heater fan slow down when start printing
Hi guys, a little introduction: this is Marco from Italy, I started making some modification on my Anycubic predator, placing first a Duet 3 board... some issue solved but, i've some headhake with one thing:
When i turn on the printer the hotend fan is off, (I setup it to work in thermostatic mode at 50°C); when the hotend reach and pass that temperature, the fan start at 100%.... (good); issues come when I start printing (I use simplify 3D) because the fan slow down and I can't understand why. this (with wavy bed mesh) is making me Crazy.
Somebody can help me understand?
thank you all guys!
PS: this is my config File
M106 P1 C"Ventola_Dis" S1 H2:1 T50
Try changing the H2:1 to just H1
If that doesn't work please post a sliced gcode file so we can see if S3D is changing anything.
Hi Phaedrux, thank you for fast answer.
I've tried, unfortunately nothing change.
attached the last gcode i've made... I search for the M106, what i've not understood is how the board discriminate which fan start when it wrote M106 S255 when start the layer 2 on the example attached..
to complete the information (probably it helps understand where I get wrong):
(Ventola_Est = cooling for parts; Ventola_Dis= hotend dissipator cooling fan)
I see the problem now
M563 P0 S"Estrusore1" D0 H1 F0:1:2 ; define tool 0
That should be just F0 and not F0:1:2
The slicer doesn't know which fan it is controlling. It's the Duet that attaches a fan to a tool, and for you that should be Fan0 only.
thor3k last edited by thor3k
Hi again Phaedrux, that's it! thank you!
I put too much trust in my reprap firmware wizard
Thank you very much... now step by step I try solve other things on my config!
Are you saying that the config tool gave you that tool command with all 3 fans even though the screen shot only shows fan0 selected? Or was it edited afterwards?
I just understood what i've done, I opened the editor by the button on System folder:
i was thinking it was the actual configuration, but it's the first Json config i've made, probably the mistake come from there...
sorry if i gave you some wrong info