Summary

Laterne fuer den Weihnachtsbaum.
laterna for Christmas tree. Just drill a hole with about 6mm in the middle on the top of laterna put a Standard LED into and connect a 100 ohm resistor to a small Lithium battery. The both wires are to Close the circuit-contact and to hang it on tree. To get the LED off, just open the both wires or put them together on the isulation. That's all
Enjoy your Christmas !

Instructions

I draw it in Google sketchup (3D), then i exported the file to .3ds Format, converted again with free converter to .stl-format in order to get it on my 3D-printer Duplicator 4. Then let my 3D-printer run and build it with 100% full material, bottom and external Support, used 1.75mm Filament red transparent, working-speed: 80, free-speed: 120, after finishing i did the brake-away of the external Support materials around by Hand with Little Tools and - voila... got is.
Afer raw-production i drilled a 6mm hole into middle of top put in a 6mm spacer ring, within i put a Standard LED, bende the both wires on top of laterna, welded a 100 ohm resistor, welded some small cables to a Lithium 3,5V battery. Isulated all with duck-tape and put These both wires through the small holes of the top-holder. When contacting both wires, laterna will light, open then it is off. Just simple and a nice Thing for our Christmas tree.

Laterne - laterna with LED for Christmas