Motors not Moving and Getting Very Hot

[3DMakerKid]

Ok so I started a print last night before I went out of the house, got back, print completed perfectly, but the printer was just sitting there with extremely hot motors (they made the PETG they were mounted on get soft). X Y, and one Z motor won't move, those are all burning hot to the touch, the other Z motor and the extruder motor work fine. The processor on the board is also hitting 70C while doing seemingly nothing, drivers are at around the same temp. All hot motors are also making a weird kind of "ticking" noise.

[alankilian]

@3dmakerkid

Everyone is going to ask a lot of questions:

• What board do you have?
• What version of firmware are you running?
• Post your config.g and config-override.g
• Is this a new problem?
• Did you change ANYTHING before this print?

[3DMakerKid]

@alankilian Board is a Duet 3 Mini 5+, firmware is "RepRapFirmware for Duet 3 Mini 5+ 3.3 (2021-06-15)" according to DWC, this is kind of a new problem, I noticed my Z motors acting weird a week or so ago and getting extremely hot, but thought I had fixed it by correctly crimping the one motor wire, printed fine for a few days, and now this. I changed absolutely nothing before this print, except that this was a new gcode file that I had just sliced. Config.g and config-override.g are below.

d; 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 Wed Jun 30 2021 18:28:51 GMT-0400 (Eastern Daylight Time)
 
; General preferences
G90                                          ; send absolute coordinates...
M83                                          ; ...but relative extruder moves
M550 P"Hermione"                   ; 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 D3 V0                                 ; physical drive 0.0 goes forwards
M569 P0.1 S1 D3 V0                                ; physical drive 0.1 goes forwards
M569 P0.2 S0 D3 V0                                ; physical drive 0.2 goes forwards
M569 P0.3 S0                                 ; physical drive 0.3 goes forwards
M569 P0.4 S0 D3 V0
M584 X0 Y1 Z2:4 E3                           ; two Z motors connected to driver outputs Z and E1
M350 X16 Y16 Z16 E16 I1                      ; configure microstepping with interpolation
M92 X100.00 Y100.00 Z400.00 E409.00         ; set steps per mm
M566 X900.00 Y900.00 Z60.00 E120.00          ; set maximum instantaneous speed changes (mm/min)
M203 X9000.00 Y9000.00 Z600.00 E1200.00      ; set maximum speeds (mm/min)
M201 X1250.00 Y750.00 Z120.00 E250.00          ; set accelerations (mm/s^2)
M906 X600 Y800 Z400 E600 I30                 ; set motor currents (mA) and motor idle factor in per cent
M84 X Y E0 S30                                      ; Set idle timeout
 
M671 X-10:240 Y0:0 S3 ; leadscrews at left (connected to Z) and right (connected to E1) of X axis
 
; Axis Limits
M208 X0 Y0 Z0 S1                             ; set axis minima
M208 X240 Y205 Z210 S0                       ; set axis maxima
 
; Endstops
M574 X1 S3                                   ; configure sensorless endstop for low end on X
M574 Y1 S3                                   ; configure sensorless endstop for low end on Y
M915 X S3 R1 F1 ;
M915 Y S25 R1 F1 ;
 
; Z-Probe
M558 P5 C"^io2.out" H2 F600 T6000 A3             				; Prusa PindaV2 Endstop
M308 S2 P"temp2" A"Pinda V2" Y"thermistor" T100000 B3950      		; Prusa PindaV2 Thermistor
G31 P1000 X-35.75 Y-18.7 Z.68                                  				; Nozzle offset
M574 Z1 S2                                                 			; Set Z axis endstop, controlled by probe
M557 X0:180 Y0:180 P3                                    			; Define mesh grid for probing
M376 H2																; Fade height 5mm
M564 S0 ;
               
 
; 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 H0 B0 S1.00                             ; enable bang-bang mode for the bed heater and set PWM limit
M140 H0                                      ; map heated bed to heater 0
M143 H0 S120								 ; set temperature limit for heater 0 to 120C
 M307 H0 B0 R0.274 C426.1 D11.33 S1.00 V24.0   ; control parameters for H0
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 R2.203 C200.0:140.4 D5.77 S1.00 V24.1                             ; disable bang-bang mode for heater  and set PWM limit
M143 H1 S280                                 ; set temperature limit for heater 1 to 280C
 
; Fans
M950 F0 C"out5" Q500 ;
M106 P0 C"Part Cooling" S0 H-1 ;
;
M950 F1 C"out6" Q500 ;
M106 P1 C"Hotend" S1 H1 T45 ;
;
 
; 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
 

d; 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 Wed Jun 30 2021 18:28:51 GMT-0400 (Eastern Daylight Time)
 
; General preferences
G90                                          ; send absolute coordinates...
M83                                          ; ...but relative extruder moves
M550 P"Hermione"                   ; 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 D3 V0                                 ; physical drive 0.0 goes forwards
M569 P0.1 S1 D3 V0                                ; physical drive 0.1 goes forwards
M569 P0.2 S0 D3 V0                                ; physical drive 0.2 goes forwards
M569 P0.3 S0                                 ; physical drive 0.3 goes forwards
M569 P0.4 S0 D3 V0
M584 X0 Y1 Z2:4 E3                           ; two Z motors connected to driver outputs Z and E1
M350 X16 Y16 Z16 E16 I1                      ; configure microstepping with interpolation
M92 X100.00 Y100.00 Z400.00 E409.00         ; set steps per mm
M566 X900.00 Y900.00 Z60.00 E120.00          ; set maximum instantaneous speed changes (mm/min)
M203 X9000.00 Y9000.00 Z600.00 E1200.00      ; set maximum speeds (mm/min)
M201 X1250.00 Y750.00 Z120.00 E250.00          ; set accelerations (mm/s^2)
M906 X600 Y800 Z400 E600 I30                 ; set motor currents (mA) and motor idle factor in per cent
M84 X Y E0 S30                                      ; Set idle timeout
 
M671 X-10:240 Y0:0 S3 ; leadscrews at left (connected to Z) and right (connected to E1) of X axis
 
; Axis Limits
M208 X0 Y0 Z0 S1                             ; set axis minima
M208 X240 Y205 Z210 S0                       ; set axis maxima
 
; Endstops
M574 X1 S3                                   ; configure sensorless endstop for low end on X
M574 Y1 S3                                   ; configure sensorless endstop for low end on Y
M915 X S10 R1 F1 ;
M915 Y S25 R1 F1 ;
 
; Z-Probe
M558 P5 C"^io2.out" H2 F600 T6000 A3             				; Prusa PindaV2 Endstop
M308 S2 P"temp2" A"Pinda V2" Y"thermistor" T100000 B3950      		; Prusa PindaV2 Thermistor
G31 P1000 X-35.75 Y-18.7 Z.68                                  				; Nozzle offset
M574 Z1 S2                                                 			; Set Z axis endstop, controlled by probe
M557 X0:180 Y0:180 P3                                    			; Define mesh grid for probing
M376 H2																; Fade height 5mm
M564 S0 ;
               
 
; 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 H0 B0 S1.00                             ; enable bang-bang mode for the bed heater and set PWM limit
M140 H0                                      ; map heated bed to heater 0
M143 H0 S120								 ; set temperature limit for heater 0 to 120C
 M307 H0 B0 R0.274 C426.1 D11.33 S1.00 V24.0   ; control parameters for H0
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 R2.203 C200.0:140.4 D5.77 S1.00 V24.1                             ; disable bang-bang mode for heater  and set PWM limit
M143 H1 S280                                 ; set temperature limit for heater 1 to 280C
 
; Fans
M950 F0 C"out5" Q500 ;
M106 P0 C"Part Cooling" S0 H-1 ;
;
M950 F1 C"out6" Q500 ;
M106 P1 C"Hotend" S1 H1 T45 ;
;
 
; 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
 

[alankilian]

@3dmakerkid said in Motors not Moving and Getting Very Hot:

M906 X600 Y800 Z400 E600 I30 ; set motor currents (mA) and motor idle factor in per cent

This looks very conservative and shouldn't produce hot motors at all.

Let's try an experiment:

• Power-on and do not command any motions.
  -- The motors should not be enabled and you should be able to move them by hand (Slowly and only a little way or you might do damage.)
• Do the motors get hot after some time?

Home your printer.

• Do the motors get hot?

Disable your motors by entering m84

• Do the motors cool off?

[3DMakerKid]

@alankilian The motors aren't getting hot anymore for some reason, I did absolutely nothing to fix them. It's great that it seems to have fixed itself, but this happening randomly is not going to be a great thing... Also, my Y axis now will not sensorless home properly, even at a S value of 60, it's still just moving about a mm and thinking it's homed, otherwise, motion works great.