David's Overland C430 has been a workhorse on both A&O 1.0 and now 2.0. It still had an NCE 408 non-sound decoder and that needed to change.
It has been quite a while since I peeked inside the locomotive.
This engine weighs a ton and has seen lost of miles on the layout, to the point that some plating has worn off the wheels.
First views inside.
An ancient Lenz back-EMF LE230 decoder powered the unit since A&O 1.0.
A 3D printed saddle was designed in Fusion 360 to hold an ESU 5L decoder above the motor.
The decoder has been mounted on the saddle. Green connectors bring track power to the decoder. A 10 pin ribbon cable connector will distribute lighting to the front and rear of the locomotive.
Not shown are two remote lighting boards that attach to the ribbon cable. Each board holds the LED dropping resistors. Individual LED wires attach to this board.
Turning class light lenses.
The decoder is now in place.
Some LEDs such as those for the rear number boards were held in place using 3D printed lighting blocks. The big blob of gray clay holds 3mm rear headlight LEDs in place and blocks cross-light pollution between the number boards and the headlights. Still to be installed here are rear class lights.
Eventually the speaker was mounted to a 3D printed block to the roof of the shell, with sound escaping through the radiator intake grills on each side of the car body.
Sorry, but I didn't document the rest of the install...
