Z Motor weak / one missing [solved for now]
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@supraguy said in Z Motor weak / one missing:
then that motor will be open circuit, since the second motor boss is in series with the first one.
Jumpers are present,and installed as per factory. could they be defective? i doubt but at this point... i'll check
thanks
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[Update] From what i hear from theZ axis motor is that the signal frequency is too high and motors start skipping assoonas they recieve a signal . going downward is easier...
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Reduced the Z acceleration from 200 to 50. Now going up and down as expected.
Still no output from drive 2 Z motor... -
@Buj
Z axis acceleration is probably too high, if there is no mechanical problem. -
Mouvement out of 3 motors remapped as per config with low acceleration, still missing the 4th motor connected to Z output of DUET wifi
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Did you correct the M584 command as @SupraGuy suggested? That's very important, see the bold text at https://duet3d.dozuki.com/Wiki/GCode#Section_M584_Set_drive_mapping.
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the assign beeing M584 X0 Y1 Z2:4:5:6 E3
i understand that etruder is assign to 3? isnt it?
how do i unassign a drive? -
@buj said in Z Motor weak / one missing:
the assign beeing M584 X0 Y1 Z2:4:5:6 E3
i understand that etruder is assign to 3? isnt it?
how do i unassign a drive?Yes, that M584 command is correct. Do you still have the problem?
It may help diagnose the problem if you upgrade to firmware 2.02RC3 because it has better stepper driver diagnostics.
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The printer is on the move to the Maker Fair. will persue at a later date.
Thanks#
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The reason for explicitly assigning E to drive 3 is that by default it would be ... E3:4 -- with drive 4 also assigned as an E axis. (As per the bolded text in the article dc42 linked.)
