微三维-V3Wei致力于为广大3d打印爱好者提供3d打印模型，3d模型文件共享交流平台
Autodesk builds software that helps people imagine, design, and make a better world.
Enjoying3D是一个专注于3D打印模型素材资源共享下载和在线打印的平台，提供stl格式及obj格式3d模型，让每一个人都能感受3D打印的魅力，享受3D打印的乐趣，是Enjoying3D的初心。
The GrabCAD platform drives additive manufacturing at scale through connected solutions, including GrabCAD Print, GrabCAD Shop & the GrabCAD SDKs.
STL files for 3D designers and makers, share free and paid guaranteed 3D printable models. Download high-quality 3D print files for tabletop gaming, toys, gadgets and more for your 3D printers.
