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    Adjusting PID Parameters for Best Temperature Management

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    • jackzzundefined
      jackzz
      last edited by

      Hello Everyone 😊,

      I upgraded the printer to the Duet 2 WiFi card recently, and I'm very new to the field of 3D printing. Although Duet3D's features and community support have greatly impressed me, I've run across a small problem that I'm hoping some of you may assist me with.

      I'm having trouble getting the best temperature control by fine-tuning the PID parameters on my heated bed and hotend. I've tried the auto-tune tool and read through a number of tutorials, but my outcomes are still erratic.

      Here's a quick summary of my setup & the actions I've already taken:

      Configuring a printer:

      • Model of printer: Ender 3 Pro Duet 2 WiFi, with firmware 3.4.0
      • Hotend: 0.4 mm nozzle E3D V6
      • Bed: Regular glass-plated heated bed

      Actions Undertaken:

      • Executed the M303 command to auto-tune the bed and hotend.
      • Enter the PID values that were obtained by running the M307 command.
      • Carried out several prints to verify that the temperatures were stable.

      Problems Experienced:

      • During prints, the hotend temperature varies by +/- 2°C, which results in slight variations in print quality.
      • The temperature of the bed is comparatively constant, but it takes a while to attain the desired temperature.
      • Every now and then, I have temperature issues that cause the print to pause; I have to reset and restart.

      I also followed this: www.reddit.com/r/ControlTheory/comments/o1g6xg/any_tips_to_tune_a_pid_temperature_mlops_controller/

      I would be very grateful for any guidance on the following:

      • Are there any particular options or factors that I could be missing that could aid in regulating the temperature of the hotend?
      • Advice on how to heat the bed more quickly and steadily.
      • General best practices that may not be included in the usual guidelines for Duet 2 WiFi PID tuning.

      I've received so much encouragement from this group, and I can't wait to absorb your combined wisdom. Thank you 👍 in advance.

      jay_s_ukundefined droftartsundefined 2 Replies Last reply Reply Quote 0
      • jay_s_ukundefined
        jay_s_uk @jackzz
        last edited by

        @jackzz did you auto tune the hotend as a heater or as a tool? if you're unsure, post the M303 command you've been using

        Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is

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        • droftartsundefined
          droftarts administrators @jackzz
          last edited by

          @jackzz said in Adjusting PID Parameters for Best Temperature Management:

          Duet 2 WiFi, with firmware 3.4.0

          Update your firmware, too. Latest: https://github.com/Duet3D/RepRapFirmware/releases/latest

          Ian

          Bed-slinger - Mini5+ WiFi/1LC | RRP Fisher v1 - D2 WiFi | Polargraph - D2 WiFi | TronXY X5S - 6HC/Roto | CNC router - 6HC | Tractus3D T1250 - D2 Eth

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