If you are publishing 3D collections on Sketchfab and would like to share these with Europeana, the dashboard provides both a tool to add the metadata needed and also an easy way of submiting the metadata to Europeana via the CARARE aggregator. 

The Storymaker, also developed by the Share3D project, is also now available. Users can create stories that include content from Europeana and Sketchfab.

In addition a series of guidelines for using both tools are available online. View guidelines