.arugga.com/news/pollinating-robot-looking-to-sha...
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The MakerMade CNC machine is pretty interesting concept
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