Part 1: The modification

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As mentioned earlier, the goal was to make the modifications with as few changes aspossible. Nevertheless, this is not gone without additional parts.

I ordered the 4 M-motors as well as the leads directly at Lego.com. All other parts were from  KieselBrick over  Brickscout , which I can absolutely recommend.

Unfortunately, I cannot provide an exact part list, since I have selected the parts ad hoc and could also reuse many parts, which were left by the modifications before.

1: The landing gear

The original is driving, but only straight ahead, no steering is available. In addition, the engine sits at the top of the main transmission. That is why I have installed 2 M motors below, which are controllable separately. The inspiration got here , but ultimately I have built my own variant, which seems to be a bit easier to me.

The cable to the motors I have centrally guided over the axis of rotation, so a turning of the tower is still possible.

2: The Tower

Originally, the turning of the tower is also solved by the gearbox with the XL motor. I separated the connection between gearbox and linkage and inserted at this point an M-Motor with a worm wheel.

 

3: Bucket wheel

The lifting and lowering of the bucket wheel is originally only possible manually. But here it is also very easy to use an M-motor with a worm wheel.

4: Wheel and conveyor belt

Remains the drive of the bucket wheel and the conveyor belts: I left it as it is. The XL engine does it quite nice. The last degree of freedom, the turning of the small conveyor belt, I left unchanged.

Part 2: Adaptation board

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