This comment may go counter to the attempts at recovery from us hatchaholics...but I see where you're talking about "Building" an incubator.
I have a situation here where I have one egg that is behind the others by too many days. They are being sat on by my broody silkie hen, not incubator. The egg is very important to me for a variety of reasons.
Can you please share your method, or a link to how to build an incubator?
I don't "need" it for long, just under a week. I have very limited skills for constructing anything.
Can you help?
thanks.
I did search on here and went from their ideas too my own