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    Ender 3 Pro configuration

    Tuning and tweaking
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    • NoSkillzEngineer
      NoSkillzEngineer @baesjerker last edited by

      @baesjerker said in Ender 3 Pro configuration:

      Thanks for the tips. I store my filament in a closed box, but I do not have evadry. Could Silica Gel work as a substitute? I have a high quality calliper. Travel speeds are based on the Cura profile @Phaedrux posted yesterday. I think it was 120 or something.

      Thanks for that one @Phaedrux. It actually removed a lot of the stringing issue. Now it’s so much better.

      I have tried temps from 180 and up to 220. Results is almost the same.

      I will try some more settings in Cura. Trial and error.

      I have filaments from PrimaValue (green), Addnorth (transparent), Polymaker (red) and NinjaTek (white). I also have a no brand local black one.

      No I don’t have extruded pressure advance in my Config. I will check it out.

      Pick a filament and stick with it for now so there is less variation. You are looking for consistency, stick with Polymaker for tuning, in my personal opinion and experience.

      Evadry is silica dry beads, but in a thing that you can remove, plug into an outlet (it is supposed to get hot), it cooks out the moisture, and then you throw it back in the dry box. Worth every penny, I have six or seven of them around the house, three in older cars, one in the gun safe, one in a chest with documents and photos in it, and two or three in filament dry boxes. They really are so unbelievably convenient and quite very good.

      With PLA, I'd recommend no more than 210. I'm typically at 190-205 range, but the cooling of the filament must be improved on the ender cuz it's crap.

      120 for travel speeds are nowhere near high enough, again in my personal opinion and experience. I don't typically have overtravel issues (although I'm going to verify this with an indicator within the next two weeks). You can easily double that number without a single issue, in fact, I'd highly recommend it.

      I activate the visibility of quite a LOT of settings within Cura, I control as much as I possibly can. For example, extrusion width, wall thickness, number of perimeters, connect infill lines, initial line width, infill/perimeter overlap, et cetera, et cetera.

      I get high dimensional precision with a low-end printer because I take a tremendous amount of time tweaking and tuning each and every variable I can, even taking into account the compression and elongation of the thermoplastic from the extruder to the time it comes out of the nozzle. I set the XY & Z steps per mm way before plastic is ever even introduced or a heater is turned on. That way, I know the machine is accurate and I can focus on extrusion.

      As of right now, my extruder steps per mm for my Ender is 94. Then the microstepping value is handled by another code entirely.

      I tend not to change my steps per mm until I am absolutely certain it is not extrusion based as I try to come to my steps per mm as carefully and precisely as I can. 90% of the issues you'll encounter will usually be a result of improper slicer settings. That is why I tighten my stuff that little bit more, use solid mounts, assemble on granite, measure everything, and ultimately, why I get the results I get.

      I haven't touched my printer in a while but when I finish, I'll upload my my config and slicer settings both here and on github, along with my start and end G-Code:)

      baesjerker 1 Reply Last reply Reply Quote 0
      • Phaedrux
        Phaedrux Moderator @baesjerker last edited by

        @baesjerker said in Ender 3 Pro configuration:

        Thanks for that one @Phaedrux. It actually removed a lot of the stringing issue. Now it’s so much better.

        Glad that's improved it for you. That Cura profile is based on the Cura profile that comes with Cura as well as some modifications to make it closer to the profile used for the demo gcode files that come on the Ender SD card as well as some tweaks of my own. It's produced some very clean prints for me.

        Did you also make those changes to the config file speed settings?

        Z-Bot CoreXY Build | Thingiverse Profile

        baesjerker 1 Reply Last reply Reply Quote 0
        • baesjerker
          baesjerker @NoSkillzEngineer last edited by

          @noskillzengineer great. Thank you for explaining everything in more detail. I will try to up the non printing speed and check the results. Looking forward to check out your settings.

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          • baesjerker
            baesjerker @Phaedrux last edited by

            @phaedrux i printed out a hero me fan duct yesterday and there was almost no stringing.
            So it helped a lot. No, I didn’t change the speed in the config. What do I change there? Match the Cura profile? Thanks.

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            • dc42
              dc42 administrators @baesjerker last edited by

              @baesjerker said in Ender 3 Pro configuration:

              With those settings the extruder motor is skipping and the black filament i am using now seems to be really thin looking.

              What extruder motor does your printer use, and what extruder motor current have you set in M906? From another post I see that your extruder steps/mm is very low, indicating that you have an ungeared extruder. With that type of extruders, it's usually necessary to run the motor close to its rated current to get enough torque when printing PLA. OTOH if you run it too high, the heat from the motor reaches the filament and softens it, which can also lead to problems.

              Duet WiFi hardware designer and firmware engineer
              Please do not ask me for Duet support via PM or email, use the forum
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              baesjerker 1 Reply Last reply Reply Quote 0
              • baesjerker
                baesjerker @dc42 last edited by

                @dc42 said in Ender 3 Pro configuration:

                @baesjerker said in Ender 3 Pro configuration:

                With those settings the extruder motor is skipping and the black filament i am using now seems to be really thin looking.

                What extruder motor does your printer use, and what extruder motor current have you set in M906? From another post I see that your extruder steps/mm is very low, indicating that you have an ungeared extruder. With that type of extruders, it's usually necessary to run the motor close to its rated current to get enough torque when printing PLA. OTOH if you run it too high, the heat from the motor reaches the filament and softens it, which can also lead to problems.

                It’s the stock Ender 3 Pro extruder motor. I believe it’s called “Creality 3D 42-40”. It has a shaft with a adjustable gear. Current is set to 900 and steps/mm is now around 103. I tried to calibrate it and ended up with that number.

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                • Veti
                  Veti last edited by

                  https://gist.github.com/knoopx/e6c40a009e796203b93a75a3ed6a5ab8

                  its a 1A motor.

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