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Controling Fan

http://geeetech.net/forum/viewtopic.php?f=24&t=16295

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Controling Fan

Posted: Fri Apr 24, 2015 2:49 am
by Khilborn
I have the I3 Pro B with the Sang.... board, why can't we control the fan. What I mean is turn it off, change speed, etc? I tested and put in a manual GCode to turn the fan off on the extruder and it does nothing.

Re: Controling Fan

Posted: Fri Apr 24, 2015 9:30 am
by zhangxueyou
Sorry, there is no any controlling component in fan's circuit, so you can not control it running or not, or its speed. As you turn the printer on , the fan will work too.
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