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    Drastic improvements with BL Touch disabled

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    • RyanPundefined
      RyanP @deckingman
      last edited by RyanP

      @deckingman

      All of this I very much understood. This bed was never like this before this week. It is warpy, but not slanted. What I found at the beginning of the week was that the mesh seemed to over compensate for the warpiness lending to rough first layers.

      Removing the mesh certainly helped at the beginning of the week. But something mechanical has obviously happened during the week to lend to this major slant problem.

      What I can't wrap my head around is how the nozzle, which is a relatively fixed distance from the BL Touch pin, can be squared up and safely touching in each corner, and then the mesh turn out so slanted.

      Sunken center, and warpy dips....fine. But the nozzle safely touches in all four corners and it is not represented as such in the mesh.

      CR10S, August 2018
      Anycubic Photon S December 2019
      Ender 5 Feb 2020
      Ender 5 Plus May 2020
      Anycubic Photon Mono X Nov 2020
      ~
      https://3dimensiongames.com/

      RyanPundefined o_lampeundefined 2 Replies Last reply Reply Quote 0
      • RyanPundefined
        RyanP @RyanP
        last edited by

        @Phaedrux @deckingman

        I have now disassembled the bed platform, turned it over, and re-secured it. removed and rotated the build plate, re-secured it.

        Its amazing how much time you can lose on a mechanical issue.

        @Phaedrux regarding the G92 Z0 / G30 S-1, I did this earlier today and started an excel spreadsheet to track the issues. I didn't finish it as it was immediately apparent that the bed was sloping downward at the front (Yaxis), just like the mesh shows. X Axis was relatively stable down to 0.015mm.

        Still working on things.

        CR10S, August 2018
        Anycubic Photon S December 2019
        Ender 5 Feb 2020
        Ender 5 Plus May 2020
        Anycubic Photon Mono X Nov 2020
        ~
        https://3dimensiongames.com/

        RyanPundefined 1 Reply Last reply Reply Quote 0
        • RyanPundefined
          RyanP @RyanP
          last edited by

          E5 HeightMap 3.jpg

          Its a start.

          CR10S, August 2018
          Anycubic Photon S December 2019
          Ender 5 Feb 2020
          Ender 5 Plus May 2020
          Anycubic Photon Mono X Nov 2020
          ~
          https://3dimensiongames.com/

          1 Reply Last reply Reply Quote 0
          • zaptaundefined
            zapta
            last edited by zapta

            "Drastic improvements with BL Touch disabled"

            I should get one for my printer and disable it.

            RyanPundefined 1 Reply Last reply Reply Quote 1
            • RyanPundefined
              RyanP @zapta
              last edited by

              @zapta

              Thanks for your input.

              CR10S, August 2018
              Anycubic Photon S December 2019
              Ender 5 Feb 2020
              Ender 5 Plus May 2020
              Anycubic Photon Mono X Nov 2020
              ~
              https://3dimensiongames.com/

              engikeneerundefined 1 Reply Last reply Reply Quote 2
              • o_lampeundefined
                o_lampe @RyanP
                last edited by o_lampe

                @ryanp said in Drastic improvements with BL Touch disabled:

                What I can't wrap my head around is how the nozzle, which is a relatively fixed distance from the BL Touch pin, can be squared up and safely touching in each corner, and then the mesh turn out so slanted.

                The only difference I see is the Z-offset. You align the bed manually with the nozzle touching the bed, but the mesh routine stops around 2.6mm above the bed. You already replaced the Z-nuts, but something (had) happen during the last 2.6mm.
                Maybe Z-acceleration is too high? The same value applies for deceleration. That would get worse when you use multiple small moves to lower the nozzle.

                Another thing I noticed is the 'bellows' like up and down along X-axis of your last heightmap. Why is every other probe point lower or higher?

                1 Reply Last reply Reply Quote 0
                • engikeneerundefined
                  engikeneer @RyanP
                  last edited by

                  @ryanp asking the silly questions, but was mesh compensation disabled when you did the nozzle height test? I ended going round and round in circles when I first started using auto bed levelling because I had mesh compensation enabled at the same time (so it was trying to level a compensated bed and the two things just fought each other).

                  E3D TC with D3Mini and Toolboards.
                  Home-built CoreXY, Duet Wifi, Chimera direct drive, 2x BMG, 300x300x300 build volume
                  i3 clone with a bunch of mods

                  1 Reply Last reply Reply Quote 0
                  • Hornetriderundefined
                    Hornetrider
                    last edited by

                    Hi @RyanP

                    I have had similar issues with my printer concerning the bed leveling.
                    Have you tried to mechanically align all axis to the bed?

                    What helped me was the following procedure:

                    1. Check with a digital Bevel box if the frame of printer is leveled (x, Y and Z Frame)
                      -> If not, get it leveled
                    2. Check if the bed is leveled with digital Bevel Box
                      -> use X & Y Frame as reference (zero bevel box to that reference)
                      -> Level it out as good as possible
                    3. Check X and Y axis are leveled to the bed with a caliper and get this down to 0.1..0.2 mm
                      -> It might be that axis are out of level to the frame

                    Funny thing though, even after mechanically aligning my printer I had a weird effect on the height map.
                    My finding is, that if the height map shows a clear deviation to one side (mostly X-axis) then the mechanical alignment to the bed might be poor.

                    1 Reply Last reply Reply Quote 0
                    • RyanPundefined
                      RyanP
                      last edited by

                      Still Working on it

                      Corner One Probe
                      4.309 mm
                      4.307 mm
                      4.306 mm

                      Corner 2 Probe
                      3.981 mm
                      3.983 mm
                      3.983 mm

                      Corner 3 Probe
                      3.380 mm
                      3.388 mm
                      3.385 mm

                      Corner 4 Probe
                      3.933 mm
                      3.929 mm
                      3.931 mm

                      CR10S, August 2018
                      Anycubic Photon S December 2019
                      Ender 5 Feb 2020
                      Ender 5 Plus May 2020
                      Anycubic Photon Mono X Nov 2020
                      ~
                      https://3dimensiongames.com/

                      RyanPundefined 1 Reply Last reply Reply Quote 0
                      • RyanPundefined
                        RyanP @RyanP
                        last edited by

                        Im taking a break from it. I have other working machines and need to take a break from it. Get back to it tomorrow.

                        CR10S, August 2018
                        Anycubic Photon S December 2019
                        Ender 5 Feb 2020
                        Ender 5 Plus May 2020
                        Anycubic Photon Mono X Nov 2020
                        ~
                        https://3dimensiongames.com/

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

                          Your probe results look consistent in one spot, which is good, but they also seem to vary with XY position a bit still. Dipping off to the back side by the looks of the map?

                          The fact that your adjustments and re-alignments are making a difference is a good sign though.

                          Z-Bot CoreXY Build | Thingiverse Profile

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

                            @phaedrux

                            Well, I don't even know where to begin. As I previously posted on Saturday, I had gotten close to fixing my issue with my bed and probing, but was going to walk away for a few days (canadian long weekend).

                            I've come back to this machine now with a clear mind and a few ideas.

                            I turn the machine on and warm it up. This machine is using the Duet 2 Maestro, and 2.05 firmware.

                            I hit the home button:
                            E5 p1.jpg

                            Print head moves X and Y to their endstops, then to the center of the bed. The BL Touch probe is deployed properly, touches the glass surface twice and reports back the correct z-offset and moves the head up to the expected position:

                            E5 p2.jpg

                            But as soon as it stops its motion the head position for the Z-axis turns from 11.77 to this:

                            E5 p3.jpg

                            Now the machine is locked up and I cannot move the head with the DWC controls or macros.

                            I'm starting to think that the Maestro board is pooched, but I really have no idea. I have a backup Duet 2 Wifi board here that I can replace the Maestro with, but I would rather know for sure.

                            CR10S, August 2018
                            Anycubic Photon S December 2019
                            Ender 5 Feb 2020
                            Ender 5 Plus May 2020
                            Anycubic Photon Mono X Nov 2020
                            ~
                            https://3dimensiongames.com/

                            droftartsundefined o_lampeundefined 2 Replies Last reply Reply Quote 0
                            • droftartsundefined
                              droftarts administrators @RyanP
                              last edited by

                              @ryanp post your homeall.g file?

                              Ian

                              Bed-slinger - Mini5+ WiFi/1LC | RRP Fisher v1 - D2 WiFi | Polargraph - D2 WiFi | TronXY X5S - 6HC/Roto | CNC router - 6HC | Tractus3D T1250 - D2 Eth

                              RyanPundefined 1 Reply Last reply Reply Quote 0
                              • RyanPundefined
                                RyanP @droftarts
                                last edited by

                                @droftarts

                                ; homeall.g
                                ; called to home all axes
                                ;
                                ; generated by RepRapFirmware Configuration Tool v2.1.8 on Tue Feb 18 2020 18:08:45 GMT-0500 (Eastern Standard Time)
                                G91                     ; relative positioning
                                G1 H2 Z5 F9000        ; lift Z relative to current position
                                G1 H1 X-240 Y-240 F3000 ; move quickly to X and Y axis endstops and stop there (first pass)
                                G1 H2 X20 Y20 F3000      ; go back a few mm
                                G1 H1 X-240 Y-240 F1000  ; move slowly to X and Y axis endstops once more (second pass)
                                G90                     ; absolute positioning
                                G1 X110 Y80 F9000 	; go to center of bed  ; go to first bed probe point and home Z
                                G30                     ; home Z by probing the bed
                                
                                ; Uncomment the following lines to lift Z after probing
                                G91                   ; relative positioning
                                G1 Z5 F9000            ; lift Z relative to current position
                                G90                   ; absolute positioning
                                G29 S1                  ; absolute positioning
                                

                                CR10S, August 2018
                                Anycubic Photon S December 2019
                                Ender 5 Feb 2020
                                Ender 5 Plus May 2020
                                Anycubic Photon Mono X Nov 2020
                                ~
                                https://3dimensiongames.com/

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

                                  I wonder if it's a problem from loading the heightmap. Can you try deleting the heightmap.csv file and recreating it fresh?

                                  Z-Bot CoreXY Build | Thingiverse Profile

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

                                    @phaedrux
                                    Will do.

                                    CR10S, August 2018
                                    Anycubic Photon S December 2019
                                    Ender 5 Feb 2020
                                    Ender 5 Plus May 2020
                                    Anycubic Photon Mono X Nov 2020
                                    ~
                                    https://3dimensiongames.com/

                                    1 Reply Last reply Reply Quote 0
                                    • o_lampeundefined
                                      o_lampe @RyanP
                                      last edited by o_lampe

                                      @ryanp said in Drastic improvements with BL Touch disabled:

                                      This machine is using the Duet 2 Maestro, and 2.05 firmware.

                                      Did you go through 'known bugs' related to RRF 2.0x? Maybe there were unsolved issues with BLtouch?

                                      I have checked an old SD-card image from RRF2.05 and there are retractprobe.g and unretractprobe.g in the /sys folder. I remember, they messed up my homing routine, because they contained some BS....
                                      I didn't know, that 'G30' always calls them, if present...

                                      1 Reply Last reply Reply Quote 0
                                      • RyanPundefined
                                        RyanP
                                        last edited by

                                        @Phaedrux @o_lampe

                                        deleting the text in the height map did solve the latest issue.

                                        But now I am having problems with the Maestro board connecting to the network. If I turn the unit off, then back on, many times now it won't connect. I have to turn it off, unplug it, plug it back in and turn it on...and even thats 50/50.

                                        All my wifi units work. So Im going to swap the cable, as well as review the access point it is connected to. But I have a pretty extensive knowledge of home networking from my home audio and automation days, and am confident regarding my network.

                                        Like I mentioned, I have a backup Duet 2 Wifi board that I can use if I think something has

                                        CR10S, August 2018
                                        Anycubic Photon S December 2019
                                        Ender 5 Feb 2020
                                        Ender 5 Plus May 2020
                                        Anycubic Photon Mono X Nov 2020
                                        ~
                                        https://3dimensiongames.com/

                                        RyanPundefined 1 Reply Last reply Reply Quote 1
                                        • RyanPundefined
                                          RyanP @RyanP
                                          last edited by

                                          @Phaedrux @o_lampe @droftarts @Hornetrider @engikeneer @deckingman

                                          I have fixed my problem. I took apart the printer last weekend and re-assembled it. Moving some of the extrusions around (like rotating your tires) and re-squared everything up. Found one spot that seemed a but off so I positioned it with a small gap and tightened things up with a metal 90 degree corner.

                                          I also noticed that my bed.g file looked like this

                                          M561 				; clear any bed transform
                                          G29 S2				; Clear bed height map
                                          ; Probe 2-points
                                          M401 				; Deploy probe - deployprobe.g
                                          G30 P0 X90 Y115 Z-9999 		; Center Left
                                          G30 P1 X125 Y115 Z-9999 S2 	; Center Right
                                          M402 
                                          

                                          But there is only one 7 axis on this printer. So I deleted everything expect the M561 command.

                                          Between those two things, my printing is back to normal. I wanted to thank everyone for their suggestions.

                                          CR10S, August 2018
                                          Anycubic Photon S December 2019
                                          Ender 5 Feb 2020
                                          Ender 5 Plus May 2020
                                          Anycubic Photon Mono X Nov 2020
                                          ~
                                          https://3dimensiongames.com/

                                          1 Reply Last reply Reply Quote 1
                                          • DonStaufferundefined
                                            DonStauffer @RyanP
                                            last edited by

                                            @ryanp Check the reliability of the wiring from your BLTouch. I found 2 only occasionally intermittent wiring problems that caused me no end of problems. The intermittent nature of the problems had me confused for a very long time. What clued me in was that for a while, the probe started failing to probe at one corner of the bed, every time. That said to me it was the wiring being moved. Sure enough, that was the big problem.

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