turning eggs

[loveourbirds]

give me a sec. ill make a drawing

 

[loveourbirds]

red is the heating element (doesn't blow like light bulbs) the water pan is in blue. the fan (an old computer fan) is in gray anything black is wood. i am showing it as a double lidded incubator. open the first lid to access water and the second for the eggs. the air would work in a circular pattern like you mentioned. possibly put an adjustable vent behind the fan in the lid. and of course side windows so you can see what's going on.

 

[loveourbirds]

that is the same principal used in a lot of larger more efficient incubators made small. the turner could be a short stroke linear actuator running a rod back and forth to turn. and i do have an idea for a 2 hour timer.

 

[JLaw]

Ok I see what your doing there. sorta like a shelf for the extra stuff on top of eggs. I like the idea of that. I was thinking a port to add water into pan but even with your set up could do a flex tube going down into the pan to add water. The only problem I could see with that is if fan aint strong enough to move air to bottom. But even then with a theromostat on bottom it wouldn't shut off till it got up to temp I guess.

 

[loveourbirds]

i was figuring on putting the thermostat on the side on egg level, half way back. a wafer type thermostat was my plan, but that's what i have the best luck with. you can use whatever type you like.