My entry for #POLYMAKERCHALLENGE
A functional lampshade with a voronoi like pattern for E27 lamp sockets that have outer threads (like the IKEA Hemma cord set).
Video tutorial: https://www.youtube.com/watch?v=6cxxnytzxkY
Here is a video tutorial that not only has a lot of tips for 3d printing settings, but it is a full design tutorial, so that you can design your own with a unique pattern from scratch!
Variable layer height and variable infill.