Thanks everybody!

EDIT: I am leaving this here in case somebody else looks for it. I shut down and restarted the Duet after a while and the upgrade to 3.2.2 seems to have worked, the only problem being that I didn't get a confirmation of the upgrade; the screen just kept showing the "Please wait..." message.

Yesterday I upgraded my Duet 2 WiFi from 2.x to 3.0.0 firmware by uploading through the web UI, which worked fine. I then wanted to proceed to 3.1.1, but the installation through the web UI kept hanging at the "Please wait while updates are being installed" message.

After a while (> 15 minutes) I shut down the Duet. I was able to get back to a usable state with firmware 3.0.0, including working WiFi, by following fallback procedure #1 from the documentation.

Today I decided to give it another try with 3.2.2. I again uploaded through the web UI, and it hangs again at the "Please wait while..." message.

What could I do to debug this? I could roll back to 3.0.0, but at some point I'd like to keep up with firmware updates, obviously.

PS. The Duet 2 Wifi is wired up inside the printer with 6 steppers and a Duex 2 connected. I am doing the upgrade on USB power only, no Vin.

@droftarts PS. Yeah, I had tried that. Naming the fans made them show up indeed, but the sliders didn't do anything. Upgrading to the current firmware then did the trick.

Thanks everybody! I upgraded to firmware 2.05.1 and DWC 2.0.7, and now the fan sliders show up and they work.

Kudos to the Duet team. I have never done a firmware upgrade on any device that was more convenient or less scary :-).

Thanks
Christoph

@Phaedrux Ok, will do. Thanks!

I am using DWC 2.0.4. M115 says

FIRMWARE_NAME: RepRapFirmware for Duet 2 WiFi/Ethernet FIRMWARE_VERSION: 2.03 ELECTRONICS: Duet WiFi 1.02 or later + DueX2 FIRMWARE_DATE: 2019-06-13b2

The Fan Control part of the GUI just shows FAN0, FAN1 in "fan selection", and the slider with its plus and minus signs.

Thanks for your reply
Christoph

Hi,

I have connected an LED strip to FAN2 on my Duet 2 Wifi, and I am able to control it (including dimming using PWM) with M106 P2 S<Value>. Everything in my system runs on 24 volts, including the fans and the LEDs. The LEDs supposedly draw about 550 mA, so power-wise I should be ok.

FAN2 does not show up in the web GUI though. I was hoping to get a slider like the one for the part cooling fan, but there is none. Do I need to use M950 to get that? I don't have M950 for the part cooling fan either, though:

M106 P0 S0 I0 F500 H-1 ; set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
M106 P1 S255 I0 F100 H1 T45 ; set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on
M106 P2 S0 I0 F500 H-1 ; ADDED: LED strip on FAN2 - copied from FAN0

That's all there is regarding fans. The config was mostly created by the RepRepFirmware config tool.

Do I need to add an M950 to get the fan slider in the GUI?

Thanks and regards
Christoph

Thanks everybody, @droftarts put me on the right track. Indeed my config.g was truncated. I was being too clever for my own good: I tried to deploy my config.g from a git repository on my computer using lftp, and it seems the config got mangled during the ftp upload.

I re-uploaded the config through the web interface and now everything is back to normal.

Thanks again!
Christoph

@droftarts Thanks Ian. Good to know I can validate GCode that way. I will try that first since it's the least invasive thing to do now. I'm out until tomorrow, but I will report my findings.

Regards
Christoph

Thanks for the suggestions. I don't think the print file is the problem since the heaters are gone from the UI before I even start a job. I'll probably try and measure the resistance of the heater cartridge first to see if there is anything shorted or broken, and then try to rebuild the SD card from scratch. Luckily, I have a backup...

Hi,

I was printing successfully last night, but when I started up my printer running a Duet 2 Wifi/Duex 2 today, both the bed heater as well as the hot end heater are gone. No more tools show up in DWC.

Here's the output of M115:
FIRMWARE_NAME: RepRapFirmware for Duet 2 WiFi/Ethernet FIRMWARE_VERSION: 2.03 ELECTRONICS: Duet WiFi 1.02 or later + DueX2 FIRMWARE_DATE: 2019-06-13b2

The heaters section in config.g looks just like it did yesterday:

; Heaters
M307 H0 B0 S1.00 ; disable bang-bang mode for the bed heater and set PWM limit
M305 P0 T100000 B4138 R4700 ; set thermistor + ADC parameters for heater 0
M143 H0 S120 ; set temperature limit for heater 0 to 120C
M305 P1 T100000 B4138 R4700 ; set thermistor + ADC parameters for heater 1
M143 H1 S280 ; set temperature limit for heater 1 to 280C

The hot end is an original E3D V6 (24V), and the bed heater is a 24V, 300W silicone mat powered through an MKS MOSFET.

I tried starting a job - the bed does heat up, but the hot end remains cold. The printer goes through the motions, but doesn't extrude. DWC reads "M104: invalid tool number", "M109: invalid tool number", "Attempting to extrude with no tool selected".

What could I do to debug this? Any help would be highly appreciated.

Thanks
Christoph