The 3D printing industry has new offerings today, specifically cheaper, easier-to-use hardware and online marketplaces filled with predesigned files. MakerBot, for example, recently announced a new one-button MakerBot Mini. Files can be sent directly to the compact printer from a mobile phone or tablet over Wi-Fi, and the Mini will create the object in PLA plastic. A barrier to mass adoption of 3-D printers is price, however.


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