3.5" Vertical HDD Mount - Fan-Mounted (2x-6x, 120mm/140mm)

I needed more places to put hard drives in my home server. I found the mounts by sk_2002 and xcooling, but after printing the 4 bay version, I realized that my case had a 140mm fan mount on the bottom. some redesigning in sketchup, and two revisions later, I had these.

please note: 1) only the two-bay and three-bay versions are sized for 120mm fan mounts. the rest are all for 140mm spacing. 2) the mounts can be secured with standard fan mounting screws. 3) the holes to secure the drives have been elongated, so that you can put some vibration absorbing foam in the bottom of each bay if you like and still secure the drive in place. 4) the three and four-bay 140mm versions come in regular and 32mm offset styles, for additional clearance from the motherboard.