Whether you are working at home, in the office or in the shop, proper lighting is pretty important. Not having proper lighting is a contributor to fatigue and visual discomforts. Prolonged straining of the eyes can result in headaches, eye twitching, blurred vision and even neck pain. [pinomelean] likes to make chemically etched PCB boards and he was having a hard time seeing while drilling those boards for the through-hole components. So, he did what any good hacker would do and came up with a solution: a light ring for his Dremel.
Yes, [pinomelean] does choose to drill his PCB holes by hand with a Dremel. because he was already a competent PCB board maker, he chose that it would be an suitable method to make a light ring. The light ring itself is round with a center hole just over 0.750″ in diameter. This hole slides over the 3/4-12 threaded end that many Dremels have for attaching accessories. The stock Dremel decorative ‘nut’ secures the light ring PCB to the tool. There are pads for 9 surface mount LEDs and through holes for a current-limiting resistor and pins to connect a power supply, which in this case is an old phone charger. In the end the project worked out terrific and [pinomelean] can clearly see where those holes are being drilled!
If you’re interested in making one of these light rings, [pinomelean] graciously made his board layout available in his Instructable. If you think one would go well with a soldering iron, check this out.