[Trying to understand Fan Speed or is it a bug?]

Hi,

I have been using the Cara slicer for a while and love it, but I have a strange problem now that I have a fan setup for cooling.

Iam using Cura 14.09, and in the Expert settings I have the following settings under the Cool Section:

Fan full on at Height: 0.6mm

Fan Speed Min: 50%

Fan Speed Max: 100%

Min Speed (mm/s): 10

Cool head lift: enabled.

My layer height is 0.2mm.

When I slice an object and look at the gcode here is what I see for the M106 (turn on fan) command(s):

 

;LAYER:1
M106 S63
..
..
;LAYER:2
M106 S127
..

and that is all. My setting says that at 0.6mm which is layer (2) the fan should be on full 100% (M106 S255).

Perhaps I am not understanding how the fan settings work. Please let me know.

Thanks

Mark