Prusa MMU2 assembly body fan
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3D model description
modified version for 42mm stepper motors using a 40mm fan.
I did some additional testing with a infrared thermometer.
all the motors on the MMU2 and the MK3
the thermometer has an error of about 10 degrees F
without the fan:
the MMU2 right side motors stayed in the mid 90sF
the left drum motor was over 100F
the Z steppers stayed around 101F
and the extruder motor was the hottest at 120F
i also compared these readings to my MK2S where the motors were over 100F all around the machine with the extruder being the hottest around 110F
with the fan running on the MK3 MMU2 on the drum stepper it only lowered the temperature to 94F
additionally the Cooling Fan does add a vibration to the machine that vibrates the frame down to the legs.
my conclusion is with the latest Firmware 1.0.2 the motors are running much cooler then before and the cooling fan is not really doing much right now so it will be removed from my machine.
however if you feel you need the fan then give it a try.
- 3D file format: STL
- 3D model size: X 70.3 × Y 44 × Z 45.5 mm
- Publication date: 2020/02/04 at 02:11
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