I am building a BIG egg incubator (up to 448 eggs) Didn't start out that way but I just kept adding and adding I had a little giant egg turner from an old Hovabator incubator and used it to measure how far it turns the eggs... 30 degrees one way and then the same back the other way. So I built my egg turner trays with just enough room to clear any baby chicks I might stick in the bottom and only turn 30 degrees each way. In doing a little more research I have read that 45 degree is what is needed. Did I just royally screw up? These eggs will sit in cartons on a rack not laying flat FYI Here is a pic of it... Each rack will hold 112 eggs and the floor can be where the lockdown chicks go.