04-20-2012, 03:09 AM
After the little disaster of the melting shell new optical units with LED have been build.
They are essentially the same as the bulb units. A 1.5kOhm resistor has been added to the PCB and I did this time polish the ends of the optical fibers. That improved the brightness remarkable.
A small modification is to paint the lamp hole silver and fill it with Micro Kristal Klear to get nicer lamps when they are switched off. It will take several layers to fill the hole. Have to wait some time until it sets.
![[Image: IMG_1402.jpg?t=1334912349]](http://i966.photobucket.com/albums/ae149/faraway52/Misc-1/IMG_1402.jpg?t=1334912349)
![[Image: IMG_1403.jpg?t=1334912347]](http://i966.photobucket.com/albums/ae149/faraway52/Misc-1/IMG_1403.jpg?t=1334912347)
Last step are the rear lights. Walthers did the correct holes and a piece of transparent plastic. My only job is to glue LED right in front of the holes. The LED wires got a shape like frog legs and held in place by two piece of styrene glued to the third piece of styrene covering the old winter hatch hole in the roof.
![[Image: IMG_1404.jpg?t=1334917459]](http://i966.photobucket.com/albums/ae149/faraway52/Misc-1/IMG_1404.jpg?t=1334917459)
A last remark. The Walthers axis are at the wide side of the NMRA standard S 4.2 K= 0.603 + 0.002. My Atlas #6 turnouts prefer more narrow axis. The trucks can be opened very easy and the wheel distance should be adjust.
They are essentially the same as the bulb units. A 1.5kOhm resistor has been added to the PCB and I did this time polish the ends of the optical fibers. That improved the brightness remarkable.
A small modification is to paint the lamp hole silver and fill it with Micro Kristal Klear to get nicer lamps when they are switched off. It will take several layers to fill the hole. Have to wait some time until it sets.
Last step are the rear lights. Walthers did the correct holes and a piece of transparent plastic. My only job is to glue LED right in front of the holes. The LED wires got a shape like frog legs and held in place by two piece of styrene glued to the third piece of styrene covering the old winter hatch hole in the roof.
A last remark. The Walthers axis are at the wide side of the NMRA standard S 4.2 K= 0.603 + 0.002. My Atlas #6 turnouts prefer more narrow axis. The trucks can be opened very easy and the wheel distance should be adjust.
Reinhard