It’s difficult to get gears with only five teeth to drive each other smoothly Posted on 2020/11/21 by Carl Robitaille Ordinary gears don’t cut this much into their neighbour’s space. It’s also difficult to get gears with only five teeth to drive each other smoothly. https://t.co/ONCnKtiC1U— Henry Segerman (@henryseg) November 22, 2020