The ecosystem around 3D printers gets a little more mature each day. Just last week we were reporting that about the Smithsonian launching a set of 3D files of their exhibits that you can print at home. And now comes news that Microsoft has released an application for Windows 8.1 called 3D Builder. It’s meant to make it possible for people with no experience with CAD software to easily create objects to print. Aside from containing a catalogue of items that you can use immediately, the app allows you to modify them and even to import your own external ones, of course only as long as you have the hardware to do so. It’s free and you can give it a spin at the link below.