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    Help: Temp Sensors and Homing Issues

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    Tuning and tweaking
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    • 94118undefined
      94118
      last edited by

      Just replaced Hotend heater and Thermistor did Heater auto tune and it was successful with New 24v 40W Heater Cart. and an NTC 3950 Stud Thermistor

      ![alt text](25bd99b3-f082-4f96-bf4f-d83736da1234-image.png image url)

      Features:
      Using 22AWG cable, the copper inside is very thick, it is resistant to current 2A, voltage 300V.
      The nonconductor has a wide range of temperatures, up to 80 centigrade.
      It is not easy to be snapped and convenient to be plugged in and unplugged.
      For convenience, the plug on the other side is integrated , you can use the plug directly.

      Connection description:

      1. Bed wire connect VCC (+ of ramps)
      2. Black wire connect GND (- of ramps)
      3. Green wire connect SIGNAL (s of ramps)

      One set includes:

      1. 1x endstop switch
      2. 1x 3-pin 27.5inch cable

      What is in the package:
      2 set endstop switches for RAMPS 1.4

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      • Phaedruxundefined
        Phaedrux Moderator
        last edited by

        Yes those switches would likely need to be inverted. See my post above.

        What firmware version are you running exactly? Send M115 and post the response.

        Z-Bot CoreXY Build | Thingiverse Profile

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        • 94118undefined
          94118
          last edited by

          console (2).txt Results posted Fixed my Z and Changed my endstops to inverted with the Exclamation Fix Thanks

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          • Phaedruxundefined
            Phaedrux Moderator
            last edited by

            M500: Warning: No M501 command was executed in config.g

            Don't forget to add M501 to the end of config.g or your tuned values won't be loaded at boot.

            Z-Bot CoreXY Build | Thingiverse Profile

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            • 94118undefined
              94118
              last edited by

              Ouickie: Is their a way to disable and enable motors so that i may level my bed with my Boro glass.

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              • Phaedruxundefined
                Phaedrux Moderator
                last edited by

                M84

                https://duet3d.dozuki.com/Wiki/Gcode#Section_M84_Stop_idle_hold

                Z-Bot CoreXY Build | Thingiverse Profile

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                • 94118undefined
                  94118
                  last edited by

                  When homing Z at the end of run Command it is hitting my nozzle causing my bed to tilt a few degrees

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                  • Phaedruxundefined
                    Phaedrux Moderator
                    last edited by

                    Post your homing files.

                    Is it using a probe, or an endstop?

                    If the nozzle is hitting the bed before the endstop is triggered you'll need to move the endstop so that it gets triggered first. If it's hitting the endstop but not stopping you should test the endstop switch to see if it's triggering at all when pressed.

                    Z-Bot CoreXY Build | Thingiverse Profile

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                    • 94118undefined
                      94118
                      last edited by

                      ; homey.g
                      ; called to home the Y axis
                      ;
                      ; generated by RepRapFirmware Configuration Tool v2.1.8 on Thu Feb 20 2020 15:06:37 GMT-0800 (Pacific Standard Time)
                      G91 ; relative positioning
                      G1 H2 Z5 F6000 ; lift Z relative to current position
                      G1 H1 Y215 F1800 ; move quickly to Y axis endstop and stop there (first pass)
                      G1 H2 Y-5 F6000 ; go back a few mm
                      G1 H1 Y215 F360 ; move slowly to Y axis endstop once more (second pass)
                      G1 H2 Z-5 F6000 ; lower Z again
                      G90 ; absolute positioning; homex.g
                      ; called to home the X axis
                      ;
                      ; generated by RepRapFirmware Configuration Tool v2.1.8 on Thu Feb 20 2020 15:06:37 GMT-0800 (Pacific Standard Time)
                      G91 ; relative positioning
                      G1 H2 Z5 F6000 ; lift Z relative to current position
                      G1 H1 X235 F1800 ; move quickly to X axis endstop and stop there (first pass)
                      G1 H2 X5 F6000 ; go back a few mm
                      G1 H1 X235 F360 ; move slowly to X axis endstop once more (second pass)
                      G1 H2 Z-5 F6000 ; lower Z again
                      G90 ; absolute positioning
                      ; homez.g
                      ; called to home the Z axis
                      ;
                      ; generated by RepRapFirmware Configuration Tool v2.1.8 on Thu Feb 20 2020 15:06:37 GMT-0800 (Pacific Standard Time)
                      G91 ; relative positioning
                      G1 H2 Z5 F6000 ; lift Z relative to current position
                      G1 H1 Z205 F1800 ; move Z up until the endstop is triggered
                      G92 Z0 ; set Z position to axis minimum (you may want to adjust this)

                      ; Uncomment the following lines to lift Z after probing
                      ;G91 ; relative positioning
                      ;G1 Z5 F100 ; lift Z relative to current position
                      ;G90 ; absolute positioning

                      Z axis goes a few mm beyond my Z Endstop which forces my endstop to slightly be tilited up

                      https://drive.google.com/open?id=1E3CcR-HoAqUtBcpq_rlf7GUoT6-3kfUs

                      https://drive.google.com/open?id=1DyAeQrRzdj33uJVOVafkc-4hT0_O2bQ1

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

                        And if you hit the endstop with your finger does the status change in the machine specific tab?

                        Z-Bot CoreXY Build | Thingiverse Profile

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                        • 94118undefined
                          94118
                          last edited by

                          Had to issue M84 and manually lower my bed to test trigger my z endstop status states NO when not hit then turns to YES when Hit

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                          • Phaedruxundefined
                            Phaedrux Moderator @94118
                            last edited by

                            @94118 said in Help: Temp Sensors and Homing Issues:

                            G1 H2 Z5 F6000 ; lift Z relative to current position

                            Remove this from homez. Maybe you were already too close to the endstop at the start of homing.

                            If you lower the bed and then home does it move towards the endstop?
                            Try and click it with your finger before the bed hits it. If the endstop doesn't stop it moving, power off the printer to prevent damage.

                            You can also use M913 Z40 to reduce the motor current at the start of homez and then use M913 Z100 to return motor current back to normal at the end. That should also help limit the potential for damage.

                            Z-Bot CoreXY Build | Thingiverse Profile

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                            • 94118undefined
                              94118
                              last edited by

                              That worked: Nice soft Stop at my endstop and adjusted my height down to 200mm was set at 205mm would it be better to just remove the Z movement from X and Y also

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                              • Phaedruxundefined
                                Phaedrux Moderator @94118
                                last edited by

                                @94118 said in Help: Temp Sensors and Homing Issues:

                                would it be better to just remove the Z movement from X and Y also

                                You could since you aren't using a probe or anything that would need to be raised above the bed before movement.

                                Z-Bot CoreXY Build | Thingiverse Profile

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                                • 94118undefined
                                  94118
                                  last edited by

                                  Would i be all good to load filament and try a test print

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                                  • 94118undefined
                                    94118
                                    last edited by

                                    Machine movement controls not responsive i click on the fine movement tabs and it does noting machine is in idle

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                                    • Phaedruxundefined
                                      Phaedrux Moderator
                                      last edited by

                                      So the printer will home properly but then you can't use the jog buttons in DWC?

                                      Z-Bot CoreXY Build | Thingiverse Profile

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                                      • 94118undefined
                                        94118
                                        last edited by

                                        Yes that is correct

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                                        • Phaedruxundefined
                                          Phaedrux Moderator
                                          last edited by

                                          Can you send movement commands in the console?
                                          Do the paneldue move buttons work?

                                          Z-Bot CoreXY Build | Thingiverse Profile

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                                          • 94118undefined
                                            94118
                                            last edited by

                                            No i cannot send commands from console or paneldue

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