fan 0 and fan 2 operation by slicer simplify3d help!
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sorry for my short english, is there a way to make fan0 and fan2 work as the only door seen by the various slicers? or is the only solution to use fan 0?
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@fr4nc3sco said in fan 0 and fan 2 operation by slicer simplify3d help!:
sorry for my short english, is there a way to make fan0 and fan2 work as the only door seen by the various slicers? or is the only solution to use fan 0?
You can use M563 to map one or more fans to tools https://duet3d.dozuki.com/Wiki/Gcode#Section_M563_Define_or_remove_a_tool
So to use both fans 0 and 2 as part cooling fans, use M563 Pn F0:2 (where n is the tool number which will be 0 if you only have one tool).
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thank you so much I solved it to perfection
one last question with this fan configuration I was able to make them start from 2% to 100% only that they are not constant but a little on-off is a way to make them more constant without penalizing the percentage? increasing the F I get a worsening for the starting percentage; fans
M106 P0 S0 I0 F0.18 H-1; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned on
M106 P1 T45 H1
M106 P2 S0 I0 F0.18 H-1; Set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned off -
@fr4nc3sco Are you getting the F and S parameters confused?
The F parameter is the frequency in Hz and the default is 250 Hz so 0.18 is very low.
The "S" parameter is the PWM value (mark-space ratio) which can be defined as either 0-255 or 0-1.0.
So M106 S0.02 F250 would run the fan using 2% PWM at a frequency of 250 Hz and M106 S1.0 F250 would run the fan using 100% PWM also at a frequency of 250 Hz but as the fan would be permanently on, the frequency is irrelevant in this particular case.
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@fr4nc3sco, you might want to check out the B parameter too, for more reliable startup at low speeds.
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@deckingman said in fan 0 and fan 2 operation by slicer simplify3d help!:
@fr4nc3sco Are you getting the F and S parameters confused?
The F parameter is the frequency in Hz and the default is 250 Hz so 0.18 is very low.
The "S" parameter is the PWM value (mark-space ratio) which can be defined as either 0-255 or 0-1.0.
So M106 S0.02 F250 would run the fan using 2% PWM at a frequency of 250 Hz and M106 S1.0 F250 would run the fan using 100% PWM also at a frequency of 250 Hz but as the fan would be permanently on, the frequency is irrelevant in this particular case.
tested this configuration
M106 P0 S0 I0 F250 H-1
I attach video to see what it really does ...
https://vimeo.com/user98280453/review/334974393/8be5172058 -
@fr4nc3sco That link doesn't seem to work. Can you describe what happens in words?
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@deckingman I think this is his video: https://vimeo.com/334974393
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the video is the one that in practice only works 100% under no part
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hello,
no one can help me? -
@fr4nc3sco Well, not all fans play nicely with PWM and it sounds like yours might be that type. You said that you had tried a frequency of 0.18Hz which is really too low. That's why I thought you might have been confusing the F and S parameters because 0.18 would be a valid number for S (although many slicers use the 0 to 255 range rather than the 0 to 1.0 range).
I have some very small part cooling fans that I've managed to get working by using a PWM frequency of 10 Hz. Try that, or a frequency close to it.
