Traffic Light Stackable & Expandable System

🔥 OverviewThis is a modular 3D printable traffic light system designed to be infinitely stackable.Each module connects easily to the next using integrated connectors, allowing you to build:Classic 3-light traffic signalsCustom signal stacksFormula 1 start light towersEvent countdown systemsEducational or Arduino projectsThis is Version 1, and we welcome feedback to improve future updates.🧩 Key Features✅ Fully modular – connect unlimited units vertically✅ Integrated LED holders✅ Internal cable routing through the center✅ Bottom compartment for electronics and power supply✅ Option to insert colored paper/film for richer light diffusion✅ Clean front aesthetic✅ Designed for easy assembly📦 Model IncludesEach module consists of:1× Main Body1× Front Cover (glued in place)1× Rear Cover (screwed)Integrated stacking connectors🔌 Electronics & ControlThe model is designed to house electronics in the bottom compartment.Recommended control options:Option 1 – Arduino Nano (Recommended)CompactEasy