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Home / Essays / What the movies get wrong about robots, and what it costs you

Plain talk, with jokes

What the movies get wrong about robots, and what it costs you

· 4 min read

Every robot you grew up with was shaped like a person, did everything, and either saved the day or ended the world. Every robot that will pay for itself in your plant is shaped like an arm, does one thing, and is boring. The gap between those two pictures costs buyers real money in two directions. Here is how.

The short answer

The word robot comes from a 1920 Czech play, Karel Čapek's R.U.R., in which artificial workers rise up, and the genre has not changed its mind since. Metropolis, Forbidden Planet, 2001, Westworld, Blade Runner, the Terminator, WALL-E. Humanoid, general purpose, autonomous, and either loyal or murderous. The robots that have actually transformed manufacturing since the first Unimate in 1961 are the opposite on every axis: an arm, one job, bolted to the floor, doing exactly what it is told at four in the afternoon. The movies cost you money when you buy the drama and when you avoid the drama, and both happen every week.

Mistake one: waiting for the general robot

Humanoids are in the news and in the matrix, and the concierge on this site will tell you honestly why it does not present them as purchasable: the dealer channel barely exists and almost nothing about them is published in a form a buyer can verify. Meanwhile a plant manager reads the headlines and decides to wait a year for the robot that does everything, while a palletizer that does one thing sits unbought and a person keeps lifting 30 pound cases. The general robot has been a year away since Robby the Robot in 1956. The specific one is on a truck.

Mistake two: buying the drama

The opposite error is the shop that automates its most complicated, most visible, most impressive job first, because that is the one that looks like the movies. It struggles, because complicated jobs are complicated, and the shop concludes that robots do not work here. The shops that succeed put the first arm on the dullest repeat part with the longest cycle and let it run for a decade. Nobody makes a film about a UR10 loading a Haas. It is one of the best investments a small shop can make.

Mistake three: expecting judgment

Film robots notice things. Real ones do not. A robot will place a part perfectly into a vise that has a chip in it, every cycle, until a sensor or a person says stop. This is a feature. It means the cell does the same thing at hour sixteen as at hour one. It also means the fixture, the sensor and the person are the judgment, and a buyer who expects the arm to supply it has bought the wrong movie.

Mistake four: fearing the wrong thing

Nobody has been harmed by a robot deciding anything. People are harmed by cells that were guarded wrong, assessed never, or entered while running. The dramatic fear is of intent. The real risk is a 50 kilogram arm moving at speed with no light curtain, which is a physics problem with a well understood solution and a signature on it. Dune banned thinking machines in its backstory and kept the mentats. Your plant can keep the arm and ban the shortcuts.

What the movies get right

That the person matters. Every film robot worth remembering has a human who understands it: Dave and HAL, Deckard and the replicants, the engineer with the spare parts locker. The real version is an operator who owns the cell, an integrator who signed the assessment and a dealer who told the truth about fit. The robot is the least interesting character in a working cell, and that is exactly how you want it.

What this means for your shortlist

Describe the job, not the robot you imagine. Ask what class of machine does that job at your peak rate with your part, and expect the answer to be an arm, a mobile robot or a scrubber with a model number nobody will put in a film. The matrix on this site holds 755 of them, ranked on fit. The humanoids are in there too, tracked, with an honest note about why they wait.

Tell Joe, the concierge on this site, about the dullest repeating job in your plant. He will probably get more excited about it than you do, which is the correct response.

Related on this site

The movies sold you general, humanoid and dramatic. The plant rewards specific, bolted down and dull. Buy the robot that does one job forever, and let the humanoids finish their audition.

Put it to the test on your own job

Tell Joe what you are running and he will apply this to your numbers, including telling you when a robot is the wrong answer.

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