50-40 or 40-50 fan adaptor

thingiverse

Human: A versatile fan adapter, adaptable to both 50mm and 40mm applications, works equally well when positioned either way up with properly secured bolts.\nPrint Settings\nPrinter: Geeetech Prusa i3B\n Rafts: No rafts used\n \n Supports: Supports are required\n Resolution: Printing at a resolution of 0.3 mm\n Infill: A dense infill pattern, set at 25%\nNotes:\nprinted with PLA\n200°C first layer temperature\n190°C for all subsequent layers\na constant bed temperature of 50°C ensures warp-free printing\nSupport setup features include an overhang threshold of -1 and support enforcement set to 0, rafts disabled\nA detachable contact distance of 0.2 is utilized in conjunction with a rectilinear grid pattern at no angle