Printing: - No supports, 30% infill. - Parts should be oriented correctly, but make sure the side with the most flat area is face down. - I don't recommend PLA, as the summer heat will warp everything. Materials: - 8 8mm M3 bolts - 4 M3 washers - 6 8mm M3 threaded inserts - 2 M3 nuts Building: - Use a soldering iron to heat up two of the inserts, and press them through the bottom-most holes on each side of the backplate such that the flange of the insert is on the back of the plate. - Attach the cup to those two inserts with the bolts. - Determine the height you want the holder to sit at, and then press the remaining inserts into both sides the backplate such that the flanges of the inserts are on the front of the plate. - Attach both mounts to each set of inserts with washers and bolts. - Slide the CD insert between the mounts, line up the holes, and then use the last nuts and bolts to fasten them together.