About this 3D model
This is a remix (in Tinkercad) of the Polypanels Quarter Square which allows you to extend out from a wall of a structure, or to be able to make things stand up a little easier! The vertical printed connectors are a little more fragile than the horizontal ones, so a little care is needed when disassembling. Update: Also included a 'flip' version of the model to allow the 3-way to face the opposite direction.