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    M500 wipes config-override.g while saving settings

    Tuning and tweaking
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    • gnydick
      gnydick last edited by

      If the point of that file is to be able to override config.g with your own changes, it kinda sucks that after heater tuning, I used M500 and it erased all of my changes, and now I don't know what the hell they were 😞

      wilriker 1 Reply Last reply Reply Quote 0
      • wilriker
        wilriker @gnydick last edited by

        @gnydick Unfortunately, the point of that file was explicitly not to be user-edited. The second line in this file even says it:

        ; This is a system-generated file - do not edit
        

        Though, I am sorry that you lost your configuration. That is really annoying when this happens.


        To got a bit more into detail: M500 does usually save values to the EEPROM but the Duet does not have one. So this alternative solution using a defined file with the name config-override.g was introduced.

        Manuel
        Duet 3 6HC (v0.6) with RPi 4B on a custom Cartesian
        with probably always latest firmware/DWC (incl. betas or self-compiled)
        My Tool Collection

        gnydick 1 Reply Last reply Reply Quote 0
        • deckingman
          deckingman last edited by

          IMO, the very best way to manage configuration setting is create a folder on a PC or laptop and put all the configuration files in there. Then make any changes to those files and upload them to the SD card, and always keep backups of that folder. SD cards aren't the most reliable media to store critical files.

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

          1 Reply Last reply Reply Quote 0
          • gnydick
            gnydick @wilriker last edited by

            @wilriker I hear ya. FWIW, in my field, tech, override files are specifically intended to be where you put your settings so you can leave the stock settings as reference.

            Phaedrux dragonn 2 Replies Last reply Reply Quote 0
            • Phaedrux
              Phaedrux Moderator @gnydick last edited by

              @gnydick said in M500 wipes config-override.g while saving settings:

              in my field

              In your field is it advisable to read and follow the directions at the top of a file saying not to edit it? 😉

              Z-Bot CoreXY Build | Thingiverse Profile

              gnydick 1 Reply Last reply Reply Quote 1
              • dragonn
                dragonn @gnydick last edited by

                @gnydick at the end of config.g, just put a comment:

                ;my custom settings
                

                This is how all users do it and this is how it should work. config-override.g Is only for saving M500 settings and should not be edited.

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

                  Another solution that comes closer to what you wanted to do is to add

                  M98 Pcustom-config.g
                  

                  at the end of your config.g and add all your overrides to /sys/custom-config.g (or any other name that suits you and is not config-override.g). This file will not be touched by RRF and gives you the same workflow you are used to.

                  Manuel
                  Duet 3 6HC (v0.6) with RPi 4B on a custom Cartesian
                  with probably always latest firmware/DWC (incl. betas or self-compiled)
                  My Tool Collection

                  gnydick 1 Reply Last reply Reply Quote 0
                  • gnydick
                    gnydick @wilriker last edited by

                    @wilriker very true 😉

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

                      @phaedrux yeah, but that's only there AFTER it gets generated 😉

                      Phaedrux T3P3Tony 2 Replies Last reply Reply Quote 1
                      • Phaedrux
                        Phaedrux Moderator @gnydick last edited by

                        @gnydick hmmm, fair enough.

                        Z-Bot CoreXY Build | Thingiverse Profile

                        1 Reply Last reply Reply Quote 0
                        • T3P3Tony
                          T3P3Tony administrators @gnydick last edited by

                          @gnydick yeah we should add a config-override.g to the stock build with nothing but the warning in it.

                          More generally I just edit config.g directly - there is nothing special about the stock settings - most of the time theya re there just for our in house testing and don't really relate to a real printer.

                          If you have used the RepRapFirmware configurator to generate your start config then just save that output as your start state if you like.

                          www.duet3d.com

                          gnydick 1 Reply Last reply Reply Quote 0
                          • gnydick
                            gnydick @T3P3Tony last edited by

                            @t3p3tony yeah, but I think it's just good to know that there's probably an assumption that when you save your settings, you're not going to lose others. Maybe the convention should be changed so instead of config-override.g it's generated-do-not-edit-changes-will-be-lost.g 😄

                            deckingman 1 Reply Last reply Reply Quote 0
                            • DocTrucker
                              DocTrucker last edited by

                              Why not have a feature for the autotune data to be written back into the config file?

                              Running 3 P3Steel with Duet 2. Duet 3 on the shelf looking for a suitable machine. One first generation Duet in a Logo/Turtle style robot!

                              deckingman wilriker 2 Replies Last reply Reply Quote 0
                              • deckingman
                                deckingman @gnydick last edited by

                                @gnydick Or better still, just don't use config-override.g. ☺

                                Seriously, the only purpose it serves is to save people the effort of copying and pasting the result of heater tuning into config.g. It serves no other purpose.

                                What happens when you turn the printer on is that the config.g commands are read and acted on in sequence. Then if a config-override file is present, the commands in that file will be read and acted on in sequence. And as the name suggests, they then override earlier commands that are in config.g. Sooner or later it will bite you in the a**e because you'll want to edit something in config. g and wonder why your changes are having no effect (because they are being overiden elsewhere).

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

                                wilriker 1 Reply Last reply Reply Quote 0
                                • deckingman
                                  deckingman @DocTrucker last edited by

                                  @doctrucker said in M500 wipes config-override.g while saving settings:

                                  Why not have a feature for the autotune data to be written back into the config file?

                                  There is Wes. It's called copy and paste ☺

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

                                  1 Reply Last reply Reply Quote 0
                                  • wilriker
                                    wilriker @DocTrucker last edited by

                                    @doctrucker said in M500 wipes config-override.g while saving settings:

                                    Why not have a feature for the autotune data to be written back into the config file?

                                    RRF does not really edit files ever. It writes them new. And in case anything is going wrong while writing config.g... I guess you know where this is heading.

                                    Manuel
                                    Duet 3 6HC (v0.6) with RPi 4B on a custom Cartesian
                                    with probably always latest firmware/DWC (incl. betas or self-compiled)
                                    My Tool Collection

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

                                      @deckingman said in M500 wipes config-override.g while saving settings:

                                      Seriously, the only purpose it serves is to save people the effort of copying and pasting the result of heater tuning into config.g. It serves no other purpose.

                                      Sorry Ian, I have to be nitpicking here. 😉 It can also contain tool offsets, Z trigger heights and Workplace Coordinate System offsets. But for most users it won't.

                                      Oh and (primarily) for Deltas it also contains the measured axes lengths.

                                      But you are right in that all of these could also be put directly back into config.g.

                                      Manuel
                                      Duet 3 6HC (v0.6) with RPi 4B on a custom Cartesian
                                      with probably always latest firmware/DWC (incl. betas or self-compiled)
                                      My Tool Collection

                                      gnydick deckingman 2 Replies Last reply Reply Quote 0
                                      • Phaedrux
                                        Phaedrux Moderator last edited by

                                        It's very useful for the system to have the ability to write values to somewhere. Measuring offsets and things like that to use in automation macros will become very helpful when conditional gcode becomes available.

                                        While it's true config-override can cause some headaches it has its place.

                                        Z-Bot CoreXY Build | Thingiverse Profile

                                        1 Reply Last reply Reply Quote 1
                                        • gnydick
                                          gnydick @wilriker last edited by gnydick

                                          @wilriker

                                          My following assumption that the firmware only ever writes complete files, not ever edits in-place, could be wrong. BUT, if it's not, then I assert the following.

                                          I think we're asking too much of the firmware to do in-place editing of text files though. It may sound simple, but it's actually quite a bit more effort than it is to just write a complete file. You have to read in the file, store it's contents in a structure that can be manipulated, like an associative array, then insert new or edit existing values, and then output it out in the same order it was ingested. That "same order" part is actually another expensive operation. You're effectively implementing a very simple on-disk database, which is not trivial.

                                          Aside from that, and I KNOW this is not likely, but if you have concurrent users making changes through functions that generate config, now you have to worry about not overwriting each other or corrupting the file if the changes happen at the same time. That requirement literally puts in-place editing out of the question.

                                          So, complete file generation totally makes sense.

                                          wilriker 1 Reply Last reply Reply Quote 1
                                          • wilriker
                                            wilriker @gnydick last edited by

                                            @gnydick Are you sure you wanted to address me with that reply? 🤔 Because I already said it does only (over)write complete files and does no in-place editing. 😉

                                            Manuel
                                            Duet 3 6HC (v0.6) with RPi 4B on a custom Cartesian
                                            with probably always latest firmware/DWC (incl. betas or self-compiled)
                                            My Tool Collection

                                            gnydick 1 Reply Last reply Reply Quote 0
                                            • DocTrucker
                                              DocTrucker last edited by

                                              It does add simulation results data to the tail of gcode files. Main issue would be the indefinate line length and as far as I'm aware the user isn't limited to a set precision for decimals.

                                              Running 3 P3Steel with Duet 2. Duet 3 on the shelf looking for a suitable machine. One first generation Duet in a Logo/Turtle style robot!

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

                                                Come to think of it the merge back feature could possibly be a feature request for DWC.

                                                That said, never had a problem with config-override.

                                                Running 3 P3Steel with Duet 2. Duet 3 on the shelf looking for a suitable machine. One first generation Duet in a Logo/Turtle style robot!

                                                1 Reply Last reply Reply Quote 0
                                                • gnydick
                                                  gnydick @wilriker last edited by

                                                  @wilriker not necessarily.

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

                                                    @wilriker For sure you can have anything you like in config.override but why have 2 configuration files? A case in point..... It sometimes happens that the auto tune is less than perfect and users are encouraged to increase or decrease the dead time. If you do that to the values that are in config.g the changes won't stick because they will be overridden by what's in config override. So you have to edit what's in config override. Oh wait - config override has a great big warning - do not edit. No wonder new users get confused.

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

                                                    1 Reply Last reply Reply Quote 0
                                                    • Dougal1957
                                                      Dougal1957 last edited by

                                                      I Have a config-override file BUT I only ever use it to make copy and paste commands into Config.g I DO NOT EVER use M501 to read it back to the printer been bitten far to often with eprom settings

                                                      fcwilt 1 Reply Last reply Reply Quote 0
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