Drive rail for Hikvision DS-9000 series security dvr

Whipped this up really quickly to mount some drives in second hand DVR my employer purchased. And it works. Not sure of all the models it'll fit and it's not perfect, but they don't pay OT on this stuff so “good enough to work” is all this'll ever be.

Print considerations:

• Because the pull tabs flex, PLA probably isn't the best choice for this. ABS, PETG or something with a bit more flex is probably better. Maybe even TPU.
• Don't stress on infill or walls, it's a thin enough model that it should be solid under most default settings.
• Definitely use a brim or that the very least mouse ears.