December 20, 2012
A differential can be used to make a plow go forward or turn.
A pawl and ratchet is used to stop one wheel when the motor in in reverse.
Clean off the snow.
Rubber bands can be used.
There are many ways to motorize a plow.
http://netapps.marshall.edu/lego/lessonplans/SnowPlow/SnowPlow.html
This class has battery packs. regulator, WeDo and RCX with ROBOLABTM.
