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My custom Cartesian

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My Duet controlled machine
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  • undefined
    deckingman @wilriker
    last edited by 26 Aug 2018, 19:29

    @wilriker said in My custom Cartesian:

    We could invent vertical layers. 🤔 😂

    I already have a technique for that - it's called printing something on it's side. 😁

    Ian
    https://somei3deas.wordpress.com/
    https://www.youtube.com/@deckingman

    1 Reply Last reply Reply Quote 1
    • undefined
      wilriker
      last edited by 5 Sept 2018, 10:27

      @OBELIKS Printed a new Benchy with walls before infill today. Will check the result in detail when I get home. Based on what I can see over the webcam the issue with very visible infill patterns seems at least to be reduced but not completely gone. But images can be misleading. Will report more details tonight.

      Manuel
      Duet 3 6HC (v0.6) with RPi 4B on a custom Cartesian
      with probably always latest firmware/DWC (incl. betas or self-compiled)
      My Tool Collection

      undefined 1 Reply Last reply 5 Sept 2018, 18:27 Reply Quote 0
      • undefined
        Phaedrux Moderator @wilriker
        last edited by 5 Sept 2018, 18:27

        @wilriker You can also modify the amount that infill crosses over into the walls.

        Z-Bot CoreXY Build | Thingiverse Profile

        undefined 1 Reply Last reply 5 Sept 2018, 18:31 Reply Quote 0
        • undefined
          wilriker @Phaedrux
          last edited by 5 Sept 2018, 18:31

          @phaedrux I know but that already is as low as (Cura's default of) 10%. Going lower doesn't make sense IMHO, does it?

          Here are the results of printing walls before infill. The backside is totally smooth now. The front side still some infill is visible and it can be felt when sliding a finger across the surface. To my surprise it is rougher though than previous ones.

          front side
          Front side. Previous result on the left, today's Benchy on the right.

          back side
          Back side. Again old Benchy to the left, new one on the right.

          Manuel
          Duet 3 6HC (v0.6) with RPi 4B on a custom Cartesian
          with probably always latest firmware/DWC (incl. betas or self-compiled)
          My Tool Collection

          1 Reply Last reply Reply Quote 0
          • undefined
            Phaedrux Moderator
            last edited by 5 Sept 2018, 18:33

            How many walls are you using? Adding another wall would be my suggestion. With a 0.4 nozzle I usually use 3.

            Z-Bot CoreXY Build | Thingiverse Profile

            undefined 1 Reply Last reply 5 Sept 2018, 18:45 Reply Quote 0
            • undefined
              wilriker @Phaedrux
              last edited by 5 Sept 2018, 18:45

              @phaedrux With most of the settings I go by Cura's defaults. In case of perimeter count it is 2. I only increase this for parts that need additional strengths e.g. to directly tap screws into the plastic.
              I still have a setting to test called "Connect infill lines". It basically is an additional inner perimeter. I guess this will solve the issue finally.

              Manuel
              Duet 3 6HC (v0.6) with RPi 4B on a custom Cartesian
              with probably always latest firmware/DWC (incl. betas or self-compiled)
              My Tool Collection

              undefined 1 Reply Last reply 5 Sept 2018, 18:51 Reply Quote 0
              • undefined
                Phaedrux Moderator @wilriker
                last edited by 5 Sept 2018, 18:51

                @wilriker Connect infill lines isn't quite the same as an extra full perimeter. It does the same thing with infill that slic3r does by default. A full perimeter is a continuous lines from start to finish, connected infill lines are sporadic.

                I use 25% for infill overlap and don't get such pronounced infill pattern. What is your infill wipe distance?

                Z-Bot CoreXY Build | Thingiverse Profile

                undefined 1 Reply Last reply 5 Sept 2018, 18:54 Reply Quote 0
                • undefined
                  wilriker @Phaedrux
                  last edited by 5 Sept 2018, 18:54

                  @phaedrux Again the default of 0.1125mm.

                  Manuel
                  Duet 3 6HC (v0.6) with RPi 4B on a custom Cartesian
                  with probably always latest firmware/DWC (incl. betas or self-compiled)
                  My Tool Collection

                  1 Reply Last reply Reply Quote 0
                  • undefined
                    Phaedrux Moderator
                    last edited by Phaedrux 9 May 2018, 19:02 5 Sept 2018, 19:01

                    2 perimeters is rather thin, especially on curved surfaces like the hull. I'd bet that adding a third perimeter will take care of it.

                    In my opinion the Cura defaults are some of the worst defaults. They are tuned for an ultimaker and don't always translate well to other styles of printer. And so many of the useful settings are hidden by default. That's not to say I dislike Cura, but it definitely takes a lot more fiddling.

                    In your case, with an I3 style printer, I think you'd probably get really excellent results using Slic3r PE and one of the prusa profiles for the MK2.

                    https://github.com/prusa3d/Slic3r-settings/tree/master/old/Slic3r settings MK2S MK2MM and MK3

                    Z-Bot CoreXY Build | Thingiverse Profile

                    undefined 1 Reply Last reply 5 Sept 2018, 19:38 Reply Quote 0
                    • undefined
                      OBELIKS
                      last edited by 5 Sept 2018, 19:36

                      Just to test, try this one:0_1536176181631_3DBenchy_0.2mm_PLA_MK2S.gcode

                      P3Steel Toolson mk2 - Duet 2 WiFi --> RatRig V-Core with Duet WiFi 1.03
                      Original Prusa i3 MK3S

                      undefined 1 Reply Last reply 5 Sept 2018, 19:39 Reply Quote 0
                      • undefined
                        wilriker @Phaedrux
                        last edited by 5 Sept 2018, 19:38

                        @phaedrux I am looking into other slicers every once in awhile but at least until now always returned to Cura. Maybe because it was what I started with.

                        I will try to slice and print a Benchy also with Slic3r and maybe also ideaMaker. Will see. I will just create an army of Benchies I can use to conquer the world. 😁

                        Manuel
                        Duet 3 6HC (v0.6) with RPi 4B on a custom Cartesian
                        with probably always latest firmware/DWC (incl. betas or self-compiled)
                        My Tool Collection

                        1 Reply Last reply Reply Quote 0
                        • undefined
                          wilriker @OBELIKS
                          last edited by 5 Sept 2018, 19:39

                          @obeliks Is it sliced with (0, 0) at bed center?

                          Manuel
                          Duet 3 6HC (v0.6) with RPi 4B on a custom Cartesian
                          with probably always latest firmware/DWC (incl. betas or self-compiled)
                          My Tool Collection

                          1 Reply Last reply Reply Quote 0
                          • undefined
                            OBELIKS
                            last edited by 5 Sept 2018, 20:01

                            You have it set at center now?
                            It's at 0,0

                            P3Steel Toolson mk2 - Duet 2 WiFi --> RatRig V-Core with Duet WiFi 1.03
                            Original Prusa i3 MK3S

                            undefined 1 Reply Last reply 5 Sept 2018, 20:10 Reply Quote 0
                            • undefined
                              wilriker @OBELIKS
                              last edited by wilriker 9 May 2018, 20:13 5 Sept 2018, 20:10

                              @obeliks Yes, I changed it with PA tuning. 😉

                              I looked into the GCODE with an editor and a lot of movements are outside my printable area. So I guess this was sliced with (0, 0) at front left.

                              Also I doubt that my motors could handle the speeds given in there. 144mm/s is not possible - while proof-reading this sentence I just thought "actually I never tried but only used EMF Calculator values to set the limits". Usually I wouldn't care as it is capped by my settings but these are overwritten at the start of the file. 😂
                              I won't print this before Friday anyway as tomorrow is something else already on the list. So enough time to setup Slic3r and slice it myself.

                              Also it does not use FW retract and the retractions in there are way too short for my MK8.

                              Manuel
                              Duet 3 6HC (v0.6) with RPi 4B on a custom Cartesian
                              with probably always latest firmware/DWC (incl. betas or self-compiled)
                              My Tool Collection

                              1 Reply Last reply Reply Quote 0
                              • undefined
                                OBELIKS
                                last edited by 5 Sept 2018, 21:14

                                I recommend you start with MK2 profile and work from that.
                                Even if you just change the dimensions of print volume and remove the acceleration and other things it should work.

                                P3Steel Toolson mk2 - Duet 2 WiFi --> RatRig V-Core with Duet WiFi 1.03
                                Original Prusa i3 MK3S

                                undefined 1 Reply Last reply 6 Sept 2018, 08:36 Reply Quote 0
                                • undefined
                                  wilriker @OBELIKS
                                  last edited by 6 Sept 2018, 08:36

                                  @obeliks Thanks. Currently fighting through all of the options. 🙂 ⚔

                                  Manuel
                                  Duet 3 6HC (v0.6) with RPi 4B on a custom Cartesian
                                  with probably always latest firmware/DWC (incl. betas or self-compiled)
                                  My Tool Collection

                                  1 Reply Last reply Reply Quote 0
                                  • undefined
                                    wilriker
                                    last edited by wilriker 9 Jun 2018, 14:20 6 Sept 2018, 14:19

                                    OK, some interesting discoveries with Slic3r PE so far.

                                    1. I started with MK2 profile but ditched it and started with a completely fresh profile based on a custom printer. Also I left nearly all of the settings at their defaults as this will compare better to how I use Cura
                                    2. The Gcode file for the Benchy is considerably smaller, i.e. nearly 40% smaller
                                    3. It uses about 70cm more filament for the Benchy than Cura - this is probably due to larger line width and 3 perimeters
                                    4. With all speeds set to default (except travel speed that I reduced to match my printers current set limit) it will take 1:46h compared to 1:28h when sliced with Cura (both values taken from Duet simulation result)
                                    5. Slic3r said it would take 1:25h but I have not found where to set maximum speeds for axes, accelerations and jerk values. It can be entered in the advanced acceleration control fields if they are enabled by using a Prusa profile but not for custom profiles. But I don't want it to control the acceleration but only take it into account when calculating print time. Before the "Printer Settings" plugin existed these values had to be entered in configuration files with an external editor. Is there something similar for Slic3r possible? Just found it right after posting here.
                                    6. Modifier meshes are a bit more hidden than in Cura but have the nice feature of adding generic shapes (cubes, cylinders, etc.) where I had to create those in advance for Cura
                                    7. I like that Slic3r has Gyroid infill
                                    8. I don't like the UI - it looks like from the 90s 😂

                                    Manuel
                                    Duet 3 6HC (v0.6) with RPi 4B on a custom Cartesian
                                    with probably always latest firmware/DWC (incl. betas or self-compiled)
                                    My Tool Collection

                                    1 Reply Last reply Reply Quote 0
                                    • whosrdaddyundefined
                                      whosrdaddy
                                      last edited by 6 Sept 2018, 14:33

                                      @wilriker said in My custom Cartesian:

                                      I don't like the UI - it looks like from the 90s

                                      But at least it's fast! 😸 😸

                                      undefined 1 Reply Last reply 6 Sept 2018, 14:34 Reply Quote 0
                                      • undefined
                                        wilriker @whosrdaddy
                                        last edited by 6 Sept 2018, 14:34

                                        @whosrdaddy That's right.

                                        OK, now I found where to set the values for speed, accel, jerk etc. but the default values contain two values and I cannot find which one stands for what. Any input on this, anyone?

                                        Manuel
                                        Duet 3 6HC (v0.6) with RPi 4B on a custom Cartesian
                                        with probably always latest firmware/DWC (incl. betas or self-compiled)
                                        My Tool Collection

                                        undefined 1 Reply Last reply 6 Sept 2018, 14:41 Reply Quote 0
                                        • whosrdaddyundefined
                                          whosrdaddy
                                          last edited by 6 Sept 2018, 14:37

                                          what do you mean with 2 values?

                                          I have these for my i3 clone:

                                          alt text

                                          undefined 1 Reply Last reply 6 Sept 2018, 14:42 Reply Quote 0
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