Custom JBOD/External HDD trays

Hello! This is an external hard drive/HDD storage tray. This is a WORK IN PROGRESS! The screw points currently do not work but I am working on that. The model has tray guides on top so they are stackable with more of them. They fit 3.5 in HDD's. This model is great for someone who is making a home lab or a home server and the computer case does not have anymore room for more hard drives. If you have recommendations or any constructive criticism, please tell me! I would love to improve this model. Thanks and happy printing!