This is a mounting cage for the Anker AK-A2123111 6-port 60W USB charger (https://www.amazon.com/gp/product/B00P936188/ref=oh_aui_search_asin_title?ie=UTF8&psc=1). My wife and I both have one for our nightstands to connect our watches and phones and Kindles to for charging, and I wanted to mount it to the back of the nightstands to give us more surface space on the furniture itself.
It's a pretty simple design, expected to mount with two screws, and with cutouts to minimize plastic cost.
MakerGeek Raptor PLA
Suggest walls and top/bottom where no infill is needed.
This was designed in TinkerCAD. While TinkerCAD is fairly low-key, it's easy to use and simple models are fairly quick and easy to design. I simply made a box that was the size of the charger, with a small box where the power cable plugs in, and started designing around it.