Printing: - No supports, 15% infill - Everything should already be oriented correctly, but make sure the LED holes are on the top. Materials: - 100mm diameter magnifying lens - 12 3mm LEDs (and the resistors, wire, and power source to power everything safely. I used four parallel rows of three white LEDs with a 120 ohm resistor on each row, and a 12 volt wall wart.) - 1 meter(ish) of 3mm diameter insulated cable with at least two conductors (old USB cables work great for this) - 4 M3 screws, between 11 and 6mm long - 4 3mm washers (optional) - Articulating desk lamp arm with the correct mount. Basically, I had an old lamp laying around that I built this for. However, I've included the .dwg files so that other mounts can be designed. Assembly: - Wire up the LEDs, using the printed holes as spacers during the soldering. - Attach the insulated cable to the positive and negative ends of the LED array, then feed it through the extra hole between the twelve o'clock and one o'clock holes. - Push the LEDs through their respective holes so that they fit snugly. - Slide the lens in from the bottom, until it's situated inside the bottom ring. - Attach the lens_clamps to their respective slots with the M3 screws. - Wire the insulated cable to your power supply, and you should be finished!