I remember seeing a technology news piece a couple of years ago which demonstrated how a 3D printer could produce a complex object from a computer model. It was produced in a printer that could lay down hundreds of layers of hot plastic on top of each other. At the time the cost of such a device was tens of thousands of dollars, keeping it very much in the commercial sector for the use of car designers and the like. I was therefore somewhat surprised to open a newspaper yesterday and see such a machine. The MakerBot, is now available in kit form for just $1,200. I would estimate that the rate at which the technology is developing will see a $500 consumer friendly version of these printers by the end of 2012. The current model would do a good job of printing out 3D dungeons, and an improved version might even be able to turn out detailed miniatures. I'm sure that the consumer electronics giants will be taking a look at the market, but for the moment, one of the nice things about the Makerbot is that it's open source.