Just a few pictures of my incubator. We recycled the trays and fan as you can see in the picture - the only $$ spent was on the temperature controller. The controller cost about $60.00. I have hatched eggs from it all summer and had great turn out. My husband designed it. If anyone is interested on the design, he would be glad to answer any questions.
We recycled the trays from the refrigerator and used them on the sides.