Parts defaulting to center upon import

Hi Printheads

i recently saw a YouTube video about sublimation printing on an 3D-Printer.
https://youtu.be/Jq13diBRQcA?si=dteqfYxm7VJKMDOc

i now have the problem that i need to position the parts i want to print very accurately so they line up (the concept is shown nicely in the yt-video)

im working with Bambu Studio and Fusion 360.

im creating my objects in Fusion export them as stl/3mf/obj/step, importing them in Bambu Studio and the parts ,without fail, end up centered.

i tried to change the file format but all mentioned above are affected with the option .obj not even beeing the same size.

i made myself a replika of the printbed in Fusion so i know exactly where the parts are but upon loading the objects in bambu studio it loads the parts in the center.

is there a way to preserve the placement of parts other than center?
maybe a different file format?


i discovered a very similar topic but im having a slightly different version of this problem:
https://forum.bambulab.com/t/object-position-changes-upon-file-opening/84949?u=ruztykitten