This one was kind of messed up to be honest.  There were various mechanical issues that I faced with the project, such as the chain falling off every 2-5 minutes or so because the sprockets weren't aligned properly, and altogether this led to one of the motors' gearboxes jamming.  I wasn't about to spend more money than I already had on this, so at that point for me it was totaled.  I also made some design choices that could have been way better, such as using a chain drive unnecessarily.  Apart from that, it did work for a short period of time, however, I just was not able to test it with actual snow, unfortunately.  During that short period of time, however, it was pretty fun to drive it around indoors!  Sure, the chain fell off every 3 minutes, and it never went perfectly straight, but I didn't really mind.  In my eyes, it was working okay.  Plus, it was able to push 50 lbs, so I guess I proved my point anyway.

 

The thing I liked about it the most was that it was all phone controlled.  I could just whip out my phone, turn on bluetooth, turn on the robot, and it would drive, just like that.  It used an Arduino Uno with an HC-06 Bluetooth module and also a Sabertooth 2x12 to control the drive motors.  To raise the plow up and down (my favorite feature), it used a linear actuator with an L298N motor controller.

 

So I guess there were a lot of things that could have been improved with this project, but honestly, I was on cloud 9 when it worked for like 5 months.  If I were given a chance to rebuild this, I would use a much ligher and simpler design.  I guess we all learn from our failures.