Bricksmith
Bricksmith allows you to create virtual instructions for your Lego creations on your Mac. The magic is based on the LDraw library, a collection of 3D models of Lego building blocks created by enthusiasts from around the world. With Bricksmith, you'll never have to worry about running out of parts! Bricksmith offers: drag-and-drop building thousands of parts at your fingertips, with no limitations on which ones you can use a full Lego color palette support for steps and submodels, to document exactly how to build your creation undo, cut, copy, and paste multiple viewports a Minifigure Generator
