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3DPI.TV – Using Pellets for 3D Printing

There’s an image in the mind of most people introduced to desktop 3D printing of a long tube of plastic filament going into one end of a printer and coming out as a 3D object at the other. Sculptify, which plans to launch on Kickstarter soon, hopes to change that image with its FLEX 3D printing process, and for good reason

With fused filament fabrication, the process used by most desktop 3D printers, the big spools of plastic filament are derived from plastic pellets. The little beads of plastic are fed into an extruding device, melted, and shaped into long tubes (one example is illustrated above). Sculptify bypasses this process completely with FLEX — short for Fused Layer EXtrusion. The Sculptify 3D printer prints using the pellets themselves.

By skipping an entire engineering step, users could likely save a great deal of money on feedstock. Also, with fewer steps in material processing, there’s less opportunity to cause imperfections in the material. And Sculptify claims that, with bags of pellets, “[their] printer is as easy to load as a coffee maker. Simply grab your bag of material, open the printer lid, and scoop in the material of your choice. After a few short minutes, the system will be heated and ready to print. The company also believes that FLEX allows for the use of a wider variety of 3D printing materials.