Duet2 with two heater cartridges

[rexx]

Hello all
What is the best way for me to activate another 50w heater and tie it to the one thermistor

[fcwilt]

@rexx said in Duet2 with two heater cartridges:

Hello all
What is the best way for me to activate another 50w heater and tie it to the one thermistor

What is the physical arrangement? Is the new heater heating the same thing as the existing heater?

Frederick

[rexx]

Yes I would add a second to the hot end for a total of 100w 50w each into one hot end

[fcwilt]

@rexx said in Duet2 with two heater cartridges:

Yes I would add a second to the hot end for a total of 100w 50w each into one hot end

Something like this - I'm only showing the commands relevant to your question - your setup will likely be different.

M308 S0 P"temp0" Y"thermistor" T100000 B4138              ; configure sensor 0 as thermistor
 
M950 H0 C"out0" T0 Q250                                    ; create heater output and map it to sensor 0
 
M950 H1 C"out1" T0 Q250                                   ; create heater output and map it to sensor 0

Frederick

[rexx]

Ok I get that part thank you, but where would I get the power on duet 2 is the line out able to support 100w wired 50 each or how is best to make it complete to one tool/hotend/head...thermistor is another board needed

[fcwilt]

@rexx said in Duet2 with two heater cartridges:

Ok I get that part thank you, but where would I get the power on duet 2 is the line out able to support 100w wired 50 each or how is best to make it complete to one tool/hotend/head...thermistor is another board needed

The duet has two extruder heater outputs E0 HEATER and E1 HEATER - each is good to 6 amps - a 50 watt heater on 24 volts should draw a bit more than 2 amps.

Frederick

[dc42]

As they are heating the same thing and the heaters draw only 2A each, it would be best to connect both heaters in parallel to a single heater output.