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    Issues after prime

    Scheduled Pinned Locked Moved Solved
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    • Heartleander81undefined
      Heartleander81 @Phaedrux
      last edited by Heartleander81

      @phaedrux
      Good point.
      But I did that last week on the basis of maintenance when the error was pending.
      This is still quite harmless for the design of the printer.
      Others drive the printer with 6-8k acceleration and 300-400mm / s movement

      The pulleyes All New.

      I have test with M906 X1350 and Y1350.
      My stepper have 1,7A Max.
      And 60mm high.

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

        Can you enter your motor values and settings into this EMF calculator and see if maybe we're in the range where back emf becomes an issue.

        https://www.reprapfirmware.org/emf.html

        Z-Bot CoreXY Build | Thingiverse Profile

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

          @phaedrux Ok.

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

            @phaedrux Screenshot_20210818-192125_Samsung Internet.jpg

            20210818_191445.jpg

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

              Oh I have Look on the wrong stepper. X and Y can 2.1A

              1 Reply Last reply Reply Quote 0
              • dc42undefined
                dc42 administrators @Heartleander81
                last edited by dc42

                @heartleander81 said in Issues after prime:

                when I delete the first retract G1 E-0.600 F1200 the error is gone. But this is created by the slicer and I cannot prevent this.

                That sounds similar to the reports from two other users: an axis move right after an extruder move on a tool boards shows the problem. I don't want you to remove the retractions, I want you to help me pin down the problem. by developing the simplest possible test case that causes the problem.

                Did you try the test file I posted earlier?

                Duet WiFi hardware designer and firmware engineer
                Please do not ask me for Duet support via PM or email, use the forum
                http://www.escher3d.com, https://miscsolutions.wordpress.com

                Heartleander81undefined 1 Reply Last reply Reply Quote 0
                • Heartleander81undefined
                  Heartleander81 @dc42
                  last edited by Heartleander81

                  @dc42 oh. No not. When my child sleep I can test it. In 15-30 min I give a feedback

                  should I use the g-code in the same way or turn the temperature on again and turn off cold extrusion?

                  dc42undefined 2 Replies Last reply Reply Quote 0
                  • dc42undefined
                    dc42 administrators @Heartleander81
                    last edited by

                    @heartleander81 thanks. What I am looking for is the simplest possible test case. The ingredients that appear to cause it are:

                    • A tool change;
                    • A short extruder-only movement (typically a retraction), where the extruder is connected to a tool board;
                    • Then under some conditions, the following axis movement happens incorrectly.

                    The length of the extruder-only movement affects whether the problem occurs or not. I don't know whether the tool change is a necessary condition for the problem to happen, or if it is, whether the contents of the tool change files are relevant.

                    Duet WiFi hardware designer and firmware engineer
                    Please do not ask me for Duet support via PM or email, use the forum
                    http://www.escher3d.com, https://miscsolutions.wordpress.com

                    Heartleander81undefined 1 Reply Last reply Reply Quote 0
                    • dc42undefined
                      dc42 administrators @Heartleander81
                      last edited by dc42

                      @heartleander81 said in Issues after prime:

                      should I use the g-code in the same way or turn the temperature on again and turn off cold extrusion?

                      You can try it with heating first if you like. If the problem occurs, try simplifying the file as much as possible until you find a very simple test case. As part of this simplification, you could copy the contents of startGcode into the test file instead of calling it with M98.

                      Related thread: https://forum.duet3d.com/topic/24553/rrf-3-3-does-not-respect-max-accel-in-first-moves-after-tc

                      Duet WiFi hardware designer and firmware engineer
                      Please do not ask me for Duet support via PM or email, use the forum
                      http://www.escher3d.com, https://miscsolutions.wordpress.com

                      Heartleander81undefined 1 Reply Last reply Reply Quote 0
                      • Heartleander81undefined
                        Heartleander81 @dc42
                        last edited by

                        @dc42 ok. I have time 😉

                        1 Reply Last reply Reply Quote 0
                        • Heartleander81undefined
                          Heartleander81 @dc42
                          last edited by

                          @dc42
                          With your code the same issuse.

                          When i comment out the line 28 ( G1 E-0.600 F1200 )
                          Run the Printer with no Problem. I have a Video when you whant

                          G90
                          M83
                          M302 P1 ;;dc
                          T-1 ;;dc
                          M106 S0
                          G4 S1 ;;dc
                          ;;M140 S50
                          ;;M190 S50
                          ;;M104 S240 T0
                          ;;M109 S240 T0
                          T0
                          M150 R255 B235 U255 P128 S60 ;LED weiß
                          G32
                          ;G29 S1 P"heightmap.csv"   ;SB
                          M83
                          G1 X5 Y5 Z30 F6000.0 
                          G1 E50 F500
                          G1 E30 F200
                          G1 Y20 F2000
                          G1 Y50 Z0.2 F3000
                          G1 Y90 E20 F300
                          G1 Y120 F1200
                          M150 R255 B235 U255 P128 S60 ;LED weiß
                          G92 E0.0
                          ; process CR3D 0.4
                          ; layer 1, Z = 0.200
                          T0
                          ;G1 E-0.6000 F1200   ;SB
                          ; feature skirt
                          ; tool H0.200 W0.440
                          G1 Z0.200 F600
                          G1 X118.950 Y122.494 F12600
                          ;G1 X19.489 Y53.567 F12600
                          ;G1 E0.6000 F1200
                          ;G1 X280.511 Y53.567 E8.9768 F1800
                          ; layer end
                          T0
                          ;;dc M98 P"endGcode"
                          
                          1 Reply Last reply Reply Quote 0
                          • Heartleander81undefined
                            Heartleander81
                            last edited by Heartleander81

                            LINE 14 and 28 is comment out. You See on the end ;SB
                            That is the Code who run without issuse

                            dc42undefined 1 Reply Last reply Reply Quote 0
                            • dc42undefined
                              dc42 administrators @Heartleander81
                              last edited by dc42

                              @heartleander81 thanks! If you reinstate line 28 and comment out the M150 lines and also the G32 line, does the problem remain?

                              Duet WiFi hardware designer and firmware engineer
                              Please do not ask me for Duet support via PM or email, use the forum
                              http://www.escher3d.com, https://miscsolutions.wordpress.com

                              Heartleander81undefined 2 Replies Last reply Reply Quote 0
                              • Heartleander81undefined
                                Heartleander81 @dc42
                                last edited by

                                @dc42 have I do. The issuse is back

                                1 Reply Last reply Reply Quote 0
                                • Heartleander81undefined
                                  Heartleander81 @dc42
                                  last edited by

                                  @dc42
                                  You said that the following axis suddenly causes problems after the extrusion? Then I think of a "misprint" that I made with the toolboard. The paragraph should not be but a plan. See the following picture

                                  20210818_201442.jpg

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

                                    ok i misunderstood something. I will gradually comment out and test each line from top to bottom.

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

                                      With line 14 have I the issuse and without is all ok

                                      G90
                                      M83
                                      M302 P1 ;;dc
                                      T-1 ;;dc
                                      M106 S0
                                      G4 S1 ;;dc
                                      ;;M140 S50
                                      ;;M190 S50
                                      ;;M104 S240 T0
                                      ;;M109 S240 T0
                                      T0
                                      M83
                                      G1 X5 Y5 Z30 F6000.0 
                                      ;G1 Y50 Z0.2 F3000 after comment out this line looks out run without issuse
                                      G1 Y90 E20 F300
                                      G1 Y120 F1200
                                      G92 E0.0
                                      ; process CR3D 0.4
                                      ; layer 1, Z = 0.200
                                      T0
                                      G1 E-0.6000 F1200   ;SB
                                      ; feature skirt
                                      ; tool H0.200 W0.440
                                      G1 Z0.200 F600
                                      G1 X118.950 Y122.494 F12600
                                      ;G1 X19.489 Y53.567 F12600
                                      ;G1 E0.6000 F1200
                                      ;G1 X280.511 Y53.567 E8.9768 F1800
                                      ; layer end
                                      T0
                                      ;;dc M98 P"endGcode"
                                      
                                      dc42undefined 1 Reply Last reply Reply Quote 0
                                      • dc42undefined
                                        dc42 administrators @Heartleander81
                                        last edited by

                                        @heartleander81 thanks again. What about lines 17 and 20: if they are commented out and line 14 reinstated, does the problem occur?

                                        Duet WiFi hardware designer and firmware engineer
                                        Please do not ask me for Duet support via PM or email, use the forum
                                        http://www.escher3d.com, https://miscsolutions.wordpress.com

                                        Heartleander81undefined 1 Reply Last reply Reply Quote 0
                                        • Heartleander81undefined
                                          Heartleander81 @dc42
                                          last edited by

                                          @dc42
                                          After I comment out Line 20 its all good

                                          dc42undefined 1 Reply Last reply Reply Quote 0
                                          • dc42undefined
                                            dc42 administrators @Heartleander81
                                            last edited by

                                            @heartleander81 thanks again!

                                            Duet WiFi hardware designer and firmware engineer
                                            Please do not ask me for Duet support via PM or email, use the forum
                                            http://www.escher3d.com, https://miscsolutions.wordpress.com

                                            Heartleander81undefined 1 Reply Last reply Reply Quote 0
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