NXT Excavator-part 2

As promised, here is part 2 of the technic excavator. I added the lifter for the scooper, treads, and the NXT brick. next up: sensors and turning motor.

NXT Excavator-part 1

Yesterday I took apart my Lego Technic excavator so I could add motors and sensors to it. I started with the scooper, since it seemed easiest at of all the parts (I could be wrong). Other parts I'll add later will include the turning mechanism, lifting the arm up and down, and possibly driving.

NXT Bulldozer

The project I had the most Fun with was a Bulldozer. First I made a treaded base. Then I added some other attachments. The best one was the bulldozer blade. Here

are a few short videos of what the bot can do.