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A screenshot of a post showing a red pickup truck with a mechanical arm structure attached to its bed, holding a magnet in front of a metal plate mounted on the front bumper, titled “Okay explain why this wouldn’t work”. Below, a comment from the official Volkswagen account reads “We sent this to the engineering department and they blocked us on teams.”
Which is why you use an electro-magnet.
You energize it, allow it to snap to the car pulling it forward slightly, then disengage it and use a motor in the arm to reset it to it’s original position.
That’s way too much of a complicated system prone to wear and failure. A spring loaded pull mechanism is far more mechanically reliable and works at a wide range of scales.