When mapping the 3d models, a folder is created within your cam environment. It's named the same as the .pcb file but with "_PCB" added. Within this folder are files containing all of the 3d models assigned as well as the mapping data. This should easily zip and travel with the Pads database. If a new version of the pcb file is created, an updated 3d folder is also created and all data from the previous folder is carried into the new "_PCB" folder.