What the frick is that? stuttering

PCR

Can you post the Gcode of the file and the config.g and the output of the M122 ?

taconite

Veti

@taconite said in What the frick is that? stuttering:

I2C nak errors 14, send timeouts 517456, receive timeouts 13, finishTimeouts 517471, resets 517470

its your wiring to the duex that is causing the problems
did you adhere to the wiring described here?
https://duet3d.dozuki.com/Wiki/Duex2_and_Duex5_Features#Section_Wiring

taconite

seem like a lot of time-outs.

About the wiring:

ribbon cable --> check
short connection of the 2 GNDs --> check (30mm cable) (in my configuration the duet2 and the duex5 are mounted back to back with 20mm of air flow gap) The gap is ventilated by 2 fans. The electronics compartment is under the heat bed and is againd ventilated by a big fan. The temperatures never rise beyond 45 °C.
low resistance --> check, 2,5 mm²
not reversed --> check

Veti

@taconite said in What the frick is that? stuttering:

short connection of the 2 GNDs --> check (30mm cable)

try the wiring as it is in the pictures. maybe that helps.

taconite

@Veti but why would that help?

Veti

@taconite
i seem to remember that the i2c error can stem from grounding issues.

taconite

start of a new print (2 mins in)

M122
=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 3.1.0 running on Duet WiFi 1.02 or later + DueX5
Board ID: 08DLM-996RU-N8PS0-7J9FA-3S86S-9B8HP
Used output buffers: 3 of 24 (24 max)
=== RTOS ===
Static ram: 28180
Dynamic ram: 96288 of which 44 recycled
Exception stack ram used: 512
Never used ram: 6048
Tasks: NETWORK(ready,60) HEAT(blocked,1168) DUEX(suspended,160) MAIN(running,1552) IDLE(ready,80)
Owned mutexes: WiFi(NETWORK)
=== Platform ===
Last reset 00:15:21 ago, cause: power up
Last software reset at 2020-10-31 15:15, reason: User, spinning module GCodes, available RAM 6696 bytes (slot 2)
Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0041f000 BFAR 0xe000ed38 SP 0xffffffff Task MAIN
Error status: 4
MCU temperature: min 32.8, current 33.2, max 33.4
Supply voltage: min 23.5, current 23.5, max 23.7, under voltage events: 0, over voltage events: 0, power good: yes
Driver 0: ok, SG min/max 0/256
Driver 1: ok, SG min/max 0/348
Driver 2: ok, SG min/max 0/344
Driver 3: standstill, SG min/max not available
Driver 4: standstill, SG min/max not available
Driver 5: ok, SG min/max not available
Driver 6: standstill, SG min/max not available
Driver 7: standstill, SG min/max not available
Driver 8: standstill, SG min/max not available
Driver 9: standstill, SG min/max not available
Date/time: 2020-10-31 15:31:19
Cache data hit count 1437815031
Slowest loop: 4.68ms; fastest: 0.15ms
I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0
=== Storage ===
Free file entries: 9
SD card 0 detected, interface speed: 20.0MBytes/sec
SD card longest read time 3.5ms, write time 0.0ms, max retries 0
=== Move ===
Hiccups: 0(0), FreeDm: 156, MinFreeDm: 121, MaxWait: 0ms
Bed compensation in use: mesh, comp offset 0.000
=== MainDDARing ===
Scheduled moves: 2036, completed moves: 1996, StepErrors: 0, LaErrors: 0, Underruns: 0, 0 CDDA state: 3
=== AuxDDARing ===
Scheduled moves: 0, completed moves: 0, StepErrors: 0, LaErrors: 0, Underruns: 0, 0 CDDA state: -1
=== Heat ===
Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1 -1 -1
Heater 0 is on, I-accum = 0.0
Heater 1 is on, I-accum = 0.5
=== GCodes ===
Segments left: 1
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
USB is idle in state(s) 0
Aux is idle in state(s) 0
Trigger is idle in state(s) 0
Queue is idle in state(s) 0
Daemon is idle in state(s) 0
Autopause is idle in state(s) 0
Code queue is empty.
=== Network ===
Slowest loop: 199.87ms; fastest: 0.09ms
Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0), 0 sessions
HTTP sessions: 1 of 8

WiFi -
Network state is active
WiFi module is connected to access point
Failed messages: pending 0, notready 0, noresp 4
WiFi firmware version 1.23
WiFi MAC address 84:0d:8e:b3:04:fb
WiFi Vcc 3.42, reset reason Unknown
WiFi flash size 4194304, free heap 24048
WiFi IP address 192.168.2.100
WiFi signal strength -57dBm, reconnections 0, sleep mode modem
Socket states: 0 0 0 0 0 0 0 0
=== DueX ===
Read count 0, 0.00 reads/min