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2.5in to 3.5in Zero-Offset drive converter
Mount 2.5in drives in 3.5in backplane-style mounts with no ribbon cable or PCB adapterMaker/DIY
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Designed this after finding many of the cheapest "bent-metal" type adapters offset the SATA pins by 1mm or more, meaning the drive couldn't plug into a backplane-style SATA arrangement, as used in my QNAP TS-119 NAS box.
The installation pictured has a slender (~7mm) Crucial 120GB SSD, and is secured to the 3.5in mount with 3 (not 4) standard drive screws. The design has no threads in the holes, so you're cutting the threads the first time you place the screws into the plastic.
Fit is snug, but that's fine to hold the drive in place.
This drive is skinny. I've added (UNTESTED) STL files for 9.5mm and 12.5mm drives as well.
Materials and methods
I printed with PETG, 30% infill, .32mm layer coarse, 8mm brim and support on items touching buildplane. My own setup uses "coasting" to help prevent stringing, and uses "ironing" on the top layer only to clean up the look a little. YMMV.
Very happy with the result. I tried 90% infill on an earlier print, and determined that was overkill. Waste of time and plastic, for even the heaviest drive I could consider putting in there.
The screw holes threaded easily, but I wouldn't torque them down super-tight, so as not to stress out the plastic. The drive I'm using is very light, and solid state, so vibration backing the screws out is not likely to be a problem.
I didn't provide screw holes for the 2.5in drive, and thus obviously didn't use any screws for it. There are no locating pins or anything - it just basically clamps the drive down to the bracket bottom after it's been attached to the fixed-position SATA connector.
Hope this helps somebody!
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