This is a snap-together (OK, OK, & screw-together) replica of the "chest box" for X-Wing pilots from the original Star Wars trilogy.
If you look at production stills from the films, you'll notice that this prop in particular is...a little rough. It's pretty clear that it's just a carved hunk of foam with some acrylic squares glued on. I wanted to make something that looked a little crisper/more detailed - the buttons recess a little into the face, the black plate is a separate piece, etc.
In short: if you want something screen-accurate, this isn't that. But it looks pretty nice, nonetheless. (You can get closer by painting my handy-dandy guidance grooves with white paint.)
It snaps together, minus four #8 screws that hold the back plate on. (I wanted it to be removable to make replacing the straps easier). You can either use plastic thread-forming screws (Type A), plastic thread-cutting screws (Type F), or tap it out yourself (Type I-Own-An-#8-32-Tap).
1 Rear Cover
1 Black Inset Plate
2 White Switches
1 Gray Switch
3 White Buttons
2 Blue Buttons
For most of these parts, you can use a standard 20%-30% infill. For the actual box, you want to make sure that the infill is set to 100% for the screw bosses, so the screws have some meat to bite into. You can also say "screw it" (ha-HA!) & just glue the back cover on once you've got your straps in place.
As always, try to print cantilever-type snaps so they flex in the same plane as the print bed (i.e. so the part is on its side) to prevent between-layer snappage. If any of the snaps...snap...most of these parts can simply be glued in place, so don't fret over it.
I used some general dimensions from the interwebs for the overall size of the thing & built it up in SolidWorks 2018. The version I'm uploading here doesn't have any draft on it, but I do have a configuration that's injection-mold ready, so, you know, if Hasbro comes knocking & wants to make it for real...(cough)
The tolerances were a little too tight to start with, so I had to reprint the buttons, & I forgot to leave infill for the screw bosses (hence my notes above), but otherwise, it just went together as intended. That's pretty frickin' cool.