4.8.0 shuts off cooling fan after intro line

[hendo_jr 0]

Hey guys, every time I slice and export a file the gcode tells the printer to turn off the cooling fan. I changed the start gcode line to turn on at the beginning so it will turn on during the intro line but after that it shuts it off and I have to manually edit the code to turn it back on. I checked the print settings and the print cooling setting is on and at 100%, I also looked at the fixes for previous versions and everything is how it is supposed to be.  

[Mari 36]

Please share all your settings for cooling... There are settings that shut-off cooling the first few layers... I never had any problems with these settings...

 

Edited December 20, 2020 by Mari

[hendo_jr 0]

[GregValiant 1,251]

And if you would post one of the "bad gcode" files here we can peruse it.  Sometimes the clue to where to look in Cura is within the gcode.

[hendo_jr 0]

I did get it fixed. the problem was the initial fan speed had to be set to 100% and the regular fan speed at layer had to be set to layer 1.  I wasn't able to screenshot the gcode but I will update the post if I do. Thank you for the help.

Edited December 20, 2020 by hendo_jr

[Mari 36]

You don't have to "screenshot" Gcode, you can attach the file to the message...

 

It is normal to switch off the cooling fan for the first few layers... I only change fan-speeds when printing PETG instead of PLA... But now you know where to change it 😉