Stackable Gridfinity Boxes for ESP8266 D1 Mini

Stackable Gridfinity boxes for storing ESP8266-12F D1 Mini NodeMcu boards from AZDelivery and WeMos or of similar size (34mm x 26mm). The print file contains 3 boxes of different sizes:Gridfinity box sizeBoard capacity2x2 6U302x1 6U151x1 6U5 Boards with similar width (e.g. LILYGO T-Display) will fit. But boxes can no longer be stacked on top.