Here are the files for the Bulkhead. The Light Shades fits with the Light Shade Ring, the Speaker Holder fits with the Speaker Ring. The Light Shade Bulb Hole Cover was made to close off the hole in the light shades where we did not want to fit a light bulb. It gave us the flexibility to print all the light holders without having to decide how many would have light bulbs in them.

The Light Shades were printed in Vase mode with I think it was 4 or 5 bottom layers (the file is oriented so that the light bulb hole is on the print bed. For these I used a 0.8mm nozzle to get nice thick sturdy walls and speed up the print time.