This is a case for the CM 4 on a Nanobase B Carrier Board with mounted heastink.
Components:
Raspberry Pi CM 4: Any variant will do
Nano Base Board B: Link to Manufacturers site. Got mine from Amazon
CM 4 Heatsink B: Also link to Manufacturer. Available on Amazon.
Optional: M3 thread inserts. Designed for CNCKitchens short M3 inserts
Assembly:
The author marked this model as their own original creation.