This is rambros' excellent EMD GP60 model for Dragon Railway, remixed with a Norfolk Southern livery to print on a Bambu AMS.
This contains the new files for the NS livery, the rest of the parts and full assembly instructions can be found on the original model page: https://www.printables.com/model/388509-gp60-locomotive-open-source
I've included the pre-bent models for the railings. I found these easier to install and better looking than trying to hand bend the flat railings. The 3MF shows how I oriented and supported these.
I also had difficulty with the headlight area in the body print, so I've included a small repair piece that can be glued in.
Under Files there is a Bambu Studio 3MF of the full locomotive with the colors already selected and supports placed, and the STLs for the remixed parts. If you need to use the STLs, the paint fill tool in studio can be used to select the different regions.
I used PLA for everything except the drive gear, which should be PETG or ABS. I've had the little gear on the motor strip out when printed in PLA.
The author remixed this model.