Extruder motor gets crazy.

dutti

@droftarts
Different code, same problem
Any other options to solve the problem?
thanks to all
Richard


; Configuration file for Duet 3 (firmware version 3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.1.3 on Tue Jun 23 2020 22:36:44 GMT+0200 (Mitteleuropäische Sommerzeit)

; General preferences
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"Duet 3" ; set printer name

; Drives
M569 P0.0 S1 ; physical drive 0.0 goes forwards
M569 P0.1 S1 ; physical drive 0.1 goes forwards
M569 P0.2 S1 ; physical drive 0.2 goes forwards
M569 P0.3 S1 ; physical drive 0.3 goes forwards
M569 P0.4 S1 ; physical drive 0.4 goes forwards
M569 P0.5 S1 ; physical drive 0.5 goes forwards
M569 P1.0 S0 ; physical drive 1.0 goes forwards
M569 P1.1 S1 ; physical drive 1.1 goes forwards
M569 P1.2 S1 ; physical drive 1.2 goes forwards
M584 X0.0 Y0.1 Z0.2:0.3:0.4:0.5 E1.0:1.1:1.2 ; set drive mapping
M350 X16 Y16 Z16 E16:16:16 I1 ; configure microstepping with interpolation
M92 X80.00 Y80.00 Z1600.00 E92.70:92.70:92.70 ; set steps per mm ; set steps per mm
M566 X900.00 Y900.00 Z12.00 E120.00:120.00:120.00 ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z180.00 E1200.00:1200.00:1200.00 ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z40.00 E250.00:250.00:250.00 ; set accelerations (mm/s^2)
M906 X1200 Y1200 Z3000 E1200:1200:1200 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 X700 Y700 Z800 S0 ; set axis maxima

; Endstops
M574 X2 S1 P"!io3.in" ; configure active-high endstop for high end on X via pin !io3.in
M574 Y2 S1 P"!io0.in" ; configure active-high endstop for high end on Y via pin !io0.in

; Z-Probe
M558 P9 C"io4.in" H10 F200 T1800 ; set Z probe type to bltouch and the dive height + speeds
M950 S0 C"io4.out" ; create servo pin 0 for BLTouch
G31 P25 X-20 Y-20 Z2.5 ; set Z probe trigger value, offset and trigger height
M557 X10:600 Y10:600 S200 ; define mesh grid

; Heaters
M308 S0 P"temp0" Y"thermistor" T100000 B4138 ; 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 H1 S1.00 ; disable bang-bang mode for the bed heater and set PWM limit
M140 H0 ; map heated bed to heater 0
M143 H0 S90 ; set temperature limit for heater 0 to 90C
M308 S1 P"temp1" Y"thermistor" T100000 B4138                                     ; 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

; Fans
M950 F0 C"out3" Q500 ; create fan 0 on pin out3 and set its frequency
M106 P0 S0.8 H-1  ; set fan 0 value. Thermostatic control is turned off
M950 F1 C"out7" Q500 ; create fan 1 on pin out7 and set its frequency
M106 P1 S1 H-1 ; set fan 1 value. Thermostatic control is turned off
M950 F2 C"out8" Q500 ; create fan 2 on pin out8 and set its frequency
M106 P2 S1 H T45 ; set fan 2 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
M671 X-19.5:99.5:99.5:-19.5 Y110:110:540:540 S2.5

; Miscellaneous
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

Phaedrux

Have you calibrated the extruder yet?

dutti

@Phaedrux
No, but the seller told me that I need 92.7 steps per mm. This amount I had on a different machine and it was working perfectly.
I have the same motor on the x + y axis and there are not hot when working.
I think the motor still gets 3a instead of 1.2a.
thanks a lot
Richard

Phaedrux

If you send M906 by itself, what does it report?

You should try this extruder calibration to see if your steps per mm is correct.

https://duet3d.dozuki.com/Guide/Ender+3+Pro+and+Duet+Maestro+Guide+Part+4:+Calibration/40#s165

If it's extruding the right amount of filament, but the amount of filament during a print is still wrong, then there is something wrong with the slicer config.

dutti

@Phaedrux
@Phaedrux said in Extruder motor gets crazy.:

M906

M906
Motor current (mA) - X:1200, Y:1200, Z:3000, E:1200:1200:1200, idle factor 30%

I think it´s correct.

I just extruded manually on the dwc to test the new config.g.
I´ll try to print.... but the motor was much faster than excepted. It´s like freaking out!

dutti

This post is deleted!

dutti

@barbarossa-cologne
and in this situation it´s not possible to calibrate anyways. because it´s just not possible to extrude something.
The extruder just makes one step and jumps that step back. Problem with extruding to fast is solved!!
Extruder isn´t hot anymore! --> solved
Maybe the motor is broken, now.
I´ll check that!
KR
Richard

Phaedrux

@barbarossa-cologne said in Extruder motor gets crazy.:

Maybe the motor is broken, now.

I guess that could be possible if it was getting 3A for a long time when it's rated for 1.2A.

dc42

@barbarossa-cologne said in Extruder motor gets crazy.:

Maybe the motor is broken, now.
I´ll check that!

Measure the resistance of each phase. Compare them with each other and with the datasheet.

dutti

@Phaedrux
Motor wasn´t working correct after having 3a instead of 1.2a.
Thanks
Problem solved!