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    New IR z probe issues

    Scheduled Pinned Locked Moved
    IR Height Sensor
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    • Phaedruxundefined
      Phaedrux Moderator
      last edited by

      Well the IR sensor should be a good choice, I'm just not sure what's really going on. Can you provide some more details on the setup as it is now so we can figure out if it's a configuration issues, or an issue with the probe itself. We'll try and cover our bases first.

      Post your config.g as it is right now. Confirm you're running fw 3.1.1 by sending M115. Also send M98 P"config.g" and post the results.

      Post a photo of your probe as mounted and a close up of it. Also maybe the wiring at the board.

      Z-Bot CoreXY Build | Thingiverse Profile

      agent0810undefined 1 Reply Last reply Reply Quote 0
      • agent0810undefined
        agent0810 @Phaedrux
        last edited by

        ![0_1595371525574_B5BF8F32-97A5-4454-A1BB-D0C398173C08.heic](Uploading 100%) @Phaedrux

        M115
        FIRMWARE_NAME: RepRapFirmware for Duet 2 WiFi/Ethernet FIRMWARE_VERSION: 3.1.1 ELECTRONICS: Duet WiFi 1.02 or later FIRMWARE_DATE: 2020-05-19b2

        M98 P"config.g"
        HTTP is enabled on port 80
        FTP is enabled on port 21
        TELNET is enabled on port 23
        Warning: Heater 0 appears to be over-powered. If left on at full power, its temperature is predicted to reach 365C
        Warning: Heater 0 appears to be over-powered. If left on at full power, its temperature is predicted to reach 209C

        ; Configuration file for Duet WiFi (firmware version 3)
        ; executed by the firmware on start-up
        ;
        ; generated by RepRapFirmware Configuration Tool v3.1.3 on Sun Jul 05 2020 20:32:26 GMT-0500 (Central Daylight Time)

        ; General preferences
        G90 ; send absolute coordinates...
        M83 ; ...but relative extruder moves
        M550 P"Schaal3DPrinter" ; set printer name

        ; Network
        M552 S1 ; enable network
        M586 P0 S1 ; enable HTTP
        M586 P1 S1 ; enable FTP
        M586 P2 S1 ; enable Telnet

        ; Drives
        M569 P0 S0 ; physical drive 0 goes forwards
        M569 P1 S0 ; physical drive 1 goes forwards
        M569 P2 S0 ; physical drive 2 goes forwards
        M569 P3 S0 ; physical drive 3 goes forwards
        M584 X0 Y1 Z2 E3 ; set drive mapping
        M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation
        M92 X80.00 Y80.00 Z800.00 E102.30 ; set steps per mm
        M566 X900.00 Y900.00 Z12.00 E120.00 ; set maximum instantaneous speed changes (mm/min)
        M203 X6000.00 Y6000.00 Z180.00 E1200.00 ; set maximum speeds (mm/min)
        M201 X500.00 Y500.00 Z20.00 E250.00 ; set accelerations (mm/s^2)
        M906 X800 Y800 Z800 E800 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 X225 Y225 Z300 S0 ; set axis maxima

        ; Endstops
        M574 X2 S1 P"xstop" ; configure active-high endstop for low end on X via pin xstop
        M574 Y2 S1 P"ystop" ; configure active-high endstop for low end on Y via pin ystop
        M574 Z1 S1 P"zstop" ; configure active-high endstop for high end on Z via pin zstop

        ; Z-Probe
        M558 P1 C"^zprobe.in" H5 F120 T6000 ; set Z probe type to unmodulated and the dive height + speeds
        G31 P500 X0 Y0 Z2.5 ; 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 B4138 ; configure sensor 0 as thermistor on pin bedtemp
        M950 H0 C"bedheat" T0 ; create bed heater output on bedheat and map it to sensor 0
        M307 H0 B1 S1.00 ; enable 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
        M308 S1 P"e0temp" Y"thermistor" T100000 B4138 ; 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 S1.00 ; disable bang-bang mode for heater and set PWM limit

        ; Fans
        M950 F0 C"fan0" Q500 ; create fan 0 on pin fan0 and set its frequency
        M106 P0 S0 H-1 ; set fan 0 value. Thermostatic control is turned off
        M950 F1 C"fan1" Q500 ; create fan 1 on pin fan1 and set its frequency
        M106 P1 S1 H1 T45 ; set fan 1 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

        ; Miscellaneous
        M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss
        M501![0_1595371433780_B5BF8F32-97A5-4454-A1BB-D0C398173C08.heic]

        B5BF8F32-97A5-4454-A1BB-D0C398173C08.jpg

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        • Phaedruxundefined
          Phaedrux Moderator
          last edited by

          That mount seems to put it at a bit of an angle?

          Z-Bot CoreXY Build | Thingiverse Profile

          agent0810undefined 1 Reply Last reply Reply Quote 0
          • agent0810undefined
            agent0810 @Phaedrux
            last edited by

            @Phaedrux

            yea the mount isnt the best but the best i can find right now. ive stood there and pushed it level and made sure it is. i make sure it is for tests, but same results. right now when i home/or print it runs the nozzle on the glass bed so nothing comes out.

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

              Your trigger height in G31 is still the default 2.5. Your measured amount was closer to 1.7ish, so you need to update that. The trigger height would be more consistent if the mount was improved.

              It is triggering now though right?

              https://duet3d.dozuki.com/Wiki/Test_and_calibrate_the_Z_probe

              Z-Bot CoreXY Build | Thingiverse Profile

              agent0810undefined 1 Reply Last reply Reply Quote 0
              • agent0810undefined
                agent0810 @Phaedrux
                last edited by

                @Phaedrux

                so when i do home all it goes up to the nozzle then back down a bit, then i do the G30 S-1 and it goes up to almost where i need it to be, so close. but still needs to go up a bit more. i have gone through the page alot and changed the offset and trigger heights with no luck. i tried at 1.7, 5, and now im at 0, all put it at the same place.
                here is my config currently

                ; Configuration file for Duet WiFi (firmware version 3)
                ; executed by the firmware on start-up
                ;
                ; generated by RepRapFirmware Configuration Tool v3.1.3 on Sun Jul 05 2020 20:32:26 GMT-0500 (Central Daylight Time)

                ; General preferences
                G90 ; send absolute coordinates...
                M83 ; ...but relative extruder moves
                M550 P"Schaal3DPrinter" ; set printer name

                ; Network
                M552 S1 ; enable network
                M586 P0 S1 ; enable HTTP
                M586 P1 S1 ; enable FTP
                M586 P2 S1 ; enable Telnet

                ; Drives
                M569 P0 S0 ; physical drive 0 goes forwards
                M569 P1 S0 ; physical drive 1 goes forwards
                M569 P2 S0 ; physical drive 2 goes forwards
                M569 P3 S0 ; physical drive 3 goes forwards
                M584 X0 Y1 Z2 E3 ; set drive mapping
                M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation
                M92 X80.00 Y80.00 Z800.00 E102.30 ; set steps per mm
                M566 X900.00 Y900.00 Z12.00 E120.00 ; set maximum instantaneous speed changes (mm/min)
                M203 X6000.00 Y6000.00 Z180.00 E1200.00 ; set maximum speeds (mm/min)
                M201 X500.00 Y500.00 Z20.00 E250.00 ; set accelerations (mm/s^2)
                M906 X800 Y800 Z800 E800 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 X225 Y225 Z300 S0 ; set axis maxima

                ; Endstops
                M574 X2 S1 P"xstop" ; configure active-high endstop for low end on X via pin xstop
                M574 Y2 S1 P"ystop" ; configure active-high endstop for low end on Y via pin ystop
                M574 Z1 S1 P"zstop" ; configure active-high endstop for high end on Z via pin zstop

                ; Z-Probe
                M558 P1 C"zprobe.in" H5 F120 T6000 ; set Z probe type to unmodulated and the dive height + speeds
                G31 P500 X50 Y0 Z0.005 ; 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 B4138 ; configure sensor 0 as thermistor on pin bedtemp
                M950 H0 C"bedheat" T0 ; create bed heater output on bedheat and map it to sensor 0
                M307 H0 B1 S1.00 ; enable 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
                M308 S1 P"e0temp" Y"thermistor" T100000 B4138 ; 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 S1.00 ; disable bang-bang mode for heater and set PWM limit

                ; Fans
                M950 F0 C"fan0" Q500 ; create fan 0 on pin fan0 and set its frequency
                M106 P0 S0 H-1 ; set fan 0 value. Thermostatic control is turned off
                M950 F1 C"fan1" Q500 ; create fan 1 on pin fan1 and set its frequency
                M106 P1 S1 H1 T45 ; set fan 1 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

                ; Miscellaneous
                M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss
                M501

                Phaedruxundefined 1 Reply Last reply Reply Quote 0
                • Phaedruxundefined
                  Phaedrux Moderator @agent0810
                  last edited by

                  @agent0810 said in New IR z probe issues:

                  so when i do home all it goes up to the nozzle then back down a bit, then i do the G30 S-1 and it goes up to almost where i need it to be

                  Sorry this doesn't make any sense to me.

                  Are you following the instructions on jogging the nozzle to touch the bed, sending G92 Z0, raising the nozzle a bit and then sending G30 S-1? That should give you a trigger height. You then put that trigger height value into the G31 Z. Then after rebooting and homing you should be able to have Z0 just touch the bed.

                  Z-Bot CoreXY Build | Thingiverse Profile

                  agent0810undefined 1 Reply Last reply Reply Quote 0
                  • agent0810undefined
                    agent0810 @Phaedrux
                    last edited by agent0810

                    @Phaedrux

                    Doing everything you say there, except instead of raising the nozzle i am lowering the bed. that is what has me confused, from everything im doing i feel like i should be getting the results i want.\

                    and to be clear, what i put in G31 Z is the output on the console right?

                    thanks again

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                    • agent0810undefined
                      agent0810
                      last edited by

                      and to be clear, what i put in G31 Z is the output on the console right? so i would put in 1.501 for this?

                      7/21/2020, 10:55:50 PM G30 S-1
                      Stopped at height 1.501 mm

                      droftartsundefined 1 Reply Last reply Reply Quote 0
                      • droftartsundefined
                        droftarts administrators @agent0810
                        last edited by

                        @agent0810 said in New IR z probe issues:

                        and to be clear, what i put in G31 Z is the output on the console right? so i would put in 1.501 for this?

                        7/21/2020, 10:55:50 PM G30 S-1
                        Stopped at height 1.501 mm

                        Yes, that's correct. You can send G31 Z1.501 in the console, then send G31 to check it is set, eg my G31 response is:

                        G31
                        Z probe 0: current reading 0, threshold 500, trigger height 1.250, offsets X20.0 Y0.0
                        

                        Test that the probe is functioning correctly by homing Z, then move Z to 0 and check the nozzle is just touching the bed. Then modify your G31 line in config.g, so that the new setting persists after a reset. Change G31 line in config.g to:

                         G31 P500 X0 Y0 Z1.501 ; set Z probe trigger value, offset and trigger height
                        

                        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

                        agent0810undefined 2 Replies Last reply Reply Quote 0
                        • agent0810undefined
                          agent0810 @droftarts
                          last edited by

                          @droftarts thank you!

                          did as you asked and it is still a little to high, its not pushing the filament onto the glass bed.

                          droftartsundefined 1 Reply Last reply Reply Quote 0
                          • agent0810undefined
                            agent0810 @droftarts
                            last edited by

                            @droftarts

                            i have it zeroed in the middle of the bed. this is what i see on my web interface, that normal?

                            a507065b-6f9b-4416-a7d4-7e2aee8e3164-image.png

                            droftartsundefined 1 Reply Last reply Reply Quote 0
                            • droftartsundefined
                              droftarts administrators @agent0810
                              last edited by

                              @agent0810 Adjust with 'Z babystepping' (on the Status tab of DWC), until you're happy with how the first layer is going down. Presumably you'll need raise the bed a little, so this may be -0.1mm of babystepping, so you can reduce the G31 Z height by 0.1mm. If you do this, don't forget to reset babystepping (with M290 R0 S0) if you don't reset the printer.

                              Have you calibrated your extruder, though? If you haven't, it may be underextruding, which will also make it look like the nozzle is too far off the bed. So get that right, too.

                              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

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                              • droftartsundefined
                                droftarts administrators @agent0810
                                last edited by

                                @agent0810 said in New IR z probe issues:

                                i have it zeroed in the middle of the bed. this is what i see on my web interface, that normal?

                                What do you mean, zeroed? If you want X0 Y0 to be in the middle of the bed, you need to adjust M208. At the moment yours is set to:

                                ; Axis Limits
                                M208 X0 Y0 Z0 S1 ; set axis minima
                                M208 X225 Y225 Z300 S0 ; set axis maxima
                                

                                So it's not surprising that, with the nozzle in the middle of the bed, X and Y are 120. To get X0 Y0 to be in the middle, you'll want something like:

                                ; Axis Limits
                                M208 X-120 Y-120 Z0 S1 ; set axis minima
                                M208 X120 Y120 Z300 S0 ; set axis maxima
                                

                                See https://duet3d.dozuki.com/Wiki/Centering_the_bed_or_setting_the_bed_origin

                                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

                                agent0810undefined 2 Replies Last reply Reply Quote 0
                                • agent0810undefined
                                  agent0810 @droftarts
                                  last edited by

                                  @droftarts

                                  started printing and had to z babyset +.05 to 1mm to get it where i need it.
                                  Current Offset: 1.00 mm

                                  what do i need to do to keep it here?

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                                  • agent0810undefined
                                    agent0810 @droftarts
                                    last edited by

                                    @droftarts
                                    print came out amazing, just need to have it default to the 1mm babystep.

                                    44E38A03-CEC9-4B63-89D6-7C2943C24C33.jpg

                                    fcwiltundefined 1 Reply Last reply Reply Quote 0
                                    • fcwiltundefined
                                      fcwilt @agent0810
                                      last edited by fcwilt

                                      @agent0810 said in New IR z probe issues:

                                      @droftarts
                                      print came out amazing, just need to have it default to the 1mm babystep.

                                      While you can change the baby step setting in code you can also adjust the the trigger height setting of your Z probe to achieve the same thing - which is what I do.

                                      If you used baby stepping to move the nozzle closer to the bed increase the trigger height setting by that amount.

                                      If you used baby stepping to move the nozzle away to the bed decrease the trigger height setting by that amount.

                                      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

                                      agent0810undefined 1 Reply Last reply Reply Quote 0
                                      • agent0810undefined
                                        agent0810 @fcwilt
                                        last edited by

                                        @fcwilt
                                        so if im currently at
                                        G31 P500 X50 Y0 Z1.501

                                        and my current offset was 1 mm that i had to move the nozzle away from the bed. i need to decrease the Z from 1.501 to .501?

                                        so

                                        G31 P500 X50 Y0 Z.501?
                                        i am fairly positive that i have tried that and it didnt work 😞

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

                                          A larger G31 value results in the nozzle being closer to the bed.

                                          Z-Bot CoreXY Build | Thingiverse Profile

                                          Phaedruxundefined 1 Reply Last reply Reply Quote 0
                                          • fcwiltundefined
                                            fcwilt @agent0810
                                            last edited by fcwilt

                                            @agent0810 said in New IR z probe issues:

                                            @fcwilt
                                            so if im currently at
                                            G31 P500 X50 Y0 Z1.501

                                            and my current offset was 1 mm that i had to move the nozzle away from the bed. i need to decrease the Z from 1.501 to .501?

                                            so

                                            G31 P500 X50 Y0 Z.501?
                                            i am fairly positive that i have tried that and it didnt work 😞

                                            If you use baby stepping to move AWAY from the bed then the trigger height setting must be decreased.

                                            If you're numbers are correct then that value is correct.

                                            You can always determine the trigger height setting through trial and error, adjusting it up or down with G31, setting the Z=0 datum with G30 and repeating the process until moving to Z=0 has the nozzle just touching the bed.

                                            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

                                            agent0810undefined 2 Replies Last reply Reply Quote 0
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