4x 3.5" Hard Disk Stackable Stacker

thingiverse

I wanted to experiment with btrfs raid5/6 and needed an easy way to stack bare hard disks. Two of these devices accept four hard disks each, allowing them to be combined to create eight, twelve, or sixteen disk stacks possibly with feet for added stability against toppling while spinning. The picture shows four stacking components and four joiners forming an eight-disk configuration. Update: I've added base parts for increased stability on high stacks. Update 2019: The hard disks fit too snugly. In newer prints from my three-dimensional printer, you can barely fit the hard disks in at all. To correct this, I made a wider version of the design and included several more photographs. Instructions Print these parts in acrylonitrile-butadiene-styrene (ABS) instead of polylactic acid (PLA), as bare hard disks can become extremely hot. The design is relatively forgiving for print distortion, but use your best strategies to minimize distortion as much as possible. You will probably need screws that are slightly longer than standard to go through the two layers needed for combining/joining these modules since they are 2 millimeters thick each. If the hard disk threads and case screws are in good condition, there's enough thread available to obtain a secure hold using a typical case screw.