z motor loses strength?
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i'm using all on the expansion board, but i have 2nd extruder free, and regular Z connection free.
EDIT: Issue solved, just changed drives! -
Soo it was solved, and it sort of still is BUT:
When i jog the Z motors they all work fine.
But when i start a print, somehow one of the motors loses strength again, but when i takeover manually it works again......
Getting quite sick of getting these lil bugs fixed
edit: i'm testing my last open drive right now, but it's sad that i would keep losing drive after drive
Edit2: issue remains after switching drives.... -
When you used M584 to assign drivers to the Z axis, did you remember to redefine the extruder drivers too?
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I'm currently only reassigning the axes in the homez.g file, and when I home manually everything is fine, only when i print a gcode it fails when homing.
Do i need to reassign the extruder everytime? -
@napalm1432 said in z motor loses strength?:
I'm currently only reassigning the axes in the homez.g file, and when I home manually everything is fine, only when i print a gcode it fails when homing.
Do i need to reassign the extruder everytime?No, but you must reassign the extruders in the M584 command in config.g where you do the initial driver remapping.
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i do reassign the extruder in config.g at the end of the file
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I did some more testing, and a had a gcode made in the newer version of cura, because of the M106 command missing the P parameter, but it only fails on that motor with a file from this version of cura, before i used Cura 15.04.6 and in that version it doesn't have the problem with the motor
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@napalm1432 said in z motor loses strength?:
i do reassign the extruder in config.g at the end of the file
That should be done in the same M584 command that you reassign Z, and should be before any M906, M915 and M350 commands.
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okay, i changed the config to reflect this change, but still having the same issue, right now it also happened with the older cura's gcode.
It seems to not even be powered, might it help to include the extruder mapping in each M584?EDIT: Never mind this comment, forgot to change my homing code, i'll be back after this!
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Yup my bad, it works now! (haven't tested with the newest version of Cura yet though)
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You don't need to reassign the extruders in all M584 commands that you use, just in the first one - because when you assign any driver numbered 4 or higher to be an axis, it keeps its default assignment as an extruder as well unless you redefine the extruder drives.
