Thanks Mary, I'm just a good copier with a propensity to tinker things into being just a bit prettier plus I love studying soil science. It helps to have 3 engineers in the family with one of them willing to build a prototype. I forgot to add stirrers are needed to help keep the compost from clumping. These are just threaded pieces of rod going through the axel with locking washers and nuts on both sides to hold it tight to the axel.
