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Duet Wifi keeps wrecking my printer, not happy!

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  • undefined
    SplatHammer @dc42
    last edited by 4 Sept 2018, 17:30

    @dc42
    I have solved the problem. It turned out not to be a faulty board, it was geometry. My mount was designed to be able to easily change hotends. Basically I had originally intended to use a MK10 hotend but later changed it for a V6. I should have made a change to the way the adapter plate was mounted but didnt, long and short was that if the hotend touched the surface at all it had a tendency for the mount to flex slightly and turn into a self-energising brake as the flex decreased the clearance causing it to jam against the surface. I checked the z axis reading on the web control before pulling the plug and saw it was still showing 0.6mm which eliminated the possibility of the bed moving unless it was a very subtle stealth bug. After recovering from the last crash i moved the head back to the same position *power off( and moved it forward and bingo insta jam. That explains why it only happened sometimes, if the travel was in the other direction it wouldnt jam as any flex would increase clearance.

    I am currently baking a large humble pie : (

    I would have had it sorted yesterday but we had a series of electrical storms and the power kept glitching so no printing or computer.

    Sorry for all the hassle, but I had actually eliminated all the possibilities I could think of and since I knew there were no problems with the printer motor/movement/wiring wise it seemed a faulty board was the only remaining cause - obviously I was wrong.

    Again sorry.

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      SplatHammer @streamliner
      last edited by 4 Sept 2018, 17:33

      @streamliner Thank for the offer but I worked out the problem, see my response to DC42. By the way I did have a test procedure when I powered it on the first time and was using a cheap hotend. It was only after it had passed all tests I let the hotend and bed get cosy!

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        SplatHammer @fcwilt
        last edited by 4 Sept 2018, 17:34

        @fcwilt Solved it, see my reply to DC42 if you are curious as to what it was. thanks for the help.

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          SplatHammer @deckingman
          last edited by 4 Sept 2018, 17:36

          @deckingman I finally sorted it, turned out to be a bit of bad geometry in the print head mount, under certain circumstances it turned into a self-energising brake. see my reply to DC42 for more details. That sounds like the oven timer going off, my large humble pie must be finished baking, time to go eat it!

          undefined undefined 2 Replies Last reply 4 Sept 2018, 18:29 Reply Quote 0
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            fcwilt @SplatHammer
            last edited by 4 Sept 2018, 18:29

            @splathammer said in Duet Wifi keeps wrecking my printer, not happy!:

            @deckingman I finally sorted it, turned out to be a bit of bad geometry in the print head mount, under certain circumstances it turned into a self-energising brake. see my reply to DC42 for more details. That sounds like the oven timer going off, my large humble pie must be finished baking, time to go eat it!

            Glad to hear you found the problem.

            Occam's Razor comes through again. ๐Ÿ˜‰

            I hope the pie is Apple - I love Apple pie.

            Frederick

            Printers: a small Utilmaker style, a small CoreXY and a E3D MS/TC setup. Various hotends. Using Duet 3 hardware running 3.4.6

            undefined 1 Reply Last reply 4 Sept 2018, 19:29 Reply Quote 0
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              deckingman @SplatHammer
              last edited by 4 Sept 2018, 18:43

              @splathammer said in Duet Wifi keeps wrecking my printer, not happy!:

              @deckingman I finally sorted it, turned out to be a bit of bad geometry in the print head mount, under certain circumstances it turned into a self-energising brake. see my reply to DC42 for more details. That sounds like the oven timer going off, my large humble pie must be finished baking, time to go eat it!

              Man, I'm so pleased for you. And it's great that you are man enough to admit what the fault was. Most people would simply slink away and leave everyone else wondering what the hell the problem could have been.

              Don't feel bad about it. We all make mistakes or overlook things (and that sleep deprivation thing is a killer).

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

              1 Reply Last reply Reply Quote 1
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                SplatHammer @fcwilt
                last edited by 4 Sept 2018, 19:29

                @fcwilt Its Apple Humble Pie ; )

                undefined 1 Reply Last reply 4 Sept 2018, 19:59 Reply Quote 0
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                  fcwilt @SplatHammer
                  last edited by 4 Sept 2018, 19:59

                  @splathammer said in Duet Wifi keeps wrecking my printer, not happy!:

                  @fcwilt Its Apple Humble Pie ; )

                  Yum!!!

                  Printers: a small Utilmaker style, a small CoreXY and a E3D MS/TC setup. Various hotends. Using Duet 3 hardware running 3.4.6

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                    streamliner
                    last edited by streamliner 9 Apr 2018, 22:07 4 Sept 2018, 22:02

                    @SplatHammer I am glad you worked that out! I have been chasing issues down on a product for some time now, and it's amazing how a seemingly complex problem can turn out to be one of the most simple. now, let's see what you can do with that board!! ๐Ÿ˜ƒ Curious: Do you have some pics available of your build? I would really like to see it.

                    I also want to underscore what Ian said -- thank you for acknowledging you had made a mistake. We all can get very hot headed/upset with 3d printing, it's just the nature of the beast.... what separates the men from the boys, per se, is owning up to your problems and carrying on without getting hung up on the details, insulting someone, etc... This is another reason why I love the Duet community... we tend to have a lot of people with these qualities, and that fosters even more to follow their lead. ๐Ÿ˜ƒ

                    I am preparing to do a similar build that I will be utilizing as a test bed; it will be modeled very similarly to the design E3D has been using to show their toolchanger... the idea will be: solid, high-quality build with easy access to all components for the purposes of testing out various configurations quickly.

                    Thanks,

                    David@M3D

                    undefined 2 Replies Last reply 5 Sept 2018, 07:10 Reply Quote 0
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                      SplatHammer @streamliner
                      last edited by 5 Sept 2018, 07:10

                      @streamliner Thanks and thanks for the help and advice.!
                      If you like I will post some pics when I have tidied it up a bit, still havent put the drag chain on the z axis.
                      If you are doing a build try checking out these guys if you are looking for linear rails http://www.cpc-europa.de they can probably also point you in the right direction for a UK (or wherever you are) distributer. Quality is excellent (they are not quite as silky smooth as the hiwins out of the box but they have broken in quickly and are now perfect. They are also pretty cheap, I was quoted โ‚ฌ75 for 15mm HRC X 70cm in H precision and V0 preload. They are US made.
                      Also take a look at Primopal steppers (www.primopal.com) , they make every type of stepper and servo and drivers you can imagine and have ebay and aliexpress stores. Quality is fantastic and they are very helpful and will send you exactly what you want if one of their packs (they usually sell them in sets of 3-5 of the same type but will mix if you want). I caqn look for the links if you are interested.
                      Richard

                      undefined 1 Reply Last reply 7 Sept 2018, 19:04 Reply Quote 0
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                        SplatHammer @streamliner
                        last edited by 5 Sept 2018, 07:49

                        @streamliner
                        A couple more suppliers that might interest you:
                        These guys do a huge range of pulleys and belts. Belts are very high quality (thin and flexible), cut straight and no fibres on the edge.
                        https://powge.aliexpress.com/store/702327?spm=a2g0s.9042311.0.0.27424c4dQMdS5B
                        Huge range of bed heaters, will do custom really cheap (1500 watt - ok overkill but it heats to 60C in about 90 seconds and its mic8! - 50cm x 55cm $75) Quality is excellent, power cable is silicon sheathed. About 1/3 price of competitor.
                        Hope this helps!

                        undefined 1 Reply Last reply 5 Sept 2018, 07:50 Reply Quote 0
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                          SplatHammer @SplatHammer
                          last edited by 5 Sept 2018, 07:50

                          @splathammer Forgot the link for the heaters
                          https://www.aliexpress.com/store/709519?spm=2114.10010108.0.0.4e337493ueO7Ab

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                            wilriker @SplatHammer
                            last edited by wilriker 9 May 2018, 11:40 5 Sept 2018, 11:39

                            @splathammer said in Duet Wifi keeps wrecking my printer, not happy!:

                            @deckingman I just got it to install! I suddenly noticed the error message said it couldnt find "DuetWiFiFirmware.bin" and the file is named Duet2CombinediFirmware.bin on github AND in the installation instructions. What a load of CยทยทP!

                            I'm sorry to be a little late to the party.
                            First of all I am happy to see that you finally sorted out the printing problems.

                            Regarding the quoted part above: you need to upgrade to the latest iap4e.bin (can be found here). This is actually what performs the updates and the filename for the update file is hardcoded in there. This name was changed in 1.21 or 2.0 (not sure anymore) but it required also to update the updater.

                            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

                            undefined undefined 2 Replies Last reply 6 Sept 2018, 07:45 Reply Quote 0
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                              SplatHammer @wilriker
                              last edited by 6 Sept 2018, 07:45

                              @wilriker Thanks for that! I had it on the card with V1.9 so thought it would be ok, I will update.

                              1 Reply Last reply Reply Quote 0
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                                dc42 administrators @wilriker
                                last edited by 6 Sept 2018, 08:27

                                @wilriker said in Duet Wifi keeps wrecking my printer, not happy!:

                                Regarding the quoted part above: you need to upgrade to the latest iap4e.bin (can be found here). This is actually what performs the updates and the filename for the update file is hardcoded in there. This name was changed in 1.21 or 2.0 (not sure anymore) but it required also to update the updater.

                                Just to be clear, it is only old versions of iap4e.bin (older than about February 2017) that use a fixed filename (DuetWiFiFirmware.bin) instead of using the filename that RepRapFirmware passes to iap4e. But upgrading iap4e.bin to latest version won't do any harm. I think the reason that @SplatHammer had trouble upgrading is as described at https://duet3d.dozuki.com/Wiki/Installing_and_Updating_Firmware#Section_Upgrading_a_Duet_WiFi_or_Ethernet_to_firmware_1_21_or_later_from_1_20_or_earlier.

                                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

                                undefined 1 Reply Last reply 6 Sept 2018, 12:10 Reply Quote 0
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                                  wilriker @dc42
                                  last edited by 6 Sept 2018, 12:10

                                  @dc42 said in Duet Wifi keeps wrecking my printer, not happy!:

                                  Just to be clear, it is only old versions of iap4e.bin (older than about February 2017) that use a fixed filename (DuetWiFiFirmware.bin) instead of using the filename that RepRapFirmware passes to iap4e.

                                  Thanks for correcting me.

                                  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
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                                    Danal
                                    last edited by 6 Sept 2018, 13:30

                                    As a sideline observer, let me pile on:

                                    Happy you found root cause.

                                    VERY good of you to "own it".

                                    Delta / Kossel printer fanatic

                                    1 Reply Last reply Reply Quote 1
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                                      patakopecek @SplatHammer
                                      last edited by 7 Sept 2018, 13:05

                                      @splathammer the baby stepping combined with bad connection can mean big problems, like sending a command twice or more times

                                      undefined 1 Reply Last reply 7 Sept 2018, 18:55 Reply Quote 0
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                                        SplatHammer @patakopecek
                                        last edited by 7 Sept 2018, 18:55

                                        @patakopecek I sorted out the connection problem and I have only used baby stepping once. It was entirely the problem of the mount. I have already made several perfect prints. Now I am able to fine tune the machine the quality is incredible with no ripples or artifacts -all surfaces are like glass!

                                        1 Reply Last reply Reply Quote 1
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                                          wilriker @SplatHammer
                                          last edited by 7 Sept 2018, 19:04

                                          @splathammer said in Duet Wifi keeps wrecking my printer, not happy!:

                                          Also take a look at Primopal steppers (www.primopal.com) [...] I caqn look for the links if you are interested.

                                          Actually I would be interested. ๐Ÿ˜‰

                                          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

                                          undefined 1 Reply Last reply 8 Sept 2018, 14:14 Reply Quote 0
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