3.5" HDD & 2.5" SSD to 5.25" tray

thingiverse

To install a hard drive or solid-state drive in the 5.25-inch bay, we need a reliable mounting solution that can hold its own weight. The previous design found at https://www.thingiverse.com/thing:3150892 falls short of expectations and requires improvement. For this project, any setting will suffice as long as it provides sufficient strength to support the drive. Infill density of 40% should yield a sturdy structure that can withstand normal usage. To add extra stability, no support material is required. If you want to modify or edit this design, I've included a backup file in Fusion 360 format for your convenience.