@richardmckenna That is exactly what I was looking into doing also! Do you have any documentation or guides on how to do this? I don't know how to code a Raspberry Pi..

Just saw your comment, would love to see a guide in the future!

@bot I literally was so confused when I first started using PrusaSlicer. You can clearly see the extrusion width change when you re-slice a model. I will read your entire thread and try your branch/edit of the software and report back!

@stephen6309 Thanks, I hadn't realized filastruder had them. I assume they don't need to match the other drivers that are on the DuetWifi 2.

@phaedrux Okay that would be a much easier pill to swallow. Does the driver need to match the ones on the board or can it be a newer TMC driver? Unfortunately it looks like single stepsticks are harder to come by on amazon. Any other sources for a TMC stepstick? Thanks again for the help as usual Phaedrux.

@phaedrux Dang didn't really want to spend another $100, yeah I might do the exchange when Roland gets back to my email. Would a Maestro expansion board work as well? Or would the pin setup not work with the Duetwifi2 - V1.02.
https://www.filastruder.com/collections/electronics/products/duet-maestro-expansion-board

@phaedrux If I wired the Z motors in series though I wouldn't be able to control bed leveling correct? What would be the cheapest way to add an external driver? I personally don't have the skills to repair/solder that small but would be up for getting it repaired. I messaged two of the USA based people that were on the community repair post. I will email Roland now and see what he says. Thanks for the help!

@phaedrux Let me know if you need some photos at different angles, I tried to get as close as possible to see the solder points. Is it crucial to mount the board with the plastic washers? I had it out of the case I had it mounted in and I still get the same driver reporting shorted. You can tell the board has been sitting unused with the dust haha. Is there someone in the US or Canada that does repairs?

@Phaedrux I was wondering if I could switch the jumpers from the ZB to ZA. But that should solve my problem because it would still be running through Drive 2. For all of the testing I did for the error:short-to-ground, the jumpers were in option A single Z motor, and the second motor was set to run off Drive 4 E1. Hopefully that all makes sense.

Looks awesome!

Hey everyone,

I have an extra Duetwifi 2 (V1.02 board design) laying around that I have running firmware 2.03 (haven't taken the dive into 3.0 yet). I plugged it in and made a config for a COREXY printer I have been building and I am getting a constant from startup - Error:short-to-ground/over temp shutdown reported by driver 2.
With or without steppers plugged in, tried multiple cables/steppers, drivers aren't getting hot.
Is it potentially a coding issue like this other post? ----- https://forum.duet3d.com/topic/12953/driver-0-short-to-ground/8?_=1640877003699

Here is my config.g and M122 report (which had no stepper motors plugged in when the gcode was sent).
Is it possible to swap the jumpers on Drive 2? I would assume that wouldn't change anything since it is the driver itself that is having issues. Hoping it isn't a dead driver because this board has just been sitting unused for a couple of years now...

Thanks

; Configuration file for Duet WiFi (firmware version 2.03)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.1.4 on Sat Aug 01 2020 17:18:06 GMT-0400 (Eastern Daylight Time)

; 0 - INDEX
; 1 - GENERAL PREFERENCES
; 2 - NETWORK
; 3 - DRIVES
; 4 - DRIVE SETTINGS
; 5 - AXIS LIMITS + ENDSTOPS + Z-PROBE
; 6 - HEATERS
; 7 - FANS
; 8 - TOOLS
; 9 - MISC

; FEEDRATE CONVERSIONS
: Slow		10mm/s = F600 - 20mm/s = F1200 - 30mm/s = F1800
; Medium	40mm/s = F2400 - 50mm/s = F3000 - 60mm/s = F3600
; Fast		80mm/s = F4800 - 100mm/s = F6000 - 120mm/s = F7200

; 1 - GENERAL PREFERENCES ---------------------------------------------------------------------------------------------------
M111 S0												; Debugging off
G21													; Work in millimetres
G90													; Send absolute coordinates...
M83													; ...but relative extruder moves
M555 P1												; Set firmware compatibility to look like RepRapFirmare
M669 K1												; Select CoreXY mode

; 2 - NETWORK ---------------------------------------------------------------------------------------------------------------
M550 P"X"									; Set machine name
;M551 P"X"										; Set password
M552 S1                                  			; Enable network
;*** Access point is configured manually via M587
M586 P0 S1                               			; Enable HTTP
M586 P1 S0                               			; Disable FTP
M586 P2 S0                               			; Disable Telnet

; 3.0 - DRIVES --------------------------------------------------------------------------------------------------------------
M569 P0 S1											; Physical Drive 0 goes FORWARD (X_AXIS)
M569 P1 S1											; Physical Drive 1 goes FORWARD (Y_AXIS)
M569 P2 S1											; Physical Drive 2 goes FORWARD (Z_AXIS-1)
M569 P3 S1											; Physical Drive 3 goes FORWARD (E_AXIS)
M569 P4 S1											; Physical Drive 4 goes FORWARD (Z_AXIS-2)

M584 X0 Y1 Z2:4 E1									; Two Z motors connected to driver outputs 2 and 4 (E1)
M671 X20:380 Y200:200 S1 P2							; Z leadscrews are at (20,200), (380,200)

; 4 - DRIVE SETTINGS - TRAVEL SPEEDS + PRINT SPEEDS -----------------------------------------------------------------------
M350 X16 Y16 Z16 E16 I1								; Configure microstepping with interpolation
M92 X80.00 Y80.00 Z1600.00 E837.00					; Set steps per mm
M566 X900.00 Y900.00 Z120.00 E120.00				; Set maximum instantaneous speed changes (mm/min)
M203 X12000.00 Y12000.00 Z600.00 E1200.00			; Set maximum speeds (mm/min)
M201 X800.00 Y800.00 Z100.00 E350.00				; Set accelerations (mm/s^2)
M906 X800.00 Y800.00 Z800.00 E800.00 I30			; Set motor currents (mA) and motor idle factor in per cent
M84 S30												; Set idle timeout

; 5 - AXIS LIMITS + ENDSTOPS + Z-PROBE --------------------------------------------------------------------------------------
;Axis limits
M208 X0 Y0 Z0 S1									; Set axis minima
M208 X400 Y400 Z600 S0								; Set axis maxima

;X/Y Endstops
M574 X1 Y2 S1										; Set active high endstops

;Sensorless Homing
;M574 X1 S3 F0 R0									; Set active High endstops (S1=SENSORED) (X-MIN(1)) (S3=SENSORLESS)
;M574 Y0 S3 F0 R0									; Set active High endstops (S1=SENSORED) (Y-MIN(1)) (S3=SENSORLESS)
;M574 X1 Y1 S3										; Set endstops controlled by motor load detection
;M574 Z1 S2											; Use zprobe and home to min
;M915 X Y S7 R0 F0									; set X and Y to sensitivity 7, do nothing when stall, unfiltered

;Z-Probe --- IR PROBE
M574 Z1 S2											; Set endstop controlled by probe
M558 P1 H3 F120 T9000								; Set Z probe type to modulated and the dive height + speeds
G31 P500 X0 Y13.5 Z1.00								; Set Z probe trigger value, offset and trigger height
M557 X20:380 Y20:380 S95							; Define mesh grid

; 6 - HEATERS ---------------------------------------------------------------------------------------------------------------
;Heated Bed
;M307 H0 A46.7 C66.3 D4.5 B0 S1.00					; Disable bang-bang mode for the bed heater and set PWM limit
M305 P0 T100000 B4092 R4700							; set thermistor + ADC parameters for heater 0
M143 H0 S120										; set temperature limit for heater 0 to 120C

;Hotend
;M307 H1 A384.4 C190.7 D4.8 B0 S1.00				; Disable bang-bang mode for the bed heater and set PWM limit
M305 P1 T100000 B4725 C7.060000e-8 R4700			; set thermistor + ADC parameters for heater 1
M143 H1 S280										; set temperature limit for heater 1 to 280C

; 7 - FANS ------------------------------------------------------------------------------------------------------------------
M106 P0 S1 I0 F500 H1 T45							; set fan 0 value, PWM signal inversion and frequency. (Hotend Fan) Thermostatic control. Turns on when hotend reaches 45c

;M106 P0 S0 I0 F500 H-1								; Set fan 0 (Part cooling blower) G-code controlled. Thermostatic control is turned off
;M106 P1 S1 I0 F500 H1 T45							; Set fan 1 (Hotend Fan) Thermostatic control. Turns on when hotend reaches 45c
;M106 P2 S0 I0 F500 H-1								; Set fan 2 (Duet Fan) G-code controlled. Thermostatic control is turned off

; 8 - TOOLS -----------------------------------------------------------------------------------------------------------------
M563 P0 S"E3DV6 - 0.4mm" 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

; Automatic saving after power loss is not enabled

; Custom settings are not configured

; 9 - Miscellaneous ---------------------------------------------------------------------------------------------------------
M501 					 							; Load saved parameters from non-volatile memory
;T0													; Select first tool[/c]
;G29 S1												; Load the height map from the last time you used G29 to probe the bed.

M122
=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 2.05.1 running on Duet WiFi 1.02 or later
Board ID: 08DDM-9FAM2-LW4SD-6J9F6-3SN6M-12ZVY
Used output buffers: 1 of 24 (17 max)
=== RTOS ===
Static ram: 25712
Dynamic ram: 93164 of which 392 recycled
Exception stack ram used: 272
Never used ram: 11532
Tasks: NETWORK(ready,628) HEAT(blocked,1232) MAIN(running,3760) IDLE(ready,160)
Owned mutexes:
=== Platform ===
Last reset 00:06:58 ago, cause: power up
Last software reset at 2021-12-30 12:10, reason: User, spinning module GCodes, available RAM 11552 bytes (slot 0)
Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x04433000 BFAR 0xe000ed38 SP 0xffffffff Task 0x4e49414d
Error status: 0
Free file entries: 10
SD card 0 detected, interface speed: 20.0MBytes/sec
SD card longest block write time: 0.0ms, max retries 0
MCU temperature: min 25.6, current 25.6, max 26.0
Supply voltage: min 24.1, current 24.2, max 24.4, under voltage events: 0, over voltage events: 0, power good: yes
Driver 0: standstill, SG min/max not available
Driver 1: standstill, SG min/max not available
Driver 2: temperature-shutdown! short-to-ground standstill, SG min/max not available
Driver 3: standstill, SG min/max not available
Driver 4: standstill, SG min/max not available
Date/time: 2021-12-30 12:47:19
Cache data hit count 1278367466
Slowest loop: 2.04ms; fastest: 0.07ms
I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0
=== Move ===
Hiccups: 0, FreeDm: 160, MinFreeDm: 160, MaxWait: 0ms
Bed compensation in use: none, comp offset 0.000
=== DDARing ===
Scheduled moves: 0, completed moves: 0, StepErrors: 0, LaErrors: 0, Underruns: 0, 0
=== Heat ===
Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1
=== GCodes ===
Segments left: 0
Stack records: 1 allocated, 0 in use
Movement lock held by null
http is idle in state(s) 0
telnet is idle in state(s) 0
file is idle in state(s) 0
serial is idle in state(s) 0
aux is idle in state(s) 0
daemon is idle in state(s) 0
queue is idle in state(s) 0
autopause is idle in state(s) 0
Code queue is empty.
=== Network ===
Slowest loop: 201.15ms; fastest: 0.08ms
Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0) Telnet(0)
HTTP sessions: 2 of 8
- WiFi -
Network state is running
WiFi module is connected to access point 
Failed messages: pending 0, notready 0, noresp 2
WiFi firmware version 1.23
WiFi MAC address 60:01:94:34:3b:0a
WiFi Vcc 3.40, reset reason Turned on by main processor
WiFi flash size 4194304, free heap 22656
WiFi IP address 192.168.1.63
WiFi signal strength -54dBm, reconnections 0, sleep mode modem
Socket states: 0 0 0 0 0 0 0 0

@bot I literally was so confused when I first started using PrusaSlicer. You can clearly see the extrusion width change when you re-slice a model. I will read your entire thread and try your branch/edit of the software and report back!

Hey bot, would this odd flow math be the cause for my problem?

When changing layer heights from 0.2mm to 0.1mm, the first layer extrusion width doesn't stay the same. For example, I have the first layer set to 275% for 0.2mm but when I change to 0.1mm I have to bump it up to 400% to get a "large" first layer. I hope that makes sense...