A few days ago I finally got around to setting up a more permanent base for the solar food dehydrator which is something I've wanted to do for a week or so.  I used two concrete blocks as a solid, level base for the milk cartons and drying cabinet to sit on and then put bricks and large rocks in each milk carton to make a more solid structure. The only difficult part was leveling out the concrete blocks.

I also decided to try the new fan assembly on the underside of the drying cabinet instead of on the top of the heat collection box. So now instead of pushing hot air up the tube, it's pulling the air up.