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Ender 3 RRF v1.1 setting up BLtouch

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Tuning and tweaking
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  • undefined
    re_tour @Gixxerfast
    last edited by 28 Dec 2021, 14:05

    @gixxerfast Okay, I have a new problem: despite my Z being at 0, there's still about 50-60mm space between the bed and the extruder tip.

    Creality Ender 3 | BIGTREETECH E3 RRF V1.1 Wifi | BLTouch | RepRap 3.3.0_11

    undefined 1 Reply Last reply 28 Dec 2021, 14:08 Reply Quote 0
    • undefined
      Gixxerfast @re_tour
      last edited by 28 Dec 2021, 14:08

      @re_tour Can you take a screen dump of DWC Dashboard.

      and also add your latest config.g and homez.g

      Voron V2.4 (#1317) with Duet 3 Mini5+ Wifi and 1LC v1.1 Toolboard
      Voron V0.1 (#637) with Duet 3 Mini 5+ Wifi and 1LC v1.2 Toolboard
      Ender 3 Pro with BTT SKR-2 + RRF

      undefined 1 Reply Last reply 28 Dec 2021, 14:11 Reply Quote 1
      • undefined
        re_tour @Gixxerfast
        last edited by 28 Dec 2021, 14:11

        @gixxerfast
        Dashboard:
        cfe4332e-c669-4222-90ba-1b3b6b3147e5-kép.png

        config.g:

        ; Configuration file for SKR-RFF-E3-v1.1 (firmware version 3)
        ; executed by the firmware on start-up
        ;
        ; generated by RepRapFirmware Configuration Tool v3.3.1-LPC-STM32+2 on Tue Dec 28 2021 01:07:55 GMT+0100
        ; General preferences
        G90 ; send absolute coordinates...
        M83 ; ...but relative extruder moves
        M550 P"Ender3" ; set printer name
        ; Network
        M552 S1 ; enable network
        M586 P0 S1 ; enable HTTP
        M586 P1 S0 ; disable FTP
        M586 P2 S0 ; disable Telnet
        ; Drives
        M569 P0 S0 ; physical drive 0 goes backwards using TMC2209 driver timings
        M569 P1 S0 ; physical drive 1 goes backwards using TMC2209 driver timings
        M569 P2 S1 ; physical drive 2 goes forwards using TMC2209 driver timings
        M569 P3 S1 ; physical drive 3 goes forwards using TMC2209 driver timings
        M584 X0 Y1 Z2 E3 ; set drive mapping
        M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation
        M92 X80.00 Y80.00 Z400.00 E93.00 ; set steps per mm
        M566 X1200.00 Y1200.00 Z60.00 E360.00 ; set maximum instantaneous speed changes (mm/min)
        M203 X9000.00 Y9000.00 Z1800.00 E6000.00 ; set maximum speeds (mm/min)
        M201 X500.00 Y500.00 Z100.00 E5000.00 ; set accelerations (mm/s^2)
        M906 X1000 Y1000 Z1000 E1000 I30 ; set motor currents (mA) and motor idle factor in per cent
        M84 S30 ; Set idle timeout
        ; Axis Limits
        M208 X0 Y0 Z0 S1 ; set axis minima
        M208 X235 Y235 Z260 S0 ; set axis maxima
        ; Endstops
        M574 X1 S1 P"xstop" ; configure switch-type (e.g. microswitch) endstop for low end on X via pin xstop
        M574 Y1 S1 P"ystop" ; configure switch-type (e.g. microswitch) endstop for low end on Y via pin ystop
        M574 Z1 S1 P"zstop" ; configure switch-type (e.g. microswitch) endstop for low end on Z via pin zstop
        ; Z-Probe
        M950 S0 C"servo0" ; create servo pin 0 for BLTouch
        M558 P9 C"^probe" H5 F300:120 A3 T6000 ; set Z probe type to bltouch and the dive height + speeds,the F300:120 first speed 300 second 120
        G31 P500 X117.5 Y117.5 Z0 ; set Z probe trigger value, offset and trigger height
        M557 X15:215 Y15:195 S20 ; define mesh grid
        ; Heaters
        M308 S0 P"bedtemp" Y"thermistor" T100000 B4092 ; configure sensor 0 as thermistor on pin bedtemp
        M950 H0 C"bed" T0 ; create bed heater output on bed and map it to sensor 0
        M307 H0 B0 R0.365 C296.6 D3.97 S1.00 V24.0 ; disable bang-bang mode for the bed heater and set PWM limit
        M140 H0 ; map heated bed to heater 0
        M143 H0 S120 ; set temperature limit for heater 0 to 120C
        M143 H0 S120 ; set temperature limit for heater 0 to 120C
        M308 S1 P"e0temp" Y"thermistor" T100000 B4092 ; configure sensor 1 as thermistor on pin e0temp
        M950 H1 C"e0heat" T1 ; create nozzle heater output on e0heat and map it to sensor 1
        M307 H1 B0 R2.845 C121.4:119.4 D5.71 S1.00 V24.0 ; disable bang-bang mode for heater and set PWM limit
        M143 H1 S245 ; set temperature limit for heater 1 to 245C
        ; Fans
        M950 F0 C"fan0" Q500 ; create fan 0 on pin fan0 and set its frequency
        M106 P0 C"Part Cooling Fan" S0 H-1 ; set fan 0 name and value. Thermostatic control is turned off
        M950 F1 C"fan1" Q500 ; create fan 1 on pin fan1 and set its frequency
        M106 P1 C"Hotend Fan" S0.01 H1 T45 ; set fan 1 name and value. Thermostatic control is turned on
        ; Tools
        M563 P0 D0 H1 F0 ; define tool 0
        G10 P0 X0 Y0 Z0 ; set tool 0 axis offsets
        G10 P0 R0 S0 ; set initial tool 0 active and standby temperatures to 0C
        ; Custom settings are not defined
        M918 P1 E4 E1000000

        homez.g:

        ; homez.g
        ; called to home the Z axis
        ; do nothing if XY is not homed yet
        if !move.axes[0].homed || !move.axes[1].homed
        echo "XY are not homed yet. Aborting"
        abort
        ;end if
        G91
        G1 H2 Z5 F6000
        G90
        G1 X130 Y160 F6000
        G30 K0 Z-99999 ; Probe the Z pin at the back
        G1 Z10 F9000

        Creality Ender 3 | BIGTREETECH E3 RRF V1.1 Wifi | BLTouch | RepRap 3.3.0_11

        undefined 1 Reply Last reply 28 Dec 2021, 14:15 Reply Quote 0
        • undefined
          Gixxerfast @re_tour
          last edited by 28 Dec 2021, 14:15

          @re_tour
          OK, a few things. I assume you want to replace any old z endstop switch with the probe. Then you need to remove this:

          M574 Z1 S1 P"zstop" ; configure switch-type (e.g. microswitch) endstop for low end on Z via pin zstop

          Also I don think you want to set your Z offset in the G32 to 0 (zero). It should reflect the distance between the probe (when triggered) and the nozzle.

          Voron V2.4 (#1317) with Duet 3 Mini5+ Wifi and 1LC v1.1 Toolboard
          Voron V0.1 (#637) with Duet 3 Mini 5+ Wifi and 1LC v1.2 Toolboard
          Ender 3 Pro with BTT SKR-2 + RRF

          undefined 1 Reply Last reply 28 Dec 2021, 14:20 Reply Quote 1
          • undefined
            re_tour @Gixxerfast
            last edited by re_tour 28 Dec 2021, 14:20

            @gixxerfast
            I took out this line from config.g:

            M574 Z1 S1 P"zstop" ; configure switch-type (e.g. microswitch) endstop for low end on Z via pin zstop

            So to calibrate offset I need to extend the probe with the M280 P0 S10 and watch when the probe touches the bed and then write the value of Z into config?
            Sorry, this offset thing is a bit unclear to me.

            Creality Ender 3 | BIGTREETECH E3 RRF V1.1 Wifi | BLTouch | RepRap 3.3.0_11

            undefined 1 Reply Last reply 28 Dec 2021, 14:26 Reply Quote 0
            • undefined
              Gixxerfast @re_tour
              last edited by 28 Dec 2021, 14:26

              @re_tour No, you home z and then you try to lower it to zero. If it's not at zero. you lower it some more manually until "the paper thing". Then you see what actual offset yo have by looking at the z coordinate in, for example, DWC. Then adjust your z offset value in G31 using this value.

              Be careful here, it's the other way around the way many thinks of this. A large offset will try to move the nozzle closer to the bed and a small will keep it away.

              Anyhow, I'm not very good at this so there is probably a write up about this in the duet documentation.

              Voron V2.4 (#1317) with Duet 3 Mini5+ Wifi and 1LC v1.1 Toolboard
              Voron V0.1 (#637) with Duet 3 Mini 5+ Wifi and 1LC v1.2 Toolboard
              Ender 3 Pro with BTT SKR-2 + RRF

              undefined 1 Reply Last reply 28 Dec 2021, 14:38 Reply Quote 1
              • undefined
                re_tour @Gixxerfast
                last edited by re_tour 28 Dec 2021, 14:38

                @gixxerfast Gotcha.

                Okay so now I set the offset in config.g to this:

                G31 P500 X117.5 Y117.5 Z5 ; set Z probe trigger value, offset and trigger height

                Then I started lowering the nozzle to do the paper scraper test thingy. Right now I think that the height of the nozzle is optimal. On the dashboard the value of Z at this time is 1.45

                So now I have to add that or subtract that from the offset which I wrote in config.g?

                Creality Ender 3 | BIGTREETECH E3 RRF V1.1 Wifi | BLTouch | RepRap 3.3.0_11

                undefined 2 Replies Last reply 28 Dec 2021, 14:44 Reply Quote 0
                • undefined
                  Gixxerfast @re_tour
                  last edited by 28 Dec 2021, 14:44

                  @re_tour Try adding it 🙂 (I always mess upp here). Just be close to the breaker

                  Voron V2.4 (#1317) with Duet 3 Mini5+ Wifi and 1LC v1.1 Toolboard
                  Voron V0.1 (#637) with Duet 3 Mini 5+ Wifi and 1LC v1.2 Toolboard
                  Ender 3 Pro with BTT SKR-2 + RRF

                  1 Reply Last reply Reply Quote 1
                  • undefined
                    Gixxerfast @re_tour
                    last edited by 28 Dec 2021, 14:46

                    @re_tour Then again my offset is Z4.370 and I think my probe is as close to the bed as it could really be

                    Voron V2.4 (#1317) with Duet 3 Mini5+ Wifi and 1LC v1.1 Toolboard
                    Voron V0.1 (#637) with Duet 3 Mini 5+ Wifi and 1LC v1.2 Toolboard
                    Ender 3 Pro with BTT SKR-2 + RRF

                    undefined 1 Reply Last reply 28 Dec 2021, 14:47 Reply Quote 1
                    • undefined
                      re_tour @Gixxerfast
                      last edited by 28 Dec 2021, 14:47

                      @gixxerfast Stupid question I know, but how will I know that my offset is correct?😁

                      Creality Ender 3 | BIGTREETECH E3 RRF V1.1 Wifi | BLTouch | RepRap 3.3.0_11

                      undefined 1 Reply Last reply 28 Dec 2021, 14:50 Reply Quote 0
                      • undefined
                        Gixxerfast @re_tour
                        last edited by 28 Dec 2021, 14:50

                        @re_tour Same way, just lower slowly to zero and see if your paper feels right.

                        Then when printing you will probably see that you're to close and you will want to lift it a bit. But all do it differently I think. I just go for a lot of paper friction, it's easier to adjust every corner.

                        Also, on the Ender. Don't put too much work into this cause you will do the bed screws anyway with the paper method I guess. Then when it's fairly flat (ish) you'll do a bed mesh.

                        Voron V2.4 (#1317) with Duet 3 Mini5+ Wifi and 1LC v1.1 Toolboard
                        Voron V0.1 (#637) with Duet 3 Mini 5+ Wifi and 1LC v1.2 Toolboard
                        Ender 3 Pro with BTT SKR-2 + RRF

                        undefined 1 Reply Last reply 28 Dec 2021, 14:52 Reply Quote 1
                        • undefined
                          re_tour @Gixxerfast
                          last edited by 28 Dec 2021, 14:52

                          @gixxerfast Wait, so if I set up the offset correctly, how do I get from here to be able to do the bed mesh?

                          Creality Ender 3 | BIGTREETECH E3 RRF V1.1 Wifi | BLTouch | RepRap 3.3.0_11

                          undefined undefined 2 Replies Last reply 28 Dec 2021, 14:55 Reply Quote 0
                          • undefined
                            Gixxerfast @re_tour
                            last edited by Gixxerfast 28 Dec 2021, 14:55

                            @re_tour
                            You have something like this in your config.g:

                            ;mesh_min: 30, 15
                            ;mesh_max: 190, 220
                            ;probe_count: 5
                            M557 X30:190 Y15:220 P5 ; define mesh grid

                            Then you have a file called mesh.g in your /sys directory with something like this in it:

                            G29 S2
                            ; move to the center of the mesh with the PROBE (mind affset in Y is 25 above noozle)
                            G90
                            var xoffset = 37.1
                            var yoffset = 9.25
                            var xpos = {110 - var.xoffset}
                            var ypos = {117.5 - var.yoffset}
                            G1 X{var.xpos} Y{var.ypos} Z15 F6000
                            echo "Setting Probe Offset now"
                            G30 K0
                            G1 Z15 F3000
                            G29 S0

                            The offsets of course depends on where you have your probe mounted.

                            Voron V2.4 (#1317) with Duet 3 Mini5+ Wifi and 1LC v1.1 Toolboard
                            Voron V0.1 (#637) with Duet 3 Mini 5+ Wifi and 1LC v1.2 Toolboard
                            Ender 3 Pro with BTT SKR-2 + RRF

                            undefined 1 Reply Last reply 28 Dec 2021, 15:00 Reply Quote 1
                            • undefined
                              Stephen6309 @re_tour
                              last edited by 28 Dec 2021, 14:58

                              @re_tour Home all, then mesh.

                              G28
                              G29

                              or

                              G28
                              G32 ; call bed.g

                              In bedg.g I have:

                              ; bed.g
                              ; called to perform automatic bed compensation via G32
                              M561 ; clear any bed transform
                              if !move.axes[0].homed || !move.axes[1].homed || !move.axes[2].homed
                              G28
                              M290 R0 S0 ; clear baby stepping
                              G29 S1 ; load heightmap.csv
                              if result > 1 ; if no heightmap.csv, make one
                              G29 S0
                              undefined 1 Reply Last reply 28 Dec 2021, 15:03 Reply Quote 0
                              • undefined
                                re_tour @Gixxerfast
                                last edited by 28 Dec 2021, 15:00

                                @gixxerfast
                                Okay, looks like subtraction is the way to go when calibrating offset 😁
                                Offset is now correct and set to Z3.55.

                                the part you mentioned in config.g looks like this for me:

                                ; Z-Probe
                                M950 S0 C"servo0" ; create servo pin 0 for BLTouch
                                M558 P9 C"^probe" H5 F300:120 A3 T6000 ; set Z probe type to bltouch and the dive height + speeds,the F300:120 first speed 300 second 120
                                G31 P500 X117.5 Y117.5 Z3.55 ; set Z probe trigger value, offset and trigger height
                                M557 X15:215 Y15:195 S20 ; define mesh grid

                                But, I don't have a mesh.g in my sys. Do I have to make that for myself or it will autamatically be generated once I run the process?

                                Creality Ender 3 | BIGTREETECH E3 RRF V1.1 Wifi | BLTouch | RepRap 3.3.0_11

                                undefined 2 Replies Last reply 28 Dec 2021, 15:03 Reply Quote 0
                                • undefined
                                  re_tour @Stephen6309
                                  last edited by 28 Dec 2021, 15:03

                                  @stephen6309 I have this in bed.g:

                                  ; bed.g
                                  ; called to perform automatic bed compensation via G32
                                  ;
                                  ; generated by RepRapFirmware Configuration Tool v3.3.1-LPC-STM32+2 on Tue Dec 28 2021 01:07:55 GMT+0100 (közép-európai téli idő)
                                  M561 ; clear any bed transform
                                  G29 ; probe the bed and enable compensation

                                  Creality Ender 3 | BIGTREETECH E3 RRF V1.1 Wifi | BLTouch | RepRap 3.3.0_11

                                  undefined 1 Reply Last reply 28 Dec 2021, 15:15 Reply Quote 0
                                  • undefined
                                    Gixxerfast @re_tour
                                    last edited by 28 Dec 2021, 15:03

                                    @re_tour Great!! I always get that the other way around.

                                    If you're happy with your mesh grid go for it

                                    You will have to make the file yourself.

                                    Voron V2.4 (#1317) with Duet 3 Mini5+ Wifi and 1LC v1.1 Toolboard
                                    Voron V0.1 (#637) with Duet 3 Mini 5+ Wifi and 1LC v1.2 Toolboard
                                    Ender 3 Pro with BTT SKR-2 + RRF

                                    1 Reply Last reply Reply Quote 1
                                    • undefined
                                      Gixxerfast @re_tour
                                      last edited by 28 Dec 2021, 15:06

                                      @re_tour G32 and bed.g is for gantry/bed leveling. G29 and mesh.g is for the bed mesh.

                                      In earlier vesrions of RRF I think mesh-g didn't exist so therefore a lot of people still uses bed.g with the G32.

                                      Anyhow, the Ender can't level gantry or bed automatically since it only has one z-motor

                                      Voron V2.4 (#1317) with Duet 3 Mini5+ Wifi and 1LC v1.1 Toolboard
                                      Voron V0.1 (#637) with Duet 3 Mini 5+ Wifi and 1LC v1.2 Toolboard
                                      Ender 3 Pro with BTT SKR-2 + RRF

                                      undefined 1 Reply Last reply 28 Dec 2021, 15:09 Reply Quote 1
                                      • undefined
                                        re_tour @Gixxerfast
                                        last edited by 28 Dec 2021, 15:09

                                        @gixxerfast Oh right, so I can only use the bed mesh anyways.

                                        Okay so I modified the config.g a little bit:

                                        M557 X30:190 Y30:190 P5 ; define mesh grid

                                        and copied your mesh.g, in which I presume I'll have to measure the distances with a ruler or something?

                                        Creality Ender 3 | BIGTREETECH E3 RRF V1.1 Wifi | BLTouch | RepRap 3.3.0_11

                                        undefined 1 Reply Last reply 28 Dec 2021, 15:19 Reply Quote 0
                                        • undefined
                                          Stephen6309 @re_tour
                                          last edited by 28 Dec 2021, 15:15

                                          @re_tour That will work fine. I have the if statements make sure it's homed and load the height map. Also, I clear the baby stepping, since I update a macro I call to set the Z offset.

                                          1 Reply Last reply Reply Quote 0
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