The Arduino reads the data from 2 channels on the Spektrum receiver.
The 2 motors are currently being driven by a L298N motor driver which is controlled by an Arduino Nano V3. If I wanted to put bigger motors in it, I had to completely redesign the tank which would take up to much time as I already 3D-printed all the parts. I initially used RPM motors but they turned out to be to weak so I ordered some new motors which were the same size but instead of 1000 RPM they are now 100 RPM. It's very hard to take them apart after they snapped together, which is of course the intention.
They are designed to snap together and stay together. The tracks however are completely 3D-printed and don't need little shafts between every link. It's of course inevitable to truely completely 3D print the tank so there are small additional parts needed like bearings, shafts, screws, bolts and nuts. I designed the tank in a way that it can be almost completely 3D-printed.
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