M106 toolboard setup

oozeBot

I need a moment's help.. I have two fans connected to the toolboard - both are working. Here is the current config:

M950 F0 C"20.out1"
M106 P0 T50 H1

M950 F1 C"20.out2"
M106 P1 S0 H-1

What I want is for P1 to trigger as the default cooling fan without explicitly stating the fan. As an example:

M106 P1 S255 | works
M106 S255 | does not work

What am I missing? Thanks!

deckingman

@oozeBot It's because the default part cooling fan is fan 0. So M106 Snn without a "P" parameter will always control fan 0. To map a different fan (or fans) to fan 0, use the "F" parameter the tool definition. https://duet3d.dozuki.com/Wiki/Gcode#Section_M563_Define_or_remove_a_tool

e.g. M563 P0 F1 will map fan 1 to fan 0 for the purpose of part cooling for tool 0. M563 P0 F0:1 would map both fans to fan 0 for tool 0.

oozeBot

So much to learn! It was the F0:1 I missed in the parameters for M563.. thanks!