I can only apologise for the number of people in the last two weeks that have asked for this design and I completely forgot. It is one of my most highly requested designs this month. It utilises an LED toggle switch which can be found here: (Click Picture)
You will also require 3 colours of PLA to achieve the build:
Silver/Grey for the base (3)
Black for the Cap (2)
Translucent Red for the lens (1)
The unit should be a tight fit and clip together. However, the addition of a little super glue may be needed.
The Design and CAD for this unit can be found here:
I hope that helps all, Kind Regards Karl
I'm back off into the workshop to spend the day wiring up the new FMC!