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    Very slow printing Duet Wifi on Am8

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    • Phaedruxundefined
      Phaedrux Moderator
      last edited by

      Do you happen to be using mesh grid compensation? Your Z jerk is quite low (only 0.2mm/s) and that could be limiting the speed of XY moves as it has to slowly adjust the height of Z. Try increasing it to 60 (1mm/s) and see if it improves.

      Can you run an M122 and post the results?

      Z-Bot CoreXY Build | Thingiverse Profile

      deckingmanundefined 1 Reply Last reply Reply Quote 1
      • deckingmanundefined
        deckingman @Phaedrux
        last edited by

        @phaedrux Good catch (about the mesh compensation and slow Z speed).

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

        1 Reply Last reply Reply Quote 0
        • ludodgundefined
          ludodg
          last edited by

          Hello.
          Thx for looking into this with me.
          Mesh compensation? Again, some studying to do, I guess 🙂

          as requested:

          M122
          === Diagnostics ===
          Used output buffers: 3 of 32 (6 max)
          === Platform ===
          RepRapFirmware for Duet 2 WiFi/Ethernet version 1.21 running on Duet WiFi 1.02 or later
          Board ID: 08DGM-956GU-DJMSN-6J9F8-3S06S-KAQZG
          Static ram used: 16152
          Dynamic ram used: 100584
          Recycled dynamic ram: 2048
          Stack ram used: 1224 current, 6464 maximum
          Never used ram: 5824
          Last reset 01:18:40 ago, cause: reset button or watchdog
          Last software reset at 2018-07-28 00:05, reason: User, spinning module GCodes, available RAM 5672 bytes (slot 2)
          Software reset code 0x0003 HFSR 0x00000000, CFSR 0x00000000, ICSR 0x0041f000, BFAR 0xe000ed38, SP 0xffffffff
          Error status: 0
          Free file entries: 9
          SD card 0 detected, interface speed: 20.0MBytes/sec
          SD card longest block write time: 0.0ms
          MCU temperature: min 40.0, current 45.5, max 45.8
          Supply voltage: min 12.0, current 12.5, max 12.8, under voltage events: 0, over voltage events: 0
          Driver 0: ok, SG min/max 0/616
          Driver 1: ok, SG min/max 0/487
          Driver 2: standstill, SG min/max not available
          Driver 3: ok, SG min/max not available
          Driver 4: standstill, SG min/max not available
          Date/time: 1970-01-01 00:00:00
          Slowest main loop (seconds): 0.042753; fastest: 0.000046
          === Move ===
          MaxReps: 3, StepErrors: 0, LaErrors: 0, FreeDm: 174, MinFreeDm 150, MaxWait: 436051ms, Underruns: 0, 0
          Scheduled moves: 33946, completed moves: 33916
          Bed compensation in use: none
          Bed probe heights: 0.000 0.000 0.000 0.000 0.000
          === Heat ===
          Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1
          Heater 0 is on, I-accum = 0.0
          Heater 1 is on, I-accum = 0.6
          === GCodes ===
          Segments left: 1
          Stack records: 1 allocated, 0 in use
          Movement lock held by null
          http is idle in state(s) 0
          telnet is idle in state(s) 0
          file is doing "G0 X89.372 Y114.372" 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 ===
          Responder states: HTTP(1) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0) Telnet(0)
          HTTP sessions: 1 of 8

          • WiFi -
            Network state is running
            WiFi module is connected to access point
            Failed messages: pending 0, notready 0, noresp 0
            WiFi firmware version 1.21RC4(08b3)
            WiFi MAC address 60:01:94:73:5b:e0
            WiFi Vcc 3.34, reset reason Turned on by main processor
            WiFi flash size 4194304, free heap 15976
            WiFi IP address 192.168.0.175
            WiFi signal strength -62dBm, reconnections 0, sleep mode modem
            Socket states: 2 0 0 0 0 0 0 0
            === Expansion ===
          1 Reply Last reply Reply Quote 0
          • ludodgundefined
            ludodg
            last edited by

            I guess I'm not running any grid compensation as I do not have a bed-level-sensor (yet)

            Might be something with my slicer ... (Slic3r Prusa Edition). The probleem seems less when slicing with cura... But that would very weird.

            deckingmanundefined 1 Reply Last reply Reply Quote 0
            • ludodgundefined
              ludodg
              last edited by

              @phaedrux said in Very slow printing Duet Wifi on Am8:

              Z jerk is quite low (only 0.2mm/s)

              Can you explain to me where you read this value?
              Do you mean Acceleration? So "M201 Z200"? Changing this to a higher value?

              Or is it about M566?

              Thx!

              deckingmanundefined 1 Reply Last reply Reply Quote 0
              • deckingmanundefined
                deckingman @ludodg
                last edited by

                @ludodg said in Very slow printing Duet Wifi on Am8:
                ................

                Might be something with my slicer ... (Slic3r Prusa Edition). The probleem seems less when slicing with cura... But that would very weird.

                Not really. There are all sorts of speed settings in each slicer and each one will only do what you tell it to. Did you check to see if moves via the web console are at the correct speed? If so, then the problem is likely to be the speeds that were used to slice the model. In Slic3r, look in the "Print Settings" tab, then under "Speed". What are the various speeds set too?

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

                ludodgundefined 1 Reply Last reply Reply Quote 0
                • deckingmanundefined
                  deckingman @ludodg
                  last edited by

                  @ludodg said in Very slow printing Duet Wifi on Am8:

                  @phaedrux said in Very slow printing Duet Wifi on Am8:

                  Z jerk is quite low (only 0.2mm/s)

                  Can you explain to me where you read this value?
                  Do you mean Acceleration? So "M201 Z200"? Changing this to a higher value?

                  Or is it about M566?

                  Thx!

                  He means instantaneous speed change. But as you aren't using any form of flatness compensation, the Z axis won't be moving so don't worry about - that's not the reason for your problem.

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

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

                    You could post a gcode file that has been sliced with Slic3r and we could see all of the settings slic3r has used since it saves a copy of all it's settings at the end of every file.

                    Z-Bot CoreXY Build | Thingiverse Profile

                    1 Reply Last reply Reply Quote 0
                    • ludodgundefined
                      ludodg @deckingman
                      last edited by

                      @deckingman
                      Indeed, moving via de webconsole seems to function ok. Homing is happening at normal speed.

                      Print Speed settings:
                      I'll check those, ... but it now uses the standard settings that came with the latest firm- and software :s

                      It has to be SlicerPE as the AM8 now prints Ok when using Cura for slicing.

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

                        @ludodg standard settings for which firmware and software?

                        Z-Bot CoreXY Build | Thingiverse Profile

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