Waveshare 4.2 inch E-Paper Module Frame

With this frame you can mount a 4.2 inch E-Ink Paper Module in a case. A recess is provided for an electronic switch, as well as the labelling On/Off. An LED (3 mm diameter) can be installed in the O of the On lettering to signal that the switch is on. 
If you want another labeling, you can modify the model. I have attached a step file, so you can easily change anything at the model.