Marklin C-rail cross

Small cross for Marklin C-Rail / My World

EDIT (18/08/2021) : V1 is plain old design
V2 adds guide to avoid derailing (occured a few times with V1 and intricate circuit designs)
I have also added a straight C-rail that has the same length as the cross.

For other C-track designs : see https://www.thingiverse.com/milkx/designs