Raspberry Pi Zero USB Dongle Case

Simple 3d printing friendly Raspberry Pi Zero USB dongle case.
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It was inspired by idea of converting Raspberry Pi Zero to USB dongle: https://www.raspberrypi.org/magpi/stick-pc-pi-zero/
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Case has bevelled edges so it does not require any post processing and it is pleasant to hold.
It is screwed together using 4 screws. I prefer screws over "clicking" because they work reliably and allow repeated assembly and disassembly.
I recommend using Plastite #2-28 x 3/8 screws to hold it together: https://www.amazon.com/gp/product/B00GDXU8AA
You will also need standard USB A male connector. I got them in this nice set: https://www.amazon.com/gp/product/B072M6SJL8
If you want to see LED blinking, drill (1.8mm or #50 drill bit) or pierce thin cover of the pre-made filament guide in the top of the case and insert short piece of translucent filament as light guide.
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Case is designed in OpenSCAD for extrusion width 0.5 mm and layer height 0.2 mm, which delivers 4