I have given my last incubator to a friend, now I am without one. I have been searching the internet for some time and I think I have found a design that I really like. www.the-coop.org/wwwboard/discus/messages/1/6496.html I want to modify it a little by adding a hatcher on top. Both will have a separate heating and humidity control. I have some Nichrome wire that I can use to make a heating element, and I will use a water heater thermostat. I want to be able to use an automatic egg turner in this one. I am thinking of building something that is about 24" high x 17" deep x 17" wide. I will use exterior grade plywood. I want to build a box with the above dimensions and then insulate it with 3/4" insulfoam. Then build an outer shell using the same plywood. This will be like a sandwich, plywood-insulation-plywood. Should retain heat very well. All sides of the plywood will be epoxy coated and the joints will be glued and nailed. I want to put a window on top for the hatcher that will have a hinged lid. and a window on one side for the incubator, the side will have a door also for the incubator. I tried to give a general idea of what I want to build, If anyone has any sugestions or criticisms please make a post.