The STLs will work with 3mm foam (compressed to 2.5mm) but other thicknesses are possible
The same cover without the filament sensor mount https://github.com/Autocrit/VoronUsers/tree/master/printer_mods/Fiction/Exhaust_cover
Design influenced by https://github.com/VoronDesign/VoronUsers/tree/master/printer_mods/falo/magnetic_grill_cover
The supplied cable works as-is with the Fysetc Spider V1.1; I'm using it on Y-MIN which is PB13. A longer cable might be required in which case a 4-pin JST PH 2.0 connector is needed for the sensor end, and a 3-pin JST XH connector for the control board end.
Fiction#5826 on Discord