Not a lot to tell about this.
I needed a dwarf sign for my HO layout and din't find the one I was expecting ... it's to say a SNCF model aka carré violet. So I designed one based on several discussions (about dimensions) on some fora.
There is place for 02 LED of 3mm diameter. Wires can exit via a 2mm hole in the bottom.
You can close the back (or not) with some Evergreen.
Carré_violet_v13.stl | 109.6KB |