The file 'Lenovo M8 Rugged-case Vesa Adapter 3D Printer Model' is (stl) file type, size is 209.1KB.
To mount the case you need M3 nuts, and bolts [I used Hex-nuts]
The adapter is designed for this case:
https://aliexpress.com/item/1005005570643818.html?
But it should be compatible with any other case that shares the same design for the stand/arm-strap
All you would need then is a "generic" vesa 75-100 adapter
lenovo_m8_rugged_case_adapter.stl | 571.8KB |