December 2001
Intermediate to advanced
448 pages
18h 49m
English
Content preview from Building Robots With Lego Mindstorms
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274 Chapter 14 • Classic Projects
the straight and rigid arm carrying the rack.We used a different approach, and
mounted a 24t gear over the left wheel steering assembly, driving it with a worm
gear (to be connected to the steering motor).
Once you’ve solved the front-wheel drive problem, you’re more than half way
to your goal of a four-wheel drive.What you must do next is build a traditional
rear-wheel drive system with a differential gear, then connect the front and rear dif-
ferentials with a third differential, whose body is powered by the main motor.
Switching Gears
If you want, you can complete your robotic car with a gear switch.A simple two- ...
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