Picture of fast Fiber-Optic Light Pipe hack with Sugru
Polymath Design lab made a "Skirt full of Stars" using fiber-optic light pipe.

Their instructions suggested attaching LEDs to the end of fiber-optic light pipe using heatshrink. However, I found this method challenging because light pipe has a low melting point. So I looked for alternative methods to focus LED light into the light pipe. 

Here is a quick way to make strands of fiber-optic material light up, without heatshrink. It is a non-permanent solution, so if you want to reuse the fiber optics they can be easily removed. Also, this is one way to use expired sugru.


some Fiber-Optic light pipe strands (so people don't have to buy yards of it at once, I put small quantities for sale at http://www.gadgetcat.com/?product=fiberoptic-lightpipe)
plastic drinking straw
~2" duct tape (black electrical tape would be even better)
3V coin battery for testing

Quick overview of assembly:

Stick an LED and fiber-optic light pipe inside a straw, use expired Sugru to hold the LED in. Wrap with duct tape or black electrical tape to help focus all the light into the light pipe.

Step 1: Cut the (stiff) Sugru

Picture of Cut the (stiff) Sugru
A use for expired Sugru. 

Use the piece of straw to mark the size of the Sugru plug for the end of the straw

jeanniel14 months ago

Wow, what an easy and inexpensive way to make this. Esp like the expired Sugru = now I know what I can use that stuff for also.

Very cool! I like the use of recycled materials!! I actually think you were right on with using duct tape! Black electrical tape would probably make things worse not better as it would "absorb" light rather than reflect it. I do like your suggestion to wrap it in foil first though! (Or you could use some foil tape) That's essentially how a fiber optic data cable works! :)