This is an open case (a case without a top lid) for the Raspberry Pi Zero with a Cytron.io Maker pHat (shield) on top.

The Cytron.io Maker pHat is an educational and hardware development hat for the Raspberry Pi with the dimensions of the Pi Zero. It is perfect for getting started with Pi learning and projects as a bare minimum Raspberry Pi kit with minimal footprint on your desk.

Ref :
https://www.cytron.io/p-maker-phat-simplifying-raspberry-pi-for-education

There are two STL files, one for the case and one for the four 3.5mm spacers needed at the corners (you may use brim to print the spacers).

I designed this case to be small but rugged. I chose not to make a top lid as the Maker pHat has a lot of stuff printed on its board and it is preferable to have it open for clear visibility. Since there is no top lid, everything is held together with four M3x10mm screws and nut inserts. I used 5mm depth inserts as that’s what I had, but thinner inserts would allow for a thinner case. I used M3 screws, but the stock screws are M2.5, so the four corner holes of the Pi and hat board need to be widened by 0.5mm for M3 screws.

With silicone anti-slip pads underneath, it does a marvelous job.

Enjoy!