Remote controlled model of Liebherr LR 11000.
1:24 scale,~27 kg weight, 4 EV3 bricks, 9 motors, 7 light sensors, 1 touch sensor.
Made 99.9% of LEGO, exceptions are PRINTED pulley wheels, stickers, strings.
Slewing ring is made 100% of LEGO. I used minifig heads as rollers.
I do not have instruction.