Just a month ago, a 3D-printed lower receiver was put to the test by Michael Guslick, who wrote on an AR-15 enthusiast web forum that he was able to assemble a working model of the rifle with a receiver printed on a Stratasys model printer and to fire 200 rounds without any sign of wear on the printed piece.

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The Replicator may have just been pushed off this writer's Christmas list. (Note to self: send updated letter to Santa.) But, this isn't a loss for MakerBot Industries, because it's being replaced by the Replicator 2, the newest model of 3D printer from the company.

ENGADGET: MakerBot unveils Replicator 2, 2X and launches retail store, we go eyes-on

Then he asks for the model number of your printer to facilitate the next, overdue shipment of the toner or cartridge that you use.

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Rounding out the bunch is the Photosmart 375 Compact Photo Printer, which is a portable model meant for cranking out 4-by-6-inch prints while on the go.

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The current prototype was built on a 3D printer and clearly created for an iPhone, but plans for the initial model should be simple enough to port to any handset.

ENGADGET

We had revised our earlier HP model based on its restructuring plans here and this valuation was contingent on the software, services and printer business performance.

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