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Deltaprintr Uses Six Arms for Quicker, Cheaper 3D Printing


A typical 3D printer has a printhead that moves back and forth, and up and down, spending a lot of time moving through empty space that will remain untouched.  A new project on Kickstarter called Deltaprintr, launched by a group of college undergrads, takes a different approach. Most 3D printers have a printhead (which extrudes the hot plastic) mounted on a rod that it slides back and forth on. The Deltaprintrs single printhead, instead is held in place by six long mechanical arms that together direct the printhead precisely over the object it is printing. By moving the printhead only over territory where something will actually be printed, the process goes more quickly. The arms are mounted to, and move up and down on, aluminum posts to create 3D objects in an open space, rather than the usual enclosed box that most 3D printers use. MORE: 5 Coolest 3D Printers of Maker Faire 2013 Shai Schechter, one of the creators of the Deltaprintr and a student at SUNY Purchase, said that the group can make the device for less than $500 by using cheaper materials, including a simpler printhead, fishing line to move the arms instead of the typical belts used in other 3D printers, and fewer total parts compared with those of other 3D printers. Schechter also claims that this simplified design should result in easier and quicker assembly for those who purchase the printer as a kit.  The early-bird special for the Deltaprintr kit had been $425 and rose in price as contributions came in and each reward tier sold out. Currently, you can get an early-bird special for an assembled Deltaprintr for $655. The creators say that because they are all undergrads, it was important to them to make a printer that was affordable for other students. While a handful of other printers, such as DeltaMaker, have used a similar configuration with six arms, few have been this inexpensive and simplified for easy assembly. The Deltaprintr also comes with a calibration probe attached to the printhead that allows for automatic adjustments. The probe measures how level the printer is and then automatically adjusts the design of the object to make sure that it is printed correctly, without the user having to manually change the design or adjust the printer bed. Like many other consumer 3D printers, the Deltaprintr uses standard 1.75mm PLA (polylactic acid, and organic plastic) filament to print at a resolution of 100 microns. MORE: Best 3D Printers 2013  The Deltaprintrs use of an open space defined only by tall aluminum posts, instead of an enclosed box, allows for larger objects than many other printers can manage. It currently supports cylinders up to 10 inches in diameter and 12 inches high, whereas other 3D printers often cant print objects that large because the print box that the printhead moves in is too small: MakerBots Replicator 2 can print objects up to 6 inches by 6 inches by 11 inches, for instance, and the new Solidoodle 4 can print objects up to 8 inches by 8 inches by 8 inches. But those limitations wont last forever: After the it Kickstarter campaign ends, Deltaprintrs creators promise to sell extensions to the aluminum beams, allowing you to build objects even taller than the original 12 inches. They will sell extensions of different heights, allowing users to get just as much build space as they want or need for a specific project.  Deltaprintrs creators are seeking $195,000 for the project. They raised about $65,000 in the first 24 hours of the Kickstarter campaign and as of Dec. 12 have currently raised just over $100,000, with 23 days left to go. The actual 3D printers are expected to be delivered in July and August 2014, after production and testing. Follow Kevin Ohannessian at @khohannessian and on Google+ . Follow us @tomsguide , on Facebook and on Google+ . The Future of 3D Printing Materials 3D Printer Buyers Guide 2013 Forget Plastic: Molten Metal 3D Printers Are Coming Copyright 2013 Toms Guides , a TechMediaNetwork company. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

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