That's why I like my turner (AKA the youtube guy's homemade design); it moves the eggs back and forth across the bottom of the bator slowly while the eggs are on their sides.
Here's my incubator again. The metal you see across the top is what the motor sits on. It sits parallel to the bottom and the 360 degree motion of the turner is what slides the turner across the bottom.
As for temp: I second that. I noticed that, after my father hooked my bator up to a computer-controlled temperature control module, my hatch rate doubled, even with shipped eggs.
This is great! I agree with Sally, start a thread! Would love to see how this works. My DH can make anything. :)