Issues with motors..... Don't move


  • administrators

    What did you mean by this in your earlier response:

    i send by console G91 and after G1 S2 X10.... and axis stiff, the same with Y and Z

    I unerstood that to mean that after you sent G1 S2 X10, the axis became harder to move by hand. But more recently you said:

    The motors ever, after send the gcode (G1 S2 X-10 or G1 S2 Y-10 or G1 S2 Z-10), are smooth to move, are not energiced....

    Which is correct?

    Is this Duet still within the warranty period? (as of when you first reported this issue).



  • The axis are smooth... Its easy move(after command move it)... Sorry for my english, Its not very good



  • @dc42 said in Issues with motors..... Don't move:

    Is this Duet still within the warranty period? (as of when you first reported this issue).

    hi,

    this is complicated....

    The first time I bought the Duet board, it was this:

    Order ID: 1957
    Date Added: 10/08/2017

    and, in the middle of last year, it was changed, by a Duet 2 board, since the original, stopped working. The exact date I can not find it.

    And this second unit is the one that has stopped working.

    SUMMARY:

    • The original purchase was made on 10/8/2017
    • The current unit, installed in the middle of last year, I can not find the date


  • Please... i am waiting instructions

    What can i do?



  • Well....

    I think, Duet 2 its dead.... i d'like buy another board.... but i have some questions:

    • I have see, there is a Spanish retailer, BricoGeek. The product in the retailer its Duet Wifi, but the specifications seems DUET 2 Wifi. Can anyone check this? What model its.
    • I suppose, that i buy the board in these retailer, BricoGeek, follow using the official support and use of this forum.
    • In the e-shop, the image seems have 2 fuse in board, my actual Duet2, only have one. Why? (In web refer as 1.04 version)
    • And the most important.... WHY MY ACTUAL DUET, its partial dead. If i dont know why its dead,... there is a lot of possibilities that the new unit deads again for the same problem......

  • administrators

    Duet WiFi and Duet 2 WiFi are the same thing. We added the 2 to distinguish the Duet WiFi/Ethernet/Maestro from the generation 1 boards (Duet 06, Duet 085).

    In line with our policy of continuous improvement, we've gone through several PCB revisions to make minor improvements, to better work with evolving usage patterns. See https://duet3d.dozuki.com/Wiki/Hardware_Overview#Section_PCB_revision_history for the details.

    Your Duet is well out of warranty, but if you want to send it to me then I will attempt to diagnose the fault, tell you what I think may have caused it, and see if a repair is possible.



  • Hi,

    For test purposes....

    With only a USB wire conected... Duet its capable of move stepper motors? Or need a 24v Psu conected?



  • Hi

    One doubt... In Duet 2,rev 1 03.... Fuse in board. What components protect?



  • Hi,

    While I was packing the Duet 2 plate (rev 1.3) for send us, I think I've seen the problem ..... I do not know how I have not noticed before, because it seems VERY obvious.

    The E0 driver is burned ...

    Duet 2 1_3 Photo Sttepers A.jpg

    Duet 2 1_3 Photo Sttepers B.jpg

    Now the theme is to know why, so as not to repeat it.

    Any idea why?

    If you do not tell me otherwise, upon discovering this evidence, I will send you the plaque tomorrow morning.


  • administrators

    That explains why the E0 driver isn't working, but not the issue with the other motors. When your board arrives, I'll look at why the other motors don't move.

    See my response to your other post for how to avoid blowing drivers.



  • Have you examined boars



  • David,

    I have just had exactly the same failure mode. Duet Wifi, Firmware 2.02, board V1.03 from Filastruder.

    I changed the E0 motor to a 0.9 degree E3D, literally an unplug ( while off ) and re-plug. Changed e-steps in config.g, and bang! E0 fails to ground. I since tried the motor and cable on an old MKS gen L and it works fine btw.

    Measuring resistance across GND and motor outputs show a dead short, same to +VIN.

    Other motors refuse to work, but otherwise all other functions are ok ( heaters, endstops, and IR sensor detection ).

    This board was only soak tested on the machine I was modifying cycling X Y Z for 10 - 12 hours on Saturday after being in storage for since new ( March last year ).

    Ideas ?

    Keith


  • administrators

    I tested the board from @peirof. The blown stepper driver was messing up the SPI control signals to the other drivers. When I removed the blown driver, the others worked.



  • Hi....

    I undestand.... the board can be reused. No?

    I will have to change asignaments of drivers to stepper motors?... or for a 3d Scanner?... or with Duet x5?

    What stepper has down?.. and posible causes?

    what we do? (for sending, if is reusable)

    Thanks #dc42



  • Looks like the solder reflow station is going to get a workout .....

    I have 5 Duet wifi and this is the first faulty one. It's a shame it blew up so soon after commissioning though.



  • @dc42

    David, I have desoldered the E0 ( drive 3 ) TMC 2660 now, and there are blown tracks underneath the chip.

    I have made sure there are no shorts ( microscope ), but the firmware is still reporting :

    Error: short-to-ground reported by driver(s) 3
    Error: over temperature shutdown reported by driver(s) 3

    Is this expected when E0 driver chip not connected to SPI ? How do I get rid of the warnings / errors reported for this driver only ?

    Otherwise X,Y,Z and E1 functionality has been restored.

    Keith


  • administrators

    A missing driver will be read as all status bits set, including over temperature warning, over temperature error, and short to ground. Until you fit a new driver, you can use the R-1 parameter of the M569 command for that driver to suppress them.



  • @dc42

    Thanks David. Board is too damaged (I think) to refit another driver.

    I have got it all reinstalled with the config changes you proposed, and intend to use as a single extruder system.

    I just need to set the config for heater1, thermocouple 1, extruder 2, and tool 0 so that I dont need to change gcode .

    Keith


  • administrators

    @tkward, you can stick with your existing connections and config, except connect the extruder motor to E1 instead of E0, and put this line in config.g early on before any M350 and M906 commands:

    M584 X0 Y1 Z2 E4



  • @dc42 said in Issues with motors..... Don't move:

    ommand for that driver to suppress them

    In my faulty Duet.... i can do as TKWARD.... Desolder faulty driver...Suppress that driver.... and remap another driver to this axis... In this moment, i only use 3(towers) + 1 Extruder. And Duet has 5 as default.

    Can do this?

    Or..... Attach a Duet X2, and remap drivers


 

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