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    Keeping the Filament dryer always on?

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    • gw3d3undefined
      gw3d3
      last edited by

      I have a custom build that has a built in filament dryer. After a print is completed all of the heaters shut down as usual.

      Is there a way that I can keep the dryer heater active after the print is done? The chamber blower is hardwired (always on) so it is just the matter of keeping the heater running at the requested temperature afterwards. I'm using Cura as the slicing software.

      Here is a copy of the config.g for heaters and sensors. It is not the most up-to-date, but it's what I had available to copy at the moment.

      ; Sensors
      M308 S0 P"temp2" Y"thermistor" A"Heated Bed" T100000 B4725 C7.06e-8 ; configure sensor #0
      M308 S1 P"nil" Y"thermocouplemax31856" A"Nozzle" K"J" F60 ; configure sensor #1
      M308 S2 P"temp0" Y"thermistor" A"Heated Chamber" T100000 B4725 C7.06e-8 ; configure sensor #2
      M308 S3 P"temp1" Y"thermistor" A"Dryer" T100000 B4725 C7.06e-8 ; configure sensor #3

      ; Heaters
      M950 H0 C"out3" T1 ; create heater #0
      M143 H0 P0 T0 C0 S450 A0 ; configure heater monitor #0 for heater #0
      M307 H0 R2.43 D5.5 E1.35 K0.56 B0 ; configure model of heater #0
      M950 H1 C"out0" T0 ; create heater #1
      M143 H1 P0 T1 C0 S190 A0 ; configure heater monitor #0 for heater #1
      M307 H1 R2.43 D5.5 E1.35 K0.56 B0 ; configure model of heater #1
      M950 H2 C"out1" T2 ; create heater #2
      M143 H2 P0 T1 C0 S100 A0 ; configure heater monitor #0 for heater #2
      M307 H2 R2.43 D5.5 E1.35 K0.56 B0 ; configure model of heater #2
      M950 H3 C"out2" T3 ; create heater #3
      M143 H3 P0 T1 C0 S90 A0 ; configure heater monitor #0 for heater #3
      M307 H3 R2.43 D5.5 E1.35 K0.56 B0 ; configure model of heater #3

      ; Heated beds
      M140 P1 H1 ; configure heated bed #1

      ; Heated chambers
      M141 P2 H2 ; configure heated chamber #2
      M141 P3 H3 ; configure heated chamber #3

      Thanks!

      chrishammundefined 1 Reply Last reply Reply Quote 0
      • chrishammundefined
        chrishamm administrators @gw3d3
        last edited by

        @gw3d3 You can set up stop.g and turn off only the heaters that were used during a print. If no stop.g is present, all the heaters are turned off.

        Duet software engineer

        gw3d3undefined 1 Reply Last reply Reply Quote 0
        • gw3d3undefined
          gw3d3 @chrishamm
          last edited by

          @chrishamm Thank you I will try this out.

          ;stop.g keeping dryer active

          M104 H0 S0 ;Turn off hot end
          M140 H1 S0 ;Turn off heated bed
          M141 H2 S0 ;Turn off printer chamber heater

          End G code in Cura

          ;Retract the filament and move tool head away.

          G92 E1

          G1 E-0.5 F300

          G28 XY

          M84

          M0

          1 Reply Last reply Reply Quote 0
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