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Picture of NXT Dynamo Car! NO BATTERIES!
I will show you how to make an Lego Mindstorms Car without using any batteries to make it move!

See? I wasnt joking:)

Step 1: You will need:

Picture of You will need:
NXT Mindstorms 2.0 Kit:
2 Electric Mindstorms NXT Motor
2 Technic Axle 9
1 Technic Axle 5
4 Technic Bush 1/2 Smooth
1 Technic Bush
4 Wheel 43.2 x 22 without Pinholes, with External Ribs
4 Tyre 43.2 x 22 ZR
2 Technic Gear 36 Tooth Double Bevel
1 Electric Cable NXT 50cm
If you are not sure what parts you have, visit this website
http://static.robotclub.ab.ca/pages/nxt/InventoryComparison/nxt_1_vs_2_vs_edu.html
 
There's a cable sticking out of the motor, it's hooked to the nxt which is off camera.

Actually, your wrong. It is NOT hooked onto the NXT, and the NXT is not off-camera either. In fact, I even tried this, and it turns out energy can be transferred between 2 motors. But he didn't really mention that the car can't steer.

Oh wait i see what you did nevermibf
Good idea! I've done this many times with model motors. Why didn't I ever think to do it with Mindstorms? :)
samando3 years ago
Nice Instructable, I found that this technique makes for very good proportional steering on wire-control models.
NXTHacker (author)  samando3 years ago
yep:)