Explore 3D models of these wonderful designs. In the mid-1480s, Leonardo da Vinci designed an armored tank for the Duke of Milan. Explore a 3D model of this innovative design and learn how it ...

Not all of the models are in formats that we can read ... These include a printable Curiosity rover, the famous 3D-printed ratchet wrench, and more. That said, this is a collection of random ...

SketchUp for iPad is the new, versatile way to create, edit and view 3D models from anywhere. With the support of Apple Pencil, multi-touch gestures, mouse, and keyboard, you can work on the go ...