There are many great foods to eat in the world, and Tempeh is one of them. It is a foodstuff that is similar to tofu in some ways; but quite different in others. Tempeh often has a nicer texture than tofu, and is just as adaptable in flavor. "Hipster Tofu" is the shortest way to describe tempeh to a naive and disinterested 17-year-old.
My girlfriend loves tempeh, so I decided to make her a kitchen appliance to make the stuff. Upon researching tempeh further, I was suprised to find that it is grown as a mold on a variety of beans. The growing process has been done naturally inside of banana leaves in Indonesia for years, but holding the 85F incubating temperature in Indonesia is not a problem. In Cleveland, you can never count on the weather to be warm. Since the climate would not provide the needed incubation temperatures, building a countertop incubator seemed like the next logical choice... After searches rendered no off-the-shelf products that would work. So I set to work. There were some lightbulb based designs available from across the FabLab network, and a controller available for the BioAcademy buildable inventory; but neither of these excited me. I designed an incubator that could be built cheaply from spare 3D printer parts I had laying around in the lab. This design is a mash-up of Makergear M2 printer parts and RepRap parts. Although, any spare heated bed parts could work.
I hope you enjoy the design and that it may be useful for you. If you have any questions, feel free to reach out!
Corey Rice 12/29/2017
Countertop tempeh incubator built from spare parts for 3D printers.
Cleveland area FabLab inside of Mayfield High School. At the school's Innovation Center.
Laser cutting. Circuit milling. Plenty of soldering. Love.