Firmware/GCODE/Commands

[sfuelberth]

So is there some easy way I could make it so the heatsink fan does not turn on until the hotend actually starts to heat? I know there is M106/M107 but I think that might be the layer fan, or is this what I am looking for?

[djarmag]

Do you have a Rambo or Duet? (Mine is Duet) It is wired to be always on when the unit is on. You would have to bypass the board and wire directly from controller board PWM fan header to the hotend fan. Then you can control the hotend fan using FAN 0/1/etc depending on which fan you use.

As far as Rambo, it looks like you can use the Extruder 1 fan (if you aren't using dual extrusion) and control fan speed there.

[dc42]

On the Duet you can set a fan to be thermostatically controlled by the hot end and/or bed temperature. Users found this so useful that we now have the firmware drive Fan 1 in this manner by default.

[tehwadeski]

This is not exactly what you requested, but on page 4 of Mhackney's real v3 build thread he tackles this annoyance in a clever way.

I've linked to the page below.

http://forum.seemecnc.com/viewtopic.php ... 6&start=75

-W

[sfuelberth]

Thanks as I haven't upgraded to the duet yet I'll take a look at mhackney's build.