This video shows, how you can use 3DViewStation to create and maintain assembly instructions. Starting with the assembled 3D CAD model we'll gernerate a series of views which represent all the dis-/assembing steps. We show how we can preserve our work and apply it on a modified CAD model, what will happen to removed or added parts. Finally we'll also show 3DViewStation WebViewer version, which could be used to e.g. display certain assembly steps on the on the shopfloor - ideally as part of a MES solution.