Did my board jist fry?!!! All lights work...but no movement?

A Former User · 13 Dec 2020, 13:55

one post is enough btw

check your fuse and tell us which board it is etc etc ref https://forum.duet3d.com/topic/5910/guide-for-posting-requests-for-help

skunkworks · 13 Dec 2020, 14:09

@bearer thank you! My board is thr Ethernet 2 maestro.
I just replaced power supply. I noticed this when I did switch to 24v from 12v. Thats another possibility to look at?

All lights and correct and voltages have been doublw checked

Veti · 13 Dec 2020, 14:25

@skunkworks said in Did my board jist fry?!!! All lights work...but no movement?:

I noticed this when I did switch to 24v from 12v.

did you switch the heater cartridge and the bed?
if not do not turn on your printer.

Phaedrux · 13 Dec 2020, 20:52

What exactly stopped working?
Can you still access the web interface?

dc42 · 13 Dec 2020, 22:29

See https://duet3d.dozuki.com/Wiki/What_to_do_if_your_Duet_won't_respond.

skunkworks · 14 Dec 2020, 02:38

@dc42 Thank you so much for responding quickly!
https://youtu.be/V-bLzPDEdcE
Here is a video showing everything going on.

It has the right green lights. 23.9 v to the board. And the short happened After a wire came loose.

I saw it burn and give off a small amount of smoke to% my drivers. But signal chain wise the short must have come after the board? Is that true? I waz plugged from the duet the e0 to 4th axis module.
Thank you again

Phaedrux · 14 Dec 2020, 02:54

@skunkworks said in Did my board jist fry?!!! All lights work...but no movement?:

4th axis module.

What is this?

elmoret · 14 Dec 2020, 03:42

Where did you buy the board from?

skunkworks · 14 Dec 2020, 10:22

@Phaedrux 4th axis cnc that I will send gcode to from the gorgeous duet browser gui.

Duet browser connects great, but when yoy try and jog the machine manually . whar used to work the night before perfectly... Stopped working the next day?

Can you see Or catch anything wrong with this video?

If there are diodes in the board after the stepper driver on the maestro 2, wouldn't they limit any current coming back up to the board?

skunkworks · 14 Dec 2020, 17:41

@elmoret Thank you. I bought it online years ago. Not sure I can remember. Why do ask?

Phaedrux · 14 Dec 2020, 18:11

Pull the board from the nest, disconnect any wiring, pull the SD card, and connect it to USB on your PC and see if anything shows up in device manager.

What LEDs light up when connected to USB?

Does anything get hot when connected to USB?

If it does show up in device manager, what does it show up as?

If it does show up as a Duet, can you connect to it via YAT terminal software?

j3d · 9 Jan 2021, 16:31

Is it possible that the anti-static bag is conductive? Do what Phaedrux recommended and pull it out of the printer and place it on a non-conductive surface.

A Former User · 9 Jan 2021, 22:45

(Everything that is ESD had to be conductive to some degree in order for it to dissipate the static charge to ground (when connected to ground))

j3d · 11 Jan 2021, 00:14

Yep, so my thought was that if the board was placed on an ESD bag while it was powered, the slight conductivity could have shorted some near-by pins on the back of the board.