Rotate 3D objects inside your browser and use them for drawing reference!
Icon legenda:
3D Model Index - choose another 3D model.
Rotate the object around two axes.
Z-Rotate the object around the third axis.
Near the object.
Zoom into the object. 
Pan the object sideways.
Puzzle Mode removes construction lines so you can attempt to construct them.
Randomize Model to change various dimensions of the model.
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