Magnets

[Max]

here you go:
[attachment=0:3utlwe0i]magnet diagram.jpg[/attachment:3utlwe0i]

I thought the steel base would help with the magnetism as it would become one big magnet but i guess it will spread the force out giving less concentrated pulling.

will it help it i dont have the magnets in contact with the steel? with my current plan the magnets would be above the steel base but if neccisary plans can change! (ie. go back to 100mm wheels to give enoigh ground clearance to mount the magnets underneath the robot and then not tell my dad he wasted his money on 75mm wheels)