All the hard work is done. All that rests, is up to the publisher for the final job..
Some of you may have wondered about the model on the cover image.
Let me explain some of the development rules I used to create this CraneBot.
As a starting point I looked at the RoboArm T-65 if I could build an improved grabber arm.
These were the points I decided to improve:

  1. Make sure the gripper as a firm grip (hold the ball better).

  2. Turn a full 360 degrees, so the NXT had to be mounted on the turning part of the arm.

  3. Detect the ball automatic, with the Ultra Sonic sensor.

  4. Stand on a firm foot.

  5. Have an extended reach.

I added a teaser page of the building instruction for the gripper, but for the full instruction set you will need to wait a little longer…

Building Instructions CraneBot.


Bijoy said…
Cool blog, i just randomly surfed in, but it sure was worth my time, will be back

Deep Regards from the other side of the Moon

Biby Cletus
Anonymous said…
I like your blog, was just browsing it. I am also a fellow Lego enthusiast and you can find my blog at
Feel free to leave a comment.
Anonymous said…
It's cheaper at and has a earlier release date. Heres the link.
Anonymous said…
This may be way off topic, but it needs to be said,My computer will not download the gyro sensor block, and i'm pretty disgusted after I Payed so much money for it.
Maybe someone could post a possible resolution?

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