That is quite neat! Nowadays they use those huge rotary snowplows, it is good to remember the plows. I am considering ordering one of those 3-d printer models just to try it. It looks like they are quite detailed and fit well. Cool.
Fairhope, AL USA
After extensive recalculation, I have determined that the meaning of life is NOT 42! The secret of life, however is "enjoying the passage of time" (James Taylor)