Cable Spooler
thingiverse
Great way to store a device cable for transport back and forth to school in a backpack. Designed by Michael S. this will require a bolt and two nuts (lock) and maybe two washers to hold assemble. To help you choose a bolt that might work, the diameter of the bolt hole is 8mm and the depth from front face to back face of the assembled spooler is 40mm.
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