Way back in 2010, Makerbot released the Automated Build Platform, a neat heated conveyor belt for the Cupcake or Thing-O-Matic that would spit parts out when a print was done. It’s a great invention if you need to produce 20 of something, and the perfect invention if you want to sit on a patent and not innovate anything ever.

You won’t need to wait until the year 2030 to get a device that automatically removes a print from a print bed. The folks at MatterHackers came up with an Automatic Print Ejector that removes a print in the most [Rube Goldberg]-ish way possible: with a boxing glove.

The Automatic Print Ejector is pretty much taken straight out of a [Buster Keaton] movie. It’s a series of scissor mechanisms with a 3D printed boxing glove on the end, driven by a stepper motor. When the print finishes, the boxing glove simply punches a print off the bed of a printer.

Does it work? It does, brilliantly. Check out the video below.

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