LGB-compatible LED holder
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Holder for high power LED that has the same form factor as LGB light bulb holder for train lighting
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Model information
- Source
- Printables
- Category
- Electronics
- License
- Creative Commons — Attribution
I'm fitting all my LGB trains with battery powered internal lighting. For this I needed a way to hold the high power LED in approximately the same position as the original LGB light bulb would be.
So I designed this LED holder that has the same sized foot as the original LGB lamp holder, including the screw hole spacing. It fits this LED:
There are 3 high variants of the LED holder:
- low (I use this in most wagons)
- normal (same high as original LGB lamp holder)
- high (for LGB 30200 and similar, where the roof beams would throw a shadow with the normal high holder)
The OpenSCAD file is included, so you can modify this for any other LED size.
The SCAD file references the library af-basics.scad which can be found here: https://www.printables.com/model/175914-openscad-library-for-more-basic-shapes
The electrics are very simple:
- battery holder for 2x AAA
- latching push button
- 1 or more (warm) white LED(s) (3.2V)
The internal resistance of the batteries limits the current. The button is accessible via an open window or via a door (which can be opened).
The reason why I put this all into the roof instead of under the wagon floor is: I don't like the cables that go from under the floor to the ceiling. They are always very visible, no matter how good they are hidden.