This is a case for the Tape64 V2 device for the Commodore 64, which emulates a datacorder. The electronics is also a shared project on PCBWay and can be found here

Tape64 PCB

https://www.pcbway.com/project/shareproject/_DIY__TAPE64__by_Metallic__COMBO_V2.html

Note: You do not need to order the printout of the PCB, only the case bottom and top. The PCB CAD file is purely used for reference. As it's possible to assemble this PCB slightly differently, you'll need to ensure the edge connector is aligned with the PCB in the same manner as shown in the STL file.

Assembly

Snip out the supports for the microphone window using side cutters

Recommended screws for the lid are 3.5mm self tapping. Max length 12mm

Recommended screws for the edge connector are 2.5mm self tapping. Max length 15mm