The printed parts as they stand on the desk, around the board (drawn as blocks: Waveshare's own model is theirs to publish). Pull them apart, cut through them, and click any spot to get its name and position for a comment. The files to print are on the right. Back to the simulator.
One file per part below. The fit checks at the bottom are the script's own: every line must say ok or note.
Points are where the spot sits with the case put together, on the desk: x to the right, y away from you, z up, from the desk right under the centre of the screen.