Drawing glasses

In this simple tutorial we'll draw some glasses in 3d, testing with different materials and transparencies.
We'll start from a 2d profile which will be revolved to get the final object.

The tutorial shows following points :

• Complex constructions in 2d
• How to revolve a 2d sketch around an axis to get a 3d solid
• Usage of construction lines
• Usage of user coordinate systems
• Usage of layers, materials and transparencies