So, I have a RPI Kubernetes cluster now. Built as a learning tool for work. 4 systems, using Raspberry PI 4B 2G systems, Power Over Ethernet (POE) Hats for each, and a 5 port 1G POE switch. All cases and the rack they're going in were 3D printed over a few days on my CR-10S.
I'm still working out a cooling solution. I currently have a USB desk fan blowing over them, which keeps them at 33C, but with only passive heatsinks, they will run between 75C-79C. I need to design a housing for a 20mm fan, then come up with a power solution for the fans. I have a few ideas, though.
Once they are properly cooled, I will take them to work and start using them to develop and deploy our apps as microservices.
Anything you want to chat about...it doesn't have to be related to 3D printing!