Ender 4 auxiliary Fan switch box
thingiverse
I downloaded and realized the fan bracket created by NGR923: see this link: https://www.thingiverse.com/thing:2444091 (brilliant stuff, by the way). First, I connected the fan directly to the 24Vdc power supply block... but..., not always great for the first layer.... (I just start in the world of 3D printing..., so a lot of things to learn...). So, I designed this little switch box with a bipolar switch and LED indicator and then I can decide when I want to turn on or off the additional radial fan. If it can help someone else...
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