Meet the PocketMaker: an affordable, compact 3D printer that lets you bring your design ideas to life. It lets you use a smartphone to control it. Just select what you want to print on your iOS or Android device to print using PLA or ABS.
PocketMaker has replaceable nozzles. It has a print accuracy of 0.2mm. It uses open source software for printing. This 3D printer is expected to ship in May.