GrabCAD
GrabCAD, Inc. is a Cambridge, Massachusetts based startup that has created an Collaborative product development (CPD) tool that helps engineering teams manage, view and share CAD files in the cloud.
MAKERGEEKS
MakerGeeks is an online store where you can purchase filament, printers, scanners, and accessories. What makes MakerGeeks different is that they use the products they sell.
Maker Shed
The Maker Shed has a wide selection of 3D printers and CNC machines, from the beginner-friendly Printrbot Simple to the incredible ShopBot Desktop, for some serious production-level CNC milling. Whether you want to print out prototypes with some snazzy filament with a 3D printer or do some serious engraving with a CNC machine, Makershed can help.
SHAPEWAYS
Shapeways users design and upload 3D printable files, and Shapeways prints the objects for them or others. Users can have objects printed from a variety of materials, including food-safe ceramics.
THINGIVERSE
MakerBot Thingiverse is a website dedicated to the sharing of user-created digital design files. Providing primarily open source hardware designs licensed under the GNU General Public License or Creative Commons licenses, users choose the type of user license they wish to attach to the designs they share.
YouMagine
YouMagine is an online community for everyone who’s eager to explore the world of 3D printing. Want to work with other users and learn from each other? Go right ahead: YouMagine is about sharing and collaboration. Needless to say, everything you upload will remain your intellectual property which we encourage you to share.