Geeetech Prusa I3 Pro B Fan Duct

thingiverse

I designed this because all other parts I found didn't fit well enough or were too low and crashed into the paper clip that holds the print bed. Update 2016-10-02: I had an issue with my printer, caused by the cooling fan which blows air directly on the temperature sensor of the heater. This resulted in a way too high temperature for example I set the temperature to 215°C but through the cooling fan the heater thought it was too cold and heated up to 265°C. Make sure your temperature sensor is protected from the cooling air. I will design an additional part which covers the heater and the sensor. Or you use kapton tape to cover the extruder block with the heater and the temperature sensor. Update 2016-11-08: I designed a new fan duct: http://www.thingiverse.com/thing:1877005 This solves my issues and is more compact anyway. Update 2017-08-08: Designed and added a cover which should prevent air flow from getting to the temperature sensor. Print it as shown on the screenshot with support. I have not tested it yet, but it should work fine. Please leave a comment if you tried it. Printer Settings Printer: Geeetech Prusa I3 Pro B Rafts: No Supports: Yes Resolution: 0.2 mm Infill: 20% Notes: Print the duct on the side with support from the print bed.