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    Motors keeps vibrating but not moving

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    Duet Hardware and wiring
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    • SannyGTundefined
      SannyGT
      last edited by SannyGT

      Hello!

      I tried to play a little bit with the steps per mm, acceleration and it looks that the motor is spinning a most of the time. It is still vibrating but its reduced alot now.

      • I wired them with the color code 'Red, blue, green, black.'

      • The motors work when i reverse them with the Z motor but also vibrating

      • The firmware that i use is Marlin

      • When i send M564 H0 i receive this comment 'Movement outside the bed is not permitted'
        -M906 returned this 'Motor current (mA) - X:1300, Y:1300, Z:1300, E:800:800:800:800:800:800:800:800:800, idle factor 30%'

      • The motor are very quiet, and after some changes with the firmware it vibrates less.

      Motor X and Y still won't move when i press home all so i think that i need to change something in the firmware for that


      config.g

      ; Configuration file for Duet Ethernet (firmware version 1.17 to 1.19)
      ; executed by the firmware on start-up
      ;
      ; generated by RepRapFirmware Configuration Tool on Tue Aug 14 2018 10:50:54 GMT+0100 (GMT Summer Time)

      ; General preferences
      G90 ; Send absolute coordinates...
      M83 ; ...but relative extruder moves
      M665 R135 L312 B130 H360 ; Set delta radius, diagonal rod length, printable radius and homed height
      M666 X0 Y0 Z0 ; Put your endstop adjustments here, or let auto calibration find them

      ; Network
      M550 PDelta ; Set machine name
      M551 P~~~~~~~~~~ ; Set password
      M552 P0.0.0.0 S1 ; Enable network and acquire dynamic address via DHCP
      M586 P0 S1 ; Enable HTTP
      M586 P1 S0 ; Disable FTP
      M586 P2 S0 ; Disable Telnet

      ; Drives
      M569 P0 S1 ; Drive 0 goes forwards
      M569 P1 S1 ; Drive 1 goes forwards
      M569 P2 S1 ; Drive 2 goes forwards
      M569 P3 S1 ; Drive 3 goes forwards
      M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
      M92 X100 Y100 Z100 E100 ; Set steps per mm
      M566 X1200 Y1200 Z1200 E1200 ; Set maximum instantaneous speed changes (mm/min)
      M203 X18000 Y18000 Z18000 E1200 ; Set maximum speeds (mm/min)
      M201 X2400 Y2400 Z2400 E2400 ; Set accelerations (mm/s^2)
      M906 X1300 Y1300 Z1300 E800 I30 ; Set motor currents (mA) and motor idle factor in per cent
      M84 S30 ; Set idle timeout

      ; Axis Limits
      M208 Z0 S1 ; Set minimum Z

      ; Endstops
      M574 X2 Y2 S0 ; Set active low endstops

      ; Z-Probe
      M558 P0 H5 F120 T6000 ; Disable Z probe but set dive height, probe speed and travel speed
      M557 R130 S20 ; Define mesh grid

      ; Heaters
      M305 P0 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 0
      M143 H0 S120 ; Set temperature limit for heater 0 to 120C
      M305 P1 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 1
      M143 H1 S280 ; Set temperature limit for heater 1 to 280C

      ; Fans
      M106 P0 S0.3 I0 F500 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
      M106 P1 S1 I0 F500 H0 T45 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on
      M106 P2 S1 I0 F500 H1 T45 ; Set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned on

      ; Tools
      M563 P0 D0 H1 ; 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 configured


      homedelta.g

      ; homedelta.g
      ; called to home all towers on a delta printer
      ;
      ; generated by RepRapFirmware Configuration Tool on Tue Aug 14 2018 10:50:54 GMT+0100 (GMT Summer Time)
      G91 ; relative positioning
      G1 S1 X365 Y365 Z365 F1800 ; move all towers to the high end stopping at the endstops (first pass)
      G1 X-5 Y-5 Z-5 F1800 S2 ; go down a few mm
      G1 S1 X10 Y10 Z10 F360 ; move all towers up once more (second pass)
      G1 Z-5 F6000 ; move down a few mm so that the nozzle can be centred
      G90 ; absolute positioning
      G1 X0 Y0 F6000 ; move X+Y to the centre

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      • dc42undefined
        dc42 administrators
        last edited by

        1. Try testing the motors individually as described at https://duet3d.dozuki.com/Wiki/ConfiguringRepRapFirmwareDeltaPrinter#Section_Testing_the_motors_individually.

        2. I think the problem may with your endstop configuration. You have this in config.g:

        M574 X2 Y2 S0 ; Set active low endstops

        If your endstops are actually active high (e.g. normally-closed switches), it will think that the carriages are already at the endstops. If that is the case, you need S1 not S0. Also you have left out Z2, which explains why the Z carriage moves.

        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
        • SannyGTundefined
          SannyGT
          last edited by SannyGT

          Thank you for helping

          I managed to stop the vibration by increasing the motor current to 3000ma.
          (P = U * I |12 * 3 = 36W of power.)
          I use the 'Deltarunner glide system' to support the rods of the delta printer https://www.thingiverse.com/thing:2206030
          The pros of this system is that it holds well againts the construction.
          The cons of it is that it creates friction, so my stepper motor needs to work harder. I think that that was one of the problems why my stepper motor kept vibrating.

          Most of the problems are finally solved!

          Thanks!

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

            @sannygt said in Motors keeps vibrating but not moving:

            I managed to stop the vibration by increasing the motor current to 3000ma.

            That doesn't sound right at all, if your motors are only rated at 1.3A, because at 3A they will get extremely hot and burn out quickly - unless you are inadvertently running them at reduced power (M913 command). I suggest you run M906 and M913 without parameters, to check what the motor current really is.

            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
            • SannyGTundefined
              SannyGT
              last edited by SannyGT

              I totally agree that it is not an smart idea to double the amps in a motor that is only rated for 1.3A. Safety is priority number one here.
              (My mom won't be happy at all when she hears the smoke detector in my room.)

              M906: Motor current (mA) - X:3000, Y:3000, Z:3000, E:2000:2000:2000:2000:2000:2000:2000:2000:2000, idle factor 30%

              M913: Motor current % of normal - X:100, Y:100, Z:100, E : 100 : 100 : 100 : 100 : 100 : 100 : 100 : 100 : 100

              I am also afraid that my motor are mabye to small

              • 42x42x34mm
              • Rotor Intertia: 34g.cm2
              • Holding torque: 28N cm
              • Detent Torque: 1.6N cm
              dc42undefined Phaedruxundefined 2 Replies Last reply Reply Quote 0
              • sigxcpuundefined
                sigxcpu
                last edited by

                @sannygt said in Motors keeps vibrating but not moving:

                The firmware that i use is Marlin

                Are you sure?

                1 Reply Last reply Reply Quote 0
                • SannyGTundefined
                  SannyGT
                  last edited by

                  The json file says that it runs marlin

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

                    @sannygt said in Motors keeps vibrating but not moving:

                    I am also afraid that my motor are mabye to small

                    42x42x34mm
                    Rotor Intertia: 34g.cm2
                    Holding torque: 28N cm
                    Detent Torque: 1.6N cm

                    Those motors are OK for a small printer. I have similar motors on my Cartesian printer with 200x200mm bed, rated at 1.33A. I run Y and E at 1000mA , X and Z at 800mA.

                    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
                    • dc42undefined
                      dc42 administrators @SannyGT
                      last edited by

                      @sannygt said in Motors keeps vibrating but not moving:

                      The json file says that it runs marlin

                      I expect it says that the USB input channel is configured for Marlin compatibility, which is normal.

                      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
                      • Phaedruxundefined
                        Phaedrux Moderator @SannyGT
                        last edited by

                        @sannygt I hope you aren't using printed motor mounts, because they may melt at those high currents.

                        I think it's likely you are getting some binding which is requiring so much torque to overcome. I suggest you recheck your mechanical setup and see if you can get things moving more smoothly.

                        Z-Bot CoreXY Build | Thingiverse Profile

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                        • SannyGTundefined
                          SannyGT
                          last edited by SannyGT

                          2_1534463683841_IMG_20180816_122042(1).jpg 1_1534463683841_IMG_20180816_122005.jpg 0_1534463683841_IMG_20180816_122058.jpg

                          Here are some images of my machine, maybe it can help.

                          I was thinking about adding ceramic Grease (fat) on the rods to reduce the friction. Should that work?

                          I have seen that industrial machines like lathes, CNC machines, and robot arms use it a lot. That gave me the idea to use it.

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

                            How hot are the motors getting? if you really are running them at 3A and they are rated for only 1.3A then they will get extremely hot quite quickly. If they don't, then the motor specification must be wrong. You could measure the resistance of a winding using a multimeter and compare it to the value on the data sheet.

                            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
                            • SannyGTundefined
                              SannyGT
                              last edited by SannyGT

                              Hello,

                              Sorry for the inactivity.

                              I managed to get the motors moving on rod Y and Z, only the motor on rod X is still vibrating. I reduced the amps to 1.3A now in the firmware.

                              I do need to borrow a multimeter sinds i only have a industrial voltage meter

                              But the good news is that the problems so far has been reduced

                              T3P3Tonyundefined 1 Reply Last reply Reply Quote 0
                              • T3P3Tonyundefined
                                T3P3Tony administrators @SannyGT
                                last edited by

                                @sannygt try temporarily swapping the motor plugs between a working axis and X to see if the problem moves axis or stays with the existing one. What did you do to solve the issue on the other two axis?

                                www.duet3d.com

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                                • SannyGTundefined
                                  SannyGT
                                  last edited by

                                  I increased the motor current to 1800ma so it receive a bit more power

                                  But the X motor barely moves at 3000ma. and there is barely torque on the X motor when it moves. I think that i am just gonna buy a new stepper motor to replace X motor with a bit more power.

                                  T3P3Tonyundefined 1 Reply Last reply Reply Quote 0
                                  • T3P3Tonyundefined
                                    T3P3Tony administrators @SannyGT
                                    last edited by

                                    @sannygt did you try the test i suggested?

                                    www.duet3d.com

                                    1 Reply Last reply Reply Quote 0
                                    • SannyGTundefined
                                      SannyGT
                                      last edited by

                                      Yes unfortunately there was no result,

                                      The X motor kept vibrating so i guess the motor itself.

                                      T3P3Tonyundefined 1 Reply Last reply Reply Quote 0
                                      • T3P3Tonyundefined
                                        T3P3Tony administrators @SannyGT
                                        last edited by

                                        @sannygt yes sounds like that motor is faulty

                                        www.duet3d.com

                                        1 Reply Last reply Reply Quote 0
                                        • SannyGTundefined
                                          SannyGT
                                          last edited by

                                          Hi @T3P3Tony

                                          I installed some brand new motors to the machines and it is working perfect now. So the problem was the motor itself.

                                          Thanks for the suggestions everyone!

                                          1 Reply Last reply Reply Quote 1
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