Duet2 Wifi E0 stopped working

DennisHall

I had a nozzle clog last week.
After clearing the clog by replacing the throat and nozzle at the heater block with new ones, I then went to test everything.
It all worked for about 2 minutes then, I went to retract and only heard a single click from my E0 extruder motor.
I tried to Extract and got no response from the motor.
No smoke happened or anything.

Next I swapped the extruder motor wiring with my Y-Axis wiring and found the extruder motor works fine and the Y-Axis motor did that single click with no further responses.
The problem followed the motor end of the cable.
I then swapped them back and swapped the board end of the cables.
The problem followed the boards ports.

In summary, my E0 motor plug on my Duet2 Wifi is fried - no idea how it happened.
Upon close (magnifying glass close) inspection, the board has no signs of burning and nothing crossing any of the conductive paths or solder points.

My config.g has this motor addressed as M569 P3 S1
I tried to set it to M569 P4 S1, but hat hung my board.

How can I switch over to use my E1 motor port on my board?

Looking at it now, the driver chip is shared between the E0 and E1 stepper motor ports. Correct?

If that chip is fried, I'd rather not trust my soldering skills to replace it (or any other chip on this board to be honest). How can I troubleshoot this down to the chip that is at fault (1 only have a digital multimeter)?

dc42

@dennishall said in Duet2 Wifi E0 stopped working:

Looking at it now, the driver chip is shared between the E0 and E1 stepper motor ports. Correct?

No, they use separate chips.

Check the E0 stepper motor wiring for short-circuits. If you have had the Duet for less than 6 months and it is a genuine UK-manufactured one, you can claim a repair or replacement under warranty.

To use the E1 motor in place of the E0 motor, the simplest way is to replace D0 in your M563 line in config.g by D1.

DennisHall

Thanks for the info.
I'll change me config.g and see if I can get that to work before replacing the board so I can fully and decisively identify what is, and is not functioning on the board.

It definitely is your genuine one. I'm not a fan of Chinese knock-offs.

If you re-read my OP, I had swapped cables with my Y Stepper and the problem followed the Duet2 port. I also swapped steppers and the problem followed the Duet2 port.

As I purchased this through Spool3D Canada on April 09, 2019, do I contact them for a replacement?

DennisHall

@dc42 Just confirmed.
D0 is dead, D1 works.

Thanks for helping me to get running as I wait for your further direction on who to contact for the replacement board.

dc42

@dennishall said in Duet2 Wifi E0 stopped working:

As I purchased this through Spool3D Canada on April 09, 2019, do I contact them for a replacement?

Yes.