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Hot end fan

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I build my Ultimaker, but i am not shure weather all is working fine.

I have made my first prints and they look optimziable but akzeptible.

But i wondering about the extruder fun. The fun is not working. I checked the connections but i found no misstake.

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are you sure you plugged in the cables into the right plug on the top of the hot end.

i think the correct one for me was, purple... yellow.

also dont be too worried if the little fan doesnt work, the little thing does not normally have a long life and reliability is a little.... iffy ?

after 2 weeks of printing and testing, 1 blade from my original fan shot off the fan and then... dead...


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there was only one possibilty... ?

i plug the black electronic cable to the fan cable (2 pins) and the other end (2 pins purlple,blue) to the electronic board between the endstopper and the x motor.

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To my understanding, the G-Code file makes the fan start and stop. Can you manually power it up with the ulticontroler?

Yes, you can - and even dial in the speed from 0 to 255 (although mine won't start until around "60").

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