The OctoPi Zero case is a stylish Raspberry Pi Zero case with a mount for 2020 extrusions (such as used by the Ender 3).
In my experience the RPi Zero makes a great 3D print server. Remember, to use it for OctoPrint, you will need the wireless version of the Raspberry Pi Zero (that's the one with W or WH after the name):
The case itself should be all plug and play, except for 2 screws (M2 or M2.5) used to attach the top. Just slide the case into the profile of the 2020 extrusion (e.g. on the Ender 3 simply remove the 2 screws holding the LCD display in place, slide the OctoPi Zero in and put the screws and display back on).
Enjoy and please let me see your makes.
And of course take care when handling electronic equipment and no warranties whatsoever.
Generic PLA or ABS
Any you like
Needs supports (touching base plate only) for the extrusion mount of the body.