Instructables
Picture of Light for Life: 3D
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In 2009 i created and published a jacket called Light for Life. It consisted of an Arduino, a set of LEDs integrated into the buttons,and two pushbuttons to activate them. I really wanted to make more of the buttons, but they were hard to make; requiring a drill, glue, and filing down each LED lens.

Now that desktop 3D printers are around, its time to make some the DIY 2.0 way!

NEW: I made a video of the jacket here. Check it out!
 
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Step 1: Preparing for print

Picture of Preparing for print
The main focus on this instructable is the button itself. You will find attached a .stl file, that allows you to print out the buttons that i made.

I have an Ultimaker 3D printer, using Cura for slicing the files. If you already feel lost, that means you probably don't have a 3D printer. Don't worry. Maybe you will be inspired to get one. It's awesome!

So, the reason for using Cura for this product, it the possibility of pausing it midprint. Many 3D printers have this feature, the simple "pause" button, that stops and resumes the print. The advantage with using Cura is that you can actually pause it at a predefined moment, 4.5mm for my part, and actually have the extruder hotend (the part that melts the plastic filament) move away from your object! This way you are free to fiddle with the object, like putting LEDs into it.

For material i chose ABS, because it has better translucent abilities than PLA. Of course natural PLA would work, but I want it to be opaque, so the LEDs are invisible when turned of. Nylon would probably also do the trick.

My settings were:
speed: 25mm/s
fan: none
Material: ABS
layer height: 0.1mm
Pause at print: 4.5mm
(for increased bridging quality, turn fan on 50% after inserting the LED.)
A little normal+a little wierd=I LIKE IT!
Advar1 year ago
This is a fantastic idea for latenight strolls without a flashlght.
paqrat1 year ago
Very cool
You have solidworks and a 3D printer :) you are one lucky man! ** one day** =D
soullessv1 year ago
This does make me wonder if you could some how hook them up to a solar charger and a light sensor to turn on in low light.
kempton (author)  soullessv1 year ago
Yes you could, no problem, but you would have to wear the solar charger, light sensor and arduino (you need something to make sense of the light sensor signal). All this instead of a simple 2$ battery and push switch. If i had to make it, i would consider the light sensor to turn it on/off, but leave the solar charger at home.
kempton (author) 1 year ago
I just made of video of the jacket. Have a look:
http://youtu.be/A6-aF2GVPzo
I think Cops will find this Instructable of great use especially night working to be visible Think of Father Christmas suits or in USA Halloween and so on
husamwadi1 year ago
I like it, good work! You could make the led's flash in sequence to look like a landing strip, now that would be awesome!
Or a KITT-style scanner (I forget exactly what the term for that is).

Though if you're using an Arduino, no sense it limiting yourself - just make your switch cycle through the available lighting patterns!
NTT1 year ago
Love it!
kempton (author) 1 year ago
add some wiring and a little arduino, and you are good to go!