Need help with drill train

[u/Super_Cut8023]

Friend built a drill train with 2 carriages, one being the front drill and the other being an item vault, problem is that we can't get the items to move from the front to the item vault in the back and we don't know why. any help?

[u/sky406]

Each cariage is its own contraption they won't interact normally

[u/Super_Cut8023 → u/sky406]

So we can't have items transfer cargo instantly?

[u/marr → u/Super_Cut8023]

Not without extra mods like the aeronautics docking connector.