Synology Disk Tray (Type R7)

thingiverse

I started with the RS818+/RS818RP+ HDD Caddy stl (which seems to be the Disk Tray Type R8) and modified it to fit in my RS3617xs+, which takes the Disk Tray Type R7 - see https://www.synology.com/en-eu/products/spare_parts?search_by=category&category=HDD%20Tray%2FHolder In short: - moved the HDD deeper by ~8.23mm - added 6 bottom screw holes (used dimensions from a WD reference doc) - filled existing 4 lateral screw holes and added 4 new ones in the deeper position - added screw enforcers and holes for 2.5" drives - made the sides a bit taller If you have issue with clearance due to the screws, please use countersunk screws, which will have their heads flush with the plastic surface. I have designed it to for: - 3.5" HDDs - #6-32 screws - 2.5" HDDs - M3 screws (e.g. M3x48mm, but don't blame me if you use too long ones and damage your HDD!) I am still a noob in Fusion360, so this might have lots of mistakes. Next I was thinking of adding the latch mechanism, but... I have some concerns about whether this approach of a printed plastic part would be good for the cooling of the hard-drives. Investing 18 EUR x 12 trays would be cheaper than breaking even just one 250-300 EUR hard-disk. Would appreciate comments, if you spot something wrong with it.