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Very low temperature needed

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Hi there.


(Temperatures in celcius)


I am experimenting with making my own wax based filament, and for that I need a very low nozzle temperature.

The specifications specify 170 as the lowest the UM2 can go. but I need to go all the way down to 50 degree in nozzle and 30 degree on build place. Is there any way to obtain such low temperatures? I am open to alternate firmware if nessecary.




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The easiest way is to add a M302 command at the beginning of the gcode file or to your start gcode.


If you use Cura: you can switch the GCode Flavor to "Marlin" in the machine settings. This makes the start script available for customizing.


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The PID settings for the nozzle are tuned for around 180C to 240C.  So you might find the temperature is oscillating by 5C or more.  If so I can help you fix that.  Hopefully, you won't have to do anything as the PID system is pretty robust.

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