12kg 3D printed RC tank — first time tracks ran under their own power (build series Ep.1)
Spent a lot of time designing this — 60cm long, fully 3D printed chassis, dual brushless motors with custom gear reduction, held together with screws and brass threaded inserts. No glue anywhere in the build. This is the moment in Episode 1 where the tracks finally moved on their own. The motors had been overheating for weeks, then torque was insufficient through two gearbox iterations, then the suspension nearly couldn't hold the 12kg weight. Three redesigns later, here we are. Full build breakdown on YouTube if anyone wants the engineering details (linked in comments because not sure if main post allows). Happy to answer questions about printing settings, motor specs, or the gear ratios.