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Fan voltages?

Discussion in 'General Questions' started by Lazytron, Jul 4, 2024.

  1. Lazytron

    Lazytron New Member

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    Are all of the part/heatsink fans on the extruder end 12v? Just had the heatsink fan die and a couple of places mention of 24v (most of those in the course of modding) so I wanted to clarify before moving forward.
     
    #1 Lazytron, Jul 4, 2024
  2. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    I'll check it today, IIRC it is 24v, but I will check again.
     
    #2 mark tomlinson, Jul 6, 2024
  3. Lazytron

    Lazytron New Member

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    Checked it with meter earlier, looks like very slightly overdriven 12v/0.15a - i got some 12v/.6a replacements that should hold up!
     
    #3 Lazytron, Jul 11, 2024
  4. Lance Weston

    Lance Weston Active Member

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    The 12v supply on the Robo system board is way underpowered. The original design had a linear regulator that was under powered and the PCB designer selected an even smaller package, that means that the regulator is probably running in a temperature limited mode. If using larger fans it would be a good idea to replace the system fan in the bottom of the case with a 24v unit and rewire. This would help with reducing the 12v load.
     
    #4 Lance Weston, Jul 29, 2024
  5. Jack1212

    Jack1212 New Member

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    It depends on the printer model, but most extruder fans are either 12V or 24V. Check your printer's specs or fan label to confirm.
     
    #5 Jack1212, Nov 9, 2024
  6. Lance Weston

    Lance Weston Active Member

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    Robo R2 uses all 12v fans except for the system fan in the basement which is 24v
     
    #6 Lance Weston, Nov 9, 2024
  7. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Yea, the C2 is 12v fans (with 19v to the mainboard) the R2 is 12v fans with 24v to the mainboard. The basement fan I defer to @Lance Weston since I don't have one to examine :)
     
    #7 mark tomlinson, Nov 9, 2024

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