how to make an automatic egg incubator with a capacity of 50 eggs

This video provides a tutorial on making an automatic egg incubator box with a capacity of 50 eggs in detail.
The size of the box is 60cm long, 40cm wide and 35cm high.
materials used
box = plywood 8mm
rack = landa teak wood, aluminum ram wire gauze, 9mm . aluminum pipe
outer layer of the box = wallnut pattern pvc sticker
inner layer = aluminum foil sticker
glass = acrylic 2mm
machine :
timer = omron DH48s
dynamo = KSW 4w, 5-6 RPM, AC current
thermostat = XH-W3001,
standard hygrometer
wood/mercury thermometer
foot box switch 2
DC current 8cm fan
5 watt bulb
fittings
cable
plug
etc.
for processing 4 working days..
because it's still testing...