About this 3D model
I am building my 2nd printer. Now a Kossel. To see whats printed I decided to draw this tiny support to hold four superflux LED's. I simply cut the fan wire of my hot-end cooler (12V) and inserted the LEDs. Depending on your LEDs you need different resistor(s) to limit the current. In my case I used 330Ohm in two parallel circuits (see picture). The superflux LEDs are not glued since bending the legs gave enough hold to keep the LEDs in position. I plan to glue the LED holder directly to the hot-end cooler fan. You might find a better place for it. To be honest, at the time of writing this article the LED holder is not attached yet. I included the sketchup file if you want to add holes for screws. Hope this lit a light also on your printer :)