I do not yet own a 3d printer so I have no way of testing this. This is solely a work in progress and I will iterate the design through feedback from people printing it and further be able to work on making it easier to print once I have a printer of my own.
1/18 Scale Step Van
Designed using Blender with 3d Printing Toolbox addon. I export the pieces of the model into a slicer and verify that they will at least open without problem. Supports will be necessary on most pieces and possibly a raft depending on orientation.