Nxt clone tank

Here are a couple videos of a clone tank my friend and I made. There are two dart launchers on each side, all connected by one beam, which is pulled by a motor behind it.

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 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.