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    Low print quality Anycubic i3 Mega with Duet Wifi

    Tuning and tweaking
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    • newyork347
      newyork347 last edited by

      Hello, I'm having low print quality after I upgraded Anycubic i3 Mega to Duet Wifi. On photos: bigger part was printed with original Trigorila and smaller part with Duet Wifi. What could be a problem?

      2_1527720815711_IMG_2538.JPG 1_1527720815710_IMG_2536.JPG 0_1527720815709_IMG_2534.JPG

      rbjam83 1 Reply Last reply Reply Quote 0
      • rbjam83
        rbjam83 @newyork347 last edited by

        @newyork347 It looks similar to the issue that I'm having. I posted about it here: https://forum.duet3d.com/topic/5490/strange-moire-like-texture-on-prints

        Are you using a Titan Aero by any chance?
        Is your extruder motor 0.9 degrees?

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        • newyork347
          newyork347 last edited by

          All hardware is original (except Duet wifi), planing to do further upgrades after resolve this problem. Extruders are 1.8 degrees.

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          • newyork347
            newyork347 last edited by

            Just few more photos
            1_1527725257400_IMG_2547.JPG 0_1527725257400_IMG_2546.JPG 0_1527725239992_IMG_2545.JPG 0_1527725223387_IMG_2544.JPG 0_1527725289631_IMG_2547.JPG

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            • newyork347
              newyork347 last edited by

              This post is deleted!
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              • newyork347
                newyork347 last edited by

                Thats my configuration

                12_1527727326707_tpre0.g 11_1527727326707_tpost0.g 10_1527727326706_tfree0.g 9_1527727326706_stop.g 8_1527727326706_sleep.g 7_1527727326706_resume.g 6_1527727326706_pause.g 5_1527727326706_homez.g 4_1527727326706_homey.g 3_1527727326705_homex.g 2_1527727326705_homeall.g 1_1527727326705_config.g 0_1527727326705_bed.g

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                • BPisLife
                  BPisLife last edited by

                  I will look closer in a little bit but you currents are quite high. Try reducing them to 800mA. You don’t need to max them based on what their max capability but rather what you need. Also acceleration and Jerk should also be reduced as the default values tend to be high.

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                  • bartolomeus
                    bartolomeus last edited by bartolomeus

                    In addition to the reply above:

                    • Looks like you have not pid tuned the hotend and bed (missing config-override)
                    • Max temp of 280 is too high for the stock hotend (PTFE throat)
                    • Set max acceleration on X,Y to 1000 and make sure your belts are tight
                    • Set max speed on X,Y to 9000
                    • Reduce your extruder acceleration
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                    • newyork347
                      newyork347 last edited by newyork347

                      bartolomeus, BPisLife, Thank You for your help, I did it but it didn't fixed issue.

                      2_1527780008900_IMG_2552.JPG 1_1527780008899_IMG_2551.JPG 0_1527780008899_IMG_2550.JPG

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                      • BPisLife
                        BPisLife last edited by

                        Can you post the config file again? Have you calibrated the extruder?

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                        • BPisLife
                          BPisLife last edited by

                          By the way, if you let the printer run with the web interface going, does the temperature look flat over a long period of time (say 30 minutes) or is it all over the place?

                          newyork347 1 Reply Last reply Reply Quote 0
                          • newyork347
                            newyork347 @BPisLife last edited by newyork347

                            @bpislife said in Low print quality Anycubic i3 Mega with Duet Wifi:

                            ou let the printer run with the web interface going, does the temperature look flat over a long period of time (say 30 minutes) or is it all over the place?

                            I played with settings, still no luck, temperature is alway is same in browser. I suspect that problem could be with extruder, in this print it uses 3 lines to build side wall when it builds 3rd line(facing inside of part that I'm printing) extruder making some different noise, but not extruding. Same happens for next layer. Thats how curvy lines appear from inside. I'm really sure that extruder in working conditions, something with settings. Thanks for helping!

                            12_1527791635501_tpre0.g 11_1527791635501_tpost0.g 10_1527791635500_tfree0.g 9_1527791635500_stop.g 8_1527791635500_sleep.g 7_1527791635500_resume.g 6_1527791635500_pause.g 5_1527791635500_homez.g 4_1527791635499_homey.g 3_1527791635499_homex.g 2_1527791635499_homeall.g 1_1527791635499_config.g 0_1527791635498_bed.g

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                            • BPisLife
                              BPisLife last edited by

                              Ok, now we are getting somewhere. Can you also post your gcode for that file. Which slicer are you using? Also, I would bring your extruder current down to 1000. Its better to run the motors lower as it keeps them from getting too hot.

                              When you say same thing happens for the next layer, do you mean for all walls or only inside wall it seems to have an issue? Which extruder are you using?

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                              • bartolomeus
                                bartolomeus last edited by

                                Extruder acceleration is still very high.
                                Have you selected relative extruder in the slicer? And reprap flavour?

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                                • newyork347
                                  newyork347 last edited by

                                  I'm using Cura, Will reduce current to 1000. Problem only happens to inside side of wall. I'm Using extruder that came with printer, it looks like it have that stepper motor http://www.steppermotorshop.com/anycubic-nema-17-stepper-motor-bipolar-1-5a-40ncm57-1oz-in-4-leads-for-3d-printer-or-cnc-parts/
                                  I will upload gcode

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                                  • bartolomeus
                                    bartolomeus last edited by

                                    Also reduce your extruder acceleration.
                                    Download and install the latest Cura. There is a i3 Mega profile already bundled in Cura. Make sure you set gcode flavour to reprap and set the extruder to relative mode

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                                    • newyork347
                                      newyork347 last edited by

                                      @bartolomeus said in Low print quality Anycubic i3 Mega with Duet Wifi:

                                      duce your extruder acceleration.
                                      Download and install the latest Cura. There is a i3 Mega profile already bundled in Cura. Make sure you set gcode flavour to reprap and set the extruder to relative mode

                                      I have latest Cura with anycubic i3 profile, changed to reprap. Here is link to gcode https://drive.google.com/file/d/1yMk5IfvMBrTtCwyZ7EYB5OR-yhmC-Qoa/view?usp=sharing

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                                      • BPisLife
                                        BPisLife last edited by

                                        Out of curiousity what happens if you print with two walls? To me it sounds like a slicer issue but I don't know. What is strange to me is that the g-code only references "wall-outer" and never wall-Inner until very late in the print. I am not sure that means anything as I use simplify3d and its been a long time since I used CURA. As @bartolomeus said, make sure you set the extruder to relative.

                                        newyork347 1 Reply Last reply Reply Quote 0
                                        • newyork347
                                          newyork347 @BPisLife last edited by

                                          @bpislife said in Low print quality Anycubic i3 Mega with Duet Wifi:

                                          if you print with two walls? To m

                                          I will try to print two walls and will use slic3r too. I created second topic https://forum.duet3d.com/topic/5504/having-issue-printing-walls-with-duet-3d

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                                          • BPisLife
                                            BPisLife last edited by

                                            Take a look at this post. Seems to be a similar issue.

                                            https://forum.duet3d.com/topic/5490/strange-moire-like-texture-on-prints-solved/27

                                            newyork347 1 Reply Last reply Reply Quote 0
                                            • newyork347
                                              newyork347 @BPisLife last edited by

                                              Thank a lot for helping, I was able to make print quality little better (but still not good enough) by playing with Cura settings(mostly wall thickness). After I installed duet wifi I took Anycubic i3 Cura profile and changed flavor to reprap, for some reason same settings don't work for duet. Still working on it.

                                              I have a question: with anycubic I didn't had to do wall thickness setting and other too and had great prints, is it just Duet wifi(reprap firmware) thing? Can duet wifi print with same print quality or better as marlin ?

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                                              • elmoret
                                                elmoret last edited by

                                                @newyork347 said in Low print quality Anycubic i3 Mega with Duet Wifi:

                                                Can duet wifi print with same print quality or better as marlin ?

                                                Yes, most definitely.

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                                                • newyork347
                                                  newyork347 last edited by

                                                  Thank You, I think I was able to fix it, I changed extrusion factor on main page to 120% and temperature to 225 for pla, not sure what causing it, will test it tomorrow

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                                                  • whosrdaddy
                                                    whosrdaddy last edited by

                                                    Did you tune your heaters and did you perform a extrusion calibration test?

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