Tiny Tracked Truck - Inspired by Tiny FPV Tank/Tiny Trak

thingiverse

I took Jani Kablin's chassis design and turned it into a customized vehicle by adding a cab to accommodate a servo-controlled camera. I engineered new sprockets that can be seamlessly integrated with 60x Lego 3873 Tracks, providing a direct swap solution that utilizes the same reliable 8x4x3 bearings. The wider sprockets are designed specifically for the bearings, while the narrower sprocket is tailored to house the servo arm hub after the arm has been trimmed to size. Most of the electronics are neatly fitted within the front section, and the cab is securely attached to the chassis using hot glue. The VTX and battery are conveniently located in a removable rear cab for easy access. The electrical system consists of two 9g continuous rotation servos, an Frsky XMR transmitter, a Matek 5v bec power supply, a 2.5g servo for camera pan control, and a modified 9g servo PCB to manage 3mm LED lighting. I also customized and separated the AIO camera/vtx module for optimal performance. To ensure reliable battery life, I selected a 2s 300mAh battery as the power source. After making some adjustments, I added a rear deck/load cover that I had originally designed before creating the rear cab.