Activity+4


 * GrabberBot - Activity 4 **


 * The Mayan Challenge IV – GrabberBot in King Ixtua's Tomb **

King Ixtua and those small spider monkeys are really complicating your life. You got past three of his traps with. Now you have a new challenge in the tomb. Thank goodness for your NXT Mindstorm. It's still smaller than a spider monkey – and isn’t eating your snacks – always a plus.

OK, you got the door to the tomb to open to the throne room and deactivated the booby-traps on the throne room floor. But now you see a rather important looking scroll down another tunnel. It’s not long but it has – you guessed it – pressure plate so you can’t just snake down there for the scroll
 * Problem **

**Your Mission** – yet again, NOT impossible –and which you must accept :-) Design and build a robot that go down the tunnel, deactivate the pressure plates, take the scroll gently from its resting place, and return to the tunnel entrance with the scroll in good condition.  Complete the three discussion questions on this page and meet the challenge.  The first team to succeed (and complete the Discussion questions) gets 5 points towards their final score. The second team gets 3 each and the third team gets 2 each. Good luck!

The tunnel looks to be about 4ft. long and 2 ft. wide. It looks like the scroll is about 12 inches across and 1-2 inches in diameter. It’s sitting on a pedestal that seems to be between 4-5 inches high.
 * Tunnel and Scroll layout **

**Build It**

Build your own robot or use the [|GrabberBot example]

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Return to Mayan Adventure

Based on ExploreBot chapters in LEGO Mindstorms NXT- The Mayan Adventure by Jim Kelly. Taken from []