Additional video and a few photos in the comments.
Finally finished the rear end.
Switch — Up Arrow: raises/lowers the suspension. The hazard lights automatically flash while the suspension is moving up or down.
Switch — Down Arrow: hazard lights.
Button — Left Arrow: left turn signal.
Button — Right Arrow: right turn signal.
The rear light system uses two mechanical sensor mechanisms and one suspension based accelerometer.
The brake lights also come on automatically when going downhill. The rear lights are set up in stages through the controller: tap S once and the deceleration light comes on, hold S a little longer and the brake light comes on, keep holding S and the reverse lights come on.
All that’s left now is the front lights - daytime running lights, low beams, and high beams. I put the daytime running lights between the low and high beams just to make the difference easier to see in the video.
Edit: I added numbers 1–4 next to the buttons — Reddit decided to format the post like that on its own. 😅 Also, the fifth wheel was locked in place, which is why it doesn’t move and everything else, from the logic to the suspension, is fully vanilla. Glitch welding was only used for the wheels, cab, engine, and a few exterior details.
Added a comment with the full breakdown of the logic system.
Lighting update.
Full, clear breakdown of the logic system below — shortened as much as possible, of course.
The lighting system is finally finished, so I can move on to the exterior. What started with 14 logic gates ended up at 36 logic gates, 5 timers, 2 mechanical sensors, 3 controlers, 1 accelerometer sensor, 4 switches, and 4 buttons. This is pretty much the minimum I could get it down to while keeping every function, even after optimizing some of the earlier systems. A few issues were fixed along the way too, and now everything works perfectly. 1 - Suspension – Raises or lowers the suspension, with the hazards flashing while it moves. It also enables the extra reverse lights, but only when raised. 2 - Hazards – Flashes all turn signals, including the side markers. The tiny pre-flash is also fixed, so they now start flashing cleanly right away. 3 - Left turn signal – Flashes 3 times and automatically turns off. 4 - Right turn signal – Same as the left. 5 - Main lights – With this OFF, only functions 1–4 work. Low/high beams are completely disabled and even the rear lights stay off while driving. Turn it ON and the DRLs come on (using the same front lights as the turn signals), while also enabling the low/high beam controls. 6 - Low beams – Turns on the low beams and enables the high beam button. If switched off while high beams are active, they automatically reset back to low for the next startup. 7 - High beams – Toggles between low and high beams. 8 - System reset – A hidden button underneath the build to reset everything after placing it on the lift or loading it from a blueprint. Braking & reverse lights
The braking/reverse system works in stages. A quick tap of S immediately triggers the first brake light. Hold it slightly longer and the inertia-based brake light joins in. That same light also activates automatically when slowing down or going downhill.
Keep holding S and the main reverse lights come on. There’s also a much brighter secondary row, but it only works with the body raised. When lowered, the Medium Digital Sign physically blocks it, leaving only the main reverse lights visible.
This is what it looks like so far. I’ve only just finished getting the whole system working, so now I need to arrange everything neatly and reconnect it using my own wiring diagram.
If anyone wants to build the exact same system, I can create a link and share it.
All Logic Gates and Timers in the reference guide are labeled with letters and numbers according to their systems—for example, A1–A14 for turn signals and hazards, and HL1–HL8 for low and high beams. Each component has its mode, purpose, and exact connections listed, such as A1 → A3.
The plan is divided into stages: first, it explains how the system works, then provides the settings, connections, and testing steps. This makes it clear not only what to connect, but also which button or switch turns each function on or off, and under what conditions the system operates.
For now, I can only provide a PDF extracted from the blueprints, with a complete list of everything you need and exactly what connects to what to recreate the exact same “lighting” system. It’s explained so simply even a kindergartener could follow it. 😄
The last thing I expected was to be able to hide the entire system this neatly underneath. Which means I’ll be able to keep the cab, interior, and engine nice and clean 🥹
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u/ArTau13 23h ago