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    Want faster WiFi file transfer?

    Tuning and tweaking
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    • SimonRafferty
      SimonRafferty last edited by

      For whatever reason, the file transfer on mine is S-L-O-W. It starts OK then just gets slower & slower until it settles at about 50kb/s.

      As an experiment, I bought one of these: https://flashair-developers.com/en/about/overview/
      Mine is 8Gb, bought from Amazon for not much more than a standard card.

      If you edit the Config file & put in something like this:
      Leave these as they were supplied:
      VERSION=FA9CAW3AW3.00.00
      CID=02544d535730384731c2dee47900ec01
      PRODUCT=FlashAir
      VENDOR=TOSHIBA
      LOCK=1

      Change / Add everything else:
      WEBDAV=2
      UPLOAD=1
      DNSMODE=1

      ID=DuetDelta
      APPMODE=5
      APPNAME=DuetDelta
      APPSSID=###Enter your WiFi SSID###
      APPNETWORKKEY=###Enter your WiFi Password###
      DHCP_Enabled=NO

      Edit for your network settings:
      IP_Address=192.168.1.123
      Subnet_Mask=255.255.255.0
      Default_Gateway=192.168.1.1
      Preferred_DNS_Server=192.168.1.1
      Alternate_DNS_Server=192.168.1.1
      Proxy_Server_Enabled=NO

      It supports fixed IP or DHCP - and is pretty quick - I'm getting 12Mb/s typical. The printer is in my workshop, 25m from the access point. Quite a lot of devices struggle with signal strength (my phone for example) but this (and the Duet I hasten to add) work fine!

      I just have it mapped as a network drive under Windows - and save the GCode straight to it from Cura.

      Si

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      • InSanity
        InSanity last edited by

        Are you using one of those FlashAir cards to upload files instead of the Duet WiFi web interface? I use to do that before I had the Duet Wifi, it sucked.

        Duet WiFi Powered FFCP with E3D legends hotend system. BLTouch grid leveling.

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        • SimonRafferty
          SimonRafferty last edited by

          Yup - that's exactly what I'm doing. Not found any suckyness. I still use the Web interface on the Duet, just not for file transfer.

          Si

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          • InSanity
            InSanity last edited by

            The problem I ran into is that I had to have the access point (1 of 7) sitting right next to the thing or it was terrible.

            Duet WiFi Powered FFCP with E3D legends hotend system. BLTouch grid leveling.

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            • tomasf
              tomasf last edited by

              Awesome idea. I want to try this. But do they exist in Micro SD sizes? I can't seem to find any.

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              • dc42
                dc42 administrators last edited by

                If you are only getting 50kbytes/sec then something is badly wrong. The Duet WiFi normally uploads at 0.5 to 1Mbytes/sec if it has a good WiFi signal. The first thing to try is a new SD card.

                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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                • SimonRafferty
                  SimonRafferty last edited by

                  @tomasf:

                  Awesome idea. I want to try this. But do they exist in Micro SD sizes? I can't seem to find any.

                  Not that I've found - but the LCD has a standard SD socket. You need an extra lead to connect it to the Duet.
                  https://duet3d.com/wiki/Connecting_an_LCD_control_panel#Using_the_external_SD_card_socket_on_the_LCD_panel
                  Keep the lead short - much over a foot and it doesn't work. Mine (after some re-jigging) is 6" long and works pretty good.

                  David, I thought it was the SD initially - but I'm on card No 4 now and it's the same. That's why I wired up the SD socket in the PanelDue - but found it wasn't supported in the web interface for file upload due to speed considerations (ironically). The previous Micro-sd's seem to work fine in the PC speed wise.

                  When you first start uploading, it runs at 1-2Mb/s then rapidly slows down to a crawl - almost as if it's filling up a buffer then slowing when it's full?
                  Were it not for that, I would assume it's a signal strength issue - but it it can achieve fast transfer at the start, I suspect it could continue.

                  With the WiFi SD plugged in to the PanelDue it's OK.

                  Si

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                  • dc42
                    dc42 administrators last edited by

                    It would be interesting to see a Wireshark trace of a file upload on your system.

                    I presume you are running firmware 1.17d or e, and DuetWiFiServer 1.03-ch ?

                    You could use your FlashAir card in the SD socket on PanelDue if you get the ribbon cable to connect it to the Duet WiFi.

                    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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                    • tomasf
                      tomasf last edited by

                      @SimonRafferty:

                      Not that I've found - but the LCD has a standard SD socket. You need an extra lead to connect it to the Duet.

                      Ah, I see. I don't use a PanelDue, but I could probably connect a standalone SD card slot. I will definitely try this.

                      And keeping the lead short won't be a problem then 🙂

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                      • tomasf
                        tomasf last edited by

                        So I got myself a FlashAir card, but transferring files to it is horribly slow, at around 30-50 KB/s. I can transfer files between machines on my Wi-Fi network at 20+ MB/s. FlashAir often also seems to crash randomly and either stop responding to pings or stop responding to HTTP (WebDAV) requests. Oh well.

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