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    Issues with pressure advance since RRF 3.4

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    • Argoundefined
      Argo @MartinNYHC
      last edited by

      @dc42

      Looks like I’m not alone with the issue anymore. Any news of an possible fix? And if possible, can we somehow assist in collecting more data (debug firmware with more logging?) for you to fix the issue?

      1 Reply Last reply Reply Quote 2
      • gloomyandyundefined
        gloomyandy @MartinNYHC
        last edited by

        @MartinNYHC That's a very useful test. If you are interested in running more tests, then trying the same print with an older version of the firmware (probably pre input shaping so 3.3) might provide some interesting input. It would also be useful to run the same test (on 3.4.3) with input shaping disabled.

        It also looks to me as if you could use a higher value for the pressure advance setting on that print (with the input shaping setting you have), did you try that (I see you have a higher setting commented out)?

        MartinNYHCundefined 1 Reply Last reply Reply Quote 0
        • MartinNYHCundefined
          MartinNYHC @gloomyandy
          last edited by

          @gloomyandy I already tried lots of different settings within the last few months but that doesn't change anything. The same applies to the RRF version - same results as @Argo starting with 3.4.

          gloomyandyundefined 1 Reply Last reply Reply Quote 1
          • gloomyandyundefined
            gloomyandy @MartinNYHC
            last edited by

            @MartinNYHC It would really help to see the following prints alongside each other. I don't think we really have good examples at the moment. Ideally using the same gcode....

            1. A print using RRF 3.3 (ideally both with and without the toolboard)
            2. A print using RRF 3.4 but with input shaping disabled (again with and without a toolboard)
            3. A print using RRF 3.4 with input shaping enabled (I think we already have these, but it would be good to confirm them with the same settings and gcode).
              Hopefully all test prints using the same filament etc.

            At the moment we have a lot of examples but I don't think we have a consistent set using exactly the same hardware and gcode. I don't think we have any hard evidence that things changed from 3.3 to 3.4.

            The current situation (as I understand it) is....
            Argo saw differences going from 3.3 to 3.4, but he also switched from a directly connected extruder to using a toolboard. When he went back to 3.3 (still using a toolboard) the problem he is seeing seemed to also show in 3.3.

            Your test posted above seems to indicate that you are seeing a problem with 3.4 and that the problem is the same both with and without a toolboard (however both prints are using input shaping, so that may have some impact on this, most people seem to think that PA needs to be changed when input shaping is in use).

            I realise that this is a lot of work, but I think you are in a really good position to test this. I've been trying to reproduce the issue, but have not been able to do so, my understanding is that DC42 has also not been able to reproduce the problems. If there is a difference between 3.3 and 3.4 then having a definitive example would really help.

            MartinNYHCundefined R4ffersundefined 2 Replies Last reply Reply Quote 0
            • Argoundefined
              Argo
              last edited by Argo

              @gloomyandy

              What I also did change was the hotend when I installed the tool board and installed RRF 3.4.
              It’s a Rapido hotend. The same one @MartinNYHC uses. I don’t know how the hotend can be the cause but I could switch back to the Mosquito as my bedslinger with RRF 3.4 also has an Mosquito and no issues.

              MartinNYHCundefined 1 Reply Last reply Reply Quote 0
              • MartinNYHCundefined
                MartinNYHC @Argo
                last edited by

                @Argo I also had this issue before I switched from a Mosquito Magnum to Rapido 😉

                Argoundefined 1 Reply Last reply Reply Quote 0
                • Argoundefined
                  Argo @MartinNYHC
                  last edited by

                  @MartinNYHC

                  Ok… then I have absolutely no clue anymore.

                  1 Reply Last reply Reply Quote 0
                  • MartinNYHCundefined
                    MartinNYHC @gloomyandy
                    last edited by

                    @gloomyandy My extruder is clogged 🤕 Will do the test prints tomorrow.

                    1 Reply Last reply Reply Quote 2
                    • R4ffersundefined
                      R4ffers @gloomyandy
                      last edited by

                      @gloomyandy I'm also using rapido hotend now, was using a dragon SF. I've just changed from SBC to standalone which hasn't altered the results.

                      Mb6hc + 3hc + 1lc on Voron V2.4, Mini 5+ exp 2+ on Vzbot 235 AWD, Duet 2 wifi on Ox CNC and Mini 5+ on Millennium Milo v1.5 mini mill.

                      1 Reply Last reply Reply Quote 0
                      • Heartleander81undefined
                        Heartleander81
                        last edited by

                        I have this corner issuse to.
                        My System

                        Duet 3 6 hc SBC
                        Duet 3 1lc
                        Rapido Hotend
                        Hextrudort Extruder ( ~ 20mm tube from extruder to hotend )

                        Test with extruder on toolboard and on the MB direkt but the corners issuse ob both connection.
                        Test with IS on and off at both connection.
                        My PA bevor the issuse was 0.035.
                        When I turned up the PA to 0.04, the wall on the corners open it.

                        Need you more Info?
                        Config.g?
                        M122?

                        I print a simple Cube with 40x40x2mm

                        Argoundefined 1 Reply Last reply Reply Quote 1
                        • Argoundefined
                          Argo @Heartleander81
                          last edited by

                          @MartinNYHC has no access to the printer at the moment so maybe @Heartleander81, could you do these tests? https://forum.duet3d.com/post/297234

                          1. A print using RRF 3.3 (ideally both with and without the toolboard)
                          2. A print using RRF 3.4 but with input shaping disabled (again with and without a toolboard)
                          3. A print using RRF 3.4 with input shaping enabled (I think we already have these, but it would be good to confirm them with the same settings and gcode).
                            Hopefully all test prints using the same filament etc.
                          1 Reply Last reply Reply Quote 0
                          • Heartleander81undefined
                            Heartleander81
                            last edited by Heartleander81

                            @Argo

                            With which file?
                            Which settings?
                            I only have PETG filament at home.

                            oh flashing back to 3.3, I don't know how that works and whether I changed something from 3.3 to 3.4 in the Config.g, I unfortunately don't know anymore either.

                            The problem with and without Toolboard is. I don't have an adapter and then have to re-solder the cable from the motor every time.

                            My tests up to now (cube 40x40x2) show that with 3.4.3 the corners are always the same. Whether with toolboard IS on or off and without toolboard with IS on or off. The corners only get smaller when I print a lot slower than 60mm/s

                            20221017_161717.jpg

                            Argoundefined 1 Reply Last reply Reply Quote 0
                            • Argoundefined
                              Argo @Heartleander81
                              last edited by

                              @Heartleander81

                              Flashing to 3.3 is the same procedure as flashing ton 3.4.
                              Just upload the files to the system folder.
                              Maybe the result will be different with RRF 3.3.
                              If not then maybe we’ll have to send our printers to Duet3D.

                              Heartleander81undefined 1 Reply Last reply Reply Quote 0
                              • Heartleander81undefined
                                Heartleander81
                                last edited by

                                I use SBC not standalone

                                Phaedruxundefined 1 Reply Last reply Reply Quote 0
                                • Phaedruxundefined
                                  Phaedrux Moderator @Heartleander81
                                  last edited by

                                  @Heartleander81 said in Issues with pressure advance since RRF 3.4:

                                  I use SBC not standalone

                                  Try this: https://github.com/DanalEstes/DuetVersions

                                  Z-Bot CoreXY Build | Thingiverse Profile

                                  Heartleander81undefined 1 Reply Last reply Reply Quote 0
                                  • Heartleander81undefined
                                    Heartleander81 @Phaedrux
                                    last edited by

                                    @Phaedrux

                                    Sorry I doun't understand what I must do.
                                    The git can I clone but what now?

                                    I think I must install ore copy files on the pi but what and who.

                                    🙈🤷‍♂️

                                    Phaedruxundefined 1 Reply Last reply Reply Quote 0
                                    • Phaedruxundefined
                                      Phaedrux Moderator @Heartleander81
                                      last edited by Phaedrux

                                      @Heartleander81
                                      I believe you can also use apt-get to retrieve a specific version.

                                      sudo apt-get install <package name>=<version>

                                      Though I haven't done that myself.

                                      Also see here: https://docs.duet3d.com/User_manual/Machine_configuration/DSF_RPi#downgrade-packages

                                      Z-Bot CoreXY Build | Thingiverse Profile

                                      Heartleander81undefined 2 Replies Last reply Reply Quote 0
                                      • Heartleander81undefined
                                        Heartleander81 @Phaedrux
                                        last edited by Heartleander81

                                        @Phaedrux sudo apt-get install duetsoftwareframework=3.3.0 doun't work

                                        1 Reply Last reply Reply Quote 0
                                        • Heartleander81undefined
                                          Heartleander81 @Phaedrux
                                          last edited by

                                          @Phaedrux ok have 3.3.0 on MB and Toolboard. Now I test with is on is off extruder on MB and the same with Toolboard

                                          1 Reply Last reply Reply Quote 0
                                          • Heartleander81undefined
                                            Heartleander81 @Argo
                                            last edited by Heartleander81

                                            @Argo

                                            3-3-0Toolboard.jpg
                                            3.3.0 PA 0.045 Extruder onToolboard
                                            3-3-0Mainboard.jpg
                                            3.3.0 PA 0.045 Extruder on Mainboard
                                            3-4-4TooboardIS.jpg
                                            3.4.4 PA 0.045 Extruder on Toolboard with IS
                                            3-4-4Toolboard.jpg
                                            3.4.4 PA 0.045 Extruder on Toolboard without IS

                                            3.4.4 Extruder on Mainboard with IS and without IS look the same

                                            Printed clockwise.
                                            Outer walls, inner walls, bottom layer and top layer all at 200mm/s.
                                            First layer with 90mm/s .
                                            The part is 2mm high with the dimensions 40x40mm.
                                            Layer height is 0.2mm.

                                            ; Drive direktion
                                            M569 P0.1 S0 D2 H20 V2000 				; X physical drive 0.1 goes backwards
                                            M569 P0.2 S0 D2 H20 V2000 				; Y physical drive 0.2 goes backwards
                                            M569 P0.0 S1 D2 							; Z1 physical drive 0.0 goes forwards
                                            M569 P0.4 S1 D2 							; Z2 physical drive 0.4 goes forwards
                                            M569 P0.3 S1 D2							; Z3 physical drive 0.3 goes forwards
                                            M569 P0.5 S0 D2 							; (free) physical drive 0.5 goes forwards
                                            M569 P20.0 S1 D2						; E physical drive 0.0 Driver0 tool goard goes forwards
                                            
                                            ; Motor mapping and steps per mm
                                            M584 X0.1 Y0.2 Z0.0:0.4:0.3 E20.0			; set drivers mapping
                                            M350 X16 Y16 Z16 I1						; configure microstepping 1/16 with interpolation
                                            M350 E16								; configure microstepping 1/16
                                            M92 X80.40 Y80.40 Z800.00 E705.485		; set steps per mm
                                            
                                            ; Drive currents
                                            M906 X1300 Y1300 Z950 E900 				; set motor currents (mA)
                                            M906 I80								; motor idle factor in per cent
                                            M84 S120 								; set idle timeout
                                            
                                            ; Acceleration and speed
                                            M566 X1800.00 Y1800.00 Z90.00 E3000.00 P1	; set maximum instantaneous speed changes (mm/min)
                                            M203 X30000.00 Y30000.00 Z900.00 E15000.00	; set maximum speeds (mm/min)
                                            M201 X6000.00 Y6000.00 Z100.00 E1800.00		; set accelerations (mm/s^2)
                                            M201.1 Z40.00								; Homimg smooth ACC
                                            
                                            
                                            ; Accelerometer
                                            M955 P20.0 I10 S1344 R10			; R12 Accelerometer 20:0 type LIS3DH with orientation 10 samples at 1344Hz with 10-bit resolution
                                            
                                            ; PA, IS
                                            ; At config-override.g
                                            
                                            
                                            Argoundefined 1 Reply Last reply Reply Quote 1
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