50mm fan mount for mini greenhouse

I had issues with humidity in my mini greenhouse, so I decided to attach a fan that adjusts the speed based on the humidity level inside the box.

In the somewhat unlikely event someone else has the same greenhouse and want to add a fan, it's printed in PLA with organic supports. The holes to mount the fan in are 4mm wide and are made to fit M3 heat inserts. I used a 5020 fan but it would fit any other 50mm fan as well.

I also added the fan to test using forced positive pressure airflow and automation in order to deal with humidity and mold and will be a central part when designing the airflow system for a larger terrarium project I'm working on. Currently I'm growing strawberries from seeds and have attached sensors for light, humidity, CO2 and a camera for monitoring and timelapse. Next stage is to move all the parts to a bigger growth chamber.