Step 10: Mounting the grinder assembly
After mounting three interior sides of the box, I put in the rollers. With the help of a couple friends, I put the rollers in and screwed the outside panel on.
I had to create a crank mechanism to work the rollers, so I used a couple of bike sprockets welded to some large nuts by a friend. I then put those on the shaft that was threaded through the rollers and tightened the nuts fast.