here's my submission to this competition, I decided on a compact excavator by liebherr., as it's the perfect candidate for this, it's: compact, has many functions and most importantly tracks :)
here's a first attempt at a undercarriage, it has track tentioning using shock absorbers, 2 motors for drive, 2 motors for other functions, currently I have a gearbox planned for the supperstructure.
I have exams coming up so I will only digitally design it at this moment, later I will do the physical design.
and here's the real one