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    2000 degrees after restoring config

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    • craigrezac7undefined
      craigrezac7
      last edited by

      Hello,

      I had my printer working but then randomly I couldn't get it to connect to the web page but would connect to wifi. I started completely fresh and redid everything. I have everything working except the Z axis keeps homing in the wrong direction (ender 5) and now the bed and hotend both show 2000 degrees. Both ohm out as they should, bed ohms at 100k (ac heater and mosquito with high temp thermistor). I am not sure what to try, everything is connected the same way as it was when the printer was previously working.

      Here is what my config file looks like:

      ; 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 forwards
      M569 P1 S0 ; physical drive 1 goes forwards
      M569 P2 S0 ; physical drive 2 goes forwards
      M569 P3 S1 ; 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 Z400.00 E830.00 ; 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 X230 Y230 Z300 S0 ; set axis maxima

      ; Endstops
      M574 X1 S1 P"xstop" ; configure active-high endstop for low end on X via pin xstop
      M574 Y1 S1 P"ystop" ; configure active-high endstop for low end on Y via pin ystop
      M574 Z2 S1 P"!zstop" ; configure active-high endstop for high end on Z via pin !zstop

      ; Z-Probe
      M558 P0 H5 F120 T6000 ; disable Z probe but set dive height, probe speed and travel speed
      M557 X15:215 Y15:215 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
      M143 H0 S175 ; set temperature limit for heater 0 to 175C
      M307 H0 B0 S1.00 ; disable bang-bang mode for the bed heater and set PWM limit
      M140 H0 ; map heated bed to heater 0
      M308 S1 P"e0temp" Y"thermistor" T500000 B4723 C1.19622e-7 ; 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
      M143 H1 S450 ; set temperature limit for heater 1 to 450C
      M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit

      Thank you in advance,
      Craig

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      • Danalundefined
        Danal
        last edited by Danal

        @craigrezac7 said in 2000 degrees after restoring config:

        M308 S0 P"bedtemp" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin bedtemp
        M308 S1 P"e0temp" Y"thermistor" T500000 B4723 C1.19622e-7 ; configure sensor 1 as thermistor on pin e0temp

        I don't know that your T and B and C are or aren't correct... I can say that I have E3D hot ends, and have an identical thermistor on the bed, and this works for me:

        ; Temperature sensors
        M308 S0 P"0.temp0" Y"thermistor" T100000 B3950 A"Bed" 
        M308 S1 P"1.temp0" Y"thermistor" T100000 B3950 A"HE1"
        M308 S2 P"1.temp1" Y"thermistor" T100000 B3950 A"HE2"
        M308 S3 P"2.temp0" Y"thermistor" T100000 B3950 A"HE3"
        M308 S4 P"2.temp1" Y"thermistor" T100000 B3950 A"HE4"
        

        Also, iIf you unplug a sensor (thermistor) what does it show? If I recall, 2000 is the "magic number" that indicates a short, so what does that input read with nothing plugged in? If it switches to -273.x, that may indicate a wiring problem.

        Delta / Kossel printer fanatic

        craigrezac7undefined 1 Reply Last reply Reply Quote 0
        • dc42undefined
          dc42 administrators
          last edited by

          What version of RepRapFirmware is your board running? Send M115 to find out.

          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

          craigrezac7undefined 1 Reply Last reply Reply Quote 0
          • craigrezac7undefined
            craigrezac7 @dc42
            last edited by

            @dc42 Duet 2 Firmware version 2.04, Wifi 1.02 it says.

            1 Reply Last reply Reply Quote 0
            • craigrezac7undefined
              craigrezac7 @Danal
              last edited by

              @Danal It reads 2000 no matter what I do. I can plug in a different thermistor all together and still get a short.

              1 Reply Last reply Reply Quote 0
              • Danalundefined
                Danal
                last edited by

                Try an M308 for your hot end, try one with your pin definition (C) and my thermistor constants.

                Delta / Kossel printer fanatic

                craigrezac7undefined 1 Reply Last reply Reply Quote 0
                • craigrezac7undefined
                  craigrezac7 @Danal
                  last edited by

                  @Danal I looked at the example M308 but I guess I don't understand how I would type it out correctly.

                  1 Reply Last reply Reply Quote 0
                  • craigrezac7undefined
                    craigrezac7
                    last edited by

                    I just updated to 3.0 and now it is all working.. strange.. Thank you for all the ideas though.

                    1 Reply Last reply Reply Quote 0
                    • craigrezac7undefined
                      craigrezac7
                      last edited by

                      New issue.. It says my bed is heating much slower than expected. 1.6c/sec. It seems to me like its heating fast, how does that get adjusted?

                      Phaedruxundefined 1 Reply Last reply Reply Quote 0
                      • Phaedruxundefined
                        Phaedrux Moderator @craigrezac7
                        last edited by

                        @craigrezac7 said in 2000 degrees after restoring config:

                        New issue.. It says my bed is heating much slower than expected. 1.6c/sec. It seems to me like its heating fast, how does that get adjusted?

                        Perform a PID tuning on your bed heater.

                        Z-Bot CoreXY Build | Thingiverse Profile

                        1 Reply Last reply Reply Quote 0
                        • Danalundefined
                          Danal
                          last edited by

                          @craigrezac7 said in 2000 degrees after restoring config:

                          M308 S1 P"e0temp" Y"thermistor" T500000 B4723 C1.19622e-7 ; configure sensor 1 as thermistor on pin e0temp

                          @Danal said in 2000 degrees after restoring config:

                          M308 S1 P"1.temp0" Y"thermistor" T100000 B3950 A"HE1"
                          Suggested thing to try:

                          M308 S1 P"e0temp" Y"thermistor" T100000 B3950

                          Delta / Kossel printer fanatic

                          1 Reply Last reply Reply Quote 0
                          • Danalundefined
                            Danal
                            last edited by

                            Just because it doesn't error... doesn't mean it is reading correctly...

                            Does your hotend read in the low 20s C when at room temperature?

                            Delta / Kossel printer fanatic

                            craigrezac7undefined 1 Reply Last reply Reply Quote 0
                            • craigrezac7undefined
                              craigrezac7 @Danal
                              last edited by

                              @Danal Yes, they are both where they should be now. Like I said, they used to work then all of a sudden decided not to. I did do PID tunes a bit ago. I will try heating again in a bit. I have 7 other FDM printers but all Marlin so this is new to me even though I've had it a few months. Thank you for the help thus far. I just have to figure out what to change to get the bed to home in the correct direction now.

                              dc42undefined droftartsundefined 2 Replies Last reply Reply Quote 0
                              • dc42undefined
                                dc42 administrators @craigrezac7
                                last edited by

                                @craigrezac7 said in 2000 degrees after restoring config:

                                I just have to figure out what to change to get the bed to home in the correct direction now.

                                This may help https://duet3d.dozuki.com/Wiki/ConfiguringRepRapFirmwareCartesianPrinter#Section_Homing_files.

                                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
                                • droftartsundefined
                                  droftarts administrators @craigrezac7
                                  last edited by

                                  @craigrezac7 I think the problem has been caused by having RRF 2.04 on the Duet, but creating a config.g for RRF 3 (there are a lot of differences!). Now you have updated the board to RRF 3, it's working. As you started with a blank SD card, you've lost any settings that you had before, unless you kept a copy. So you're effectively setting up this printer as a new machine. Follow the commissioning guide: https://duet3d.dozuki.com/Wiki/Step_by_step_guide#Section_Commissioning_tests

                                  For the Z endstop, you have configured:

                                   M574 Z2 S1 P"!zstop" ; configure active-high endstop for high end on Z via pin !zstop
                                  

                                  You've inverted the Z endstop with the "!" character, so it may be reporting that the Z endstop is triggered when it is not. This means when you send a homing move, it's seeing the endstop as triggered, and is trying to move away from it. Send M119 to see the endstop status, and press the endstop. It's also set to be at the top, ie with nozzle furthest from the bed.

                                  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

                                  craigrezac7undefined 1 Reply Last reply Reply Quote 0
                                  • craigrezac7undefined
                                    craigrezac7 @droftarts
                                    last edited by

                                    @droftarts Endstops - X: at min stop, Y: at min stop, Z: not stopped, Z probe: at min stop - Thats what I get with M119. When I go to home Z, it just keeps lowering the bed until I hit stop.

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

                                      Post your homez/homeall

                                      Z-Bot CoreXY Build | Thingiverse Profile

                                      craigrezac7undefined 1 Reply Last reply Reply Quote 0
                                      • craigrezac7undefined
                                        craigrezac7 @Phaedrux
                                        last edited by

                                        @Phaedrux ; homeall.g
                                        ; called to home all axes
                                        ;
                                        ; generated by RepRapFirmware Configuration Tool v2.1.8 on Tue Feb 18 2020 11:10:45 GMT-0500 (Eastern Standard Time)
                                        G91 ; relative positioning
                                        G1 H2 Z5 F6000 ; lift Z relative to current position
                                        G1 H1 X-235 Y-235 F1800 ; move quickly to X and Y axis endstops and stop there (first pass)
                                        G1 H2 X5 Y5 F6000 ; go back a few mm
                                        G1 H1 X-235 Y-235 F360 ; move slowly to X and Y axis endstops once more (second pass)
                                        G1 H1 Z305 F360 ; move Z up stopping at the endstop
                                        G90 ; absolute positioning
                                        G92 Z300 ; set Z position to axis maximum (you may want to adjust this)

                                        ; homez.g
                                        ; called to home the Z axis
                                        ;
                                        ; generated by RepRapFirmware Configuration Tool v2.1.8 on Tue Feb 18 2020 11:10:45 GMT-0500 (Eastern Standard Time)
                                        G91 ; relative positioning
                                        G1 H2 Z5 F6000 ; lift Z relative to current position
                                        G1 H1 Z305 F1800 ; move Z up until the endstop is triggered
                                        G92 Z300 ; set Z position to axis maximum (you may want to adjust this)

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

                                          Is your z endstop at the high end of travel? IE farthest away from the nozzle?

                                          When you jog the Z axis does + take it away from the nozzle and - towards the nozzle?

                                          Z-Bot CoreXY Build | Thingiverse Profile

                                          craigrezac7undefined 1 Reply Last reply Reply Quote 0
                                          • craigrezac7undefined
                                            craigrezac7 @Phaedrux
                                            last edited by

                                            @Phaedrux It is on an Ender 5, + and - do work correctly, it just tries to find the limit switch going the wrong way, the bed lowering till I make it stop by pressing the limit switch or hitting stop, instead of raising the bed up and hitting the limit switch.

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