Hi,I installed the mosfet for the extra cooling fan and tested it by Manual Mode in S3D and over the Terminal in OctoPi with the code's: m106 (on) m107 (off) m126 (on) and m127 (off). It worked fine.
Then I create a .gcode file with S3D and then print it with OctoPi. In S3D I have set under Cooling settings, that the fan will start from the 1st layer with 100%.

But it won't start.


Are there some more settings I have to set in S3D or octoPi to get the fan to work while printing?


Thanks for ur help!