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    Issues with print quality, wall surface rough.

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    Tuning and tweaking
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    • Phaedruxundefined
      Phaedrux Moderator @CorvoDewittV2
      last edited by

      @CorvoDewittV2 said in Issues with print quality, wall surface rough.:

      @Phaedrux how many walls? Can I still do 20mm high?

      I'd do full height. Something large that's more representative of an actual object you'd print. I'd also try a vase close to the max of your height to see if the extrusion pattern stays the same.

      Z-Bot CoreXY Build | Thingiverse Profile

      CorvoDewittV2undefined 1 Reply Last reply Reply Quote 1
      • Corexyundefined
        Corexy
        last edited by Corexy

        @Phaedrux

        Vase mode is a good idea, I should have thought of that....I rarely print vases lol.

        @CorvoDewittV2

        Did you try those 3 steps for getting it into the ballpark?

        I agree that messing with the XY steps shouldn't be necessary, and really should be avoided IMHO.

        My extra parts for my v-core were sitting on the table when I got home. I really need to make a start now, out of excuses.

        @mwolter

        Yes those fans are too high when you look at them from that angle.

        That's a nice looking duct! May I enlist some of your skills when I've got my BMG/Mosquito in place on my v-core?

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        • Corexyundefined
          Corexy @CorvoDewittV2
          last edited by Corexy

          @CorvoDewittV2 said in Issues with print quality, wall surface rough.:

          @Phaedrux Not a good look. 75% fan, 200C 30mm/s 90%flow
          1445c2c8-f483-4c5f-8026-ff6a5812369a-image.png

          Geez that's awful.

          It still looks like over extrusion, but combined with a Z binding issue...you can see the regular intervals up the walls that suggest a Z screw wobble.

          But it's not just that, there's a slicer/config setting issue of some sort going on there.

          Once you've done those 3 steps, you could try just a large tall cylinder in vase mode with zero infill and single wall thickness, something like 100 diameter by the full 300 tall.

          That would be worth a look.

          1 Reply Last reply Reply Quote 0
          • DIY-O-Sphereundefined
            DIY-O-Sphere
            last edited by DIY-O-Sphere

            @CorvoDewittV2
            Can you please provide information for the thermistors you are using?
            Your config is set up for the generic ones, which is uncommon.

            (UTC+1)

            Corexyundefined 1 Reply Last reply Reply Quote 1
            • Corexyundefined
              Corexy @DIY-O-Sphere
              last edited by

              @DIY-O-Sphere said in Issues with print quality, wall surface rough.:

              @CorvoDewittV2
              Can you please provide information for the termistors you are using?
              Your config is set up for the generic ones, which is uncommon.

              There we go...

              That could very well explain why it looks like it's been printed at way too hot a temperature.

              CorvoDewittV2undefined 1 Reply Last reply Reply Quote 0
              • CorvoDewittV2undefined
                CorvoDewittV2 @Corexy
                last edited by

                @Corexy I have not gotten to those steps, I was still messing with flow just by different cubes.

                @DIY-O-Sphere I am using a genuine e3d cartridge style thermistor and the one that comes with the keenovo heater pad.... What do they need to be set to?

                Corexyundefined 1 Reply Last reply Reply Quote 0
                • CorvoDewittV2undefined
                  CorvoDewittV2 @Phaedrux
                  last edited by CorvoDewittV2

                  @Phaedrux I had already started the wide cube when you messaged me, I'm going to do a tall vase now:
                  Please note! The image is not stretched, the cube is 100x100x30
                  IMG_20200709_054846.jpg
                  IMG_20200709_054905.jpg

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                  • Corexyundefined
                    Corexy @CorvoDewittV2
                    last edited by

                    @CorvoDewittV2 said in Issues with print quality, wall surface rough.:

                    @Corexy I have not gotten to those steps, I was still messing with flow just by different cubes.

                    @DIY-O-Sphere I am using a genuine e3d cartridge style thermistor and the one that comes with the keenovo heater pad.... What do they need to be set to?

                    That big cube looks a bit better.

                    I still recommend you try those steps before messing around with anymore prints, as it will put you in the right ballpark setting wise.

                    Might be best you look at the thermistor settings DIY suggested first though, as that would certainly play havoc if you've got them wrong.

                    CorvoDewittV2undefined 1 Reply Last reply Reply Quote 0
                    • CorvoDewittV2undefined
                      CorvoDewittV2 @Corexy
                      last edited by

                      @Corexy okay I'll take a look at the settings for the thermistor. I will feel real dumb if that fixes it

                      Corexyundefined 1 Reply Last reply Reply Quote 0
                      • Corexyundefined
                        Corexy @CorvoDewittV2
                        last edited by Corexy

                        @CorvoDewittV2 said in Issues with print quality, wall surface rough.:

                        @Corexy okay I'll take a look at the settings for the thermistor. I will feel real dumb if that fixes it

                        I wouldn't feel dumb, it's all a learning experience. It's little things that make big problems, and it's not definitely that yet anyway (but it's certainly a contender).

                        My name is in the Oxford dictionary in the section marked "dumb at programming a Duet wifi", yet I still knock out a passable print time to time.

                        That's the reason I was pressing you about those steps. If your extrusion temp ended up at 90 degC or something stupid like that, you'd instantly be homing in on that problem.

                        The only shame will be the money spent on parts, but pain is a teacher they say.

                        Once you check those thermistor settings you should run the heater test function jigger (for want of a better description) on both the bed and hot end, then....

                        ...try those 3 steps

                        CorvoDewittV2undefined 1 Reply Last reply Reply Quote 0
                        • mendenmhundefined
                          mendenmh
                          last edited by

                          @Corexy said in Issues with print quality, wall surface rough.:

                          blatantly blowing on the heat block, and you've got a silicone cover on it as well. Sure you could certainly have a better fan shroud, but I don't think it's a major cause of any problems. I'd stick with the 40x10 blowers myself, but I tend to use as little fan as possible in my prints. I generally go with 10-20% fan on materials like PLA/PETG, and with the exception of bridging never go over 60%.
                          It would be nice to print some sort of U

                          I notice from the pictures you are printing on a magnetic print surface. Is it possible that the surface is not holding down tightly, and the print is wobbling? This really, really looks like simple mechanical wobble somewhere. If the temperature regulation isn't very good, especially, the plate could be flexing vertically (popping up and down), resulting in very uneven spacing of the 'z' steps and the blobby layers.

                          CorvoDewittV2undefined 1 Reply Last reply Reply Quote 0
                          • CorvoDewittV2undefined
                            CorvoDewittV2 @Corexy
                            last edited by

                            @Corexy So I set the e3d thermistor up and now its reading -273.1C....
                            M308 S1 P"temp2" Y"thermistor" T100000 B4725 C7.06e-8 ; configure sensor 1 as thermistor on pin temp2

                            jay_s_ukundefined DIY-O-Sphereundefined Corexyundefined 3 Replies Last reply Reply Quote 0
                            • jay_s_ukundefined
                              jay_s_uk @CorvoDewittV2
                              last edited by

                              @CorvoDewittV2 why have you gone from using temp1 to temp2?

                              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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                              • DIY-O-Sphereundefined
                                DIY-O-Sphere @CorvoDewittV2
                                last edited by

                                @CorvoDewittV2
                                You have used temp1 and temp0 in the old config

                                (UTC+1)

                                CorvoDewittV2undefined 2 Replies Last reply Reply Quote 0
                                • CorvoDewittV2undefined
                                  CorvoDewittV2 @DIY-O-Sphere
                                  last edited by

                                  @DIY-O-Sphere fuck

                                  1 Reply Last reply Reply Quote 0
                                  • CorvoDewittV2undefined
                                    CorvoDewittV2 @DIY-O-Sphere
                                    last edited by CorvoDewittV2

                                    @DIY-O-Sphere I have to go to work so I don't have time to PID tune so I'll have to mess with this more when I get home thank you! But yeah changing it temp1 fixed it

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                                    • CorvoDewittV2undefined
                                      CorvoDewittV2 @mendenmh
                                      last edited by

                                      @mendenmh WhamBam is pretty good, I can not move the bed when its on there. Not a bad idea to check though, I have a mirror I can try.

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                                      • Corexyundefined
                                        Corexy @CorvoDewittV2
                                        last edited by

                                        @CorvoDewittV2 said in Issues with print quality, wall surface rough.:

                                        @Corexy So I set the e3d thermistor up and now its reading -273.1C....
                                        M308 S1 P"temp2" Y"thermistor" T100000 B4725 C7.06e-8 ; configure sensor 1 as thermistor on pin temp2

                                        Not my area of expertise.

                                        You need @DIY-O-Sphere or @Phaedrux for that.

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                                        • CorvoDewittV2undefined
                                          CorvoDewittV2 @Corexy
                                          last edited by

                                          @Corexy @DIY-O-Sphere got it sorted for me. Im not sure how but I changed temp1 -> temp2. I had to go to work (I only work to feed my 3d printing habit 😁 😁 ) so when I get home I will re-run the PID magic tunes and try printing again, then try the stuff you suggested. I am considering ordering new POM nuts, they felt a little loose to me. I am not sure if it will translate into video but if it does I will upload a video of the wiggle tonight, for your viewing pleasure.

                                          Corexyundefined 1 Reply Last reply Reply Quote 0
                                          • Corexyundefined
                                            Corexy @CorvoDewittV2
                                            last edited by

                                            @CorvoDewittV2 said in Issues with print quality, wall surface rough.:

                                            @Corexy @DIY-O-Sphere got it sorted for me. Im not sure how but I changed temp1 -> temp2. I had to go to work (I only work to feed my 3d printing habit 😁 😁 ) so when I get home I will re-run the PID magic tunes and try printing again, then try the stuff you suggested. I am considering ordering new POM nuts, they felt a little loose to me. I am not sure if it will translate into video but if it does I will upload a video of the wiggle tonight, for your viewing pleasure.

                                            Don't change the nuts yet is my recommendation.

                                            Was there any temp reading difference with the new setting?

                                            Why not just run your PIDs, do those 3 steps then print the large cylinder in vase mode?

                                            Costs nothing, and starts at the beginning.

                                            Flipping back and forth will get you nowhere in printing.

                                            CorvoDewittV2undefined 1 Reply Last reply Reply Quote 0
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