I designed  this compost bin as part of an article by Sarah Moise Young that will appear in the Local Palate magazine January Issue.  Sarah and I constructed this in an afternoon, and the budget was slightly under $200. Hardwire cloth is attached to the open areas, the top is hinged with a 3″ butt hinge, and the separator boxes are bolted to the base runner frames. The slats drop in and are pulled out only to turn the compost or remove it.