@Imanol BB: I reconstructed the base of the model using IMANOL's LXF file to use 2 PoweredUp/Control+ motors, seems to work well. However, the 8:1 reduction using the worm gears to 8 tooth makes the base a bit slow. Has anyone tried less reduction in the base? Is there still enough power to move the model at 4:1 or 2:1?
I also used more L motors (poweredUp) to run the other functions and it works pretty well. All being controlled with Brickcontroller 2 connected to X Box wireless controller:
2 L: Base for tracks: Left + Right trigger for forward, backward, Left and right shoudler for turn left, turn right
1 L: Bucket wheel + Upper Belt: Y button to turn on/off (brickcontroller used to set the speed)
1L: Lower Belt: B button to turn on/off (brickcontroller to set speed)
1L motor each: Left stick: Up/Down to tilt the bucket wheel up/down, left/right to swivel entire bucket wheel left/right
I did not motorize the swivel function on the lower belt