Simplistic HDD Caddy

SummaryThis is a very minimalist design for a HDD caddy I came up with when I needed to cram four 3.5" HDD's into a tiny case for my home NAS. It works well for a four disk array and I included a single, double, and triple spacer just in case anyone wanted to stack less than four. I have successfully stacked up to six however I do recommend 35% infill when going that high. After all HDD's can get heavy.The edges on the HDD support spacers are at 5mm which permits plenty of airflow between the dr