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Sharebot3D / Materia101

Marlin firmware for Arduino Materia101
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Question concerning the fans on the extruder #2

Closed kengdahl closed 9 years ago

kengdahl commented 9 years ago

When the machine lays out the first layer the fan cooling the motor does not spin. I would think it would make the motor hot.

  1. Is this intentional?
  2. Is the fan colling the extruded material and the fan cooling the extruder motor synced? Do they have sepperat outputs?
  3. If they do have separate outputs. Could you fix the firmaware so that the motor cooling is running even when the first layer is being put down. And why not make it spin a few minutes after machine is done printing.
Sharebot3D commented 9 years ago

Hi Kengdahl, you are right the motor fan should start when the motor spin.

  1. No, it's a bug.
  2. No, the expected behavior is that the gcode controls the extruded material's fan so the starting layers can be left hot to best attach to the build plate and the motor fan start spinning when the motor is turned on. They have separeted control pins.
  3. Sure, I have just committed a patch to get the correct behavior.