I have a Nevermore filter with 24v fans, would it be fine to connect them to the parts that I have circled on my Prusa MK4?

Or is that dangerous?

  • chrischryse@lemmy.worldOP
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    2 years ago

    Idk what type of connector my printer uses since my fan is different

    How about a raspberry pi?

    • FuglyDuck@lemmy.world
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      2 years ago

      Pi’s are usually 5vs, they won’t drive a 24v fan happily at all.

      At that point what you can do is a power relay- like how most bed heaters work. That could be controlled by a pi, but delivers power from a 24v source.

    • Dangerhart@lemm.ee
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      2 years ago

      Powering the fan from gpio pins probably isn’t going to work out well either, they are 3.3v and 5v. Powering the fan from the PSU is going to be similar to powering a pi off it, I believe you should step the voltage down to what each needs, where the fan is 24v I think the pi is 5v. Your PSU is probably 115 or 220 v. For connectors I would expect to have to redo them yourself with micro fit, molex, jst or w/e you want and can get. On some of mine I just did single pin molex on the pins of the white female connector for fan headers, it doesn’t lock but it works if you don’t have a lot of movement. This page is awesome for connectors info https://www.mattmillman.com/info/crimpconnectors/common-jst-connector-types/

      • chrischryse@lemmy.worldOP
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        2 years ago

        Seems complicated I might just connect it to and adapter I can plug my 24v laptop charger into or just getting a buck converter

    • Dangerhart@lemm.ee
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      2 years ago

      Honestly if your going to go through all this effort to make this work, and already have a pi, I would suggest instead upgrade the control board to something with extra fan headers, led heads, etc and switch to klipper, there have to be guides out there for your specific printer