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3D Modelling software
Blender is the free and open source 3D creation suite. It supports the entirety of the 3D pipeline—modeling, rigging, animation, simulation, rendering, compositing and motion tracking, even video editing and game creation.
DesignSpark Mechanical aims to give every engineer the power to quickly design and change product concepts in 3D without having to learn complex traditional CAD software.
Netfabb Basic is free, downloadable software for editing and printing 3D models in STL format. It is compatible with Windows, Linux, and Mac operating systems. For how-to guides, try this collection of Netfabb tutorials or this collection of Netfabb videos.
SketchUp is a free version of SketchUp Pro with limited functionalities.
Tinkercad is a simple, web-based 3D design and 3D printing software.
SolidWorks (available at the Multimedia Workstations in the Learning Garden)
The SolidWorks focus on ease-of-use that allows more engineers, designers and other technology professionals than ever before to take advantage of 3D in bringing their designs to life.
3DTin is a web-based 3D modelling software to beginners for making 3D models.
Thingiverse or MakerBot's Thingiverse - a thriving design community for discovering, making, and sharing 3D printable things.
Yeggi - Search engine for 3D printable models.
3D Warehouse - 3D Warehouse contains millions of models created in SketchUp.
Repair 3D Models
Microsoft 3D Model Repair service
Use the Microsoft 3D Model Repair service to repair STL, OBJ, 3MF or VRML files automatically. This service will save you time by taking care of the many common errors in 3D models that otherwise would require manual repair by a dedicated designer. The service closes holes in the model, fixes face normals, removes self-intersections, and more. You'll be more productive and be on your way to more reliable 3D manufacturing in minutes!
3D Printing Marketplace
Shapeways and Sharpen 3D are 3D Printing marketplace and community. They provide platforms for anyone who wants to create, buy, and sell products with 3D Printing.
3D Model Viewer
Web-based interface to view STL file online
GLC_Player is a software used to view 3d models (COLLADA 3DXML OBJ 3DS STL OFF COFF Format) and to easily navigate these 3D models.
Graphite - STL/GCode Viewer
Graphite is a STL and GCode model viewer for Android. It allows you check your 3D models for printing on the go and enables you do simple editing without being on your computer.
Netfabb Mobile is an easy-to-use viewing App for .STL (SurfaceTesselationLanguage) files on Android Devices.
STL File Viewer (Google Play)
Point cloud viewer and STL file viewer.
An application for viewing 3D models in openNURBS (3DM), Wavefront (OBJ), 3D Systems (STL), Stanford Triangle Format (PLY) and Autodesk Inc. (3DS, DXF, DWF) formats.