The .3mf file contains all of the parts, they should be printed as follows:
Infill - 10% - 20% of your preferred infill pattern should be fine.
Tolerances throughout the model are between 0.2mm and 0.5mm. Adjust your printer accordingly. This should be fine for the majority of modern 3D printers.
Print times should be fairly low as the majority of the parts are quite small (>10 hours total print time)
3rd picture has the part labels.
This model features a rotating platter, tonearm which moves horizontally and vertically, a knob which rotates, as well as a volume slider which slides up and down.
Loosely based off of the Technics SL-1200.