This bin allows us to fill one compartment over time. When it's full, we transfer the contents into the second bin and begin filling the first again. When it's full again, the contents of each bin get turned into the next bin again. By the time the waste comes out of the third bin, it is finished compost, ready for use.
Just a note about the Metro Vancouver plans: it's a great system, but the plan material list is short on wire mesh and screws -- you'll double of each to make it work.