@cj19944 Just used an external 5v power supply and all is working okay thanks again.

@cj19944
All this did was just not shut the machine down.

@dc42 i have taken it from the 5v .i05 rail should i use another pin.
Thanks

@cj19944 I turned arc welder of in cura and this resolved the issue thanks for your help.

@jay_s_uk Hi I just increased that to 120 and still no change. Could it be something to do with the g code? Thanks

@jay_s_uk ```

; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.3.10 on Fri May 06 2022 00:13:26 GMT+0100 (British Summer Time)

; General preferences
G90                                          ; send absolute coordinates...
M83                                          ; ...but relative extruder moves
M550 P"L3D"                                  ; set printer name
M302 S120 R110

; Wait a moment for the CAN expansion boards to start
G4 S2

; Network
M552 P192.168.1.210 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 P0.0 S0                                 ; physical drive 0.0 goes backwards
M569 P0.1 S0                                 ; physical drive 0.1 goes backwards
M569 P0.2 S0                                 ; physical drive 0.2 goes backwards
M569 P0.3 S0                                 ; physical drive 0.3 goes backwards
M569 P122.0 S0 R0 T3:3:3:5
M584 X0.0 Y0.1 Z0.2 E0.3:122.0                  ; set drive mapping
M350 X16 Y16 Z16 E16:16 I1                      ; configure microstepping with interpolation
M92 X320.00 Y320.00 Z320.00 E492.45:224.6     ; set steps per mm
M566 X900.00 Y900.00 Z60.00 E120.00:120.00      ; set maximum instantaneous speed changes (mm/min)
M203 X3000 Y3000 Z600.00 E1200.00:9000 ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z20.00 E250.00:250.00      ; set accelerations (mm/s^2)
M906 X2800 Y2800 Z2800 E1200:4100 I60           ; set motor currents (mA) and motor idle factor in per cent
M84 S200                                    ; Set idle timeout

; Axis Limits
M208 X-500 Y-500 Z0 S1                            ; set axis minima
M208 X535 Y500 Z1450 S0                    ; set axis maxima

; Endstops
M574 X1 S1 P"io1.in"                         ; configure switch-type (e.g. microswitch) endstop for low end on X via pin io1.in
M574 Y1 S1 P"io2.in"                         ; configure switch-type (e.g. microswitch) endstop for low end on Y via pin io2.in
M574 Z1 S2                                   ; configure Z-probe endstop for low end on Z

; Z-Probe
M950 S0 C"io7.out"                           ; create servo pin 0 for BLTouch
M558 P9 C"io4.in" H10 F240 T6000            ; set Z probe type to bltouch and the dive height + speeds
G31 P500 X0 Y0 Z2.785 ; set Z probe trigger value, offset and trigger height
M557 X-450:450 Y-450:450 S100                    ; define mesh grid

; Heaters
M308 S0 P"temp0" Y"pt1000"                   ; configure sensor 0 as PT1000 on pin temp0
M950 H0 C"out0" T0                           ; create nozzle heater output on out0 and map it to sensor 0
M307 H0 B0 S1.00                             ; disable bang-bang mode for heater  and set PWM limit
M143 H0 S280
; bed
                                 ; set temperature limit for heater 0 to 280C
M308 S1 P"temp1" Y"thermistor" T100000 B3950 ; configure sensor 1 as thermistor on pin temp1
M950 H1 C"out9" T1                         ; create bed heater output on 1.out0 and map it to sensor 1
M307 H1 R0.332 K0.297:0.000 D3.05 E1.35 S1.00 B0                             ; enable bang-bang mode for the bed heater and set PWM limit
M140 H1                                      ; map heated bed to heater 1
M143 H1 S150                                 ; set temperature limit for heater 1 to 150C

; dyze
M308 S2 P"spi.cs2" Y"rtd-max31865"           ; configure sensor 2 as PT100 on pin spi.cs2
M950 H2 C"out1" T2                           ; create nozzle heater output on out1 and map it to sensor 2
M307 H2 R0.978 K0.093:0.000 D15.87 E1.35 S1.00 B0 V28.2                            ; disable bang-bang mode for heater  and set PWM limit
M143 H2 S480                                 ; set temperature limit for heater 2 to 150C

M308 S3 P"spi.cs1" Y"rtd-max31865"           ; configure sensor 3 as PT100 on pin spi.cs1
M950 H3 C"out2" T3                           ; create nozzle heater output on out2 and map it to sensor 3
M307 H3 R0.932 K0.093:0.000 D15.34 E1.35 S1.00 B0 V48.3                          ; disable bang-bang mode for heater  and set PWM limit
M143 H3 S480                                ; set temperature limit for heater 3 to 150C

M308 S4 P"spi.cs0" Y"rtd-max31865"           ; configure sensor 4 as PT100 on pin spi.cs0
M950 H4 C"out3" T4                           ; create nozzle heater output on out3 and map it to sensor 4
M307 H4 R1.251 K0.124:0.000 D14.53 E1.35 S1.00 B0 V28.4                            ; disable bang-bang mode for heater  and set PWM limit
M143 H4 S480                          
           
; Fans                                       
M950 F1 C"out5" Q500                         ; create fan 1 on pin out5 and set its frequency
M106 P1 C"noctua" S1 H-1                     ; set fan 1 name and value. Thermostatic control is turned off

M950 F2 C"!out4" Q500                        ; create fan 2 on pin !out4 and set its frequency
M106 P2 C"pump" S1 H T25                    ; set fan 2 name and value. Thermostatic control is turned on

M950 F3 C"out7" Q500                         ; create fan 0 on pin out7 and set its frequency
M106 P3 C"water fan1" S1 H-1
M950 F4 C"out8" Q500                         ; create fan 0 on pin out8 and set its frequency
M106 P4 C"water fan2" S1 H-1



; Tools
M563 P0 S"slice head" D0 F0 T0                  ; 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
M563 P1 S"dyze head" D1 H2:3:4 F0 T1                  ; define tool 1
G10 P1 X-49 Y0 Z0                              ; set tool 1 axis offsets
G10 P1 R0 S0

; Custom settings are not defined

thanks for the reply

@cj19944 https://share.icloud.com/photos/0b0KIHus-wi4XlhNq3yrfaPcw

Hi, I Have a medium 3d printer running on stepper motors and duet 3 6hc, which is stalling at certain areas in the print, I though it was due to 24v being to low so I upgrade to the new duet 3 and a 48 power supply 1000w, I think the steppers only need about 134 watts and there is 5 in total. It is definitely a lot better since I upgrade to 48v, I will add a video to show the stalling. If anyone has some recommendations it would be much appreciated .

@TRATOON i have used these finned strip heaters, in a heated chamber build before got up to 90 degrees c https://www.ebay.co.uk/itm/291050095804
I first got some out of and old stratus printer but i did not know the name of them at the time.

@dc42 Thank you.

@jay_s_uk I am in the uk.

@Phaedrux i dont see any chips that are broken but i have replaced the duet now maybe ill get another use out of it , i also had to replace the bl touch as that got fried anyway thanks for your help.