While planning this project I wanted to put the split flap display in a wooden frame. In order to organize my units I wanted them connected very firmly so I can carry them around without the fear of falling apart. Also I wanted it to be separate easily if I need to replace one.
The result was the modification of the UnitFrame. In order to connect two frames you need:
As the 10x4 connector is a tolerance piece please print some variations at 96% 98% 100% scale to see which fits best with your printers tolerance.
The author remixed this model.
The UnitFrame was modified to comply with following features: