Summary This is a reverse engineered model of the tool-less drive caddy for a Cooler Master MasterCase 5 drive bays. Designed for people who want to print out their own in some color, other than black. It is a direct replacement for the slide mechanism of the drive bays. It should fit without modification. You will need to reuse the four pins from the original drive caddy's supplied with the MasterCase 5 / 5 Pro. Print Settings Printer Brand: Robo 3D Printer: R1 ABS + PLA Model Rafts: No Supports: No Notes: You could probably print this in PLA, although I would probably print it in PET (T or G) or Nylon of some kind. Most cases do not get hot enough internally to need ABS or other exotic filaments. I have not printed this myself yet, so I cannot provide any additional feedback. Despite the recess on the sides of the rails, the underside of the top edge has a fillet to make consumer printing easier without the use of supports. How I Designed This Reverse engineered an existing part from my personal MasterCase 5 Pro. It is built so that it can easily be printed on an FDM style printer without supports.