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Lego technic IR control yellow robot
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This yellow robot can you control very easy with the two bang-bang controllers and the big one. It's weight is pretty big(2kg), but the weight of the two (low situated) battery boxes in the feet provide stablity. Top speed: 1,5 km/h In the stomach there are two driving rings powering four functions, namely: -turning of the head -turning of the arm -up and down movement of the hand -closing the hand. Funtions of M-motor in arm: -raising and lowering the arm. The two driving rings are powered by one M-motor. In the head there are three receivers + lights for the eyes. Really a big bundle of cables!
About this creation

This is a photo of the first part of the arm. Observe the two gear drives for the two functions in the arm. One of it is the closing of the hand and the other is raising and lowering the hand. Another M-motor for lowering and raising the total arm is under the yellow panel on the left.


The back of the stomach, in which you see two of the drive trains to the funcions.
It was a big challenge to get the drive trains in that position that they were able to endure the forces of all M-motors in the stomach


Observe the position of the M-motors in the front of the stomach.


You can see a drive train with 16 tooth gears. That was the only possibility I had to
get it from the left to the right.
The most difficult thing in this model was how to get the turning of the M-motors via the the driving rings to the functions. The red driving ring on the right is already the passing of two drive trains through the fulcrum of the arm.

I have also made a video of it, you can see it here:
Here was also a problem, because the robot was so high that I couln't make a video inside the house, so I made the film partly outside.




Comments

 I made it 
  August 1, 2011
It was really heavy, but the weight of the full battery boxes in the feet (500 gram) compensated that. Driving with the tracks was not difficult, also not for the XL-motors.
 I made it 
  August 1, 2011
It was really heavy, but the weight of the full battery boxes in the feet (500 gram) compensated that. Driving with the tracks was not difficult, also not for the XL-motors.
 I made it 
  August 1, 2011
It was really heavy, but the weight of the full battery boxes in the feet (500 gram) compensated that. Driving with the tracks was not difficult, also not for the XL-motors.
 I like it 
  July 30, 2011
Love it! Great functions and a cheerful design : ) A bit top-heavy maybe, but still 5 stars - awesome job
 
By Kees Hogenhout
Add to my favorite builders

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Added July 29, 2011
 


LEGO models my own creation MOCpages toys shop Lego technic IR control yellow robotTechnic


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