Ender 3, Z stepper motor move very slow and sound strange

Dear team Duet
I have installed in my Ender 3 (no pro, no v2) the Duet 3 Mini 5+. I have followed the instructions from your site
https://duet3d.dozuki.com/Guide/Ender+3+Pro+and+Duet+3+Mini+5++Guide+Part+1:+Wiring/87#s258

Everything in the wiring and setup was straight forward and with success.

Homing the Y,X,Z is not a problem I have tested all and is working, my only problem right now is with the Z axis is moving very slow and is doing an strange sound, not loud but not normal as the other two (Y,X)

I have read multiple threads, reinstalled the firmware, change the g-code for the steps and so on, but still there is no change, the Z motor is just very slow when moves. The Y and X move normal, but.

For reference let me explain two use cases and behaviour I have related to the three motors:

Case 1. Turn on the printer and I move the motors using the PanelDue 5i using the "move". Only Z motor move very slow, Y and X are normal in the movement.

Case 2. Same steps as the first case but in this case I am trying to print something using Cura 4.8.. Exported to the Ender using the Duet web panel and start the print. Now the three motors are moving very slow doing this strange sound.

If I turn off the printer and turn on again, the case 1 is repeated. Means only Y and X move normal but Z is very slow.

Here is my Config.g

 Configuration file for Duet 3 Mini 5+ (firmware version 3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.2.3 on Mon May 17 2021 14:10:06 GMT+0200 (Mitteleuropäische Sommerzeit)

; General preferences
G90                                                ; send absolute coordinates...
M83                                                ; ...but relative extruder moves
M550 P"Ender 3 Pro"                                ; 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 P0.0 S0                                       ; physical drive 0.0 goes backwards
M569 P0.1 S0                                       ; physical drive 0.1 goes backwards
M569 P0.2 S1                                       ; physical drive 0.2 goes forwards
M569 P0.3 S0                                       ; physical drive 0.3 goes backwards
M584 X0.0 Y0.1 Z0.2 E0.3                           ; 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 Z24.00 E300.00              ; set maximum instantaneous speed changes (mm/min)
M203 X9000.00 Y9000.00 Z180.00 E6000.00            ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z100.00 E5000.00              ; set accelerations (mm/s^2)
M906 X800 Y800 Z800 E1000 I50                      ; 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"io5.in"                               ; configure active-high endstop for low end on X via pin io5.in
M574 Y1 S1 P"io6.in"                               ; configure active-high endstop for low end on Y via pin io6.in
M574 Z1 S1 P"io2.in"                               ; configure active-high endstop for low end on Z via pin io2.in

; Z-Probe
M558 P0 H5 F120 T6000                              ; disable Z probe but set dive height, probe speed and travel speed
M557 X15:215 Y15:195 S20                           ; define mesh grid

; Heaters
M308 S0 P"temp0" Y"thermistor" T98801 B4185        ; configure sensor 0 as thermistor on pin temp0
M950 H0 C"out0" T0                                 ; create bed heater output on out0 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 S80                                        ; set temperature limit for heater 0 to 80C
M308 S1 P"temp1" Y"thermistor" T98801 B4185        ; configure sensor 1 as thermistor on pin temp1
M950 H1 C"out1" T1                                 ; create nozzle heater output on out1 and map it to sensor 1
M307 H1 B0 S1.00                                   ; disable bang-bang mode for heater  and set PWM limit
M143 H1 S240                                       ; set temperature limit for heater 1 to 240C

; Fans
M950 F0 C"out3" Q500                               ; create fan 0 on pin out3 and set its frequency
M106 P0 C"PartCool" S0 H-1                         ; set fan 0 name and value. Thermostatic control is turned off
M950 F1 C"out4" Q500                               ; create fan 1 on pin out4 and set its frequency
M106 P1 C"HotEnd" S1 H1:0 T45                      ; set fan 1 name and value. Thermostatic control is turned on
M950 F2 C"out5" Q500                               ; create fan 2 on pin out5 and set its frequency
M106 P2 C"CaseFan" S1 H1:0 T45                     ; set fan 2 name and value. Thermostatic control is turned on

; Tools
M563 P0 S"HotEnd" 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
M575 P1 S1 B57600                                  ; enable support for PanelDue
M501                                               ; load saved parameters from non-volatile memory
M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss
T0                                                 ; select first tool

Please if you need something more from my side, please let me know.
Thank you guys

This post is deleted!

Phaedrux

@javcab said in Ender 3, Z stepper motor move very slow and sound strange:

M566 X1200.00 Y1200.00 Z24.00 E300.00 ; set maximum instantaneous speed changes (mm/min) M203 X9000.00 Y9000.00 Z180.00 E6000.00 ; set maximum speeds (mm/min) M201 X500.00 Y500.00 Z100.00 E5000.00 ; set accelerations (mm/s^2)

You have the Z axis speeds limited to 180mm/min or 2mm/s which is very slow. Try these values for Z instead:

M566 Z60
M203 Z600
M201 Z200

@phaedrux Hi

Thank you for the input, I have changes the parameters and that helps a little bit, is faster but actually the problem was solved in other way.

Let me explain.

Cura 8 was overwrititng the code from my printer. I need to add the same parameters in the slicer cura to be able to use the printer with the normal speeds and behaviours you expect.

For that reason when I was turning on the printer the first time moving the motors everything looks like normal with the speed and sound in the motors, then when I was trying to print something was coming the issue, well, then I have checked the g.code in the slicer and all the parameters were different, I have just copied the same setting from config.g in the slicer and done, everything was normal. Veeeeery fast

Thank you

Phaedrux

Ah yes, depending on how you've started a printer profile in Cura it may include some speed limiting commands for marlin based printers. Best to delete those lines.

Solved Ender 3, Z stepper motor move very slow and sound strange