12v fan on 24v duet



  • Hello
    My duet is powered 24v and i want to use 12v fan. İs it enough to use with resistor an will it damage the fan after some period of time? Or the board? İ will uei on allways on fans slot


  • administrators

    Our recommendation is to use 24V fans - they don't cost much on eBay.



  • Alternatively, you can do as I've done, and use a buck converter between the 24v psu to feed a 12v supply into the V_fan terminal of the fan jumper block. This lets the duet and everything else function off the main 24v supply and the fans all use 12v.



  • @akrepsianka:

    Hello
    My duet is powered 24v and i want to use 12v fan. İs it enough to use with resistor an will it damage the fan after some period of time? Or the board? İ will uei on allways on fans slot

    I'm using a resistor. An accurate calculation is required by Ohm's law. For blowing two fans 12V. It's OK.



  • There are lots of threads on fans.
    Easiest options:

    1. use all 24v fans if you have 24v PSU
    2. use all 5V fans if you can

    Or search for buck converter/secondary PSU options.


 

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