To make the robot able to build things such as Lego's. You can program it to put things together or scan instructions.
Other robots from Synthiam community

Daman's Yet Another Wall-E
So I built my Wall-E months ago after receving it the day after I finished Metal Box-Bot, but I havent got around to...

Leversofpower's Roboquad Redux
The Wowee Roboquad had a labotomy and now its getting the hack de jour put to it... No remotes, IR codes, waiting,...

Kashyyyk's VINCENT From The Black Hole
Here is my Vincent from the black hole. Im using the Iotiny. I have a Raspberry PI to run an ekg video in a LCD screen...