3D Printed Diffuser Lights Up This Magnifier
http://hackaday.com/2016/07/17/3d-printed-diffuser-lights-up-this-magnifier/

3D print a surround for a lens from a set of helping hands. This is no simple print though, it’s made of three layers. There is a translucent diffuser, a layer that holds a set of LEDs and attaches to the arm, and a cover to hold the lens in place. Power for the LEDs comes via USB.

The print itself was a bit tricky, his diffuser used T-glase translucent filament, and was fused to the PLA LED ring in a single print from his dual-extruder printer.

Hobby Creek Arm Mod – 3D Printed Illuminated Magnifying Glass
https://theccontinuum.com/2016/07/08/hobby-creek-arm-mod-3d-printed-illuminated-magnifying-glass/

After I successfully managed to replace the transistor, my subconscious mind had already made the decision: I was going to make an illuminated magnifying glass arm!

I followed a pretty inefficient iterative process and ended up with a couple of useless 3D printed parts on the way, but in my defence I’m a software engineer so CAD modelling is not something I’m really experienced at.

The electronics of this project are very simple, it is just an LED circuit with 12 LEDs in parallel and a current limiting resistor in series with the supply.

Modelling the glass holder as I envisioned it was probably the most difficult part. To create all the models I used Onshape which is a pretty cool 3D CAD modelling software which works pretty well on the browser. The model itself had a couple of requirements such that it should fit the 60mm magnifying glass, the 12, 5mm LEDs and the μUSB breakout board.

The material choice I went for was Clear Taulman T-Glase. T-Glase is very well known for its optical properties so it was the perfect choice for the job.

Unfortunately, once I made the decision, I opened a small Pandora’s box of my own. T-Glase is famous for being difficult to print with problems ranging from terrible overhangs, irregular extrusion, flimsy layer adhesion and, to make matters worse, T-Glase has very little adhesion to PLA,

If you used Taulman T-Glase but didn’t manage to get such a uniform light diffusion, you can try printing the part again increasing the nozzle size and reducing the temperature. According to Taulman, this will produce a clearer print with improved optical properties.

Project : Ring Light
http://metku.net/index.html?path=mods/ring-light/index_eng

Fast, cheap and easy project for a photographer in a need for better lighting in close up photography.

One can buy a ring light from a store but that is no fun. In a true Metku spirit we will try to find a cost effective replacement for a commercial unit. Something that one can do with a low budget and with tools that most people have. Read on and see if the succeeded in our mission this time.

LEDs are good for photography as they operate with DC voltage (no flickering) and as they emit very little heat. I had an option to make my own PCB for the ring light but I happened to notice some sweet, ready-made PCBs with leds already attached to them with a very low price.

So there you have it, a quick’n’dirty, cheap and quite useful weekend project that resulted a piece of kit that one can do by themselves. I took bit of a shortcut by utilizing these amazing car lights but their cheap price, small size and bright light justified their usage.

The project is also doable and valid with compact digital cameras too.

The latest write-up from our personal blog site
http://www.beautyfashiondigest.com/best-face-wash/

I try to read all your blogs

Just thought i would share an alternative source for the “Ring LED lights

Here’s one for $12
Outdoor LED Umbrella Light Camping Light Patio Cordless Deck
http://www.amazon.com/Outdoor-Umbrella-Camping-Cordless-Silver/dp/B001OJZ0TM