http://www.brickshelf.com/cgi-bin/gallery.cgi?f=141343

Nothing really thrilling here (if you compare it with that 1:1 scale MER model....),
however, it nicely demonstrates the inner workings of the rockerbogie suspension system.
Especially the image called 'differential' explains how this system can work with only 2 pivot points on the rover body.

A couple of years ago I made a similar model, except with all wheel drive. I didn't have enough of the larger size wheels, hence the odd looks. But mechanically it does simulate the MER suspension. See photo and movie below.

Click to view attachment

Only a forum like this would appreciate such a simulation

Airbag

And here is the movie of the simulator in action.

Click to view attachment

Airbag

Wow! The dedication of the people here never ceases to amaze me.

very cool. I'll be in touch with you about this. ken

Nice job!
Although I'm afraid you're violating a JPL patent....