ROBO 3D 360 Degree Fan Shroud.

thingiverse

The print should be printed vertically with supports from the build plate only. The arch that is created printed fine for me. I added a support directly into the model where the fan slides into to allow the top part to be printed without needing support. I also added a rib into the model to keep the print upright on the print bed. Both snapped off perfectly for me. Inside the air passage there are many 1 mm wide slots that allow the cavity to be printed without support which wouldn't be able to be removed. This duct does limit your Z axis though. I have not measured by how much but I am still able to print 6 inches in Z easily. X axis is not affected however. The design also divides the air flow inside into fifths with one fifth being directly out of the straight part behind the nozzle and two fifths going to the right and left of the nozzle. No additional hardware is needed, it uses the same screws that hold the stock cooling fan on. The fan just slides into the top of the print. However this duct does limit your Z axis. Print Settings Printer Brand: Robo 3D Printer: R1 ABS + PLA Model Rafts: No Supports: Yes Resolution: .3mm Infill: .1% Notes: The print should be printed vertically with supports from the build plate only. The arch that is created printed fine for me. I added a support directly into the model where the fan slides into to allow the top part to be printed without needing support. I also added a rib into the model to keep the print upright on the print bed. Both snapped off perfectly for me. Inside the air passage there are many 1 mm wide slots that allow the cavity to be printed without support which wouldn't be able to be removed. This duct does limit your Z axis though. I have not measured by how much but I am still able to print 6 inches in Z easily. X axis is not affected however. The design also divides the air flow inside into fifths with one fifth being directly out of the straight part behind the nozzle and two fifths going to the right and left of the nozzle. No additional hardware is needed, it uses the same screws that hold the stock cooling fan on. The fan just slides into the top of the print. However this duct does limit your Z axis.