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    Issues with print quality, wall surface rough.

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    Tuning and tweaking
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    • 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

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              • 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.

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

                          @Corexy I just want to print a cube to see if the proper thermistor settings is the fix. I really did not get a chance to look at the temp too much, as I was going to be late. I did notice that at room temp the bed and hot end where about 2C apart, so I may have to take a closer look at the bed thermistor.

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                          • dgratundefined
                            dgrat
                            last edited by

                            I would try a print with a lower acceleration (~600). If it looks the same I would guess it is the extruder.

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

                              @dgrat I have tried that in the past and it made no difference, but I can check it again! I am going to need to make a list of all the tests I need to do lol.

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                              • CorvoDewittV2undefined
                                CorvoDewittV2
                                last edited by

                                @Corexy @DIY-O-Sphere @Phaedrux So here is a print with the proper thermistor settings. What do you guys think? I feel much closer...
                                fcb2ab86-71ab-4401-bbd3-7a2c99ac6269-image.png
                                d8bd6b18-5f18-4b9c-9c8e-d4f06cce5685-image.png

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                                • Phaedruxundefined
                                  Phaedrux Moderator
                                  last edited by

                                  That's looking better. Have you PID tuned the bed and hotend yet? Bang bang on the bed can cause Z banding, and oscillations at the hot end could cause similar issues with variable extrusion from varying temps too.

                                  Z-Bot CoreXY Build | Thingiverse Profile

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

                                    @Phaedrux Yep!! What do you think the line is right above the X? I think I am experiencing some z binding for sure now, would you agree?
                                    985a17aa-cd54-4a41-ae48-168a3f70f34e-image.png

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                                    • Corexyundefined
                                      Corexy
                                      last edited by

                                      Clearly that is better, so you've identified the major config error I alluded to earlier in the thermistor setting, which was identified by DIY.

                                      I can't give you any more tips to dialing it in than I have already. Step by step is the key.

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

                                        @Corexy I think there is still some Z-Binding, what do you think?

                                        Corexyundefined 1 Reply Last reply Reply Quote 0
                                        • Phaedruxundefined
                                          Phaedrux Moderator
                                          last edited by

                                          The line above the X could be due to the fact it's an unsupported overhang and is probably being treated as bridging.

                                          What does a larger vase mode print look like now?

                                          Z-Bot CoreXY Build | Thingiverse Profile

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

                                            @Phaedrux We will find out in a bit, printing a large cylinder right now. I feel like I am very close now, I sure hope so at least.

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