Screwless 3.5" drive caddy for Dell Poweredge 1900/1950/2900/2950 servers.
The vent holes are circles so they should not need supports. If you set the "Support Overhang Angle" setting in cura to 80 degrees it will put supports only where needed.
Poweredge2900_Drive_Caddy-Part.stl | 849.5KB |