One of the great things about producing Make’s annual 3D printer guide is seeing such a rare collection of desktop machines all in one place. And while most of the printers utilize the same general principle for production, they all have their own unique elements for laying down layers of plastic to build your model.

While running through this year’s tests, we grabbed this closeup peek at the various machines’ extruder heads doing their thing — this isn’t every printer we’re testing, but it does show the variety of the looks and sounds of what’s current in 3D printing.

How many can you identify?

Mike Senese

Mike Senese

Mike Senese is the Executive Editor of Make: magazine. He is also a TV host, starring in various engineering and science shows for Discovery Channel, including Punkin Chunkin, How Stuff Works, and Catch It Keep It.

An avid maker, Mike spends his spare time tinkering with remote-control aircraft, doing amateur woodworking, and attempting to cook the perfect pizza.

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