Topics created by EricE555

Yes it's likely the mosfet was blown and failed in the on state.

the mosfets can be replaced if you're handy with an iron.

https://duet3d.dozuki.com/Wiki/Connector_and_spare_part_numbers#Section_Fan_mosfet

@erice555 use the built-in levelling mechanism. See https://duet3d.dozuki.com/Wiki/Bed_levelling_using_multiple_independent_Z_motors.

@erice555 RRF will warn you if the drivers report over temperature warning or over temperature error. You can also configure a fan to turn on of any them generates a warning. There is no automatic current reduction when an over temperature warning is generated, however in RRF 3.4 you can set up a macro to do whatever you wish when a warning is generated.

@t3p3tony https://www.amazon.com/gp/product/B088W8WMTB/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

@jay_s_uk thank you. very helpful.

@erice555 yes that's the correct way to account for a low-end homing switch that triggers above the axis minimum.

okay, I am back connected with Ethernet. Whew! I just needed to follow the "Fallback procedure #3" instructions exactly. hehe
Believe it or not, it DID fix my thermistor issue!
So I am up and running.

Mystery Solved!
My switch had gotten bumped and lost power. So my computer happily connected to my wifi and continued to work but had no access to the Access Point that my printer was on because that AP was Ethernet. So now that my computer is back on eithernet and wifi is off, all is well. Whew!

After figuring out what I did wrong, I was able to run this script.
I had changed M84 (idle timeout) to 10 seconds because the motors make a little noise. Once I put that back to something reasonable, I had the necessary time to adjust nozzle to the bed height and then continue the script without the errors. 🙂
Now we'll see if I can make use of this to have a good offset for the nozzle when printing.

Thanks Phaedrux. I did indeed have the motor timeout set to 10. I changed it to 60 to solve another problem I was having and now I don't think I would have an issue here. The 17 second wait was for cooling on extremely small layers for PETG (where I have no fan on). The minimum layer time was 20.

I also took your advice on the Cura machine code and set m90 at the top.

Thanks again.