Modular removable 3.5" drive bay that can be customized to any case or mounting scenario. This version fits a Great Wall CORN KM7B which has 4 two-drive modular bays, but can be easily adapted. The cage is based on another upload from the same basic chassis, but this has been strengthened slightly, and widened to accomocate the wider mount points. I expected to need to add heat press inserts, but it works just fine as-is. Also added a spacer since some SAS/SATA adapters can vary in height. 

Recommended to print in PET-G, ASA, or ABS with 3 walls due to the constant heat. The infill won't mater much, but I used 40% in PETG.