I have built a number of incubators over the years and now i have a walkin incubator cause i need the space. One way to build an easy incubator is the cooler build. My only issue with coolers is i like to be able to see in the incubator without having to open it too much. The smaller the incubator the quicker the heat escapes when you open it. Now the smaller the incubator the quicker it heats up as well. If you look on craigslist you can find glass front wine chillers, and glass front drink fridges all the time. You can even find em that dont work which is ideal since you dont need them to work. You just want the unit so those tend to be cheap. You can also find them at the dump. Get a unit with a glass door and simple put a strip of 11 inch flexwatt on the sides. You can use smaller flexwatt but i like the bigger stuff cause it heats up faster. Next you need a small fan. You can find a good small d/c electric fan from radio shack for like 20 bucks. The key with the fan is just to be able to move air. You dont want it too big so its cooling constantly. The next thing is shelving. Some of the units will already have shelving that works fine or you can go to home depot and use the wire style shelving. Its cheap and can be cut to size very easily. Once you get that done you need a thermostat. I good proportional stat is what you want. This is the only part of the build you never go cheap on as this is the brains of the operation. A container of water is needed for humidity.

Now incubation medium. There is alot of different mediums you can use and alot of techniques as well. I personally like vermiculite. Ive used it for years, it works, and i dont see any need in changing. You want to ad water to it until it stays clumped together without being able to asqueeze water out of it. Simply place the eggs in the containers. Dont bury the eggs. I poke holes in the lids of the egg boxes. Some people seal them completely with no air holes. Again personally i poke holes. Its how ive done it for years and it works for me. There are alot of ways to incubate eggs and the incubation process is the most importand and hardest part of captive breeding. This is why you need to build or buy a good incubation system and research as much as you can on the subject. Getting snakes to breed is the easy part. Hopes this helps