2x72 variable speed skate wheels belt grinder | $50 build

I decided to build a new 2x72 belt grinder with variable speed control using treadmill motor. Most of the material for this build was recycled form junk. The motor has more than enough speed and torque to do the job. With the minimum cost this grinder is not as good as expensive one but it is definitely usable and worth the time I spent to build it.