silverLight

thingiverse

My latest hobby involves collecting silver coins and photographing them. Coins are challenging subjects to capture, but I created a unique lighting setup using Rhino design, soldering, and simple electronics for consistent, even illumination. Initially, I used a webcam for ease and quick feedback; however, I plan to upgrade to high-resolution images with my professional camera. The light also functions as a flashlight for network closets. The cost of materials was approximately $12 from Radio Shack, but online sourcing could reduce expenses. Required components include four 5mm white LEDs, a soft-touch spst switch, a 9V pigtail, a 9V battery, two 5mm x 25mm bolts and nuts, the included STL models (printing innerRing.stl with support), resistors, wire, and heat shrink as needed. Elmer's Tack adhesive putty is useful for assembly. For LED configuration, use http://ledcalculator.net/ to determine resistor values. I intentionally undervolted my LEDs for reduced brightness; future versions may include a potentiometer for adjustable lighting. Dimensions are 130mm outside, 90mm inside, and 30mm height, with LEDs at 20mm from the base and a pedestal that's 15mm high. View additional photos on my Dropbox: https://www.dropbox.com/sh/a6spp8tg14nes7k/QcrdbozHM6/silverLight