Large Round Millstone Mill Stone

I used Meshmixer to cut off the face of @soonoman 's Millstone he posted. Then used tinkercad to mirror, extrude and add a square hole. Made for my father for Father's Day as he has always wanted a Millstone. Model is 8' diameter 14hr print, but you can print any size you like. 4% infill with .28 layer height worked fine.