Hello,
We shared this news on the Commons village pump, but wanted to make sure we caught folks who maybe don't read the discussions there. [0] 

In 2015 one of the most popular ideas for the Community Wishlist Survey was about supporting the uploading of 3D models on Commons. [1] [2] The Multimedia team at the foundation is writing new software to make this happen with the STL file format. [3]

You can see how this feature works on the beta cluster for Commons. [4] [5] [6] [7]

Note: Thumbnails might take a bit longer to generate on the beta cluster, and general performance will be a little slower than Commons. The feature is still being worked on, so things will change!

Please take a moment to join the discussion on Commons if you haven't. Questions and feedback are welcome.

[0] https://commons.wikimedia.org/wiki/Commons:Village_pump#Preparing_for_3D_models_on_Commons
[1] https://meta.wikimedia.org/wiki/Community_Wishlist_Survey
[2] https://meta.wikimedia.org/wiki/2015_Community_Wishlist_Survey/Commons#3D_models_on_Wikimedia_Commons
[3] https://phabricator.wikimedia.org/T132058
[4] https://commons.wikimedia.beta.wmflabs.org/wiki/File:1900s_telephone.stl
[5] https://commons.wikimedia.beta.wmflabs.org/wiki/File:1900s_telephone.stl#/media/File:1900s_telephone.stl
[6] https://commons.wikimedia.beta.wmflabs.org/wiki/File:Bird_Figure_Nigeria_CNCC_1937.2.stl
[7] https://commons.wikimedia.beta.wmflabs.org/wiki/File:Bird_Figure_Nigeria_CNCC_1937.2.stl#/media/File:Bird_Figure_Nigeria_CNCC_1937.2.stl

Yours,
Chris Koerner
Community Liaison
Wikimedia Foundation