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Setting up Cartesian Printer.

Scheduled Pinned Locked Moved
Tuning and tweaking
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  • undefined
    Corexy
    last edited by 25 Oct 2016, 09:45

    Hey thanks mate, much appreciated.

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    • undefined
      deckingman
      last edited by 25 Oct 2016, 09:53

      No worries. A quick google search of "RepRap start and end gcodes" or some such term will likely throw up some other examples, tips or tricks.

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

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      • undefined
        Corexy
        last edited by 26 Oct 2016, 05:03

        Set Z to whatever your Z axis travel is, set F to whatever feed rate you use for the Z axis. IMPORTANT set S1 - this flag will check for end stop - if not set, the axis will try to keep moving by whatever amount you set

        I don't have an end stop on the Z axis. It just homes at the IR probe/hot end and goes from there.

        Will that be OK?

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        • undefined
          dc42 administrators
          last edited by 26 Oct 2016, 06:17

          @Corexy:

          Set Z to whatever your Z axis travel is, set F to whatever feed rate you use for the Z axis. IMPORTANT set S1 - this flag will check for end stop - if not set, the axis will try to keep moving by whatever amount you set

          I don't have an end stop on the Z axis. It just homes at the IR probe/hot end and goes from there.

          Will that be OK?

          Yea that's fine. I just move the head up or bed down a few mm and then move to an XY position that makes the print easy to remove. Like this:

          G91
          G1 Z3 F300
          G90
          G1 X200 Y200
          M0

          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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          • undefined
            deckingman
            last edited by 26 Oct 2016, 08:22

            @CoreXY,

            If you want to send Z all the way to the far end, at the end of the print, you can do it by using absolute(G90) rather than relative (G91) but it's really important that the Z is homed before you use this command. i.e. the machine must know where Z=0 is. So, it'll be safe to use in your end gcode as the machine will have been homed prior to starting the print.

            So you could use:

            G90 ; set absolute positioning
            G1 Znnn F240

            This will move to Z axis to the absolute position of nnn from home, so set nnn to whatever you max Z is (less a few mm for safety and comfort).

            If you haven't already done so, it's a good idea to set your axes maxima in you config.g. Like this
            M208 Xnnn Ynnn Znnn S0; S0 defines maxima (S1 defines minima)

            If you do that, then once the machine has been homed, it'll wont allow you to send an axis past those limits. So if your Z max was 200mm and you tried to send it (using absolute positioning) to 250 mm, it would just stop at 200mm.

            If you want to be really belt and braces, you could do what I do and fit additional end stop switches on the maxima of all the axes and wire them up in series and connect them to a spare e stop. Then use M581 in your config.g. One caveat to this is that if you use the DWC to send a movement, this is treated like a macro and the switch will be ignored. David has it on his list to change this.
            HTH

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

            1 Reply Last reply Reply Quote 0
            • undefined
              Corexy
              last edited by 26 Oct 2016, 10:58

              @deckingman:

              @CoreXY,

              If you want to send Z all the way to the far end, at the end of the print, you can do it by using absolute(G90) rather than relative (G91) but it's really important that the Z is homed before you use this command. i.e. the machine must know where Z=0 is. So, it'll be safe to use in your end gcode as the machine will have been homed prior to starting the print.

              So you could use:

              G90 ; set absolute positioning
              G1 Znnn F240

              This will move to Z axis to the absolute position of nnn from home, so set nnn to whatever you max Z is (less a few mm for safety and comfort).

              If you haven't already done so, it's a good idea to set your axes maxima in you config.g. Like this
              M208 Xnnn Ynnn Znnn S0; S0 defines maxima (S1 defines minima)

              If you do that, then once the machine has been homed, it'll wont allow you to send an axis past those limits. So if your Z max was 200mm and you tried to send it (using absolute positioning) to 250 mm, it would just stop at 200mm.

              If you want to be really belt and braces, you could do what I do and fit additional end stop switches on the maxima of all the axes and wire them up in series and connect them to a spare e stop. Then use M581 in your config.g. One caveat to this is that if you use the DWC to send a movement, this is treated like a macro and the switch will be ignored. David has it on his list to change this.
              HTH

              Cheers Deckingham,

              This particular machine is my first go with the Duet, and is a conversion of an existing printer, therefore no limit switch on the Z axis.

              I do however have my axis' max's set, and yes it wont let you go past those presets.

              S3D does have a homing in the start of the print.

              When I do build my own printer I will definitely add an extra limit switch at the bottom of the Z axis.

              I must say I am enjoying this printing system.

              The printer runs much quieter (I've got a standard unconverted Zortrax running right beside it), and the temps hold absolutely rock solid.

              I did update both the board and panel firmwares today and re run the temp tuning on the extruder and bed.

              I'm messing around with raft printing in ABS at the moment, trying to get that velcro style rip off raft happening.

              All in all the combination of the DuetWifi and S3D are working reasonably well in my inexperienced hands, much better than I expected.

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              • undefined
                deckingman
                last edited by 26 Oct 2016, 13:48

                That's good to hear. I'm thinking of switching from slic3r to S3D myself - just need to know if it can do 3 (or more) colour prints. It looks like it has some good features but might be a bit complicated for an old guy like me:)

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

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                • undefined
                  iDevelo
                  last edited by 26 Oct 2016, 14:23

                  @deckingman:

                  That's good to hear. I'm thinking of switching from slic3r to S3D myself - just need to know if it can do 3 (or more) colour prints. It looks like it has some good features but might be a bit complicated for an old guy like me:)

                  If you can use slic3r then S3D will be a breeze and yes you can do multi colour prints.

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                  • undefined
                    Dougal1957
                    last edited by 26 Oct 2016, 14:31

                    It's not just multi colour that Ian needs tho He has to be able to handle 3 colour in a colour mixing hotend

                    Ian My offer still stands mate?

                    Doug

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                    • undefined
                      Zesty_Lykle
                      last edited by 26 Oct 2016, 14:39

                      Oh where did I read that! The Diamond head needs firmware retraction as it pulls all filaments at the same time during retraction.
                      And that is a difficult trick to do and I think S3D doesn't support it. Dang, cannot find where I read it.
                      Bouncing between so many forums at the moment! (Wonder why?) I lose track of what I read where.

                      The guys of Reprap.me should know for sure.

                      Lykle
                      Design, make and enjoy life

                      Co Creator of the Zesty Nimble

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                      • undefined
                        Dougal1957
                        last edited by 26 Oct 2016, 14:48

                        Lykle

                        It is supported on the Duet and S3D does support FW Retraction of a kind they use M101/102 and 103 codes which according to the RepRap wiki on GCodes has been deprecated in all but TeaCup firmware so we can't understand why S3D went that way at all

                        Fortunately you can post process all S3D Stuff very quickly within the SW Package by using the Scripting section to replace those M103 with G11 or whatever is required but it would be better if S3D Supported it on a FW Requirement basis it can't be that hard to do. mind I am not a software engineer so what do I know

                        Doug

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                        • undefined
                          Zesty_Lykle
                          last edited by 26 Oct 2016, 18:26

                          Ah, great thanks Doug!

                          Lykle
                          Design, make and enjoy life

                          Co Creator of the Zesty Nimble

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                          • undefined
                            Corexy
                            last edited by 26 Oct 2016, 20:24

                            @deckingman:

                            That's good to hear. I'm thinking of switching from slic3r to S3D myself - just need to know if it can do 3 (or more) colour prints. It looks like it has some good features but might be a bit complicated for an old guy like me:)

                            I'm an old bugger myself, and if I can use it I'm sure you can.

                            1 Reply Last reply Reply Quote 0
                            • undefined
                              Zesty_Lykle
                              last edited by 27 Oct 2016, 12:07

                              I think I beat you all hands down. 60. Old enough to be the winner here?

                              New version of S3D came out and they now specifically support multi extruder setups (3 and more)

                              Lykle
                              Design, make and enjoy life

                              Co Creator of the Zesty Nimble

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                              • undefined
                                Dougal1957
                                last edited by 27 Oct 2016, 12:47

                                Lykle

                                Unfortunately not Deckingman has that honour (I'll him admit to how much lol)

                                AS for multi extruders they have supported them for ages just not the easiest thing to get your head arround the main issue here is the Firmware Retraction that is essential for mixing hotends such as the Diamond?

                                Doug

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                                • undefined
                                  deckingman
                                  last edited by 27 Oct 2016, 14:32

                                  @Dougal1957:

                                  Lykle

                                  Unfortunately not Deckingman has that honour (I'll him admit to how much lol)

                                  Doug

                                  I was born in year of our present queen's coronation.

                                  Ian.

                                  P.S. If you bothered to check when that was, you should be ashamed of yourself for not having anything better to do.

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

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                                  • undefined
                                    Dougal1957
                                    last edited by 27 Oct 2016, 14:36

                                    I know when it was Ian but Lykle is a dutchman in Cyprus LOL. and for his benefit it was 1953.

                                    Doug

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                                    • undefined
                                      dc42 administrators
                                      last edited by 27 Oct 2016, 14:47

                                      Perhaps we should start a club for Over 60's 3D printing enthusiasts? I'd be eligible too!

                                      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
                                      • undefined
                                        Dougal1957
                                        last edited by 27 Oct 2016, 14:50

                                        Well you would have to wait a few months till I'm Eligible David (Mar 2017 for me).

                                        Doug

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                                        • undefined
                                          iDevelo
                                          last edited by 27 Oct 2016, 15:19

                                          OMG - old farts club!

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