Here’s my design for a 3-node cluster, accommodating low-profile PCIe cards and up to 9 HDDs/SSDs. I haven’t had a chance to print it yet, as I’m currently attending courses. The design includes holes for cable ties, optimized for angled SATA cables, and features rounded edges to safeguard power and network cables. It provides space for a 120mm fan (note: edges need to be cut) and includes areas for cable management and a 12V to 5V converter for the SSDs above the fan. To reduce frustration during cable installation, the design is split into two parts that stack on top of each other.
sadly I could just post 1 rendering