Mini RC Servo Tank

thingiverse

This is a miniature RC tank that I designed and built. I wanted to experiment with making a tank that moved using teeth on 3D printed flexible tracks and a drive wheel with holes in it. For propulsion, it utilizes continuous rotation 9 gram servos. This might be considered somewhat reckless, as the servos tend to overheat after driving for a short time. Nevertheless, it still drives remarkably well. If you use a small battery, there is ample space for some type of payload. I equipped mine with a panning FPV camera. It can navigate straight across snow-covered terrain, but the motors used were not powerful enough to turn it in snowy conditions. Because the rear wheels are circular, it tends to roll over backwards when attempting to traverse obstacles that are too high. The battery life is quite long if you use a 450 milliamp hour 2-cell, and even longer if you use an 800 mah 2s. I'm currently considering building a slightly larger, more powerful version with gear motors. The tracks were printed in a flexible filament that is not very elastic. I simply used a generic one from Amazon. If you use something like ninjaflex, you might achieve better traction on smooth surfaces. Print two of each roller file.