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    Stuttering while printing

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    • DjDemonD
      DjDemonD last edited by

      Large kossel, 1.20 alpha 7 fw
      Stuttering whilst printing especially small curves.

       M122
      === Diagnostics ===
      Used output buffers: 6 of 32 (10 max)
      === Platform ===
      RepRapFirmware for Duet WiFi version 1.20alpha7 running on Duet WiFi 1.0
      Board ID: 08DAM-999TL-MQ4S4-6J1FG-3S46M-TPHVY
      Static ram used: 15104
      Dynamic ram used: 97456
      Recycled dynamic ram: 2128
      Stack ram used: 1352 current, 9112 maximum
      Never used ram: 7272
      Last reset 00:40:01 ago, cause: power up
      Last software reset reason: User, spinning module GCodes, available RAM 7264 bytes (slot 4)
      Software reset code 0x0003, HFSR 0x00000000, CFSR 0x00000000, ICSR 0x00400000, BFAR 0xe000ed38, SP 0xffffffff
      Error status: 2
      Free file entries: 8
      SD card 0 detected, interface speed: 20.0MBytes/sec
      SD card longest block write time: 303.3ms
      MCU temperature: min 19.0, current 38.7, max 39.2
      Supply voltage: min 23.8, current 24.2, max 24.6, under voltage events: 0, over voltage events: 0
      Driver 0: stalled
      Driver 1: stalled
      Driver 2: stalled
      Driver 3: stalled
      Driver 4: standstill
      Date/time: 2017-09-30 10:29:54
      Slowest main loop (seconds): 0.305532; fastest: 0.000035
      === Move ===
      MaxReps: 8, StepErrors: 82, FreeDm: 180, MinFreeDm 120, MaxWait: 240725ms, Underruns: 0, 345
      Scheduled moves: 6916, completed moves: 6901
      Bed compensation in use: mesh
      Bed probe heights: 0.079 0.063 0.010 0.042 -0.001
      === Heat ===
      Bed heater = 0, chamber heater = -1
      Heater 0 is on, I-accum = 0.0
      Heater 1 is on, I-accum = 0.3
      === GCodes ===
      Segments left: 1
      Stack records: 2 allocated, 0 in use
      Movement lock held by file
      http is idle in state(s) 0
      telnet is idle in state(s) 0
      file is doing "G1 X-30.708 Y10.011 E0.29731" in state(s) 0
      serial is idle in state(s) 0
      aux is idle in state(s) 0
      daemon is idle in state(s) 0
      queue is idle in state(s) 0
      autopause is idle in state(s) 0
      Code queue is empty.
      Network state is running
      WiFi module is connected to access point 
      WiFi firmware version 1.20alpha1
      WiFi MAC address 18:fe:34:ca:f8:7e
      WiFi Vcc 3.11, reset reason Turned on by main processor
      WiFi flash size 4194304, free heap 38320
      WiFi IP address 192.168.0.109
      WiFi signal strength -36dBm
      Reconnections 0
      HTTP sessions: 2 of 8
      Socket states: 4 2 0 0 0 0 0 0
      Responder states: HTTP(1) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0)
      === Filament sensors ===
      Extruder 0 sensor: angle 0.0, no data received, no calibration data
      

      It's not receiving from the filament monitor is this an interupt causing the processor to slow down searching for filament monitor signal?

      Simon. Precision Piezo Z-Probe Technology
      www.precisionpiezo.co.uk
      PT1000 cartridge sensors NOW IN, just attach to your Duet board directly!

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      • dc42
        dc42 administrators last edited by

        There is a bug in the filament monitor support in RRF that causes stuttering if the filament monitor is flashing an error code instead of returning filament movement data. The fix will be in 1.20beta1.

        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

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        • DjDemonD
          DjDemonD last edited by

          No problems will check my filament monitor wiring.

          Thanks.

          Simon. Precision Piezo Z-Probe Technology
          www.precisionpiezo.co.uk
          PT1000 cartridge sensors NOW IN, just attach to your Duet board directly!

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

            It may not be a problem in the wiring. Look at the red LED on the filament monitor and see whether it is flashing a regular pattern. The common one is 6 flashes, which means that the magnet was not detected.

            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

            1 Reply Last reply Reply Quote 0
            • DjDemonD
              DjDemonD last edited by

              Yes that's it the assembly holding the magnet had slipped in the mount moving the magnet away from the pcb a little too far, and it wasn't reading. Spot on as always!

              Simon. Precision Piezo Z-Probe Technology
              www.precisionpiezo.co.uk
              PT1000 cartridge sensors NOW IN, just attach to your Duet board directly!

              1 Reply Last reply Reply Quote 0
              • AS-3D Druck
                AS-3D Druck last edited by

                I got the same Thing with my Printer and the Firmware 1.19.2 (2017-09-01).
                I thought before my Slicer changed something but i'am happy to know that it is "just" the Firmware.

                Is it recommended to update now to the 1.20 Beta Version?

                Best regards
                AS-3D Druck / Andre

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                • dc42
                  dc42 administrators last edited by

                  Let me reiterate, this issue only occurs if you have a Duet3D filament monitor connected and configured and it is flashing an error code.

                  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

                  1 Reply Last reply Reply Quote 0
                  • AS-3D Druck
                    AS-3D Druck last edited by

                    @dc42:

                    Let me reiterate, this issue only occurs if you have a Duet3D filament monitor connected and configured and it is flashing an error code.

                    Oh ok, but I have this stuttering even without the monitor.

                    Best regards
                    AS-3D Druck / Andre

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                    • DjDemonD
                      DjDemonD last edited by

                      Are you using grid levelling, if so you might see a slight stutter at a grid boundary, as grid levelling requires segmentation. If your bed is physically level try switching grid compensation off.

                      Simon. Precision Piezo Z-Probe Technology
                      www.precisionpiezo.co.uk
                      PT1000 cartridge sensors NOW IN, just attach to your Duet board directly!

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

                        @DjDemonD:

                        Are you using grid levelling, if so you might see a slight stutter at a grid boundary, as grid levelling requires segmentation. If your bed is physically level try switching grid compensation off.

                        If that is the issue, the remedy is to increase the allowed Z jerk in the M566 command, if your printer can take it.

                        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

                        1 Reply Last reply Reply Quote 0
                        • DjDemonD
                          DjDemonD last edited by

                          Good to know, and makes sense, I see if occasionally on my corexy machine when I'm testing underbed sensors and have z jerk set to 0.

                          Simon. Precision Piezo Z-Probe Technology
                          www.precisionpiezo.co.uk
                          PT1000 cartridge sensors NOW IN, just attach to your Duet board directly!

                          1 Reply Last reply Reply Quote 0
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