I made/remix gridfinity compatible stuff for 3d printer this include

-build plate

-kobra hotend slot

-boxes

Notice

for the base plates you require at least 2 m3 10mm screw and 2 nuts

Credits

https://www.printables.com/model/360046-gridfinity-modular-baseplates/files

https://gridfinity.xyz/catalog/

https://www.printables.com/model/242711-gridfinity-master-collection