@t3p3tony I think there is a step missing in the calibrate the Z probe trigger height.

I followed the steps over and over again and the bed kept stopping at a distance too far from the nozzle. Then it occurred to me that the z value in the config.g file may be adding to the value the duet was reporting. So i set that value to 0 and then the bed when all the way up and too far. So then i used trial and error in the config file to get it just right. It took many tries but at last count it worked right. Final value so far is 2.87.

@bearer OK found it, right click filename!

@bearer Thx for the link. I havent found a way to delete from DWC

Is there anyway to delete gcode files on the sd card without removing the card from the duet?

@dkos My printer bed is 21X21 inches and quite heavy, and i have no trouble with only 2 motors 3 leads screws. If anything stops working i will try only one motor, but right now its printing better than ever. Actually i will be replacing the lead screws with ball screws, just waiting for a new and longer timing belt to arrive.

@dkos I have 3 z axis and 3 motors, two are wired together. I use 2 of the z outputs on the duet wifi and they stay insync. However keeping the bed level has been a nightmare until i tied all 3 together via a gt2 timing belt. They now stay insync and rarely need to level the bed. After nearly a year i was having issues with the bed so i took apart one of the 3 motors and just use it as an idler. It runs pretty well now except for the occasional clash of the motors which results in some horrendous noise, skipped steps and stuff but this is only happened a few times and not during a print and did not put it out of level. The makers of the machine suggest only one motor is adequate, that would for sure solve the sync problem.

I can read the card on a pc, and tried 4 other cards. When sending commands M20, there is no feedback at all, the message area stays blank.

There is no reaction when trying to move the nozzle. The nozzle temp reads 0, it will allow me set the temp but there is no reaction after doing so.

I have been trying to connect to the board on my pc, but Windows 10 no longer shows com ports, they are now usb ports. So Yat shows no com ports available. If switched to usb ports in Yat it lists all my usb ports and whats connected to them, except it doesnt show the Duet when its plugged in.

I should mention that before it stopped working, the nozzle was at 190 deg and i was extruding some filament, then it suddenly shut down as it would with a heater fault except there was no message, it hasnt worked since.

Actually when sending commands via panel due, there is no response, probably duet has to read the sd card before it can do anything. Wondering if there something wrong with the board.

Does that mean that the Raspberry Pi 3b with be handling the internet connection or will the duet 3 be similar to duet 2 for internet? If the Pi is doing then it might be prudent to get a pi and figure that out in advance?

I've been using the Duet wifi 2, now for 2 or 3 years, and it suddenly cant read the sd card. I havent been able to connect to wifi for well over a year so the sd card gets lots of use. I tried another card but it doesnt respond to it either. Are there any command i could try entering in the panel due to get an idea of the problem?

ok thanks