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Caddy for holding x3 3.5 inch HDDs
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updated November 13, 2025

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I needed a caddy to hold multiple hard drives for a home built case for a NAS. This will hold 3x 3.5 inch HDDs, they are spaced to allow for airflow as per Seagate's specs. They are designed for standard HDD screws such as these: 

https://www.amazon.com/DSLRKIT-6-32-Screw-Drive-50/dp/B016OCJQBQ/ref=sr_1_8?crid=456QUWIL8LA&dib=eyJ2IjoiMSJ9.CY8kEnXtRVtnhAsMrKjeWkRPEe48tgwP67vM2yjXUOJlF_4oY285FTe1ZNb9QuvditQ-U5vjUZhmAKfwLQPY7_n_e7RiF2nK5HzbRCL38DS03udXUy7_183gO1GJzdr6uAAzcUVyLRv_DffzsUPHhRlZrq3yKhGf02O-tm4abIomeOzdIeIGJY_99dRmv8L_r_5B6zPQnh3kZDvK8wEFkvbcWcpKi_ZMmkx5hV6aiW8.vMGGkWVEvq4uXuQN7Ui_Qtbsvmsu0DUKQCo-_Lwc3_Q&dib_tag=se&keywords=hdd+screw&qid=1763040896&sprefix=hdd+screw%2Caps%2C181&sr=8-8

I printed using 30% infill in PLA for strength, I;m sure this can be lowered, no need for supports. Mirror for the other side.

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