Topics created by CrazyJane

@phaedrux No problems with connectivity until the second incident that left the empty config.g file .
The IP address changed from 192.168.1.11 to 192.168.1.9.

@crazyjane have you tried connecting a USB cable to the Duet, and no VIN power? When you do, does either the red 5V or the green 3.3v LED light up?

@CrazyJane thanks to Frederick it's complete now. Thanks for information about the reason.

@zapta Thanks for your interest, much appreciated,

@CrazyJane said in Dead Thermistor:

Could I use a PT100 board to replace the failed thermistor

that should could work, no obvious reason to suspect it won't at least. you'll still need to replace the heater output mosfet or use an external one in its place.

@dc42 Yes, it's that one.

@aidar said in SD card issue:

Hi.

Have you read this? https://duet3d.dozuki.com/Wiki/Connecting_an_LCD_control_panel. How is it connected?

Thanks for your reply, I read this article when I was initially setting up the duet3d, I used the 4 way cable because of the 400mm length restriction when using the ribbon cable but missed the bit about using the additional ribbon cable, I'll try that later when I've procured the connectors

I'll do that in future!

@snowcrash said in Duet Wifi 2 third party pt100 board:

@crazyjane, to the best of my knowledge, one important point to bear in mind in this context is that the 3rd party board needs to have a 400R reference resistor for the board to work properly (i.e. give correct readings) when hooked up to the Duet.

Based on the schematics, 400R is the value of the reference resistor on the Duet's daughter board (although in some cases it's noted as 430R - don't ask me why), and, again as far as I know, that's the value used by the Duet's firmware (unless there's a way of tweaking this value in the settings - I haven't looked into that).

For my machine, I've actually made my own custom little daughter board for the PT-100 based on the MAX31865 & a 400R reference resistor (I didn't want to use the Duet's as I didn't want the daughter board to sit on top of the controller), and it works great 🙂

Hope it helps.
SnowCrash

It's possible to use 430R or another value for the reference resistor instead of 400R, if you specify the value of that resistor in the R parameter of the M305 command.