recommend using version with threaded inserts as it much stronger mount for cartographer 3D.
https://www.printables.com/model/1138393-skeletor-mk6-with-low-profile-cartographer-threade
remix to add M3x1.8mm hex nut pockets to hold cartographer with M3x4mm thin head cap screws.
Cartographer 3D offset is Yaxis -22mm.
The author remixed this model.
remix to add M3x1.8mm hex nut pockets to hold cartographer