One of the most important yet overlooked aspects of 3D printing is the colouring process. Would you agree?

When it comes to creating a prototype or model using 3D printing, there are a number of coloured materials available, but the majority of our colouring is done at the final stages rather than during the printing stage itself.

There are quite a few factors to take into consideration when it comes to the colouring process. See this article here - http://www.oglemodels.com/dye-process-3d-printing/

Are there any important factors you think we missed? Also, which one do you think is the most important, if there is one?